Stocktoria
AtriCure, Inc. ATRC
Nasdaq · XNAS · stock · Surgical & Medical Instruments & Apparatus · website · IPO 2005-08-05
AtriCure, Inc. institutional holders (13F)
| Investor | Shares | Value |
|---|---|---|
| BlackRock Finance, Inc. | 4,615,791 | $105.1M |
| TWO SIGMA INVESTMENTS, LP | 751,003 | $21.4M |
| RENAISSANCE TECHNOLOGIES LLC | 308,700 | $8.8M |
| AQR CAPITAL MANAGEMENT LLC | 186,382 | $5.3M |
| MILLENNIUM MANAGEMENT LLC | 179,886 | $5.1M |
| CITADEL ADVISORS LLC | 87,347 | $2.5M |
| D. E. Shaw & Co., Inc. | 56,589 | $1.6M |
| Bridgewater Associates, LP | 33,517 | $956,240 |
Source: SEC EDGAR filings · CIK 0001323885 · as of 2025-12-31. Facts from filings plus Stocktoria's own computed scores — not investment advice.