[Form 4] Accelerant Holdings Insider Trading Activity

Rhea-AI Filing Summary

On 07/23/2025, Co-Founder & Chief Underwriting Officer Francis James O’Neill received a stock option covering 882,611 Class A common shares of Accelerant Holdings (ARX) at an exercise price of $21, as disclosed in a Form 4 filed 07/25/2025.

Vesting terms tie the award to long-term service: 25% vests on 07/23/2026 and the remaining 75% vests in 6.25% quarterly installments through 07/23/2029. The award is coded “A,” indicating a grant with no cash payment or share sale. O’Neill now beneficially owns 882,611 derivative securities, all held directly.

The grant increases potential dilution if exercised but aligns executive compensation with future share-price performance by requiring four years of continued service before full vesting.

Positive

• Long-term incentive alignment: Four-year vesting schedule encourages sustained executive performance.
• No insider selling: Transaction is a grant (Code A); no shares were disposed.

Negative

• Potential dilution: Exercise of 882,611 options would expand the share count.

Insights

Securities Analyst

TL;DR: Four-year option grant of 882k shares at $21; no sales; neutral-to-slightly positive incentive signal for ARX investors.

The Form 4 records a sizeable option award rather than an open-market purchase or sale. Because the exercise price is set at $21 and vesting stretches to 2029, the grant encourages the executive to focus on long-term value creation. No immediate cash outflow or insider selling is involved, so near-term share supply is unaffected. However, if the option is eventually exercised, up to 882,611 new shares could be issued, modestly diluting existing holders. Overall impact is neutral, leaning positive due to incentive alignment.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

1. Name and Address of Reporting Person^*

ONeill Francis James

(Last) (First) (Middle)

UNIT 106, WINDWARD 3

REGATTA OFFICE PARK, WEST BAY ROAD

(Street)

GRAND CAYMAN E9 KY1-1108

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Accelerant Holdings [ ARX ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Co-Founder, Chief U/W Officer

3. Date of Earliest Transaction (Month/Day/Year)
07/23/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Stock Option (Right to Buy)	$21	07/23/2025		A		882,611		(1)	07/23/2035	Class A Common Shares	882,611	$0	882,611	D

Explanation of Responses:

1. Twenty-five percent (25%) of the Class A Common Shares subject to the option vest on July 23, 2026 (the one-year anniversary of the grant date), and the remaining Class A Common Shares subject to the option vest in 6.25% quarterly installments through July 23, 2029 (the four-year anniversary of the grant date), in each case subject to the Reporting Person's continuous service.

	/s/ Robert Hardy, Attorney-in-Fact	07/25/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What insider transaction did ARX report on 07/25/2025?

A Form 4 showed a stock option grant (Code A) to Co-Founder Francis James O’Neill.

How many Accelerant Holdings shares are covered by the new option?

882,611 Class A common shares.

What is the exercise price of the granted ARX option?

The option is exercisable at $21 per share.

When does the option granted to the ARX executive vest?

25% vests on 07/23/2026; the remainder vests quarterly (6.25%) until 07/23/2029.

Did the filing disclose any insider selling of ARX shares?

No. The Form 4 only reports an option award; no shares were sold.