Vault-13

JAMES RIV GROUP HOLDINGS INC JRVR

COM SHS · Common Stock · CUSIP 46990A102

114 institutional holders -1 vs Q1 2026
32,815,67632.8m shares reported held*
$144.6mreported value*
20 new 48 added 29 reduced 20 sold out net bought ≈ $7.1m (+1.6m shares)

* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($137.1k this quarter). Holder counts are more reliable. Implied quarter-end price ≈ $4.41. Options: 3 managers hold calls ($169.0k notional), 4 hold puts ($452.3k).

Trends to Q2 2026

Institutional holders

Managers reporting a position, each quarter

050100150Q2 25: 1Q3 25: 5Q4 25: 117Q1 26: 115Q2 26: 114114Q2 25Q3 25Q4 25Q1 26Q2 26
Numbers
QuarterHolders
Q2 20251
Q3 20255
Q4 2025117
Q1 2026115
Q2 2026114

Buyers vs sellers

Managers adding to or starting a position, vs cutting or selling out

Bought or addedCut or sold out
2000200Q3 25: 5 bought or addedQ3 25: 0 cut or sold outQ3 25Q4 25: 111 bought or addedQ4 25: 3 cut or sold outQ4 25Q1 26: 60 bought or addedQ1 26: 47 cut or sold outQ1 26Q2 26: 68 bought or addedQ2 26: 49 cut or sold outQ2 26
Numbers
QuarterBought or addedCut or sold out
Q3 202550
Q4 20251113
Q1 20266047
Q2 20266849

Calls vs puts

Options held, notional value, last 4 quarters. P/C = puts ÷ calls

CallsPuts
$0$200k$400k$600kQ3 25 calls: $0Q3 25 puts: $0Q3 25P/C —Q4 25 calls: $17.8kQ4 25 puts: $3.2kQ4 25P/C 0.18Q1 26 calls: $466.8kQ1 26 puts: $3.1kQ1 26P/C 0.01Q2 26 calls: $169.0kQ2 26 puts: $452.3kQ2 26P/C 2.68
Numbers
QuarterCallsPutsP/C
Q3 2025$0$0—
Q4 2025$17.8k$3.2k0.18
Q1 2026$466.8k$3.1k0.01
Q2 2026$169.0k$452.3k2.68

Biggest buyers

DONALD SMITH & CO., INC. Added +619,378+619.4k
FLAX POND CAPITAL, LLC Added +314,374+314.4k
BlackRock, Inc. Added +254,009+254.0k
DISCOVERY CAPITAL MANAGEMENT, LLC / CT Added +239,800+239.8k
AMERICAN CENTURY COMPANIES INC Added +215,729+215.7k
Boston Partners Added +191,692+191.7k
MORGAN STANLEY Added +165,594+165.6k
AQR CAPITAL MANAGEMENT LLC Added +163,996+164.0k
DIMENSIONAL FUND ADVISORS LP Added +156,162+156.2k
ArrowMark Colorado Holdings LLC New +150,000+150.0k

Biggest sellers

Hillsdale Investment Management Inc. Sold out -448,860-448.9k
Bronte Capital Management Pty Ltd. Sold out -338,961-339.0k
TWO SIGMA INVESTMENTS, LP Reduced -309,634-309.6k
SEGALL BRYANT & HAMILL, LLC Sold out -308,246-308.2k
Topline Capital Management, LLC Sold out -164,194-164.2k
JPMORGAN CHASE & CO Reduced -101,684-101.7k
GOLDMAN SACHS GROUP INC Reduced -48,702-48.7k
FNY Investment Advisers, LLC Reduced -46,684-46.7k
RENAISSANCE TECHNOLOGIES LLC Sold out -43,400-43.4k
Bleakley Financial Group, LLC Sold out -40,158-40.2k

Biggest calls

SUSQUEHANNA INTERNATIONAL GROUP, LLP Added $131.1k29.8k shares
SIMPLEX TRADING, LLC Reduced $26.8k6.1k shares
GROUP ONE TRADING LLC Reduced $11.0k2.5k shares

Biggest puts

CITADEL ADVISORS LLC New $341.4k77.6k shares
SUSQUEHANNA INTERNATIONAL GROUP, LLP New $84.5k19.2k shares
GROUP ONE TRADING LLC New $18.0k4.1k shares
SIMPLEX TRADING, LLC Added $8.4k1.9k shares

Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.

Major shareholders (over 5%)

Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.

HolderStakeChangeShares Last filed
Zimmer Partners, LP 13D · may seek influence new · filed 2026-05-15
Stated purposeThe Reporting Persons originally acquired the position in the shares of Common Stock of the Issuer for the account of the Zimmer Accounts in the belief that the shares of Common Stock were undervalued and represented an attractive investment opportunity. The Reporting Persons have begun to discuss or may in the future discuss with management of the Issuer, members of the Issuer's Board of Directors (the "Board") and other stockholders of the Issuer, among other things, strategic changes with respect to the Issuer or its subsidiaries, elimination of the common dividend and suspension of the preferred dividend, use of excess cash to pay down debt, a potential private placement of equity securities, other changes to the Issuer's operations and reduction of expenses, offerings of securities a… Full filing
10.0% new 4.6m≈ $20.3m 2026-05-15
Enstar Group LTD 13G · passive investor no change · filed 2026-08-13 5.6% no change 2.6m 2026-08-13
DONALD SMITH & CO., INC. 13G · institution new · filed 2026-08-11 5.3% new 2.4m≈ $10.7m 2026-08-11
CONTINENTAL GENERAL INSURANCE CO 13G · passive investor new · filed 2026-03-24 5.3% new 2.4m≈ $10.7m 2026-03-24

Fell to 5% or below in the last year: BARCLAYS PLC (1.6%, 2026-05-14)

Insider purchases and sales since 1 Apr 2026

Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.

Officers and directors buying vs selling

Number of people, by quarter (10% owners not included)

BuyingSelling
404Q4 24: 0 buyingQ4 24: 0 sellingQ1 25: 0 buyingQ1 25: 0 sellingQ1 25Q2 25: 4 buyingQ2 25: 0 sellingQ3 25: 0 buyingQ3 25: 0 sellingQ3 25Q4 25: 0 buyingQ4 25: 0 sellingQ1 26: 0 buyingQ1 26: 0 sellingQ1 26Q2 26: 0 buyingQ2 26: 0 sellingQ3 26: 0 buyingQ3 26: 0 sellingQ3 26
Numbers
QuarterBuyingBoughtSellingSoldSold under a plan
Q4 20240—0——
Q1 20250—0——
Q2 20254$828.1k0——
Q3 20250—0——
Q4 20250—0——
Q1 20260—0——
Q2 20260—0——
Q3 20260—0——

None reported since 1 Apr 2026.

Holders, Q2 2026

#ManagerLocationShares Value% of their portfolioChangeShares change
1 Zimmer Partners, LP 0.48% of their portfolio NEW YORK, NY 4,623,6854.6m $20.3m $20.3m 0.48% Added +32.0k +32,047
2 T. Rowe Price Investment Management, Inc. 0.01% of their portfolio BALTIMORE, MD 4,605,8384.6m $20.3m $20.3m 0.01% Added +111.2k +111,187
3 BlackRock, Inc. 0.00% of their portfolio New York, NY 3,394,8513.4m $14.9m $14.9m 0.00% Added +254.0k +254,009
4 CONTINENTAL GENERAL INSURANCE CO 2.39% of their portfolio Austin, TX 2,607,5872.6m $11.5m $11.5m 2.39% Added +87.3k +87,345
5 DONALD SMITH & CO., INC. 0.19% of their portfolio NEW YORK, NY 2,440,3472.4m $10.7m $10.7m 0.19% Added +619.4k +619,378
6 VANGUARD CAPITAL MANAGEMENT LLC 0.00% of their portfolio MALVERN, PA 1,724,1611.7m $7.6m $7.6m 0.00% Reduced -1.9k -1,858
7 RBF Capital, LLC 0.23% of their portfolio RENO, NV 1,221,9801.2m $5.4m $5.4m 0.23% Added +93.5k +93,455
8 GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio BOSTON, MA 1,105,4851.1m $4.9m $4.9m 0.00% Added +93.9k +93,910
9 DISCOVERY CAPITAL MANAGEMENT, LLC / CT 0.19% of their portfolio SOUTH NORWALK, CT 1,059,1551.1m $4.7m $4.7m 0.19% Added +239.8k +239,800
10 Boston Partners 0.00% of their portfolio BOSTON, MA 1,038,7171.0m $4.6m $4.6m 0.00% Added +191.7k +191,692
11 DIMENSIONAL FUND ADVISORS LP 0.00% of their portfolio AUSTIN, TX 1,001,4051.0m $4.4m $4.4m 0.00% Added +156.2k +156,162
12 STATE STREET CORP 0.00% of their portfolio BOSTON, MA 827,859827.9k $3.6m $3.6m 0.00% Added +2.2k +2,184
13 MORGAN STANLEY 0.00% of their portfolio NEW YORK, NY 740,966741.0k $3.3m $3.3m 0.00% Added +165.6k +165,594
14 AQR CAPITAL MANAGEMENT LLC 0.00% of their portfolio Greenwich, CT 508,019508.0k $2.2m $2.2m 0.00% Added +164.0k +163,996
15 KENNEDY CAPITAL MANAGEMENT LLC 0.04% of their portfolio ST LOUIS, MO 492,253492.3k $2.2m $2.2m 0.04% Reduced -9.3k -9,281
16 PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio BALTIMORE, MD 376,537376.5k $1.7m $1.7m 0.00% Added +12.0k +11,960
17 AMERICAN CENTURY COMPANIES INC 0.00% of their portfolio KANSAS CITY, MO 376,187376.2k $1.7m $1.7m 0.00% Added +215.7k +215,729
18 CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio SAN FRANCISCO, CA 360,226360.2k $1.6m $1.6m 0.00% Added +6.3k +6,303
19 NORTHERN TRUST CORP 0.00% of their portfolio CHICAGO, IL 347,097347.1k $1.5m $1.5m 0.00% Added +25.7k +25,734
20 FLAX POND CAPITAL, LLC 0.56% of their portfolio MERION STATION, PA 328,574328.6k $1.5m $1.5m 0.56% Added +314.4k +314,374
21 JACOBS LEVY EQUITY MANAGEMENT, INC 0.01% of their portfolio FLORHAM PARK, NJ 324,394324.4k $1.4m $1.4m 0.01% Reduced -25.3k -25,347
22 VANGUARD PORTFOLIO MANAGEMENT LLC 0.00% of their portfolio MALVERN, PA 309,701309.7k $1.4m $1.4m 0.00% Added +31.9k +31,903
23 VANGUARD FIDUCIARY TRUST CO 0.00% of their portfolio MALVERN, PA 299,496299.5k $1.3m $1.3m 0.00% Added +15.1k +15,117
24 D. E. Shaw & Co., Inc. 0.00% of their portfolio New York, NY 282,249282.2k $1.2m $1.2m 0.00% Added +98.1k +98,069
25 GOLDMAN SACHS GROUP INC 0.00% of their portfolio NEW YORK, NY 226,485226.5k $996.5k $996.5k 0.00% Reduced -48.7k -48,702
26 Canal Insurance CO 0.16% of their portfolio Greenville, SC 164,071164.1k $722.0k $722.0k 0.16% Added +134.1k +134,071
27 Quantinno Capital Management LP 0.00% of their portfolio NEW YORK, NY 162,417162.4k $714.6k $714.6k 0.00% Added +60.3k +60,253
28 ArrowMark Colorado Holdings LLC 0.03% of their portfolio Denver, CO 150,000150.0k $660.0k $660.0k 0.03% New
29 Bank of New York Mellon Corp 0.00% of their portfolio NEW YORK, NY 127,659127.7k $561.7k $561.7k 0.00% Reduced -17.5k -17,542
30 Quinn Opportunity Partners LLC 0.02% of their portfolio CHARLOTTESVILLE, VA 115,768115.8k $509.4k $509.4k 0.02% Unchanged
31 BRIDGEWAY CAPITAL MANAGEMENT, LLC 0.01% of their portfolio HOUSTON, TX 106,700106.7k $469.5k $469.5k 0.01% Added +46.7k +46,700
32 O'SHAUGHNESSY ASSET MANAGEMENT, LLC 0.00% of their portfolio Stamford, CT 88,44088.4k $389.1k $389.1k 0.00% New
33 Public Sector Pension Investment Board 0.00% of their portfolio MONTREAL, A8 75,95676.0k $334.2k $334.2k 0.00% Unchanged
34 Nuveen, LLC 0.00% of their portfolio CHARLOTTE, NC 70,67370.7k $311.0k $311.0k 0.00% Reduced -18.8k -18,813
35 Russell Investments Group, Ltd. 0.00% of their portfolio Seattle, WA 62,97963.0k $277.1k $277.1k 0.00% Added +25.2k +25,176
36 ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio NASHVILLE, TN 62,55062.5k $394.1k $394.1k 0.00% Added +7.6k +7,600
37 AMERIPRISE FINANCIAL INC 0.00% of their portfolio MINNEAPOLIS, MN 62,36962.4k $274.4k $274.4k 0.00% Unchanged
38 TWO SIGMA INVESTMENTS, LP 0.00% of their portfolio NEW YORK, NY 54,56554.6k $240.1k $240.1k 0.00% Reduced -309.6k -309,634
39 RITHOLTZ WEALTH MANAGEMENT 0.00% of their portfolio NEW YORK, NY 50,19450.2k $220.9k $220.9k 0.00% New
40 XTX Topco Ltd 0.00% of their portfolio LONDON, X0 46,77246.8k $205.8k $205.8k 0.00% New
41 RHUMBLINE ADVISERS 0.00% of their portfolio BOSTON, MA 45,97046.0k $202.3k $202.3k 0.00% Added +300 +300
42 SEI INVESTMENTS CO 0.00% of their portfolio OAKS, PA 44,95745.0k $197.8k $197.8k 0.00% Reduced -38.4k -38,443
43 UBS Group AG 0.00% of their portfolio ZURICH, V8 38,38138.4k $168.9k $168.9k 0.00% Added +3.4k +3,406
44 Invesco Ltd. 0.00% of their portfolio ATLANTA, GA 36,78436.8k $161.8k $161.8k 0.00% Added +14.8k +14,761
45 DEUTSCHE BANK AG\ 0.00% of their portfolio FRANKFURT AM MAIN, 2M 36,48136.5k $160.5k $160.5k 0.00% Added +14.3k +14,254
46 PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO 0.00% of their portfolio COLUMBUS, OH 32,06132.1k $141.1k $141.1k 0.00% Unchanged
47 Graham Capital Management, L.P. 0.00% of their portfolio ROWAYTON, CT 31,75431.8k $139.7k $139.7k 0.00% New
48 WELLS FARGO & COMPANY/MN 0.00% of their portfolio SAN FRANCISCO, CA 31,33331.3k $137.9k $137.9k 0.00% Added +17.4k +17,384
49 SmartHarvest Portfolios, LLC 0.04% of their portfolio SEATTLE, WA 27,16127.2k $119.5k $119.5k 0.04% New
50 FRANKLIN RESOURCES INC 0.00% of their portfolio San Mateo, CA 27,15027.1k $119.5k $119.5k 0.00% Unchanged
51 BANK OF AMERICA CORP /DE/ 0.00% of their portfolio CHARLOTTE, NC 27,00327.0k $118.8k $118.8k 0.00% Reduced -9.7k -9,687
52 Sowell Financial Services LLC 0.00% of their portfolio NORTH LITTLE ROCK, AR 26,79626.8k $117.9k $117.9k 0.00% Added +300 +300
53 DRW Securities, LLC 0.01% of their portfolio CHICAGO, IL 23,70023.7k $104.3k $104.3k 0.01% New
54 IEQ CAPITAL, LLC 0.00% of their portfolio Foster City, CA 22,65422.7k $99.7k $99.7k 0.00% Reduced -9.7k -9,709
55 WEALTH ENHANCEMENT ADVISORY SERVICES, LLC 0.00% of their portfolio PLYMOUTH, MN 20,16520.2k $92.0k $92.0k 0.00% Added +1.9k +1,929
56 Connor, Clark & Lunn Investment Management Ltd. 0.00% of their portfolio VANCOUVER, A1 20,09220.1k $88.4k $88.4k 0.00% Added +4.5k +4,499
57 Vanguard Global Advisers, LLC 0.00% of their portfolio MALVERN, PA 19,37619.4k $85.3k $85.3k 0.00% Unchanged
58 FMR LLC 0.00% of their portfolio BOSTON, MA 18,00418.0k $79.2k $79.2k 0.00% Added +6.8k +6,753
59 MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.00% of their portfolio CAUSEWAY BAY, K3 17,21817.2k $75.8k $75.8k 0.00% Reduced -329 -329
60 CITIGROUP INC 0.00% of their portfolio NEW YORK, NY 17,18017.2k $75.6k $75.6k 0.00% Added +15.5k +15,467
61 JPMORGAN CHASE & CO 0.00% of their portfolio NEW YORK, NY 16,21116.2k $72.1k $72.1k 0.00% Reduced -101.7k -101,684
62 PDT Partners, LLC 0.00% of their portfolio New York, NY 15,71015.7k $69.1k $69.1k 0.00% New
63 Rockefeller Capital Management L.P. 0.00% of their portfolio NEW YORK, NY 15,61115.6k $68.7k $68.7k 0.00% Reduced -5.5k -5,478
64 NISA INVESTMENT ADVISORS, LLC 0.00% of their portfolio ST. LOUIS, MO 14,78514.8k $65.1k $65.1k 0.00% Added +14.7k +14,690
65 MERCER GLOBAL ADVISORS INC /ADV 0.00% of their portfolio DENVER, CO 14,06114.1k $61.9k $61.9k 0.00% Added +2.9k +2,886
66 Jump Financial, LLC 0.00% of their portfolio Chicago, IL 13,63813.6k $60.0k $60.0k 0.00% Reduced -15.6k -15,623
67 Cetera Investment Advisers 0.00% of their portfolio SCHAUMBURG, IL 13,18113.2k $58.0k $58.0k 0.00% Added +2.4k +2,379
68 GLENMEDE TRUST CO NA 0.00% of their portfolio PHILADELPHIA, PA 12,58812.6k $55.4k $55.4k 0.00% New
69 NEUBERGER BERMAN GROUP LLC 0.00% of their portfolio NEW YORK, NY 11,75411.8k $51.7k $51.7k 0.00% New
70 Cerity Partners LLC 0.00% of their portfolio NEW YORK, NY 11,46611.5k $50.5k $50.5k 0.00% Reduced -3.7k -3,719
71 Vise Technologies, Inc. 0.00% of their portfolio NEW YORK, NY 11,32911.3k $49.8k $49.8k 0.00% New
72 Atom Investors LP 0.00% of their portfolio AUSTIN, TX 11,09411.1k $48.8k $48.8k 0.00% New
73 MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.00% of their portfolio Toronto, A6 10,85310.9k $47.8k $47.8k 0.00% Added +501 +501
74 SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio BALA CYNWYD, PA 10,52910.5k $46.3k $46.3k 0.00% Reduced -2.6k -2,635
75 FNY Investment Advisers, LLC 0.01% of their portfolio NEW YORK, NY 9,3739.4k $41.0k $41.0k 0.01% Reduced -46.7k -46,684
76 NEW YORK STATE COMMON RETIREMENT FUND 0.00% of their portfolio ALBANY, NY 8,9128.9k $39.2k $39.2k 0.00% Unchanged
77 Police & Firemen's Retirement System of New Jersey 0.00% of their portfolio TRENTON, NJ 7,0217.0k $30.9k $30.9k 0.00% Unchanged
78 State of Wyoming 0.00% of their portfolio CHEYENNE, WY 6,9987.0k $30.8k $30.8k 0.00% Added +4.7k +4,721
79 Tower Research Capital LLC (TRC) 0.00% of their portfolio NEW YORK, NY 6,4806.5k $28.5k $28.5k 0.00% Added +3.2k +3,152
80 Versant Capital Management, Inc 0.00% of their portfolio PHOENIX, AZ 6,1796.2k $27.2k $27.2k 0.00% Added +3.9k +3,940
81 BARCLAYS PLC 0.00% of their portfolio LONDON, X0 4,9735.0k $21.9k $21.9k 0.00% Reduced -3.9k -3,888
82 BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio PARIS, I0 4,5864.6k $20.2k $20.2k 0.00% Reduced -10.5k -10,508
83 Ameritas Investment Partners, Inc. 0.00% of their portfolio LINCOLN, NE 3,6803.7k $16.2k $16.2k 0.00% Unchanged
84 Legal & General Group Plc 0.00% of their portfolio London, X0 3,4733.5k $15.3k $15.3k 0.00% Unchanged
85 American Capital Advisory, LLC 0.00% of their portfolio KETCHUM, ID 2,6002.6k $11.4k $11.4k 0.00% Unchanged
86 SIMPLEX TRADING, LLC 0.00% of their portfolio CHICAGO, IL 1,7771.8k $7.8k $7.8k 0.00% New
87 Arax Advisory Partners 0.00% of their portfolio NEW YORK, NY 1,4671.5k $6.5k $6.5k 0.00% Added +419 +419
88 ROYAL BANK OF CANADA 0.00% of their portfolio TORONTO, A6 1,2711.3k $6.0k $6.0k 0.00% Added +1.2k +1,244
89 HARBOR CAPITAL ADVISORS, INC. 0.00% of their portfolio CHICAGO, IL 757757 $3.0k $3.0k 0.00% Unchanged
90 Sterling Capital Management LLC 0.00% of their portfolio CHARLOTTE, NC 690690 $3.0k $3.0k 0.00% Reduced -530 -530
91 FIFTH THIRD BANCORP 0.00% of their portfolio CINCINNATI, OH 537537 $2.4k $2.4k 0.00% Unchanged
92 CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio WEST SACRAMENTO, CA 515515 $2.3k $2.3k 0.00% Reduced -1.5k -1,480
93 LANARK FINANCIAL, INC. 0.00% of their portfolio BIRMINGHAM, AL 501501 $2.2k $2.2k 0.00% New
94 Allworth Financial LP 0.00% of their portfolio FOLSOM, CA 426426 $1.9k $1.9k 0.00% Added +331 +331
95 Allied Private Wealth LLC 0.00% of their portfolio BOCA RATON, FL 400400 $1.8k $1.8k 0.00% First filing
96 Clearstead Advisors, LLC 0.00% of their portfolio CLEVELAND, OH 394394 $1.7k $1.7k 0.00% New
97 Parallel Advisors, LLC 0.00% of their portfolio SAN FRANCISCO, CA 368368 $1.6k $1.6k 0.00% Reduced -607 -607
98 Integrated Wealth Concepts LLC 0.00% of their portfolio WALTHAM, MA 348348 $1.5k $1.5k 0.00% New
99 UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio NEW YORK, NY 281281 $1.2k $1.2k 0.00% Unchanged
100 GAMMA Investing LLC 0.00% of their portfolio FOSTER CITY, CA 254254 $1.1k $1.1k 0.00% Reduced -1.6k -1,648