James River Group Holdings, Ltd. (JRVR) Holders & Ownership

James River Group Holdings, Ltd. (JRVR) ownership: GPC Partners Investments (Thames) LP 85% · institutions 87% (13F 2026-03-31). Insider activity, 90 days: 0 sales, 0 open-market buys. SEC EDGAR first-party data.

Top Institutional Holders (13F, rolled up by parent)

Source: SEC Form 13F
HolderSharesMarket Value% OutstandingReported
Gallatin Point Capital LLC5859375.00$36.91M12.7%2026-03-31
Zimmer Partners, LP4591638.00$28.93M9.9%2026-03-31
T. Rowe Price4494651.00$28.32M9.7%2026-03-31
BlackRock3140842.00$19.79M6.8%2026-03-31
Enstar Group LTD2590765.00$16.32M5.6%2026-03-31
Continental General Insurance Co2520242.00$15.88M5.5%2026-03-31
Vanguard2307572.00$14.54M5.0%2026-03-31
Donald Smith & CO., Inc.1820969.00$11.47M3.9%2026-03-31

Insider Trading Activity (Form 4)

Source: SEC Form 4
InsiderTransactionValueDate
Sellnull2026-08-12
Sellnull2026-08-06
Buynull2026-05-04
Sellnull2026-05-04
Buynull2026-03-05
Buynull2026-03-05
Sellnull2026-03-05
Buynull2026-03-05

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Institutional data from SEC Form 13F. Insider data from SEC Form 4. Congressional data from STOCK Act disclosures. Not personalized investment advice.