AtriCure, Inc. (ATRC) Insider Trading
Over the last 3 months, ATRC insiders made 0 open-market buys and 5 sales, a net sale of -$1.6M (SEC Form 4). Over the last 6 months, 191 institutions increased and 140 reduced their position (13F).
Insider Activity
Sentiment
0/100
Buys (3m)
0
Sells (3m)
5
Net (3m)
-$1.6M
Insider trades by month Buys Sells
Aug
Sep
Nov
Mar
May
Jul
Context3-month price +38%Institutions accumulating (13F)
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| Jul 30, 2026 | Noznesky Justin Jofficer: Chief Mktg & Strategy Officer | Sell | 6,182 | $38.80 |
| Jul 30, 2026 | WEHRWEIN SVENdirector | Option | 25,000 | $19.95 |
| Jul 30, 2026 | Doraiswamy Vinayakofficer: Chief Scientific Officer | Sell | 6,000 | $38.88 |
| Jul 30, 2026 | WEHRWEIN SVENdirector | Sell | 25,000 | $37.84 |
| Jul 2, 2026 | Doraiswamy Vinayakofficer: Chief Scientific Officer | Grant | 636 | $23.78 |
| Jul 2, 2026 | CARREL MICHAEL Hdirector, officer: President, CEO, & Director | Grant | 636 | $23.78 |
| Jul 2, 2026 | Privitera Salvatoreofficer: Chief Technical Officer | Grant | 636 | $23.78 |
| Jul 2, 2026 | Seith Douglas Jofficer: Chief Operating Officer | Grant | 527 | $23.78 |
| Jul 2, 2026 | Dahlquist Karl S.officer: Chief Legal Officer | Grant | 636 | $23.78 |
| May 22, 2026 | Prange Karendirector | Sell | 3,000 | $28.65 |
| May 20, 2026 | Telman Deborah Hdirector | Grant | 6,144 | — |
| May 20, 2026 | GROVES REGINA Edirector | Grant | 6,144 | — |
| May 20, 2026 | WEHRWEIN SVENdirector | Grant | 6,144 | — |
| May 20, 2026 | Nachman Shlomodirector | Grant | 6,144 | — |
| May 20, 2026 | JOHNSON B KRISTINEdirector | Grant | 6,144 | — |
| May 20, 2026 | Yuen Maggiedirector | Grant | 6,144 | — |
| May 20, 2026 | Prange Karendirector | Grant | 6,144 | — |
| May 20, 2026 | WHITE ROBERT S.director | Grant | 6,144 | — |
| May 18, 2026 | Doraiswamy Vinayakofficer: Chief Scientific Officer | Sell | 5,000 | $28.13 |
| Mar 16, 2026 | Doraiswamy Vinayakofficer: Chief Scientific Officer | Sell | 5,000 | $29.83 |
| Mar 12, 2026 | WHITE ROBERT S.director | Option | 10,000 | $14.99 |
| Jan 2, 2026 | Seith Douglas Jofficer: Chief Operating Officer | Grant | 257 | $27.37 |
| Nov 26, 2025 | WEHRWEIN SVENdirector | Option | 5,033 | $19.95 |
| Nov 26, 2025 | Noznesky Justin Jofficer: Chief Mktg & Strategy Officer | Sell | 5,166 | $37.29 |
| Nov 26, 2025 | WEHRWEIN SVENdirector | Sell | 4,967 | $38.00 |
| Nov 26, 2025 | WEHRWEIN SVENdirector | Sell | 5,033 | $37.32 |
| Nov 26, 2025 | WEHRWEIN SVENdirector | Option | 4,967 | $19.95 |
| Nov 25, 2025 | Yuen Maggiedirector | Sell | 3,000 | $35.72 |
| Sep 16, 2025 | Noznesky Justin Jofficer: Chief Mktg & Strategy Officer | Sell | 3,000 | $36.30 |
| Aug 26, 2025 | WEHRWEIN SVENdirector | Sell | 5,000 | $37.00 |
Source: ATRC SEC Form 4 filings, latest Jul 30, 2026. For informational purposes only — not investment advice.
Institutional activity (13F)
How institutions changed their ATRC positions over the last 6 months (SEC Form 13F).
Increased
191
New positions
85
Reduced
140
Sold out
59
Largest moves
| Institution | Action | Shares | Filed |
|---|---|---|---|
| BlackRock, Inc. | Increased | 4.5M | Aug 7, 2026 |
| BLACKROCK, INC. | Increased | 4.1M | Feb 12, 2026 |
| BLACKROCK, INC. | Reduced | 4.0M | May 13, 2026 |
| WELLINGTON MANAGEMENT GROUP LLP | Reduced | 3.9M | Feb 17, 2026 |
| ALLIANCEBERNSTEIN L.P. | Increased | 3.6M | Feb 17, 2026 |
| WELLINGTON MANAGEMENT GROUP LLP | Reduced | 3.4M | May 15, 2026 |
| ALLIANCEBERNSTEIN L.P. | Reduced | 3.3M | May 15, 2026 |
| HOOD RIVER CAPITAL MANAGEMENT LLC | Increased | 3.1M | May 15, 2026 |
| HOOD RIVER CAPITAL MANAGEMENT LLC | Increased | 3.1M | Feb 17, 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | New Position | 2.7M | May 8, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | New Position | 2.2M | May 15, 2026 |
| MACQUARIE MANAGEMENT HOLDINGS, INC. | New Position | 2.0M | Feb 17, 2026 |
| MACQUARIE MANAGEMENT HOLDINGS, INC. | Reduced | 1.8M | May 15, 2026 |
| GOLDMAN SACHS GROUP INC | Reduced | 1.7M | May 15, 2026 |
| MARSHALL WACE, LLP | Increased | 1.5M | May 15, 2026 |
Source: SEC Form 13F filings. For informational purposes only — not investment advice.