MetaCap

Accelerant Insider Trades

NYSE: ARXFinanceSpecialty InsurersUSD

19.80+0.05 (+0.25%)

At close: Oct 9, 4:00 PM ET · Delayed 15 min

Last 12 months

Purchases
6 · $1.89M
Sales
25 · $21.58M
Shares bought / sold
140.55K / 1.62M
Net activity
Net selling $19.7 million

Accelerant insider activity

Over the last 12 months, Accelerant insiders reported 44 transactions on SEC Form 4: 6 open-market purchases and 25 sales. Insiders bought $1.9 million and sold $21.6 million worth of stock, for net insider selling of $19.7 million. The largest seller was ONeill Francis James, with $11.0 million in reported sales.

The most recent filing shows Meriwether Karen Sue (Director) selling 542 shares at $19.62 on Aug 21, 2026. Insider sales are common for compensation, tax and diversification reasons, while open-market purchases are rarer; tracking both helps put ARX's ownership changes in context.

Summary generated from market data by MetaCap's automated system. Methodology

ARX insider transactions

Accelerant insider transactions
DateInsiderTypeSharesValueFiling
Aug 21, 2026Meriwether Karen SueDirectorSale542$10.63KForm 4
Aug 13, 2026Hasley NancyDirectorSale20,489$400.84KForm 4
Aug 11, 2026ONeill Francis JamesCo-Founder, Chief U/W OfficerSale89,219$1.11MForm 4
Aug 10, 2026RADKE JEFFREY LCo-Founder, CEOSale80,000$967.10KForm 4
Aug 10, 2026ONeill Francis JamesCo-Founder, Chief U/W OfficerSale63,616$767.67KForm 4
Aug 3, 2026RADKE JEFFREY LCo-Founder, CEOSale80,000$964.53KForm 4
Jul 28, 2026ONeill Francis JamesCo-Founder, Chief U/W OfficerSale104,647$1.52MForm 4
Jul 27, 2026Sternberg Matthew DavidCOO, Risk ExchangeSale17,568$257.21KForm 4
Jul 27, 2026RADKE JEFFREY LCo-Founder, CEOSale15,223$220.01KForm 4
Jul 27, 2026RADKE JEFFREY LCo-Founder, CEOSale80,000$1.17MForm 4
Jul 27, 2026ONeill Francis JamesCo-Founder, Chief U/W OfficerSale110,467$1.62MForm 4
Jul 23, 2026Sternberg Matthew DavidCOO, Risk ExchangeTax withholding3,910$53.84KForm 4
Jul 20, 2026RADKE JEFFREY LCo-Founder, CEOSale80,000$1.08MForm 4
Jul 17, 2026RADKE JEFFREY LCo-Founder, CEOSale14,777$211.28KForm 4
Jul 15, 2026ONeill Francis JamesCo-Founder, Chief U/W OfficerSale82,767$1.05MForm 4
Jul 14, 2026ONeill Francis JamesCo-Founder, Chief U/W OfficerSale83,119$1.07MForm 4
Jul 13, 2026RADKE JEFFREY LCo-Founder, CEOSale80,000$1.05MForm 4
Jul 6, 2026RADKE JEFFREY LCo-Founder, CEOSale80,000$1.07MForm 4
Jun 29, 2026RADKE JEFFREY LCo-Founder, CEOSale80,000$1.03MForm 4
Jun 26, 2026ONeill Francis JamesCo-Founder, Chief U/W OfficerSale73,500$968.90KForm 4
Jun 25, 2026ONeill Francis JamesCo-Founder, Chief U/W OfficerSale73,500$959.78KForm 4
Jun 23, 2026ONeill Francis JamesCo-Founder, Chief U/W OfficerSale76,464$1.00MForm 4
Jun 23, 2026RADKE JEFFREY LCo-Founder, CEOSale80,000$1.05MForm 4
Jun 23, 2026Hasley NancyDirectorSale35,000$458.95KForm 4
Jun 22, 2026ONeill Francis JamesCo-Founder, Chief U/W OfficerSale70,536$931.58KForm 4
May 13, 2026Little Paul ChristopherDirectorAward11,658—Form 4
May 13, 2026Hasley NancyDirectorAward11,658—Form 4
May 13, 2026Meriwether Karen SueDirectorAward11,658—Form 4
May 13, 2026Talach David George PaulDirectorAward23,316—Form 4
May 13, 2026Sternberg Matthew DavidCOO, Risk ExchangeAward279,329—Form 4
May 13, 2026Wainwright SimonDirectorAward23,316—Form 4
Mar 23, 2026Green Jay MichaelChief Financial OfficerSale50,000$638.28KForm 4
Mar 18, 2026RADKE JEFFREY LCo-Founder, CEOAward300,171—Form 4
Mar 18, 2026Sternberg Matthew DavidCOO, Risk ExchangeAward180,667—Form 4
Mar 18, 2026ONeill Francis JamesCo-Founder, Chief U/W OfficerAward128,644—Form 4
Mar 18, 2026Lee-Smith ChristopherCo-Founder, Head of Distrib.Award128,644—Form 4
Mar 17, 2026Green Jay MichaelChief Financial OfficerTax withholding28,625$332.91KForm 4
Feb 2, 2026Green Jay MichaelChief Financial OfficerTax withholding200,637$2.56MForm 4
Dec 8, 2025Meriwether Karen SueDirectorBuy542$7.95KForm 4
Nov 19, 2025Gaynor SamuelDirectorBuy7,500$100.77KForm 4
Nov 19, 2025Lee-Smith ChristopherCo-Founder, Head of Distrib.Buy14,700$197.24KForm 4
Nov 18, 2025ONeill Francis JamesCo-Founder, Chief U/W OfficerBuy38,000$506.81KForm 4
Nov 17, 2025Sternberg Matthew DavidCOO, Risk ExchangeBuy5,700$74.70KForm 4
Nov 14, 2025RADKE JEFFREY LCo-Founder, CEOBuy74,110$999.37KForm 4
Jul 25, 2025RADKE JEFFREY LCo-Founder, CEOConversion249,828—Form 4
Jul 25, 2025RADKE JEFFREY LCo-Founder, CEOConversion27,945,395—Form 4
Jul 25, 2025RADKE JEFFREY LCo-Founder, CEOConversion33,464—Form 4
Jul 25, 2025Sternberg Matthew DavidCOO, Risk ExchangeAward152,264—Form 4
Jul 25, 2025ONeill Francis JamesCo-Founder, Chief U/W OfficerConversion7,975—Form 4
Jul 25, 2025ONeill Francis JamesCo-Founder, Chief U/W OfficerConversion7,136,705—Form 4
Jul 25, 2025Schwartz Keoni Andrew & ACP Accelerant Holdings, L.P. & ACP Insurance Management, LLCDirectorSale326,312$6.85MForm 4
Jul 25, 2025Schwartz Keoni Andrew & ACP Accelerant Holdings, L.P. & ACP Insurance Management, LLCDirectorConversion326,312—Form 4
Jul 25, 2025Schwartz Keoni Andrew & ACP Accelerant Holdings, L.P. & ACP Insurance Management, LLCDirectorSale488,131$10.25MForm 4
Jul 25, 2025Schwartz Keoni Andrew & ACP Accelerant Holdings, L.P. & ACP Insurance Management, LLCDirectorConversion488,131—Form 4
Jul 25, 2025Schwartz Keoni Andrew & ACP Accelerant Holdings, L.P. & ACP Insurance Management, LLCDirectorSale2,670,456$56.08MForm 4
Jul 25, 2025Schwartz Keoni Andrew & ACP Accelerant Holdings, L.P. & ACP Insurance Management, LLCDirectorConversion2,670,456—Form 4
Jul 25, 2025Schwartz Keoni Andrew & ACP Accelerant Holdings, L.P. & ACP Insurance Management, LLCDirectorSale8,111,253$170.34MForm 4
Jul 25, 2025Schwartz Keoni Andrew & ACP Accelerant Holdings, L.P. & ACP Insurance Management, LLCDirectorConversion8,111,253—Form 4

Transaction codes follow SEC Form 4: P = open-market purchase, S = open-market sale, A = grant or award, M = option exercise, F = shares withheld for taxes. About Form 4

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