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.

Q4 2024 vs. Q3 2024

How the institutions holding AtriCure, Inc. changed between Q3 2024 and Q4 2024.

All holders in Q4 2024 All holders in Q3 2024

13F holders of ATRC: Q3 2024 compared with Q4 2024
Measure	Q3 2024	Of which not filed for Q4 2024	Q4 2024	Change
Holders	202	5	213	+16
Shares	49.4M	223.6K	46.5M	−2.68M (−5.4%)
Value	$1.39B	$7.40M	$1.42B	+$43.2M (+3.1%)

5 institutions that held it in Q3 2024 haven't filed for Q4 2024 yet. Not filing isn't selling, so the changes leave them out.

New holders (39)

Institutions that held AtriCure, Inc. at the end of Q4 2024 but not at the end of Q3 2024.

Institutions new to ATRC in Q4 2024
Institution	Shares	Value	% of portfolio
Adage Capital Partners GP, L.L.C.	300,000	$9.17M	0.02%
Oberweis Asset Management Inc	151,500	$4.63M	0.22%
Raymond James Financial Inc	121,591	$3.72M	0.00%
Susquehanna Fundamental Investments, LLC	104,094	$3.18M	0.05%
Gsa Capital Partners LLP	72,218	$2.21M	0.16%
Natixis	60,500	$1.85M	0.01%
Dynamic Technology Lab Private Ltd	32,330	$988.0K	0.16%
Arrowstreet Capital, Limited Partnership	26,693	$815.7K	0.00%
AlphaCentric Advisors LLC	26,035	$795.6K	0.79%
Dark Forest Capital Management LP	25,164	$769.0K	0.11%
Man Group plc	24,368	$744.7K	0.00%
Verition Fund Management LLC	22,721	$694.4K	0.00%
Graham Capital Management, L.P.	21,249	$649.4K	0.02%
American Century Companies Inc	16,872	$515.6K	0.00%
Bryce Point Capital, LLC	16,760	$512.2K	0.15%
Centiva Capital, LP	16,687	$510.0K	0.02%
LMR Partners LLP	16,313	$498.5K	0.01%
Colony Group, LLC	16,306	$498.3K	0.00%
Mackenzie Financial Corp	15,214	$464.9K	0.00%
Brown Advisory Inc	11,436	$349.5K	0.00%
Sherbrooke Park Advisers LLC	10,792	$329.8K	0.11%
KLP Kapitalforvaltning AS	10,500	$320.9K	0.00%
Police & Firemen's Retirement System of New Jersey	10,250	$313.2K	0.00%
Ameriprise Financial Inc	9,638	$294.5K	0.00%
Astra Wealth Partners LLC	8,048	$245.9K	0.23%
Boothbay Fund Management, LLC	7,545	$230.6K	0.01%
Silver Oak Securities, Inc	7,278	$220.2K	0.02%
Versor Investments LP	7,100	$217.0K	0.04%
Cowa, LLC	7,097	$216.9K	0.10%
Acadian Asset Management LLC	7,010	$213.0K	0.00%
M&T Bank Corp	6,799	$207.8K	0.00%
Pictet Asset Management Holding SA	6,735	$205.8K	0.00%
R Squared Ltd	2,920	$89.2K	0.09%
Heck Capital Advisors, LLC	455	$13.9K	0.00%
Aster Capital Management (DIFC) Ltd	391	$11.9K	0.00%
Quarry LP	379	$11.6K	0.00%
Northwestern Mutual Wealth Management Co	125	$3.82K	0.00%
EverSource Wealth Advisors, LLC	46	$1.41K	0.00%
Bokf, NA	8	$251	0.00%

Sold out (23)

Institutions that held AtriCure, Inc. at the end of Q3 2024 and filed for Q4 2024 without it.

Institutions that sold out of ATRC in Q4 2024
Institution	Shares, Q3 2024	Value, Q3 2024
Silvercrest Asset Management Group LLC	267,604	$7.50M
Lighthouse Investment Partners, LLC	131,711	$3.69M
SG Capital Management LLC	72,589	$2.04M
Atom Investors LP	62,095	$1.74M
Arizona PSPRS Trust	59,103	$1.66M
Altium Capital Management LP	54,000	$1.51M
Gilder Gagnon Howe & Co LLC	47,323	$1.33M
ExodusPoint Capital Management, LP	30,418	$853.0K
Bank of Montreal	21,309	$600.5K
Bridgewater Associates, LP	19,685	$552.0K
SG Americas Securities, LLC	17,393	$488.0K
Cresset Asset Management, LLC	14,668	$411.3K
EntryPoint Capital, LLC	14,250	$399.6K
Delap Wealth Advisory, LLC	8,674	$243.2K
nVerses Capital, LLC	5,000	$140.2K
Arcadia Investment Management Corp	1,000	$28.0K
Capital Performance Advisors LLP	130	$3.65K
Financial Network Wealth Advisors LLC	114	$3.20K
National Bank of Canada	112	$3.14K
Federation des caisses Desjardins du Quebec	100	$2.80K
Simplex Trading, LLC	73	$2.00K
Allworth Financial LP	26	$730
Avion Wealth	19	$0

Not filed for Q4 2024 yet (5)

Institutions that held AtriCure, Inc. at the end of Q3 2024 and haven't filed a 13F for Q4 2024. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding ATRC in Q3 2024 that haven't filed for Q4 2024
Institution	Shares, Q3 2024	Value, Q3 2024
Eagle Asset Management Inc	120,483	$4.51M
Millrace Asset Group, Inc.	71,708	$2.01M
B. Metzler seel. Sohn & Co. Holding AG	31,366	$879.5K
FinTrust Capital Advisors, LLC	24	$673
Planning Capital Management Corp	1	$29