🕵️ Atricure, Inc. ($ATRC)
SEC insider & ownership activity, last 12 months · CIK 1323885 · every row links its SEC filing
Over the last 12 months insiders sold $4.1M with no open-market buying against it. Wehrwein Sven sold $1.3M in discretionary trades (Nov–Jul). HOOD River Capital Management LLC added 6.0% → 6.2%. No red-flag 8-Ks in the window.
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Monthly net open-market insider flow, last 12 months (up = net buying)
Insider flow
0 buyers, $0 (0 lots) · 8 sellers, $4.1M (16 lots)
| Insider | Buys | Bought | Sells | Sold | Last |
|---|---|---|---|---|---|
| Wehrwein Sven | 0 | – | 3 | $1.3M | Jul 28, 2026 |
| Privitera Salvatore | 0 | – | 2 | $609K | Sep 8, 2026 |
| Doraiswamy Vinayak | 0 | – | 3 | $523K | Jul 28, 2026 |
| Karl S. Dahlquist | 0 | – | 1 | $458K | Aug 24, 2026 |
| Justin J. Noznesky | 0 | – | 2 | $433K | Jul 29, 2026 |
| Regina E. Groves | 0 | – | 1 | $288K | Sep 11, 2026 |
| Yuen Maggie | 0 | – | 2 | $242K | Aug 5, 2026 |
| Prange Karen | 0 | – | 2 | $224K | Aug 5, 2026 |
5%+ holders
| Holder | Stake | Class | Schedule | Event | |
|---|---|---|---|---|---|
| BlackRock, Inc. | 7.8% | 13G | Oct 17, 2025 | filing ↗ | |
| Wellington Management Group LLP | 6.8% | 13G | May 15, 2026 | filing ↗ | |
| Wellington Group Holdings LLP | 6.8% | 13G | May 15, 2026 | filing ↗ | |
| Wellington Investment Advisors Holdings LLP | 6.8% | 13G | May 15, 2026 | filing ↗ | |
| HOOD River Capital Management LLC | 6.2% | 13G | Feb 17, 2026 | filing ↗ | |
| Vanguard Portfolio Management | 5.5% | 13G | Apr 28, 2026 | filing ↗ | |
| AllianceBernstein L.p. | 5.5% | 13G | Aug 14, 2026 | filing ↗ | |
| Wellington Management Company LLP | 5.5% | 13G | May 15, 2026 | filing ↗ | |
| Vanguard Capital Management | 5.1% | 13G | Apr 29, 2026 | filing ↗ |
Planned insider sales (Form 144)
| Seller | Planned | Approx. sale date | |
|---|---|---|---|
| Regina E. Groves | $285K | Sep 10, 2026 | filing ↗ |
| Salvatore Privitera | $201K | Sep 8, 2026 | filing ↗ |
| Salvatore Privitera | $408K | Sep 2, 2026 | filing ↗ |
| Karl Dahlquist | $458K | Aug 24, 2026 | filing ↗ |
| Prange Karen | $139K | Aug 5, 2026 | filing ↗ |
| Maggie Yuen | $134K | Aug 5, 2026 | filing ↗ |
| Justin J. Noznesky | $240K | Jul 29, 2026 | filing ↗ |
| Vinayak Doraiswamy | $233K | Jul 28, 2026 | filing ↗ |
| Sven Wehrwein | $964K | Jul 28, 2026 | filing ↗ |
| Prange Karen | $86K | May 20, 2026 | filing ↗ |
| Vinayak Doraiswamy | $141K | May 15, 2026 | filing ↗ |
| Vinayak Doraiswamy | $149K | Mar 12, 2026 | filing ↗ |
| Justin J. Noznesky | $193K | Nov 26, 2025 | filing ↗ |
| Sven Wehrwein | $189K | Nov 25, 2025 | filing ↗ |
| Sven Wehrwein | $188K | Nov 24, 2025 | filing ↗ |
| Maggie Yuen | $107K | Nov 21, 2025 | filing ↗ |
Material events (8-K)
| Item | Event date | |
|---|---|---|
| Earnings (2.02) | Jul 23, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jul 23, 2026 | filing ↗ |
| Officer/director changes (5.02) | May 18, 2026 | filing ↗ |
| Shareholder vote (5.07) | May 18, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 18, 2026 | filing ↗ |
| Earnings (2.02) | May 5, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 5, 2026 | filing ↗ |
| Earnings (2.02) | May 5, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 5, 2026 | filing ↗ |
| Earnings (2.02) | Feb 17, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Feb 17, 2026 | filing ↗ |
| Material agreement (1.01) | Jan 9, 2026 | filing ↗ |
| Earnings (2.02) | Jan 9, 2026 | filing ↗ |
| New financial obligation (2.03) | Jan 9, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jan 9, 2026 | filing ↗ |
| Earnings (2.02) | Oct 29, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Oct 29, 2025 | filing ↗ |
| Earnings (2.02) | Oct 29, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Oct 29, 2025 | filing ↗ |