AtriCure, Inc.
Total Trades
26
Buys
1
Sells
23
Largest Trade
$100K–$500K
Insiders
8
Institutional Funds
189
Inst. Value
$1M+
Activist Filings
20
Insider Trades
| Insider | Title | Type | Value | Shares | Price | Date |
|---|---|---|---|---|---|---|
| WEHRWEIN SVEN | Director | SELL | $100K–$500K | 10K | $37.66 | Nov 26, 2025 |
| WEHRWEIN SVEN | Director | EXERCISE | $100K–$500K | 10K | $19.95 | Nov 26, 2025 |
| Noznesky Justin J | Chief Mktg & Strat… | SELL | $100K–$500K | 5K | $37.29 | Nov 26, 2025 |
| Yuen Maggie | Director | SELL | $100K–$500K | 3K | $35.72 | Nov 25, 2025 |
| Noznesky Justin J | Chief Mktg & Strat… | SELL | $100K–$500K | 3K | $36.30 | Sep 16, 2025 |
| WEHRWEIN SVEN | Director | EXERCISE | $50K–$100K | 5K | $19.95 | Aug 26, 2025 |
| WEHRWEIN SVEN | Director | SELL | $100K–$500K | 5K | $37.00 | Aug 26, 2025 |
| Doraiswamy Vinayak | Chief Scientific O… | SELL | $50K–$100K | 3K | $33.44 | May 30, 2025 |
| Yuen Maggie | Director | SELL | $50K–$100K | 4K | $24.07 | Aug 19, 2024 |
| Privitera Salvatore | Chief Technical Of… | BUY | $100K–$500K | 5K | $22.25 | May 31, 2024 |
| Noznesky Justin J | Chief Mktg & Strat… | SELL | $15K–$50K | 2K | $24.09 | May 3, 2024 |
| Noznesky Justin J | Chief Mktg & Strat… | SELL | $15K–$50K | 2K | $30.39 | Apr 3, 2024 |
| Dahlquist Karl S. | Chief Legal Officer | SELL | $50K–$100K | 2K | $32.16 | Mar 20, 2024 |
| Dahlquist Karl S. | Chief Legal Officer | SELL | $15K–$50K | 1K | $34.43 | Nov 3, 2023 |
| Dahlquist Karl S. | Chief Legal Officer | SELL | $100K–$500K | 3K | $57.09 | Jul 28, 2023 |
| Prange Karen | Director | SELL | $15K–$50K | 713 | $47.89 | Jun 12, 2023 |
| Dahlquist Karl S. | Chief Legal Officer | SELL | $50K–$100K | 1K | $47.03 | Jun 7, 2023 |
| Yuen Maggie | Director | SELL | $100K–$500K | 4K | $47.04 | May 30, 2023 |
| Dahlquist Karl S. | Chief Legal Officer | SELL | $100K–$500K | 4K | $44.83 | May 3, 2023 |
| Doraiswamy Vinayak | Chief Scientific O… | SELL | $100K–$500K | 5K | $45.99 | Sep 19, 2022 |
| Austin Tonya | CHRO | SELL | $100K–$500K | 3K | $42.69 | May 17, 2022 |
| Austin Tonya | CHRO | SELL | $15K–$50K | 282 | $61.59 | Apr 12, 2022 |
| Austin Tonya | CHRO | SELL | $50K–$100K | 1K | $67.66 | Mar 7, 2022 |
| Austin Tonya | CHRO | SELL | $100K–$500K | 5K | $70.04 | Mar 4, 2022 |
| Austin Tonya | CHRO | SELL | $100K–$500K | 2K | $67.97 | Feb 15, 2022 |
| Austin Tonya | CHRO | SELL | $100K–$500K | 3K | $66.11 | Jan 18, 2022 |
Institutional Ownership
13F filings as of Dec 31, 2025 · 189 funds holding
| Fund | Shares | Value | Type |
|---|---|---|---|
| ALLIANCEBERNSTEIN L.P. | 3.6M | $1M+ | SH |
| NOMURA ASSET MANAGEMENT INTERNATIONAL INC. | 2.0M | $1M+ | SH |
| STATE STREET CORP | 1.2M | $1M+ | SH |
| First Light Asset Management, LLC | 1.2M | $1M+ | SH |
| Champlain Investment Partners, LLC | 1.2M | $1M+ | SH |
| GEODE CAPITAL MANAGEMENT, LLC | 1.0M | $1M+ | SH |
| Neuberger Berman Group LLC | 1.0M | $1M+ | SH |
| BNP Paribas Asset Management Holding S.A. | 958K | $1M+ | SH |
| GW&K Investment Management, LLC | 894K | $1M+ | SH |
| DIMENSIONAL FUND ADVISORS LP | 856K | $1M+ | SH |
| KENNEDY CAPITAL MANAGEMENT LLC | 837K | $1M+ | SH |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | 493K | $1M+ | SH |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 438K | $1M+ | SH |
| Defilade Capital Management, L.P. | 398K | $1M+ | SH |
| WCM INVESTMENT MANAGEMENT, LLC | 373K | $1M+ | SH |
| Connor, Clark & Lunn Investment Management Ltd. | 378K | $1M+ | SH |
| WASATCH ADVISORS LP | 354K | $1M+ | SH |
| Grandeur Peak Global Advisors, LLC | 328K | $1M+ | SH |
| RENAISSANCE TECHNOLOGIES LLC | 322K | $1M+ | SH |
| Point72 Asset Management, L.P. | 278K | $1M+ | SH |
Activist & 5%+ Owners
SC 13D/13G filings — investors holding 5%+ of outstanding shares
SC 13G/A · Nov 13, 2025
4.6%
2.3M shares
SC 13G/A · Oct 17, 2025
7.8%
3.9M shares
SC 13G · Aug 12, 2025
5.1%
2.5M shares
Wellington Management Group LLP
SC 13G · Aug 12, 2025
8.0%
4.0M shares
Champlain Investment Partners, LLC
SC 13G · May 14, 2025
4.4%
2.1M shares
Hood River Capital Management LLC
SC 13G/A · Feb 14, 2025
6.0%
2.9M shares
Hood River Capital Management LLC 46-1294859
SC 13G · Nov 14, 2024
5.8%
2.8M shares
Champlain Investment Partners, LLC
SC 13G · Nov 12, 2024
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
SC 13G/A · Feb 1, 2024
2.5%
1.2M shares
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
SC 13G/A · Feb 3, 2023
8.0%
3.7M shares
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
T. ROWE PRICE ASSOCIATES, INC. 52-0556948
SC 13G/A · Feb 14, 2022
4.2%
1.9M shares