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Accelerant Holdings (ARX)

Accelerant Holdings (ARX) Insider Trading

Directors, officers and holders of more than 10% of ARX report their trades in its stock on SEC Form 4, within two business days. Each row below is one Form 4 transaction line. The one-letter code says what kind of transaction it was: only P (purchase) and S (sale) are open-market or private trades; awards, option exercises, tax withholding and gifts carry other codes.

Recent Form 4 transactions

The 50 most recent of 100 transactions on file: 6 with code P, 27 with code S and 17 with other codes.

DateInsiderCodeShares
Aug 21, 2026Meriwether Karen SueS Sale542
Aug 13, 2026Hasley NancyS Sale20,489
Aug 11, 2026ONeill Francis JamesS Sale89,219
Aug 10, 2026ONeill Francis JamesS Sale63,616
Aug 10, 2026RADKE JEFFREY LS Sale80,000
Aug 3, 2026RADKE JEFFREY LS Sale80,000
Jul 28, 2026ONeill Francis JamesS Sale104,647
Jul 27, 2026ONeill Francis JamesS Sale110,467
Jul 27, 2026Sternberg Matthew DavidS Sale17,568
Jul 27, 2026RADKE JEFFREY LS Sale80,000
Jul 27, 2026RADKE JEFFREY LS Sale15,223
Jul 23, 2026Sternberg Matthew DavidF Tax Payment3,910
Jul 20, 2026RADKE JEFFREY LS Sale80,000
Jul 17, 2026RADKE JEFFREY LS Sale14,777
Jul 15, 2026ONeill Francis JamesS Sale82,767
Jul 14, 2026ONeill Francis JamesS Sale83,119
Jul 13, 2026RADKE JEFFREY LS Sale80,000
Jul 6, 2026RADKE JEFFREY LS Sale80,000
Jun 26, 2026ONeill Francis JamesS Sale73,500
Jun 25, 2026ONeill Francis JamesS Sale73,500
Jun 23, 2026RADKE JEFFREY LS Sale80,000
Jun 23, 2026Hasley NancyS Sale35,000
Jun 23, 2026ONeill Francis JamesS Sale76,464
Jun 22, 2026ONeill Francis JamesS Sale70,536
May 13, 2026Little Paul ChristopherA Award11,658
May 13, 2026Wainwright SimonA Award23,316
May 13, 2026Sternberg Matthew DavidA Award279,329
May 13, 2026Talach David George PaulA Award23,316
May 13, 2026Meriwether Karen SueA Award11,658
May 13, 2026Hasley NancyA Award11,658
Mar 23, 2026Green Jay MichaelS Sale50,000
Mar 18, 2026Sternberg Matthew DavidA Award180,667
Mar 18, 2026RADKE JEFFREY LA Award300,171
Mar 18, 2026ONeill Francis JamesA Award128,644
Mar 18, 2026Lee-Smith ChristopherA Award128,644
Mar 17, 2026Green Jay MichaelF Tax Payment28,625
Feb 2, 2026Green Jay MichaelF Tax Payment200,637
Dec 8, 2025Meriwether Karen SueP Purchase542
Nov 19, 2025Gaynor SamuelP Purchase7,500
Nov 19, 2025Lee-Smith ChristopherP Purchase14,700
Nov 18, 2025ONeill Francis JamesP Purchase38,000
Nov 17, 2025Sternberg Matthew DavidP Purchase5,700
Nov 14, 2025RADKE JEFFREY LP Purchase74,110
Jul 25, 2025Schwartz Keoni AndrewC Conversion5,427,970
Jul 25, 2025Schwartz Keoni AndrewC Conversion8,111,253
Jul 25, 2025Schwartz Keoni AndrewS Sale8,111,253
Jul 25, 2025Schwartz Keoni AndrewC Conversion2,670,456
Jul 25, 2025Schwartz Keoni AndrewS Sale2,670,456
Jul 25, 2025Schwartz Keoni AndrewC Conversion488,131
Jul 25, 2025Schwartz Keoni AndrewS Sale488,131

The full Form 4 history is on the ARX company page (Insider Trades card, View all).

Questions about this data

Which insider transactions are open-market trades?

Code P (open market or private purchase) and code S (open market or private sale). Code F is shares withheld to pay tax on vesting stock, A is an award from the company, M and X are option exercises and G is a gift. None of those is the insider choosing to buy or sell in the market.

How quickly are insider trades reported?

A Form 4 is due before the end of the second business day after the trade. The date shown is the transaction date from the form.

Who has to file Form 4?

Officers, directors and beneficial owners of more than 10% of a class of the company’s registered equity, under Section 16 of the Securities Exchange Act.

Look up any code in the Form 4 transaction code reference, or read Form 4 codes explained.