Skip to content
Disclosery

ARX ACCELERANT HOLDINGS

Follow

COMMON STOCK (common), issuer CIK 1997350

102 managers (107 13F filers) reported a position in ARX shares at 2026-03-31, 55,573,389 shares in all. 27 filers opened a position and 23 filers sold out during the quarter.

Managers
102
13F filers
107
New
27
Added
36
Reduced
23
Sold out
23
Shares held by filers
55,573,389

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

Each filer's latest stake. The shares are the aggregate the reporting persons state, which can include entities that file no 13F.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q1 2026

Filers in the available 13F reports with a share position at 2026-03-31, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
SECURITY BENEFIT LIFE INSURANCE CO /KS/in group SECURITY BENEFIT LIFE INSURAN…5,866,257$78.4M41.18%013F-HRTimelineGroup
Capital World Investors5,152,741$68.8M0.01%-614,89013F-HRTimeline
VANGUARD GROUP INCgroup of 5 filers holding4,137,996$55.3MnewTimeline
Keenan Capital, LLC3,992,923$53.3M11.26%+852,94313F-HRTimeline
GILDER GAGNON HOWE & CO LLC3,743,364$50M0.6%+40,28613F-HRTimeline
BARINGS LLCin group BARINGS LLC3,128,867$46.1M0.74%013F-HRTimelineGroup
ALLIANCEBERNSTEIN L.P.2,800,188$45.8M0.01%-46,28013F-HRTimeline
AMERICAN CENTURY COMPANIES INCin group AMERICAN CENTURY COMPANIES INC3,188,505$42.6M0.02%+1,660,05413F-HRTimelineGroup
MARSHALL WACE, LLPin group MARSHALL WACE, LLP2,274,152$30.4M0.03%+1,926,00513F-HRTimelineGroup
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO2,020,368$26.9M<0.01%+67,37213F-HR/ATimelineGroup
Azora Capital LP1,980,211$26.5M1.74%-458,88313F-HRTimeline
Cresset Asset Management, LLC1,839,620$24.6M0.11%new13F-HRTimeline
FMR LLCin group FMR LLC1,812,207$24.2M<0.01%+24,07213F-HRTimelineGroup
ArrowMark Colorado Holdings LLC1,548,224$20.7M0.55%-95,78913F-HRTimeline
BAMCO INC /NY/in group Baron Capital1,208,794$16.1M0.05%-32013F-HRTimelineGroup
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC1,144,206$15.3M0.01%+428,75413F-HRTimelineGroup
T. Rowe Price Investment Management, In…975,936$13M0.01%-15013F-HRTimeline
Qube Research & Technologies Ltd930,942$12.4M0.02%new13F-HRTimeline
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC860,697$11.5M0.01%new13F-HRTimelineGroup
UBS Group AGgroup of 2 filers holding768,327$10.3M+173,276Timeline
SUSQUEHANNA INTERNATIONAL GROUP, LLPin group SUSQUEHANNA INTERNATIONAL GRO…708,046$9.46M0.01%new13F-HRTimelineGroup
G2 Investment Partners Management LLC372,811$4.98M1.23%+279,47013F-HRTimeline
Woodline Partners LP367,157$4.91M0.02%+169,84513F-HR/ATimeline
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS305,244$4.08M<0.01%+269,46613F-HRTimelineGroup
MORGAN STANLEYin group MORGAN STANLEY287,175$3.84M<0.01%+178,94513F-HRTimelineGroup
RENAISSANCE TECHNOLOGIES LLC276,600$3.7M0.01%+203,90013F-HRTimeline
XTX Topco Ltdin group XTX Topco Ltd237,669$3.18M0.06%+131,42113F-HRTimelineGroup
Squarepoint Ops LLCin group Squarepoint Ops LLC212,791$2.84M0.01%+13,72113F-HRTimelineGroup
Owls Nest Partners IA, LLC209,707$2.8M0.98%new13F-HRTimeline
SEVEN GRAND MANAGERS, LLC200,000$2.67M0.18%013F-HRTimeline
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/180,186$2.41M<0.01%-155,55313F-HRTimelineGroup
Point72 Asset Management, L.P.in group Point72 Asset Management, L.P.166,692$2.23M<0.01%new13F-HRTimelineGroup
BlackRock, Inc.in group BlackRock, Inc.165,564$2.21M<0.01%-82,09213F-HRTimelineGroup
CANNELL CAPITAL LLC156,149$2.09M1.35%new13F-HRTimeline
Militia Capital Management LLCin group Militia Capital Management LLC150,000$2M0.45%13F-HR/ATimelineGroup
Trexquant Investment LP149,119$1.99M0.01%new13F-HRTimeline
Robertson Opportunity Capital, LLC135,012$1.8M0.69%new13F-HRTimeline
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC125,068$1.67M<0.01%-56,57913F-HRTimelineGroup
Schonfeld Strategic Advisors LLC113,795$1.52M0.01%+56,58413F-HRTimeline
Burkehill Global Management, LP100,000$1.34M0.07%013F-HRTimeline
Jain Global LLC86,418$1.15M0.01%+36,18413F-HRTimeline
Lighthouse Investment Partners, LLCin group Lighthouse Investment Partner…85,406$1.14M0.04%-113,44413F-HRTimelineGroup
BOOTHBAY FUND MANAGEMENT, LLC78,677$1.05M0.02%+52,67713F-HRTimeline
Swiss National Bank77,900$1.04M<0.01%013F-HRTimeline
TIGER GLOBAL MANAGEMENT LLC75,000$1M<0.01%013F-HRTimeline
SEI INVESTMENTS COin group SEI INVESTMENTS CO73,935$988K<0.01%+36,03313F-HRTimelineGroup
SummitTX Capital, L.P.62,999$842K0.03%+6,21913F-HRTimeline
Hudson Bay Capital Management LPin group Hudson Bay Capital Management…55,276$738K<0.01%+23,02613F-HRTimelineGroup
Brevan Howard Capital Management LPin group Brevan Howard Capital Managem…54,416$727K0.01%new13F-HRTimelineGroup
STATE OF WISCONSIN INVESTMENT BOARD53,463$714K<0.01%+28,19413F-HRTimeline
Interval Partners, LP49,534$662K0.02%-119,81413F-HRTimeline
BARCLAYS PLCin group BARCLAYS PLC46,693$624K<0.01%+36,31813F-HRTimelineGroup
Engineers Gate Manager LP44,016$588K0.01%new13F-HRTimeline
Jump Financial, LLCin group Jump Financial, LLC44,005$588K0.01%new13F-HRTimelineGroup
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC41,669$557K<0.01%-260,95713F-HRTimelineGroup
Grandeur Peak Global Advisors, LLC39,573$529K0.12%-1,581,44913F-HRTimeline
Jefferies Financial Group Inc.in group Jefferies Financial Group Inc.39,178$523K0.01%-5,80213F-HRTimelineGroup
Aquatic Capital Management LLC37,435$500K0.01%new13F-HRTimeline
STATE STREET CORPin group STATE STREET CORP37,306$498K<0.01%+3,75213F-HRTimelineGroup
Bank of New York Mellon Corpin group Bank of New York Mellon Corp36,556$488K<0.01%new13F-HRTimelineGroup
CALIFORNIA STATE TEACHERS RETIREMENT SY…34,972$467K<0.01%013F-HRTimeline
Catalyst Funds Management Pty Ltd34,900$466K0.08%new13F-HRTimeline
Zurcher Kantonalbank (Zurich Cantonalba…32,300$432K<0.01%013F-HRTimeline
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN28,850$385K<0.01%new13F-HR/ATimelineGroup
Quadrature Capital Ltdin group Quadrature Capital Ltd28,000$374K<0.01%+11,43713F-HRTimelineGroup
LANDSCAPE CAPITAL MANAGEMENT, L.L.C.in group LANDSCAPE CAPITAL MANAGEMENT,…26,768$358K0.02%+13,88013F-HRTimelineGroup
JANUS HENDERSON GROUP PLCin group Janus Henderson23,500$315K<0.01%013F-HR/ATimelineGroup
Centiva Capital, LP20,443$273K0.01%-107,16213F-HRTimeline
Legal & General Group Plcin group Legal & General Group Plc19,167$256K<0.01%-11,10413F-HRTimelineGroup
Entropy Technologies, LP17,909$239K0.01%new13F-HRTimeline
NORTHERN TRUST CORPin group NORTHERN TRUST CORP16,419$219K<0.01%+1,60013F-HRTimelineGroup
NATIXIS ADVISORS, LLCin group Natixis Investment Managers15,470$207K<0.01%-7,87713F-HRTimelineGroup
Man Group plcin group Man Group plc14,144$189K<0.01%new13F-HRTimelineGroup
WINTON GROUP Ltdin group WINTON GROUP Ltd13,800$184K0.01%new13F-HRTimelineGroup
JONES FINANCIAL COMPANIES LLLPin group JONES FINANCIAL COMPANIES LLLP14,118$184K<0.01%+14,10013F-HRTimelineGroup
Graham Capital Management, L.P.13,622$182K0.01%new13F-HRTimeline
LMR Partners LLPin group LMR Partners LLP11,672$156K<0.01%new13F-HRTimelineGroup
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…11,392$152K<0.01%+11,29913F-HRTimelineGroup
ARIZONA STATE RETIREMENT SYSTEM10,838$145K<0.01%-1713F-HRTimeline
MANUFACTURERS LIFE INSURANCE COMPANY, T…in group MANUFACTURERS LIFE INSURANCE …10,229$137K<0.01%new13F-HRTimelineGroup
Arcus Capital Partners, LLC10,100$135K0.05%new13F-HRTimeline
WESBANCO BANK INC10,000$134K<0.01%013F-HRTimeline
KLP KAPITALFORVALTNING AS8,500$114K<0.01%013F-HRTimeline
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA7,729$103K<0.01%+2,58513F-HRTimelineGroup
CWM, LLCin group CWM, LLC6,666$89.1K<0.01%013F-HRTimelineGroup
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…6,157$82.3K<0.01%+2,61113F-HRTimelineGroup
CITIGROUP INCin group CITIGROUP INC3,833$51.2K<0.01%-1,24713F-HRTimelineGroup
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.3,498$46.7K<0.01%+3,10013F-HRTimelineGroup
State of Wyoming2,075$27.7K<0.01%new13F-HRTimeline
Federation des caisses Desjardins du Qu…750$10K<0.01%new13F-HRTimeline
FIRST HORIZON CORP677$9.04K<0.01%+3213F-HRTimeline
Parallel Advisors, LLC666$8.9K<0.01%013F-HR/ATimeline
SIMPLEX TRADING, LLC558$7.45K<0.01%-1,00613F-HRTimeline
Rachor Investment Advisory Services, LLC209$2.79K<0.01%+7413F-HRTimeline
SJS Investment Consulting Inc.164$2.19K<0.01%new13F-HRTimeline
NATIONAL BANK OF CANADA /FI/in group NATIONAL BANK OF CANADA /FI/144$1.92K<0.01%013F-HRTimelineGroup
Caitong International Asset Management …143$1.91K<0.01%new13F-HRTimeline
Farther Finance Advisors, LLC124$1.6K<0.01%-3013F-HRTimeline
GAMMA Investing LLC69$922<0.01%+6013F-HRTimeline
MAI Capital Management27$361<0.01%-3013F-HRTimeline
SBI Securities Co., Ltd.21$281<0.01%-8013F-HRTimeline
Rakuten Securities, Inc.in group Rakuten Group, Inc.1$13<0.01%013F-HRTimelineGroup

Events

  • GLAZER CAPITAL, LLC and 1 other reporting person reported 5,969,101 ARX shares, 5% of the class, as of 2026-09-23, in a 13G filed 2026-09-30. 0001076809-26-000110

    Accepted , ingested