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.

Q3 2021 vs. Q2 2021

How the institutions holding AtriCure, Inc. changed between Q2 2021 and Q3 2021.

All holders in Q3 2021 All holders in Q2 2021

13F holders of ATRC: Q2 2021 compared with Q3 2021
Measure	Q2 2021	Of which not filed for Q3 2021	Q3 2021	Change
Holders	212	3	214	+5
Shares	44.3M	3.97K	43.4M	−944.7K (−2.1%)
Value	$3.51B	$315.0K	$3.02B	−$498.2M (−14.2%)

3 institutions that held it in Q2 2021 haven't filed for Q3 2021 yet. Not filing isn't selling, so the changes leave them out.

New holders (27)

Institutions that held AtriCure, Inc. at the end of Q3 2021 but not at the end of Q2 2021.

Institutions new to ATRC in Q3 2021
Institution	Shares	Value	% of portfolio
Balyasny Asset Management LLC	315,647	$22.0M	0.11%
Assenagon Asset Management S.A.	147,245	$10.2M	0.04%
CastleArk Alternatives, LLC	145,966	$10.2M	0.39%
Cinctive Capital Management LP	53,239	$3.70M	0.20%
Panagora Asset Management Inc	32,063	$2.23M	0.01%
Genesee Capital Advisors, LLC	27,566	$1.92M	0.95%
Cassia Capital Partners, LLC	20,244	$1.41M	0.97%
Brookfield Asset Management Inc.	19,994	$1.39M	0.01%
HRT Financial LP	16,198	$1.13M	0.01%
Lazard Asset Management LLC	14,744	$1.02M	0.00%
Marks Group Wealth Management, Inc	12,686	$882.0K	0.12%
Blueshift Asset Management, LLC	9,708	$675.0K	0.04%
Duality Advisers, LP	9,240	$643.0K	0.05%
Lowe Brockenbrough & Co Inc	7,369	$513.0K	0.04%
Walleye Capital LLC	4,633	$322.0K	0.01%
Baird Financial Group, Inc.	4,607	$320.0K	0.00%
Janus Henderson Group PLC	4,321	$301.0K	0.00%
AlphaCrest Capital Management LLC	3,607	$251.0K	0.01%
Great Lakes Advisors, LLC	3,324	$231.0K	0.00%
Walleye Trading LLC	3,246	$226.0K	0.01%
Pictet Asset Management SA	3,200	$223.0K	0.00%
Caption Management, LLC	700	$49.0K	0.00%
Clearstead Advisors, LLC	326	$23.0K	0.00%
Huntington National Bank	16	$1.00K	0.00%
Quantbot Technologies LP	21	$1.00K	0.00%
Berman Capital Advisors, LLC	4	$0	0.00%
Meridian Wealth Partners, LLC	7	$0	0.00%

Sold out (22)

Institutions that held AtriCure, Inc. at the end of Q2 2021 and filed for Q3 2021 without it.

Institutions that sold out of ATRC in Q3 2021
Institution	Shares, Q2 2021	Value, Q2 2021
EAM Investors, LLC	32,987	$2.62M
Jump Financial, LLC	20,732	$1.65M
Natixis Advisors, L.P.	12,916	$1.02M
ETF Managers Group, LLC	11,132	$883.0K
Susquehanna International Group, LLP	8,199	$650.0K
Schonfeld Strategic Advisors LLC	7,900	$627.0K
Banque Cantonale Vaudoise	7,626	$605.0K
Advisory Services Network, LLC	6,575	$522.0K
Connor, Clark & Lunn Investment Management Ltd.	6,426	$510.0K
Gsa Capital Partners LLP	6,259	$497.0K
Guggenheim Capital LLC	5,875	$466.0K
Maverick Capital LtdSuperinvestorMaverick Capital	4,267	$339.0K
Mutual Advisors, LLC	3,000	$238.0K
Russell Investments Group, Ltd.	2,952	$234.0K
MML Investors Services, LLC	2,794	$222.0K
Arrowstreet Capital, Limited Partnership	2,800	$222.0K
FORA Capital, LLC	2,620	$208.0K
Dark Forest Capital Management LP	2,541	$202.0K
Optimum Investment Advisors	500	$40.0K
Exos Asset Management LLC	349	$28.0K
Signaturefd, LLC	21	$2.00K
Enterprise Financial Services Corp	17	$1.00K

Not filed for Q3 2021 yet (3)

Institutions that held AtriCure, Inc. at the end of Q2 2021 and haven't filed a 13F for Q3 2021. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding ATRC in Q2 2021 that haven't filed for Q3 2021
Institution	Shares, Q2 2021	Value, Q2 2021
Pictet Asset Management Ltd	3,200	$254.0K
First Horizon Corp	734	$58.0K
CWM, LLC	34	$3.00K