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Disclosery

ARX ACCELERANT HOLDINGS

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COMMON STOCK (common), issuer CIK 1997350

88 managers (88 13F filers) reported a position in ARX shares at 2025-09-30, 49,247,099 shares in all. 87 filers opened a position and 0 filers sold out during the quarter.

Managers
88
13F filers
88
New
87
Added
0
Reduced
0
Sold out
0
Shares held by filers
49,247,099

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, Q3 2025

Filers in the available 13F reports with a share position at 2025-09-30, 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
Capital World Investors5,753,250$85.7M0.01%new13F-HRTimeline
SECURITY BENEFIT LIFE INSURANCE CO /KS/in group SECURITY BENEFIT LIFE INSURAN…5,866,257$80.8M32.51%new13F-HRTimelineGroup
GILDER GAGNON HOWE & CO LLC3,898,272$58M0.59%new13F-HRTimeline
BARINGS LLCin group BARINGS LLC3,128,867$46.4M0.88%new13F-HRTimelineGroup
ALLIANCEBERNSTEIN L.P.2,789,084$41.5M0.01%new13F-HRTimeline
T. Rowe Price Investment Management, In…2,355,801$35.1M0.02%new13F-HRTimeline
BlackRock, Inc.in group BlackRock, Inc.2,306,701$34.3M<0.01%new13F-HRTimelineGroup
VANGUARD GROUP INCin group VANGUARD GROUP INC2,248,607$33.5M<0.01%new13F-HRTimelineGroup
Balyasny Asset Management L.P.in group Balyasny Asset Management2,018,784$30.1M0.06%new13F-HRTimelineGroup
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO1,610,863$24M<0.01%new13F-HR/ATimelineGroup
BAMCO INC /NY/in group Baron Capital1,218,309$18.1M0.05%new13F-HRTimelineGroup
ArrowMark Colorado Holdings LLC1,031,604$15.4M0.29%new13F-HRTimeline
Driehaus Capital Management LLC1,011,940$15.1M0.11%new13F-HRTimeline
Grandeur Peak Global Advisors, LLC945,929$14.1M1.89%new13F-HRTimeline
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC922,087$13.7M0.01%new13F-HRTimelineGroup
AMERICAN CENTURY COMPANIES INCin group AMERICAN CENTURY COMPANIES INC912,825$13.6M0.01%new13F-HRTimelineGroup
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC872,080$13M0.01%new13F-HRTimelineGroup
NEUBERGER BERMAN GROUP LLCin group NEUBERGER BERMAN GROUP LLC746,117$11.1M0.01%new13F-HRTimelineGroup
Azora Capital LP627,118$9.34M0.43%new13F-HRTimeline
FMR LLCin group FMR LLC558,645$8.32M<0.01%new13F-HRTimelineGroup
JANUS HENDERSON GROUP PLCin group Janus Henderson543,284$8.09M<0.01%new13F-HRTimelineGroup
Journey Advisory Group, LLC432,526$7.89M0.58%new13F-HRTimeline
FRED ALGER MANAGEMENT, LLCin group FRED ALGER MANAGEMENT, LLC520,915$7.76M0.03%new13F-HRTimelineGroup
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/510,380$7.6M<0.01%new13F-HR/ATimelineGroup
Ghisallo Capital Management LLC425,000$6.33M0.21%new13F-HRTimeline
CenterBook Partners LP382,645$5.7M0.28%new13F-HRTimeline
Dragoneer Investment Group, LLC336,361$5.01M0.11%new13F-HRTimeline
Walleye Capital LLCin group Walleye Capital LLC299,800$4.46M0.04%new13F-HRTimelineGroup
Verition Fund Management LLC272,240$4.05M0.02%new13F-HRTimeline
LMR Partners LLPin group LMR Partners LLP260,000$3.87M0.05%new13F-HRTimelineGroup
Squarepoint Ops LLCin group Squarepoint Ops LLC229,895$3.42M0.01%new13F-HRTimelineGroup
SOROS FUND MANAGEMENT LLCin group SOROS FUND MANAGEMENT LLC225,000$3.35M0.05%new13F-HRTimelineGroup
Interval Partners, LP217,010$3.23M0.07%new13F-HRTimeline
Davidson Kempner Capital Management LP208,600$3.11M0.04%new13F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
Blackstone Inc.in group Blackstone Inc.200,000$2.98M0.01%new13F-HRTimelineGroupThe filing omitted confidential holdings, a later amendment may add them.
SEVEN GRAND MANAGERS, LLC200,000$2.98M0.24%new13F-HRTimeline
Jain Global LLC200,000$2.98M0.04%new13F-HRTimeline
TEACHER RETIREMENT SYSTEM OF TEXAS175,000$2.61M0.01%new13F-HRTimeline
Lighthouse Investment Partners, LLCin group Lighthouse Investment Partner…172,311$2.57M0.09%new13F-HRTimelineGroup
Schonfeld Strategic Advisors LLC156,662$2.33M0.02%new13F-HRTimeline
D. E. Shaw & Co., Inc.in group D. E. Shaw & Co., Inc.156,471$2.33M<0.01%new13F-HRTimelineGroup
Centiva Capital, LP151,033$2.25M0.21%new13F-HRTimeline
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA150,700$2.24M<0.01%new13F-HRTimelineGroup
HEALTHCARE OF ONTARIO PENSION PLAN TRUS…150,000$2.23M<0.01%new13F-HRTimeline
Woodline Partners LP145,413$2.17M0.01%new13F-HRTimeline
UBS Group AGin group UBS Group AG124,025$1.85M<0.01%new13F-HRTimelineGroup
MARSHALL WACE, LLPin group MARSHALL WACE, LLP105,215$1.57M<0.01%new13F-HRTimelineGroup
Burkehill Global Management, LP100,000$1.49M0.08%new13F-HRTimeline
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC94,347$1.4M<0.01%new13F-HRTimelineGroup
Pembroke Management, LTD93,785$1.4M0.14%new13F-HRTimeline
MORGAN STANLEYin group MORGAN STANLEY90,099$1.34M<0.01%new13F-HR/ATimelineGroup
Hudson Bay Capital Management LPin group Hudson Bay Capital Management…84,298$1.26M0.01%new13F-HR/ATimelineGroup
Point72 Asset Management, L.P.in group Point72 Asset Management, L.P.76,300$1.14M<0.01%new13F-HRTimelineGroup
TIGER GLOBAL MANAGEMENT LLC75,000$1.12M<0.01%new13F-HRTimeline
TUDOR INVESTMENT CORP ET AL72,173$1.07M0.01%new13F-HR/ATimeline
Allianz Asset Management GmbHin group Allianz SE71,399$1.06M<0.01%new13F-HRTimelineGroup
Quadrature Capital Ltdin group Quadrature Capital Ltd70,759$1.05M0.01%new13F-HRTimelineGroup
Cubist Systematic Strategies, LLC66,391$989K0.01%new13F-HRTimeline
XTX Topco Ltdin group XTX Topco Ltd63,865$951K0.05%new13F-HRTimelineGroup
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC55,365$824K<0.01%new13F-HRTimelineGroup
PICTON MAHONEY ASSET MANAGEMENT52,349$780K0.01%new13F-HRTimeline
Qube Research & Technologies Ltd41,694$621K<0.01%new13F-HRTimeline
Limestone Investment Advisors LP40,900$609K0.27%new13F-HRTimeline
TD Asset Management Inc40,072$597K<0.01%new13F-HRTimeline
FRANKLIN RESOURCES INCin group Franklin Resources35,908$535K<0.01%new13F-HRTimelineGroup
3G Capital Partners LP35,000$521K0.12%new13F-HRTimeline
SummitTX Capital, L.P.31,920$475K0.02%new13F-HRTimeline
Corient Private Wealth LPin group Corient Private Wealth LP30,000$447K<0.01%new13F-HRTimelineGroup
SEI INVESTMENTS COin group SEI INVESTMENTS CO29,930$446K<0.01%new13F-HRTimelineGroup
Oribel Capital Management, LP25,900$386K0.03%new13F-HRTimeline
Crestwood Capital Management, L.P.20,000$298K0.21%new13F-HRTimeline
PharVision Advisers, LLC16,273$242K0.14%new13F-HRTimeline
ENVESTNET ASSET MANAGEMENT INCin group ENVESTNET ASSET MANAGEMENT INC11,074$165K<0.01%new13F-HRTimelineGroup
Graham Capital Management, L.P.10,510$156K0.01%new13F-HRTimeline
Legal & General Group Plcin group Legal & General Group Plc10,000$149K<0.01%new13F-HRTimelineGroup
Jefferies Financial Group Inc.in group Jefferies Financial Group Inc.10,000$149K<0.01%new13F-HRTimelineGroup
GROUP ONE TRADING LLC8,337$124K<0.01%new13F-HRTimeline
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…2,824$42K<0.01%new13F-HRTimelineGroup
Quarry LP2,697$40.2K0.01%new13F-HRTimeline
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…1,868$27.8K<0.01%new13F-HRTimelineGroup
Point72 Europe (London) LLP787$11.7K<0.01%new13F-HRTimeline
Aster Capital Management (DIFC) Ltd477$7.1K<0.01%new13F-HRTimeline
Steward Partners Investment Advisory, L…335$4.99K<0.01%new13F-HRTimeline
FIRST HORIZON CORP294$4.38K<0.01%13F-HRTimeline
PRINCIPAL SECURITIES, INC.in group PRINCIPAL FINANCIAL GROUP INC250$3.72K<0.01%new13F-HRTimelineGroup
SBI Securities Co., Ltd.167$2.49K<0.01%new13F-HRTimeline
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.125$1.81K<0.01%new13F-HRTimelineGroup
Rakuten Securities, Inc.in group Rakuten Group, Inc.1$15<0.01%new13F-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