ASPEN INSURANCE HOLDINGS LTD - AHL

Detailed investor-level table based on 13F positions.

Shareholders (13F)

Quarter: Q4 2025 · Compare: Q3 2025
13D/13G major owners: Ownership tab.
Methodology: Market value and % of portfolio use SEC reported VALUE ($000). For PUT/CALL positions this reflects reported underlying exposure, not premium cash paid/received. Details.
Rows: 0
Investor History Status Shares held Market value ($000) % of portfolio Previous % Rank Change in shares % change in shares Source Date reported
Apollo Management Holdings, L.P. History No change 75,418,220 2,798,015 22.9% 30.36% 1 0 0.0% Q4 2025 Feb 17, 2026
HBK INVESTMENTS L P History Added to 4,500,000 166,950 1.31% 1.46% 2 +886,361 24.53% Q4 2025 Feb 17, 2026
NUANCE INVESTMENTS, LLC History Added to 1,541,315 57,182 6.3% 4.48% 3 +343,160 28.64% Q4 2025 Feb 11, 2026
Magnetar Financial LLC History No change 1,218,999 45,224 0.44% 0.27% 4 0 0.0% Q4 2025 Feb 17, 2026
GLAZER CAPITAL, LLC History Added to 1,123,495 41,682 1.1% 1.13% 5 +203,101 22.07% Q4 2025 Feb 13, 2026
GOLDMAN SACHS GROUP INC History Added to 1,052,654 39,053 0.0% 0.0% 6 +281,982 36.59% Q4 2025 Mar 25, 2026
JPMORGAN CHASE & CO History Added to 942,103 34,952 0.0% 0.0% 7 +378,381 67.12% Q4 2025 Feb 11, 2026
FIL Ltd History No change 863,280 32,027 0.02% 0.02% 8 0 0.0% Q4 2025 Feb 17, 2026
BlackRock, Inc. History Added to 832,526 30,886 0.0% 0.0% 9 +21,019 2.59% Q4 2025 Feb 12, 2026
WATER ISLAND CAPITAL LLC History Reduced 572,685 21,246 2.29% 2.87% 10 -47,564 -7.67% Q4 2025 Feb 17, 2026
Schonfeld Strategic Advisors LLC History Added to 541,721 20,097 0.09% 0.02% 11 +432,690 396.85% Q4 2025 Feb 17, 2026
Capula Management Ltd History New 445,997 16,546 0.08% 12 +445,997 New Q4 2025 Feb 13, 2026
AQR Arbitrage LLC History Added to 388,918 14,428 0.3% 0.23% 13 +138,252 55.15% Q4 2025 Feb 17, 2026
MARSHALL WACE, LLP History Added to 312,368 11,588 0.01% 0.01% 14 +84,625 37.16% Q4 2025 Feb 13, 2026
MILLENNIUM MANAGEMENT LLC History Added to 302,282 11,214 0.0% 0.0% 15 +260,732 627.51% Q4 2025 Feb 17, 2026
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP History New 300,902 11,163 0.01% 16 +300,902 New Q4 2025 Feb 13, 2026
HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC History Reduced 278,410 10,329 0.03% 0.03% 17 -13,230 -4.54% Q4 2025 Feb 17, 2026
WELLINGTON MANAGEMENT GROUP LLP History Added to 275,709 10,228 0.0% 0.0% 18 +21,192 8.33% Q4 2025 Feb 17, 2026
ALPINE ASSOCIATES MANAGEMENT INC. History Added to 252,487 9,367 0.62% 0.48% 19 +36,086 16.68% Q4 2025 Feb 05, 2026
STATE STREET CORP History Added to 239,736 8,894 0.0% 0.0% 20 +8,917 3.86% Q4 2025 Feb 13, 2026
RENAISSANCE TECHNOLOGIES LLC History Added to 237,700 8,818 0.01% 0.01% 21 +109,000 84.69% Q4 2025 Feb 12, 2026
FMR LLC History Added to 229,011 8,496 0.0% 0.0% 22 +89,209 63.81% Q4 2025 Feb 17, 2026
GEODE CAPITAL MANAGEMENT, LLC History Reduced 179,878 6,673 0.0% 0.0% 23 -2,949 -1.61% Q4 2025 Feb 09, 2026
MORGAN STANLEY History Added to 174,613 6,478 0.0% 0.0% 24 +136,965 363.8% Q4 2025 Feb 13, 2026
Slotnik Capital, LLC History Added to 170,000 6,307 1.47% 0.79% 25 +101,407 147.84% Q4 2025 Feb 13, 2026
ALLIANCEBERNSTEIN L.P. History Reduced 168,380 6,246 0.0% 0.0% 26 -18,855 -10.07% Q4 2025 Feb 17, 2026
UBS Group AG History Added to 164,785 6,113 0.0% 0.0% 27 +123,489 299.03% Q4 2025 Jan 29, 2026
Burkehill Global Management, LP History No change 150,000 5,565 0.37% 0.31% 28 0 0.0% Q4 2025 Feb 17, 2026
MOORE CAPITAL MANAGEMENT, LP History Added to 143,963 5,341 0.08% 0.07% 29 +5,000 3.6% Q4 2025 Feb 17, 2026
GARDNER LEWIS ASSET MANAGEMENT L P History New 130,006 4,823 1.22% 30 +130,006 New Q4 2025 Feb 12, 2026
GABELLI FUNDS LLC History New 126,700 4,700 0.03% 31 +126,700 New Q4 2025 Feb 05, 2026
NORGES BANK History New 110,024 4,081 0.0% 32 +110,024 New Q4 2025 Feb 10, 2026
COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS History No change 100,000 3,710 0.02% 0.02% 33 0 0.0% Q4 2025 Feb 10, 2026
VANGUARD GROUP INC History Added to 99,755 3,700 0.0% 0.0% 34 +1,855 1.89% Q4 2025 Jan 29, 2026
Fortress Investment Group LLC History New 98,430 3,651 0.86% 35 +98,430 New Q4 2025 Feb 17, 2026
Alpine Global Management, LLC History New 95,002 3,524 0.76% 36 +95,002 New Q4 2025 Feb 26, 2026
Qube Research & Technologies Ltd History New 77,839 2,887 0.0% 37 +77,839 New Q4 2025 Feb 17, 2026
NORTHERN TRUST CORP History Reduced 77,647 2,880 0.0% 0.0% 38 -10,668 -12.08% Q4 2025 Feb 17, 2026
Vestcor Inc History No change 75,000 2,783 0.08% 0.08% 39 0 0.0% Q4 2025 Feb 11, 2026
Groupe la Francaise History Added to 69,550 2,580 0.04% 0.03% 40 +12,000 20.85% Q4 2025 Feb 12, 2026
PRELUDE CAPITAL MANAGEMENT, LLC History Added to 62,820 2,330 0.17% 0.05% 41 +45,656 266.0% Q4 2025 Feb 17, 2026
Mariner, LLC History Added to 61,980 2,299 0.0% 0.0% 42 +15,055 32.08% Q4 2025 Feb 13, 2026
IAT REINSURANCE CO LTD. History No change 80,000 1,991 0.58% 0.42% 43 0 0.0% Q4 2025 Feb 10, 2026
WOLVERINE ASSET MANAGEMENT LLC History Added to 52,086 1,932 0.02% 0.0% 44 +48,167 1229.06% Q4 2025 Feb 02, 2026
SUSQUEHANNA INTERNATIONAL GROUP, LLP History New 51,859 1,923 0.0% 45 +51,859 New Q4 2025 Feb 17, 2026
Cinctive Capital Management LP History No change 50,000 1,855 0.1% 0.09% 46 0 0.0% Q4 2025 Feb 17, 2026
CREDIT INDUSTRIEL ET COMMERCIAL History Added to 46,936 1,741 0.13% 0.12% 47 +8,000 20.55% Q4 2025 Feb 03, 2026
Polar Asset Management Partners Inc. History New 46,888 1,739 0.02% 48 +46,888 New Q4 2025 Feb 17, 2026
SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC History New 46,600 1,728 0.06% 49 +46,600 New Q4 2025 Feb 17, 2026
Sagefield Capital LP History New 46,195 1,713 0.15% 50 +46,195 New Q4 2025 Feb 17, 2026
Villanova Investment Management Co LLC History No change 45,320 1,681 1.18% 1.15% 51 0 0.0% Q4 2025 Feb 26, 2026
First Trust Capital Management L.P. History New 39,334 1,459 0.09% 52 +39,334 New Q4 2025 Feb 13, 2026
Aquatic Capital Management LLC History New 39,194 1,454 0.04% 53 +39,194 New Q4 2025 Feb 17, 2026
CHARLES SCHWAB INVESTMENT MANAGEMENT INC History Added to 38,262 1,419 0.0% 0.0% 54 +64 0.17% Q4 2025 Feb 13, 2026
Blackstone Inc. History New 37,053 1,374 0.01% 55 +37,053 New Q4 2025 Feb 17, 2026
AQR CAPITAL MANAGEMENT LLC History New 34,125 1,266 0.0% 56 +34,125 New Q4 2025 Feb 17, 2026
RAYMOND JAMES FINANCIAL INC History Added to 33,306 1,235 0.0% 0.0% 57 +8,899 36.46% Q4 2025 Feb 18, 2026
BANK OF AMERICA CORP /DE/ History Added to 32,595 1,209 0.0% 0.0% 58 +13,276 68.72% Q4 2025 Feb 17, 2026
Bank of New York Mellon Corp History Added to 32,487 1,205 0.0% 0.0% 59 +2,969 10.06% Q4 2025 Feb 10, 2026
AMERIPRISE FINANCIAL INC History Reduced 28,945 1,073 0.0% 0.0% 60 -8,355 -22.4% Q4 2025 Feb 17, 2026
SG Americas Securities, LLC History Added to 26,677 990 0.0% 0.0% 61 +17,986 206.95% Q4 2025 Jan 09, 2026
SummitTX Capital, L.P. History New 24,540 910 0.03% 62 +24,540 New Q4 2025 Feb 17, 2026
BARCLAYS PLC History Added to 23,999 890 0.0% 0.0% 63 +2,283 10.51% Q4 2025 Feb 13, 2026
Nuveen, LLC History Added to 23,013 853 0.0% 0.0% 64 +4,054 21.38% Q4 2025 Feb 12, 2026
Trexquant Investment LP History New 19,745 732 0.01% 65 +19,745 New Q4 2025 Feb 17, 2026
TWO SIGMA INVESTMENTS, LP History No change 19,222 713 0.0% 0.0% 66 0 0.0% Q4 2025 Feb 17, 2026
WELLS FARGO & COMPANY/MN History Added to 17,050 632 0.0% 0.0% 67 +6,635 63.71% Q4 2025 Feb 13, 2026
RHUMBLINE ADVISERS History Reduced 16,938 628 0.0% 0.0% 68 -805 -4.54% Q4 2025 Feb 13, 2026
CITADEL ADVISORS LLC History New 16,813 623 0.0% 69 +16,813 New Q4 2025 Feb 17, 2026
STRS OHIO History Added to 16,700 619 0.0% 0.0% 70 +13,900 496.43% Q4 2025 Feb 02, 2026
LMR Partners LLP History New 16,650 617 0.0% 71 +16,650 New Q4 2025 Feb 17, 2026
Canvas Wealth Advisors, LLC History Added to 15,963 592 0.1% 0.08% 72 +4,290 36.75% Q4 2025 Jan 12, 2026
Lykos Global Management, LP History New 15,000 556 0.39% 73 +15,000 New Q4 2025 Feb 17, 2026
DEUTSCHE BANK AG\ History Added to 13,944 517 0.0% 0.0% 74 +1,480 11.87% Q4 2025 Feb 11, 2026
Gotham Asset Management, LLC History New 13,776 511 0.0% 75 +13,776 New Q4 2025 Feb 17, 2026
Tidal Investments LLC History New 13,447 498 0.0% 76 +13,447 New Q4 2025 Feb 13, 2026
Veradace Capital Management LLC History New 13,424 498 0.3% 77 +13,424 New Q4 2025 Feb 18, 2026
XTX Topco Ltd History Added to 12,776 473 0.01% 0.01% 78 +5,548 76.76% Q4 2025 Feb 17, 2026
Sciencast Management LP History New 12,256 454 0.06% 79 +12,256 New Q4 2025 Feb 17, 2026
SEI INVESTMENTS CO History Added to 11,654 432 0.0% 0.0% 80 +1,554 15.39% Q4 2025 Feb 13, 2026
Squarepoint Ops LLC History New 11,447 424 0.0% 81 +11,447 New Q4 2025 Feb 13, 2026
ProShare Advisors LLC History Added to 10,745 398 0.0% 0.0% 82 +359 3.46% Q4 2025 Feb 06, 2026
Invesco Ltd. History Added to 10,407 386 0.0% 0.0% 83 +1,910 22.48% Q4 2025 Feb 19, 2026
Skandinaviska Enskilda Banken AB (publ) History New 10,111 375 0.0% 84 +10,111 New Q4 2025 Feb 12, 2026
DARK FOREST CAPITAL MANAGEMENT LP History New 9,987 370 0.02% 85 +9,987 New Q4 2025 Feb 17, 2026
MetLife Investment Management, LLC History No change 9,256 343 0.0% 0.0% 86 0 0.0% Q4 2025 Feb 12, 2026
PRICE T ROWE ASSOCIATES INC /MD/ History Added to 9,146 340 0.0% 0.0% 87 +885 10.71% Q4 2025 Feb 17, 2026
Virtu Financial LLC History Reduced 9,003 334 0.01% 0.05% 88 -14,438 -61.59% Q4 2025 Feb 23, 2026
R Squared Ltd History New 8,308 308 0.14% 89 +8,308 New Q4 2025 Jan 30, 2026
HRT FINANCIAL LP History New 7,442 276 0.0% 90 +7,442 New Q4 2025 Feb 12, 2026
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. History Added to 7,177 266 0.0% 0.0% 91 +7 0.1% Q4 2025 Feb 17, 2026
STATE OF WISCONSIN INVESTMENT BOARD History New 6,300 233 0.0% 92 +6,300 New Q4 2025 Feb 17, 2026
Susquehanna Portfolio Strategies, LLC History No change 6,291 233 0.0% 0.0% 93 0 0.0% Q4 2025 Feb 17, 2026
Verition Fund Management LLC History New 6,025 223 0.0% 94 +6,025 New Q4 2025 Feb 13, 2026
GAMCO INVESTORS, INC. ET AL History New 6,000 222 0.0% 95 +6,000 New Q4 2025 Feb 05, 2026
MANUFACTURERS LIFE INSURANCE COMPANY, THE History New 5,934 220 0.0% 96 +5,934 New Q4 2025 Feb 13, 2026
ABC ARBITRAGE SA History No change 5,545 205 0.02% 0.02% 97 0 0.0% Q4 2025 Feb 04, 2026
NEW YORK STATE COMMON RETIREMENT FUND History No change 4,900 181 0.0% 0.0% 98 0 0.0% Q4 2025 Feb 12, 2026
Police & Firemen's Retirement System of New Jersey History Added to 4,313 160 0.0% 0.0% 99 +1,621 60.22% Q4 2025 Feb 13, 2026
BNP PARIBAS FINANCIAL MARKETS History Added to 3,331 123 0.0% 0.0% 100 +211 6.76% Q4 2025 Feb 10, 2026
PenderFund Capital Management Ltd. History Added to 2,800 103 0.02% 0.01% 101 +900 47.37% Q4 2025 Feb 17, 2026
Legal & General Group Plc History Reduced 1,540 57 0.0% 0.0% 102 -27 -1.72% Q4 2025 Feb 09, 2026
CITIGROUP INC History Added to 1,468 54 0.0% 0.0% 103 +1,001 214.35% Q4 2025 Feb 13, 2026
CWM, LLC History New 1,268 47 0.0% 105 +1,268 New Q4 2025 Jan 26, 2026
Ameritas Investment Partners, Inc. History No change 1,290 47 0.0% 0.0% 104 0 0.0% Q4 2025 Feb 11, 2026
Russell Investments Group, Ltd. History Reduced 1,223 45 0.0% 0.0% 106 -100 -7.56% Q4 2025 Feb 17, 2026
Tower Research Capital LLC (TRC) History Reduced 1,159 42 0.0% 0.0% 107 -684 -37.11% Q4 2025 Feb 17, 2026
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM History Added to 950 35 0.0% 0.0% 108 +813 593.43% Q4 2025 Feb 17, 2026
ROYAL BANK OF CANADA History New 558 21 0.0% 109 +558 New Q4 2025 Feb 17, 2026
THOMPSON INVESTMENT MANAGEMENT, INC. History No change 1,000 19 0.0% 0.0% 110 0 0.0% Q4 2025 Jan 14, 2026
AMALGAMATED BANK History Reduced 485 18 0.0% 0.0% 111 -15 -3.0% Q4 2025 Feb 05, 2026
Sterling Capital Management LLC History Reduced 413 15 0.0% 0.0% 112 -32 -7.19% Q4 2025 Feb 13, 2026
Quarry LP History New 151 5 0.0% 114 +151 New Q4 2025 Feb 13, 2026
IFP Advisors, Inc History New 135 5 0.0% 113 +135 New Q4 2025 Feb 06, 2026
PNC FINANCIAL SERVICES GROUP, INC. History Reduced 113 4 0.0% 0.0% 115 -4,043 -97.28% Q4 2025 Feb 06, 2026
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC History New 82 3 0.0% 116 +82 New Q4 2025 Feb 13, 2026
Steward Partners Investment Advisory, LLC History No change 84 3 0.0% 0.0% 117 0 0.0% Q4 2025 Feb 12, 2026
Allworth Financial LP History New 43 1 0.0% 119 +43 New Q4 2025 Feb 05, 2026
MAI Capital Management History New 31 1 0.0% 118 +31 New Q4 2025 Feb 13, 2026
Capital World Investors History Closed out 0 0 0.01% -1,753,475 -100.0% Q3 2025 Nov 13, 2025
River Road Asset Management, LLC History Closed out 0 0 0.24% -579,134 -100.0% Q3 2025 Nov 12, 2025
LOOMIS SAYLES & CO L P History Closed out 0 0 0.01% -211,480 -100.0% Q3 2025 Nov 13, 2025
Ghisallo Capital Management LLC History Closed out 0 0 0.2% -165,000 -100.0% Q3 2025 Nov 14, 2025
ADAGE CAPITAL PARTNERS GP, L.L.C. History Closed out 0 0 0.01% -112,500 -100.0% Q3 2025 Nov 14, 2025
Morningstar Investment Management LLC History Closed out 0 0 0.07% -49,491 -100.0% Q3 2025 Nov 17, 2025
Longaeva Partners L.P. History Closed out 0 0 0.21% -39,189 -100.0% Q3 2025 Nov 14, 2025
Walleye Capital LLC History Closed out 0 0 0.0% -34,700 -100.0% Q3 2025 Nov 14, 2025
Lighthouse Investment Partners, LLC History Closed out 0 0 0.04% -31,613 -100.0% Q3 2025 Nov 14, 2025
JENNISON ASSOCIATES LLC History Closed out 0 0 0.0% -13,979 -100.0% Q3 2025 Oct 30, 2025
BALYASNY ASSET MANAGEMENT L.P. History Closed out 0 0 0.0% -8,324 -100.0% Q3 2025 Nov 14, 2025
GABELLI & Co INVESTMENT ADVISERS, INC. History Closed out 0 0 0.05% -8,100 -100.0% Q3 2025 Nov 12, 2025
Grey Fox Wealth Advisors, LLC History Closed out 0 0 0.01% -861 -100.0% Q3 2025 Oct 29, 2025
ROTHSCHILD INVESTMENT LLC History New 22 0 +22 New Q4 2025 Feb 10, 2026
Farther Finance Advisors, LLC History New 17 0 +17 New Q4 2025 Jan 23, 2026
Caitong International Asset Management Co., Ltd History New 14 0 +14 New Q4 2025 Mar 03, 2026
GAMMA Investing LLC History New 9 0 +9 New Q4 2025 Jan 05, 2026
EverSource Wealth Advisors, LLC History New 5 0 +5 New Q4 2025 Feb 06, 2026
CIBC Private Wealth Group LLC History New 2 0 +2 New Q4 2025 Feb 12, 2026