Proassurance Corporation has 8 Schedule 13D or 13G filings on record since 2025-11-14. 2 holders' latest filing reports 5% or more of common stock, par value $.01. Each figure below is the holder's own, as filed, with the filing linked.
Holders
| Holder | Percent | Shares | Latest | Event date |
|---|---|---|---|---|
| Vanguard Portfolio Management | 5.44% | 2,800,643 | SCHEDULE 13G, 2026-04-29 | 2026-03-31 |
| Vanguard Capital Management | 5.09% | 2,619,108 | SCHEDULE 13G, 2026-04-30 | 2026-03-31 |
| AllianceBernstein L.P. | 3.7% | 1,910,053 | SCHEDULE 13G/A, 2026-02-17 | 2025-12-31 |
| Dimensional Fund Advisors LP | 2.8% | 1,442,782 | SCHEDULE 13G/A, 2026-04-09 | 2026-03-31 |
| The Vanguard Group | 0% | 0 | SCHEDULE 13G/A, 2026-03-27 | 2026-03-13 |
| Magnetar Financial LLC | 0% | 0 | SCHEDULE 13D/A, 2026-06-30 | 2026-06-26 |
Purpose of Transaction (Item 4)
Magnetar Financial LLC
Since the filing of the Schedule 13D on April 4, 2025, on June 26, 2026, the Issuer consummated the merger (the "Merger") pursuant to which each issued and outstanding Share was cancelled and converted into the right to receive $25.00 in cash, without interest. In connection with the Merger, the Reporting Persons' 2,615,966 Shares, which consisted of 896,690 Shares sold for the benefit of PRA Master Fund; 644,313 Shares sold for the benefit of Systematic Master Fund; 290,659 Shares sold for the benefit of the Relative Value Master Fund and 784,304 Shares sold for the benefit of two Managed Accounts, were cancelled and converted into the right to receive $25.00 in cash, without interest.Item 4 of the SCHEDULE 13D/A filed 2026-06-30
Timeline
| Filed | Holder | Percent | Filing |
|---|---|---|---|
| 2025-11-14 | AllianceBernstein L.P. | 5.3% | SCHEDULE 13G |
| 2026-01-30 | The Vanguard Group | 10.3% | SCHEDULE 13G/A |
| 2026-02-17 | AllianceBernstein L.P. | 3.7% | SCHEDULE 13G/A |
| 2026-03-27 | The Vanguard Group | 0% | SCHEDULE 13G/A |
| 2026-04-09 | Dimensional Fund Advisors LP | 2.8% | SCHEDULE 13G/A |
| 2026-04-29 | Vanguard Portfolio Management | 5.44% | SCHEDULE 13G |
| 2026-04-30 | Vanguard Capital Management | 5.09% | SCHEDULE 13G |
| 2026-06-30 | Magnetar Financial LLC | 0% | SCHEDULE 13D/A |
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Where this comes from
Anyone who comes to own more than 5% of a class of a listed company's voting shares has to tell the SEC. A holder who may seek to change or influence the company files Schedule 13D, and has to say in Item 4, "Purpose of Transaction", what it intends to do. A holder with no such intent, such as many index and passive funds, may file the shorter Schedule 13G. Both are amended when the stake changes, including when it falls below 5%.
Every row here is one of those filings, linked to the filing itself. Percentages and share counts are exactly as the holder filed them, for the holder the filing names; an amendment showing a lower figure is shown as filed. Item 4 text is quoted word for word. Where a 13D's Item 4 contains a sentence stating a definite intent to influence the company, that sentence is marked and quoted; the page does not describe the holder or its motives beyond the words it filed. Nothing here is investment advice.