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Equibles

ATRC

AtriCure, Inc.
$31.79 +2.06 (+6.93%) At close · Jul 2
Market Cap
$1.61B
Shares
50,640,970

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

The Jun 30, 2026 filing window is still open — showing the latest known positions. Funds that have not filed yet carry their prior-quarter positions; a fund that filed without this stock counts as sold out.
Holders: 222
Total Value: $1,350,051,475
Total Shares: 47,320,423
Showing 1–100 of 223 holdings by value · page 1 of 3

Institutional Ownership Trend

26 quarters

Superinvestors Holding ATRC

All superinvestors →
Ray Dalio $956,240

Holder Concentration

Across 222 13F filers
Top Holder
8.5%
Jun 2023 → Mar 2026 · range 8.5% – 10.3%
of institutional value
Top 5
33.7%
Jun 2023 → Mar 2026 · range 33.4% – 41.0%
of institutional value
Top 10
49.5%
Jun 2023 → Mar 2026 · range 46.8% – 57.4%
of institutional value
HHI
346
Jun 2023 → Mar 2026 · range 346 – 442
Broadly held
Showing 100 of 223
All Common Calls Puts
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Holder Value (USD) % of 13F Shares Open
Mega BlackRock, Inc. $115,337,683 8.54% 4,042,681
Mega WELLINGTON MANAGEMENT GROUP LLP $96,504,291 7.15% 3,382,555
Mega ALLIANCEBERNSTEIN L.P. $92,975,618 6.89% 3,258,872
Mid Hood River Capital Management LLC $88,943,558 6.59% 3,117,545
Mega VANGUARD CAPITAL MANAGEMENT LLC $61,503,946 4.56% 2,155,764
Large NOMURA ASSET MANAGEMENT INTERNATIONAL INC. $51,494,567 3.81% 1,804,927
Mega GOLDMAN SACHS GROUP INC $47,564,244 3.52% 1,667,166
Large MARSHALL WACE, LLP $41,868,458 3.10% 1,467,524
Mega STATE STREET CORP $37,150,681 2.75% 1,302,162
Mega GEODE CAPITAL MANAGEMENT, LLC $34,981,089 2.59% 1,226,116
Mid Divisadero Street Capital Management, LP $33,093,516 2.45% 1,159,955
Large BNP PARIBAS ASSET MANAGEMENT Holding S.A. $30,264,794 2.24% 1,060,806
Mega NEUBERGER BERMAN GROUP LLC $29,964,544 2.22% 1,050,282
Mega DIMENSIONAL FUND ADVISORS LP $28,466,062 2.11% 997,759
Mid Champlain Investment Partners, LLC $27,705,796 2.05% 971,111
Large GW&K Investment Management, LLC $27,486,229 2.04% 963,415
Mid KENNEDY CAPITAL MANAGEMENT LLC $23,798,442 1.76% 834,155
Mega BANK OF AMERICA CORP /DE/ Bank $21,927,043 1.62% 768,561
Mega TWO SIGMA INVESTMENTS, LP $21,426,115 1.59% 751,003
Mid First Light Asset Management, LLC $20,813,234 1.54% 729,521
Large VOYA INVESTMENT MANAGEMENT LLC $20,531,584 1.52% 719,649
Mega MORGAN STANLEY $20,517,689 1.52% 719,162
Small DAFNA Capital Management LLC $17,044,706 1.26% 597,431
Mega MASSACHUSETTS FINANCIAL SERVICES CO /MA/ $16,700,120 1.24% 585,353
Mega UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC $15,837,398 1.17% 555,114
Large Qube Research & Technologies Ltd $12,975,187 0.96% 454,791
Mega NORTHERN TRUST CORP Bank $12,827,057 0.95% 449,599
Mega CHARLES SCHWAB INVESTMENT MANAGEMENT INC $12,263,135 0.91% 429,833
Small Grandeur Peak Global Advisors, LLC $10,895,664 0.81% 381,902
Large WCM INVESTMENT MANAGEMENT, LLC $10,263,981 0.76% 359,761
Mid OSTERWEIS CAPITAL MANAGEMENT INC $9,975,371 0.74% 349,645
Large Connor, Clark & Lunn Investment Management Ltd. $9,853,919 0.73% 345,388
Mega VANGUARD FIDUCIARY TRUST CO Bank $9,781,624 0.72% 342,854
Mega FMR LLC $9,609,302 0.71% 336,814
Mega Nuveen, LLC $9,606,821 0.71% 336,727
Large RENAISSANCE TECHNOLOGIES LLC $8,807,211 0.65% 308,700
Mega ARROWSTREET CAPITAL, LIMITED PARTNERSHIP $7,922,267 0.59% 277,682
Large First Eagle Investment Management, LLC $7,478,939 0.55% 262,143
Large SEI INVESTMENTS CO $7,440,281 0.55% 260,788
Large WASATCH ADVISORS LP $7,244,651 0.54% 253,931
Large PANAGORA ASSET MANAGEMENT INC $6,487,065 0.48% 227,377
Mega Amundi $6,445,838 0.48% 225,932
Mega RAYMOND JAMES FINANCIAL INC $6,188,354 0.46% 216,907
Large Universal- Beteiligungs- und Servicegesellschaft mbH $6,149,498 0.46% 215,545
Mid NICHOLAS COMPANY, INC. $5,837,095 0.43% 204,595
Mega FIRST TRUST ADVISORS LP $5,400,301 0.40% 189,285
Mega AQR CAPITAL MANAGEMENT LLC $5,317,473 0.39% 186,382
Mid Advisors Capital Management, LLC $5,201,418 0.39% 182,314
Mega MILLENNIUM MANAGEMENT LLC $5,132,147 0.38% 179,886
Mega JPMORGAN CHASE & CO $4,886,131 0.36% 171,263
Large STATE OF WISCONSIN INVESTMENT BOARD $4,774,609 0.35% 167,354
Large ADAGE CAPITAL PARTNERS GP, L.L.C. $4,279,500 0.32% 150,000
Large Trexquant Investment LP $4,082,471 0.30% 143,094
Mega Bank of New York Mellon Corp Bank $3,727,441 0.28% 130,650
Mid PARADIGM CAPITAL MANAGEMENT INC/NY $3,512,043 0.26% 123,100
Large Allianz Asset Management GmbH $3,485,167 0.26% 122,158
Mid SIT INVESTMENT ASSOCIATES INC $3,233,304 0.24% 113,330
Large Schonfeld Strategic Advisors LLC $2,900,987 0.21% 101,682
Mega Swiss National Bank Bank $2,795,940 0.21% 98,000
Large VOLORIDGE INVESTMENT MANAGEMENT, LLC $2,772,602 0.21% 97,182
Large ACADIAN ASSET MANAGEMENT LLC $2,534,947 0.19% 88,852
Mega CITADEL ADVISORS LLC $2,492,009 0.18% 87,347
Large Man Group plc $2,428,359 0.18% 85,116
Micro HighMark Wealth Management LLC $2,388,531 0.18% 83,720
Mega Invesco Ltd. $2,205,823 0.16% 77,316
Mid Emerald Investment Advisers, LLC $2,039,666 0.15% 71,492
Small Riverwater Partners LLC $2,011,536 0.15% 70,506
Mega WELLS FARGO & COMPANY/MN $1,970,965 0.15% 69,084
Large HRT FINANCIAL LP $1,913,535 0.14% 67,071
Mega RHUMBLINE ADVISERS $1,890,996 0.14% 66,281
Mega UBS Group AG $1,879,127 0.14% 65,865
Mega PRINCIPAL FINANCIAL GROUP INC $1,834,364 0.14% 64,296
Mega PRICE T ROWE ASSOCIATES INC /MD/ $1,719,931 0.13% 60,285
Large CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM Pension $1,710,287 0.13% 59,947
Mid Orion Porfolio Solutions, LLC $1,663,213 0.12% 58,297
Mega ENVESTNET ASSET MANAGEMENT INC $1,651,230 0.12% 57,877
Mega D. E. Shaw & Co., Inc. $1,614,484 0.12% 56,589
Mega FRANKLIN RESOURCES INC $1,583,869 0.12% 55,516
Large LAZARD ASSET MANAGEMENT LLC $1,541,047 0.11% 54,015
Mega AMERIPRISE FINANCIAL INC $1,494,485 0.11% 52,383
Small Knott David M Jr $1,466,442 0.11% 51,400
Mega DEUTSCHE BANK AG\ Bank $1,441,049 0.11% 50,510
Large B. Metzler seel. Sohn & Co. AG $1,422,962 0.11% 49,876
Small Oak Harvest Investment Services $1,283,850 0.10% 45,000
Mega VANGUARD ASSET MANAGEMENT, Ltd $1,277,687 0.09% 44,784
Mid Engineers Gate Manager LP $1,223,280 0.09% 42,877
Mega Legal & General Group Plc $1,206,875 0.09% 42,302
Mid HARBOR CAPITAL ADVISORS, INC. $1,185,335 0.09% 41,547
Mid ALGERT GLOBAL LLC $1,163,995 0.09% 40,799
Large SCOTIA CAPITAL INC. $1,152,012 0.09% 40,379
Mid Diversified Trust Co Bank $1,143,767 0.08% 40,090
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $1,106,307 0.08% 38,777
Mid GSA CAPITAL PARTNERS LLP $1,033,984 0.08% 36,242
Large TEACHERS RETIREMENT SYSTEM OF THE STATE OF KENTUCKY Pension $1,029,990 0.08% 36,102
Large Bridgewater Associates, LP $956,240 0.07% 33,517
Large PRUDENTIAL FINANCIAL INC $863,603 0.06% 30,270
Small Marks Group Wealth Management, Inc $826,599 0.06% 28,973
Large US BANCORP \DE\ Bank $801,834 0.06% 28,105
Large MetLife Investment Management, LLC $762,236 0.06% 26,717
Small PERKINS CAPITAL MANAGEMENT INC $744,633 0.06% 26,100
Key facts CIK 1323885 CUSIP 04963C209 13F (30d) 2 filings 2 filers Visit website Investor relations

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