HNI / HNI Corporation - Depositi SEC, Relazione annuale, dichiarazione di delega

Published CUSIP Number: Revolving Credit CUSIP Number: CREDIT AGREEMENT Dated as of September 5, 2025 HNI CORPORATION, as Borrower, CERTAIN DOMESTIC SUBSIDIARIES OF THE BORROWER FROM TIME TO TIME PARTY HERETO, as Subsidiary Guarantors THE LENDERS PAR

Exhibit 10.1 EXECUTION VERSION Published CUSIP Number: Revolving Credit CUSIP Number: CREDIT AGREEMENT Dated as of September 5, 2025 among HNI CORPORATION, as Borrower, CERTAIN DOMESTIC SUBSIDIARIES OF THE BORROWER FROM TIME TO TIME PARTY HERETO, as Subsidiary Guarantors THE LENDERS PARTIES HERETO and WELLS FARGO BANK, NATIONAL ASSOCIATION, as Administrative Agent, JPMORGAN CHASE BANK, N.A., as Sy

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 5, 2025 HNI Corporation

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 5, 2025 HNI Corporation (Exact Name of Registrant as Specified in its Charter) Iowa 001-14225 42-0617510 (State or other jurisdiction of incorporation or organization) (Comm

The following communications were provided to HNI Corporation dealer partners on August 8, 2025:

Filed by HNI Corporation (Commission File No.: 001-14225) Pursuant to Rule 425 of the Securities Act of 1933 Deemed filed pursuant to 14a-12 under the Secrities Exchange Act of 1934 Subject Company: Steelcase Inc. (Commission File No.: 001-13873) August 8, 2025 The following communications were provided to HNI Corporation dealer partners on August 8, 2025: Customer Letter Template: Dear [Client/Pa

Filed by HNI Corporation

Filed by HNI Corporation (Commission File No.: 001-14225) Pursuant to Rule 425 of the Securities Act of 1933 Deemed filed pursuant to 14a-12 under the Securities Exchange Act of 1934 Subject Company: Steelcase Inc. (Commission File No.: 001-13873) August 6, 2025 The following communication was sent to employees of Steelcase Inc. on August 6, 2025: HNI Corporation 600 East Second Street, Muscatine,

Speaking Points for Dealers (verbal use with dealers—phone calls, etc.)

Filed by HNI Corporation (Commission File No.: 001-14225) Pursuant to Rule 425 of the Securities Act of 1933 Deemed filed pursuant to 14a-12 under the Securities Exchange Act of 1934 Subject Company: Steelcase Inc. (Commission File No.: 001-13873) August 4, 2025 The following information was provided to certain members of HNI Corporation on August 4, 2025: Speaking Points for Dealers (verbal use w

Dealer Letter

Filed by HNI Corporation (Commission File No.: 001-14225) Pursuant to Rule 425 of the Securities Act of 1933 Deemed filed pursuant to 14a-12 under the Securities Exchange Act of 1934 Subject Company: Steelcase Inc. (Commission File No.: 001-13873) August 4, 2025 The following letter was sent to dealer partners of HON, Allsteel, and Kimball International on August 4, 2025: Dealer Letter SUBJECT: HN

HNI CORPORATION TO ACQUIRE STEELCASE INC. Highly Complementary Brand Portfolios, Dealer Networks, and Industry Segments will Enhance Customer Reach Combined Capabilities to Drive Accretion and Accelerate Strategic Initiatives to Better Serve Customer

Exhibit 99.1 HNI Corporation 600 East Second Street, Muscatine, Iowa 52761, Tel 563 272 7400, Fax 563 272 7347, hnicorp.com News Release HNI CORPORATION TO ACQUIRE STEELCASE INC. Highly Complementary Brand Portfolios, Dealer Networks, and Industry Segments will Enhance Customer Reach Combined Capabilities to Drive Accretion and Accelerate Strategic Initiatives to Better Serve Customers HNI and Ste

AGREEMENT AND PLAN OF MERGER by and among HNI CORPORATION, GERANIUM MERGER SUB I, INC., GERANIUM MERGER SUB II, LLC, STEELCASE INC. Dated as of August 3, 2025 TABLE OF CONTENTS

Exhibit 2.1 AGREEMENT AND PLAN OF MERGER by and among HNI CORPORATION, GERANIUM MERGER SUB I, INC., GERANIUM MERGER SUB II, LLC, and STEELCASE INC. Dated as of August 3, 2025 TABLE OF CONTENTS Page Article I THE MERGERS Section 1.1 The Mergers 2 Section 1.2 The Closing 2 Section 1.3 Effective Time 2 Section 1.4 Articles of Incorporation; Bylaws 3 Section 1.5 Board of Directors; Officers 3 Section

HNI CORPORATION TO ACQUIRE STEELCASE INC. Highly Complementary Brand Portfolios, Dealer Networks, and Industry Segments will Enhance Customer Reach Combined Capabilities to Drive Accretion and Accelerate Strategic Initiatives to Better Serve Customer

Exhibit 99.1 HNI Corporation 600 East Second Street, Muscatine, Iowa 52761, Tel 563 272 7400, Fax 563 272 7347, hnicorp.com News Release HNI CORPORATION TO ACQUIRE STEELCASE INC. Highly Complementary Brand Portfolios, Dealer Networks, and Industry Segments will Enhance Customer Reach Combined Capabilities to Drive Accretion and Accelerate Strategic Initiatives to Better Serve Customers HNI and Ste

VOTING AND SUPPORT AGREEMENT

Exhibit 99.3 VOTING AND SUPPORT AGREEMENT This VOTING AND SUPPORT AGREEMENT (as the same may be amended from time to time in accordance with its terms, this “Agreement”), dated as of August 3, 2025, by and among the Persons listed on Schedule A hereto (each a “Shareholder” and together, the “Shareholders”) in each such person’s capacity as a shareholder of Steelcase Inc., a Michigan corporation (t

VOTING AND SUPPORT AGREEMENT

Exhibit 99.4 VOTING AND SUPPORT AGREEMENT This VOTING AND SUPPORT AGREEMENT (as the same may be amended from time to time in accordance with its terms, this “Agreement”), dated as of August 3, 2025, by and among the Persons listed on Schedule A hereto (each a “Shareholder” and together, the “Shareholders”) in each such person’s capacity as a shareholder of Steelcase Inc., a Michigan corporation (t

VOTING AND SUPPORT AGREEMENT

Exhibit 99.3 VOTING AND SUPPORT AGREEMENT This VOTING AND SUPPORT AGREEMENT (as the same may be amended from time to time in accordance with its terms, this “Agreement”), dated as of August 3, 2025, by and among the Persons listed on Schedule A hereto (each a “Shareholder” and together, the “Shareholders”) in each such person’s capacity as a shareholder of Steelcase Inc., a Michigan corporation (t

Filed by HNI Corporation

Filed by HNI Corporation (Commission File No.: 001-14225) Pursuant to Rule 425 of the Securities Act of 1933 Deemed filed pursuant to 14a-12 under the Securities Exchange Act of 1934 Subject Company: Steelcase Inc. (Commission File No.: 001-13873) August 4, 2025 The following letter was sent to HNI Members on August 4, 2025: HNI Corporation 600 East Second Street, Muscatine, Iowa 52761, Tel 563 27

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (date of earliest event reported): August 4, 2025 (August 3, 2025) H

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (date of earliest event reported): August 4, 2025 (August 3, 2025) HNI Corporation (Exact Name of Registrant as Specified in its Charter) Iowa 001-14225 42-0617510 (State or other jurisdiction (Commission (IRS Employer

Confidential AUGUST 4, 2025 HNI to Acquire Steelcase – Investor Briefing

Exhibit 99.2 Confidential AUGUST 4, 2025 HNI to Acquire Steelcase – Investor Briefing 2 This communication contains forward - looking statements within the meaning of Section 21E of the Securities Exchange Act of 1934 and Section 27A of the Securities Act of 1933, which involve risks and uncertainties. Any statements about HNI’s, Steelcase’s or the combined company’s plans, objectives, expecta tio

HNI Has Announced an Agreement to Acquire Steelcase

Filed by HNI Corporation (Commission File No.: 001-14225) Pursuant to Rule 425 of the Securities Act of 1933 Deemed filed pursuant to 14a-12 under the Securities Exchange Act of 1934 Subject Company: Steelcase Inc. (Commission File No.: 001-13873) August 4, 2025 The following message was sent to HNI Corporation leaders of production and distribution members on August 4, 2025: Stand-Up Meeting Mess

VOTING AND SUPPORT AGREEMENT

Exhibit 99.4 VOTING AND SUPPORT AGREEMENT This VOTING AND SUPPORT AGREEMENT (as the same may be amended from time to time in accordance with its terms, this “Agreement”), dated as of August 3, 2025, by and among the Persons listed on Schedule A hereto (each a “Shareholder” and together, the “Shareholders”) in each such person’s capacity as a shareholder of Steelcase Inc., a Michigan corporation (t

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (date of earliest event reported): August 4, 2025 (August 3, 2025) H

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (date of earliest event reported): August 4, 2025 (August 3, 2025) HNI Corporation (Exact Name of Registrant as Specified in its Charter) Iowa 001-14225 42-0617510 (State or other jurisdiction (Commission (IRS Employer

Filed by HNI Corporation

Filed by HNI Corporation (Commission File No.: 001-14225) Pursuant to Rule 425 of the Securities Act of 1933 Deemed filed pursuant to 14a-12 under the Securities Exchange Act of 1934 Subject Company: Steelcase Inc. (Commission File No.: 001-13873) August 4, 2025 The following was posted to social media on August 4, 2025: LinkedIn: Facebook: Instagram: Forward-Looking Statements This communication

HNI Corporation Announces Agreement to Acquire Steelcase Leader Speaking Points (Workplace Furnishings & Corporate) This resource is intended to be used verbally with your team—not for broad distribution.

Filed by HNI Corporation (Commission File No.: 001-14225) Pursuant to Rule 425 of the Securities Act of 1933 Deemed filed pursuant to 14a-12 under the Securities Exchange Act of 1934 Subject Company: Steelcase Inc. (Commission File No.: 001-13873) August 4, 2025 The following speaking points and Q&A information were provided to HNI Corporation managers and leaders on August 4, 2025: Leader Speakin

Filed by HNI Corporation

Filed by HNI Corporation (Commission File No.: 001-14225) Pursuant to Rule 425 of the Securities Act of 1933 Deemed filed pursuant to 14a-12 under the Securities Exchange Act of 1934 Subject Company: Steelcase Inc. (Commission File No.: 001-13873) August 4, 2025 The following was posted to internal social media on August 4, 2022: Achievers: Achievers: KII MemberNews: Forward-Looking Statements Thi

AGREEMENT AND PLAN OF MERGER by and among HNI CORPORATION, GERANIUM MERGER SUB I, INC., GERANIUM MERGER SUB II, LLC, STEELCASE INC. Dated as of August 3, 2025 TABLE OF CONTENTS

Exhibit 2.1 AGREEMENT AND PLAN OF MERGER by and among HNI CORPORATION, GERANIUM MERGER SUB I, INC., GERANIUM MERGER SUB II, LLC, and STEELCASE INC. Dated as of August 3, 2025 TABLE OF CONTENTS Page Article I THE MERGERS Section 1.1 The Mergers 2 Section 1.2 The Closing 2 Section 1.3 Effective Time 2 Section 1.4 Articles of Incorporation; Bylaws 3 Section 1.5 Board of Directors; Officers 3 Section

HNI Corporation Announces Agreement to Acquire Steelcase Sales & Customer Support Q&A Document This resource is intended to help Sales and Customer Support team members answer questions they may receive from dealers and customers—not for broad distri

Filed by HNI Corporation (Commission File No.: 001-14225) Pursuant to Rule 425 of the Securities Act of 1933 Deemed filed pursuant to 14a-12 under the Securities Exchange Act of 1934 Subject Company: Steelcase Inc. (Commission File No.: 001-13873) August 4, 2025 The following Q&A information was provided to certain members of HNI Corporation on August 4, 2025: HNI Corporation Announces Agreement t

Confidential AUGUST 4, 2025 HNI to Acquire Steelcase – Investor Briefing

Exhibit 99.2 Confidential AUGUST 4, 2025 HNI to Acquire Steelcase – Investor Briefing 2 This communication contains forward - looking statements within the meaning of Section 21E of the Securities Exchange Act of 1934 and Section 27A of the Securities Act of 1933, which involve risks and uncertainties. Any statements about HNI’s, Steelcase’s or the combined company’s plans, objectives, expecta tio

Filed by HNI Corporation

Filed by HNI Corporation (Commission File No.: 001-14225) Pursuant to Rule 425 of the Securities Act of 1933 Deemed filed pursuant to 14a-12 under the Securities Exchange Act of 1934 Subject Company: Steelcase Inc. (Commission File No.: 001-13873) August 4, 2025 The following is a transcript of the investor call held by HNI Corporation on August 4, 2025: 08 - 04 - 2025 HNI Corp Investor Update Cal

HNI CEO Script for Announcement Day Member Meetings – WPF & Corporate

Filed by HNI Corporation (Commission File No.: 001-14225) Pursuant to Rule 425 of the Securities Act of 1933 Deemed filed pursuant to 14a-12 under the Securities Exchange Act of 1934 Subject Company: Steelcase Inc. (Commission File No.: 001-13873) August 4, 2025 The following information was used to host meetings for members of HNI Corporation on August 4, 2025: Member Meeting Slides: Member Meeti

Filed by HNI Corporation

Filed by HNI Corporation (Commission File No.: 001-14225) Pursuant to Rule 425 of the Securities Act of 1933 Deemed filed pursuant to 14a-12 under the Securities Exchange Act of 1934 Subject Company: Steelcase Inc. (Commission File No.: 001-13873) August 4, 2025 The following letter was sent to supplier partners of HNI Workplace Furnishings and Kimball International on August 4, 2025: Senders: Ple

PART I. FINANCIAL INFORMATION

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 28, 2025 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 1-14225 HNI Corporation Iowa (E

HNI CORPORATION REPORTS SECOND QUARTER 2025 RESULTS Earnings and revenue grow year-over-year; 2025 outlook improves modestly

HNI Corporation 600 East Second Street, Muscatine, Iowa 52761, Tel 563 272 7400, Fax 563 272 7347, hnicorp.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 24, 2025 HNI Corporation (Ex

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 24, 2025 HNI Corporation (Exact name of registrant as specified in its charter) Iowa 1-14225 42-0617510 (State or other jurisdiction of incorporation) (Commission File Number) (I

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K ☒ ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number: 1-14225 A. Full title of the plan and the address of the plan, if different from

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 16, 2025 Commission File Num

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 16, 2025 Commission File Number: 1-14225 HNI Corporation (Exact name of registrant as specified in its charter) Iowa 42-0617510 (State or other jurisdiction of incorporation) (IR

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report HNI Corporation (Exact Name of Registrant as Specified in its Charter)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report HNI Corporation (Exact Name of Registrant as Specified in its Charter) Iowa 1-14225 42-0617510 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.) 600 East Second Street, P.O. Box 1109, Muscatine, Iowa 52761-0071 (Address of Principal E

HNI Corporation Conflict Minerals Report For the Year Ended December 31, 2024 Conflict Minerals Rule Overview

EXHIBIT 1.01 HNI Corporation Conflict Minerals Report For the Year Ended December 31, 2024 Conflict Minerals Rule Overview This conflict minerals report of HNI Corporation (the Corporation, we or our) for the year ended December 31, 2024, is presented to comply with Rule 13p-1 under the Securities Exchange Act of 1934 (the Rule). The Rule imposes reporting obligations on Securities and Exchange Co

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 15, 2025 HNI Corporation (Exa

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 15, 2025 HNI Corporation (Exact name of registrant as specified in its charter) Iowa 1-14225 42-0617510 (State or other jurisdiction of incorporation) (Commission File Number) (IR

PART I. FINANCIAL INFORMATION

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 29, 2025 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 1-14225 HNI Corporation Iowa (

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 7, 2025 HNI Corporation (Exac

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 7, 2025 HNI Corporation (Exact name of registrant as specified in its charter) Iowa 1-14225 42-0617510 (State or other jurisdiction of incorporation) (Commission File Number) (IRS

HNI CORPORATION REPORTS FIRST QUARTER 2025 RESULTS Delivered year-over-year earnings and revenue growth; 2025 earnings outlook unchanged

HNI Corporation 600 East Second Street, Muscatine, Iowa 52761, Tel 563 272 7400, Fax 563 272 7347, hnicorp.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of Commission Only (as permitted by Rule 14a-6(e)(2))

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

TABLE OF CONTENTS UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a party other than the Registrant  ☐ Check the appropriate box:  ☐ Preliminary Proxy Statement  ☐ Confidential, for Use of Commission Only (as permitted

HNI Corporation Incentive Compensation Recovery Policy

EXHIBIT 97 HNI Corporation Policy Category: HMR Number: 01HMR-02-006 Date: 10/02/2023 Title: Incentive Compensation Recovery Policy Issued By: Steven Bradford Approved By: Jeff Lorenger Statement of Policy In the event HNI Corporation (the “Corporation”) is required to prepare an Accounting Restatement, except as otherwise set forth in this Incentive Compensation Recovery Policy (this “Policy”), the Corporation shall recover, reasonably promptly, the Excess Incentive Compensation received by any Covered Executive during the Recoupment Period.

Subsidiaries of the Registrant

EXHIBIT 21 SUBSIDIARIES OF THE REGISTRANT Subsidiary Country/State of Incorporation Doing Business As Allsteel LLC Illinois Allsteel LLC; HNI Global; HNI One; HNI One - Global Accounts; One from HNI; HNI Canada Design Holdings Inc.

HNI Corporation Insider Trading Policy

EXHIBIT 19 HNI Corporation Policy on Securities Trades by Directors, Officers and Members Purpose This Policy on Securities Trades by Directors, Officers and Members (“Policy”) provides guidelines with respect to transactions in securities of HNI Corporation (the “Corporation” or “HNI”) and securities of other covered companies referred to below.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 28, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SE

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 28, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 1-14225 HNI Corporation Iowa (Exact

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 20, 2025 Commission File Number: 1-14225 HNI Corporation (Exact name of registrant as specified in its charter) Iowa 42-0617510 (State or other jurisdiction of incorporation)

HNI CORPORATION REPORTS FOURTH QUARTER AND FISCAL YEAR 2024 RESULTS Full-year EPS grew double-digits for the third consecutive year

HNI Corporation 600 East Second Street, Muscatine, Iowa 52761, Tel 563 272 7400, Fax 563 272 7347, hnicorp.

HNI CORPORATION REPORTS THIRD QUARTER 2024 RESULTS Double-digit EPS growth fueled by profit transformation and synergy acceleration

HNI Corporation 600 East Second Street, Muscatine, Iowa 52761, Tel 563 272 7400, Fax 563 272 7347, hnicorp.

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 29, 2024 Commission File Number: 1-14225 HNI Corporation (Exact name of registrant as specified in its charter) Iowa 42-0617510 (State or other jurisdiction of incorporation)

PART I. FINANCIAL INFORMATION

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 28, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number: 1-14225 HNI Corporation Iowa (Exact name of registrant as sp

HNI / HNI Corporation / STATE STREET CORP Passive Investment

SC 13G/A 1 HNICorp.htm SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. )* HNI CORP (Name of Issuer) COMMON STOCK (Title of Class of Securities) 404251100 (CUSIP Number) September 30, 2024 (Date of Event Which Requires Filing of This Statement) Check the appropriate box to designate the rule pursuant to which this Sched

HNI CORPORATION APPOINTS NEW CHIEF FINANCIAL OFFICER

HNI Corporation 600 East Second Street, Muscatine, Iowa 52761, Tel 563 272 7400, Fax 563 272 7347, hnicorp.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 3, 2024 (September 27, 20

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 3, 2024 (September 27, 2024) Commission File Number: 1-14225 HNI Corporation Iowa 42-0617510 (State of incorporation) (IRS Employer Identification No.) 600 East Second Street

As filed with the Securities and Exchange Commission on August 20, 2024

As filed with the Securities and Exchange Commission on August 20, 2024 Registration No.

HNI CORPORATION PROFIT SHARING RETIREMENT PLAN As Amended and Restated Effective January 1, 2022 Date of Adoption: December 17, 2021

Exhibit 4.3 HNI CORPORATION PROFIT SHARING RETIREMENT PLAN As Amended and Restated Effective January 1, 2022 Date of Adoption: December 17, 2021 TABLE OF CONTENTS Page ARTICLE 1. HISTORY, APPLICATION AND PURPOSES OF THE PLAN 1 Section 1.1 - History of the Plan 1 Section 1.2 - Application of This Plan Document 2 Section 1.3 - Purposes of the Plan 2 ARTICLE 2. DEFINITIONS 2 Section 2.1 - Definitions

Table 1: Newly Registered Securities

Calculation of Filing Fee Tables S-8 HNI CORP Table 1: Newly Registered Securities Security Type Security Class Title Fee Calculation Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee 1 Equity Common Stock, par value $1.

PART I. FINANCIAL INFORMATION

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 29, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number: 1-14225 HNI Corporation Iowa (Exact name of registrant as specifi

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 25, 2024 Commission File Num

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 25, 2024 Commission File Number: 1-14225 HNI Corporation Iowa 42-0617510 (State of incorporation) (IRS Employer Identification No.) 600 East Second Street P. O. Box 1109 Muscatin

HNI Corporation 600 East Second Street, Muscatine, Iowa 52761, Tel 563 272 7400, Fax 563 272 7347, www.hnicorp.com HNI CORPORATION REPORTS SECOND QUARTER 2024 RESULTS Strong second quarter EPS fueled by Workplace Furnishings profit transformation, Ki

HNI Corporation 600 East Second Street, Muscatine, Iowa 52761, Tel 563 272 7400, Fax 563 272 7347, www.

HNI Corporation 600 East Second Street, Muscatine, Iowa 52761, Tel 563 272 7400, Fax 563 272 7347, www.hnicorp.com

HNI Corporation 600 East Second Street, Muscatine, Iowa 52761, Tel 563 272 7400, Fax 563 272 7347, www.

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 25, 2024 Commission File Number: 1-14225 HNI Corporation Iowa 42-0617510 (State of incorporation) (IRS Employer Identification No.) 600 East Second Street P. O. Box 1109 Muscatin

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K x ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2023 OR o TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number: 1-14225 A. Full title of the plan and the address of the plan, if different from

Conflict Minerals Report required by Items 1.01 and 1.02 of this Form.

EXHIBIT 1.01 HNI Corporation Conflict Minerals Report For the Year Ended December 31, 2023 1.Conflict Minerals Rule Overview This conflict minerals report of HNI Corporation (the Corporation, we or our) for the year ended December 31, 2023 is presented to comply with Rule 13p-1 under the Securities Exchange Act of 1934 (the Rule). The Rule imposes reporting obligations on Securities and Exchange C

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report HNI Corporation (Exact Name of Registrant as Specified in its Charter)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report HNI Corporation (Exact Name of Registrant as Specified in its Charter) Iowa 1-14225 42-0617510 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.) 600 East Second Street, P.O. Box 1109, Muscatine, Iowa 52761-0071 (Address of Principal E

Calculation of Filing Fee Tables Form S-8 (Form Type) HNI Corporation (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered Securities

Exhibit 107.1 Calculation of Filing Fee Tables Form S-8 (Form Type) HNI Corporation (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered Securities Security Type Security Class Title Fee Calculation Rule Amount Registered (1) Proposed Maximum Offering Price Per Unit (2) Maximum Aggregate Offering Price (2) Fee Rate Amount of Registration Fee Equity Common Stock, par val

As filed with the Securities and Exchange Commission on May 20, 2024

As filed with the Securities and Exchange Commission on May 20, 2024 Registration No.

HNI Corporation 2017 Equity Plan for Non-Employee Directors (incorporated by reference to Exhibit 4.3 to the Registrant's Form S-8 filed May 20, 2024)

Exhibit 4.3 2017 EQUITY PLAN FOR NON-EMPLOYEE DIRECTORS OF HNI CORPORATION (As Amended and Restated Effective February 13, 2024, with Share Increase Amendment effective May 16, 2024) TABLE OF CONTENTS ARTICLE I PURPOSES; EFFECT ON PRIOR PLANS 1 1.1 Purpose 1 1.2 Effect on Prior Plans 1 ARTICLE II DEFINITIONS 1 ARTICLE III ADMINISTRATION 4 3.1 Administration by the Board; Delegation 4 3.2 Administr

Financial Statements and Exhibits, Material Impairments, Costs Associated with Exit or Disposal Activities, Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 16, 2024 Commission File Number: 1-14225 HNI Corporation Iowa 42-0617510 (State of incorporation) (IRS Employer Identification No.) 600 East Second Street P. O. Box 1109 Muscatine

HNI Corporation 600 East Second Street, Muscatine, Iowa 52761, Tel 563 272 7400, Fax 563 272 7217, www.hnicorp.com

Exhibit 99.1 HNI Corporation 600 East Second Street, Muscatine, Iowa 52761, Tel 563 272 7400, Fax 563 272 7217, www.hnicorp.com News Release For Information Contact: Marshall H. Bridges, Senior Vice President, and Chief Financial Officer (563) 272-7400 Matthew S. McCall, Vice President, Investor Relations, and Corporate Development (563) 275-8898 HNI CORPORATION ANNOUNCES PLANT CONSOLIDATION MUSCA

PART I. FINANCIAL INFORMATION

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 30, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number: 1-14225 HNI Corporation Iowa (Exact name of registrant as specif

HNI Corporation 600 East Second Street, Muscatine, Iowa 52761, Tel 563 272 7400, Fax 563 272 7347, www.hnicorp.com HNI CORPORATION REPORTS FIRST QUARTER 2024 RESULTS Strong earnings growth driven by Workplace Furnishings profit transformation

HNI Corporation 600 East Second Street, Muscatine, Iowa 52761, Tel 563 272 7400, Fax 563 272 7347, www.

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 29, 2024 Commission File Number: 1-14225 HNI Corporation Iowa 42-0617510 (State of incorporation) (IRS Employer Identification No.) 600 East Second Street P. O. Box 1109 Muscati

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

TABLE OF CONTENTS UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a Party other than the Registrant  ☐ Check the appropriate box:  ☐ Preliminary Proxy Statement  ☐ Confidential, for Use of Commission Only (as permitted

UNITED STATES

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of Commission Only (as permitted by Rule 14a-6(e)(2))

Form of HNI Corporation Stock Incentive Plan for Legacy Kimball Employees Restricted Stock Unit Award Agreement (incorporated by reference to Exhibit 10.32 to the Registrant’s Annual Report on Form 10-K for the year ended December 30, 2023

EXHIBIT 10.32 HNI CORPORATION STOCK INCENTIVE PLAN FOR LEGACY KIMBALL EMPLOYEES RESTRICTED STOCK UNIT AWARD AGREEMENT ([Year/Month] Grant) [Name] (the “Employee”), congratulations on your selection as a Participant who will receive Restricted Stock Units under the HNI Corporation Stock Incentive Plan for Legacy Kimball Employees (the “Plan”). This Award Agreement provides a brief summary of the Em

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 30, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SE

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 30, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number: 1-14225 HNI Corporation Iowa (Exact name of registrant as specified i

Subsidiaries of the Registrant

EXHIBIT 21 SUBSIDIARIES OF THE REGISTRANT Subsidiary Country/State of Incorporation Doing Business As Allsteel LLC Illinois Allsteel LLC; HNI Global; HNI One; HNI One - Global Accounts; One from HNI; HNI Canada Design Holdings Inc.

Form of HNI Corporation Stock Incentive Plan for Legacy Kimball Employees Performance Stock Unit Award Agreement

EXHIBIT 10.33 HNI CORPORATION STOCK INCENTIVE PLAN FOR LEGACY KIMBALL EMPLOYEES PERFORMANCE UNIT AWARD AGREEMENT ([Year/Month] Grant) [Name] (the “Employee”), congratulations on your selection as a Participant who will receive Performance Units under the HNI Corporation Stock Incentive Plan for Legacy Kimball Employees (the “Plan”). This Award Agreement provides a brief summary of the Employee’s r

rporation Incentive C

EXHIBIT 97 HNI Corporation Policy Category: HMR Number: 01HMR-02-006 Date: 10/02/2023 Title: Incentive Compensation Recovery Policy Issued By: Steven Bradford Approved By: Jeff Lorenger Statement of Policy In the event HNI Corporation (the “Corporation”) is required to prepare an Accounting Restatement, except as otherwise set forth in this Incentive Compensation Recovery Policy (this “Policy”), the Corporation shall recover, reasonably promptly, the Excess Incentive Compensation received by any Covered Executive during the Recoupment Period.

HNI Corporation 600 East Second Street, Muscatine, Iowa 52761, Tel 563 272 7400, Fax 563 272 7347, www.hnicorp.com

HNI Corporation 600 East Second Street, Muscatine, Iowa 52761, Tel 563 272 7400, Fax 563 272 7347, www.

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 22, 2024 Commission File Number: 1-14225 HNI Corporation Iowa 42-0617510 (State of incorporation) (IRS Employer Identification No.) 600 East Second Street P. O. Box 1109 Musc

HNI / HNI Corporation / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 13)* Name of issuer: HNI Corp Title of Class of Securities: Common Stock CUSIP Number: 404251100 Date of Event Which Requires Filing of this Statement: December 29, 2023 Check the appropriate box to designate the rule pursuant to which this Schedule is filed: ☒ Rule 13d-

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 31, 2023 Commission File

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 31, 2023 Commission File Number: 1-14225 HNI Corporation Iowa 42-0617510 (State of incorporation) (IRS Employer Identification No.) 600 East Second Street P. O. Box 1109 Musca

HNI Corporation 600 East Second Street, Muscatine, Iowa 52761, Tel 563 272 7400, Fax 563 272 7347, www.hnicorp.com

HNI Corporation 600 East Second Street, Muscatine, Iowa 52761, Tel 563 272 7400, Fax 563 272 7347, www.

PART I. FINANCIAL INFORMATION

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number: 1-14225 HNI Corporation Iowa 42-0617510 (State of Incorporat

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 8, 2023 Commission File Nu

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 8, 2023 Commission File Number: 1-14225 HNI Corporation Iowa 42-0617510 (State of incorporation) (IRS Employer Identification No.) 600 East Second Street P. O. Box 1109 Muscati

HNI Corporation 600 East Second Street, Muscatine, Iowa 52761, Tel 563 272 7400, Fax 563 272 7347, www.hnicorp.com

HNI Corporation 600 East Second Street, Muscatine, Iowa 52761, Tel 563 272 7400, Fax 563 272 7347, www.

PART I. FINANCIAL INFORMATION

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended July 1, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number: 1-14225 HNI Corporation Iowa 42-0617510 (State of Incorporation) (

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K/A Amendment No. 1 CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 1, 2023 HN

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K/A Amendment No. 1 CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 1, 2023 HNI Corporation (Exact name of registrant as specified in its charter) Iowa 001-14225 42-0617510 (State or other jurisdiction of incorporation or organi

HNI CORPORATION UNAUDITED PRO FORMA CONDENSED COMBINED STATEMENT OF OPERATIONS FOR THE TWELVE MONTHS ENDED DECEMBER 31, 2022

Exhibit 99.2 HNI CORPORATION UNAUDITED PRO FORMA CONDENSED COMBINED STATEMENT OF OPERATIONS FOR THE TWELVE MONTHS ENDED DECEMBER 31, 2022 (in millions, except per share data) Reclassification Adjustments (Note 3) Transaction Accounting Adjustments (Note 5) HNI Corporation Kimball International, Inc. Pro Forma Combined Note Note Note Net sales $ 2,361.8 $ 718.6 $ (22.4 ) C, E $ - $ 3,058.0 Cost of

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K x ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2022 OR o TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number: 1-14225 A. Full title of the plan and the address of the plan, if different from

As filed with the Securities and Exchange Commission on June 1, 2023

As filed with the Securities and Exchange Commission on June 1, 2023 Registration No.

HNI Corporation Stock Incentive Plan for Legacy Kimball Employees (incorporated by reference to Exhibit 99.1 to the Registrant's Form S-8 filed June 1, 2023)*

Exhibit 99.1 HNI CORPORATION STOCK INCENTIVE PLAN FOR LEGACY KIMBALL EMPLOYEES 1. Purpose. The purpose of the HNI Corporation Stock Incentive Plan for Legacy Kimball Employees, formerly, the Kimball International, Inc. 2017 Stock Incentive Plan (the “Plan”) is to (a) align the personal interests of Plan Participants with the interests of the Company’s shareholders; (b) attract and retain the best

HNI Corporation 600 East Second Street, Muscatine, Iowa 52761, Tel 563 272 7400, Fax 563 272 7217, www.hnicorp.com

Exhibit 99.1 HNI Corporation 600 East Second Street, Muscatine, Iowa 52761, Tel 563 272 7400, Fax 563 272 7217, www.hnicorp.com News Release For Information Contact: Marshall H. Bridges, Senior Vice President and Chief Financial Officer (563) 272-7400 Matthew S. McCall, Vice President, Investor Relations and Corporate Development (563) 275-8898 HNI CORPORATION COMPLETES ACQUISITION OF KIMBALL INTE

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 1, 2023 HNI Corporation (Exa

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 1, 2023 HNI Corporation (Exact name of registrant as specified in its charter) Iowa 001-14225 42-0617510 (State or other jurisdiction of incorporation or organization) (Commissio

CALCULATION OF FILING FEE Form S-8

Exhibit 107.1 CALCULATION OF FILING FEE Form S-8 (Form type) HNI Corporation (Exact Name of Registrant as Specified in its Charter) Table I: Newly Registered Securities Security Type Security Class Title Fee Calculation Rule Amount Registered(1) Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price(2) Fee Rate Amount of Registration Fee Equity Common Stock, par value $1.00 per

First Additional Loan Amendment to Fourth Amended and Restated Credit Agreement, by and among HNI Corporation, certain domestic subsidiaries of HNI Corporation, as guarantors, certain lenders and Wells Fargo Bank, National Association, as administrative agent, dated as of June 1, 2023 (incorporated by reference to Exhibit 10.2 to the Registrant's Current Report on Form 8-K filed June 1, 2023)

Exhibit 10.2 Execution Version FIRST ADDITIONAL LOAN AMENDMENT TO FOURTH AMENDED AND RESTATED CREDIT AGREEMENT THIS FIRST ADDITIONAL LOAN AMENDMENT TO FOURTH AMENDED AND RESTATED CREDIT AGREEMENT (this “Amendment”), dated as of June 1, 2023, is by and among HNI CORPORATION, an Iowa corporation (the “Borrower”), the Domestic Subsidiaries of the Borrower party hereto (collectively, the “Guarantors”)

First Additional Loan Amendment to Term Loan Credit Agreement, by and among HNI Corporation, certain domestic subsidiaries of HNI Corporation, as guarantors, certain lenders and Wells Fargo Bank, National Association, as administrative agent, dated as of May 25, 2023 (incorporated by reference to Exhibit 10.1 to the Registrant's Current Report on Form 8-K filed June 1, 2023)

Exhibit 10.1 Execution Version FIRST ADDITIONAL LOAN AMENDMENT TO TERM LOAN CREDIT AGREEMENT THIS FIRST ADDITIONAL LOAN AMENDMENT TO TERM LOAN CREDIT AGREEMENT (this “Amendment”), dated as of May 25, 2023, is by and among HNI CORPORATION, an Iowa corporation (the “Borrower”), the Domestic Subsidiaries of the Borrower party hereto (collectively, the “Guarantors”), the Lender identified on the signa

From: Lorenger, Jeff (HNI Corp) To: Workplace Furnishings and Corporate Subject: Stronger Together Newsletter #5 Date: Wednesday, May 31, 2023 11:56:13 AM Attachments: Stronger Together Newsletter #5.pdf A Message to Members, Welcome to the fifth edi

Filed by HNI Corporation (Commission File No.: 001-14225) Pursuant to Rule 425 of the Securities Act of 1933 Subject Company: Kimball International, Inc. (Commission File No.: 000-03279) [The following information was provided to employees of HNI Corporation on May 31, 2023] From: Lorenger, Jeff (HNI Corp) To: Workplace Furnishings and Corporate Subject: Stronger Together Newsletter #5 Date: Wedne

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report HNI Corporation (Exact Name of Registrant as Specified in its Charter)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report HNI Corporation (Exact Name of Registrant as Specified in its Charter) Iowa 1-14225 42-0617510 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.) 600 East Second Street, P.O. Box 1109, Muscatine, Iowa 52761-0071 (Address of Principal E

Conflict Minerals Report required by Items 1.01 and 1.02 of this For

EXHIBIT 1.01 HNI Corporation Conflict Minerals Report For the Year Ended December 31, 2022 1.Conflict Minerals Rule Overview This conflict minerals report of HNI Corporation (the Corporation, we or our) for the year ended December 31, 2022 is presented to comply with Rule 13p-1 under the Securities Exchange Act of 1934 (the Rule). The Rule imposes reporting obligations on Securities and Exchange C

HNI Corporation Investor Presentation 2 This presentation contains "forward-looking" statements based on current expectations regarding future plans, events, outlook, objectives, financial performance, expectations for sales growth, and earnings per

Filed by HNI Corporation (Commission File No.: 001-14225) Pursuant to Rule 425 of the Securities Act of 1933 Subject Company: Kimball International, Inc. (Commission File No.: 000-03279) [On May 23, 2023, the following presentation was made available on HNI Corporation’s website] HNI Corporation Investor Presentation 2 This presentation contains "forward-looking" statements based on current expect

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 22, 2023 (May 17, 2023) Commi

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 22, 2023 (May 17, 2023) Commission File Number: 001-14225 HNI Corporation Iowa 42-0617510 (State of incorporation) (IRS Employer Identification No.) 600 East Second Street P. O. B

From: Lorenger, Jeff (HNI Corp) To: Workplace Furnishings and Corporate Subject: Stronger Together Newsletter #4 Date: Thursday, May 18, 2023 12:34:30 PM Attachments: Stronger Together Newsletter #4.pdf A Message to Members, Welcome to the fourth edi

Filed by HNI Corporation (Commission File No.: 001-14225) Pursuant to Rule 425 of the Securities Act of 1933 Subject Company: Kimball International, Inc. (Commission File No.: 000-03279) [The following information was provided to employees of HNI Corporation on May 18, 2023] From: Lorenger, Jeff (HNI Corp) To: Workplace Furnishings and Corporate Subject: Stronger Together Newsletter #4 Date: Thurs

PART I. FINANCIAL INFORMATION

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended April 1, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number: 1-14225 HNI Corporation Iowa 42-0617510 (State of Incorporation)

Raw Transcript 1-877-FACTSET www.callstreet.com Total Pages: 16 Copyright © 2001-2023 FactSet CallStreet, LLC 08-May-2023 HNI Corp. (HNI) Q1 2023 Earnings Call HNI Corp. (HNI) Q1 2023 Earnings Call Raw Transcript 08-May-2023 1-877-FACTSET www.callstr

Filed by HNI Corporation (Commission File No.: 001-14225) Pursuant to Rule 425 of the Securities Act of 1933 Subject Company: Kimball International, Inc. (Commission File No.: 000-03279) [The following is a transcript of a conference call held by HNI Corporation on May 8, 2023 to discuss first quarter fiscal 2023 results] Raw Transcript 1-877-FACTSET www.callstreet.com Total Pages: 16 Copyright ©

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 8, 2023 Commission File Numbe

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 8, 2023 Commission File Number: 1-14225 HNI Corporation Iowa 42-0617510 (State of incorporation) (IRS Employer Identification No.) 600 East Second Street P. O. Box 1109 Muscatine,

HNI Corporation 600 East Second Street, Muscatine, Iowa 52761, Tel 563 272 7400, Fax 563 272 7347, www.hnicorp.com

HNI Corporation 600 East Second Street, Muscatine, Iowa 52761, Tel 563 272 7400, Fax 563 272 7347, www.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 8, 2023 Commission File Numbe

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 8, 2023 Commission File Number: 1-14225 HNI Corporation Iowa 42-0617510 (State of incorporation) (IRS Employer Identification No.) 600 East Second Street P. O. Box 1109 Muscatine,

HNI Corporation 600 East Second Street, Muscatine, Iowa 52761, Tel 563 272 7400, Fax 563 272 7347, www.hnicorp.com

HNI Corporation 600 East Second Street, Muscatine, Iowa 52761, Tel 563 272 7400, Fax 563 272 7347, www.

From: Lorenger, Jeff (HNI Corp) To: Workplace Furnishings and Corporate Subject: Stronger Together Newsletter #3 Date: Thursday, May 4, 2023 1:07:34 PM Attachments: Stronger Together Newsletter #3.pdf A Message to Members, Welcome to the third editio

Filed by HNI Corporation (Commission File No.: 001-14225) Pursuant to Rule 425 of the Securities Act of 1933 Subject Company: Kimball International, Inc. (Commission File No.: 000-03279) [The following information was provided to employees of HNI Corporation on May 4, 2023] From: Lorenger, Jeff (HNI Corp) To: Workplace Furnishings and Corporate Subject: Stronger Together Newsletter #3 Date: Thursd

LETTER TO SHAREHOLDERS

TABLE OF CONTENTS Filed Pursuant to Rule 424(b)(3) File No.: 333-271298 LETTER TO SHAREHOLDERS   To the shareholders of Kimball International, Inc. TRANSACTION PROPOSED — YOUR VOTE IS VERY IMPORTANT Dear Shareholders: On March 7, 2023, HNI Corporation (which we refer to as “HNI”), Ozark Merger Sub, Inc., a wholly owned subsidiary of HNI (which we refer to as “Merger Sub”), and Kimball Internationa

HNI CORPORATION April 25, 2023

HNI CORPORATION April 25, 2023 VIA EDGAR Division of Corporation Finance Office of Manufacturing U.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 21, 2023 (April 20, 2023) H

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 21, 2023 (April 20, 2023) HNI Corporation (Exact Name of Registrant as Specified in its Charter) Iowa 001-14225 42-0617510 (State or other jurisdiction of incorporation or organ

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 21, 2023 (April 20, 2023) H

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 21, 2023 (April 20, 2023) HNI Corporation (Exact Name of Registrant as Specified in its Charter) Iowa 001-14225 42-0617510 (State or other jurisdiction of incorporation or organ

From: Lorenger, Jeff (HNI Corp) To: Workplace Furnishings and Corporate Subject: Stronger Together Newsletter #2 Date: Thursday, April 20, 2023 1:17:19 PM Attachments: HNI KII Stronger Together Newsletter #2.pdf A Message to Members, Welcome to the s

Filed by HNI Corporation (Commission File No.: 001-14225) Pursuant to Rule 425 of the Securities Act of 1933 Subject Company: Kimball International, Inc. (Commission File No.: 000-03279) [The following information was provided to employees of HNI Corporation on April 20, 2023] From: Lorenger, Jeff (HNI Corp) To: Workplace Furnishings and Corporate Subject: Stronger Together Newsletter #2 Date: Thu

As filed with the Securities and Exchange Commission on April 19, 2023

TABLE OF CONTENTS As filed with the Securities and Exchange Commission on April 19, 2023 Registration No.

Calculation of Filing Fee Tables Form S-4 (Form Type) HNI Corporation (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities

Exhibit 107 Calculation of Filing Fee Tables Form S-4 (Form Type) HNI Corporation (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Share Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Carry Forward Form Type Carry Forward File Number Carry Forward Initial effective date Filing Fee Previously Paid In Connection with Unsold Securities to be Carried Forward Newly Registered Securities Fees to Be Paid Common shares Common Shares, $1.

CONSENT OF J.P. MORGAN SECURITIES LLC

Exhibit 99.2 CONSENT OF J.P. MORGAN SECURITIES LLC We hereby consent to (i) the use of our opinion letter dated March 7, 2023 to the Board of Directors of Kimball International, Inc. (the “Company”) included in Annex C to the proxy statement/prospectus, which forms a part of Amendment No. 1 to the registration statement on Form S-4 relating to the proposed merger of the Company and HNI Corporation

CONSENT OF J.P. MORGAN SECURITIES LLC

Exhibit 99.2 CONSENT OF J.P. MORGAN SECURITIES LLC We hereby consent to (i) the use of our opinion letter dated March 7, 2023 to the Board of Directors of Kimball International, Inc. (the “Company”) included in Annex C to the proxy statement/prospectus, which forms a part of a registration statement on Form S-4 relating to the proposed merger of the Company and HNI Corporation, and (ii) the refere

As filed with the Securities and Exchange Commission on April 17, 2023

S-4 1 ny20008428x1s4.htm S4 TABLE OF CONTENTS As filed with the Securities and Exchange Commission on April 17, 2023 Registration No. 333-    SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM S-4 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 HNI CORPORATION (Exact Name of Registrant as Specified in Its Charter) Iowa 001-14225 42-0617510 (State or Other Jurisdiction of Incorp

Calculation of Filing Fee Tables Form S-4 (Form Type) HNI Corporation (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities

Exhibit 107 Calculation of Filing Fee Tables Form S-4 (Form Type) HNI Corporation (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Share Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Carry Forward Form Type Carry Forward File Number Carry Forward Initial effective date Filing Fee Previously Paid In Connection with Unsold Securities to be Carried Forward Newly Registered Securities Fees to Be Paid Common shares Common Shares, $1.

From: Lorenger, Jeff (HNI Corp) To: Workplace Furnishings and Corporate Subject: Stronger Together Newsletter Date: Thursday, April 6, 2023 2:38:22 PM Attachments: HNI KII Stronger Together Newsletter.pdf A Message to Members, It has been a month sin

Filed by HNI Corporation (Commission File No.: 001-14225) Pursuant to Rule 425 of the Securities Act of 1933 Subject Company: Kimball International, Inc. (Commission File No.: 000-03279) [The following information was provided to employees of HNI Corporation on April 6, 2023] From: Lorenger, Jeff (HNI Corp) To: Workplace Furnishings and Corporate Subject: Stronger Together Newsletter Date: Thursda

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 4, 2023 (March 31, 2023) HN

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 4, 2023 (March 31, 2023) HNI Corporation (Exact Name of Registrant as Specified in its Charter) Iowa 001-14225 42-0617510 (State or other jurisdiction of incorporation or organi

Term Loan Credit Agreement, dated as of March 31, 2023, among HNI Corporation, as borrower, certain domestic subsidiaries of HNI Corporation, as guarantors, certain lenders and Wells Fargo Bank, National Association, as administrative agent (incorporated by reference to Exhibit 10.1 to the Registrant’s Current Report on Form 8-K filed April 4, 2023)

termloancreditagreement 15890262v6 Execution Version Published CUSIP Number: [] Term Loan CUSIP Number: [] #96707798v6 TERM LOAN CREDIT AGREEMENT Dated as of March 31, 2023 among HNI CORPORATION, as Borrower, CERTAIN DOMESTIC SUBSIDIARIES OF THE BORROWER FROM TIME TO TIME PARTY HERETO, as Guarantors THE LENDERS PARTIES HERETO and WELLS FARGO BANK, NATIONAL ASSOCIATION, as Administrative Agent, and U.

HNI CORPORATION ANNUAL MEETING OF SHAREHOLDERS Wednesday, May 17, 2023 10:30 a.m. (CDT) Virtual Only Important Notice Regarding the Availability of Proxy Materials for the Shareholder Meeting to be Held on May 17, 2023. In order to attend the annual

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ý Filed by a Party other than the Registrant ¨ Check the appropriate box: ¨ Preliminary Proxy Statement ¨ Confidential, for Use of Commission Only (as permitted by Rule 14a-6(e)(2))

Page | 1

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ý Filed by a Party other than the Registrant ¨ Check the appropriate box: ¨ Preliminary Proxy Statement ¨ Confidential, for Use of Commission Only (as permitted by Rule 14a-6(e)(2))

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 16, 2023 (March 14, 2023) H

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 16, 2023 (March 14, 2023) HNI Corporation (Exact Name of Registrant as Specified in its Charter) Iowa 001-14225 42-0617510 (State or other jurisdiction of incorporation or organ

First Amendment to the Fourth Amended and Restated Credit Agreement, dated as of March 14, 2023, among HNI Corporation, as borrower, certain domestic subsidiaries of HNI Corporation, as guarantors, certain lenders and Wells Fargo Bank, National Association, as administrative agent (incorporated by reference to Exhibit 10.1 to the Registrant’s Current Report on Form 8-K filed March 16, 2023)

Execution Version Exhibit 10.1 FIRST AMENDMENT TO FOURTH AMENDED AND RESTATED CREDIT AGREEMENT This FIRST AMENDMENT TO FOURTH AMENDED AND RESTATED CREDIT AGREEMENT (this “Amendment”), dated as of March 14, 2023, is entered into by and among HNI CORPORATION, an Iowa corporation (the “Borrower”), the Guarantors (as hereinafter defined) party hereto, the Lenders (as hereinafter defined) party hereto,

Agreement and Plan of Merger, by and among HNI Corporation, Ozark Merger Sub, Inc. and Kimball International, Inc., dated as of March 7, 2023 (incorporated by reference to Exhibit 2.1 to the Registrant’s Current Report on Form 8-K filed March 10, 2023)

mergeragreement Execution Version #96592628v24 AGREEMENT AND PLAN OF MERGER by and among KIMBALL INTERNATIONAL, INC.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 10, 2023 (March 7, 2023) HN

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 10, 2023 (March 7, 2023) HNI Corporation (Exact Name of Registrant as Specified in its Charter) Iowa 001-14225 42-0617510 (State or other jurisdiction of incorporation or organi

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 10, 2023 (March 7, 2023) HN

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 10, 2023 (March 7, 2023) HNI Corporation (Exact Name of Registrant as Specified in its Charter) Iowa 001-14225 42-0617510 (State or other jurisdiction of incorporation or organi

Agreement and Plan of Merger, by and among HNI Corporation, Ozark Merger Sub, Inc. and Kimball International, Inc., dated as of March 7, 2023.

mergeragreement Execution Version #96592628v24 AGREEMENT AND PLAN OF MERGER by and among KIMBALL INTERNATIONAL, INC.

Company Overview: • For over 75 years, HNI has been improving where people live, work, and gather • Founded in 1947 in Muscatine, Iowa, HNI is a leading manufacturer of workplace furnishings and residential building products • 20 industry-leading glo

Filed by HNI Corporation (Commission File No.: 001-14225) Pursuant to Rule 425 of the Securities Act of 1933 Subject Company: Kimball International, Inc. (Commission File No.: 000-03279) [The following information was provided to employees of Kimball International on March 9, 2023] Company Overview: • For over 75 years, HNI has been improving where people live, work, and gather • Founded in 1947 i

To: Kimball International Employees

Filed by HNI Corporation (Commission File No.: 001-14225) Pursuant to Rule 425 of the Securities Act of 1933 Subject Company: Kimball International, Inc. (Commission File No.: 000-03279) [The following communication was sent to employees of Kimball International on March 9, 2023] To: Kimball International Employees From: Jeff Lorenger, HNI Chairman, President and Chief Executive Officer Date: Marc

Confidential March 8, 2023 1 HNI to Acquire Kimball International Investor Briefing EXHIBIT 99.2 Forward-Looking Statement 2 This communication contains “forward-looking statements” within the meaning of Section 27A of the Securities Act of 1933, as

hniinvestorpresentation3 Confidential March 8, 2023 1 HNI to Acquire Kimball International Investor Briefing EXHIBIT 99.

Date: March 8, 2023 From: Jeff Lorenger, HNI Chairman, President and Chief Executive Officer A Message to Members Today marks an exciting milestone in HNI’s 76-year history. A few minutes ago, we announced that HNI has entered into an agreement to ac

Filed by HNI Corporation (Commission File No.: 001-14225) Pursuant to Rule 425 of the Securities Act of 1933 Subject Company: Kimball International, Inc. (Commission File No.: 000-03279) [The following letter was sent to HNI Members on March 8, 2023] Date: March 8, 2023 From: Jeff Lorenger, HNI Chairman, President and Chief Executive Officer A Message to Members Today marks an exciting milestone i

[The following was posted to social media on March 8, 2023]

Filed by HNI Corporation (Commission File No.: 001-14225) Pursuant to Rule 425 of the Securities Act of 1933 Subject Company: Kimball International, Inc. (Commission File No.: 000-03279) [The following was posted to social media on March 8, 2023]

HNI Corporation to Acquire Kimball International Highly Complementary Portfolio Broadens Product Offering and Expands Reach in High-Growth Markets Accelerates HNI’s Growth in Workplace Furnishings Segment Brings Together Two Great Companies with Simi

EXHIBIT 99.1 HNI Corporation to Acquire Kimball International Highly Complementary Portfolio Broadens Product Offering and Expands Reach in High-Growth Markets Accelerates HNI’s Growth in Workplace Furnishings Segment Brings Together Two Great Companies with Similar Cultures and Values HNI to Host Conference Call and Webcast Today, March 8, at 7:30 AM CT / 8:30 AM ET MUSCATINE, Iowa and JASPER, In

2210 Second Avenue ǀ Muscatine, Iowa 52761 ǀ allsteeloffice.com Date: March 8, 2023 From: Jason Hagedorn, President, Allsteel Company Today Allsteel’s parent company, HNI Corporation, announced its intent to acquire Kimball International. I wanted to

Filed by HNI Corporation (Commission File No.: 001-14225) Pursuant to Rule 425 of the Securities Act of 1933 Subject Company: Kimball International, Inc. (Commission File No.: 000-03279) [The following letter was sent to Allsteel Dealers on March 8, 2023] 2210 Second Avenue ǀ Muscatine, Iowa 52761 ǀ allsteeloffice.com Date: March 8, 2023 From: Jason Hagedorn, President, Allsteel Company Today Alls

Headquarters: Jasper, Indiana 6 manufacturing locations in Indiana, 2 manufacturing locations in Kentucky, 2 warehouse locations in Indiana, 15 showroom locations across the U.S. and additional office locations in Atlanta, NYC, China, Vietnam and Mex

Filed by HNI Corporation (Commission File No.: 001-14225) Pursuant to Rule 425 of the Securities Act of 1933 Subject Company: Kimball International, Inc. (Commission File No.: 000-03279) [The following fact sheet was sent to HNI Members on March 8, 2023] Headquarters: Jasper, Indiana 6 manufacturing locations in Indiana, 2 manufacturing locations in Kentucky, 2 warehouse locations in Indiana, 15 s

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 8, 2023 (March 7, 2023) HNI

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 8, 2023 (March 7, 2023) HNI Corporation (Exact Name of Registrant as Specified in its Charter) Iowa 001-14225 42-0617510 (State or other jurisdiction of incorporation or organiz

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 8, 2023 (March 7, 2023) HNI

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 8, 2023 (March 7, 2023) HNI Corporation (Exact Name of Registrant as Specified in its Charter) Iowa 001-14225 42-0617510 (State or other jurisdiction of incorporation or organiz

HNI Corporation to Acquire Kimball International Highly Complementary Portfolio Broadens Product Offering and Expands Reach in High-Growth Markets Accelerates HNI’s Growth in Workplace Furnishings Segment Brings Together Two Great Companies with Simi

EX-99.1 2 pressrelease3723final.htm EX-99.1 EXHIBIT 99.1 HNI Corporation to Acquire Kimball International Highly Complementary Portfolio Broadens Product Offering and Expands Reach in High-Growth Markets Accelerates HNI’s Growth in Workplace Furnishings Segment Brings Together Two Great Companies with Similar Cultures and Values HNI to Host Conference Call and Webcast Today, March 8, at 7:30 AM CT

1 Leader FAQ 1. Why is HNI acquiring Kimball International? • This is an exciting step in HNI’s history and will combine two highly complementary companies with strong brand positions and product portfolios. • We are creating a robust platform for gr

Filed by HNI Corporation (Commission File No.: 001-14225) Pursuant to Rule 425 of the Securities Act of 1933 Subject Company: Kimball International, Inc. (Commission File No.: 000-03279) [The following FAQ was sent to members of HNI Corporation on March 8, 2023] 1 Leader FAQ 1. Why is HNI acquiring Kimball International? • This is an exciting step in HNI’s history and will combine two highly compl

Date: March 8, 2023 From: Jeff Lorenger, HNI Chairman, President and Chief Executive Officer Dear HNI Stakeholder, We have some exciting news to share. Today, we announced an agreement to acquire Kimball International, a leading commercial furnishing

Filed by HNI Corporation (Commission File No.: 001-14225) Pursuant to Rule 425 of the Securities Act of 1933 Subject Company: Kimball International, Inc. (Commission File No.: 000-03279) [The following letter was sent to HNI Stakeholders on March 8, 2023] Date: March 8, 2023 From: Jeff Lorenger, HNI Chairman, President and Chief Executive Officer Dear HNI Stakeholder, We have some exciting news to

Date: March 8, 2023 From: Brandon Bullock, President, The HON Company Dear [Insert Name of Dealer], Today the HON Company's parent, HNI Corporation, announced its intent to acquire Kimball International. I wanted to personally share with you why I am

Filed by HNI Corporation (Commission File No.: 001-14225) Pursuant to Rule 425 of the Securities Act of 1933 Subject Company: Kimball International, Inc. (Commission File No.: 000-03279) [The following letter was sent to HON Dealers on March 8, 2023] Date: March 8, 2023 From: Brandon Bullock, President, The HON Company Dear [Insert Name of Dealer], Today the HON Company's parent, HNI Corporation,

Confidential March 8, 2023 1 HNI to Acquire Kimball International Investor Briefing EXHIBIT 99.2 Forward-Looking Statement 2 This communication contains “forward-looking statements” within the meaning of Section 27A of the Securities Act of 1933, as

hniinvestorpresentation3 Confidential March 8, 2023 1 HNI to Acquire Kimball International Investor Briefing EXHIBIT 99.

Corrected Transcript 1-877-FACTSET www.callstreet.com Total Pages: 15 Copyright © 2001-2023 FactSet CallStreet, LLC 08-Mar-2023 HNI Corp. (HNI) Acquisition of Kimball International, Inc. by HNI Corporation Call HNI Corp. (HNI) Acquisition of Kimball

Filed by HNI Corporation (Commission File No.: 001-14225) Pursuant to Rule 425 of the Securities Act of 1933 Subject Company: Kimball International, Inc. (Commission File No.: 000-03279) [The following is a transcript of the joint conference call held by HNI Corporation and Kimball International, Inc., on March 8, 2023] Corrected Transcript 1-877-FACTSET www.callstreet.com Total Pages: 15 Copyrigh

Subsidiaries of the Registrant

EXHIBIT 21 SUBSIDIARIES OF THE REGISTRANT Subsidiary Country/State of Incorporation Doing Business As Allsteel LLC Illinois Allsteel LLC; HNI Global; HNI One; HNI One - Global Accounts; One from HNI; HNI Canada Design Holdings Inc.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2022 OR ☐ TRANSITION REPORT PURSUANT TO SE

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2022 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number: 1-14225 HNI Corporation Iowa 42-0617510 (State of Incorporation) (I.R

HNI Corporation 600 East Second Street, Muscatine, Iowa 52761, Tel 563 272 7400, Fax 563 272 7347, www.hnicorp.com

HNI Corporation 600 East Second Street, Muscatine, Iowa 52761, Tel 563 272 7400, Fax 563 272 7347, www.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 23, 2023 Commission File

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 23, 2023 Commission File Number: 1-14225 HNI Corporation Iowa 42-0617510 (State of incorporation) (IRS Employer Identification No.) 600 East Second Street P. O. Box 1109 Musc

HNI / HNI Corp / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SC 13G/A 1 tv01087-hnicorp.htm SCHEDULE 13G/A SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 12)* Name of issuer: HNI Corp. Title of Class of Securities: Common Stock CUSIP Number: 404251100 Date of Event Which Requires Filing of this Statement: December 30, 2022 Check the appropriate box to designate the rule pursua

PART I. FINANCIAL INFORMATION

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended October 1, 2022 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number: 1-14225 HNI Corporation Iowa 42-0617510 (State of Incorporation

Separation Agreement between HNI Corporation and Kurt Tjaden+

? HNI Corporatioo 600 East Second Sttee? Muscatine, Iowa 52761. Tel 563 272 7400. Fax 563 272 73?7 www.hnicoq,.com September 9, 2022 Dear Kurt Your retirement as Senior Vice President and President, HNI International will be effective September 30, 2022. This letter explains the Separation Pay that will be provided to you should you choose to sign this letter agreement ("Agreement"), which include

HNI Corporation 600 East Second Street, Muscatine, Iowa 52761, Tel 563 272 7400, Fax 563 272 7347, www.hnicorp.com

HNI Corporation 600 East Second Street, Muscatine, Iowa 52761, Tel 563 272 7400, Fax 563 272 7347, www.

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 24, 2022 Commission File Number: 1-14225 HNI Corporation Iowa 42-0617510 (State of incorporation) (IRS Employer Identification No.) 600 East Second Street P. O. Box 1109 Musca

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 13, 2022 Commission File Number: 1-14225 HNI Corporation Iowa 42-0617510 (State of incorporation) (IRS Employer Identification No.) 600 East Second Street P. O. Box 1109 Mus

HNI CORPORATION ELECTS NEW DIRECTOR

News Release For Information Contact: Marshall H. Bridges, Senior Vice President and Chief Financial Officer (563) 272-7400 Matthew S. McCall, Vice President, Investor Relations and Corporate Development (563) 275-8898 HNI CORPORATION ELECTS NEW DIRECTOR MUSCATINE, Iowa (September 15, 2022) ? HNI Corporation (NYSE: HNI) announced the election of Patrick D. Hallinan to the Corporation?s Board of Di

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 12, 2022 Commission File Number: 1-14225 HNI Corporation Iowa 42-0617510 (State of incorporation) (IRS Employer Identification No.) 600 East Second Street P. O. Box 1109 Muscat

PART I. FINANCIAL INFORMATION

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended July 2, 2022 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number: 1-14225 HNI Corporation Iowa 42-0617510 (State of Incorporation) (

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 28, 2022 Commission File Number: 1-14225 HNI Corporation Iowa 42-0617510 (State of incorporation) (IRS Employer Identification No.) 600 East Second Street P. O. Box 1109 Muscatin

HNI Corporation 600 East Second Street, Muscatine, Iowa 52761, Tel 563 272 7400, Fax 563 272 7347, www.hnicorp.com

HNI Corporation 600 East Second Street, Muscatine, Iowa 52761, Tel 563 272 7400, Fax 563 272 7347, www.

News Release For Information Contact: Marshall H. Bridges, Senior Vice President and Chief Financial Officer (563) 272-7400 Matthew S. McCall, Vice President, Investor Relations and Corporate Development (563) 275-8898 HNI CORPORATION ANNOUNCES SALE

News Release For Information Contact: Marshall H. Bridges, Senior Vice President and Chief Financial Officer (563) 272-7400 Matthew S. McCall, Vice President, Investor Relations and Corporate Development (563) 275-8898 HNI CORPORATION ANNOUNCES SALE OF LAMEX OFFICE FURNITURE BUSINESS MUSCATINE, Iowa (July 20, 2022) ? HNI Corporation (NYSE: HNI) today announced it has completed the sale of its Chin

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K/A (Amendment No. 1) CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 14, 2022 Commission File Number: 1-14225 HNI Corporation Iowa 42-0617510 (State of incorporation) (IRS Employer Identification No.) 600 East Second Street P.

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 20, 2022 Commission File Number: 1-14225 HNI Corporation Iowa 42-0617510 (State of incorporation) (IRS Employer Identification No.) 600 East Second Street P. O. Box 1109 Muscatin

Fourth Amended and Restated Credit Agreement, dated as of June 14, 2022, by and among HNI Corporation, as borrower, certain domestic subsidiaries of HNI Corporation, as guarantors, certain lenders and Wells Fargo Bank, National Association, as administrative agent

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K x ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2021 OR o TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number: 1-14225 A. Full title of the plan and the address of the plan, if different from

Fourth Amended and Restated Credit Agreement, dated as of June 14, 2022, by and among HNI Corporation, as borrower, certain domestic subsidiaries of HNI Corporation, as guarantors, certain lenders and Wells Fargo Bank, National Association, as administrative agent (incorporated by reference to Exhibit 10.1 to the Registrant’s Current Report on Form 8-K filed June 17, 2022)

Execution Version Published CUSIP Number: Revolving Credit CUSIP Number: DMSLIBRARY01\18464\015066\31961018.

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 14, 2022 Commission File Number: 1-14225 HNI Corporation Iowa 42-0617510 (State of incorporation) (IRS Employer Identification No.) 600 East Second Street P. O. Box 1109 Muscatin

Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 26, 2022 Commission File Number: 1-14225 HNI Corporation Iowa 42-0617510 (State of incorporation) (IRS Employer Identification No.) 600 East Second Street P. O. Box 1109 Muscatine

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report HNI Corporation (Exact Name of Registrant as Specified in its Charter)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report HNI Corporation (Exact Name of Registrant as Specified in its Charter) Iowa 1-14225 42-0617510 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.) 600 East Second Street, P.O. Box 1109, Muscatine, Iowa 52761-0071 (Address of Principal E

HNI Corporation Conflict Minerals Report For the Year Ended December 31, 2021

EX-1.01 2 ex1012021formsdfinal.htm EX-1.01 EXHIBIT 1.01 HNI Corporation Conflict Minerals Report For the Year Ended December 31, 2021 1.Conflict Minerals Rule Overview This conflict minerals report of HNI Corporation (the Corporation, we or our) for the year ended December 31, 2021 is presented to comply with Rule 13p-1 under the Securities Exchange Act of 1934 (the Rule). The Rule imposes reporti

Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 20, 2022 Commission File Number: 1-14225 HNI Corporation Iowa 42-0617510 (State of incorporation) (IRS Employer Identification No.) 600 East Second Street P. O. Box 1109 Muscatine

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 17, 2022 Commission File Number: 1-14225 HNI Corporation Iowa 42-0617510 (State of incorporation) (IRS Employer Identification No.) 600 East Second Street P. O. Box 1109 Muscatine

PART I. FINANCIAL INFORMATION

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended April 2, 2022 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number: 1-14225 HNI Corporation Iowa 42-0617510 (State of Incorporation)

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 28, 2022 Commission File Number: 1-14225 HNI Corporation Iowa 42-0617510 (State of incorporation) (IRS Employer Identification No.) 600 East Second Street P. O. Box 1109 Muscati

HNI Corporation 600 East Second Street, Muscatine, Iowa 52761, Tel 563 272 7400, Fax 563 272 7347, www.hnicorp.com

HNI Corporation 600 East Second Street, Muscatine, Iowa 52761, Tel 563 272 7400, Fax 563 272 7347, www.

2022 PROXY STATEMENT HNI Corporation A Letter to our Shareholders Dear Shareholders: In 2022, we celebrate the 75th anniversary of HNI Corporation. Our founders began with an idea to start a company where everyone would be treated with equity and res

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ? Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confidential, for Use of Commission Only (as permitted by Rule 14a-6(e)(2))

HNI CORPORATION ANNUAL MEETING OF SHAREHOLDERS Thursday, May 26, 2022 10:30 a.m. (CDT) Virtual Only Important Notice Regarding the Availability of Proxy Materials for the Shareholder Meeting to be Held on May 26, 2022. In order to attend the annual m

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ? Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confidential, for Use of Commission Only (as permitted by Rule 14a-6(e)(2))

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended January 1, 2022 OR ☐ TRANSITION REPORT PURSUANT TO SECT

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ? ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended January 1, 2022 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number: 1-14225 HNI Corporation Iowa 42-0617510 (State of Incorporation) (I.R.S

Subsidiaries of the Registrant

EXHIBIT 21 SUBSIDIARIES OF THE REGISTRANT Subsidiary Country/State of Incorporation Doing Business As Allsteel Inc.

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 28, 2022 Commission File Number: 1-14225 HNI Corporation Iowa 42-0617510 (State of incorporation) (IRS Employer Identification No.) 600 East Second Street P. O. Box 1109 Musc

HNI Corporation 600 East Second Street, Muscatine, Iowa 52761, Tel 563 272 7400, Fax 563 272 7347, www.hnicorp.com

HNI Corporation 600 East Second Street, Muscatine, Iowa 52761, Tel 563 272 7400, Fax 563 272 7347, www.

HNI / HNI Corp / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 11)* Name of issuer: HNI Corp. Title of Class of Securities: Common Stock CUSIP Number: 404251100 Date of Event Which Requires Filing of this Statement: December 31, 2021 Check the appropriate box to designate the rule pursuant to which this Schedule is filed: ??Rule 13d

PART I. FINANCIAL INFORMATION

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended October 2, 2021 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number: 1-14225 HNI Corporation Iowa 42-0617510 (State of Incorporation

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 25, 2021 Commission File Number: 1-14225 HNI Corporation Iowa 42-0617510 (State of incorporation) (IRS Employer No.) 600 East Second Street P. O. Box 1109 Muscatine, Iowa 5276

HNI Corporation 600 East Second Street, Muscatine, Iowa 52761, Tel 563 272 7400, Fax 563 272 7347, www.hnicorp.com

HNI Corporation 600 East Second Street, Muscatine, Iowa 52761, Tel 563 272 7400, Fax 563 272 7347, www.

HNI CORPORATION PROVIDES BUSINESS UPDATE

News Release For Information Contact: Marshall H. Bridges, Senior Vice President and Chief Financial Officer (563) 272-7400 Matthew S. McCall, Vice President, Investor Relations and Corporate Development (563) 275-8898 HNI CORPORATION PROVIDES BUSINESS UPDATE MUSCATINE, Iowa (September 23, 2021) ? HNI Corporation (NYSE: HNI) today provided an update on recent business conditions. Specifically, the

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 23, 2021 Commission File Number: 1-14225 HNI Corporation Iowa 42-0617510 (State of incorporation) (IRS Employer No.) 600 East Second Street P. O. Box 1109 Muscatine, Iowa 52

Form of HNI Corporation 2021 Stock-Based Compensation Plan Restricted Stock Unit Award Agreement (incorporated by reference to Exhibit 10.2 to the Registrant’s Quarterly Report on Form 10-Q for the quarter ended July 3, 2021)*

EXHIBIT 10.2 HNI Corporation 2021 Stock-Based Compensation Plan: Restricted Stock Unit Award Agreement Congratulations on your selection as a Participant who will receive Restricted Stock Units under the HNI Corporation 2021 Stock-Based Compensation Plan (the ?Plan?). This Award Agreement provides a brief summary of your rights under the Plan. Capitalized terms found but not defined in this Award

Form of HNI Corporation 2021 Stock-Based Compensation Plan Restricted Stock Unit Award Agreement (CEO) (incorporated by reference to Exhibit 10.3 to the Registrant’s Quarterly Report on Form 10-Q for the quarter ended July 3, 2021)*

EXHIBIT 10.3 HNI Corporation 2021 Stock-Based Compensation Plan: Restricted Stock Unit Award Agreement Congratulations on your selection as a Participant who will receive Restricted Stock Units under the HNI Corporation 2021 Stock-Based Compensation Plan (the ?Plan?). This Award Agreement provides a brief summary of your rights under the Plan. Capitalized terms found but not defined in this Award

Form of HNI Corporation 2021 Stock-Based Compensation Performance Share Unit Award Agreement (incorporated by reference to Exhibit 10.4 to the Registrant’s Quarterly Report on Form 10-Q for the quarter ended July 3, 2021)*

EXHIBIT 10.4 HNI Corporation 2021 Stock-Based Compensation Plan: Performance Share Unit Award Agreement Congratulations on your selection as a Participant who will receive Performance Share Units under the HNI Corporation 2021 Stock-Based Compensation Plan (the ?Plan?). This Award Agreement provides a brief summary of your rights under the Plan. Capitalized terms found but not defined in this Awar

PART I. FINANCIAL INFORMATION

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended July 3, 2021 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number: 1-14225 HNI Corporation Iowa 42-0617510 (State of Incorporation) (

HNI Corporation 600 East Second Street, Muscatine, Iowa 52761, Tel 563 272 7400, Fax 563 272 7347, www.hnicorp.com

HNI Corporation 600 East Second Street, Muscatine, Iowa 52761, Tel 563 272 7400, Fax 563 272 7347, www.

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 29, 2021 Commission File Number: 1-14225 HNI Corporation Iowa 42-0617510 (State of incorporation) (IRS Employer No.) 600 East Second Street P. O. Box 1109 Muscatine, Iowa 52761-0

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K x ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2020 OR o TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number: 1-14225 A. Full title of the plan and the address of the plan, if different from

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits, Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 24, 2021 HNI Corporation (Exact name of registrant as specified in charter) Iowa 1-14225 42-0617510 (State or other jurisdiction of incorporation) (Commission File Number) (IRS Em

Conflict Minerals Report required by Items 1.01 and 1.02 of this Form.

EXHIBIT 1.01 HNI Corporation Conflict Minerals Report For the Year Ended December 31, 2020 1.Conflict Minerals Rule Overview This conflict minerals report of HNI Corporation (the Corporation, we or our) for the year ended December 31, 2020 is presented to comply with Rule 13p-1 under the Securities Exchange Act of 1934 (the Rule). The Rule imposes reporting obligations on Securities and Exchange C

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report HNI Corporation (Exact Name of Registrant as Specified in its Charter)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report HNI Corporation (Exact Name of Registrant as Specified in its Charter) Iowa 1-14225 42-0617510 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.) 600 East Second Street, P.O. Box 1109, Muscatine, Iowa 52761-0071 (Address of Principal E

As filed with the Securities and Exchange Commission on May 25, 2021

As filed with the Securities and Exchange Commission on May 25, 2021 Registration No.

Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 10, 2021 HNI Corporation (Exact name of registrant as specified in charter) Iowa 1-14225 42-0617510 (State or other jurisdiction of incorporation) (Commission File Number) (IRS Em

Amended and Restated By-laws of HNI Corporation, effective May 10, 2021 (incorporated by reference to Exhibit 3.1 to the Registrant’s Current Report on Form 8-K filed May 11, 2021)

AMENDED AND RESTATED BY-LAWS OF HNI CORPORATION Adopted on September 7, 1960. Amended and Restated on May 10, 2021 ARTICLE 1. OFFICES AND PLACES OF BUSINESS Section 1.01. Principal Place of Business. The Corporation?s principal place of business will be located in the place, in or out of the State of Iowa, fixed by or under authority granted by the Board of Directors from time to time. Section 1.0

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended April 3, 2021 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number: 1-14225 HNI Corporation Iowa 42-0617510 (State of Incorporation)

- DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ? Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confidential, for Use of Commission Only (as permitted by Rule 14a-6(e)(2))

HNI Corporation 600 East Second Street, Muscatine, Iowa 52761, Tel 563 272 7400, Fax 563 272 7347, www.hnicorp.com

EX-99.1 2 hni-ex991q12021.htm EX-99.1 HNI Corporation 600 East Second Street, Muscatine, Iowa 52761, Tel 563 272 7400, Fax 563 272 7347, www.hnicorp.com News Release For Information Contact: Marshall H. Bridges, Senior Vice President and Chief Financial Officer (563) 272-7400 Matthew S. McCall, Vice President, Investor Relations and Corporate Development (563) 275-8898 HNI CORPORATION REPORTS EARN

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 28, 2021 Commission File Number: 1-14225 HNI Corporation Iowa 42-0617510 (State of incorporation) (IRS Employer No.) 600 East Second Street P. O. Box 1109 Muscatine, Iowa 52761-

HNI Corporation 2021 Stock-Based Compensation Plan (incorporated by reference from Appendix A to the Corporation's Proxy Statement filed on April 12, 2021)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ? Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confidential, for Use of Commission Only (as permitted by Rule 14a-6(e)(2))

- DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ? Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confidential, for Use of Commission Only (as permitted by Rule 14a-6(e)(2))

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 10)*

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 10)* Name of issuer: HNI Corp. Title of Class of Securities: Common Stock CUSIP Number: 404251100 Date of Event Which Requires Filing of this Statement: February 26, 2021 Check the appropriate box to designate the rule pursuant to which this Schedule is filed: ??Rule 13d

Subsidiaries of the Registrant

EXHIBIT 21 SUBSIDIARIES OF THE REGISTRANT Subsidiary Country/State of Incorporation Doing Business As Allsteel Inc.

Amended form of HNI Corporation 2017 Stock-Based Compensation Plan Restricted Stock Unit Award Agreement (incorporated by reference to Exhibit 10.24 to the Registrant’s Annual Report on Form 10-K for the year ended January 2, 2021*

Exhibit 10.24 HNI Corporation 2017 Stock-Based Compensation Plan: Restricted Stock Unit Award Agreement Congratulations on your selection as a Participant who will receive a special grant of Restricted Stock Units under the HNI Corporation 2017 Stock-Based Compensation Plan, which is intended as a one-time, special incentive for your efforts and dedication to the Corporation throughout the COVID-1

Annual Report - 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ? ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended January 2, 2021 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number: 1-14225 HNI Corporation Iowa 42-0617510 (State of Incorporation) (I.R.S

HNI Corporation 600 East Second Street, Muscatine, Iowa 52761, Tel 563 272 7400, Fax 563 272 7347, www.hnicorp.com

HNI Corporation 600 East Second Street, Muscatine, Iowa 52761, Tel 563 272 7400, Fax 563 272 7347, www.

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 1, 2021 Commission File Number: 1-14225 HNI Corporation Iowa 42-0617510 (State of incorporation) (IRS Employer No.) 600 East Second Street P. O. Box 1109 Muscatine, Iowa 52761-0

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 9)*

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 9)* Name of issuer: HNI Corp. Title of Class of Securities: Common Stock CUSIP Number: 404251100 Date of Event Which Requires Filing of this Statement: December 31, 2020 Check the appropriate box to designate the rule pursuant to which this Schedule is filed: ☒ Rule 13d-

HNI Corporation 600 East Second Street, Muscatine, Iowa 52761, Tel 563 272 7400, Fax 563 272 7347, www.hnicorp.com

HNI Corporation 600 East Second Street, Muscatine, Iowa 52761, Tel 563 272 7400, Fax 563 272 7347, www.

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 4, 2021 HNI Corporation (Exact name of registrant as specified in charter) Iowa 1-14225 42-0617510 (State or other jurisdiction of incorporation) (Commission File Number) (IRS

Financial Statements and Exhibits, Other Events - 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 1, 2020 HNI Corporation (Exact name of registrant as specified in charter) Iowa 1-14225 42-0617510 (State or other jurisdiction of incorporation) (Commission File Number) (IR

HNI Corporation 600 East Second Street, Muscatine, Iowa 52761, Tel 563 272 7400, Fax 563 272 7217, www.hnicorp.com

HNI Corporation 600 East Second Street, Muscatine, Iowa 52761, Tel 563 272 7400, Fax 563 272 7217, www.

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 26, 2020 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number: 1-14225 HNI Corporation Iowa 42-0617510 (State of Incorporat

Financial Statements and Exhibits, Results of Operations and Financial Condition - 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 19, 2020 Commission File Number: 1-14225 HNI Corporation Iowa 42-0617510 (State of incorporation) (IRS Employer No.) 600 East Second Street P. O. Box 1109 Muscatine, Iowa 5276

HNI Corporation 600 East Second Street, Muscatine, Iowa 52761, Tel 563 272 7400, Fax 563 272 7347, www.hnicorp.com

HNI Corporation 600 East Second Street, Muscatine, Iowa 52761, Tel 563 272 7400, Fax 563 272 7347, www.

Quarterly Report - 10-Q - Q2 2020

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 27, 2020 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number: 1-14225 HNI Corporation Iowa 42-0617510 (State of Incorporation)

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits, Results of Operations and Financial Condition - 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 22, 2020 Commission File Number: 1-14225 HNI Corporation Iowa 42-0617510 (State of incorporation) (IRS Employer No.) 600 East Second Street P. O. Box 1109 Muscatine, Iowa 52761-0

HNI Corporation 600 East Second Street, Muscatine, Iowa 52761, Tel 563 272 7400, Fax 563 272 7347, www.hnicorp.com

HNI Corporation 600 East Second Street, Muscatine, Iowa 52761, Tel 563 272 7400, Fax 563 272 7347, www.

- 11-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K x ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2019 OR o TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number: 1-14225 A. Full title of the plan and the address of the plan, if different from

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 1, 2020 HNI Corporation (Exact name of registrant as specified in charter) Iowa 1-14225 42-0617510 (State or other jurisdiction of incorporation) (Commission File Number) (IRS Em

HNI Corporation 600 East Second Street, Muscatine, Iowa 52761, Tel 563 272 7400, Fax 563 272 7347, www.hnicorp.com

HNI Corporation 600 East Second Street, Muscatine, Iowa 52761, Tel 563 272 7400, Fax 563 272 7347, www.

HNI Corporation Conflict Minerals Report For the Year Ended December 31, 2019

EXHIBIT 1.01 HNI Corporation Conflict Minerals Report For the Year Ended December 31, 2019 1. Conflict Minerals Rule Overview This conflict minerals report of HNI Corporation (the Corporation, we or our) for the year ended December 31, 2019 is presented to comply with Rule 13p-1 under the Securities Exchange Act of 1934 (the Rule). The Rule imposes reporting obligations on Securities and Exchange

- SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report HNI Corporation (Exact Name of Registrant as Specified in its Charter) Iowa 1-14225 42-0617510 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.) 600 East Second Street, P.O. Box 1109, Muscatine, Iowa 52761-0071 (Address of Principal E

Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 5, 2020 HNI Corporation (Exact name of registrant as specified in charter) Iowa 1-14225 42-0617510 (State or other jurisdiction of incorporation) (Commission File Number) (IRS Emp

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 28, 2020 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number: 1-14225 HNI Corporation Iowa 42-0617510 (State of Incorporation)

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 22, 2020 Commission File Number: 1-14225 HNI Corporation Iowa 42-0617510 (State of incorporation) (IRS Employer No.) 600 East Second Street P. O. Box 1109 Muscatine, Iowa 52761-

HNI Corporation 600 East Second Street, Muscatine, Iowa 52761, Tel 563 272 7400, Fax 563 272 7347, www.hnicorp.com

HNI Corporation 600 East Second Street, Muscatine, Iowa 52761, Tel 563 272 7400, Fax 563 272 7347, www.

HNI / HNI Corp. DEFA14A - - DEFA14A

HNI CORPORATION 600 East Second Street Muscatine, IA 52761 ADDITIONAL INFORMATION REGARDING THE ANNUAL MEEING OF SHAREHOLDERS TO BE HELD ON TUESDAY, MAY 5, 2020 The following Notice of Change of Location relates to the proxy statement (“Proxy Statement”) of HNI Corporation (the “Corporation”), dated March 23, 2020, furnished to shareholders of the Corporation in connection with the solicitation of proxies by the Board of Directors of the Corporation for use at the Annual Meeting of the Shareholders (“Annual Meeting”) to be held on Tuesday, May 5, 2020.

HNI / HNI Corp. / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 8)* Name of issuer: HNI Corp Title of Class of Securities: Common Stock CUSIP Number: 404251100 Date of Event Which Requires Filing of this Statement: March 31, 2020 Check the appropriate box to designate the rule pursuant to which this Schedule is filed: ☒ Rule 13d-1(b)

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 6, 2020 HNI Corporation (Exact name of registrant as specified in charter) Iowa 1-14225 42-0617510 (State or other jurisdiction of incorporation) (Commission File Number) (IRS E

HNI Corporation 600 East Second Street, Muscatine, Iowa 52761, Tel 563 272 7400, Fax 563 272 7347, www.hnicorp.com

HNI Corporation 600 East Second Street, Muscatine, Iowa 52761, Tel 563 272 7400, Fax 563 272 7347, www.

HNI / HNI Corp. DEFA14A - - DEFA14A

hnicorporationnap36529z7 *** Exercise Your Right to Vote *** Important Notice Regarding the Availability of Proxy Materials for the Shareholder Meeting to Be Held on May 5, 2020.

HNI / HNI Corp. DEF 14A - - DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ý Filed by a Party other than the Registrant ¨ Check the appropriate box: ¨ Preliminary Proxy Statement ¨ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)

Subsidiaries of the Registrant

EXHIBIT 21 SUBSIDIARIES OF THE REGISTRANT Subsidiary Country/State of Incorporation Doing Business As Allsteel Inc.

Annual Report - 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 28, 2019 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number: 1-14225 HNI Corporation Iowa 42-0617510 (State of Incorporation) (I.R

Description of Securities of HNI Corporation (incorporated by reference to Exhibit 4.1 to the Registrant’s Annual Report on Form 10-K for the year ended December 28, 2019)

Exhibit 4.1 DESCRIPTION OF SECURITIES The following description of the Corporation’s common stock, par value $1.00 (the “Common Stock”) is a summary and does not purport to be complete. It is subject to and qualified in its entirety by reference to the Corporation’s amended and restated articles of incorporation (the “Charter”) and amended and restated by-laws (the “By-Laws”), which are filed as e

Form of HNI Corporation 2017 Stock-Based Compensation Plan Performance Share Unit Award Agreement*

HNI Corporation 2017 Stock-Based Compensation Plan: Performance Share Unit Award Agreement Congratulations on your selection as a Participant who will receive Performance Share Units under the HNI Corporation 2017 Stock-Based Compensation Plan.

Amended form of HNI Corporation 2017 Stock-Based Compensation Plan Restricted Stock Unit Award Agreement*

HNI Corporation 2017 Stock-Based Compensation Plan: Restricted Stock Unit Award Agreement Congratulations on your selection as a Participant who will receive Restricted Stock Units under the HNI Corporation 2017 Stock-Based Compensation Plan.

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 19, 2020 Commission File Number: 1-14225 HNI Corporation Iowa 42-0617510 (State of incorporation) (IRS Employer No.) 600 East Second Street P. O. Box 1109 Muscatine, Iowa 527

HNI Corporation 600 East Second Street, Muscatine, Iowa 52761, Tel 563 272 7400, Fax 563 272 7347, www.hnicorp.com

HNI Corporation 600 East Second Street, Muscatine, Iowa 52761, Tel 563 272 7400, Fax 563 272 7347, www.

HNI Corporation 600 East Second Street, Muscatine, Iowa 52761, Tel 563 272 7400, Fax 563 272 7217, www.hnicorp.com

EX-99.1 2 a2122020caexhibit991.htm EXHIBIT 99.1 HNI Corporation 600 East Second Street, Muscatine, Iowa 52761, Tel 563 272 7400, Fax 563 272 7217, www.hnicorp.com News Release For Information Contact: Marshall H. Bridges, Senior Vice President and Chief Financial Officer (563) 272-7400 Matthew S. McCall, Vice President, Investor Relations and Corporate Development (563) 275-8898 HNI CORPORATION AN

HNI / HNI Corp. / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 7)* Name of issuer: HNI Corp Title of Class of Securities: Common Stock CUSIP Number: 404251100 Date of Event Which Requires Filing of this Statement: December 31, 2019 Check the appropriate box to designate the rule pursuant to which this Schedule is filed: ☒ Rule 13d-1