Accelerant Holdings - ARX
Detailed investor-level table based on 13F positions.
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| SECURITY BENEFIT LIFE INSURANCE CO /KS/ | History | No change | 5,866,257 | 78,373 | 41.18% | 39.61% | 1 | 0 | 0.0% | Q1 2026 | May 04, 2026 |
| Capital World Investors | History | Reduced | 5,152,741 | 68,840 | 0.01% | 0.01% | 2 | -614,890 | -10.66% | Q1 2026 | May 13, 2026 |
| Keenan Capital, LLC | History | Added to | 3,992,923 | 53,345 | 11.26% | 9.35% | 3 | +852,943 | 27.16% | Q1 2026 | May 15, 2026 |
| GILDER GAGNON HOWE & CO LLC | History | Added to | 3,743,364 | 50,011 | 0.6% | 0.64% | 4 | +40,286 | 1.09% | Q1 2026 | May 15, 2026 |
| BARINGS LLC | History | No change | 3,128,867 | 46,056 | 0.74% | 0.77% | 5 | 0 | 0.0% | Q1 2026 | May 06, 2026 |
| ALLIANCEBERNSTEIN L.P. | History | Reduced | 2,800,188 | 45,783 | 0.01% | 0.01% | 6 | -46,280 | -1.63% | Q1 2026 | May 15, 2026 |
| AMERICAN CENTURY COMPANIES INC | History | Added to | 3,188,505 | 42,598 | 0.02% | 0.01% | 7 | +1,660,054 | 108.61% | Q1 2026 | May 15, 2026 |
| VANGUARD GROUP INC | History | No change | 2,235,136 | 36,544 | 0.0% | 0.0% | 8 | 0 | 0.0% | Q4 2025 | Jan 29, 2026 |
| MARSHALL WACE, LLP | History | Added to | 2,274,152 | 30,382 | 0.03% | 0.01% | 9 | +1,926,005 | 553.22% | Q1 2026 | May 14, 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | History | New | 2,113,565 | 28,237 | 0.0% | — | 10 | +2,113,565 | New | Q1 2026 | May 08, 2026 |
| JPMORGAN CHASE & CO | History | Added to | 2,020,368 | 26,891 | 0.0% | 0.0% | 11 | +67,372 | 3.45% | Q1 2026 | May 13, 2026 |
| Azora Capital LP | History | Reduced | 1,980,211 | 26,455 | 1.74% | 2.51% | 12 | -458,883 | -18.81% | Q1 2026 | May 15, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | History | New | 1,938,938 | 25,904 | 0.0% | — | 13 | +1,938,938 | New | Q1 2026 | May 15, 2026 |
| Cresset Asset Management, LLC | History | New | 1,839,620 | 24,577 | 0.11% | — | 14 | +1,839,620 | New | Q1 2026 | May 15, 2026 |
| FMR LLC | History | Added to | 1,812,207 | 24,211 | 0.0% | 0.0% | 15 | +24,072 | 1.35% | Q1 2026 | May 15, 2026 |
| ArrowMark Colorado Holdings LLC | History | Reduced | 1,548,224 | 20,684 | 0.55% | 0.59% | 16 | -95,789 | -5.83% | Q1 2026 | May 15, 2026 |
| BAMCO INC /NY/ | History | Reduced | 1,208,794 | 16,149 | 0.05% | 0.05% | 17 | -320 | -0.03% | Q1 2026 | May 15, 2026 |
| CITADEL ADVISORS LLC | History | Added to | 1,178,006 | 15,738 | 0.0% | 0.0% | 18 | +422,454 | 55.91% | Q1 2026 | May 15, 2026 |
| T. Rowe Price Investment Management, Inc. | History | Added to | 975,936 | 13,039 | 0.01% | 0.01% | 19 | +604,136 | 162.49% | Q1 2026 | May 15, 2026 |
| Qube Research & Technologies Ltd | History | New | 930,942 | 12,437 | 0.01% | — | 20 | +930,942 | New | Q1 2026 | May 15, 2026 |
| JANE STREET GROUP, LLC | History | New | 860,697 | 11,498 | 0.0% | — | 21 | +860,697 | New | Q1 2026 | May 12, 2026 |
| NORGES BANK | History | No change | 665,076 | 10,873 | 0.0% | 0.0% | 22 | 0 | 0.0% | Q4 2025 | Feb 10, 2026 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | History | New | 708,046 | 9,459 | 0.0% | — | 23 | +708,046 | New | Q1 2026 | May 15, 2026 |
| UBS Group AG | History | Added to | 685,647 | 9,160 | 0.0% | 0.0% | 24 | +150,010 | 28.01% | Q1 2026 | May 05, 2026 |
| G2 Investment Partners Management LLC | History | Added to | 372,811 | 4,980 | 1.23% | 0.36% | 25 | +279,470 | 299.41% | Q1 2026 | May 15, 2026 |
| Woodline Partners LP | History | Added to | 367,157 | 4,905 | 0.02% | 0.01% | 26 | +169,845 | 86.08% | Q1 2026 | May 15, 2026 |
| BNP PARIBAS FINANCIAL MARKETS | History | Added to | 305,244 | 4,078 | 0.0% | 0.0% | 27 | +269,466 | 753.16% | Q1 2026 | May 12, 2026 |
| MORGAN STANLEY | History | Added to | 287,175 | 3,836 | 0.0% | 0.0% | 28 | +178,945 | 165.34% | Q1 2026 | May 15, 2026 |
| RENAISSANCE TECHNOLOGIES LLC | History | Added to | 276,600 | 3,695 | 0.01% | 0.0% | 29 | +203,900 | 280.47% | Q1 2026 | May 14, 2026 |
| XTX Topco Ltd | History | Added to | 237,669 | 3,175 | 0.06% | 0.05% | 30 | +131,421 | 123.69% | Q1 2026 | May 15, 2026 |
| Squarepoint Ops LLC | History | Added to | 212,791 | 2,842 | 0.0% | 0.0% | 31 | +13,721 | 6.89% | Q1 2026 | May 15, 2026 |
| Owls Nest Partners IA, LLC | History | New | 209,707 | 2,801 | 0.98% | — | 32 | +209,707 | New | Q1 2026 | May 14, 2026 |
| SEVEN GRAND MANAGERS, LLC | History | No change | 200,000 | 2,672 | 0.18% | 0.25% | 33 | 0 | 0.0% | Q1 2026 | May 06, 2026 |
| BANK OF AMERICA CORP /DE/ | History | Reduced | 180,186 | 2,407 | 0.0% | 0.0% | 34 | -155,553 | -46.33% | Q1 2026 | May 15, 2026 |
| Point72 Asset Management, L.P. | History | New | 166,692 | 2,227 | 0.0% | — | 35 | +166,692 | New | Q1 2026 | May 15, 2026 |
| BlackRock, Inc. | History | Reduced | 165,564 | 2,211 | 0.0% | 0.0% | 36 | -82,092 | -33.15% | Q1 2026 | May 13, 2026 |
| CANNELL CAPITAL LLC | History | New | 156,149 | 2,086 | 1.28% | — | 37 | +156,149 | New | Q1 2026 | May 15, 2026 |
| Militia Capital Management LLC | History | New | 150,000 | 2,004 | 0.45% | — | 38 | +150,000 | New | Q1 2026 | May 13, 2026 |
| Trexquant Investment LP | History | New | 149,119 | 1,992 | 0.01% | — | 39 | +149,119 | New | Q1 2026 | May 15, 2026 |
| Robertson Opportunity Capital, LLC | History | New | 135,012 | 1,803 | 0.69% | — | 40 | +135,012 | New | Q1 2026 | May 12, 2026 |
| MILLENNIUM MANAGEMENT LLC | History | Reduced | 125,068 | 1,670 | 0.0% | 0.0% | 41 | -56,579 | -31.15% | Q1 2026 | May 15, 2026 |
| Schonfeld Strategic Advisors LLC | History | Added to | 113,795 | 1,520 | 0.01% | 0.0% | 42 | +56,584 | 98.9% | Q1 2026 | May 15, 2026 |
| Burkehill Global Management, LP | History | No change | 100,000 | 1,336 | 0.07% | 0.11% | 43 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| Jain Global LLC | History | Added to | 86,418 | 1,154 | 0.0% | 0.0% | 44 | +36,184 | 72.03% | Q1 2026 | May 15, 2026 |
| Lighthouse Investment Partners, LLC | History | Reduced | 85,406 | 1,141 | 0.04% | 0.1% | 45 | -113,444 | -57.05% | Q1 2026 | May 14, 2026 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | History | Added to | 82,680 | 1,104 | 0.0% | 0.0% | 46 | +23,266 | 39.16% | Q1 2026 | May 13, 2026 |
| BOOTHBAY FUND MANAGEMENT, LLC | History | Added to | 78,677 | 1,051 | 0.01% | 0.01% | 47 | +52,677 | 202.6% | Q1 2026 | May 15, 2026 |
| Swiss National Bank | History | No change | 77,900 | 1,040 | 0.0% | 0.0% | 48 | 0 | 0.0% | Q1 2026 | May 07, 2026 |
| TIGER GLOBAL MANAGEMENT LLC | History | No change | 75,000 | 1,002 | 0.0% | 0.0% | 49 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| SEI INVESTMENTS CO | History | Added to | 73,935 | 987 | 0.0% | 0.0% | 50 | +36,033 | 95.07% | Q1 2026 | May 13, 2026 |
| SummitTX Capital, L.P. | History | Added to | 62,999 | 841 | 0.03% | 0.03% | 51 | +6,219 | 10.95% | Q1 2026 | May 15, 2026 |
| Hudson Bay Capital Management LP | History | Added to | 55,276 | 738 | 0.0% | 0.0% | 52 | +23,026 | 71.4% | Q1 2026 | May 13, 2026 |
| Brevan Howard Capital Management LP | History | New | 54,416 | 726 | 0.01% | — | 53 | +54,416 | New | Q1 2026 | May 15, 2026 |
| STATE OF WISCONSIN INVESTMENT BOARD | History | Added to | 53,463 | 714 | 0.0% | 0.0% | 54 | +28,194 | 111.58% | Q1 2026 | May 15, 2026 |
| Interval Partners, LP | History | Reduced | 49,534 | 661 | 0.02% | 0.05% | 55 | -119,814 | -70.75% | Q1 2026 | May 15, 2026 |
| VANGUARD FIDUCIARY TRUST CO | History | New | 47,960 | 640 | 0.0% | — | 56 | +47,960 | New | Q1 2026 | May 08, 2026 |
| BARCLAYS PLC | History | Added to | 46,693 | 623 | 0.0% | 0.0% | 57 | +36,318 | 350.05% | Q1 2026 | May 14, 2026 |
| Engineers Gate Manager LP | History | New | 44,016 | 588 | 0.01% | — | 58 | +44,016 | New | Q1 2026 | May 15, 2026 |
| Jump Financial, LLC | History | New | 44,005 | 587 | 0.01% | — | 59 | +44,005 | New | Q1 2026 | May 14, 2026 |
| GOLDMAN SACHS GROUP INC | History | Reduced | 41,669 | 556 | 0.0% | 0.0% | 60 | -260,957 | -86.23% | Q1 2026 | May 15, 2026 |
| Grandeur Peak Global Advisors, LLC | History | Reduced | 39,573 | 528 | 0.12% | 3.57% | 61 | -1,581,449 | -97.56% | Q1 2026 | May 15, 2026 |
| Jefferies Financial Group Inc. | History | Reduced | 39,178 | 523 | 0.0% | 0.0% | 62 | -5,802 | -12.9% | Q1 2026 | May 07, 2026 |
| Aquatic Capital Management LLC | History | New | 37,435 | 500 | 0.01% | — | 63 | +37,435 | New | Q1 2026 | May 15, 2026 |
| STATE STREET CORP | History | Added to | 37,306 | 498 | 0.0% | 0.0% | 64 | +3,752 | 11.18% | Q1 2026 | May 15, 2026 |
| Bank of New York Mellon Corp | History | New | 36,556 | 488 | 0.0% | — | 65 | +36,556 | New | Q1 2026 | May 05, 2026 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM | History | No change | 34,972 | 467 | 0.0% | 0.0% | 66 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| Catalyst Funds Management Pty Ltd | History | New | 34,900 | 466 | 0.08% | — | 67 | +34,900 | New | Q1 2026 | May 11, 2026 |
| Zurcher Kantonalbank (Zurich Cantonalbank) | History | No change | 32,300 | 431 | 0.0% | 0.0% | 68 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| WELLS FARGO & COMPANY/MN | History | New | 28,850 | 385 | 0.0% | — | 69 | +28,850 | New | Q1 2026 | May 11, 2026 |
| Quadrature Capital Ltd | History | Added to | 28,000 | 374 | 0.0% | 0.0% | 70 | +11,437 | 69.05% | Q1 2026 | May 15, 2026 |
| VANGUARD ASSET MANAGEMENT, Ltd | History | New | 26,856 | 358 | 0.0% | — | 71 | +26,856 | New | Q1 2026 | May 08, 2026 |
| LANDSCAPE CAPITAL MANAGEMENT, L.L.C. | History | Added to | 26,768 | 357 | 0.02% | 0.01% | 72 | +13,880 | 107.7% | Q1 2026 | May 12, 2026 |
| JANUS HENDERSON GROUP PLC | History | No change | 23,500 | 314 | 0.0% | 0.0% | 73 | 0 | 0.0% | Q1 2026 | May 18, 2026 |
| Centiva Capital, LP | History | Reduced | 20,443 | 273 | 0.0% | 0.02% | 74 | -107,162 | -83.98% | Q1 2026 | May 14, 2026 |
| Legal & General Group Plc | History | Reduced | 19,167 | 256 | 0.0% | 0.0% | 75 | -11,104 | -36.68% | Q1 2026 | May 08, 2026 |
| Entropy Technologies, LP | History | New | 17,909 | 239 | 0.01% | — | 76 | +17,909 | New | Q1 2026 | May 14, 2026 |
| NORTHERN TRUST CORP | History | Added to | 16,419 | 219 | 0.0% | 0.0% | 77 | +1,600 | 10.8% | Q1 2026 | May 14, 2026 |
| NATIXIS ADVISORS, LLC | History | Reduced | 15,470 | 207 | 0.0% | 0.0% | 78 | -7,877 | -33.74% | Q1 2026 | May 13, 2026 |
| Man Group plc | History | New | 14,144 | 188 | 0.0% | — | 79 | +14,144 | New | Q1 2026 | May 15, 2026 |
| WINTON GROUP Ltd | History | New | 13,800 | 184 | 0.01% | — | 80 | +13,800 | New | Q1 2026 | May 12, 2026 |
| JONES FINANCIAL COMPANIES LLLP | History | Added to | 14,118 | 183 | 0.0% | — | 81 | +14,100 | 78333.33% | Q1 2026 | May 15, 2026 |
| Graham Capital Management, L.P. | History | New | 13,622 | 181 | 0.0% | — | 82 | +13,622 | New | Q1 2026 | May 15, 2026 |
| LMR Partners LLP | History | New | 11,672 | 155 | 0.0% | — | 83 | +11,672 | New | Q1 2026 | May 15, 2026 |
| Tower Research Capital LLC (TRC) | History | Added to | 11,392 | 152 | 0.0% | 0.0% | 84 | +11,299 | 12149.46% | Q1 2026 | May 15, 2026 |
| Arizona State Retirement System | History | Reduced | 10,838 | 144 | 0.0% | 0.0% | 85 | -17 | -0.16% | Q1 2026 | May 01, 2026 |
| Vanguard Investments Australia, Ltd. | History | New | 10,677 | 142 | 0.0% | — | 86 | +10,677 | New | Q1 2026 | May 08, 2026 |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE | History | New | 10,229 | 136 | 0.0% | — | 87 | +10,229 | New | Q1 2026 | May 15, 2026 |
| Arcus Capital Partners, LLC | History | New | 10,100 | 134 | 0.05% | — | 88 | +10,100 | New | Q1 2026 | May 06, 2026 |
| WESBANCO BANK INC | History | No change | 10,000 | 133 | 0.0% | 0.0% | 89 | 0 | 0.0% | Q1 2026 | Apr 21, 2026 |
| KLP KAPITALFORVALTNING AS | History | No change | 8,500 | 113 | 0.0% | 0.0% | 90 | 0 | 0.0% | Q1 2026 | Apr 29, 2026 |
| ROYAL BANK OF CANADA | History | Added to | 7,729 | 103 | 0.0% | 0.0% | 91 | +2,585 | 50.25% | Q1 2026 | May 15, 2026 |
| CWM, LLC | History | No change | 6,666 | 89 | 0.0% | 0.0% | 92 | 0 | 0.0% | Q1 2026 | May 14, 2026 |
| PNC FINANCIAL SERVICES GROUP, INC. | History | Added to | 6,157 | 82 | 0.0% | 0.0% | 93 | +2,611 | 73.63% | Q1 2026 | May 08, 2026 |
| CITIGROUP INC | History | Reduced | 3,833 | 51 | 0.0% | 0.0% | 94 | -1,247 | -24.55% | Q1 2026 | May 11, 2026 |
| OSAIC HOLDINGS, INC. | History | Added to | 3,498 | 46 | 0.0% | 0.0% | 95 | +3,100 | 778.89% | Q1 2026 | May 15, 2026 |
| State of Wyoming | History | New | 2,075 | 27 | 0.0% | — | 96 | +2,075 | New | Q1 2026 | May 13, 2026 |
| Federation des caisses Desjardins du Quebec | History | New | 750 | 10 | 0.0% | — | 97 | +750 | New | Q1 2026 | May 13, 2026 |
| FIRST HORIZON CORP | History | Added to | 677 | 9 | 0.0% | 0.0% | 98 | +32 | 4.96% | Q1 2026 | Apr 30, 2026 |
| Parallel Advisors, LLC | History | No change | 666 | 8 | 0.0% | 0.0% | 99 | 0 | 0.0% | Q1 2026 | Jun 02, 2026 |
| SIMPLEX TRADING, LLC | History | Reduced | 558 | 7 | 0.0% | 0.0% | 100 | -1,006 | -64.32% | Q1 2026 | May 14, 2026 |
| SJS Investment Consulting Inc. | History | New | 164 | 2 | 0.0% | — | 102 | +164 | New | Q1 2026 | Apr 23, 2026 |
| Rachor Investment Advisory Services, LLC | History | Added to | 209 | 2 | 0.0% | 0.0% | 101 | +74 | 54.81% | Q1 2026 | May 07, 2026 |
| Caitong International Asset Management Co., Ltd | History | New | 143 | 1 | 0.0% | — | 105 | +143 | New | Q1 2026 | May 11, 2026 |
| Farther Finance Advisors, LLC | History | Reduced | 124 | 1 | 0.0% | 0.0% | 104 | -30 | -19.48% | Q1 2026 | Apr 07, 2026 |
| NATIONAL BANK OF CANADA /FI/ | History | No change | 144 | 1 | 0.0% | 0.0% | 103 | 0 | 0.0% | Q1 2026 | May 14, 2026 |
| BALYASNY ASSET MANAGEMENT L.P. | History | Closed out | 0 | 0 | — | 0.06% | — | -2,733,595 | -100.0% | Q1 2026 | May 15, 2026 |
| FRED ALGER MANAGEMENT, LLC | History | Closed out | 0 | 0 | — | 0.03% | — | -439,698 | -100.0% | Q1 2026 | May 15, 2026 |
| TEACHER RETIREMENT SYSTEM OF TEXAS | History | Closed out | 0 | 0 | — | 0.01% | — | -176,043 | -100.0% | Q1 2026 | Apr 30, 2026 |
| Counterpoint Mutual Funds LLC | History | Closed out | 0 | 0 | — | 0.21% | — | -175,967 | -100.0% | Q1 2026 | Apr 27, 2026 |
| Lykos Global Management, LP | History | Closed out | 0 | 0 | — | 2.02% | — | -175,000 | -100.0% | Q1 2026 | May 15, 2026 |
| Neuberger Berman Group LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -160,047 | -100.0% | Q1 2026 | May 14, 2026 |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND | History | Closed out | 0 | 0 | — | 0.0% | — | -150,000 | -100.0% | Q1 2026 | May 14, 2026 |
| Walleye Capital LLC | History | Closed out | 0 | 0 | — | 0.01% | — | -125,880 | -100.0% | Q1 2026 | May 13, 2026 |
| Ghisallo Capital Management LLC | History | Closed out | 0 | 0 | — | 0.07% | — | -100,000 | -100.0% | Q1 2026 | May 15, 2026 |
| Yorktown Management & Research Co Inc | History | Closed out | 0 | 0 | — | 0.77% | — | -59,300 | -100.0% | Q1 2026 | Apr 20, 2026 |
| D. E. Shaw & Co., Inc. | History | Closed out | 0 | 0 | — | 0.0% | — | -34,694 | -100.0% | Q1 2026 | May 15, 2026 |
| PharVision Advisers, LLC | History | Closed out | 0 | 0 | — | 0.2% | — | -23,839 | -100.0% | Q1 2026 | May 11, 2026 |
| GSA CAPITAL PARTNERS LLP | History | Closed out | 0 | 0 | — | 0.03% | — | -23,518 | -100.0% | Q1 2026 | May 08, 2026 |
| Crestwood Capital Management, L.P. | History | Closed out | 0 | 0 | — | 0.21% | — | -20,000 | -100.0% | Q1 2026 | May 12, 2026 |
| FJ Capital Management LLC | History | Closed out | 0 | 0 | — | 0.03% | — | -17,973 | -100.0% | Q1 2026 | May 15, 2026 |
| Quantbot Technologies LP | History | Closed out | 0 | 0 | — | 0.01% | — | -16,398 | -100.0% | Q1 2026 | May 13, 2026 |
| ENVESTNET ASSET MANAGEMENT INC | History | Closed out | 0 | 0 | — | 0.0% | — | -10,292 | -100.0% | Q1 2026 | May 04, 2026 |
| Ancora Advisors LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -5,300 | -100.0% | Q1 2026 | May 15, 2026 |
| ACADIAN ASSET MANAGEMENT LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -5,016 | -100.0% | Q1 2026 | May 13, 2026 |
| Quarry LP | History | Closed out | 0 | 0 | — | 0.0% | — | -1,611 | -100.0% | Q1 2026 | May 15, 2026 |
| HM PAYSON & CO | History | Closed out | 0 | 0 | — | 0.0% | — | -419 | -100.0% | Q1 2026 | Apr 13, 2026 |
| GROUP ONE TRADING LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -300 | -100.0% | Q1 2026 | May 13, 2026 |
| Steward Partners Investment Advisory, LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -119 | -100.0% | Q1 2026 | May 08, 2026 |
| SBI Securities Co., Ltd. | History | Reduced | 21 | 0 | — | 0.0% | — | -80 | -79.21% | Q1 2026 | Apr 27, 2026 |
| GAMMA Investing LLC | History | Added to | 69 | 0 | — | — | — | +60 | 666.67% | Q1 2026 | Apr 06, 2026 |
| MAI Capital Management | History | Reduced | 27 | 0 | — | — | — | -30 | -52.63% | Q1 2026 | May 15, 2026 |
| Rakuten Securities, Inc. | History | No change | 1 | 0 | — | — | — | 0 | 0.0% | Q1 2026 | May 01, 2026 |