JRVR Institutional Ownership & Shareholders
JAMES RIVER GROUP HOLDINGS I (JRVR) is currently held by 112 institutional investors tracked by InsiderSet, with a combined reported market value of approximately $141.46M based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026.
Zimmer Partners, Lp is currently the largest disclosed institutional shareholder of JRVR tracked by InsiderSet, reporting ownership valued at approximately $20.34M in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $18.49M, representing an estimated loss of -9.09% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 74% of the total disclosed JRVR value among the investors covered in this analysis. Major shareholders include Zimmer Partners, Lp, T. Rowe Price Investment Management, Inc., Blackrock, Inc., and several other long-term asset managers with concentrated positions in JAMES RIVER GROUP HOLDINGS I (JRVR).
This page ranks the largest institutional JRVR shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
112
Total Reported Value
$141.46M
Largest Holder
Zimmer Partners, Lp
Largest Position
$20.34M
Insider Transactions (90d)
0
Latest Filing Quarter
Q2 2026
New Institutional Positions
116
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Zimmer Partners, Lp | 0.48% | 4,623,685 | $20,344,214 | $18,494,740 | -$1,849,474 | -9.09% | |
| T. Rowe Price Investment Management, Inc. | 0.01% | 4,605,838 | $20,266,000 | $18,423,352 | -$1,842,648 | -9.09% | |
| Blackrock, Inc. | 0.00% | 3,394,851 | $14,937,345 | $13,579,404 | -$1,357,941 | -9.09% | |
| Continental General Insurance Co | 2.39% | 2,607,587 | $11,473,383 | $10,430,348 | -$1,043,035 | -9.09% | |
| Donald Smith & Co. | Donald G. Smith | 0.19% | 2,440,347 | $10,737,527 | $9,761,388 | -$976,139 | -9.09% |
| Vanguard Capital Management Llc | 0.00% | 1,724,161 | $7,586,308 | $6,896,644 | -$689,664 | -9.09% | |
| Rbf Capital, Llc | 0.23% | 1,221,980 | $5,376,712 | $4,887,920 | -$488,792 | -9.09% | |
| Discovery Capital Management, Llc / Ct | 0.19% | 1,059,155 | $4,660,282 | $4,236,620 | -$423,662 | -9.09% | |
| Boston Partners | 0.00% | 1,038,717 | $4,570,350 | $4,154,868 | -$415,482 | -9.09% | |
| Dimensional Fund Advisors Lp | 0.00% | 1,175,858 | $4,033,076 | $4,703,432 | +$670,356 | +16.62% | |
| State Street Corp | 0.00% | 827,859 | $3,642,580 | $3,311,436 | -$331,144 | -9.09% | |
| Morgan Stanley | 0.00% | 740,966 | $3,260,252 | $2,963,864 | -$296,388 | -9.09% | |
| Geode Capital Management, Llc | 0.00% | 941,159 | $3,229,109 | $3,764,636 | +$535,527 | +16.58% | |
| Aqr Capital Management Llc | 0.00% | 508,019 | $2,235,283 | $2,032,076 | -$203,207 | -9.09% | |
| Kennedy Capital Management Llc | 0.04% | 492,253 | $2,165,913 | $1,969,012 | -$196,901 | -9.09% | |
| Price T Rowe Associates Inc | 0.00% | 376,537 | $1,658,000 | $1,506,148 | -$151,852 | -9.16% | |
| American Century Companies Inc | 0.00% | 376,187 | $1,655,223 | $1,504,748 | -$150,475 | -9.09% | |
| Charles Schwab Investment Management Inc | 0.00% | 360,226 | $1,584,994 | $1,440,904 | -$144,090 | -9.09% | |
| Northern Trust Corp | 0.00% | 347,097 | $1,527,226 | $1,388,388 | -$138,838 | -9.09% | |
| Jacobs Levy Equity Management, Inc | 0.01% | 324,394 | $1,427,334 | $1,297,576 | -$129,758 | -9.09% | |
| Vanguard Portfolio Management Llc | 0.00% | 309,701 | $1,362,684 | $1,238,804 | -$123,880 | -9.09% | |
| Vanguard Fiduciary Trust Co | 0.00% | 299,496 | $1,317,782 | $1,197,984 | -$119,798 | -9.09% | |
| Flax Pond Capital, Llc | 0.90% | 294,374 | $1,295,246 | $1,177,496 | -$117,750 | -9.09% | |
| D. E. Shaw & Co., Inc. | 0.00% | 282,249 | $1,241,895 | $1,128,996 | -$112,899 | -9.09% | |
| Goldman Sachs Group Inc | 0.00% | 226,485 | $996,534 | $905,940 | -$90,594 | -9.09% | |
| Quantinno Capital Management Lp | 0.00% | 162,417 | $714,637 | $649,668 | -$64,969 | -9.09% | |
| Arrowmark Colorado Holdings Llc | 0.03% | 150,000 | $660,000 | $600,000 | -$60,000 | -9.09% | |
| Russell Investments Group, Ltd. | 0.00% | 178,607 | $612,624 | $714,428 | +$101,804 | +16.62% | |
| Quinn Opportunity Partners Llc | 0.02% | 115,768 | $509,379 | $463,072 | -$46,307 | -9.09% | |
| Bridgeway Capital Management, Llc | 0.01% | 106,700 | $469,480 | $426,800 | -$42,680 | -9.09% | |
| Bank Of New York Mellon Corp | 0.00% | 128,898 | $442,121 | $515,592 | +$73,471 | +16.62% | |
| Alliancebernstein L.P. | 0.00% | 62,550 | $394,065 | $250,200 | -$143,865 | -36.51% | |
| O'Shaughnessy Asset Management, Llc | 0.00% | 88,440 | $389,136 | $353,760 | -$35,376 | -9.09% | |
| Public Sector Pension Investment Board | 0.00% | 75,956 | $334,206 | $303,824 | -$30,382 | -9.09% | |
| Nuveen, Llc | 0.00% | 70,673 | $310,961 | $282,692 | -$28,269 | -9.09% | |
| Ameriprise Financial Inc | 0.00% | 62,369 | $274,424 | $249,476 | -$24,948 | -9.09% | |
| Two Sigma Investments, Lp | 0.00% | 54,565 | $240,086 | $218,260 | -$21,826 | -9.09% | |
| Xtx Topco Ltd | 0.00% | 46,772 | $205,797 | $187,088 | -$18,709 | -9.09% | |
| Rhumbline Advisers | 0.00% | 45,970 | $202,259 | $183,880 | -$18,379 | -9.09% | |
| Sei Investments Co | 0.00% | 44,957 | $197,821 | $179,828 | -$17,993 | -9.10% | |
| Ubs Group Ag | 0.00% | 38,381 | $168,876 | $153,524 | -$15,352 | -9.09% | |
| Ritholtz Wealth Management | 0.00% | 47,644 | $163,418 | $190,576 | +$27,158 | +16.62% | |
| Invesco Ltd. | 0.00% | 36,784 | $161,850 | $147,136 | -$14,714 | -9.09% | |
| Public Employees Retirement System Of Ohio | 0.00% | 32,061 | $141,068 | $128,244 | -$12,824 | -9.09% | |
| Graham Capital Management, L.P. | 0.00% | 31,754 | $139,718 | $127,016 | -$12,702 | -9.09% | |
| Wells Fargo & Company/Mn | 0.00% | 31,333 | $137,865 | $125,332 | -$12,533 | -9.09% | |
| Bank Of America Corp | 0.00% | 27,003 | $118,813 | $108,012 | -$10,801 | -9.09% | |
| Cwm, Llc | 0.00% | 18,177 | $114,515 | $72,708 | -$41,807 | -36.51% | |
| Deutsche Bank Ag\ | 0.00% | 31,907 | $109,441 | $127,628 | +$18,187 | +16.62% | |
| Drw Securities, Llc | 0.01% | 23,700 | $104,280 | $94,800 | -$9,480 | -9.09% |
Frequently asked questions about JRVR
Who are the largest institutional holders of JRVR?
The largest institutional holders of JRVR reported in the latest SEC Form 13F filings include Zimmer Partners, Lp, T. Rowe Price Investment Management, Inc., Blackrock, Inc., Continental General Insurance Co, and Donald Smith & Co.. InsiderSet ranks institutional holders by their latest reported JRVR position.
What is JRVR institutional ownership?
This page tracks JRVR positions reported by institutional investment managers through SEC Form 13F. JAMES RIVER GROUP HOLDINGS I (JRVR) institutional ownership on InsiderSet reflects disclosed 13F holdings among the managers we analyze, not every shareholder of the stock.
How many institutions own JRVR?
InsiderSet currently tracks 112 institutional managers reporting JRVR holdings in the latest available 13F data. This count reflects institutions included in the SEC Form 13F filings analyzed by InsiderSet and should not be interpreted as the total number of JRVR shareholders.
How much JRVR stock do institutions own?
Institutional investment managers disclosed approximately $141.46M in JRVR holdings for Q2 2026. This figure is reported 13F value as of the filing period, not necessarily today's market value.
When was JRVR institutional ownership last updated?
The latest JRVR institutional ownership data on InsiderSet is based on SEC Form 13F filings for the quarter ended June 30, 2026. Form 13F filings are generally reported after the quarter ends, so the holdings shown represent the latest publicly disclosed positions rather than real-time institutional holdings.
Are institutional JRVR holdings real-time?
No. Form 13F data is not real-time. It represents positions reported by institutional investment managers as of the end of the reporting quarter. An institution may have changed its JRVR position after the reporting date.
Are institutions buying or selling JRVR?
Institutional buying and selling can be analyzed by comparing JRVR positions across consecutive 13F reporting periods. InsiderSet's JRVR Ownership Changes page shows institutions that increased, reduced, initiated, or exited positions based on reported 13F holdings. View JRVR ownership changes.
How has JRVR institutional ownership changed over time?
InsiderSet tracks JRVR institutional holdings across multiple 13F reporting periods, allowing investors to compare institutional holder counts, reported value, and reported shares over time.