Accelerant Holdings CEO reports stock sales under plan

Accelerant Holdings Co‑Founder and CEO Jeffrey L. Radke, a 10% owner, reported two indirect sales of Class A Common Shares by Badly Bent LLC on July 27, 2026, totaling 95,223 shares.

Rhea-AI Filing Summary

Accelerant Holdings Co‑Founder and CEO Jeffrey L. Radke, a 10% owner, reported two indirect sales of Class A Common Shares by Badly Bent LLC on July 27, 2026, totaling 95,223 shares. The reported per‑share prices are weighted averages; underlying trades occurred in ranges of $14.40–$14.83 and $14.29–$14.66, executed under a Rule 10b5‑1 trading plan adopted March 24, 2026. Radke is manager of the LLC’s sole member and disclaims beneficial ownership except for his pecuniary interest. He also reports 333,652 shares held directly and 249,951 shares held in a trust for his spouse, again with beneficial ownership disclaimed except to the extent of any pecuniary interest.

Insider Trade Summary 10b5-1

Net Seller: 95,223 shares

Net Sell 4 txns

Insider RADKE JEFFREY L

Role Co-Founder, CEO

Sold 95,223 shs ($1.39M)

Type	Security	Shares	Price	Value
Sale	Class A Common Shares F1, F2, F3	80,000	$14.6315	$1.17M
Sale	Class A Common Shares F1, F4, F3	15,223	$14.4527	$220K
holding	Class A Common Shares F5	--	--	--
holding	Class A Common Shares	--	--	--

Holdings After Transaction: Class A Common Shares — 27,751,939 shares (Indirect, By LLC); Class A Common Shares — 249,951 shares (Indirect, By Trust); Class A Common Shares — 333,652 shares (Direct)

Footnotes (5)

1. 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.
2. F2. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $14.40 to $14.83, 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.
3. 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.
4. F4. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $14.29 to $14.66, 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.
5. F5. 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.

Key Figures

Shares sold (lot 1): 80000 Class A Common Shares Shares sold (lot 2): 15223 Class A Common Shares Total shares sold: 95223 Class A Common Shares +4 more

7 metrics

Shares sold (lot 1) 80000 Class A Common Shares Indirect sale by Badly Bent LLC on 2026-07-27 at weighted-average price $14.6315

Shares sold (lot 2) 15223 Class A Common Shares Indirect sale by Badly Bent LLC on 2026-07-27 at weighted-average price $14.4527

Total shares sold 95223 Class A Common Shares Sum of reported indirect sales on 2026-07-27; transactionSummary net-sell shares

Price range lot 1 $14.40–$14.83 per share Footnote F2 range for 80,000-share sale; weighted-average price reported in table

Price range lot 2 $14.29–$14.66 per share Footnote F4 range for 15,223-share sale; weighted-average price reported in table

Indirect trust holdings 249951 Class A Common Shares Shares held in trust for Radke’s spouse after transactions; indirect ownership

Direct holdings 333652 Class A Common Shares Shares held directly by Jeffrey L. Radke after the reported transactions

Key Terms

Rule 10b5-1 trading plan, weighted average price, beneficial ownership, pecuniary interest, +1 more

5 terms

Rule 10b5-1 trading plan financial

"sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan"

A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.

weighted average price financial

"The price reported in Column 4 is a weighted average price."

Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.

beneficial ownership financial

"The Reporting Person disclaims beneficial ownership over these securities"

Beneficial ownership means the person or entity that actually enjoys the benefits of owning shares or other assets — such as receiving dividends, voting rights, or price gains — even if the legal title is held in another name. For investors it matters because knowing who truly controls and profits from a company reveals who can influence decisions, exposes potential conflicts of interest or hidden concentration of power, and affects transparency and risk in the stock.

pecuniary interest financial

"disclaims beneficial ownership over these securities, except to the extent of his pecuniary interest"

indirect ownership financial

"These securities are held directly by Badly Bent LLC... indirect ownership via entity"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider stock sale did Accelerant Holdings (ARX) report for Jeffrey L. Radke?

Accelerant Holdings Co‑Founder and CEO Jeffrey L. Radke reported two indirect sales totaling 95,223 Class A shares on July 27, 2026, executed by Badly Bent LLC and disclosed as open‑market or private transactions at weighted‑average prices in the mid‑$14 range.

At what prices were the 95,223 ARX Class A shares sold in Radke’s Form 4?

Radke’s transactions list weighted‑average prices of $14.6315 for 80,000 shares and $14.4527 for 15,223 shares, with underlying trades occurring in ranges of $14.40–$14.83 and $14.29–$14.66 per share, respectively, according to the transaction footnotes.

Were Jeffrey L. Radke’s ARX stock sales made under a Rule 10b5-1 trading plan?

Yes. A footnote states the sales were effected under a Rule 10b5‑1 trading plan adopted by Radke on March 24, 2026. Rule 10b5‑1 plans prearrange trade terms, which can reduce the informational value of trade timing for outside investors.

Were the reported ARX share sales by Jeffrey L. Radke direct or indirect?

Both reported sales were indirect, from Class A shares held by Badly Bent LLC. Radke is manager of the LLC’s sole member and disclaims beneficial ownership of those securities, except to the extent of his pecuniary interest in that entity.

What ARX shareholdings does Jeffrey L. Radke report after these transactions?

Post‑transaction, Radke reports 333,652 Class A shares held directly and 249,951 Class A shares held in a trust for his spouse, who serves as trustee. He disclaims beneficial ownership of the trust shares except for any pecuniary interest he may have.

How many Accelerant Holdings (ARX) shares did Badly Bent LLC sell on July 27, 2026?

Badly Bent LLC sold 80,000 Class A shares at a weighted‑average price of $14.6315 and an additional 15,223 shares at a weighted‑average price of $14.4527, for a combined total of 95,223 shares sold on that date.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 07/28/2026 - 09:28 PM Accepted by SEC EDGAR 07/28/2026 - 09:25 PM Learn about SEC filing dates

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).

X

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

RADKE JEFFREY L

(Last) (First) (Middle)

UNIT 106, WINDWARD 3

REGATTA OFFICE PARK, WEST BAY ROAD

(Street)

GRAND CAYMAN KY1-1108

(City) (State) (Zip)

CAYMAN ISLANDS

(Country)

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

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

X	Director	X	10% Owner
X	Officer (give title below)		Other (specify below)
	Co-Founder, CEO

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
07/27/2026

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

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

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

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
Class A Common Shares	07/27/2026		S		80,000(1)	D	$14.6315(2)	27,767,162	I	By LLC(3)
Class A Common Shares	07/27/2026		S		15,223(1)	D	$14.4527(4)	27,751,939	I	By LLC(3)
Class A Common Shares								249,951	I	By Trust(5)
Class A Common Shares								333,652	D

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

Explanation of Responses:

1. 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.

2. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $14.40 to $14.83, 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.

3. 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.

4. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $14.29 to $14.66, 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.

5. 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.

Remarks:

	/s/ Robert L. Villasenor, attorney-in-fact for Jeffrey L Radke	07/28/2026
	** 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.
* Form 4: SEC 1474 (03-26)