809 institutions reported holding $16.45B of Hologic Inc (HOLX) in SEC 13F filings for 2026-03-31. Largest institutional holders: BlackRock, Inc. ($1.70B), VANGUARD CAPITAL MANAGEMENT LLC ($1.10B), STATE STREET CORP ($755.2M), HBK INVESTMENTS L P ($740.8M), VANGUARD PORTFOLIO MANAGEMENT LLC ($727.2M). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | BlackRock, Inc. | $1.70B | 22.5M | Added |
| 2 | VANGUARD CAPITAL MANAGEMENT LLC | $1.10B | 14.5M | New |
| 3 | STATE STREET CORP | $755.2M | 10.0M | Added |
| 4 | HBK INVESTMENTS L P | $740.8M | 9.8M | Added |
| 5 | VANGUARD PORTFOLIO MANAGEMENT LLC | $727.2M | 9.6M | New |
| 6 | FIL Ltd | $591.2M | 7.8M | Added |
| 7 | GEODE CAPITAL MANAGEMENT, LLC | $456.3M | 6.1M | Added |
| 8 | MILLENNIUM MANAGEMENT LLC | $427.6M | 5.7M | Added |
| 9 | UBS Group AG | $384.7M | 5.1M | Added |
| 10 | Balyasny Asset Management L.P. | $357.0M | 4.7M | Added |
| 11 | Pentwater Capital Management LP | $340.2M | 4.5M | Added |
| 12 | MORGAN STANLEY | $270.1M | 3.6M | Added |
| 13 | GLAZER CAPITAL, LLC | $269.4M | 3.6M | Added |
| 14 | JPMORGAN CHASE & CO | $249.4M | 3.3M | Added |
| 15 | Invesco Ltd. | $239.2M | 3.2M | Trimmed |
| 16 | Qube Research & Technologies Ltd | $236.7M | 3.1M | Added |
| 17 | O'Connor Alternative Investments LLC | $235.7M | 3.1M | New |
| 18 | ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | $220.8M | 2.9M | Trimmed |
| 19 | NORTHERN TRUST CORP | $202.3M | 2.7M | Trimmed |
| 20 | GOLDMAN SACHS GROUP INC | $181.1M | 2.4M | Added |
| 21 | UBS AM, A DISTINCT BUSINESS UNIT OF UBS ASSET MANAGEMENT AMERICAS LLC | $173.8M | 2.3M | Added |
| 22 | BANK OF AMERICA CORP /DE/ | $170.4M | 2.3M | Trimmed |
| 23 | TUDOR INVESTMENT CORP ET AL | $166.1M | 2.2M | Added |
| 24 | DEUTSCHE BANK AG\ | $164.3M | 2.2M | Added |
| 25 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $163.1M | 2.2M | Added |
Source: SEC Form 13F filings · as of 2026-03-31