Quick Takeaways
- Zimmer Partners, LP filed SCHEDULE 13G/A for James River Group Holdings, Ltd. Common Shares, par value $0.0002 per share (JRVR).
- Disclosed ownership: 10%.
- Date of event: 30 Sep 2025.
Zimmer Partners, LP - 30 Sep 2025 SCHEDULE 13G/A Report for James River Group Holdings, Ltd. Common Shares, par value $0.0002 per share (JRVR)
- Filing Manager
- Zimmer Partners, LP
- Reporting Manager
- Zimmer Partners, LP
- Symbol
- JRVR
- Shares outstanding
- 45,916,380 shares
- Disclosed Ownership
- 4,591,638 shares
- Ownership
- 10%
- Form type
- SCHEDULE 13G/A
- Filing time
- 12 Nov 2025, 12:19:20 UTC
- Date of event
- 30 Sep 2025
- Previous filing
- 14 Aug 2025
- SEC
- View on sec.gov
Quoteable Key Fact
"Zimmer Partners, LP disclosed 10% ownership in James River Group Holdings, Ltd. Common Shares, par value $0.0002 per share (JRVR) on 30 Sep 2025."
What Changed
- Previous schedule filing date: 14 Aug 2025.
- Current filing was accepted on 12 Nov 2025, 12:19.
Why This Matters
- This page explains what this Schedule 13D/13G filing tells you before manager-level rows.
- You can verify ownership claims directly against the original SEC filing.
Source Evidence
Backed by Schedule 13D/13G
See Original Filing
Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.
Reporting Managers (4)
| Name | Ownership | Shares Owned | sole voting power | shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| Zimmer Partners, LP | 10% | 4,591,638 | 0 | 4,591,638 | /s/ Jelena Napolitano | Jelena Napolitano/ Authorized Person | |
| Zimmer Financial Services Group LLC | 10% | 4,591,638 | 0 | 4,591,638 | /s/ Stuart J. Zimmer | Stuart J. Zimmer / Director | |
| Zimmer Partners GP, LLC | 10% | 4,591,638 | 0 | 4,591,638 | /s/ Stuart J. Zimmer | Stuart J. Zimmer / Director, Zimmer Financial Services Group LLC, its Managing Member | |
| Stuart J. Zimmer | 10% | 4,591,638 | 0 | 4,591,638 | /s/ Stuart J. Zimmer | Stuart J. Zimmer / Self |