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 2025 vs. Q3 2025

How the institutions holding AtriCure, Inc. changed between Q3 2025 and Q4 2025.

All holders in Q4 2025 All holders in Q3 2025

13F holders of ATRC: Q3 2025 compared with Q4 2025
Measure	Q3 2025	Of which not filed for Q4 2025	Q4 2025	Change
Holders	223	4	234	+15
Shares	48.2M	302.3K	48.7M	+887.4K (+1.9%)
Value	$1.70B	$10.7M	$1.93B	+$242.0M (+14.4%)

4 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so the changes leave them out.

New holders (36)

Institutions that held AtriCure, Inc. at the end of Q4 2025 but not at the end of Q3 2025.

Institutions new to ATRC in Q4 2025
Institution	Shares	Value	% of portfolio
Nomura Asset Management International Inc.	2,038,703	$80.7M	0.12%
Defilade Capital Management, L.P.	397,636	$15.7M	2.13%
Point72 Asset Management, L.P.	277,924	$11.0M	0.02%
Norges Bank	214,016	$8.47M	0.00%
First Eagle Investment Management, LLC	116,609	$4.61M	0.01%
Susquehanna Portfolio Strategies, LLC	86,325	$3.42M	0.05%
F/M Investments LLC	72,588	$2.87M	0.11%
OpenArc Corporate Advisory, LLC	44,084	$1.74M	0.03%
Oak Harvest Investment Services	37,500	$1.48M	0.16%
Victory Capital Management Inc	24,843	$982.8K	0.00%
Campbell & CO Investment Adviser LLC	23,082	$913.1K	0.04%
Fox Run Management, L.L.C.	14,225	$562.7K	0.09%
Bridgefront Capital, LLC	12,506	$494.7K	0.12%
Stifel Financial Corp	11,750	$464.8K	0.00%
Entropy Technologies, LP	9,085	$359.4K	0.02%
ExodusPoint Capital Management, LP	8,966	$354.7K	0.00%
Caxton Associates LLP	6,885	$272.4K	0.01%
Wealth Enhancement Advisory Services, LLC	6,354	$263.3K	0.00%
Atria Investments LLC	6,476	$256.2K	0.00%
Prelude Capital Management, LLC	6,095	$241.1K	0.02%
Stratos Wealth Advisors, LLC	5,472	$216.5K	0.01%
JustInvest LLC	5,358	$212.0K	0.00%
Skopos Labs, Inc.	4,994	$201.9K	0.01%
Kemnay Advisory Services Inc.	2,892	$114.4K	0.02%
State of Wyoming	1,884	$74.5K	0.01%
Global Retirement Partners, LLC	1,854	$73.3K	0.00%
Pinnacle Wealth Planning Services, Inc.	1,362	$53.9K	0.01%
Los Angeles Capital Management LLC	208	$7.09K	0.00%
Brown Brothers Harriman & Co	166	$6.57K	0.00%
LRI Investments, LLC	79	$3.12K	0.00%
Torren Management, LLC	20	$791	0.00%
Advocate Investing Services LLC	20	$791	0.00%
Sunbelt Securities, Inc.	7	$277	0.00%
SageView Advisory Group, LLC	2	$80	0.00%
Hughes Financial Services, LLC	1	$40	0.00%
Dunhill Financial, LLC	1	$34	0.00%

Sold out (21)

Institutions that held AtriCure, Inc. at the end of Q3 2025 and filed for Q4 2025 without it.

Institutions that sold out of ATRC in Q4 2025
Institution	Shares, Q3 2025	Value, Q3 2025
Macquarie Group Ltd	2,289,369	$80.7M
Susquehanna Fundamental Investments, LLC	75,922	$2.68M
Aquatic Capital Management LLC	23,015	$811.3K
Semanteon Capital Management, LP	16,001	$564.0K
Henshaw Capital LLC	15,560	$548.5K
Schonfeld Strategic Advisors LLC	12,022	$423.8K
R Squared Ltd	7,582	$267.3K
Hohimer Wealth Management, LLC	7,000	$246.8K
Teacher Retirement System of Texas	6,481	$228.5K
Omers Administration Corp	6,300	$222.1K
Verdence Capital Advisors LLC	5,996	$218.7K
Portside Wealth Group, LLC	6,093	$214.8K
Divisadero Street Capital Management, LP	5,959	$210.1K
State of Tennessee, Treasury Department	4,077	$143.7K
Aster Capital Management (DIFC) Ltd	811	$28.6K
Mather Group, LLC.	195	$6.87K
Salem Investment Counselors Inc	111	$3.91K
Fifth Third Bancorp	36	$1.27K
South State Corp.	30	$1.06K
Principal Securities, Inc.	5	$176
Advisory Services Network, LLC	2	$71

Not filed for Q4 2025 yet (4)

Institutions that held AtriCure, Inc. at the end of Q3 2025 and haven't filed a 13F for Q4 2025. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding ATRC in Q3 2025 that haven't filed for Q4 2025
Institution	Shares, Q3 2025	Value, Q3 2025
Point72 (DIFC) Ltd	262,065	$9.24M
Cubist Systematic Strategies, LLC	37,434	$1.32M
Point72 Asia (Singapore) Pte. Ltd.	2,270	$80.0K
Point72 Europe (London) LLP	579	$20.4K