ATRC
AtriCure, Inc.Marquee-fund ownership over time
This quarter's activity
New positions opened
Positions exited
Current holders
Sorted by tenure (longest first)| Fund | First disclosed | Held | Entry price | Latest close | Return on entry |
|---|---|---|---|---|---|
| Bridgewater Associates re-entered | Q3 2021 | 20Q | $73 | $28 | -61% |
| Renaissance Technologies | Q3 2024(8Q snapshot) | 7Q | $21 | $28 | +36% |
| Citadel Advisors | Q3 2024(8Q snapshot) | 7Q | $23 | $28 | +26% |
| Two Sigma Investments | Q3 2024(8Q snapshot) | 7Q | $23 | $28 | +26% |
| D.E. Shaw re-entered | Q3 2024(8Q snapshot) | 7Q | $23 | $28 | +26% |
| AQR Capital Management | Q3 2024(8Q snapshot) | 7Q | $23 | $28 | +26% |
| Millennium Management | Q3 2024(8Q snapshot) | 7Q | $23 | $28 | +26% |
“Return on entry” is the price-only move from the fund's first disclosure to today — it ignores any adds, trims, or dividends. A fund that built its position over multiple quarters has a true cost basis somewhere between entry price and latest close; this figure is the upper bound.
Past holders
Funds that exited at some point| Fund | Last entry | Exited | Entry → Exit | Return |
|---|---|---|---|---|
| Point72 Asset Management 2× in & out | Q1 2026 | Q2 2026 | → $28 | -15% |
| Maverick Capital | Q2 2021 | Q4 2021 | → $75 | +3% |
Insider activity
Form 4 — officers, directors, 10%+ ownersFiled within two business days of each transaction by anyone with material insider status at AtriCure, Inc.. Pair with the holders table above as a sanity check: heavy insider buying alongside marquee-fund accumulation is the strongest accumulation signal; heavy insider selling alongside fund exits is the strongest distribution signal.
30d / 90d windows measured from May 22, 2026 — the most recent Form 4 on file — not from today.
- Form 40001566083-26-000004May 22, 2026
- Form 40001566083-26-000002May 20, 2026
- Form 40001860008-26-000002May 20, 2026
- Form 40001796057-26-000008May 20, 2026
- Form 40002006261-26-000002May 20, 2026
- Form 40001231984-26-000002May 20, 2026
- Form 40001653877-26-000004May 20, 2026
- Form 40001205069-26-000003May 20, 2026
- Form 40001571208-26-000005May 20, 2026
- Form 40001862458-26-000006May 18, 2026
- Form 40001862458-26-000004Mar 16, 2026
- Form 40001571208-26-000002Mar 12, 2026
- Form 40001230584-26-000004Mar 9, 2026
- Form 40001230584-26-000002Mar 3, 2026
- Form 40001666600-26-000002Mar 3, 2026
Fundamentals
XBRL · AtriCure, Inc.Annual figures sourced directly from AtriCure, Inc.'s 10-K / 10-Q filings via SEC EDGAR XBRL. Latest fiscal year and the year-over-year change, with up to ten years of history.
Recent SEC filings
10-K · 10-Q · 8-K · 13D/G · proxyThe most recent material filings for AtriCure, Inc. — earnings, material events, ownership disclosures, proxy statements. Form 4 insider activity is shown in the panel above.
- 8-KMaterial eventMay 19, 2026
- 10-QQuarterly reportMay 6, 2026
- 8-K/AMaterial event (amended)May 6, 2026
- 8-KMaterial eventMay 5, 2026
- DEF 14AProxy statementApr 6, 2026
- 10-KAnnual reportFeb 19, 2026
- 8-KMaterial eventFeb 17, 2026
- 8-KFORM 8-KJan 12, 2026
- 10-QQuarterly reportOct 30, 2025
- 8-K/AMaterial event (amended)Oct 29, 2025
- 8-KMaterial eventOct 29, 2025
- 10-QQuarterly reportJul 30, 2025
- 8-KMaterial eventJul 29, 2025
- 8-KMaterial eventMay 20, 2025
- 10-QQuarterly reportApr 30, 2025
Trade history
Every open→close lifecycle across tracked funds| Fund | Open date | Close date | Open price | Close price / current | Return |
|---|---|---|---|---|---|
| Bridgewater Associates | Q2 2026 | open | $28 | $26 | -8% |
| D.E. Shaw | Q2 2026 | open | $28 | $28 | +1% |
| Point72 Asset Management | Q1 2026 | Q2 2026 | $33 | $28 | -15% |
| Point72 Asset Management | Q2 2025 | Q3 2025 | $32 | $35 | +10% |
| Citadel Advisors | Q3 2024 | open | $23 | $28 | +26% |
| Two Sigma Investments | Q3 2024 | open | $23 | $28 | +26% |
| D.E. Shaw | Q3 2024 | Q4 2025 | $23 | $33 | +46% |
| AQR Capital Management | Q3 2024 | open | $23 | $28 | +26% |
| Millennium Management | Q3 2024 | open | $23 | $28 | +26% |
| Renaissance Technologies | Q3 2024 | open | $21 | $28 | +36% |
| Bridgewater Associates | Q3 2021 | Q1 2025 | $73 | $40 | -46% |
| Maverick Capital | Q2 2021 | Q4 2021 | $73 | $75 | +3% |
- Covers only the 27 marquee funds tracked here, not the full institutional universe. A “0 holders” reading does not mean unowned.
- Heavy funds (Renaissance Technologies, Citadel Advisors, Soros Fund Management, Two Sigma Investments, D.E. Shaw, AQR Capital Management, Millennium Management, Point72 Asset Management) use 8-quarter snapshots, so their pre-2024 history is missing.
- “Current” reflects each fund's most recent 13F — filings lag the actual trade by up to 45 days; positions shown may have changed since.
- Cost = price at the entry filing date. Re-entered positions show the most recent open lot.
- Options, ADRs, and unmapped CUSIPs are excluded from the follower-backtest pipeline that produces these snapshots, so certain holding types won't appear here.