ATRICURE INC (ATRC) Institutional Ownership Changes & 13F Activity
ATRICURE INC (ATRC). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings (Q4 2025). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include Wellington Management Group Llp, Alliancebernstein L.P., Hood River Capital Management Llc, Nomura Asset Management International Inc., and First Light Asset Management, Llc.
| Institution | Type | Change in shares | Change Position % | Shares | Reported stock balance | Portfolio quarter | Filing date |
|---|---|---|---|---|---|---|---|
| Ensign Peak Advisors, Inc | Sell | -13,000 | -76.0% | 4,115 | $162.79K | Q4 2025 | Aug 18, 2026 |
| Algert Global Llc | Buy | +114,439 | +77.8% | 261,477 | $10.34M | Q4 2025 | Aug 11, 2026 |
| Hsbc Holdings Plc | Buy | +17,224 | — | 17,224 | $685.65K | Q4 2025 | Mar 06, 2026 |
| Sunbelt Securities, Inc. | Buy | +7 | — | 7 | $277.00 | Q4 2025 | Feb 20, 2026 |
| Raymond James Financial Inc | Buy | +217,462 | — | 217,462 | $8.74M | Q4 2025 | Feb 18, 2026 |
| Mackenzie Financial Corp | Buy | +13,597 | — | 13,597 | $545.25K | Q4 2025 | Feb 18, 2026 |
| Wellington Management Group Llp | Buy | +3,917,991 | — | 3,917,991 | $155.00M | Q4 2025 | Feb 17, 2026 |
| Alliancebernstein L.P. | Buy | +3,563,582 | — | 3,563,582 | $140.98M | Q4 2025 | Feb 17, 2026 |
| Hood River Capital Management Llc | Buy | +3,096,611 | — | 3,096,611 | $122.50M | Q4 2025 | Feb 17, 2026 |
| Nomura Asset Management International Inc. | Buy | +2,038,703 | — | 2,038,703 | $80.65M | Q4 2025 | Feb 17, 2026 |
| First Light Asset Management, Llc | Buy | +1,175,445 | — | 1,175,445 | $46.50M | Q4 2025 | Feb 17, 2026 |
| Bank Of America Corp | Buy | +675,731 | — | 675,731 | $26.73M | Q4 2025 | Feb 17, 2026 |
| Dafna Capital Management Llc | Buy | +597,431 | — | 597,431 | $23.63M | Q4 2025 | Feb 17, 2026 |
| Northern Trust Corp | Buy | +438,210 | — | 438,210 | $17.34M | Q4 2025 | Feb 17, 2026 |
| Two Sigma Investments, Lp | Buy | +380,499 | — | 380,499 | $15.05M | Q4 2025 | Feb 17, 2026 |
| Qube Research & Technologies Ltd | Buy | +290,540 | — | 290,540 | $11.49M | Q4 2025 | Feb 17, 2026 |
| Fmr Llc | Buy | +285,759 | — | 285,759 | $11.30M | Q4 2025 | Feb 17, 2026 |
| Point72 Asset Management, L.P. | Buy | +277,924 | — | 277,924 | $10.99M | Q4 2025 | Feb 17, 2026 |
| Two Sigma Advisers, Lp | Buy | +277,700 | — | 277,700 | $10.99M | Q4 2025 | Feb 17, 2026 |
| Citadel Advisors Llc | Buy | +242,741 | — | 242,741 | $9.60M | Q4 2025 | Feb 17, 2026 |
| Amundi | Buy | +230,852 | — | 230,852 | $9.13M | Q4 2025 | Feb 17, 2026 |
| Voloridge Investment Management, Llc | Buy | +220,290 | — | 220,290 | $8.71M | Q4 2025 | Feb 17, 2026 |
| Oberweis Asset Management Inc/ | Buy | +217,992 | — | 217,992 | $8.62M | Q4 2025 | Feb 17, 2026 |
| Osterweis Capital Management Inc | Buy | +203,575 | — | 203,575 | $8.05M | Q4 2025 | Feb 17, 2026 |
| State Of Wisconsin Investment Board | Buy | +164,199 | — | 164,199 | $6.50M | Q4 2025 | Feb 17, 2026 |
| Millennium Management Llc | Buy | +163,795 | — | 163,795 | $6.48M | Q4 2025 | Feb 17, 2026 |
| Adage Capital Partners Gp, L.L.C. | Buy | +110,210 | — | 110,210 | $4.36M | Q4 2025 | Feb 17, 2026 |
| Aqr Capital Management Llc | Buy | +99,956 | — | 99,956 | $3.95M | Q4 2025 | Feb 17, 2026 |
| Susquehanna Portfolio Strategies, Llc | Buy | +86,325 | — | 86,325 | $3.42M | Q4 2025 | Feb 17, 2026 |
| Trexquant Investment Lp | Buy | +77,667 | — | 77,667 | $3.07M | Q4 2025 | Feb 17, 2026 |
Frequently asked questions about ATRC activity
Which institutional owners are buying ATRC?
Institutional owners buying ATRC include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.
What does "buy" mean in ATRC activity?
"Buy" means an investor increased their reported position in ATRC compared to the prior reporting period. This reflects growing exposure to ATRICURE INC (ATRC) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).
Is institutional interest in ATRC increasing?
Institutional interest in ATRC can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.
Related ATRC Institutional Insights
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