242 institutions reported holding $1.28B of PROASSURANCE CORP (PRA) in SEC 13F filings for 2026-03-31. Largest institutional holders: BlackRock, Inc. ($179.9M), Magnetar Financial LLC ($80.3M), VANGUARD PORTFOLIO MANAGEMENT LLC ($68.7M), VANGUARD CAPITAL MANAGEMENT LLC ($55.4M), ALLIANCEBERNSTEIN L.P. ($49.1M). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | BlackRock, Inc. | $179.9M | 7.3M | Trimmed |
| 2 | Magnetar Financial LLC | $80.3M | 3.2M | Trimmed |
| 3 | VANGUARD PORTFOLIO MANAGEMENT LLC | $68.7M | 2.8M | New |
| 4 | VANGUARD CAPITAL MANAGEMENT LLC | $55.4M | 2.2M | New |
| 5 | ALLIANCEBERNSTEIN L.P. | $49.1M | 2.0M | Added |
| 6 | STATE STREET CORP | $47.0M | 1.9M | Added |
| 7 | HSBC HOLDINGS PLC | $38.9M | 1.6M | Trimmed |
| 8 | GLAZER CAPITAL, LLC | $38.2M | 1.5M | Added |
| 9 | Westchester Capital Management, LLC | $36.0M | 1.5M | Trimmed |
| 10 | DIMENSIONAL FUND ADVISORS LP | $35.7M | 1.4M | Trimmed |
| 11 | MORGAN STANLEY | $35.6M | 1.4M | Added |
| 12 | NEXPOINT ASSET MANAGEMENT, L.P. | $35.0M | 1.4M | Added |
| 13 | GEODE CAPITAL MANAGEMENT, LLC | $30.0M | 1.2M | Added |
| 14 | Qube Research & Technologies Ltd | $29.6M | 1.2M | Trimmed |
| 15 | MILLENNIUM MANAGEMENT LLC | $26.8M | 1.1M | Added |
| 16 | RENAISSANCE TECHNOLOGIES LLC | $23.9M | 964,900 | Added |
| 17 | ALPINE ASSOCIATES MANAGEMENT INC. | $23.4M | 945,590 | Added |
| 18 | MARSHALL WACE, LLP | $20.6M | 833,726 | Added |
| 19 | GOLDMAN SACHS GROUP INC | $19.0M | 769,903 | Added |
| 20 | JANUS HENDERSON GROUP PLC | $16.8M | 678,775 | Trimmed |
| 21 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $16.2M | 656,614 | Trimmed |
| 22 | Hudson Bay Capital Management LP | $14.2M | 575,000 | Hold |
| 23 | NORTHERN TRUST CORP | $13.5M | 546,089 | Added |
| 24 | AQR Arbitrage LLC | $13.4M | 543,904 | Added |
| 25 | Amundi | $13.3M | 538,650 | Added |
Source: SEC Form 13F filings · as of 2026-03-31