AtriCure, Inc.

ATRCNASDAQ

$55.14+1.55 (+2.89% today)

Legend

Insider buy

Insider sell

Congress buy

Congress sell

Hedge Funds
bought vs soldGreener markers show more buyers; redder markers show more sellers.

Company share activityNet buybacksNo changeNet dilution

Marker size reflects transaction size.

Insider buy
Insider sell
Congress buy
Congress sell
Hedge Funds bought vs sold

Share activityNet buybacksNo changeNet dilution

Marker size reflects transaction size. Greener fund markers mean more buyers.

Insider Buy
Insider Sell
Congress Buy
Congress Sell
Hedge funds bought vs sold
BuybackNo changeNet dilution

AtriCure, Inc. price and activity chart data

Showing the 1Y range: Oct 2, 2025 to Oct 2, 2026. Price (+60.8%). 0 insider or congressional trades plotted in this window as 0 markers; nearby trades of the same kind are grouped.

Transactions plotted on the price chart
Date	Category	Person	Role	Action	Amount	Change in holding

Largest institutional holders

13F · Q2 2026

Fund	% of company held	Value	% of portfolio	Quarterly activity
BlackRock, Inc.	8.80%	$125M	0.00%	Not reported
Wellington Management Group LLP	6.87%	$97.8M	0.02%	Add 3.34%
Vanguard Portfolio Management LLC	6.15%	$87.5M	0.00%	Not reported
Hood River Capital Management LLC	5.71%	$81.3M	0.59%	Reduce 6.81%
Alliancebernstein L.P.	5.44%	$79M	0.03%	Not reported
Vanguard Capital Management LLC	4.31%	$61.3M	0.00%	Not reported
Nomura Asset Management International Inc.	3.41%	$48.5M	0.07%	Reduce 3.91%
Goldman Sachs Group Inc	3.14%	$44.7M	0.00%	Not reported
State Street Corp	2.73%	$38.9M	0.00%	Not reported
Marshall Wace, LLP	2.62%	$37.3M	0.03%	Not reported
Geode Capital Management, LLC	2.59%	$36.9M	0.00%	Not reported
Arrowstreet Capital, Limited Partnership	2.55%	$36.3M	0.02%	Not reported
Dimensional Fund Advisors LP	2.05%	$29.2M	0.01%	Not reported
GW&K Investment Management, LLC	1.87%	$26.6M	0.21%	Not reported
Neuberger Berman Group LLC	1.86%	$26.6M	0.02%	Not reported
Champlain Investment Partners, LLC	1.85%	$26.3M	0.67%	Reduce 3.35%
BNP PARIBAS ASSET MANAGEMENT Holding S.A.	1.76%	$25.1M	0.03%	Reduce 15.40%
Bank of America Corp	1.72%	$24.5M	0.00%	Not reported
Kennedy Capital Management LLC	1.69%	$24M	0.42%	Add 2.83%
Divisadero Street Capital Management, LP	1.57%	$22.4M	0.51%	Reduce 30.95%
Point72 Asset Management, L.P.	1.19%	$16.9M	0.02%	Not reported
DAFNA Capital Management LLC	1.17%	$16.7M	3.19%	Not reported
First Eagle Investment Management, LLC	1.17%	$16.7M	0.01%	Add 127.08%
Grandeur Peak Global Advisors, LLC	1.15%	$16.4M	3.80%	Add 53.81%
Massachusetts Financial Services Co	1.14%	$16.2M	0.01%	Reduce 0.81%
First Light Asset Management, LLC	1.12%	$15.9M	0.97%	Reduce 22.16%
Qube Research & Technologies Ltd	1.10%	$15.7M	0.01%	Not reported
AQR Capital Management LLC	1.07%	$15.2M	0.01%	Not reported
Two Sigma Investments, LP	1.03%	$14.7M	0.01%	Not reported
FMR LLC	1.00%	$14.2M	0.00%	Not reported
Osterweis Capital Management Inc	0.99%	$14M	0.66%	Add 43.39%
Northern Trust Corp	0.95%	$13.5M	0.00%	Not reported
Morgan Stanley	0.90%	$12.8M	0.00%	Not reported
Charles Schwab Investment Management Inc	0.83%	$11.8M	0.00%	Not reported
Panagora Asset Management Inc	0.77%	$10.9M	0.03%	Not reported
Norges Bank	0.74%	$10.5M	0.00%	Not reported
Nuveen, LLC	0.72%	$10.2M	0.00%	Not reported
Vanguard Fiduciary Trust Co	0.71%	$10M	0.00%	Not reported
WCM Investment Management, LLC	0.69%	$10.1M	0.02%	Reduce 2.41%
Sei Investments Co	0.55%	$7.87M	0.01%	Not reported
Raymond James Financial Inc	0.52%	$7.44M	0.00%	Not reported
Amundi	0.52%	$7.41M	0.00%	Not reported
Renaissance Technologies LLC	0.46%	$6.55M	0.01%	Not reported
Wasatch Advisors LP	0.46%	$6.54M	0.04%	Reduce 8.00%
Universal- Beteiligungs- und Servicegesellschaft mbH	0.45%	$6.33M	0.01%	Not reported
Nicholas Company, Inc.	0.40%	$5.72M	0.10%	Not reported
D. E. Shaw & Co., Inc.	0.38%	$5.4M	0.00%	Not reported
Citadel Advisors LLC	0.35%	$4.96M	0.00%	Not reported
Advisors Capital Management, LLC	0.34%	$4.88M	0.05%	Reduce 4.29%
Meros Investment Management, LP	0.33%	$4.76M	1.51%	New Not reported

50 of 239 holders

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