FORM4API
ExploreSearch any company or insiderFilingsThe newest Form 4 filings, market-wideForm 144Intent to sell, filed before the trade13F FilersInstitutional 13F-HR filers by AUMSignalsCluster buy & sell signalsScreenerFilter trades by code, size & returnCongressSTOCK Act trades disclosed by Congress
PricingDocs
SEC Form 4 explainedSEC Form 144 explained13F-HR filings explainedCluster buy signals10b5-1 trading plans
All guides →
Sign inGet a keyDashboard

Company profile

AtriCure, Inc. Insider Trading

ATRC

Every SEC Form 4 insider trading filing for AtriCure, Inc. (ATRC) since April 2023: open-market buys and sells by directors and officers, option exercises, and cluster activity, updated as each filing is reported to the SEC. Why 2023?

Exchange
Nasdaq
Sector
Surgical & Medical Instruments & Apparatus
CIK
0001323885
Filings
133
Insiders
16
Last filing
2026-09-23
SEC EDGAR ↗Yahoo Finance ↗Finviz ↗Stock Analysis ↗

Activity summary

Recent insider activity is bearish. Over the last 30 days, insiders net sold $288K across 1 transaction.

Three year balance

Buy and sell value by quarter, Q4 23 to Q3 26. AtriCure, Inc. insiders are net sellers across the period shown.

PurchasesSales
Q4 23Q1 24Q2 24Q3 24Q4 24Q1 25Q2 25Q3 25Q4 25$5.7MQ1 26Q2 26Q3 26

Bars below the rule are sales, above are purchases. Largest quarter on the chart is $5.7M.

90 day insight

Over the last 90 days, AtriCure, Inc. insiders sold $2.4M across 7 transactions with no open-market purchases.

  • Most active insider: Salvatore Privitera with 4 transactions totaling $895K.
  • Largest single sale: $946K by Sven Wehrwein on Jul 28, 2026.
  • 30% of recent sales were pre-scheduled 10b5-1 trades, typically less informative than open-market activity.

Activity skews bearish: sales outpace buys.

Insider Transactions

Sourced from SEC EDGAR Form 4 filings. Updated hourly.

Showing 5 of 50 transactions. The most significant are picked first.

DateInsiderCompanyTypeSharesPriceValueReturn
Sep 11, 2026Regina E GrovesATRC
Sale
5,313$54.22$288K+3.4% 1w
Aug 24, 2026Karl S. DahlquistATRC
Sale
9,370$48.89$458K+9.2% 1w
Jul 29, 2026Justin J NozneskyATRC
Sale
6,182$38.80$240K+22.6% 1m
Jul 28, 2026Sven WehrweinATRC
Sale
25,000$37.84$946K+22.6% 1m
Jul 28, 2026Vinayak DoraiswamyATRC
Sale
6,000$38.88$233K+22.6% 1m
Sale
$288K
Regina E GrovesSep 11, 2026
5,313 sh @ $54.22 · ATRC+3.4% 1w
Sale
$458K
Karl S. DahlquistAug 24, 2026
9,370 sh @ $48.89 · ATRC+9.2% 1w
Sale
$240K
Justin J NozneskyJul 29, 2026
6,182 sh @ $38.80 · ATRC+22.6% 1m
Sale
$946K
Sven WehrweinJul 28, 2026
25,000 sh @ $37.84 · ATRC+22.6% 1m
Sale
$233K
Vinayak DoraiswamyJul 28, 2026
6,000 sh @ $38.88 · ATRC+22.6% 1m

45 more transactions hidden

Free account · No credit card required

Building something? Get API access →

Query this yourself

The same rows, over the API.

curl "https://api.form4api.com/v1/transactions?ticker=ATRC" \
  -H "X-Api-Key: $KEY"
Get a key

Top insiders

By open-market value traded.

Sven WehrweinDirector1 filing−$946K
Salvatore PriviteraChief Technical Officer3 filings−$880K
Vinayak DoraiswamyChief Scientific Officer3 filings−$523K
Karl S. DahlquistChief Legal Officer1 filing−$458K
Regina E GrovesDirector1 filing−$288K

Institutional Ownership

Top 13F-HR holders of AtriCure, Inc. as of 2026-06-30

↓ decreasing
Total reported AUM
$251.1M
QoQ change
-81.1%
Reporting period
2026-06-30
#1
BlackRock, Inc.
CIK 0002012383
$61.7M
2.2M shares
#2
BlackRock, Inc.
CIK 0002012383
$45.9M
1.6M shares
#3
State Street Corp
CIK 0000093751
$38.9M
1.4M shares

Data source: quarterly 13F-HR filings: institutional holders report positions within 45 days of quarter end. Joined with insider activity above: see who's loading up institutionally while insiders are trading. Full 13F-HR API →

FORM4API

Real-time SEC Form 4, Form 144, 13F-HR and congressional trading data, over a REST API and webhooks.

Data
  • Screener
  • Filings
  • Signals
  • Companies
  • Insiders
  • Congress trades
  • 13F filers
  • Explorer
  • Top insiders
Developers
  • Documentation
  • Insider trading API
  • Python SDK
  • TypeScript SDK
  • MCP server
  • Status
Company
  • Pricing
  • Guides
  • Compare
  • About
  • Data quality
  • Privacy
  • Terms
Form4API, StockholmNot affiliated with the SEC or EDGAR. Data sourced from public EDGAR filings. Not investment advice.

Congressional Trading

Disclosed ATRC trades under the STOCK Act

Total trades
3
Purchases
3
Sales
0
Gilbert Ray Cisneros, Jr.
Democrat · House · CA
3 buys
0 sells

Sourced from U.S. House Clerk periodic transaction reports (House coverage only). Trade counts reflect disclosed filings only. The STOCK Act allows up to 45 days between a trade and its disclosure, so this reflects recent disclosures, not real-time trading. Full congressional trading API →

Popular companies on Form4API

Browse insider trading activity for other actively-filed companies.

TEAMAtlassian CorpLEGLeggett & Platt IncVZVerizon Communications IncTPLTexas Pacific Land CorpCRMSalesforce, Inc.RCGRENN Fund, Inc.METAMeta Platforms, Inc.ACNAccenture plcPPGPpg Industries IncNFLXNetflix IncCHDChurch & Dwight Co Inc