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Accelerant Holdings

ARX
Exchange
NYSE
Industry
Insurance Agents, Brokers & Service
SEC CIK
0001997350

In the last 90 days, Accelerant Holdings insiders filed 0 open-market purchases and 12 sales; 116 institutions reported holding it in 13F filings for Q2 2026, worth $761.1M in total; Tiger Global Management is the only superinvestor holding it.

13F holders, Q1 2026

Institutional positions in Accelerant Holdings as of Mar 31, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
107
+11 vs. Q4 2025
Shares held
55.6M
+8.40M (+17.8%) vs. Q4 2025
Total value
$755.0M
−$7.03M (−0.9%) vs. Q4 2025
New holders
33
36 more added
Sold out
22
23 more reduced

2 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 2025: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting ARX on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ1 2026: 107 institutions
Q1 2021: 0 institutionsQ2 2021: 0 institutionsQ3 2021: 0 institutionsQ4 2021: 0 institutionsQ1 2022: 0 institutionsQ2 2022: 0 institutionsQ3 2022: 0 institutionsQ4 2022: 0 institutionsQ1 2023: 0 institutionsQ2 2023: 0 institutionsQ3 2023: 0 institutionsQ4 2023: 0 institutionsQ1 2024: 0 institutionsQ2 2024: 0 institutionsQ3 2024: 0 institutionsQ4 2024: 0 institutionsQ1 2025: 0 institutionsQ2 2025: 0 institutionsQ3 2025: 88 institutionsQ4 2025: 98 institutionsQ1 2026: 107 institutionsQ2 2026: 116 institutions
Value heldQ1 2026: $755.0M
Q1 2021: $0Q2 2021: $0Q3 2021: $0Q4 2021: $0Q1 2022: $0Q2 2022: $0Q3 2022: $0Q4 2022: $0Q1 2023: $0Q2 2023: $0Q3 2023: $0Q4 2023: $0Q1 2024: $0Q2 2024: $0Q3 2024: $0Q4 2024: $0Q1 2025: $0Q2 2025: $0Q3 2025: $728.0MQ4 2025: $809.4MQ1 2026: $755.0MQ2 2026: $761.1M
Institutions holding ARX and their total value by quarter
QuarterHoldersValue
Q2 2026116$761.1M
Q1 2026107$755.0M
Q4 202598$809.4M
Q3 202588$728.0M
Q2 20250$0
Q1 20250$0
Q4 20240$0
Q3 20240$0
Q2 20240$0
Q1 20240$0
Q4 20230$0
Q3 20230$0
Q2 20230$0
Q1 20230$0
Q4 20220$0
Q3 20220$0
Q2 20220$0
Q1 20220$0
Q4 20210$0
Q3 20210$0
Q2 20210$0
Q1 20210$0

Institutions, Q1 2026

Shares, value and share of portfolio for each institution holding Accelerant Holdings; share changes are against Q4 2025.

Institutions holding ARX in Q1 2026
InstitutionSharesValue% of portfolioChange in sharesAction
Rakuten Securities, Inc.1$130.00%00.0%Unchanged
SBI Securities Co., Ltd.21$2810.00%−80−79.2%Reduced
MAI Capital Management27$3610.00%−30−52.6%Reduced
GAMMA Investing LLC69$9220.00%+60+666.7%Added
Farther Finance Advisors, LLC124$1.60K0.00%−30−19.5%Reduced
Caitong International Asset Management Co., Ltd143$1.91K0.00%+143New
National Bank of Canada144$1.92K0.00%00.0%Unchanged
SJS Investment Consulting Inc.164$2.19K0.00%+164New
Rachor Investment Advisory Services, LLC209$2.79K0.00%+74+54.8%Added
Simplex Trading, LLC558$7.45K0.00%−1,006−64.3%Reduced
Parallel Advisors, LLC666$8.90K0.00%00.0%Unchanged
First Horizon Corp677$9.04K0.00%+32+5.0%Added
Federation des caisses Desjardins du Quebec750$10.0K0.00%+750New
State of Wyoming2,075$27.7K0.00%+2,075New
Advisor Group Holdings, Inc.3,498$46.7K0.00%+3,100+778.9%Added
Citigroup Inc3,833$51.2K0.00%−1,247−24.5%Reduced
The PNC Financial Services Group, Inc.6,157$82.3K0.00%+2,611+73.6%Added
CWM, LLC6,666$89.1K0.00%00.0%Unchanged
Royal Bank of Canada7,729$103.0K0.00%+2,585+50.3%Added
KLP Kapitalforvaltning AS8,500$113.6K0.00%00.0%Unchanged
Wesbanco Bank Inc10,000$133.6K0.00%00.0%Unchanged
Arcus Capital Partners, LLC10,100$134.9K0.05%+10,100New
Manufacturers Life Insurance Company, The10,229$136.7K0.00%+10,229New
Vanguard Investments Australia, Ltd.10,677$142.6K0.00%+10,677New
Arizona State Retirement System10,838$144.8K0.00%−17−0.2%Reduced
Tower Research Capital LLC (TRC)11,392$152.2K0.00%+11,299+12,149.5%Added
LMR Partners LLP11,672$155.9K0.00%+11,672New
Graham Capital Management, L.P.13,622$182.0K0.01%+13,622New
Jones Financial Companies LLLP14,118$183.7K0.00%+14,100+78,333.3%Added
Winton Group Ltd13,800$184.4K0.01%+13,800New
Man Group plc14,144$189.0K0.00%+14,144New
Natixis Advisors, L.P.15,470$207.0K0.00%−7,877−33.7%Reduced
Northern Trust Corp16,419$219.4K0.00%+1,600+10.8%Added
Entropy Technologies, LP17,909$239.3K0.01%+17,909New
Legal & General Group Plc19,167$256.1K0.00%−11,104−36.7%Reduced
Centiva Capital, LP20,443$273.1K0.01%−107,162−84.0%Reduced
Janus Henderson Group PLC23,500$314.5K0.00%00.0%Unchanged
Landscape Capital Management, L.L.C.26,768$357.6K0.02%+13,880+107.7%Added
Vanguard Asset Management, Ltd26,856$358.8K0.00%+26,856New
Quadrature Capital Ltd28,000$374.1K0.00%+11,437+69.1%Added
Wells Fargo & Company28,850$385.4K0.00%+28,850New
Zurcher Kantonalbank (Zurich Cantonalbank)32,300$431.5K0.00%00.0%Unchanged
Catalyst Funds Management Pty Ltd34,900$466.3K0.08%+34,900New
California State Teachers Retirement System34,972$467.2K0.00%00.0%Unchanged
Bank of New York Mellon Corp36,556$488.4K0.00%+36,556New
State Street Corp37,306$498.4K0.00%+3,752+11.2%Added
Aquatic Capital Management LLC37,435$500.1K0.01%+37,435New
Jefferies Financial Group Inc.39,178$523.4K0.01%−5,802−12.9%Reduced
Grandeur Peak Global Advisors, LLC39,573$528.7K0.12%−1,581,449−97.6%Reduced
Goldman Sachs Group Inc41,669$556.7K0.00%−260,957−86.2%Reduced
Jump Financial, LLC44,005$587.9K0.01%+44,005New
Engineers Gate Manager LP44,016$588.1K0.01%+44,016New
Barclays PLC46,693$623.8K0.00%+36,318+350.1%Added
Vanguard Fiduciary Trust Co47,960$640.7K0.00%+47,960New
Interval Partners, LP49,534$661.8K0.02%−119,814−70.8%Reduced
State of Wisconsin Investment Board53,463$714.3K0.00%+28,194+111.6%Added
Brevan Howard Capital Management LP54,416$727.0K0.01%+54,416New
Hudson Bay Capital Management LP55,276$738.5K0.00%+23,026+71.4%Added
SummitTX Capital, L.P.62,999$841.7K0.03%+6,219+11.0%Added
SEI Investments Co73,935$987.8K0.00%+36,033+95.1%Added
Tiger Global Management LLCSuperinvestorTiger Global Management75,000$1.00M0.00%00.0%Unchanged
Swiss National Bank77,900$1.04M0.00%00.0%Unchanged
Boothbay Fund Management, LLC78,677$1.05M0.02%+52,677+202.6%Added
UBS Asset Management Americas Inc82,680$1.10M0.00%+23,266+39.2%Added
Lighthouse Investment Partners, LLC85,406$1.14M0.04%−113,444−57.1%Reduced
Jain Global LLC86,418$1.15M0.01%+36,184+72.0%Added
Burkehill Global Management, LP100,000$1.34M0.07%00.0%Unchanged
Schonfeld Strategic Advisors LLC113,795$1.52M0.01%+56,584+98.9%Added
Millennium Management LLC125,068$1.67M0.00%−56,579−31.1%Reduced
Robertson Opportunity Capital, LLC135,012$1.80M0.69%+135,012New
Trexquant Investment LP149,119$1.99M0.01%+149,119New
Militia Capital Management LLC150,000$2.00M0.45%+150,000New
Cannell Capital LLC156,149$2.09M1.35%+156,149New
BlackRock, Inc.165,564$2.21M0.00%−82,092−33.1%Reduced
Point72 Asset Management, L.P.166,692$2.23M0.00%+166,692New
Bank of America Corp180,186$2.41M0.00%−155,553−46.3%Reduced
Seven Grand Managers, LLC200,000$2.67M0.18%00.0%Unchanged
Owls Nest Partners IA, LLC209,707$2.80M0.98%+209,707New
Squarepoint Ops LLC212,791$2.84M0.01%+13,721+6.9%Added
XTX Topco Ltd237,669$3.18M0.06%+131,421+123.7%Added
Renaissance Technologies LLC276,600$3.70M0.01%+203,900+280.5%Added
Morgan Stanley287,175$3.84M0.00%+178,945+165.3%Added
BNP Paribas Arbitrage, SA305,244$4.08M0.00%+269,466+753.2%Added
Woodline Partners LP367,157$4.91M0.02%+169,845+86.1%Added
G2 Investment Partners Management LLC372,811$4.98M1.23%+279,470+299.4%Added
UBS Group AG685,647$9.16M0.00%+150,010+28.0%Added
Susquehanna International Group, LLP708,046$9.46M0.01%+708,046New
Jane Street Group, LLC860,697$11.5M0.01%+860,697New
Qube Research & Technologies Ltd930,942$12.4M0.02%+930,942New
T. Rowe Price Investment Management, Inc.975,936$13.0M0.01%−1500.0%Reduced
Citadel Advisors LLC1,144,206$15.3M0.01%+428,754+59.9%Added
Bamco Inc1,208,794$16.1M0.05%−3200.0%Reduced
ArrowMark Colorado Holdings LLC1,548,224$20.7M0.55%−95,789−5.8%Reduced
FMR LLC1,812,207$24.2M0.00%+24,072+1.3%Added
Cresset Asset Management, LLC1,839,620$24.6M0.11%+1,839,620New
Vanguard Capital Management LLC1,938,938$25.9M0.00%+1,938,938New
Azora Capital LP1,980,211$26.5M1.74%−458,883−18.8%Reduced
JPMorgan Chase & Co2,020,368$26.9M0.00%+67,372+3.4%Added
Vanguard Portfolio Management LLC2,113,565$28.2M0.00%+2,113,565New
Marshall Wace, LLP2,274,152$30.4M0.03%+1,926,005+553.2%Added