About this page
Insider trades reported on SEC Form 4: when the people who run a company buy or sell its shares with their own money.
How to read it
- Form 4
- The form a company insider (officer, director or owner of more than 10%) must file with the SEC within two business days of buying or selling the company's shares.
- Buy (P) and Sell (S)
- Open-market purchases and sales. Gifts, option exercises and automatic tax withholding are left out because they say little about what the insider thinks.
- Value
- Shares times price, as reported on the filing.
- 10b5-1
- A trade made under a plan set up in advance. Planned sales are common and usually say less than an unplanned purchase.
- Late filing
- A Form 4 filed more than two business days after the trade.
- Vs. S&P 500
- How the stock did after the trade minus how the overall market did in the same weeks.
A real example
In January 2016, when bank stocks were falling, JPMorgan Chase CEO Jamie Dimon bought 500,000 JPMorgan shares with his own money, worth about $26 million. His Form 4 made the purchase public within days, and investors read it as a strong sign of confidence.
Explain it like I'm 13
If the coach of a team bets his own allowance that his team will win, that tells you something. A Form 4 is the note a company boss must hand in whenever he buys or sells his own company's shares, so everyone can see it.
Data from public SEC filings and congressional reports. Information, not investment advice. Check every number against the filing linked on the page.
AtriCure, Inc. (ATRC): Insider Trades and Fund Holdings
In the past 12 months, AtriCure, Inc. insiders reported no open-market purchases and 10 sales worth $3.32M; 3 of the sales were reported as made under a 10b5-1 trading plan.
Timeline: news and trades
Company filings (8-K), insider trades, notices of planned sales (Form 144), Congress trades and fund moves in the past year, newest first.
- Sep 29, 2026CongressRep. Gilbert Ray Cisneros, Jr. partial sell $1K–$15K
- Sep 23, 2026Insider saleChief Technical Officer Salvatore Privitera sold $271,140 under a 10b5-1 plan
- Sep 23, 2026Planned saleSALVATORE PRIVITERA (officer) filed notice to sell about $271,140 around Sep 23, 2026
- Sep 11, 2026Insider saleDirector Regina E. Groves sold $288,071
- Sep 11, 2026Planned saleGROVES REGINA E (director) filed notice to sell about $285,096 around Sep 10, 2026
- Sep 8, 2026Insider saleChief Technical Officer Salvatore Privitera sold $201,135 under a 10b5-1 plan
- Sep 8, 2026Planned saleSALVATORE PRIVITERA (officer) filed notice to sell about $201,135 around Sep 8, 2026
- Sep 2, 2026Insider saleChief Technical Officer Salvatore Privitera sold $407,558 under a 10b5-1 plan
- Sep 2, 2026Planned saleSALVATORE PRIVITERA (officer) filed notice to sell about $407,558 around Sep 2, 2026
- Aug 24, 2026Insider saleGeneral Counsel Karl S. Dahlquist sold $458,099
- Aug 24, 2026Planned saleKARL DAHLQUIST (officer) filed notice to sell about $458,091 around Aug 24, 2026
- Aug 20, 2026CongressRep. Gilbert Ray Cisneros, Jr. buy $1K–$15K
- Aug 5, 2026Insider saleDirector Karen Prange sold $138,283
- Aug 5, 2026Insider saleDirector Maggie Yuen sold $134,470
- Aug 5, 2026Planned salePrange Karen (director) filed notice to sell about $138,996 around Aug 5, 2026
- Aug 5, 2026Planned saleMAGGIE YUEN (director) filed notice to sell about $134,468 around Aug 5, 2026
- Jul 29, 2026Insider saleChief Mktg & Strategy Officer Justin J. Noznesky sold $239,862
- Jul 29, 2026Planned saleNoznesky Justin J (officer) filed notice to sell about $239,882 around Jul 29, 2026
- Jul 28, 2026Insider saleDirector Sven Wehrwein sold $946,000
- Jul 28, 2026Insider saleChief Scientific Officer Vinayak Doraiswamy sold $233,280
- Jul 28, 2026Planned saleSVEN WEHRWEIN (director) filed notice to sell about $964,444 around Jul 28, 2026
- Jul 28, 2026Planned saleVINAYAK DORAISWAMY (officer) filed notice to sell about $233,279 around Jul 28, 2026
- Jun 30, 2026FundBridgewater Associates added 128% in Q2 2026 (13F filed Aug 14, 2026)
- Jun 30, 2026FundRenaissance Technologies cut 24% in Q2 2026 (13F filed Aug 13, 2026)
- Mar 3, 2026CongressRep. Gilbert Ray Cisneros, Jr. buy $1K–$15K
Recent insider trades
Open-market purchases (code P) and sales (code S) from Form 4. Grants, option exercises and gifts are not shown. Latest filing: Sep 24, 2026.
| Filed | Insider | Type | Value |
|---|---|---|---|
| Sep 24 | Salvatore PriviteraChief Technical Officer | ▼ SELL10b5-1 | $271K |
| Sep 14 | Regina E. GrovesDirector | ▼ SELL | $288K |
| Sep 10 | Salvatore PriviteraChief Technical Officer | ▼ SELL10b5-1 | $201K |
| Sep 4 | Salvatore PriviteraChief Technical Officer | ▼ SELL10b5-1 | $408K |
| Aug 26 | Karl S. DahlquistGeneral Counsel | ▼ SELL | $458K |
| Aug 7 | Karen PrangeDirector | ▼ SELL | $138K |
| Aug 7 | Maggie YuenDirector | ▼ SELL | $134K |
| Jul 30 | Sven WehrweinDirector | ▼ SELL | $946K |
| Jul 30 | Justin J. NozneskyChief Mktg & Strategy Officer | ▼ SELL | $240K |
| Jul 30 | Vinayak DoraiswamyChief Scientific Officer | ▼ SELL | $233K |
Insiders who traded in the past year
| Insider | Role | Buys | Bought | Sells | Sold |
|---|---|---|---|---|---|
| Salvatore Privitera | Chief Technical Officer | 0 | $0 | 3 | $880K |
| Regina E. Groves | Director | 0 | $0 | 1 | $288K |
| Karl S. Dahlquist | General Counsel | 0 | $0 | 1 | $458K |
| Karen Prange | Director | 0 | $0 | 1 | $138K |
| Maggie Yuen | Director | 0 | $0 | 1 | $134K |
| Sven Wehrwein | Director | 0 | $0 | 1 | $946K |
| Justin J. Noznesky | Chief Mktg & Strategy Officer | 0 | $0 | 1 | $240K |
| Vinayak Doraiswamy | Chief Scientific Officer | 0 | $0 | 1 | $233K |
Trades by members of Congress
Reported under the STOCK Act. Amounts are ranges from the form. All Congress trades →
| Filed | Member | Type | Amount |
|---|---|---|---|
| Oct 12 | ▼ PARTIAL SELL | $1K–$15K | |
| Sep 10 | ▲ BUY | $1K–$15K | |
| Apr 7 | ▲ BUY | $1K–$15K |
Buybacks and executive pay
| Year | CEO pay reported | CEO pay "actually paid" | Value of $100 invested |
|---|---|---|---|
| 2025 | $9.22M | $14.9M | n/a |
| 2024 | $11.1M | $6.77M | n/a |
| 2023 | $8.75M | $4.76M | n/a |
From the company's XBRL data filed with the SEC. "Actually paid" is the SEC's pay-versus-performance measure, which counts changes in the value of stock awards. "Value of $100 invested" is the company's cumulative shareholder return as reported, usually measured from five years earlier. See all buybacks and CEO pay across companies.
A All 10 insider trades reported on time. How it is graded
Tracked funds that report ATRC
From each fund's latest 13F. Holdings are as of quarter end and are filed up to 45 days later.
| Fund | Shares | Value | Change |
|---|---|---|---|
| Renaissance Technologies | 234,100 | $6.55M | ▼ −24.2% |
| Bridgewater Associates | 76,307 | $2.14M | ▲ +127.7% |
Reading these numbers
Insiders sell for many reasons: taxes, diversification, a house. Purchases with their own money are rarer and are usually read as more informative. A Form 4 is due within two business days of the trade. How to read a Form 4 →