Accelerant Holdings - ARX
Detailed investor-level table based on 13F positions.
Early Q1 2026 data: only 2 institutional holders reported so far. The full shareholder list will grow as more funds file with the SEC.
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 | 95,913 | 39.61% | 32.51% | 1 | 0 | 0.0% | Q4 2025 | Feb 03, 2026 |
| Capital World Investors | History | Added to | 5,767,631 | 94,300 | 0.01% | 0.01% | 2 | +14,381 | 0.25% | Q4 2025 | Feb 11, 2026 |
| GILDER GAGNON HOWE & CO LLC | History | Reduced | 3,703,078 | 60,545 | 0.64% | 0.59% | 3 | -195,194 | -5.01% | Q4 2025 | Feb 17, 2026 |
| Keenan Capital, LLC | History | New | 3,139,980 | 51,338 | 9.35% | — | 4 | +3,139,980 | New | Q4 2025 | Feb 13, 2026 |
| ALLIANCEBERNSTEIN L.P. | History | Added to | 2,846,468 | 46,539 | 0.01% | 0.01% | 5 | +57,384 | 2.06% | Q4 2025 | Feb 17, 2026 |
| BALYASNY ASSET MANAGEMENT L.P. | History | Added to | 2,733,595 | 44,694 | 0.06% | 0.04% | 6 | +714,811 | 35.41% | Q4 2025 | Feb 17, 2026 |
| BARINGS LLC | History | No change | 3,128,867 | 41,926 | 0.77% | 0.88% | 7 | 0 | 0.0% | Q4 2025 | Feb 12, 2026 |
| Azora Capital LP | History | Added to | 2,439,094 | 39,879 | 2.51% | 0.43% | 8 | +1,811,976 | 288.94% | Q4 2025 | Feb 17, 2026 |
| VANGUARD GROUP INC | History | Reduced | 2,235,136 | 36,544 | 0.0% | 0.0% | 9 | -13,471 | -0.6% | Q4 2025 | Jan 29, 2026 |
| JPMORGAN CHASE & CO | History | Added to | 1,952,996 | 31,931 | 0.0% | 0.0% | 10 | +342,133 | 21.24% | Q4 2025 | Feb 11, 2026 |
| FMR LLC | History | Added to | 1,788,135 | 29,236 | 0.0% | 0.0% | 11 | +1,229,490 | 220.08% | Q4 2025 | Feb 17, 2026 |
| ArrowMark Colorado Holdings LLC | History | Added to | 1,644,013 | 26,879 | 0.59% | 0.29% | 12 | +612,409 | 59.36% | Q4 2025 | Feb 17, 2026 |
| Grandeur Peak Global Advisors, LLC | History | Added to | 1,621,022 | 26,503 | 3.57% | 1.89% | 13 | +675,093 | 71.37% | Q4 2025 | Feb 13, 2026 |
| AMERICAN CENTURY COMPANIES INC | History | Added to | 1,528,451 | 24,990 | 0.01% | 0.01% | 14 | +615,626 | 67.44% | Q4 2025 | Feb 13, 2026 |
| BAMCO INC /NY/ | History | Reduced | 1,209,114 | 19,769 | 0.05% | 0.05% | 15 | -9,195 | -0.75% | Q4 2025 | Feb 17, 2026 |
| CITADEL ADVISORS LLC | History | Reduced | 755,552 | 12,353 | 0.0% | 0.0% | 16 | -269,535 | -26.29% | Q4 2025 | Feb 17, 2026 |
| NORGES BANK | History | New | 665,076 | 10,873 | 0.0% | — | 17 | +665,076 | New | Q4 2025 | Feb 10, 2026 |
| UBS Group AG | History | Added to | 535,637 | 8,757 | 0.0% | 0.0% | 18 | +411,612 | 331.88% | Q4 2025 | Jan 29, 2026 |
| FRED ALGER MANAGEMENT, LLC | History | Reduced | 439,698 | 7,189 | 0.03% | 0.03% | 19 | -81,217 | -15.59% | Q4 2025 | Feb 17, 2026 |
| T. Rowe Price Investment Management, Inc. | History | Reduced | 371,800 | 6,079 | 0.0% | 0.02% | 20 | -1,984,001 | -84.22% | Q4 2025 | Feb 19, 2026 |
| MARSHALL WACE, LLP | History | Added to | 348,147 | 5,692 | 0.01% | 0.0% | 21 | +242,932 | 230.89% | Q4 2025 | Feb 13, 2026 |
| BANK OF AMERICA CORP /DE/ | History | Reduced | 335,739 | 5,489 | 0.0% | 0.0% | 22 | -174,641 | -34.22% | Q4 2025 | Feb 17, 2026 |
| GOLDMAN SACHS GROUP INC | History | Added to | 302,626 | 4,947 | 0.0% | 0.0% | 23 | +208,279 | 220.76% | Q4 2025 | Mar 25, 2026 |
| BlackRock, Inc. | History | Reduced | 247,656 | 4,049 | 0.0% | 0.0% | 24 | -2,059,045 | -89.26% | Q4 2025 | Feb 12, 2026 |
| SEVEN GRAND MANAGERS, LLC | History | No change | 200,000 | 3,270 | 0.25% | 0.24% | 25 | 0 | 0.0% | Q4 2025 | Feb 10, 2026 |
| Squarepoint Ops LLC | History | Reduced | 199,070 | 3,254 | 0.0% | 0.0% | 26 | -30,825 | -13.41% | Q4 2025 | Feb 13, 2026 |
| Lighthouse Investment Partners, LLC | History | Added to | 198,850 | 3,251 | 0.1% | 0.08% | 27 | +26,539 | 15.4% | Q4 2025 | Feb 17, 2026 |
| Woodline Partners LP | History | Added to | 197,312 | 3,226 | 0.01% | 0.01% | 28 | +51,899 | 35.69% | Q4 2025 | Feb 17, 2026 |
| MILLENNIUM MANAGEMENT LLC | History | Reduced | 181,647 | 2,969 | 0.0% | 0.01% | 29 | -690,433 | -79.17% | Q4 2025 | Feb 17, 2026 |
| TEACHER RETIREMENT SYSTEM OF TEXAS | History | Added to | 176,043 | 2,878 | 0.01% | 0.01% | 30 | +1,043 | 0.6% | Q4 2025 | Jan 28, 2026 |
| Counterpoint Mutual Funds LLC | History | New | 175,967 | 2,877 | 0.21% | — | 31 | +175,967 | New | Q4 2025 | Feb 12, 2026 |
| Lykos Global Management, LP | History | New | 175,000 | 2,861 | 2.02% | — | 32 | +175,000 | New | Q4 2025 | Feb 17, 2026 |
| Interval Partners, LP | History | Reduced | 169,348 | 2,768 | 0.05% | 0.05% | 33 | -47,662 | -21.96% | Q4 2025 | Feb 17, 2026 |
| Neuberger Berman Group LLC | History | Reduced | 160,047 | 2,616 | 0.0% | 0.01% | 34 | -586,070 | -78.55% | Q4 2025 | Feb 13, 2026 |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND | History | No change | 150,000 | 2,452 | 0.0% | 0.0% | 35 | 0 | 0.0% | Q4 2025 | Feb 13, 2026 |
| Centiva Capital, LP | History | Reduced | 127,605 | 2,086 | 0.02% | 0.02% | 36 | -23,428 | -15.51% | Q4 2025 | Feb 13, 2026 |
| Walleye Capital LLC | History | Reduced | 125,880 | 2,058 | 0.01% | 0.02% | 37 | -173,920 | -58.01% | Q4 2025 | Feb 13, 2026 |
| MORGAN STANLEY | History | Added to | 108,230 | 1,769 | 0.0% | 0.0% | 38 | +18,131 | 20.12% | Q4 2025 | Feb 13, 2026 |
| XTX Topco Ltd | History | Added to | 106,248 | 1,737 | 0.05% | 0.05% | 39 | +42,383 | 66.36% | Q4 2025 | Feb 17, 2026 |
| Ghisallo Capital Management LLC | History | Reduced | 100,000 | 1,635 | 0.07% | 0.21% | 40 | -325,000 | -76.47% | Q4 2025 | Feb 17, 2026 |
| Burkehill Global Management, LP | History | No change | 100,000 | 1,635 | 0.11% | 0.08% | 41 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| G2 Investment Partners Management LLC | History | New | 93,341 | 1,526 | 0.36% | — | 42 | +93,341 | New | Q4 2025 | Feb 17, 2026 |
| Swiss National Bank | History | New | 77,900 | 1,273 | 0.0% | — | 43 | +77,900 | New | Q4 2025 | Feb 12, 2026 |
| TIGER GLOBAL MANAGEMENT LLC | History | No change | 75,000 | 1,226 | 0.0% | 0.0% | 44 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| RENAISSANCE TECHNOLOGIES LLC | History | New | 72,700 | 1,188 | 0.0% | — | 45 | +72,700 | New | Q4 2025 | Feb 12, 2026 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | History | New | 59,414 | 971 | 0.0% | — | 46 | +59,414 | New | Q4 2025 | Feb 13, 2026 |
| Yorktown Management & Research Co Inc | History | New | 59,300 | 969 | 0.77% | — | 47 | +59,300 | New | Q4 2025 | Jan 23, 2026 |
| Schonfeld Strategic Advisors LLC | History | Reduced | 57,211 | 935 | 0.0% | 0.01% | 48 | -99,451 | -63.48% | Q4 2025 | Feb 17, 2026 |
| SummitTX Capital, L.P. | History | Added to | 56,780 | 928 | 0.03% | 0.02% | 49 | +24,860 | 77.88% | Q4 2025 | Feb 17, 2026 |
| Jain Global LLC | History | Reduced | 50,234 | 821 | 0.0% | 0.01% | 50 | -149,766 | -74.88% | Q4 2025 | Feb 17, 2026 |
| Jefferies Financial Group Inc. | History | Added to | 44,980 | 735 | 0.0% | 0.0% | 51 | +34,980 | 349.8% | Q4 2025 | Feb 09, 2026 |
| SEI INVESTMENTS CO | History | Added to | 37,902 | 619 | 0.0% | 0.0% | 52 | +7,972 | 26.64% | Q4 2025 | Feb 13, 2026 |
| BNP PARIBAS FINANCIAL MARKETS | History | New | 35,778 | 584 | 0.0% | — | 53 | +35,778 | New | Q4 2025 | Feb 10, 2026 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM | History | New | 34,972 | 571 | 0.0% | — | 54 | +34,972 | New | Q4 2025 | Feb 17, 2026 |
| D. E. Shaw & Co., Inc. | History | Reduced | 34,694 | 567 | 0.0% | 0.0% | 55 | -121,777 | -77.83% | Q4 2025 | Feb 17, 2026 |
| STATE STREET CORP | History | New | 33,554 | 548 | 0.0% | — | 56 | +33,554 | New | Q4 2025 | Feb 13, 2026 |
| Zurcher Kantonalbank (Zurich Cantonalbank) | History | New | 32,300 | 528 | 0.0% | — | 57 | +32,300 | New | Q4 2025 | Jan 27, 2026 |
| Hudson Bay Capital Management LP | History | Reduced | 32,250 | 527 | 0.0% | 0.0% | 58 | -52,048 | -61.74% | Q4 2025 | Feb 13, 2026 |
| Legal & General Group Plc | History | Added to | 30,271 | 494 | 0.0% | 0.0% | 59 | +20,271 | 202.71% | Q4 2025 | Feb 09, 2026 |
| BOOTHBAY FUND MANAGEMENT, LLC | History | New | 26,000 | 425 | 0.01% | — | 60 | +26,000 | New | Q4 2025 | Feb 17, 2026 |
| STATE OF WISCONSIN INVESTMENT BOARD | History | New | 25,269 | 413 | 0.0% | — | 61 | +25,269 | New | Q4 2025 | Feb 17, 2026 |
| PharVision Advisers, LLC | History | Added to | 23,839 | 389 | 0.2% | 0.14% | 62 | +7,566 | 46.49% | Q4 2025 | Feb 17, 2026 |
| GSA CAPITAL PARTNERS LLP | History | New | 23,518 | 385 | 0.03% | — | 63 | +23,518 | New | Q4 2025 | Feb 06, 2026 |
| JANUS HENDERSON GROUP PLC | History | Reduced | 23,500 | 384 | 0.0% | 0.0% | 64 | -519,784 | -95.67% | Q4 2025 | Feb 17, 2026 |
| NATIXIS ADVISORS, LLC | History | New | 23,347 | 382 | 0.0% | — | 65 | +23,347 | New | Q4 2025 | Feb 10, 2026 |
| Crestwood Capital Management, L.P. | History | No change | 20,000 | 327 | 0.21% | 0.21% | 66 | 0 | 0.0% | Q4 2025 | Feb 11, 2026 |
| FJ Capital Management LLC | History | New | 17,973 | 293 | 0.03% | — | 67 | +17,973 | New | Q4 2025 | Feb 13, 2026 |
| Quadrature Capital Ltd | History | Reduced | 16,563 | 270 | 0.0% | 0.01% | 68 | -54,196 | -76.59% | Q4 2025 | Feb 17, 2026 |
| Quantbot Technologies LP | History | New | 16,398 | 268 | 0.01% | — | 69 | +16,398 | New | Q4 2025 | Feb 10, 2026 |
| NORTHERN TRUST CORP | History | New | 14,819 | 242 | 0.0% | — | 70 | +14,819 | New | Q4 2025 | Feb 17, 2026 |
| LANDSCAPE CAPITAL MANAGEMENT, L.L.C. | History | New | 12,888 | 210 | 0.01% | — | 71 | +12,888 | New | Q4 2025 | Feb 13, 2026 |
| Arizona State Retirement System | History | New | 10,855 | 177 | 0.0% | — | 72 | +10,855 | New | Q4 2025 | Jan 28, 2026 |
| BARCLAYS PLC | History | New | 10,375 | 169 | 0.0% | — | 73 | +10,375 | New | Q4 2025 | Feb 13, 2026 |
| ENVESTNET ASSET MANAGEMENT INC | History | Reduced | 10,292 | 168 | 0.0% | 0.0% | 74 | -782 | -7.06% | Q4 2025 | Feb 10, 2026 |
| WESBANCO BANK INC | History | New | 10,000 | 163 | 0.0% | — | 75 | +10,000 | New | Q4 2025 | Feb 03, 2026 |
| KLP KAPITALFORVALTNING AS | History | New | 8,500 | 138 | 0.0% | — | 76 | +8,500 | New | Q4 2025 | Jan 28, 2026 |
| CWM, LLC | History | New | 6,666 | 109 | 0.0% | — | 77 | +6,666 | New | Q4 2025 | Jan 26, 2026 |
| Ancora Advisors LLC | History | New | 5,300 | 86 | 0.0% | — | 78 | +5,300 | New | Q4 2025 | Feb 17, 2026 |
| ROYAL BANK OF CANADA | History | New | 5,144 | 84 | 0.0% | — | 79 | +5,144 | New | Q4 2025 | Feb 17, 2026 |
| CITIGROUP INC | History | New | 5,080 | 83 | 0.0% | — | 80 | +5,080 | New | Q4 2025 | Feb 13, 2026 |
| ACADIAN ASSET MANAGEMENT LLC | History | New | 5,016 | 82 | 0.0% | — | 81 | +5,016 | New | Q4 2025 | Feb 10, 2026 |
| PNC FINANCIAL SERVICES GROUP, INC. | History | Added to | 3,546 | 57 | 0.0% | 0.0% | 82 | +722 | 25.57% | Q4 2025 | Feb 06, 2026 |
| Quarry LP | History | Reduced | 1,611 | 26 | 0.0% | 0.01% | 83 | -1,086 | -40.27% | Q4 2025 | Feb 13, 2026 |
| SIMPLEX TRADING, LLC | History | Added to | 1,564 | 25 | 0.0% | 0.0% | 84 | +364 | 30.33% | Q4 2025 | Feb 11, 2026 |
| Parallel Advisors, LLC | History | New | 666 | 10 | 0.0% | — | 86 | +666 | New | Q4 2025 | Feb 11, 2026 |
| FIRST HORIZON CORP | History | Added to | 645 | 10 | 0.0% | 0.0% | 85 | +351 | 119.39% | Q4 2025 | Jan 27, 2026 |
| HM PAYSON & CO | History | New | 419 | 6 | 0.0% | — | 87 | +419 | New | Q4 2025 | Feb 12, 2026 |
| OSAIC HOLDINGS, INC. | History | Added to | 398 | 6 | 0.0% | 0.0% | 88 | +273 | 218.4% | Q4 2025 | Feb 17, 2026 |
| GROUP ONE TRADING LLC | History | Reduced | 300 | 4 | 0.0% | 0.0% | 89 | -42,437 | -99.3% | Q4 2025 | Feb 12, 2026 |
| Farther Finance Advisors, LLC | History | New | 154 | 2 | 0.0% | — | 91 | +154 | New | Q4 2025 | Jan 23, 2026 |
| NATIONAL BANK OF CANADA /FI/ | History | New | 144 | 2 | 0.0% | — | 90 | +144 | New | Q4 2025 | Feb 17, 2026 |
| Rachor Investment Advisory Services, LLC | History | New | 135 | 2 | 0.0% | — | 92 | +135 | New | Q4 2025 | Jan 30, 2026 |
| Tower Research Capital LLC (TRC) | History | Reduced | 93 | 1 | 0.0% | 0.0% | 93 | -1,775 | -95.02% | Q4 2025 | Feb 17, 2026 |
| Steward Partners Investment Advisory, LLC | History | Reduced | 119 | 1 | 0.0% | 0.0% | 94 | -216 | -64.48% | Q4 2025 | Feb 12, 2026 |
| SBI Securities Co., Ltd. | History | Reduced | 101 | 1 | 0.0% | 0.0% | 95 | -66 | -39.52% | Q4 2025 | Feb 03, 2026 |
| DRIEHAUS CAPITAL MANAGEMENT LLC | History | Closed out | 0 | 0 | — | 0.11% | — | -1,011,940 | -100.0% | Q3 2025 | Nov 14, 2025 |
| Journey Advisory Group, LLC | History | Closed out | 0 | 0 | — | 0.58% | — | -432,526 | -100.0% | Q3 2025 | Nov 10, 2025 |
| CenterBook Partners LP | History | Closed out | 0 | 0 | — | 0.28% | — | -382,645 | -100.0% | Q3 2025 | Nov 07, 2025 |
| Dragoneer Investment Group, LLC | History | Closed out | 0 | 0 | — | 0.11% | — | -336,361 | -100.0% | Q3 2025 | Nov 14, 2025 |
| Verition Fund Management LLC | History | Closed out | 0 | 0 | — | 0.02% | — | -272,240 | -100.0% | Q3 2025 | Nov 14, 2025 |
| LMR Partners LLP | History | Closed out | 0 | 0 | — | 0.02% | — | -260,000 | -100.0% | Q3 2025 | Nov 14, 2025 |
| SOROS FUND MANAGEMENT LLC | History | Closed out | 0 | 0 | — | 0.05% | — | -225,000 | -100.0% | Q3 2025 | Nov 14, 2025 |
| DAVIDSON KEMPNER CAPITAL MANAGEMENT LP | History | Closed out | 0 | 0 | — | 1.08% | — | -208,600 | -100.0% | Q3 2025 | Feb 17, 2026 |
| Blackstone Inc. | History | Closed out | 0 | 0 | — | 0.01% | — | -200,000 | -100.0% | Q3 2025 | Nov 14, 2025 |
| Pembroke Management, LTD | History | Closed out | 0 | 0 | — | 0.14% | — | -93,785 | -100.0% | Q3 2025 | Oct 28, 2025 |
| Point72 Asset Management, L.P. | History | Closed out | 0 | 0 | — | 0.0% | — | -76,300 | -100.0% | Q3 2025 | Nov 14, 2025 |
| TUDOR INVESTMENT CORP ET AL | History | Closed out | 0 | 0 | — | 4.99% | — | -72,173 | -100.0% | Q3 2025 | Dec 09, 2025 |
| Allianz Asset Management GmbH | History | Closed out | 0 | 0 | — | 0.0% | — | -71,399 | -100.0% | Q3 2025 | Nov 04, 2025 |
| JANE STREET GROUP, LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -55,365 | -100.0% | Q3 2025 | Nov 14, 2025 |
| PICTON MAHONEY ASSET MANAGEMENT | History | Closed out | 0 | 0 | — | 0.01% | — | -52,349 | -100.0% | Q3 2025 | Nov 12, 2025 |
| Qube Research & Technologies Ltd | History | Closed out | 0 | 0 | — | 0.0% | — | -41,694 | -100.0% | Q3 2025 | Nov 14, 2025 |
| Limestone Investment Advisors LP | History | Closed out | 0 | 0 | — | 0.05% | — | -40,900 | -100.0% | Q3 2025 | Nov 13, 2025 |
| TD ASSET MANAGEMENT INC | History | Closed out | 0 | 0 | — | 0.0% | — | -40,072 | -100.0% | Q3 2025 | Nov 10, 2025 |
| FRANKLIN RESOURCES INC | History | Closed out | 0 | 0 | — | 0.0% | — | -35,908 | -100.0% | Q3 2025 | Nov 13, 2025 |
| 3G Capital Partners LP | History | Closed out | 0 | 0 | — | 0.12% | — | -35,000 | -100.0% | Q3 2025 | Nov 14, 2025 |
| Corient Private Wealth LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -30,000 | -100.0% | Q3 2025 | Nov 14, 2025 |
| Oribel Capital Management, LP | History | Closed out | 0 | 0 | — | 0.01% | — | -25,900 | -100.0% | Q3 2025 | Nov 13, 2025 |
| Graham Capital Management, L.P. | History | Closed out | 0 | 0 | — | 0.0% | — | -10,510 | -100.0% | Q3 2025 | Nov 14, 2025 |
| Aster Capital Management (DIFC) Ltd | History | Closed out | 0 | 0 | — | 0.0% | — | -477 | -100.0% | Q3 2025 | Nov 12, 2025 |
| PRINCIPAL SECURITIES, INC. | History | Closed out | 0 | 0 | — | 0.0% | — | -250 | -100.0% | Q3 2025 | Nov 12, 2025 |
| MAI Capital Management | History | New | 57 | 0 | — | — | — | +57 | New | Q4 2025 | Feb 13, 2026 |
| JONES FINANCIAL COMPANIES LLLP | History | New | 18 | 0 | — | — | — | +18 | New | Q4 2025 | Feb 17, 2026 |
| GAMMA Investing LLC | History | New | 9 | 0 | — | — | — | +9 | New | Q4 2025 | Jan 05, 2026 |
| Rakuten Securities, Inc. | History | No change | 1 | 0 | — | — | — | 0 | 0.0% | Q4 2025 | Jan 29, 2026 |