Jeffrey L. Radke - 03 Aug 2026 Form 4 Insider Report for Accelerant Holdings (ARX)

Reporting relationship: Co-Founder, CEO, Director, 10%+ Owner
Issuer ticker: ARX
Reported as of: 03 Aug 2026
Net transaction value: -$964,528
SEC form: 4
Accepted by SEC: 04 Aug 2026, 20:18:34 UTC
Prior SEC filing: 28 Jul 2026
Source filing: View source filing
Reporting owner signature: /s/ Robert L. Villasenor, attorney-in-fact for Jeffrey L Radke

Key filing fact

Jeffrey L. Radke filed Form 4 for Accelerant Holdings (ARX) on 04 Aug 2026.

Key facts

This page summarizes Jeffrey L. Radke's Form 4 filing for Accelerant Holdings (ARX).
1 reported transaction and 0 derivative rows are listed below.
Accepted by SEC: 04 Aug 2026, 20:18.

Change

Previous filing in this sequence was filed on 28 Jul 2026.
Current net transaction value: -$964,528.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001241965 Primary reporting owner

RADKE JEFFREY L

Relationship: Co-Founder, CEO, Director, 10%+ Owner
Address: UNIT 106, WINDWARD 3, REGATTA OFFICE PARK, WEST BAY ROAD, GRAND CAYMAN, CAYMAN ISLANDS
Signature: /s/ Robert L. Villasenor, attorney-in-fact for Jeffrey L Radke
Signature date: 04 Aug 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

ARX transaction

Class A Common Shares

Sale

Transaction value: $964,528
Shares: -80,000
Change %: -0.29%
Price: $12.06
Shares after: 27,671,939
Date: 03 Aug 2026
Ownership: By LLC
Footnotes: F1, F2, F3

ARX holding

Class A Common Shares

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 249,951
Date: 03 Aug 2026
Ownership: By Trust
Footnotes: F4

ARX holding

Class A Common Shares

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 333,652
Date: 03 Aug 2026
Ownership: Direct

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Rule 10b5-1 trading plan

These transactions were reported as open-market trades under a Rule 10b5-1 plan. The plan lets an insider set trading instructions in advance, which can reduce the risk of trading while in possession of material nonpublic information.

Original filing language: transaction made pursuant to a contract, instruction, or written plan intended to satisfy Rule 10b5-1(c).

Explanation of responses 4 footnotes

Footnote F1

The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 24, 2026.

Footnote F2

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $11.815 to $12.235, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price.

Footnote F3

These securities are held directly by Badly Bent LLC. The Reporting Person is the manager of the sole member of Badly Bent LLC. The Reporting Person disclaims beneficial ownership over these securities, except to the extent of his pecuniary interest therein.

Footnote F4

These securities are held in trust for the benefit of the Reporting Person's spouse, who is the trustee of the trust. The Reporting Person disclaims beneficial ownership over these securities, except to the extent of his pecuniary interest therein.