ATRC

AtriCure, Inc.

Surgical & Medical Instruments & ApparatusNasdaqLarge accelerated filer

Total Trades

26

Buys

1

Sells

23

Largest Trade

$100K–$500K

Insiders

8

Institutional Funds

189

Inst. Value

$1M+

Activist Filings

20

Insider Trades

InsiderTitleTypeValueSharesPriceDate
WEHRWEIN SVENDirectorSELL$100K–$500K10K$37.66Nov 26, 2025
WEHRWEIN SVENDirectorEXERCISE$100K–$500K10K$19.95Nov 26, 2025
Noznesky Justin JChief Mktg & Strat…SELL$100K–$500K5K$37.29Nov 26, 2025
Yuen MaggieDirectorSELL$100K–$500K3K$35.72Nov 25, 2025
Noznesky Justin JChief Mktg & Strat…SELL$100K–$500K3K$36.30Sep 16, 2025
WEHRWEIN SVENDirectorEXERCISE$50K–$100K5K$19.95Aug 26, 2025
WEHRWEIN SVENDirectorSELL$100K–$500K5K$37.00Aug 26, 2025
Doraiswamy VinayakChief Scientific O…SELL$50K–$100K3K$33.44May 30, 2025
Yuen MaggieDirectorSELL$50K–$100K4K$24.07Aug 19, 2024
Privitera SalvatoreChief Technical Of…BUY$100K–$500K5K$22.25May 31, 2024
Noznesky Justin JChief Mktg & Strat…SELL$15K–$50K2K$24.09May 3, 2024
Noznesky Justin JChief Mktg & Strat…SELL$15K–$50K2K$30.39Apr 3, 2024
Dahlquist Karl S.Chief Legal OfficerSELL$50K–$100K2K$32.16Mar 20, 2024
Dahlquist Karl S.Chief Legal OfficerSELL$15K–$50K1K$34.43Nov 3, 2023
Dahlquist Karl S.Chief Legal OfficerSELL$100K–$500K3K$57.09Jul 28, 2023
Prange KarenDirectorSELL$15K–$50K713$47.89Jun 12, 2023
Dahlquist Karl S.Chief Legal OfficerSELL$50K–$100K1K$47.03Jun 7, 2023
Yuen MaggieDirectorSELL$100K–$500K4K$47.04May 30, 2023
Dahlquist Karl S.Chief Legal OfficerSELL$100K–$500K4K$44.83May 3, 2023
Doraiswamy VinayakChief Scientific O…SELL$100K–$500K5K$45.99Sep 19, 2022
Austin TonyaCHROSELL$100K–$500K3K$42.69May 17, 2022
Austin TonyaCHROSELL$15K–$50K282$61.59Apr 12, 2022
Austin TonyaCHROSELL$50K–$100K1K$67.66Mar 7, 2022
Austin TonyaCHROSELL$100K–$500K5K$70.04Mar 4, 2022
Austin TonyaCHROSELL$100K–$500K2K$67.97Feb 15, 2022
Austin TonyaCHROSELL$100K–$500K3K$66.11Jan 18, 2022
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Activist & 5%+ Owners

SC 13D/13G filings — investors holding 5%+ of outstanding shares

Macquarie Group Limited

SC 13G/A · Nov 13, 2025

4.6%

2.3M shares

BlackRock, Inc.

SC 13G/A · Oct 17, 2025

7.8%

3.9M shares

Macquarie Group Limited

SC 13G · Aug 12, 2025

5.1%

2.5M shares

Wellington Management Group LLP

SC 13G · Aug 12, 2025

8.0%

4.0M shares

4.4%

2.1M shares

Hood River Capital Management LLC

SC 13G/A · Feb 14, 2025

6.0%

2.9M shares

5.8%

2.8M shares

5.7%

2.8M shares

AllianceBernstein L.P. 13-4064930

SC 13G/A · Feb 14, 2024

7.2%

3.4M shares

The Vanguard Group - 23-1945930

SC 13G/A · Feb 13, 2024

10.1%

4.8M shares

Invesco Ltd. 98-0557567

SC 13G/A · Feb 1, 2024

2.5%

1.2M shares

BlackRock, Inc.

SC 13G/A · Jan 25, 2024

8.8%

4.2M shares

The Vanguard Group - 23-1945930

SC 13G/A · Dec 8, 2023

10.0%

4.7M shares

Alger Associates, Inc. 13-3017981

SC 13G/A · Feb 14, 2023

3.8%

1.8M shares

AllianceBernstein L.P. 13-4064930

SC 13G/A · Feb 14, 2023

7.7%

3.6M shares

BlackRock, Inc.

SC 13G/A · Feb 3, 2023

8.0%

3.7M shares

Invesco Ltd. 98-0557567

SC 13G/A · Feb 3, 2023

7.2%

3.4M shares

Alger Associates, Inc. 13-3017981

SC 13G/A · Feb 14, 2022

7.1%

3.2M shares

AllianceBernstein L.P. 13-4064930

SC 13G · Feb 14, 2022

7.5%

3.5M shares

4.2%

1.9M shares

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