AtriCure, Inc.
US ˙ NasdaqGM ˙ US04963C2098

SecurityATRC / AtriCure, Inc.
InstitutionNeuberger Berman Group LLC
Latest Disclosed Ownership1,050,282 shares
Latest Disclosed Value $ 29,954,828
Neuberger Berman Group LLC reports 3.32% decrease in ownership of ATRC / AtriCure, Inc.

On May 14, 2026 - Neuberger Berman Group LLC filed a 13F-HR form disclosing ownership of 1,050,282 shares of AtriCure, Inc. (US:ATRC) valued at $29,964,545 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 1,086,326 shares of AtriCure, Inc.. This represents a change in shares of -3.32% during the quarter. The current value of the position is $28,462,642 USD.

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.

Upgrade to unlock premium data and export to Excel .

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)
2026-05-14 2026-03-31 13F ATRICURE Common 04963C209 1,050,282 -36,044 -3.32 29,955 -30.34 0.0117
2026-02-13 2025-12-31 13F ATRICURE Common 04963C209 1,086,326 -104,785 -8.80 42,999 2.45 0.0320
2025-11-12 2025-09-30 13F ATRICURE Common 04963C209 1,191,111 1,372 0.12 41,972 7.71 0.0307
2025-08-25 2025-06-30 13F/A-1 ATRICURE Common 04963C209 1,189,739 3,674 0.31 38,969 1.57 0.0300
2025-08-13 2025-06-30 13F ATRICURE Common 04963C209 1,189,739 3,674 38,969 0.0155
2025-05-13 2025-03-31 13F ATRICURE Common 04963C209 1,186,065 246,877 26.29 38,365 33.72 0.0321
2025-02-13 2024-12-31 13F ATRICURE Common 04963C209 939,188 -2,947 -0.31 28,690 8.58 0.0228
2024-11-14 2024-09-30 13F ATRICURE Common 04963C209 942,135 73,698 8.49 26,423 33.62 0.0206
2024-11-14 2024-06-30 13F/A-1 ATRICURE Common 04963C209 868,437 80,464 10.21 19,774 -17.47 0.0162
2024-08-13 2024-06-30 13F ATRICURE Common 04963C209 868,437 80,464 19,774 0.0162
2024-11-14 2024-03-31 13F/A-1 ATRICURE Common 04963C209 787,973 28,752 3.79 23,960 -11.69 0.0198
2024-05-13 2024-03-31 13F ATRICURE Common 04963C209 787,973 28,752 23,960 0.0198
2024-11-14 2023-12-31 13F/A-2 ATRICURE Common 04963C209 759,221 -4,796 -0.63 27,130 -18.94 0.0237
2024-02-09 2023-12-31 13F ATRICURE Common 04963C209 759,221 -4,796 27,130 0.0237
2023-11-14 2023-09-30 13F ATRICURE Common 04963C209 764,017 3,276 0.43 33,469 -10.89 0.0305
2023-08-11 2023-06-30 13F ATRICURE Common 04963C209 760,741 7,072 0.94 37,561 20.29 0.0336
2023-05-12 2023-03-31 13F ATRICURE Common 04963C209 753,669 204,175 37.16 31,225 28.03 0.0290
2023-02-13 2022-12-31 13F ATRICURE Common 04963C209 549,494 7,008 1.29 24,389 14.90 0.0239
2022-11-15 2022-09-30 13F ATRICURE Common 04963C209 542,486 32,226 6.32 21,226 1.82 0.0222
2022-08-15 2022-06-30 13F ATRICURE Common 04963C209 510,260 18,889 3.84 20,847 -35.34 0.0210
2022-05-23 2022-03-31 13F/A-1 ATRICURE Common 04963C209 491,371 -11,909 -2.37 32,240 -6.37 0.0273
2022-05-13 2022-03-31 13F ATRICURE Common 04963C209 491,371 -11,909 31,658 0.0141
2022-02-11 2021-12-31 13F ATRICURE Common 04963C209 503,280 364 0.07 34,433 0.01 0.0270
2021-11-12 2021-09-30 13F ATRICURE Common 04963C209 502,916 -8,420 -1.65 34,429 -14.04 0.0301
2021-08-13 2021-06-30 13F ATRICURE Common 04963C209 511,336 -129,031 -20.15 40,054 -3.61 0.0350
2021-05-13 2021-03-31 13F ATRICURE Common 04963C209 640,367 -71,582 -10.05 41,556 5.36 0.0397
2021-02-10 2020-12-31 13F ATRICURE Common 04963C209 711,949 -21,981 -2.99 39,442 34.85 0.0409
2020-11-12 2020-09-30 13F ATRICURE Common 04963C209 733,930 -11,052 -1.48 29,248 -12.64 0.0347
2020-08-13 2020-06-30 13F ATRICURE Common 04963C209 744,982 -100,073 -11.84 33,480 18.12 0.0416
2020-05-14 2020-03-31 13F ATRICURE Common 04963C209 845,055 -7,083 -0.83 28,344 2.32 0.0432
2020-02-12 2019-12-31 13F ATRICURE Common 04963C209 852,138 91,059 11.96 27,701 45.98 0.0323
2019-11-13 2019-09-30 13F ATRICURE Common 04963C209 761,079 36,473 5.03 18,976 -12.22 0.0232
2019-08-13 2019-06-30 13F ATRICURE Common 04963C209 724,606 -7,821 -1.07 21,618 10.19 0.0259
2019-05-13 2019-03-31 13F ATRICURE Common 04963C209 732,427 7,597 1.05 19,618 -11.52 0.0240
2019-02-12 2018-12-31 13F ATRICURE Common 04963C209 724,830 -11,499 -1.56 22,173 -14.03 0.0309
2018-11-16 2018-09-30 13F/A-1 ATRICURE Common 04963C209 736,329 -24,197 -3.18 25,791 25.36 0.0292
2018-11-13 2018-09-30 13F ATRICURE Common 04963C209 736,329 -24,197 25,791
2018-08-13 2018-06-30 13F ATRICURE Common 04963C209 760,526 -19,339 -2.48 20,573 28.59 0.0227
2018-05-08 2018-03-31 13F ATRICURE Common 04963C209 779,865 -36,659 -4.49 15,999 7.41 0.0183
2018-02-14 2017-12-31 13F ATRICURE Common 04963C209 816,524 -83,772 -9.30 14,895 -26.04 0.0171
2017-11-15 2017-09-30 13F ATRICURE COMMON STOCK 04963C209 900,296 75,827 9.20 20,140 0.74 0.0252
2017-08-08 2017-06-30 13F ATRICURE COMMON STOCK 04963C209 824,469 257,949 45.53 19,993 84.28 0.0257
2017-05-10 2017-03-31 13F ATRICURE COMMON STOCK 04963C209 566,520 566,520 10,849 0.0140
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.