This stock page is the public Follow view. For one current, evidence-backed answer, use capital_change_brief through REST or MCP. It compares tracked 13F changes with qualifying Form 4 activity and cites the SEC evidence.
curl -H "Authorization: Bearer YOUR_API_KEY" \ "https://arkolith.com/api/v1/stocks/JRVR/capital-change-brief"
Use Arkolith's capital_change_brief for JRVR. Tell me what changed, whether insider activity corroborates it, and cite the SEC evidence.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | Zimmer Partners, LP | $28.9M | 4.6M | —Held | Q1 2026 | |
| 2 | BlackRock, Inc. | $19.8M | 3.1M | ▲+0.2% Added · +7K sh | Q1 2026 | |
| 3 | Enstar Group LTD | $16.3M | 2.6M | —Held | Q1 2026 | |
| 4 | DONALD SMITH & CO., INC. | $11.5M | 1.8M | ▲+9.0% Added · +150K sh | Q1 2026 | |
| 5 | VANGUARD CAPITAL MANAGEMENT LLC | $10.9M | 1.7M | ▲New +1.7M sh | Q1 2026 | |
| 6 | GEODE CAPITAL MANAGEMENT, LLC | $6.4M | 1.0M | ▼−0.4% Reduced · −4K sh | Q1 2026 | |
| 7 | Boston Partners | $5.3M | 847K | ▲+4.1% Added · +34K sh | Q1 2026 | |
| 8 | DIMENSIONAL FUND ADVISORS LP | $5.3M | 845K | ▲+9.5% Added · +73K sh | Q1 2026 | |
| 9 | STATE STREET CORP | $5.2M | 826K | ▲+1.7% Added · +14K sh | Q1 2026 | |
| 10 | DISCOVERY CAPITAL MANAGEMENT, LLC / CT | $5.2M | 819K | —Held | Q1 2026 | |
| 11 | MORGAN STANLEY | $3.6M | 575K | ▼−3.0% Reduced · −18K sh | Q1 2026 | |
| 12 | KENNEDY CAPITAL MANAGEMENT LLC | $3.2M | 502K | ▲+2.3% Added · +11K sh | Q1 2026 | |
| 13 | Hillsdale Investment Management Inc. | $2.8M | 449K | ▲+46% Added · +140K sh | Q1 2026 | |
| 14 | TWO SIGMA INVESTMENTS, LP | $2.3M | 364K | ▲+37% Added · +98K sh | Q1 2026 | |
| 15 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $2.2M | 354K | ▼−2.3% Reduced · −8K sh | Q1 2026 | |
| 16 | JACOBS LEVY EQUITY MANAGEMENT, INC | $2.2M | 350K | ▲+28% Added · +77K sh | Q1 2026 | |
| 17 | AQR CAPITAL MANAGEMENT LLC | $2.2M | 344K | ▼−10% Reduced · −39K sh | Q1 2026 | |
| 18 | NORTHERN TRUST CORP | $2.0M | 321K | ▲+7.2% Added · +22K sh | Q1 2026 | |
| 19 | SEGALL BRYANT & HAMILL, LLC | $1.9M | 308K | ▼−0.2% Reduced · −527 sh | Q1 2026 | |
| 20 | VANGUARD FIDUCIARY TRUST CO | $1.8M | 284K | ▲New +284K sh | Q1 2026 | |
| 21 | VANGUARD PORTFOLIO MANAGEMENT LLC | $1.8M | 278K | ▲New +278K sh | Q1 2026 | |
| 22 | GOLDMAN SACHS GROUP INC | $1.7M | 275K | ▲+23% Added · +52K sh | Q1 2026 | |
| 23 | D. E. Shaw & Co., Inc. | $1.2M | 184K | ▼−57% Reduced · −243K sh | Q1 2026 | |
| 24 | AMERICAN CENTURY COMPANIES INC | $1.0M | 160K | ▼−29% Reduced · −65K sh | Q1 2026 | |
| 25 | Bank of New York Mellon Corp | $915K | 145K | ▲+5.2% Added · +7K sh | Q1 2026 |
Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| May 4, 2026 | Sutherland Todd Randell | President, E&S Lines Segment | Tax withholding (F) | 937 | $6K |
| Mar 5, 2026 | D'Orazio Frank | Chief Executive Officer, Director | Tax withholding (F) | 14K | $91K |
| Mar 5, 2026 | Doran Sarah C. | Chief Financial Officer | Tax withholding (F) | 9K | $56K |
| Mar 5, 2026 | Miller Jeanette L | SVP, Chief Legal Officer | Tax withholding (F) | 4K | $27K |
| Mar 5, 2026 | Hoffmann Michael J. | SVP Chief Underwriting Officer | Tax withholding (F) | 9K | $58K |
| Mar 5, 2026 | McCoy James Paul | Senior Vice President | Tax withholding (F) | 5K | $29K |
| Mar 4, 2026 | Crow Michael E | Principal Accounting Officer | Grant (A) | 42K | $0 |
| Mar 4, 2026 | Gould Kirstin | Director | Grant (A) | 14K | $0 |
| Mar 4, 2026 | D'Orazio Frank | Chief Executive Officer, Director | Grant (A) | 143K | $0 |
| Mar 4, 2026 | Langwell Dennis J. | Director | Grant (A) | 14K | $0 |
| Mar 4, 2026 | Brown Thomas Lynn | Director | Grant (A) | 14K | $0 |
| Mar 4, 2026 | LaSala Christine | Director | Grant (A) | 22K | $0 |
| Company | Co-held by | Combined value |
|---|---|---|
| EXXON MOBIL CORPXOM | 66 funds | $43.7B |
| ALPHABET INC-CL AGOOGL | 66 funds | $41.0B |
| HOME DEPOT INCHD | 66 funds | $29.6B |
| AMGEN INCAMGN | 66 funds | $17.9B |
| GILEAD SCIENCES INCGILD | 66 funds | $17.0B |
| TEXAS INSTRUMENTS INCTXN | 66 funds | $15.6B |
| CVS HEALTH CORPCVS | 66 funds | $15.3B |
| ABBVIE INCABBV | 66 funds | $15.2B |
| QUALCOMM INCQCOM | 66 funds | $13.7B |
| VERISIGN INCVRSN | 66 funds | $2.5B |
| APPLE INCAAPL | 65 funds | $101.1B |
| AMAZON.COM INCAMZN | 65 funds | $47.7B |
Ranked by how many of JRVR's institutional holders also hold each name, a cross-fund conviction signal. Via the MCP server (ticker.co_held).
13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for JRVR. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes. Every panel above is one call to the Arkolith API & MCP server.