AtriCure, Inc.
US ˙ NasdaqGM ˙ US04963C2098

SecurityATRC / AtriCure, Inc.
InstitutionAlliancebernstein L.p.
Latest Disclosed Ownership3,394,036 shares
Ownership 7.20%
Alliancebernstein L.p. ownership in ATRC / AtriCure, Inc.

2024-02-14 - Alliancebernstein L.p. has filed an SC 13G/A form with the Securities and Exchange Commission (SEC) disclosing ownership of 3,394,036 shares of AtriCure, Inc. (US:ATRC). This represents 7.2 percent ownership of the company. In their previous filing dated 2023-02-14 , Alliancebernstein L.p. had reported owning 3,565,726 shares, indicating a decrease of -4.82 percent.

Institutional Ownership: 13D/G Filings

This table shows a history of the 13D/G filings made by the investor and/or investor group. Note that the share values in this table are not directly comparable to any numbers shown in the 13F table (if any).

File
Date		Effective
Date		Form Prev
Shares		 Latest
Shares		 ΔShares
(Percent)		 Ownership
(Percent)		 ΔOwnership
(Percent)
2024-02-14 2024-02-14 13G/A 3,565,726 3,394,036 -4.82 7.20 -6.49
2023-02-14 2023-02-14 13G/A 3,455,856 3,565,726 3.18 7.70 2.67
2022-02-14 2022-02-14 13G 3,455,856 7.50

Important Note: One of the primary uses of the 13D/G filings is to evaluate the ability of a firm to control a company (ie, the "beneficial ownership"). To that end, firms are required to report not just direct holdings in companies, but indirect holdings that they control. For investment firms, these indirect holdings can include shares in funds they manage, advisory accounts, and in the case of activist campaigns, pledged votes. Therefore, share counts listed in 13D/G filings can differ significantly than share counts listed in 13F filings.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F ATRICURE COM 04963C209 3,258,872 -304,710 -8.55 128,921 -8.55 0.0417
2026-02-17 2025-12-31 13F ATRICURE COM 04963C209 3,563,582 4,990 0.14 140,975 12.38 0.0445
2025-11-14 2025-09-30 13F ATRICURE COM 04963C209 3,558,592 -15,057 -0.42 125,440 7.11 0.0395
2025-08-14 2025-06-30 13F ATRICURE COM 04963C209 3,573,649 -103,200 -2.81 117,108 -1.27 0.0382
2025-05-15 2025-03-31 13F ATRICURE COM 04963C209 3,676,849 -158,600 -4.14 118,615 1.20 0.0429
2025-02-12 2024-12-31 13F ATRICURE COM 04963C209 3,835,449 -136,999 -3.45 117,211 5.23 0.0398
2024-11-14 2024-09-30 13F ATRICURE COM 04963C209 3,972,448 -232,531 -5.53 111,387 16.33 0.0374
2024-08-14 2024-06-30 13F ATRICURE COM 04963C209 4,204,979 552,238 15.12 95,747 -13.83 0.0334
2024-05-14 2024-03-31 13F ATRICURE COM 04963C209 3,652,741 258,705 7.62 111,116 -8.27 0.0393
2024-02-14 2023-12-31 13F ATRICURE COM 04963C209 3,394,036 166,827 5.17 121,133 -14.30 0.0466
2023-11-14 2023-09-30 13F ATRICURE COM 04963C209 3,227,209 17,220 0.54 141,352 -10.79 0.0601
2023-08-15 2023-06-30 13F ATRICURE COM 04963C209 3,209,989 86,485 2.77 158,445 22.38 0.0647
2023-05-15 2023-03-31 13F ATRICURE COM 04963C209 3,123,504 -442,222 -12.40 129,469 -18.18 0.0555
2023-02-15 2022-12-31 13F ATRICURE COM 04963C209 3,565,726 -483,097 -11.93 158,247 -0.04 0.0712
2022-11-15 2022-09-30 13F ATRICURE COM 04963C209 4,048,823 46,474 1.16 158,309 -3.20 0.0766
2022-08-15 2022-06-30 13F ATRICURE COM 04963C209 4,002,349 189,935 4.98 163,536 -34.68 0.0747
2022-05-13 2022-03-31 13F ATRICURE COM 04963C209 3,812,414 356,558 10.32 250,361 4.19 0.0966
2022-02-14 2021-12-31 13F ATRICURE COM 04963C209 3,455,856 544,296 18.69 240,286 18.66 0.0849
2021-11-10 2021-09-30 13F ATRICURE COM 04963C209 2,911,560 80,022 2.83 202,499 -9.85 0.0799
2021-07-30 2021-06-30 13F ATRICURE COM 04963C209 2,831,538 387,101 15.84 224,626 40.25 0.0902
2021-05-06 2021-03-31 13F ATRICURE COM 04963C209 2,444,437 2,381,637 3,792.42 160,160 4,481.24 0.0702
2021-02-08 2020-12-31 13F ATRICURE COM 04963C209 62,800 4,400 7.53 3,496 50.04 0.0016
2020-11-12 2020-09-30 13F ATRICURE COM 04963C209 58,400 -3,200 -5.19 2,330 -15.85 0.0013
2020-08-13 2020-06-30 13F ATRICURE COM 04963C209 61,600 3,700 6.39 2,769 42.37 0.0016
2020-05-14 2020-03-31 13F ATRICURE COM 04963C209 57,900 1,700 3.02 1,945 6.46 0.0014
2020-02-18 2019-12-31 13F ATRICURE COM 04963C209 56,200 0 0.00 1,827 30.31 0.0010
2019-11-14 2019-09-30 13F ATRICURE COM 04963C209 56,200 0 0.00 1,402 -16.40 0.0009
2019-08-14 2019-06-30 13F ATRICURE COM 04963C209 56,200 13,000 30.09 1,677 44.94 0.0010
2019-05-14 2019-03-31 13F ATRICURE COM 04963C209 43,200 0 0.00 1,157 -12.48 0.0008
2019-02-13 2018-12-31 13F ATRICURE COM 04963C209 43,200 0 0.00 1,322 -12.62 0.0010
2018-11-08 2018-09-30 13F ATRICURE COM 04963C209 43,200 0 0.00 1,513 29.43 0.0010
2018-08-13 2018-06-30 13F ATRICURE COM 04963C209 43,200 1,400 3.35 1,169 36.25 0.0008
2018-05-14 2018-03-31 13F ATRICURE COM 04963C209 41,800 0 0.00 858 12.60 0.0006
2018-02-13 2017-12-31 13F ATRICURE COM 04963C209 41,800 -2,900 -6.49 762 -23.80 0.0005
2017-11-13 2017-09-30 13F ATRICURE COM 04963C209 44,700 0 0.00 1,000 -7.75 0.0007
2017-08-10 2017-06-30 13F ATRICURE COM 04963C209 44,700 17,200 62.55 1,084 105.69 0.0008
2017-05-11 2017-03-31 13F ATRICURE COM 04963C209 27,500 -6,300 -18.64 527 -20.27 0.0004
2017-02-13 2016-12-31 13F ATRICURE COM 04963C209 33,800 0 0.00 661 23.55 0.0006
2016-11-10 2016-09-30 13F ATRICURE COM 04963C209 33,800 0 0.00 535 11.92 0.0005
2016-08-11 2016-06-30 13F ATRICURE COM 04963C209 33,800 0 0.00 478 -15.99 0.0004
2016-05-13 2016-03-31 13F ATRICURE COM 04963C209 33,800 0 0.00 569 -24.93 0.0005
2016-02-16 2015-12-31 13F/A-1 ATRICURE COM 04963C209 33,800 -2,617 -7.19 758 -5.01 0.0006
2016-02-12 2015-12-31 13F ATRICURE COM 04963C209 33,800 741
2015-11-13 2015-09-30 13F ATRICURE COM 04963C209 36,417 2,617 7.74 798 -4.20 0.0007
2015-08-14 2015-06-30 13F ATRICURE COM 04963C209 33,800 0 0.00 833 20.20 0.0007
2015-05-13 2015-03-31 13F ATRICURE COM 04963C209 33,800 0 0.00 693 2.67 0.0006
2015-02-13 2014-12-31 13F ATRICURE COM 04963C209 33,800 19,100 129.93 675 212.50 0.0006
2014-11-13 2014-09-30 13F ATRICURE COM 04963C209 14,700 -1,700 -10.37 216 -28.24 0.0002
2014-08-13 2014-06-30 13F ATRICURE COM 04963C209 16,400 3,349 25.66 301 22.86 0.0003
2014-05-13 2014-03-31 13F ATRICURE COM 04963C209 13,051 13,000 25,490.20 245 24,400.00 0.0002
2014-02-13 2013-12-31 13F ATRICURE COM 04963C209 51 -3,100 -98.38 1 -97.14 0.0000
2013-11-14 2013-09-30 13F ATRICURE COM 04963C209 3,151 -972 -23.58 35 -10.26 0.0000
2013-08-13 2013-06-30 13F ATRICURE COM 04963C209 4,123 4,123 39 0.0000
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.