Accelerant Holdings (ARX) Insider Trading

Over the last 3 months, ARX insiders made 0 open-market buys and 2 sales, a net sale of -$1.9M (SEC Form 4). Over the last 6 months, 63 institutions increased and 50 reduced their position (13F).

Insider Activity

Sentiment
0/100
Buys (3m)
0
Sells (3m)
2
Net (3m)
-$1.9M
Insider trades by month Buys Sells
Dec
Jul
Nov
Dec
Mar
Jun
Context3-month price +3.6%Institutions accumulating (13F)
DateInsiderTypeSharesPrice
Jun 24, 2026ONeill Francis Jamesofficer: Co-Founder, Chief U/W OfficerSell76,464$13.11
Jun 24, 2026ONeill Francis Jamesofficer: Co-Founder, Chief U/W OfficerSell70,536$13.21
May 15, 2026Sternberg Matthew Davidofficer: COO, Risk ExchangeGrant279,329
May 15, 2026Little Paul ChristopherdirectorGrant11,658
May 15, 2026Hasley NancydirectorGrant11,658
May 15, 2026Meriwether Karen SuedirectorGrant11,658
May 15, 2026Talach David George PauldirectorGrant23,316
May 15, 2026Wainwright SimondirectorGrant23,316
Mar 24, 2026Green Jay Michaelofficer: Chief Financial OfficerSell50,000$12.77
Mar 20, 2026Sternberg Matthew Davidofficer: COO, Risk ExchangeGrant180,667
Mar 20, 2026RADKE JEFFREY Ldirector, 10 percent owner, officer: Co-Founder, CEOGrant300,171
Mar 20, 2026ONeill Francis Jamesofficer: Co-Founder, Chief U/W OfficerGrant128,644
Mar 20, 2026Lee-Smith Christopherdirector, officer: Co-Founder, Head of Distrib.Grant128,644
Mar 18, 2026Green Jay Michaelofficer: Chief Financial OfficerTax28,625$11.63
Feb 4, 2026Green Jay Michaelofficer: Chief Financial OfficerTax200,637$12.76
Dec 17, 2025Lee-Smith Christopherdirector, officer: Co-Founder, Head of Distrib.Buy14,700$13.42
Dec 9, 2025Meriwether Karen SuedirectorBuy542$14.67
Nov 20, 2025ONeill Francis Jamesofficer: Co-Founder, Chief U/W OfficerBuy38,000$13.34
Nov 20, 2025Gaynor SamueldirectorBuy7,500$13.44
Nov 19, 2025Sternberg Matthew Davidofficer: COO, Risk ExchangeBuy5,700$13.10
Nov 18, 2025RADKE JEFFREY Ldirector, 10 percent owner, officer: Co-Founder, CEOBuy74,110$13.48
Jul 29, 2025Sternberg Matthew Davidofficer: COO, Risk ExchangeGrant152,264
Jul 29, 2025Schwartz Keoni Andrewdirector, 10 percent owner: Sell326,312$21.00
Jul 29, 2025Meriwether Karen SuedirectorGrant9,210
Jul 29, 2025Little Paul ChristopherdirectorGrant9,210
Jul 29, 2025Hasley Nancydirector, officer: General CounselBuy500$21.00
Jul 29, 2025Harrington Wendy LiisadirectorGrant9,210
Jul 29, 2025Green Jay Michaelofficer: Chief Financial OfficerGrant1,454,851
Jul 25, 2025Lee-Smith Christopherdirector, officer: Co-Founder, Head of Distrib.Grant2,746,261$21.00
Jul 25, 2025RADKE JEFFREY Ldirector, officer: Co-Founder, CEOGrant8,279,552$21.00

Source: ARX SEC Form 4 filings, latest Jun 24, 2026. For informational purposes only — not investment advice.

Institutional activity (13F)

How institutions changed their ARX positions over the last 6 months (SEC Form 13F).

Increased
63
New positions
72
Reduced
50
Sold out
50
Largest moves
InstitutionActionSharesFiled
SECURITY BENEFIT LIFE INSURANCE CO /KS/Unchanged5.9MFeb 3, 2026
SECURITY BENEFIT LIFE INSURANCE CO /KS/Unchanged5.9MMay 4, 2026
CAPITAL WORLD INVESTORSIncreased5.8MFeb 11, 2026
CAPITAL WORLD INVESTORSReduced5.2MMay 13, 2026
KEENAN CAPITAL, LLCIncreased4.0MMay 15, 2026
VANGUARD CAPITAL MANAGEMENT LLCNew Position3.9MMay 15, 2026
GILDER GAGNON HOWE & CO LLCIncreased3.7MMay 15, 2026
GILDER GAGNON HOWE & CO LLCReduced3.7MFeb 17, 2026
AMERICAN CENTURY COMPANIES INCIncreased3.2MMay 15, 2026
KEENAN CAPITAL, LLCNew Position3.1MFeb 13, 2026
BARINGS LLCUnchanged3.1MMay 6, 2026
BARINGS LLCUnchanged3.1MFeb 12, 2026
ALLIANCEBERNSTEIN L.P.Increased2.8MFeb 17, 2026
ALLIANCEBERNSTEIN L.P.Reduced2.8MMay 15, 2026
BALYASNY ASSET MANAGEMENT L.P.Increased2.7MFeb 17, 2026

Source: SEC Form 13F filings. For informational purposes only — not investment advice.