AAT / American Assets Trust, Inc. - Depositi SEC, Relazione annuale, dichiarazione di delega

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q

Table of Contents 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 30, 2025 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to AMERICAN ASSETS TRUST, INC. (Exact Na

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, 2025 American Assets Tru

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, 2025 American Assets Trust, Inc. (Exact name of registrant as specified in its charter) Maryland 001-35030 27-3338708 (State or other jurisdiction of incorporation) (Commissi

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American Assets Trust, Inc. Reports Second Quarter 2025 Financial Results Net income available to common stockholders of $5.5 million and $48.0 million for the three and six months ended June 30, 2025, respectively, or $0.09 and $0.79 per diluted share, respectively. Funds from Operations ("FFO") excluding lease termination fees and litigation income of $0.51 and $1.03 per diluted share for the th

American Assets Trust, Inc.'s Portfolio is concentrated in high-barrier-to-entry markets with favorable supply/demand characteristics Office Retail Multifamily Mixed-Use Market Square Feet Square Feet Units Square Feet Suites San Diego 1,801,538 1,32

SECOND QUARTER 2025 Supplemental Information Investor and Media Contact American Assets Trust, 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): June 4, 2025 American Assets Trus

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 4, 2025 American Assets Trust, Inc. (Exact name of registrant as specified in its charter) Maryland 001-35030 27-3338708 (State or other jurisdiction of incorporation) (Commissio

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 2, 2025 American Assets Trus

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 2, 2025 American Assets Trust, Inc. (Exact name of registrant as specified in its charter) Maryland 001-35030 27-3338708 (State or other jurisdiction of incorporation) (Commissio

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q

Table of Contents 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 31, 2025 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to AMERICAN ASSETS TRUST, INC. (Exact N

American Assets Trust, Inc.'s Portfolio is concentrated in high-barrier-to-entry markets with favorable supply/demand characteristics Office Retail Multifamily Mixed-Use Market Square Feet Square Feet Units Square Feet Suites San Diego 1,595,307 1,32

FIRST QUARTER 2025 Supplemental Information Investor and Media Contact American Assets Trust, Inc.

Regulation FD Disclosure, 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, 2025 American Assets Trust, Inc. (Exact name of registrant as specified in its charter) Maryland 001-35030 27-3338708 (State or other jurisdiction of incorporation) (Commiss

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American Assets Trust, Inc. Reports First Quarter 2025 Financial Results Net income available to common stockholders of $42.5 million for the first quarter, or $0.70 per diluted share. Funds from Operations ("FFO") per diluted share excluding lease termination fees and litigation income decreased 10% year-over-year for the first quarter to $0.52 per diluted share. SAN DIEGO, California - 4/29/2025

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 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)(2)) ¨ Definitive Proxy State

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 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)(2)) ý Definitive Proxy State

Form of American Assets Trust, Inc. Restricted Stock Award Agreement (Performance Vesting)

Executive Version (12-24) AMERICAN ASSETS TRUST, INC. 2011 AMENDED AND RESTATED EQUITY INCENTIVE AWARD PLAN RESTRICTED STOCK AWARD GRANT NOTICE AND RESTRICTED STOCK AWARD AGREEMENT American Assets Trust, Inc., a Maryland corporation (the “Company”), pursuant to its Amended and Restated 2011 Equity Incentive Award Plan (as amended, the “Plan”), hereby grants to the individual listed below (“Partici

Subsidiary Guarantors and Issuers of Guaranteed Securities

Exhibit 22.1 The following subsidiary of American Assets Trust, Inc. (“AAT”) is the issuer of debt securities under the Indenture, dated January 26, 2021, by and among AAT, as parent guarantor, and the subsidiary listed below. Subsidiary Registrant Issuer American Assets Trust, L.P. Issuer

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, 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 31, 2024 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to AMERICAN ASSETS TRUST, INC. (Exact Name of Registrant as Sp

List of Subsidiaries of American Assets Trust, Inc.

Exhibit 21.1 Subsidiaries of American Assets Trust, Inc. The following list sets forth American Assets Trust, Inc.'s subsidiaries as of December 31, 2024. Name Jurisdiction of Formation/Incorporation AAT Alamo Quarry, LLC Delaware AAT Bel-Spring 520, LLC Delaware AAT CC Bellevue, LLC Delaware AAT CCE III Bellevue, LLC Delaware AAT Del Monte, LLC Delaware AAT Eastgate, LLC Delaware AAT Gateway Mark

Insider Trading Compliance Program

American Assets Trust, Inc. Insider Trading Compliance Policy and Procedures I.SUMMARY Federal and state laws prohibit trading in the securities of a company while in possession of material nonpublic information and in breach of a duty of trust or confidence. These laws also prohibit anyone who is aware of material nonpublic information from providing this information to others who may trade. Viol

Description of Securities

DESCRIPTION OF THE REGISTRANT’S SECURITIES REGISTERED PURSUANT TO SECTION 12 OF THE SECURITIES EXCHANGE ACT OF 1934 References to “we,” “us,” “our,” or “the company” mean, unless the context indicates otherwise, American Assets Trust, Inc.

Amended and Restated Employment Agreement among American Assets Trust, Inc., American Assets Trust, L.P. and Ernest S. Rady dated January 1, 2025

SECOND AMENDED AND RESTATED EMPLOYMENT AGREEMENT THIS SECOND AMENDED AND RESTATED EMPLOYMENT AGREEMENT (this “Agreement”), effective as of January 1, 2025 (the “Effective Date”), is entered into by and among American Assets Trust, Inc.

Amended and Restated Independent Director Compensation Policy effective January 1, 2025

AMERICAN ASSETS TRUST, INC. INDEPENDENT DIRECTOR COMPENSATION POLICY (Amended and Restated Effective January 1, 2025) Non-employee members of the board of directors (the “Board”) of American Assets Trust, Inc. (the “Company”) shall be eligible to receive cash and equity compensation as set forth in this Independent Director Compensation Policy (as amended to date, this “Policy”). The cash and equi

Amended and Restated Employment Agreement among American Assets Trust, Inc., American Assets Trust, L.P. and Adam Wyll dated January 1, 2025

SECOND AMENDED AND RESTATED EMPLOYMENT AGREEMENT THIS SECOND AMENDED AND RESTATED EMPLOYMENT AGREEMENT (this “Agreement”), effective as of January 1, 2025 (the "Effective Date"), is entered into by and among American Assets Trust, Inc.

Form of American Assets Trust, Inc. Restricted Stock Award Agreement (Time Vesting)

Executive Time-Based Version (12-24) AMERICAN ASSETS TRUST, INC. 2011 AMENDED AND RESTATED EQUITY INCENTIVE AWARD PLAN RESTRICTED STOCK AWARD GRANT NOTICE AND RESTRICTED STOCK AWARD AGREEMENT American Assets Trust, Inc., a Maryland corporation (the “Company”), pursuant to its Amended and Restated 2011 Equity Incentive Award Plan (as amended, the “Plan”), hereby grants to the individual listed belo

American Assets Trust, Inc.'s Portfolio is concentrated in high-barrier-to-entry markets with favorable supply/demand characteristics Office Retail Multifamily Mixed-Use Market Square Feet Square Feet Units Square Feet Suites San Diego 1,595,307 1,32

FOURTH QUARTER 2024 Supplemental Information Investor and Media Contact American Assets Trust, Inc.

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American Assets Trust, Inc. Reports Fourth Quarter and Year End 2024 Financial Results Net income available to common stockholders of $9.0 million and $56.8 million for the three months and year ended December 31, 2024, respectively, or $0.15 and $0.94 per diluted share, respectively. Funds from Operations ("FFO") per diluted share decreased 4% and increased 8% year-over-year for the three months

Regulation FD Disclosure, 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 4, 2025 American Assets Trust, Inc. (Exact name of registrant as specified in its charter) Maryland 001-35030 27-3338708 (State or other jurisdiction of incorporation) (Commi

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): December 4, 2024 American Assets Trust, Inc. (Exact name of registrant as specified in its charter) Maryland 001-35030 27-3338708 (State or other jurisdiction of incorporation) (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): November 20, 2024 American Assets

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): November 20, 2024 American Assets Trust, Inc. (Exact name of registrant as specified in its charter) Maryland 001-35030 27-3338708 (State or other jurisdiction of incorporation) (Comm

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q

Table of Contents 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, 2024 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to AMERICAN ASSETS TRUST, INC. (Exa

American Assets Trust, Inc.'s Portfolio is concentrated in high-barrier-to-entry markets with favorable supply/demand characteristics Office Retail Multifamily Mixed-Use Market Square Feet Square Feet Units Square Feet Suites San Diego 1,590,552 1,32

THIRD QUARTER 2024 Supplemental Information Investor and Media Contact American Assets Trust, Inc.

Regulation FD Disclosure, 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 American Assets Trust, Inc. (Exact name of registrant as specified in its charter) Maryland 001-35030 27-3338708 (State or other jurisdiction of incorporation) (Commi

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American Assets Trust, Inc. Reports Third Quarter 2024 Financial Results Net income available to common stockholders of $16.7 million and $47.8 million for the three and nine months ended September 30, 2024, respectively, or $0.28 and $0.79 per diluted share, respectively. Funds from Operations ("FFO") per diluted share increased 20% and 10% year-over-year for the three and nine months ended Septe

AAT / American Assets Trust, Inc. / STATE STREET CORP Passive Investment

SC 13G/A 1 AmericanAssetsTInc.htm SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. )* AMERICAN ASSETS TRUST INC (Name of Issuer) COMMON STOCK (Title of Class of Securities) 024013104 (CUSIP Number) September 30, 2024 (Date of Event Which Requires Filing of This Statement) Check the appropriate box to designate the rule

Officers’ Certificate, dated September 17, 2024, pursuant to Sections 102, 201, 301 and 303 of the Indenture, dated as of January 26, 2021, among American Assets Trust, L.P., as issuer, American Assets Trust, Inc., as guarantor, and U.S. Bank Trust Company, National Association, as successor in interest to U.S. Bank National Association, as trustee, establishing a series of securities entitled “6.150% Senior Notes due 2034,” including the form of 6.150% Senior Note due 2034 and the form of related guarantee.

Exhibit 4.2 Officers’ Certificate Pursuant to Sections 102, 201, 301 and 303 of the Indenture Dated: September 17, 2024 The undersigned, Ernest S. Rady, Chairman and Chief Executive Officer, and Adam Wyll, President, Chief Operating Officer and Secretary, of American Assets Trust, Inc., a Maryland corporation (“AAT”), the guarantor (the “Guarantor”) of the Securities referred to below and the sole

Current Report

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 17, 2024 American Assets Trust, Inc. American Assets Trust, L.P. (Exact name of registrant as specified in its charter) Maryland 001-35030 27-3338708 (American Assets Trust,

Calculation of Filing Fee Tables (Form Type) American Assets Trust, Inc. American Assets Trust, L.P. (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities

Exhibit 107 Calculation of Filing Fee Tables 424(b)(2) (Form Type) American Assets Trust, Inc.

Current Report

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 10, 2024 American Assets Trust, Inc. American Assets Trust, L.P. (Exact name of registrant as specified in its charter) Maryland 001-35030 27-3338708 (American Assets Trust,

Underwriting Agreement, dated September 10, 2024.

Exhibit 1.1 Execution Version $525,000,000 AMERICAN ASSETS TRUST, L.P. 6.150% Senior Notes due 2034 UNDERWRITING AGREEMENT September 10, 2024 September 10, 2024 Wells Fargo Securities, LLC Mizuho Securities USA LLC PNC Capital Markets LLC c/o Wells Fargo Securities, LLC 550 South Tryon Street, 5th Floor Charlotte, North Carolina 28202 c/o Mizuho Securities USA LLC 1271 Avenue of the Americas, 3rd

PROSPECTUS SUPPLEMENT (To Prospectus dated December 20, 2023) American Assets Trust, L.P. 6.150% Senior Notes due 2034 Guaranteed by American Assets Trust, Inc.

Filed Pursuant to Rule 424(b)(2) Registration Nos. 333-276165, 333-276165-01 PROSPECTUS SUPPLEMENT (To Prospectus dated December 20, 2023) $525,000,000 American Assets Trust, L.P. 6.150% Senior Notes due 2034 Guaranteed by American Assets Trust, Inc. The notes will bear interest at the rate of 6.150% per year. Interest on the notes will be payable semi-annually in arrears on April 1 and October 1

AMERICAN ASSETS TRUST, INC. ANNOUNCES PRICING OF $525 MILLION OF 6.150% SENIOR UNSECURED NOTES DUE 2034

Exhibit 99.1 AMERICAN ASSETS TRUST, INC. ANNOUNCES PRICING OF $525 MILLION OF 6.150% SENIOR UNSECURED NOTES DUE 2034 San Diego – September 10, 2024 – American Assets Trust, Inc. (NYSE: AAT) (the “company”) today announced that its operating partnership, American Assets Trust, L.P. (the “operating partnership”), has priced a public offering of $525 million aggregate principal amount of 6.150% senio

Subject to completion, dated September 10, 2024 PRELIMINARY PROSPECTUS SUPPLEMENT (To Prospectus dated December 20, 2023) American Assets Trust, L.P.  % Senior Notes due 20  Guaranteed by American Assets Trust, Inc.

Table of Contents Filed Pursuant to Rule 424(b)(2) Registration Nos. 333-276165, 333-276165-01 This preliminary prospectus supplement relates to an effective registration statement under the Securities Act of 1933, as amended, but is not complete and may be changed. This preliminary prospectus supplement and the accompanying prospectus are not an offer to sell these securities and are not soliciti

AMERICAN ASSETS TRUST, L.P., AS ISSUER AMERICAN ASSETS TRUST, INC., AS GUARANTOR Pricing Term Sheet $525,000,000 6.150% Senior Notes due 2034 Issuer: American Assets Trust, L.P. Guarantor: American Assets Trust, Inc. Ratings: (Moody’s / S&P / Fitch)*

Issuer Free Writing Prospectus Filed Pursuant to Rule 433 Relating to Preliminary Prospectus Supplement dated September 10, 2024 to Prospectus dated December 20, 2023 Registration Nos.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q

Table of Contents 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 30, 2024 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to AMERICAN ASSETS TRUST, INC. (Exact Na

Regulation FD Disclosure, 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): July 30, 2024 American Assets Trust, Inc. (Exact name of registrant as specified in its charter) Maryland 001-35030 27-3338708 (State or other jurisdiction of incorporation) (Commissi

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American Assets Trust, Inc. Reports Second Quarter 2024 Financial Results Net income available to common stockholders of $11.9 million and $31.2 million for the three and six months ended June 30, 2024, respectively, or $0.20 and $0.52 per diluted share, respectively. Funds from Operations ("FFO") per diluted share increased 2% and 6% year-over-year for the three and six months ended June 30, 2024

American Assets Trust, Inc.'s Portfolio is concentrated in high-barrier-to-entry markets with favorable supply/demand characteristics Office Retail Multifamily Mixed-Use Market Square Feet Square Feet Units Square Feet Suites San Diego 1,590,552 1,32

SECOND QUARTER 2024 Supplemental Information Investor and Media Contact American Assets Trust, 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): June 5, 2024 American Assets Trus

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 5, 2024 American Assets Trust, Inc. (Exact name of registrant as specified in its charter) Maryland 001-35030 27-3338708 (State or other jurisdiction of incorporation) (Commissio

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): June 3, 2024 American Assets Trust, Inc. (Exact name of registrant as specified in its charter) Maryland 001-35030 27-3338708 (State or other jurisdiction of incorporation) (Commissio

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q

Table of Contents 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 31, 2024 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to AMERICAN ASSETS TRUST, INC. (Exact N

American Assets Trust, Inc.'s Portfolio is concentrated in high-barrier-to-entry markets with favorable supply/demand characteristics Office Retail Multifamily Mixed-Use Market Square Feet Square Feet Units Square Feet Suites San Diego 1,590,552 1,32

FIRST QUARTER 2024 Supplemental Information Investor and Media Contact American Assets Trust, Inc.

Three Months Ended (1)

American Assets Trust, Inc. Reports First Quarter 2024 Financial Results Net income available to common stockholders of $19.3 million for the first quarter, or $0.32 per diluted share. Funds from Operations ("FFO") per diluted share increased 8% year-over-year for the first quarter to $0.71 per diluted share. Increased 2024 FFO per diluted share guidance to a range of $2.24 to $2.34 with a midpoin

Regulation FD Disclosure, 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 30, 2024 American Assets Trust, Inc. (Exact name of registrant as specified in its charter) Maryland 001-35030 27-3338708 (State or other jurisdiction of incorporation) (Commiss

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 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)(2)) ¨ Definitive Proxy State

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 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)(2)) ý Definitive Proxy State

Form of American Assets Trust, Inc. Restricted Stock Award Agreement (Performance Vesting)

Executive Version (12-23) AMERICAN ASSETS TRUST, INC. 2011 AMENDED AND RESTATED EQUITY INCENTIVE AWARD PLAN RESTRICTED STOCK AWARD GRANT NOTICE AND RESTRICTED STOCK AWARD AGREEMENT American Assets Trust, Inc., a Maryland corporation (the “Company”), pursuant to its Amended and Restated 2011 Equity Incentive Award Plan (as amended, the “Plan”), hereby grants to the individual listed below (“Partici

Subsidiary Guarantors and Issuers of Guaranteed Securities

Exhibit 22.1 The following subsidiary of American Assets Trust, Inc. (“AAT”) is the issuer of debt securities under the Indenture, dated January 26, 2021, by and among AAT, as parent guarantor, and the subsidiary listed below. Subsidiary Registrant Issuer American Assets Trust, L.P. Issuer

Policy Relating to Recovery of Erroneously Awarded Compensation

AMERICAN ASSETS TRUST, INC. POLICY FOR RECOVERY OF ERRONEOUSLY AWARDED COMPENSATION American Assets Trust, Inc. (the “Company”) has adopted this Policy for Recovery of Erroneously Awarded Compensation (the “Policy”), effective as of July 20, 2023 (the “Effective Date”). Capitalized terms used in this Policy but not otherwise defined herein are defined in Section 11. 1.Persons Subject to Policy Thi

List of Subsidiaries of American Assets Trust, Inc.

Exhibit 21.1 Subsidiaries of American Assets Trust, Inc. The following list sets forth American Assets Trust, Inc.'s subsidiaries as of December 31, 2023. Name Jurisdiction of Formation/Incorporation AAT Alamo Quarry, LLC Delaware AAT Bel-Spring 520, LLC Delaware AAT CC Bellevue, LLC Delaware AAT CCE III Bellevue, LLC Delaware AAT Del Monte, LLC Delaware AAT Eastgate, LLC Delaware AAT Gateway Mark

Description of Securities

DESCRIPTION OF THE REGISTRANT’S SECURITIES REGISTERED PURSUANT TO SECTION 12 OF THE SECURITIES EXCHANGE ACT OF 1934 References to “we,” “us,” “our,” or “the company” mean, unless the context indicates otherwise, American Assets Trust, 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, 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 31, 2023 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to AMERICAN ASSETS TRUST, INC. (Exact Name of Registrant as Sp

AAT / American Assets Trust, Inc. / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SC 13G/A 1 tv0252-americanassetstrustin.htm SCHEDULE 13G/A SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 14)* Name of issuer: American Assets Trust Inc Title of Class of Securities: Common Stock CUSIP Number: 024013104 Date of Event Which Requires Filing of this Statement: December 29, 2023 Check the appropriate box

American Assets Trust, Inc.'s Portfolio is concentrated in high-barrier-to-entry markets with favorable supply/demand characteristics Office Retail Multifamily Mixed-Use Market Square Feet Square Feet Units Square Feet Suites San Diego 1,590,552 1,32

FOURTH QUARTER 2023 Supplemental Information Investor and Media Contact American Assets Trust, Inc.

Regulation FD Disclosure, 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 6, 2024 American Assets Trust, Inc. (Exact name of registrant as specified in its charter) Maryland 001-35030 27-3338708 (State or other jurisdiction of incorporation) (Commi

Three Months Ended (1)

American Assets Trust, Inc. Reports Fourth Quarter and Year End 2023 Financial Results Net income available to common stockholders of $10.5 million and $50.4 million for the three months and year ended December 31, 2023, respectively, or $0.17 and $0.84 per diluted share, respectively. Funds from Operations ("FFO") per diluted share increased 2% and 3% year-over-year for the three months and year

As filed with the Securities and Exchange Commission on December 20, 2023

As filed with the Securities and Exchange Commission on December 20, 2023 Registration No.

Consent of Venable LLP (included in Exhibit 5.

Exhibit 5.3 [LETTERHEAD OF VENABLE LLP] December 20, 2023 American Assets Trust, Inc. 3420 Carmel Mountain Road, Suite 100 San Diego, CA 92121 Re: Registration Statement on Form S-3 Ladies and Gentlemen: We have served as Maryland counsel to American Assets Trust, Inc., a Maryland corporation (the “Company”), in connection with certain matters of Maryland law arising out of the sale and issuance b

Statement of Eligibility of Trustee on Form T-1 under the Trust Indenture Act of 1939, as amended.

Exhibit 25.1 SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM T-1 STATEMENT OF ELIGIBILITY UNDER THE TRUST INDENTURE ACT OF 1939 OF A CORPORATION DESIGNATED TO ACT AS TRUSTEE Check if an Application to Determine Eligibility of a Trustee Pursuant to Section 305(b)(2) ☐ U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION (Exact name of Trustee as specified in its charter) 91-1821036 I.R.S. E

Subsidiary Guarantors and Issuers of Guaranteed Securities

Exhibit 22.1 The following subsidiary of American Assets Trust, Inc. (“AAT”) will be the issuer of debt securities under the indenture to be entered into among AAT, as parent guarantor, and the subsidiary listed below. Subsidiary Registrant Issuer American Assets Trust, L.P. Issuer

Consent of Venable LLP (included in Exhibit 5.

Exhibit 5.4 [LETTERHEAD OF VENABLE LLP] December 20, 2023 American Assets Trust, Inc. 3420 Carmel Mountain Road, Suite 100 San Diego, CA 92121 Re: Registration Statement on Form S-3 Ladies and Gentlemen: We have served as Maryland counsel to American Assets Trust, Inc., a Maryland corporation (the “Company”), in connection with certain matters of Maryland law arising out of the registration of 22,

Filing Fee Table.

Exhibit 107 Calculation of Filing Fee Tables Form S-3 (Form Type) American Assets Trust, Inc.

Regulation FD Disclosure

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): November 14, 2023 American Assets Trust, Inc. (Exact name of registrant as specified in its charter) Maryland 001-35030 27-3338708 (State or other jurisdiction of incorporation) (Comm

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q

Table of Contents 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 For the transition period from to AMERICAN ASSETS TRUST, INC. (Exa

Three Months Ended (1)

American Assets Trust, Inc. Reports Third Quarter 2023 Financial Results Net income available to common stockholders of $11.8 million and $39.9 million for the three and nine months ended September 30, 2023, respectively, or $0.20 and $0.66 per diluted share, respectively. Funds from Operations ("FFO") per diluted share decreased 6% and increased 3% year-over-year for the three and nine months end

American Assets Trust, Inc.'s Portfolio is concentrated in high-barrier-to-entry markets with favorable supply/demand characteristics Office Retail Multifamily Mixed-Use Market Square Feet Square Feet Units Square Feet Suites San Diego 1,588,956 1,32

THIRD QUARTER 2023 Supplemental Information Investor and Media Contact American Assets Trust, Inc.

Regulation FD Disclosure, 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, 2023 American Assets Trust, Inc. (Exact name of registrant as specified in its charter) Maryland 001-35030 27-3338708 (State or other jurisdiction of incorporation) (Commi

Regulation FD Disclosure

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 12, 2023 American Assets Trust, Inc. (Exact name of registrant as specified in its charter) Maryland 001-35030 27-3338708 (State or other jurisdiction of incorporation) (Com

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q

Table of Contents 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 30, 2023 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to AMERICAN ASSETS TRUST, INC. (Exact Na

American Assets Trust, Inc.'s Portfolio is concentrated in high-barrier-to-entry markets with favorable supply/demand characteristics Office Retail Multifamily Mixed-Use Market Square Feet Square Feet Units Square Feet Suites San Diego 1,588,956 1,32

SECOND QUARTER 2023 Supplemental Information Investor and Media Contact American Assets Trust, Inc.

Three Months Ended (1)

American Assets Trust, Inc. Reports Second Quarter 2023 Financial Results Net income available to common stockholders of $12.0 million and $28.1 million for the three and six months ended June 30, 2023, respectively, or $0.20 and $0.47 per diluted share, respectively. Funds From Operations per diluted share increased 2% and 8% year-over-year for the three and six months ended June 30, 2023, respec

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, 2023 American Assets Tru

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, 2023 American Assets Trust, Inc. (Exact name of registrant as specified in its charter) Maryland 001-35030 27-3338708 (State or other jurisdiction of incorporation) (Commissi

Amended and Restated Bylaws of American Assets Trust, Inc.

AMERICAN ASSETS TRUST, INC. AMENDED AND RESTATED BYLAWS (Effective July 20, 2023) ARTICLE I OFFICES Section 1.PRINCIPAL OFFICE. The principal office of the Corporation in the State of Maryland shall be located at such place as the Board of Directors may designate. Section 2.ADDITIONAL OFFICES. The Corporation may have additional offices, including a principal executive office, at such places as th

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 6, 2023 American Assets Trus

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 6, 2023 American Assets Trust, Inc. (Exact name of registrant as specified in its charter) Maryland 001-35030 27-3338708 (State or other jurisdiction of incorporation) (Commissio

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 5, 2023 American Assets Trus

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 5, 2023 American Assets Trust, Inc. (Exact name of registrant as specified in its charter) Maryland 001-35030 27-3338708 (State or other jurisdiction of incorporation) (Commissio

Regulation FD Disclosure

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 American Assets Trust, Inc. (Exact name of registrant as specified in its charter) Maryland 001-35030 27-3338708 (State or other jurisdiction of incorporation) (Commissio

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q

Table of Contents 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 31, 2023 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to AMERICAN ASSETS TRUST, INC. (Exact N

American Assets Trust, Inc.'s Portfolio is concentrated in high-barrier-to-entry markets with favorable supply/demand characteristics Office Retail Multifamily Mixed-Use Market Square Feet Square Feet Units Square Feet Suites San Diego 1,588,956 1,32

FIRST QUARTER 2023 Supplemental Information Investor and Media Contact American Assets Trust, 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): April 25, 2023 American Assets Tr

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 25, 2023 American Assets Trust, Inc. (Exact name of registrant as specified in its charter) Maryland 001-35030 27-3338708 (State or other jurisdiction of incorporation) (Commiss

Three Months Ended (1)

American Assets Trust, Inc. Reports First Quarter 2023 Financial Results Net income available to common stockholders of $16.1 million for the first quarter, or $0.27 per diluted share. Funds From Operations per diluted share increased 16% year-over-year for the first quarter to $0.66 per diluted share. Increased 2023 FFO per diluted share guidance to a range of $2.23 to $2.33 with a midpoint of $2

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 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)(2)) ý Definitive Proxy State

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 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)(2)) ¨ Definitive Proxy State

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 6, 2023 American Assets Tru

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 6, 2023 American Assets Trust, Inc. (Exact name of registrant as specified in its charter) Maryland 001-35030 27-3338708 (State or other jurisdiction of incorporation) (Commissi

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 For the transition period from to AMERICAN ASSETS TRUST, INC. (Exact Name of Registrant as Sp

Form of American Assets Trust, Inc. Restricted Stock Award Agreement (Performance Vesting)

Executive Version (12-22) AMERICAN ASSETS TRUST, INC. 2011 AMENDED AND RESTATED EQUITY INCENTIVE AWARD PLAN RESTRICTED STOCK AWARD GRANT NOTICE AND RESTRICTED STOCK AWARD AGREEMENT American Assets Trust, Inc., a Maryland corporation (the “Company”), pursuant to its Amended and Restated 2011 Equity Incentive Award Plan (as amended, the “Plan”), hereby grants to the individual listed below (“Partici

Subsidiary Guarantors and Issuers of Guaranteed Securities

Exhibit 22.1 The following subsidiary of American Assets Trust, Inc. (“AAT”) is the issuer of debt securities under the Indenture, dated January 26, 2021, by and among AAT, as parent guarantor, and the subsidiary listed below. Subsidiary Registrant Issuer American Assets Trust, L.P. Issuer

List of Subsidiaries of American Assets Trust, Inc.

Exhibit 21.1 Subsidiaries of American Assets Trust, Inc. The following list sets forth American Assets Trust, Inc.'s subsidiaries as of December 31, 2022. Name Jurisdiction of Formation/Incorporation AAT Alamo Quarry, LLC Delaware AAT Bel-Spring 520, LLC Delaware AAT CC Bellevue, LLC Delaware AAT CCE III Bellevue, LLC Delaware AAT Del Monte, LLC Delaware AAT Eastgate, LLC Delaware AAT Gateway Mark

Description of Securities

DESCRIPTION OF THE REGISTRANT’S SECURITIES REGISTERED PURSUANT TO SECTION 12 OF THE SECURITIES EXCHANGE ACT OF 1934 References to “we,” “us,” “our,” or “the company” mean, unless the context indicates otherwise, American Assets Trust, Inc.

AAT / American Assets Trust, Inc / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SC 13G/A 1 tv0229-americanassetstrustin.htm SCHEDULE 13G/A SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 13)* Name of issuer: American Assets Trust Inc. Title of Class of Securities: REIT CUSIP Number: 024013104 Date of Event Which Requires Filing of this Statement: December 30, 2022 Check the appropriate box to des

Three Months Ended (1)

American Assets Trust, Inc. Reports Fourth Quarter and Year End 2022 Financial Results Net income available to common stockholders of $9.6 million and $43.5 million for the three months and year ended December 31, 2022, respectively, or $0.16 and $0.72 per diluted share, respectively. Funds From Operations per diluted share increased 4% and 17% year-over-year for the three months and year ended De

American Assets Trust, Inc.'s Portfolio is concentrated in high-barrier-to-entry markets with favorable supply/demand characteristics Office Retail Multifamily Mixed-Use Market Square Feet Square Feet Units Square Feet Suites San Diego 1,588,956 1,32

FOURTH QUARTER 2022 Supplemental Information Investor and Media Contact American Assets Trust, Inc.

Regulation FD Disclosure, 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 7, 2023 American Assets Trust, Inc. (Exact name of registrant as specified in its charter) Maryland 001-35030 27-3338708 (State or other jurisdiction of incorporation) (Commi

Amended and Restated Term Loan Agreement dated January 5, 2023, by and among American Assets Trust, Inc., American Assets Trust, L.P., each lender from time-to-time party thereto, and U.S. Bank National Association, as Administrative Agent.

EXECUTION VERSION Published CUSIP Deal Number: 02401JAF6 Published CUSIP Facility Number: 02401JAG4 AMENDED AND RESTATED TERM LOAN AGREEMENT Dated as of January 5, 2023 among AMERICAN ASSETS TRUST, L.

American Assets Trust, Inc. Increases Borrowings and Extends Maturity Date in its Amended and Restated Term Loan Agreement

American Assets Trust, Inc. Increases Borrowings and Extends Maturity Date in its Amended and Restated Term Loan Agreement Company Release ? January 5, 2023 SAN DIEGO ?American Assets Trust, Inc. (NYSE:AAT) (the ?Company?) announced today that it has amended and restated its existing term loan agreement. The term loan agreement was amended and restated to, among other things, (1) increase the full

Regulation FD Disclosure, 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): January 5, 2023 American Assets Trust, Inc. American Assets Trust, L.P. (Exact name of registrant as specified in its charter) Maryland 001-35030 27-3338708 (American Assets Trust, In

Regulation FD Disclosure

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): November 16, 2022 American Assets Trust, Inc. (Exact name of registrant as specified in its charter) Maryland 001-35030 27-3338708 (State or other jurisdiction of incorporation) (Comm

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q

Table of Contents 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, 2022 or ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to AMERICAN ASSETS TRUST, INC. (Exa

Regulation FD Disclosure, 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, 2022 American Assets Trust, Inc. (Exact name of registrant as specified in its charter) Maryland 001-35030 27-3338708 (State or other jurisdiction of incorporation) (Commi

Three Months Ended (1)

American Assets Trust, Inc. Reports Third Quarter 2022 Financial Results Net income available to common stockholders of $12.8 million and $33.9 million for the three and nine months ended September 30, 2022, respectively, or $0.21 and $0.56 per diluted share, respectively. Funds From Operations per diluted share increased 11% and 23% year-over-year for the three and nine months ended September 30,

American Assets Trust, Inc.'s Portfolio is concentrated in high-barrier-to-entry markets with favorable supply/demand characteristics Office Retail Multifamily Mixed-Use Market Square Feet Square Feet Units Square Feet Suites San Diego 1,563,221 1,32

THIRD QUARTER 2022 Supplemental Information Investor and Media Contact American Assets Trust, Inc.

AAT / American Assets Trust, Inc / American Assets Trust, Inc. - SC 13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 8)* American Assets Trust, Inc. (Name of Issuer) Common Stock, par value $0.01 per share (Title of Class of Securities) 024013 10 4 (CUSIP Number) Ernest S. Rady Ernest Rady Trust U/D/T March 10, 1983 3420 Carmel Mountain Road, Suite 100 San Diego, Californi

Regulation FD Disclosure

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 American Assets Trust, Inc. (Exact name of registrant as specified in its charter) Maryland 001-35030 27-3338708 (State or other jurisdiction of incorporation) (Com

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q

Table of Contents 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 30, 2022 or ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to AMERICAN ASSETS TRUST, INC. (Exact Na

Regulation FD Disclosure, 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 26, 2022 American Assets Trust, Inc. (Exact name of registrant as specified in its charter) Maryland 001-35030 27-3338708 (State or other jurisdiction of incorporation) (Commissi

Three Months Ended (1)

American Assets Trust, Inc. Reports Second Quarter 2022 Financial Results Net income available to common stockholders of $10.6 million and $21.1 million for the three and six months ended June 30, 2022, respectively, or $0.18 and $0.35 per diluted share, respectively. Funds From Operations per diluted share increased 14% and 30% year-over-year for the three and six months ended June 30, 2022, resp

American Assets Trust, Inc.'s Portfolio is concentrated in high-barrier-to-entry markets with favorable supply/demand characteristics Office Retail Multifamily Mixed-Use Market Square Feet Square Feet Units Square Feet Suites San Diego 1,563,221 1,32

SECOND QUARTER 2022 Supplemental Information Investor and Media Contact American Assets Trust, Inc.

Regulation FD Disclosure

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 19, 2022 American Assets Trust, Inc. (Exact name of registrant as specified in its charter) Maryland 001-35030 27-3338708 (State or other jurisdiction of incorporation) (Commissi

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): June 7, 2022 American Assets Trust, Inc. (Exact name of registrant as specified in its charter) Maryland 001-35030 27-3338708 (State or other jurisdiction of incorporation) (Commissio

Regulation FD Disclosure

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 7, 2022 American Assets Trust, Inc. (Exact name of registrant as specified in its charter) Maryland 001-35030 27-3338708 (State or other jurisdiction of incorporation) (Commissio

Regulation FD Disclosure

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 27, 2022 American Assets Trust, Inc. (Exact name of registrant as specified in its charter) Maryland 001-35030 27-3338708 (State or other jurisdiction of incorporation) (Commissio

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q

Table of Contents 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 31, 2022 or ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to AMERICAN ASSETS TRUST, INC. (Exact N

Regulation FD Disclosure, 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 26, 2022 American Assets Trust, Inc. (Exact name of registrant as specified in its charter) Maryland 001-35030 27-3338708 (State or other jurisdiction of incorporation) (Commiss

American Assets Trust, Inc.'s Portfolio is concentrated in high-barrier-to-entry markets with favorable supply/demand characteristics Office Retail Multifamily Mixed-Use Market Square Feet Square Feet Units Square Feet Suites San Diego 1,563,221 1,32

FIRST QUARTER 2022 Supplemental Information Investor and Media Contact American Assets Trust, Inc.

Three Months Ended (1)

American Assets Trust, Inc. Reports First Quarter 2022 Financial Results Net income available to common stockholders of $10.5 million for the first quarter, or $0.18 per diluted share. Funds From Operations per diluted share increased 50% year-over-year for the first quarter to $0.57 per diluted share. Increased 2022 FFO per diluted share guidance to a range of $2.13 to $2.21 with a midpoint of $2

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ? 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)(2)) ? Definitive Proxy State

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ? 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)(2)) ? Definitive Proxy State

Regulation FD Disclosure

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, 2022 American Assets Trust, Inc. (Exact name of registrant as specified in its charter) Maryland 001-35030 27-3338708 (State or other jurisdiction of incorporation) (Comm

Subsidiary Guarantors and Issuers of Guaranteed Securities

Exhibit 22.1 The following subsidiary of American Assets Trust, Inc. (?AAT?) is the issuer of debt securities under the Indenture, dated January 26, 2021, by and among AAT, as parent guarantor, and the subsidiary listed below. Subsidiary Registrant Issuer American Assets Trust, L.P. Issuer

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, 2021 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, 2021 or ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to AMERICAN ASSETS TRUST, INC. (Exact Name of Registrant as Sp

Form of American Assets Trust, Inc. Restricted Stock Award Agreement (Performance Vesting)

Executive Version (12-21) AMERICAN ASSETS TRUST, INC. 2011 AMENDED AND RESTATED EQUITY INCENTIVE AWARD PLAN RESTRICTED STOCK AWARD GRANT NOTICE AND RESTRICTED STOCK AWARD AGREEMENT American Assets Trust, Inc., a Maryland corporation (the ?Company?), pursuant to its Amended and Restated 2011 Equity Incentive Award Plan (as amended, the ?Plan?), hereby grants to the individual listed below (?Partici

List of Subsidiaries of American Assets Trust, Inc.

Exhibit 21.1 Subsidiaries of American Assets Trust, Inc. The following list sets forth American Assets Trust, Inc.'s subsidiaries as of December 31, 2021. Name Jurisdiction of Formation/Incorporation AAT CC Bellevue, LLC Delaware AAT CCE III Bellevue, LLC Delaware AAT Eastgate, LLC Delaware AAT Geary Marketplace, LLC Delaware AAT Lloyd District, LLC Delaware AAT La Jolla Commons, LLC Delaware AAT

Description of Securities

DESCRIPTION OF THE REGISTRANT?S SECURITIES REGISTERED PURSUANT TO SECTION 12 OF THE SECURITIES EXCHANGE ACT OF 1934 References to ?we,? ?us,? ?our,? or ?the company? mean, unless the context indicates otherwise, American Assets Trust, Inc.

AAT / American Assets Trust, Inc / 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.: 12)* Name of issuer: American Assets Trust Inc. Title of Class of Securities: REIT CUSIP Number: 024013104 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: ☒

American Assets Trust, Inc.'s Portfolio is concentrated in high-barrier-to-entry markets with favorable supply/demand characteristics Office Retail Multifamily Mixed-Use Market Square Feet Square Feet Units Square Feet Suites San Diego 1,563,221 1,32

FOURTH QUARTER 2021 Supplemental Information Investor and Media Contact American Assets Trust, Inc.

Regulation FD Disclosure, 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 8, 2022 American Assets Trust, Inc. (Exact name of registrant as specified in its charter) Maryland 001-35030 27-3338708 (State or other jurisdiction of incorporation) (Commi

Three Months Ended (1)

American Assets Trust, Inc. Reports Fourth Quarter and Year End 2021 Financial Results Net income available to common stockholders of $8.1 million and $28.4 million for the three months and year ended December 31, 2021, respectively, or $0.14 and $0.47 per diluted share, respectively. Funds From Operations per diluted share increased 32% and 6% year-over-year for the three months and year ended De

Regulation FD Disclosure, 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): January 5, 2022 American Assets Trust, Inc. American Assets Trust, L.P. (Exact name of registrant as specified in its charter) Maryland 001-35030 27-3338708 (American Assets Trust, In

American Assets Trust, Inc. Increases Revolving Line of Credit to $400 Million and Extends Maturity Date in Its Third Amended and Restated Credit Agreement

American Assets Trust, Inc. Increases Revolving Line of Credit to $400 Million and Extends Maturity Date in Its Third Amended and Restated Credit Agreement Company Release ? January 5, 2022 SAN DIEGO ?American Assets Trust, Inc. (NYSE:AAT) (the ?Company?) announced today that it has amended and restated its existing credit agreement. The credit agreement was amended and restated to, among other th

Third Amended and Restated Credit Agreement dated January 5, 2022, by and among American Assets Trust, Inc., American Assets Trust, L.P., Bank of America, N.A., as Administrative Agent, and other entities named therein.

Published CUSIP Number: 02401JAL3 THIRD AMENDED AND RESTATED CREDIT AGREEMENT Dated as of January 5, 2022 among AMERICAN ASSETS TRUST, L.

Equity Distribution Agreement, dated December 3, 2021, by and among American Assets Trust, Inc., American Assets Trust, L.P., and Mizuho Securities USA LLC

AMERICAN ASSETS TRUST, INC. $250,000,000 of Common Stock EQUITY DISTRIBUTION AGREEMENT Dated: December 3, 2021 Table of Contents Page SECTION 1. Description of Securities. 1 SECTION 2. Placements. 2 SECTION 3. Sale of Placement Securities by Placement Agent. 3 SECTION 4. Suspension of Sales. 4 SECTION 5. Representations and Warranties. 4 SECTION 6. Sale and Delivery to Placement Agent; Settlement.

Equity Distribution Agreement, dated December 3, 2021, by and among American Assets Trust, Inc., American Assets Trust, L.P., and BofA Securities, Inc.

AMERICAN ASSETS TRUST, INC. $250,000,000 of Common Stock EQUITY DISTRIBUTION AGREEMENT Dated: December 3, 2021 Table of Contents Page SECTION 1. Description of Securities. 1 SECTION 2. Placements. 2 SECTION 3. Sale of Placement Securities by Placement Agent. 3 SECTION 4. Suspension of Sales. 4 SECTION 5. Representations and Warranties. 4 SECTION 6. Sale and Delivery to Placement Agent; Settlement.

Equity Distribution Agreement, dated December 3, 2021, by and among American Assets Trust, Inc., American Assets Trust, L.P., and BTIG, LLC

AMERICAN ASSETS TRUST, INC. $250,000,000 of Common Stock EQUITY DISTRIBUTION AGREEMENT Dated: December 3, 2021 Table of Contents Page SECTION 1. Description of Securities. 1 SECTION 2. Placements. 2 SECTION 3. Sale of Placement Securities by Placement Agent. 3 SECTION 4. Suspension of Sales. 4 SECTION 5. Representations and Warranties. 4 SECTION 6. Sale and Delivery to Placement Agent; Settlement.

Equity Distribution Agreement, dated December 3, 2021, by and among American Assets Trust, Inc., American Assets Trust, L.P., and Wells Fargo Securities, LLC

AMERICAN ASSETS TRUST, INC. $250,000,000 of Common Stock EQUITY DISTRIBUTION AGREEMENT Dated: December 3, 2021 Table of Contents Page SECTION 1. Description of Securities. 1 SECTION 2. Placements. 2 SECTION 3. Sale of Placement Securities by Placement Agent. 3 SECTION 4. Suspension of Sales. 4 SECTION 5. Representations and Warranties. 4 SECTION 6. Sale and Delivery to Placement Agent; Settlement.

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): December 3, 2021 American Assets Trust, Inc. American Assets Trust, L.P. (Exact name of registrant as specified in its charter) Maryland 001-35030 27-3338708 (American Assets Trust, I

CALCULATION OF REGISTRATION FEE

Filed Pursuant to Rule 424(b)(5) Registration No. 333-252097 CALCULATION OF REGISTRATION FEE Title Of Securities Being Registered Proposed Maximum Aggregate Offering Price(1) Amount Of Registration Fee(2) Common Stock, par value $.01 per share $250,000,000 $27,275 (1) Calculated pursuant to Rule 457(o), based on the Proposed Maximum Aggregate Offering Price. (2) The registration fee of $27,275 is

Equity Distribution Agreement, dated December 3, 2021, by and among American Assets Trust, Inc., American Assets Trust, L.P., and Jefferies LLC

AMERICAN ASSETS TRUST, INC. $250,000,000 of Common Stock EQUITY DISTRIBUTION AGREEMENT Dated: December 3, 2021 Table of Contents Page SECTION 1. Description of Securities. 1 SECTION 2. Placements. 2 SECTION 3. Sale of Placement Securities by Placement Agent. 3 SECTION 4. Suspension of Sales. 4 SECTION 5. Representations and Warranties. 4 SECTION 6. Sale and Delivery to Placement Agent; Settlement.

Regulation FD Disclosure

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): November 10, 2021 American Assets Trust, Inc. (Exact name of registrant as specified in its charter) Maryland 001-35030 27-3338708 (State or other jurisdiction of incorporation) (Comm

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q

Table of Contents 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, 2021 or ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to AMERICAN ASSETS TRUST, INC. (Exa

Regulation FD Disclosure, 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 26, 2021 American Assets Trust, Inc. (Exact name of registrant as specified in its charter) Maryland 001-35030 27-3338708 (State or other jurisdiction of incorporation) (Commi

American Assets Trust, Inc.'s Portfolio is concentrated in high-barrier-to-entry markets with favorable supply/demand characteristics Office Retail Multifamily Mixed-Use Market Square Feet Square Feet Units Square Feet Suites San Diego 1,550,673 1,32

THIRD QUARTER 2021 Supplemental Information Investor and Media Contact American Assets Trust, Inc.

Three Months Ended (1)

American Assets Trust, Inc. Reports Third Quarter 2021 Financial Results Net income available to common stockholders of $10.0 million and $20.2 million for the three and nine months ended September 30, 2021, respectively, or $0.17 and $0.34 per diluted share, respectively Funds From Operations per diluted share increased 30% and decreased 1% year-over-year for the three and nine months ended Septe

Regulation FD Disclosure

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 22, 2021 American Assets Trust, Inc. (Exact name of registrant as specified in its charter) Maryland 001-35030 27-3338708 (State or other jurisdiction of incorporation) (Com

AAT / American Assets Trust, Inc / American Assets Trust, Inc. - SC 13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 7)* American Assets Trust, Inc. (Name of Issuer) Common Stock, par value $0.01 per share (Title of Class of Securities) 024013 10 4 (CUSIP Number) Ernest S. Rady Ernest Rady Trust U/D/T March 10, 1983 3420 Carmel Mountain Road, Suite 100 San Diego, Californi

American Assets Trust, Inc. Acquires Corporate Campus East III in Bellevue, Washington

American Assets Trust, Inc. Acquires Corporate Campus East III in Bellevue, Washington Company Release ? 9/10/21 SAN DIEGO ?American Assets Trust, Inc. (NYSE: AAT) (the ?Company?) has successfully closed on the acquisition of Corporate Campus East III, consisting of an approximately 161,000 square foot, multi-tenant office campus located just off the interstate 405 and 520 freeway interchange, les

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 10, 2021 American Assets Trust, Inc. American Assets Trust, L.P. (Exact name of registrant as specified in its charter) Maryland 001-35030 27-3338708 (American Assets Trust,

First Amendment to Agreement of Purchase and Sale and Joint Escrow Instructions between KW Fund V - Eastgate, LLC, as Seller, and AAT Eastgate, LLC, as Buyer, dated June 28, 2021

FIRST AMENDMENT TO AGREEMENT OF PURCHASE AND SALE AND JOINT ESCROW INSTRUCTIONS This FIRST AMENDMENT TO AGREEMENT OF PURCHASE AND SALE AND JOINT ESCROW INSTRUCTIONS (this "First Amendment") is entered into as of June 28, 2021, by and between AAT EASTGATE, LLC, a Delaware limited liability company ("Buyer"), and KW FUND V ? EASTGATE, LLC, a Delaware limited liability company ("Seller").

Agreement of Purchase and Sale and Joint Escrow Instructions

AGREEMENT OF PURCHASE AND SALE AND JOINT ESCROW INSTRUCTIONS (Eastgate) SUMMARY AND DEFINITION OF BASIC TERMS This Agreement of Purchase and Sale and Joint Escrow Instructions (the "Agreement"), dated as of the Effective Date set forth in Section 1 of the Summary of Basic Terms, below, is made by and between AAT EASTGATE, LLC, a Delaware limited liability company ("Buyer"), and KW FUND V ? EASTGATE, LLC, a Delaware limited liability company ("Seller").

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q

Table of Contents 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 30, 2021 or ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to AMERICAN ASSETS TRUST, INC. (Exact Na

American Assets Trust, Inc.'s Portfolio is concentrated in high-barrier-to-entry markets with favorable supply/demand characteristics Office Retail Multifamily Mixed-Use Market Square Feet Square Feet Units Square Feet Suites San Diego 1,550,673 1,32

SECOND QUARTER 2021 Supplemental Information Investor and Media Contact American Assets Trust, Inc.

Regulation FD Disclosure, 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): July 27, 2021 American Assets Trust, Inc. (Exact name of registrant as specified in its charter) Maryland 001-35030 27-3338708 (State or other jurisdiction of incorporation) (Commissi

Three Months Ended (1)

American Assets Trust, Inc. Reports Second Quarter 2021 Financial Results Net income available to common stockholders of $8.9 million and $10.2 million for the three and six months ended June 30, 2021, respectively, or $0.15 and $0.17 per diluted share, respectively Funds From Operations per diluted share increased 6% and decreased 14% year-over-year for the three and six months ended June 30, 202

Regulation FD Disclosure, Financial Statements and Exhibits, Completion of Acquisition or Disposition of Assets

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 7, 2021 American Assets Trust, Inc. American Assets Trust, L.P. (Exact name of registrant as specified in its charter) Maryland 001-35030 27-3338708 (American Assets Trust, Inc.)

American Assets Trust, Inc. Acquires Eastgate Office Park in Bellevue, Washington

American Assets Trust, Inc. Acquires Eastgate Office Park in Bellevue, Washington Company Release ? 7/7/21 SAN DIEGO ?American Assets Trust, Inc. (NYSE: AAT) (the ?Company?) has successfully closed on the acquisition of Eastgate Office Park, consisting of an approximately 280,000 square foot, multi-tenant office campus in the premier I-90 corridor submarket of Bellevue, Washington. Eastgate Office

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): June 8, 2021 American Assets Trust, Inc. (Exact name of registrant as specified in its charter) Maryland 001-35030 27-3338708 (State or other jurisdiction of incorporation) (Commissio

Regulation FD Disclosure, Entry into a Material Definitive Agreement, 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 24, 2021 American Assets Trust, Inc. American Assets Trust, L.P. (Exact name of registrant as specified in its charter) Maryland 001-35030 27-3338708 (American Assets Trust, Inc.)

American Assets Trust, Inc. Enters into Agreement to Acquire Eastgate Office Park in Bellevue, Washington

American Assets Trust, Inc. Enters into Agreement to Acquire Eastgate Office Park in Bellevue, Washington Company Release ? 5/24/21 SAN DIEGO ? American Assets Trust, Inc. (NYSE: AAT) (the ?Company?) has entered into an agreement to acquire Eastgate Office Park, consisting of an approximately 280,000 square foot, multi-tenant office campus in the premier I-90 corridor submarket of Bellevue, Washin

Quarterly Report - 10-Q

Table of Contents 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 31, 2021 or ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to AMERICAN ASSETS TRUST, INC. (Exact N

March 31, 2021 December 31, 2020 March 31, 2020 Total Portfolio Office 91.4% 93.0% 94.3% Retail 90.8% 90.7% 95.2% Multifamily 91.9% 86.2% 93.0% Mixed-Use: Retail 88.2% 89.2% 98.5% Hotel 47.5% 51.3% 75.4% Same-Store Portfolio Office (1) 93.7% 95.3% 96

American Assets Trust, Inc. Reports First Quarter 2021 Financial Results and COVID-19 Operational Update Net income available to common stockholders of $1.3 million for the first quarter, or $0.02 per diluted share Funds From Operations per diluted share decreased 32% year-over-year for the first quarter, to $0.38 per diluted share Collected 93% to date of rents that were due during the first quar

American Assets Trust, Inc.'s Portfolio is concentrated in high-barrier-to-entry markets with favorable supply/demand characteristics

FIRST QUARTER 2021 Supplemental Information Investor and Media Contact American Assets Trust, Inc.

Regulation FD Disclosure, 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 27, 2021 American Assets Trust, Inc. (Exact name of registrant as specified in its charter) Maryland 001-35030 27-3338708 (State or other jurisdiction of incorporation) (Commiss

Regulation FD Disclosure

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 20, 2021 American Assets Trust, Inc. (Exact name of registrant as specified in its charter) Maryland 001-35030 27-3338708 (State or other jurisdiction of incorporation) (Commiss

- DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ? 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)(2)) ? Definitive Proxy State

- 2021 PROXY

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ? 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)(2)) ? Definitive Proxy State

Regulation FD Disclosure

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 24, 2021 American Assets Trust, Inc. (Exact name of registrant as specified in its charter) Maryland 001-35030 27-3338708 (State or other jurisdiction of incorporation) (Comm

Description of Securities

DESCRIPTION OF THE REGISTRANT?S SECURITIES REGISTERED PURSUANT TO SECTION 12 OF THE SECURITIES EXCHANGE ACT OF 1934 References to ?we,? ?us,? ?our,? or ?the company? mean, unless the context indicates otherwise, American Assets Trust, 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 31, 2020 or ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to AMERICAN ASSETS TRUST, INC. (Exact Name of Registrant as Sp

American Assets Trust, Inc. Restricted Stock Award Agreement (Performance Vesting)

Executive Version (12-20) AMERICAN ASSETS TRUST, INC. 2011 AMENDED AND RESTATED EQUITY INCENTIVE AWARD PLAN RESTRICTED STOCK AWARD GRANT NOTICE AND RESTRICTED STOCK AWARD AGREEMENT American Assets Trust, Inc., a Maryland corporation (the ?Company?), pursuant to its Amended and Restated 2011 Equity Incentive Award Plan (as amended, the ?Plan?), hereby grants to the individual listed below (?Partici

List of Subsidiaries of American Assets Trust, Inc.

Exhibit 21.1 Subsidiaries of American Assets Trust, Inc. The following list sets forth American Assets Trust, Inc.'s subsidiaries as of December 31, 2020. Name Jurisdiction of Formation/Incorporation AAT CC Bellevue, LLC Delaware AAT Geary Marketplace, LLC Delaware AAT Lloyd District, LLC Delaware AAT La Jolla Commons, LLC Delaware AAT La Jolla Commons 3, LLC Delaware AAT One Beach, LLC Delaware A

Subsidiary Guarantors and Issuers of Guaranteed Securities

Exhibit 22.1 The following subsidiary of American Assets Trust, Inc. (?AAT?) is the issuer of debt securities under the Indenture, dated January 26, 2021, by and among AAT, as parent guarantor, and the subsidiary listed below. Subsidiary Registrant Issuer American Assets Trust, L.P. Issuer

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 11)*

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 11)* Name of issuer: American Assets Trust Inc. Title of Class of Securities: REIT CUSIP Number: 024013104 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: ☒

December 31, 2020 September 30, 2020 December 31, 2019 Total Portfolio Office 93.0% 93.8% 95.0% Retail 90.7% 95.0% 97.8% Multifamily 86.2% 87.5% 92.8% Mixed-Use: Retail 89.2% 87.8% 97.9% Hotel 51.3% 52.8% 91.7% Same-Store Portfolio Office (1) 95.3% 9

American Assets Trust, Inc. Reports Fourth Quarter and Year-End 2020 Financial Results and COVID-19 Operational Update Net income available to common stockholders of $2.9 million and $27.7 million for the three months and year ended December 31, 2020, respectively, or $0.05 and $0.46 per diluted share, respectively Funds From Operations per diluted share decreased 27% and 14% year-over-year for th

Regulation FD Disclosure, 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 9, 2021 American Assets Trust, Inc. (Exact name of registrant as specified in its charter) Maryland 001-35030 27-3338708 (State or other jurisdiction of incorporation) (Commi

American Assets Trust, Inc.'s Portfolio is concentrated in high-barrier-to-entry markets with favorable supply/demand characteristics

FOURTH QUARTER 2020 Supplemental Information Investor and Media Contact American Assets Trust, Inc.

Current Report

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 26, 2021 American Assets Trust, Inc. American Assets Trust, L.P. (Exact name of registrant as specified in its charter) Maryland (American Assets Trust, Inc.) Maryland (Americ

Officers’ Certificate, dated January 26, 2021, pursuant to Sections 102, 201, 301 and 303 of the Indenture dated January 26, 2021, among American Assets Trust, L.P., as issuer, American Assets Trust, Inc., as guarantor, and U.S. Bank National Association, as trustee, establishing a series of securities entitled “3.375% Senior Notes due 2031,” including the form of 3.375% Senior Note due 2031 and the form of related guarantee.

EX-4.2 Exhibit 4.2 Officers’ Certificate Pursuant to Sections 102, 201, 301 and 303 of the Indenture Dated: January 26, 2021 The undersigned, Ernest S. Rady, President and Chief Executive Officer, and Robert F. Barton, Executive Vice President and Chief Financial Officer, of American Assets Trust, Inc., a Maryland corporation (“AAT”), the guarantor (the “Guarantor”) of the Securities referred to b

Indenture, dated January 26, 2021, by and among American Assets Trust, L.P., as issuer, American Assets Trust, Inc., as guarantor, and U.S. Bank National Association, as trustee

EX-4.1 Exhibit 4.1 AMERICAN ASSETS TRUST, L.P., as Company AMERICAN ASSETS TRUST, INC., as Guarantor INDENTURE DATED AS OF JANUARY 26, 2021 U.S. BANK NATIONAL ASSOCIATION, as Trustee TABLE OF CONTENTS Page Article One Definitions and Other Provisions of General Application 3 Section 101 Definitions 3 Section 102 Compliance Certificates and Opinions 12 Section 103 Form of Documents Delivered to Tru

AMERICAN ASSETS TRUST, INC. ANNOUNCES PRICING OF $500 MILLION OF 3.375% SENIOR UNSECURED NOTES DUE 2031

EX-99.1 Exhibit 99.1 AMERICAN ASSETS TRUST, INC. ANNOUNCES PRICING OF $500 MILLION OF 3.375% SENIOR UNSECURED NOTES DUE 2031 SAN DIEGO, Jan. 14, 2021 (GLOBE NEWSWIRE) — American Assets Trust, Inc. (NYSE: AAT) (the “company”) today announced that its operating partnership, American Assets Trust, L.P. (the “operating partnership”), has priced a public offering of $500 million aggregate principal amo

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 14, 2021 American Assets Trust, Inc. American Assets Trust, L.P. (Exact name of registrant as specified in its charter) Maryland (American Assets Trust, Inc.) Maryland (Americ

Underwriting Agreement, dated January 14, 2021.

EX-1.1 Exhibit 1.1 Execution Version $500,000,000 AMERICAN ASSETS TRUST, L.P. 3.375% Senior Notes due 2031 UNDERWRITING AGREEMENT January 14, 2021 January 14, 2021 Wells Fargo Securities, LLC BofA Securities, Inc. Morgan Stanley & Co. LLC c/o Wells Fargo Securities, LLC 550 South Tryon Street, 5th Floor Charlotte, North Carolina 28202 c/o BofA Securities, Inc. One Bryant Park New York, New York 10

CALCULATION OF REGISTRATION FEE Title of Each Class of Securities to be Registered Amount to be Registered Proposed Maximum Offering Price Per Security Proposed Maximum Aggregate Offering Price Amount of Registration Fee American Assets Trust, L.P. 3

424B2 Table of Contents Filed Pursuant To Rule 424(b)(2) Under the Securities Act of 1933 Registration No.

American Assets Trust, Inc. 22,178,095 Shares of Common Stock

424B7 Table of Contents Filed Pursuant to Rule 424(b)(7) Registration No. 333-252097 PROSPECTUS SUPPLEMENT (To Prospectus dated January 14, 2021) American Assets Trust, Inc. 22,178,095 Shares of Common Stock This prospectus supplement supplements our prospectus dated January 14, 2021 and relates to (1) the possible issuance of shares of common stock of American Assets Trust, Inc., a Maryland corpo

Subsidiary Guarantors and Issuers of Guaranteed Securities.(3)

EX-22.1 Exhibit 22.1 The following subsidiary of American Assets Trust, Inc. (“AAT”) will be the issuer of debt securities under the indenture to be entered into among AAT, as parent guarantor, and the subsidiary listed below. Subsidiary Registrant Issuer American Assets Trust, L.P. Issuer

- S-3ASR

S-3ASR Table of Contents As filed with the Securities and Exchange Commission on January 14, 2021 Registration No.

Form of Indenture for American Assets Trust, L.P.

EX-4.3 Exhibit 4.3 AMERICAN ASSETS TRUST, L.P., as Company AMERICAN ASSETS TRUST, INC., as Guarantor INDENTURE DATED AS OF , 20 U.S. BANK NATIONAL ASSOCIATION, as Trustee TABLE OF CONTENTS Page Article One Definitions and Other Provisions of General Application 3 Section 101 Definitions 3 Section 102 Compliance Certificates and Opinions 12 Section 103 Form of Documents Delivered to Trustee 13 Sect

- S-3ASR

S-3ASR Table of Contents As filed with the Securities and Exchange Commission on January 14, 2021 Registration No.

PRICING TERM SHEET

FWP PRICING TERM SHEET Issuer Free Writing Prospectus Filed Pursuant to Rule 433 Registration Nos.

Statement of Eligibility on Form T-1 under the Trust Indenture Act of 1939, as amended, of U.S. Bank, National Association, as trustee under the indenture filed as Exhibit 4.3 above.(3)

EX-25.1 Exhibit 25.1 SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM T-1 STATEMENT OF ELIGIBILITY UNDER THE TRUST INDENTURE ACT OF 1939 OF A CORPORATION DESIGNATED TO ACT AS TRUSTEE ☐ Check if an Application to Determine Eligibility of a Trustee Pursuant to Section 305(b)(2) U.S. BANK NATIONAL ASSOCIATION (Exact name of Trustee as specified in its charter) 31-0841368 I.R.S. Employer

CALCULATION OF REGISTRATION FEE Title Of Securities Being Registered Number of Shares to be Registered(1) Proposed Maximum Offering Price Per Share(2) Proposed Maximum Aggregate Offering Price(3) Amount Of Registration Fee(4) Common Stock, par value

424B7 Table of Contents Filed Pursuant to Rule 424(b)(7) Registration No. 333-252097 CALCULATION OF REGISTRATION FEE Title Of Securities Being Registered Number of Shares to be Registered(1) Proposed Maximum Offering Price Per Share(2) Proposed Maximum Aggregate Offering Price(3) Amount Of Registration Fee(4) Common Stock, par value $.01 per share 22,178,095(1) $27.95(2) $619,877,755.25(3) $—(4) (

FEDERAL INCOME TAX CONSIDERATIONS

EX-99.1 Exhibit 99.1 FEDERAL INCOME TAX CONSIDERATIONS The following is a general summary of certain material U.S. federal income tax considerations regarding our election to be taxed as a real estate investment trust (“REIT”) and the purchase, ownership and disposition of our capital stock and debt securities of our operating partnership. Supplemental U.S. federal income tax considerations releva

Subject to completion, dated January 14, 2021 PRELIMINARY PROSPECTUS SUPPLEMENT (To Prospectus dated January 14, 2021) American Assets Trust, L.P. % Senior Notes due 20 Guaranteed by American Assets Trust, Inc.

424B2 Table of Contents Filed Pursuant to Rule 424(b)(2) Registration No. 333-252096-01 333-252096 This preliminary prospectus supplement relates to an effective registration statement under the Securities Act of 1933, as amended, but is not complete and may be changed. This preliminary prospectus supplement and the accompanying prospectus are not an offer to sell these securities and are not soli

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 14, 2021 American Assets Trust, Inc. American Assets Trust, L.P. (Exact name of registrant as specified in its charter) Maryland (American Assets Trust, Inc.) Maryland (Americ

Financial Statements and Exhibits, Results of Operations and Financial Condition, 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): January 8, 2021 American Assets Trust, Inc. American Assets Trust, L.P. (Exact name of registrant as specified in its charter) Maryland (American Assets Trust, Inc.) Maryland (America

Forward-Looking Statements This presentation contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. Such forward-looking sta

EX-99.1 Exhibit 99.1 Collections Update January 2021Exhibit 99.1 Collections Update January 2021 Forward-Looking Statements This presentation contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. Such forward-looking statements relate to, without limitation, our future eco

Regulation FD Disclosure - FORM 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): November 16, 2020 American Assets Trust, Inc. (Exact name of registrant as specified in its charter) Maryland 001-35030 27-3338708 (State or other jurisdiction of incorporation) (Comm

Quarterly Report - 10-Q

Table of Contents 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, 2020 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to AMERICAN ASSETS TRUST, INC. (Exa

September 30, 2020 June 30, 2020 September 30, 2019 Total Portfolio Office 93.8% 94.4% 94.7% Retail 95.0% 94.7% 98.0% Multifamily 87.5% 85.1% 90.5% Mixed-Use: Retail 87.8% 95.7% 98.0% Hotel 52.8% 46.4% 92.1% Same-Store Portfolio Office (1) 96.1% 96.4

American Assets Trust, Inc. Reports Third Quarter 2020 Financial Results and COVID-19 Operational Update Net income available to common stockholders of $5.0 million and $24.8 million for the three and nine months ended September 30, 2020, respectively, or $0.08 and $0.41 per diluted share, respectively Funds From Operations per diluted share decreased 23% and 9% year-over-year for the three and ni

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition - FORM 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 27, 2020 American Assets Trust, Inc. (Exact name of registrant as specified in its charter) Maryland 001-35030 27-3338708 (State or other jurisdiction of incorporation) (Commi

American Assets Trust, Inc.'s Portfolio is concentrated in high-barrier-to-entry markets with favorable supply/demand characteristics

THIRD QUARTER 2020 Supplemental Information Investor and Media Contact American Assets Trust, Inc.

Regulation FD Disclosure - FORM 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): September 15, 2020 American Assets Trust, Inc. (Exact name of registrant as specified in its charter) Maryland 001-35030 27-3338708 (State or other jurisdiction of incorporation) (Com

Quarterly Report - 10-Q

Table of Contents 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 30, 2020 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to AMERICAN ASSETS TRUST, INC. (Exact Na

Regulation FD Disclosure, 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, 2020 American Assets Trust, Inc. (Exact name of registrant as specified in its charter) Maryland 001-35030 27-3338708 (State or other jurisdiction of incorporation) (Commissi

June 30, 2020 March 31, 2020 June 30, 2019 Total Portfolio Office 94.4% 94.3% 93.7% Retail 94.7% 95.2% 97.5% Multifamily 85.1% 93.0% 92.6% Mixed-Use: Retail 95.7% 98.5% 98.2% Hotel 46.4% 75.4% 91.7% Same-Store Portfolio Office (1) 95.9% 93.1% 92.9% R

American Assets Trust, Inc. Reports Second Quarter 2020 Financial Results and COVID-19 Operational Update Net income available to common stockholders of $7.7 million and $19.7 million for the three and six months ended June 30, 2020, respectively, or $0.13 and $0.33 per diluted share, respectively Funds From Operations per diluted share decreased 6% and 2% year-over-year for the three and six mont

American Assets Trust, Inc.'s Portfolio is concentrated in high-barrier-to-entry markets with favorable supply/demand characteristics

SECOND QUARTER 2020 Supplemental Information Investor and Media Contact American Assets Trust, Inc.

Regulation FD Disclosure

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 9, 2020 American Assets Trust, Inc. (Exact name of registrant as specified in its charter) Maryland 001-35030 27-3338708 (State or other jurisdiction of incorporation) (Commissio

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): June 9, 2020 American Assets Trust, Inc. (Exact name of registrant as specified in its charter) Maryland 001-35030 27-3338708 (State or other jurisdiction of incorporation) (Commissio

Regulation FD Disclosure

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 3, 2020 American Assets Trust, Inc. (Exact name of registrant as specified in its charter) Maryland 001-35030 27-3338708 (State or other jurisdiction of incorporation) (Commissio

Quarterly Report - 10-Q

Table of Contents 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 31, 2020 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to AMERICAN ASSETS TRUST, INC. (Exact N

American Assets Trust, Inc.'s Portfolio is concentrated in high-barrier-to-entry markets with favorable supply/demand characteristics

FIRST QUARTER 2020 Supplemental Information Investor and Media Contact American Assets Trust, Inc.

March 31, 2020 December 31, 2019 March 31, 2019 Total Portfolio Office 94.3% 95.0% 92.3% Retail 95.2% 97.8% 97.1% Multifamily 93.0% 92.8% 93.9% Mixed-Use: Retail 98.5% 97.9% 98.2% Hotel 75.4% 91.7% 91.8% Same-Store Portfolio Office (1) 95.7% 95.7% 92

American Assets Trust, Inc. Reports First Quarter 2020 Financial Results and COVID-19 Operational Update Net income available to common stockholders of $12.1 million for the first quarter, or $0.20 per diluted share Funds From Operations per diluted share remained relatively unchanged year-over-year for the first quarter at $0.56 per diluted share Same-store cash NOI increased 8.6% year-over-year

Regulation FD Disclosure, 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, 2020 American Assets Trust, Inc. (Exact name of registrant as specified in its charter) Maryland 001-35030 27-3338708 (State or other jurisdiction of incorporation) (Commiss

Schedule 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 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)(2)) ý Definitive Proxy State

AAT / American Assets Trust Inc DEFA14A - - NOTICE & ACCESS MATERIAL 2020

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 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)(2)) ¨ Definitive Proxy State

Regulation FD Disclosure

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 3, 2020 American Assets Trust, Inc. (Exact name of registrant as specified in its charter) Maryland 001-35030 27-3338708 (State or other jurisdiction of incorporation) (Commissi

American Assets Trust, Inc. and American Assets Trust, L.P. Amended and Restated Incentive Bonus Plan, effective as of December 5, 2019

EX-10.12 4 aatamendedandrestatedi.htm AMENDED AND RESTATED INCENTIVE BONUS PLAN,EFFECTIVE AS OF DECEMBER 5, 2019 AMERICAN ASSETS TRUST, INC. AMERICAN ASSETS TRUST, L.P. AMENDED AND RESTATED INCENTIVE BONUS PLAN This Amended and Restated Incentive Bonus Plan (the “Plan”) is intended to provide an additional incentive for employees of American Assets Trust, Inc. (the “REIT”), a Maryland corporation,

List of Subsidiaries of American Assets Trust, Inc.

Exhibit 21.1 Subsidiaries of American Assets Trust, Inc. The following list sets forth American Assets Trust, Inc.'s subsidiaries as of December 31, 2019. Name Jurisdiction of Formation/Incorporation AAT CC Bellevue, LLC Delaware AAT Geary Marketplace, LLC Delaware AAT Lloyd District, LLC Delaware AAT La Jolla Commons, LLC Delaware AAT One Beach, LLC Delaware AAT Oregon Office I, LLC Delaware AAT

Description of Securities

DESCRIPTION OF THE REGISTRANT’S SECURITIES REGISTERED PURSUANT TO SECTION 12 OF THE SECURITIES EXCHANGE ACT OF 1934 References to “we,” “us,” “our,” or “the company” mean, unless the context indicates otherwise, American Assets Trust, 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 31, 2019 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to AMERICAN ASSETS TRUST, INC. (Exact Name of Registrant as Sp

Form of American Assets Trust, Inc. Restricted Stock Award Agreement (Performance Vesting)

Executive Version (12-19) AMERICAN ASSETS TRUST, INC. 2011 EQUITY INCENTIVE AWARD PLAN RESTRICTED STOCK AWARD GRANT NOTICE AND RESTRICTED STOCK AWARD AGREEMENT American Assets Trust, Inc., a Maryland corporation (the “Company”), pursuant to its 2011 Equity Incentive Award Plan (the “Plan”), hereby grants to the individual listed below (“Participant”) the number of shares of the Company’s Stock (th

Regulation FD Disclosure, 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 11, 2020 American Assets Trust, Inc. (Exact name of registrant as specified in its charter) Maryland 001-35030 27-3338708 (State or other jurisdiction of incorporation) (Comm

AAT / American Assets Trust Inc / 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.: 10)* Name of issuer: American Assets Trust Inc Title of Class of Securities: REIT CUSIP Number: 024013104 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: ☒ 

American Assets Trust, Inc.'s Portfolio is concentrated in high-barrier-to-entry markets with favorable supply/demand characteristics

EX-99.2 3 a4q19supplemental.htm SUPPLEMENTAL INFORMATION FOURTH QUARTER 2019 Supplemental Information Investor and Media Contact American Assets Trust, Inc. Robert F. Barton Executive Vice President and Chief Financial Officer 858-350-2607 American Assets Trust, Inc.'s Portfolio is concentrated in high-barrier-to-entry markets with favorable supply/demand characteristics Office Retail Multifamily

December 31, 2019 September 30, 2019 December 31, 2018 Total Portfolio Office 95.0% 94.7% 90.9% Retail 97.8% 98.0% 93.9% Multifamily 92.8% 90.5% 93.6% Mixed-Use: Retail 97.9% 98.0% 96.1% Hotel 91.7% 92.1% 93.0% Same-Store Portfolio Office (1) 93.9% 9

American Assets Trust, Inc. Reports Fourth Quarter and Year-End 2019 Financial Results Net income available to common stockholders of $12.8 million and $45.7 million for the three months and year ended December 31, 2019, respectively, or $0.22 and $0.84 per diluted share, respectively Funds From Operations per diluted share increased 19% and 5% year-over-year for the three months and year ended De

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): December 5, 2019 American Assets Trust, Inc. (Exact name of registrant as specified in its charter) Maryland 001-35030 27-3338708 (State or other jurisdiction of incorporation) (Commi

Quarterly Report - 10-Q

Table of Contents 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, 2019 or ☐TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to AMERICAN ASSETS TRUST, INC. (Exact

Regulation FD Disclosure, 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): October 24, 2019 American Assets Trust, Inc. (Exact name of registrant as specified in its charter) Maryland 001-35030 27-3338708 (State or other jurisdiction of incorporation) (Commi

American Assets Trust, Inc.'s Portfolio is concentrated in high-barrier-to-entry markets with favorable supply/demand characteristics

THIRD QUARTER 2019 Supplemental Information Investor and Media Contact American Assets Trust, Inc.

September 30, 2019 June 30, 2019 September 30, 2018 Total Portfolio Retail 98.0% 97.5% 98.5% Office 94.7% 93.7% 91.4% Multifamily 90.5% 92.6% 92.3% Mixed-Use: Retail 98.0% 98.2% 95.9% Hotel 92.1% 91.7% 93.6% Same-Store Portfolio Retail (1) 97.7% 97.1

EX-99.1 2 a3q19earningsrelease.htm EARNINGS RELEASE American Assets Trust, Inc. Reports Third Quarter 2019 Financial Results Net income available to common stockholders of $12.9 million and $32.9 million for the three and nine months ended September 30, 2019, respectively, or $0.22 and $0.63 per diluted share, respectively Funds From Operations per diluted share increased 8% and 1% year-over-year

Regulation FD Disclosure

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 11, 2019 American Assets Trust, Inc. (Exact name of registrant as specified in its charter) Maryland 001-35030 27-3338708 (State or other jurisdiction of incorporation) (Com

Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K/A 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 20, 2019 American Assets Trust, Inc. American Assets Trust, L.P. (Exact name of registrant as specified in its charter) Maryland 001-35030 27-3338708 (American Assets Trust, In

Contract for Purchase and Sale between HSPF La Jolla Commons I Investors LLC, HSPF La Jolla Commons II Investors LLC and HSPF La Jolla Commons III Investors LLC, collectively as Seller, and the Company, as Purchaser, dated June 10, 2019

CONTRACT OF PURCHASE AND SALE BETWEEN AAT LA JOLLA COMMONS, LLC, PURCHASER AND HSPF LA JOLLA COMMONS I INVESTORS LLC, HSPF LA JOLLA COMMONS II INVESTORS LLC AND HSPF LA JOLLA COMMONS III INVESTORS LLC, COLLECTIVELY, SELLER June 10, 2019 TABLE OF CONTENTS 1.

Quarterly Report - 10-Q

Table of Contents 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 30, 2019 or ☐TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to AMERICAN ASSETS TRUST, INC. (Exact Name

Regulation FD Disclosure, 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): July 30, 2019 American Assets Trust, Inc. American Assets Trust, L.P. (Exact name of registrant as specified in its charter) Maryland (American Assets Trust, Inc.) Maryland (American

Note Purchase Agreement, dated as of July 30, 2019, by and among

American Assets Trust, L.P. $150,000,000 3.91% Senior Guaranteed Notes, Series G, due July 30, 2030 Note Purchase Agreement Dated as of July 30, 2019 TABLE OF CONTENTS Section Heading Page SECTION 1. AUTHORIZATION OF NOTES 1 Section 1.1. Authorization of Notes 1 Section 1.2. Affiliate Guaranty 1 SECTION 2. SALE AND PURCHASE OF NOTES 1 SECTION 3. CLOSING 2 SECTION 4. CONDITIONS TO CLOSING 2 Section

American Assets Trust, Inc. Announces Issuance of $150 Million of 3.91% Senior Guaranteed Notes, Series G, Due July 30, 2030

EX-99.1 3 aatpressrelease-npaseriesg.htm PRESS RELEASE American Assets Trust, Inc. Announces Issuance of $150 Million of 3.91% Senior Guaranteed Notes, Series G, Due July 30, 2030 Company Release – 7/30/19 SAN DIEGO – American Assets Trust, Inc. (NYSE:AAT) (the “Company”) and American Assets Trust, L.P. (the “Operating Partnership”) announced today the closing of a privately placed debt offering o

American Assets Trust, Inc.'s Portfolio is concentrated in high-barrier-to-entry markets with favorable supply/demand characteristics

EX-99.2 3 a2q19supplemental.htm SUPPLEMENTAL INFORMATION SECOND QUARTER 2019 Supplemental Information Investor and Media Contact American Assets Trust, Inc. Robert F. Barton Executive Vice President and Chief Financial Officer 858-350-2607 American Assets Trust, Inc.'s Portfolio is concentrated in high-barrier-to-entry markets with favorable supply/demand characteristics Retail Office Multifamily

June 30, 2019 March 31, 2019 June 30, 2018 Total Portfolio Retail 97.5% 97.1% 96.7% Office 93.7% 92.3% 93.8% Multifamily 92.6% 93.9% 93.9% Mixed-Use: Retail 98.2% 98.2% 95.9% Hotel 91.7% 91.8% 94.0% Same-Store Portfolio Retail (1) 97.1% 96.7% 97.9% O

EX-99.1 2 a2q19earningsrelease.htm EARNINGS RELEASE American Assets Trust, Inc. Reports Second Quarter 2019 Financial Results Net income available to common stockholders of $8.9 million and $20.0 million for the three and six months ended June 30, 2019, respectively, or $0.18 and $0.41 per diluted share, respectively Acquisition of La Jolla Commons in San Diego, California for $525.0 million, less

Regulation FD Disclosure, 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 30, 2019 American Assets Trust, Inc. (Exact name of registrant as specified in its charter) Maryland (State or other jurisdiction of incorporation) 001-35030 (Commission File No.

Regulation FD Disclosure

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 17, 2019 American Assets Trust, Inc. (Exact name of registrant as specified in its charter) Maryland (State or other jurisdiction of incorporation) 001-35030 (Commission File No.

American Assets Trust, Inc. Acquires the La Jolla Commons in San Diego, California

EX-99.1 2 aatpressrelease-closingljc.htm EXHIBIT 99.1 American Assets Trust, Inc. Acquires the La Jolla Commons in San Diego, California Company Release – 6/20/19 SAN DIEGO –American Assets Trust, Inc. (NYSE: AAT) (the “Company”) has successfully closed on the acquisition of La Jolla Commons, consisting of two trophy office towers, an entitled development parcel and two parking structures, located

Regulation FD Disclosure, Financial Statements and Exhibits, Completion of Acquisition or Disposition of Assets

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 20, 2019 American Assets Trust, Inc. American Assets Trust, L.P. (Exact name of registrant as specified in its charter) Maryland (American Assets Trust, Inc.) Maryland (American

AAT / American Assets Trust Inc / American Assets Trust, Inc. - SC 13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 6)* American Assets Trust, Inc. (Name of Issuer) Common Stock, par value $0.01 per share (Title of Class of Securities) 024013 10 4 (CUSIP Number) Ernest S. Rady Ernest Rady Trust U/D/T March 10, 1983 11455 El Camino Real, Suite 200 San Diego, California 921

Unregistered Sales of Equity Securities, 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): June 11, 2019 American Assets Trust, Inc. American Assets Trust, L.P. (Exact name of registrant as specified in its charter) Maryland (American Assets Trust, Inc.) Maryland (Ameri

Underwriting Agreement, dated June 11, 2019, by and among American Assets Trust, Inc., American Assets Trust, L.P. and Morgan Stanley & Co. LLC and Wells Fargo Securities, LLC, as representatives of the several underwriters named therein

EX-1.1 Exhibit 1.1 9,500,000 Shares AMERICAN ASSETS TRUST, INC. COMMON STOCK, PAR VALUE $0.01 PER SHARE UNDERWRITING AGREEMENT June 11, 2019 June 11, 2019 Morgan Stanley & Co. LLC Wells Fargo Securities, LLC c/o Morgan Stanley & Co. LLC 1585 Broadway New York, New York 10036 c/o Wells Fargo Securities, LLC 375 Park Avenue New York, NY 10152 Ladies and Gentlemen: American Assets Trust, Inc., a Mary