ATRCNasdaq · Surgical & Medical Instruments & Apparatus

AtriCure, Inc.

Alert me on ATRC

Insider buys, 6 months

Congress trades, 6 months

Signals, 6 months

Six months

After each filing

Oct 12 Sale Rep. Gilbert Cisneros House

1 week

+1.4%S&P −1.2%

1 month

Result in13 trading days

3 months

Result in55 trading days

6 months

Result in118 trading days

Sep 25 Sale Privitera Salvatore Insider

1 week

−5.5%S&P −0.2%

1 month

Result in1 trading day

3 months

Result in43 trading days

6 months

Result in106 trading days

Sep 15 Sale GROVES REGINA E Insider

1 week

+4.6%S&P +2.4%

1 month

+1.9%S&P +1.9%

3 months

Result in35 trading days

6 months

Result in98 trading days

Sep 10 Buy Rep. Gilbert Cisneros House

1 week

+6.5%S&P −0.1%

1 month

+5.0%S&P +2.1%

3 months

Result in33 trading days

6 months

Result in96 trading days

Sep 10 Sale Privitera Salvatore Insider

1 week

+11.6%S&P +0.6%

1 month

+5.4%S&P +3.0%

3 months

Result in32 trading days

6 months

Result in95 trading days

Show all 21

Sep 4 Sale Privitera Salvatore Insider

1 week

+8.3%S&P −1.2%

1 month

+4.2%S&P +1.4%

3 months

Result in29 trading days

6 months

Result in92 trading days

Aug 26 Sale Dahlquist Karl S. Insider

1 week

+9.2%S&P −0.1%

1 month

+21.2%S&P +0.9%

3 months

Result in22 trading days

6 months

Result in85 trading days

Aug 7 Sale Prange Karen Insider

1 week

+7.0%S&P +0.4%

1 month

+29.8%S&P −0.9%

3 months

Result in9 trading days

6 months

Result in72 trading days

Aug 7 Sale Yuen Maggie Insider

1 week

+7.0%S&P +0.4%

1 month

+29.8%S&P −0.9%

3 months

Result in9 trading days

6 months

Result in72 trading days

Jul 31 Sale Noznesky Justin J Insider

1 week

+9.6%S&P +3.5%

1 month

+28.0%S&P +2.7%

3 months

Result in4 trading days

6 months

Result in67 trading days

Jul 31 Sale Doraiswamy Vinayak Insider

1 week

+9.6%S&P +3.5%

1 month

+28.0%S&P +2.7%

3 months

Result in4 trading days

6 months

Result in67 trading days

Jul 31 Sale WEHRWEIN SVEN Insider

1 week

+9.6%S&P +3.5%

1 month

+28.0%S&P +2.7%

3 months

Result in4 trading days

6 months

Result in67 trading days

May 22 Sale Prange Karen Insider

1 week

−6.4%S&P +1.7%

1 month

0.0%S&P −1.4%

3 months

+74.2%S&P +2.7%

6 months

Result in20 trading days

May 19 Sale Doraiswamy Vinayak Insider

1 week

−4.7%S&P +2.3%

1 month

0.0%S&P +2.0%

3 months

+65.3%S&P +5.1%

6 months

Result in17 trading days

Apr 7 Buy Rep. Gilbert Cisneros House

1 week

+4.1%S&P +3.5%

1 month

−1.5%S&P +8.2%

3 months

+22.5%S&P +11.5%

6 months

+88.9%S&P +15.6%

Mar 16 Sale Doraiswamy Vinayak Insider

1 week

−2.2%S&P −1.8%

1 month

−3.5%S&P +4.9%

3 months

−8.1%S&P +13.1%

6 months

+84.7%S&P +13.8%

Nov 27, 2025 Sale WEHRWEIN SVEN Insider

1 week

+10.4%S&P +0.3%

1 month

+11.2%S&P +0.8%

3 months

−12.9%S&P −0.2%

6 months

−28.4%S&P +11.8%

Nov 27, 2025 Sale Noznesky Justin J Insider

1 week

+10.4%S&P +0.3%

1 month

+11.2%S&P +0.8%

3 months

−12.9%S&P −0.2%

6 months

−28.4%S&P +11.8%

Nov 25, 2025 Sale Yuen Maggie Insider

1 week

−5.6%S&P +1.3%

1 month

+4.8%S&P +2.6%

3 months

−18.8%S&P +1.9%

6 months

−28.1%S&P +12.7%

Sep 16, 2025 Sale Noznesky Justin J Insider

1 week

+1.9%S&P +0.8%

1 month

+3.0%S&P +1.1%

3 months

+14.1%S&P +3.4%

6 months

−19.8%S&P +0.8%

Jun 6, 2025 Buy Rep. Gilbert Cisneros House

1 week

−5.5%S&P +0.5%

1 month

−6.2%S&P +4.7%

3 months

+5.6%S&P +8.8%

6 months

+13.9%S&P +14.7%

Every purchase and sale on this ticker reported by a member of Congress or an insider, measured from the close of the first trading day after it became public to the close 1 week, 1 month, 3 months and 6 months later, each beside the S&P over the same days.

Filings for ATRC

74 held · newest 574 held · newest 2

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New sources, new features and offers like our founding price. A few times a month at most. Stop any time.

Signal history

No signal for this ticker yet. A signal is written when insider buying here scores one dot or more.

Stakes

Sep 30, 2026 Schedule 13G, amended

BlackRock, Inc.: 15.4%, 7,837,484 shares

Jun 30, 2026 Schedule 13G, amended

AllianceBernstein L.P.: 5.5%, 2,768,365 shares

Mar 31, 2026 Schedule 13G, amended

Wellington Management Group LLP: 6.8%, 3,382,555 shares

Mar 31, 2026 Schedule 13G

Vanguard Capital Management: 5.1%, 2,532,965 shares

Mar 31, 2026 Schedule 13G

Vanguard Portfolio Management: 5.5%, 2,744,685 shares

Mar 13, 2026 Schedule 13G, amended

The Vanguard Group: 0%, 0 shares

Dec 31, 2025 Schedule 13G, amended

Hood River Capital Management LLC: 6.2%, 3,096,611 shares

Sep 30, 2025 Schedule 13G, amended

Macquarie Group Limited: 4.6%, 2,289,369 shares

Sep 30, 2025 Schedule 13G, amended

BlackRock, Inc.: 7.8%, 3,862,837 shares

Schedule 13D is filed within 5 business days of crossing 5 percent by an investor who may seek to influence the company. Schedule 13G is filed by a passive holder, and a large institution has up to 45 days after the quarter end.

Government contracts, last 12 months

Awards of $10M and up, from USAspending · context, not a signal

No contracts of $10M or more in the last 12 months.

Lobbying

Last four quarters

$20KQ4 2025

$20KQ1 2026

$20KQ2 2026

$10KQ3 2026

Down 50 percent from Q2 2026. Reported to the Senate each quarter by the firms it hires.Original report ↗

Read from LDA.gov between Sep 23, 2026 and Oct 1, 2026. Senate Office of Public Records cannot vouch for the data or analyses derived from these data after the data have been retrieved from LDA.gov.