Accelerant Holdings (ARX) — Institutional Holders, Q2 2026
116 institutional investment managers reported a ARX position on SEC Form 13F-HR for the quarter ended June 30, 2026, with a combined reported value of $760.3M. Every filer is listed below, ranked by position value, 100 per page; this page shows ranks 1 to 100. Put and call option positions are excluded, and a firm filing several lots or share classes is shown once with its total.
ARX in Q2 2026: what funds did
Funds that filed a 13F for both Q1 2026 and Q2 2026, by what they did with the common stock. Share counts are adjusted for any split between the two quarters; dollar figures are the change in shares at this quarter’s price.
Biggest buyers
- FMRAdded · +3,816,472 sh+$44.7M
- BlackRockAdded · +3,330,709 sh+$39.0M
- GOLDMAN SACHS GROUPAdded · +1,971,913 sh+$23.1M
- Azora CapitalAdded · +1,069,635 sh+$12.5M
- Owls Nest Partners IAAdded · +1,042,177 sh+$12.2M
Biggest sellers
- ALLIANCEBERNSTEIN L.P.Trimmed · -1,353,035 sh-$15.9M
- BAMCOSold out · -1,208,794 sh-$14.2M
- MARSHALL WACE, LLPTrimmed · -1,164,477 sh-$13.6M
- ArrowMark ColoradoTrimmed · -1,071,016 sh-$12.6M
- T. Rowe Price Investment ManagementSold out · -975,936 sh-$11.4M
ARX 13F holders ranked 1–100 of 116
| # | Institution | Shares | Value | % of portfolio | QoQShares vs Q1 2026 |
|---|---|---|---|---|---|
| 1 | SECURITY BENEFIT LIFE INSURANCE#1 · 5,866,257 sh | 5,866,257 | $68.8M | 37.88% | 0.0% |
| 2 | FMR#2 · 5,628,679 sh | 5,628,679 | $66.0M | <0.01% | +210.6% |
| 3 | Capital World Investors#3 · 4,626,664 sh | 4,626,664 | $54.2M | <0.01% | -10.2% |
| 4 | Keenan Capital#4 · 3,992,923 sh | 3,992,923 | $46.8M | 9.25% | 0.0% |
| 5 | AMERICAN CENTURY COMPANIES#5 · 3,877,619 sh | 3,877,619 | $45.4M | 0.02% | +21.6% |
| 6 | GILDER GAGNON HOWE#6 · 3,732,024 sh | 3,732,024 | $43.7M | 0.45% | -0.3% |
| 7 | BlackRock#7 · 3,496,273 sh | 3,496,273 | $41.0M | <0.01% | +2011.7% |
| 8 | BARINGS#8 · 3,128,867 sh | 3,128,867 | $37.6M | — | 0.0% |
| 9 | Azora Capital#9 · 3,049,846 sh | 3,049,846 | $35.7M | 1.51% | +54.0% |
| 10 | VANGUARD PORTFOLIO MANAGEMENT#10 · 2,418,330 sh | 2,418,330 | $28.3M | <0.01% | +14.4% |
| 11 | JPMORGAN CHASE#11 · 2,176,807 sh | 2,176,807 | $27.5M | <0.01% | +7.7% |
| 12 | GOLDMAN SACHS GROUP#12 · 2,013,582 sh | 2,013,582 | $23.6M | <0.01% | +4732.3% |
| 13 | Cresset Asset Management#13 · 1,839,620 sh | 1,839,620 | $21.6M | 0.08% | 0.0% |
| 14 | CITADEL ADVISORS#14 · 1,747,985 sh | 1,747,985 | $20.5M | <0.01% | +52.8% |
| 15 | VANGUARD CAPITAL MANAGEMENT#15 · 1,657,197 sh | 1,657,197 | $19.4M | <0.01% | -14.5% |
| 16 | ALLIANCEBERNSTEIN L.P.#16 · 1,447,153 sh | 1,447,153 | $19.3M | <0.01% | -48.3% |
| 17 | Owls Nest Partners IA#17 · 1,251,884 sh | 1,251,884 | $14.7M | 4.76% | +497.0% |
| 18 | MARSHALL WACE, LLP#18 · 1,109,675 sh | 1,109,675 | $13.0M | 0.01% | -51.2% |
| 19 | JANE STREET GROUP#19 · 952,066 sh | 952,066 | $11.2M | <0.01% | +10.6% |
| 20 | STATE STREET#20 · 900,775 sh | 900,775 | $10.6M | <0.01% | +2314.6% |
| 21 | GEODE CAPITAL MANAGEMENT#21 · 809,620 sh | 809,620 | $9.5M | <0.01% | New |
| 22 | G2 Investment Partners Management#22 · 640,000 sh | 640,000 | $7.5M | 1.37% | +71.7% |
| 23 | BANK OF AMERICA#23 · 603,858 sh | 603,858 | $7.1M | <0.01% | +235.1% |
| 24 | UBS Group AG#24 · 554,448 sh | 554,448 | $6.5M | <0.01% | -19.1% |
| 25 | Walleye Capital#25 · 541,257 sh | 541,257 | $6.3M | 0.02% | New |
| 26 | Lighthouse Investment Partners#26 · 488,152 sh | 488,152 | $5.7M | 0.16% | +471.6% |
| 27 | ArrowMark Colorado#27 · 477,208 sh | 477,208 | $5.6M | 0.23% | -69.2% |
| 28 | PANAGORA ASSET MANAGEMENT#28 · 408,931 sh | 408,931 | $4.8M | 0.01% | New |
| 29 | BNP PARIBAS FINANCIAL MARKETS#29 · 372,813 sh | 372,813 | $4.4M | <0.01% | +22.1% |
| 30 | NORTHERN#30 · 369,625 sh | 369,625 | $4.3M | <0.01% | +2151.2% |
| 31 | XTX Topco Ltd#31 · 322,417 sh | 322,417 | $3.8M | 0.05% | +35.7% |
| 32 | Holocene Advisors#32 · 300,000 sh | 300,000 | $3.5M | <0.01% | New |
| 33 | RENAISSANCE TECHNOLOGIES#33 · 296,100 sh | 296,100 | $3.5M | <0.01% | +7.0% |
| 34 | MORGAN STANLEY#34 · 279,971 sh | 279,971 | $3.3M | <0.01% | -2.5% |
| 35 | Qube Research & Technologies Ltd#35 · 239,317 sh | 239,317 | $2.8M | <0.01% | -74.3% |
| 36 | CANNELL CAPITAL#36 · 171,080 sh | 171,080 | $2.0M | 1.34% | +9.6% |
| 37 | Bank of New York Mellon#37 · 170,679 sh | 170,679 | $2.0M | <0.01% | +366.9% |
| 38 | CHARLES SCHWAB INVESTMENT MANAGEMENT#38 · 148,881 sh | 148,881 | $1.7M | <0.01% | New |
| 39 | BOOTHBAY FUND MANAGEMENT#39 · 138,295 sh | 138,295 | $1.6M | 0.02% | +75.8% |
| 40 | Nuveen#40 · 134,777 sh | 134,777 | $1.6M | <0.01% | New |
| 41 | Swiss National Bank#41 · 117,100 sh | 117,100 | $1.4M | <0.01% | +50.3% |
| 42 | Burkehill Global Management#42 · 100,000 sh | 100,000 | $1.2M | 0.04% | 0.0% |
| 43 | GSA CAPITAL PARTNERS LLP#43 · 98,911 sh | 98,911 | $1.2M | 0.07% | New |
| 44 | Engineers Gate Manager#44 · 98,354 sh | 98,354 | $1.2M | 0.01% | +123.5% |
| 45 | VANGUARD FIDUCIARY#45 · 92,404 sh | 92,404 | $1.1M | <0.01% | +92.7% |
| 46 | WELLS FARGO & COMPANY#46 · 85,940 sh | 85,940 | $1.0M | <0.01% | +197.9% |
| 47 | Militia Capital Management#47 · 80,000 sh | 80,000 | $937.6K | 0.03% | -46.7% |
| 48 | TIGER GLOBAL MANAGEMENT#48 · 75,000 sh | 75,000 | $879.0K | <0.01% | 0.0% |
| 49 | RHUMBLINE ADVISERS#49 · 69,883 sh | 69,883 | $819.0K | <0.01% | New |
| 50 | SUSQUEHANNA INTERNATIONAL GROUP, LLP#50 · 69,019 sh | 69,019 | $808.9K | <0.01% | -90.3% |
| 51 | SEI INVESTMENTS#51 · 65,141 sh | 65,141 | $763.5K | <0.01% | -11.9% |
| 52 | Woodline Partners#52 · 57,554 sh | 57,554 | $674.5K | <0.01% | -84.3% |
| 53 | SummitTX Capital, L.P.#53 · 56,584 sh | 56,584 | $663.2K | 0.02% | -10.2% |
| 54 | STATE OF WISCONSIN INVESTMENT BOARD#54 · 52,843 sh | 52,843 | $619.3K | <0.01% | -1.2% |
| 55 | PRICE T ROWE ASSOCIATES#55 · 50,853 sh | 50,853 | $596.0K | <0.01% | New |
| 56 | VANGUARD ASSET MANAGEMENT, Ltd#56 · 41,471 sh | 41,471 | $486.0K | <0.01% | +54.4% |
| 57 | Jackson Creek Investment Advisors#57 · 40,161 sh | 40,161 | $477.0K | 0.16% | New |
| 58 | Squarepoint Ops#58 · 40,428 sh | 40,428 | $473.8K | <0.01% | -81.0% |
| 59 | Legal & General Group Plc#59 · 37,826 sh | 37,826 | $443.3K | <0.01% | +97.3% |
| 60 | MetLife Investment Management#60 · 36,306 sh | 36,306 | $425.5K | <0.01% | New |
| 61 | Invesco Ltd.#61 · 33,735 sh | 33,735 | $395.4K | 0.00% | New |
| 62 | CITIGROUP#62 · 33,581 sh | 33,581 | $393.6K | <0.01% | +776.1% |
| 63 | FORMULA GROWTH LTD#63 · 31,000 sh | 31,000 | $363.3K | 0.13% | New |
| 64 | JONES FINANCIAL COMPANIES LLLP#64 · 25,329 sh | 25,329 | $348.0K | <0.01% | +79.4% |
| 65 | MANUFACTURERS LIFE INSURANCE COMPANY, THE#65 · 28,594 sh | 28,594 | $335.1K | <0.01% | +179.5% |
| 66 | MIRAE ASSET GLOBAL ETFS Ltd.#66 · 28,023 sh | 28,023 | $328.4K | <0.01% | New |
| 67 | NATIXIS ADVISORS#67 · 25,313 sh | 25,313 | $296.0K | <0.01% | +63.6% |
| 68 | Diversified#68 · 24,086 sh | 24,086 | $282.3K | <0.01% | New |
| 69 | Jupiter Topco#69 · 23,500 sh | 23,500 | $275.5K | <0.01% | — |
| 70 | Yorktown Management & Research#70 · 22,800 sh | 22,800 | $267.2K | 0.16% | New |
| 71 | WINTON GROUP Ltd#71 · 22,000 sh | 22,000 | $257.8K | <0.01% | +59.4% |
| 72 | NEW YORK STATE COMMON RETIREMENT FUND#72 · 21,400 sh | 21,400 | $250.8K | <0.01% | New |
| 73 | BARCLAYS PLC#73 · 20,631 sh | 20,631 | $241.8K | 0.00% | -55.8% |
| 74 | Graham Capital Management, L.P.#74 · 20,001 sh | 20,001 | $234.4K | <0.01% | +46.8% |
| 75 | Police & Firemen's Retirement System of New Jersey#75 · 18,025 sh | 18,025 | $211.3K | <0.01% | New |
| 76 | MILLENNIUM MANAGEMENT#76 · 17,491 sh | 17,491 | $205.0K | <0.01% | -86.0% |
| 77 | Quadrature Capital Ltd#77 · 16,341 sh | 16,341 | $191.5K | <0.01% | -41.6% |
| 78 | Arizona State Retirement System#78 · 16,108 sh | 16,108 | $188.8K | <0.01% | +48.6% |
| 79 | Zurcher Kantonalbank (Zurich Cantonalbank)#79 · 13,300 sh | 13,300 | $155.9K | <0.01% | -58.8% |
| 80 | KLP KAPITALFORVALTNING AS#80 · 13,200 sh | 13,200 | $154.7K | <0.01% | +55.3% |
| 81 | Entropy Technologies#81 · 12,954 sh | 12,954 | $151.8K | <0.01% | -27.7% |
| 82 | Virtu Financial#82 · 12,726 sh | 12,726 | $149.0K | <0.01% | New |
| 83 | BNP Paribas Asset Management Holding S.A.#83 · 12,633 sh | 12,633 | $148.1K | <0.01% | New |
| 84 | VOYA INVESTMENT MANAGEMENT#84 · 12,297 sh | 12,297 | $144.1K | <0.01% | New |
| 85 | LOS ANGELES CAPITAL MANAGEMENT#85 · 12,245 sh | 12,245 | $143.5K | <0.01% | New |
| 86 | SG Americas Securities#86 · 12,084 sh | 12,084 | $142.0K | <0.01% | New |
| 87 | Magnetar Financial#87 · 11,936 sh | 11,936 | $139.9K | <0.01% | New |
| 88 | RAYMOND JAMES FINANCIAL#88 · 11,600 sh | 11,600 | $136.0K | 0.00% | New |
| 89 | ARROWSTREET CAPITAL, LIMITED PARTNERSHIP#89 · 11,512 sh | 11,512 | $134.9K | <0.01% | New |
| 90 | INTECH INVESTMENT MANAGEMENT#90 · 11,390 sh | 11,390 | $133.5K | <0.01% | New |
| 91 | TWO SIGMA INVESTMENTS#91 · 11,079 sh | 11,079 | $129.8K | <0.01% | New |
| 92 | State of Wyoming#92 · 10,943 sh | 10,943 | $128.3K | 0.01% | +427.4% |
| 93 | Vanguard Investments Australia, Ltd.#93 · 10,677 sh | 10,677 | $125.1K | <0.01% | 0.0% |
| 94 | ROYAL BANK OF CANADA#94 · 10,214 sh | 10,214 | $120.0K | 0.00% | +32.2% |
| 95 | Pictet Asset Management Holding SA#95 · 10,163 sh | 10,163 | $119.1K | <0.01% | New |
| 96 | PRUDENTIAL FINANCIAL#96 · 10,070 sh | 10,070 | $118.0K | <0.01% | New |
| 97 | Caitong International Asset Management , Ltd#97 · 6,873 sh | 6,873 | $80.6K | 0.01% | +4706.3% |
| 98 | Ameritas Investment Partners#98 · 5,547 sh | 5,547 | $65.0K | <0.01% | New |
| 99 | PNC FINANCIAL SERVICES GROUP#99 · 5,411 sh | 5,411 | $63.4K | 0.00% | -12.1% |
| 100 | Russell Investments Group, Ltd.#100 · 4,889 sh | 4,889 | $57.3K | <0.01% | New |
Funds that sold out of ARX in Q2 2026 (26)
Held ARX at the end of Q1 2026 and filed a Q2 2026 13F without it. Not in the list above, because they no longer hold it. Largest prior position first.
| Institution | Shares sold | Value in Q1 2026 |
|---|---|---|
| BAMCO1,208,794 sh | 1,208,794 | $16.1M |
| T. Rowe Price Investment Management975,936 sh | 975,936 | $13.0M |
| SEVEN GRAND MANAGERS200,000 sh | 200,000 | $2.7M |
| Point72 Asset Management, L.P.166,692 sh | 166,692 | $2.2M |
| Trexquant Investment149,119 sh | 149,119 | $2.0M |
| Robertson Opportunity Capital135,012 sh | 135,012 | $1.8M |
| Schonfeld Strategic Advisors113,795 sh | 113,795 | $1.5M |
| Jain Global86,418 sh | 86,418 | $1.2M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AME82,680 sh | 82,680 | $1.1M |
| Hudson Bay Capital Management55,276 sh | 55,276 | $738.5K |
| Brevan Howard Capital Management54,416 sh | 54,416 | $727.0K |
| Interval Partners49,534 sh | 49,534 | $661.8K |
| Jump Financial44,005 sh | 44,005 | $587.9K |
| Grandeur Peak Global Advisors39,573 sh | 39,573 | $528.7K |
| LEUCADIA NATIONAL39,178 sh | 39,178 | $523.4K |
| Aquatic Capital Management37,435 sh | 37,435 | $500.1K |
| Catalyst Funds Management Pty Ltd34,900 sh | 34,900 | $466.3K |
| LANDSCAPE CAPITAL MANAGEMENT, L.L.C.26,768 sh | 26,768 | $357.6K |
| Centiva Capital20,443 sh | 20,443 | $273.1K |
| Man Group plc14,144 sh | 14,144 | $189.0K |
| LMR Partners LLP11,672 sh | 11,672 | $155.9K |
| Arcus Capital Partners10,100 sh | 10,100 | $134.9K |
| WESBANCO BANK10,000 sh | 10,000 | $133.6K |
| Rachor Investment Advisory Services209 sh | 209 | $2.8K |
| SJS Investment Consulting164 sh | 164 | $2.2K |
| MAI Capital Management27 sh | 27 | $361.00 |
Source: Form 13F-HR filings on SEC EDGAR, Q2 2026. Values are as reported by each manager at quarter end. “% of portfolio” is the position’s share of the manager’s total reported 13F value for the same quarter. “New” means the manager filed a 13F for Q1 2026 without this position; a dash means no comparison is available. Where a manager’s own filing is internally inconsistent its value is withheld and it is listed last. 13F data shows reported holdings, not recommendations.