AtriCure, Inc.

ATRC

Exchange: Nasdaq
Industry: Surgical & Medical Instruments & Apparatus
SEC CIK: 0001323885

SEC filings (opens in a new tab)

In the last 90 days, AtriCure, Inc. insiders filed 0 open-market purchases and 10 sales; 251 institutions reported holding it in 13F filings for Q2 2026, worth $1.47B in total; no superinvestor holds it.

Q2 2026 vs. Q1 2026

How the institutions holding AtriCure, Inc. changed between Q1 2026 and Q2 2026.

All holders in Q2 2026 All holders in Q1 2026

13F holders of ATRC: Q1 2026 compared with Q2 2026
Measure	Q1 2026	Of which not filed for Q2 2026	Q2 2026	Change
Holders	224	2	251	+29
Shares	50.0M	31.6K	52.4M	+2.38M (+4.8%)
Value	$1.46B	$903.0K	$1.47B	+$5.77M (+0.4%)

2 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so the changes leave them out.

New holders (52)

Institutions that held AtriCure, Inc. at the end of Q2 2026 but not at the end of Q1 2026.

Institutions new to ATRC in Q2 2026
Institution	Shares	Value	% of portfolio
Point72 Asset Management, L.P.	604,380	$16.9M	0.03%
Norges Bank	374,362	$10.5M	0.00%
Meros Investment Management, LP	170,000	$4.76M	1.51%
Topline Capital Management, LLC	138,490	$3.87M	1.00%
ExodusPoint Capital Management, LP	86,356	$2.42M	0.02%
Susquehanna Portfolio Strategies, LLC	80,089	$2.24M	0.04%
Assenagon Asset Management S.A.	62,334	$1.74M	0.00%
Granite Investment Partners, LLC	58,828	$1.65M	0.08%
Susquehanna Fundamental Investments, LLC	50,484	$1.41M	0.03%
Caption Management, LLC	39,168	$1.10M	0.04%
XTX Topco Ltd	37,248	$1.04M	0.01%
Winton Group Ltd	35,800	$1.00M	0.03%
Jupiter Topco LLC	22,883	$640.2K	0.00%
Cerity Partners LLC	22,769	$637.1K	0.00%
Exit Wealth Advisors, LLC.	22,536	$630.6K	0.29%
Allstate Corp	21,862	$611.7K	0.01%
Quadrature Capital Ltd	21,565	$603.4K	0.01%
Jain Global LLC	20,576	$575.7K	0.01%
VARCOV Co.	18,443	$516.0K	0.20%
Sanctuary Advisors, LLC	17,515	$490.1K	0.00%
Cambridge Investment Research Advisors, Inc.	17,045	$477.0K	0.00%
Diversify Advisory Services, LLC	11,993	$448.2K	0.01%
Mercer Global Advisors Inc	13,561	$379.4K	0.00%
Tactive Advisors, LLC	13,367	$374.0K	0.09%
Cetera Investment Advisers	12,625	$353.2K	0.00%
Inceptionr LLC	11,770	$329.3K	0.08%
Natixis Advisors, L.P.	11,169	$312.0K	0.00%
Fox Run Management, L.L.C.	10,268	$287.3K	0.05%
Headlands Technologies LLC	10,064	$281.6K	0.03%
Van Diest Capital, LLC	9,386	$262.6K	0.24%
Mitsubishi UFJ Trust & Banking Corp	9,010	$252.1K	0.00%
Prelude Capital Management, LLC	8,639	$241.7K	0.02%
CenterBook Partners LP	8,530	$238.7K	0.01%
Merit Financial Group, LLC	8,524	$238.5K	0.00%
HighTower Advisors, LLC	8,490	$237.6K	0.00%
Three Seasons Wealth, LLC	7,152	$200.1K	0.02%
Kemnay Advisory Services Inc.	2,486	$69.6K	0.01%
DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main	2,018	$56.5K	0.00%
Global Retirement Partners, LLC	1,874	$52.4K	0.00%
Harbor Investment Advisory, LLC	1,426	$39.9K	0.00%
Quarry LP	1,330	$37.2K	0.01%
Spire Wealth Management	616	$17.2K	0.00%
Nykredit A/S	612	$17.1K	0.00%
Bayforest Capital Ltd	419	$11.7K	0.01%
Signature Equity Partners, LLC	315	$8.81K	0.00%
Silver Grove Financial Group, Inc.	121	$3.39K	0.00%
Northwestern Mutual Wealth Management Co	61	$1.71K	0.00%
Wealth Enhancement Trust Services, Inc.	42	$1.18K	0.00%
Caitlin John, LLC	39	$1.09K	0.00%
West Paces Advisors Inc.	25	$700	0.00%
Clearstead Advisors, LLC	21	$588	0.00%
JPL Wealth Management, LLC	4	$112	0.00%

Sold out (23)

Institutions that held AtriCure, Inc. at the end of Q1 2026 and filed for Q2 2026 without it.

Institutions that sold out of ATRC in Q2 2026
Institution	Shares, Q1 2026	Value, Q1 2026
Millennium Management LLC	179,886	$5.13M
Allianz Asset Management GmbH	122,158	$3.49M
Lazard Asset Management LLC	54,015	$1.54M
Oak Harvest Investment Services	45,000	$1.28M
Gsa Capital Partners LLP	36,242	$1.03M
Balyasny Asset Management LLC	17,299	$493.5K
Mirabella Financial Services LLP	15,731	$448.8K
Caxton Associates LLP	10,472	$298.8K
Bessemer Group Inc	9,570	$273.0K
Graham Capital Management, L.P.	9,563	$272.8K
Cornerstone Investment Partners, LLC	9,178	$261.8K
JustInvest LLC	8,635	$246.4K
ProShare Advisors LLC	7,013	$200.1K
Quadrant Capital Group LLC	5,616	$160.2K
State of Wyoming	3,537	$100.9K
STRS Ohio	1,800	$51.4K
Geneos Wealth Management Inc.	1,135	$32.4K
C M Bidwell & Associates Ltd	117	$3.34K
LRI Investments, LLC	78	$2.23K
Wealth Preservation Advisors, LLC	48	$1.37K
Investors Portfolio Services LLC	41	$1.09K
Hughes Financial Services, LLC	4	$114
Avion Wealth	19	$0

Not filed for Q2 2026 yet (2)

Institutions that held AtriCure, Inc. at the end of Q1 2026 and haven't filed a 13F for Q2 2026. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding ATRC in Q1 2026 that haven't filed for Q2 2026
Institution	Shares, Q1 2026	Value, Q1 2026
Janus Henderson Group PLC	22,883	$652.9K
CWM, LLC	8,767	$250.1K