Matthew David Sternberg

CIK: 0002008628

Transaction Breakdown

Open Market Buys (P)1 (16.7%)

High conviction signal

Open Market Sales (S)1 (16.7%)

Position reduction

Option Exercises (M)0 (0.0%)

Derivative conversions

Awards (A)3 (50.0%)

Compensation grants

Other (G, F, J, C, D, …)1 (16.7%)

Gifts, tax withholding, conversions, dispositions to the issuer and other codes

Companies & Roles (1)

ARX

Accelerant Holdings

Officer

Discretionary Trading P&L

Holdings

Transaction History (6 total)

ARX
Accelerant Holdings
Jul 27, 2026
Sale(S)
Direct
17.6K shares at avg. $14.64$257K
ARX
Accelerant Holdings
Jul 23, 2026
Tax Payment(F)
Direct
3.9K shares at avg. $13.77$54K
ARX
Accelerant Holdings
May 13, 2026
Award(A)
Direct
279.3K shares-
ARX
Accelerant Holdings
Mar 18, 2026
Award(A)
Direct
180.7K shares-
ARX
Accelerant Holdings
Nov 17, 2025
Purchase(P)
Direct
5.7K shares at avg. $13.10$75K
ARX
Accelerant Holdings
Jul 25, 2025
Award(A)
Direct
152.3K shares-

		Type	Shares	Price		Ownership
Jul 27, 2026	ARX Accelerant Holdings	Sale(S)	17,568	$14.64	$257,206	Direct
Jul 23, 2026	ARX Accelerant Holdings	Tax Payment(F)	3,910	$13.77	$53,841	Direct
May 13, 2026	ARX Accelerant Holdings	Award(A)	279,329	-	$0	Direct
Mar 18, 2026	ARX Accelerant Holdings	Award(A)	180,667	-	$0	Direct
Nov 17, 2025	ARX Accelerant Holdings	Purchase(P)	5,700	$13.10	$74,696	Direct
Jul 25, 2025	ARX Accelerant Holdings	Award(A)	152,264	-	-	Direct

1-6 of 6 transactions

About Sternberg Matthew David

Sternberg Matthew David (SEC CIK 0002008628) files insider reports with the SEC as COO, Risk Exchange of Accelerant Holdings (ARX).

Signal8 holds 7 ownership filings by Sternberg Matthew David (2 Form 3, 5 Form 4), filed between Jul 23, 2025 and Jul 27, 2026. Those filings report 6 transactions, from Jul 25, 2025 to Jul 27, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on Sternberg Matthew David's filings is in GRAND CAYMAN.

Recent filings by Sternberg Matthew David

Jul 27, 2026: Open-market sale of ARX shares (Form 4, code S).
Jul 23, 2026: Tax withholding of ARX shares (Form 4, code F).
May 13, 2026: Grant or award of ARX shares (Form 4, code A).
Mar 18, 2026: Grant or award of ARX shares (Form 4, code A).
Nov 17, 2025: Open-market purchase of ARX shares (Form 4, code P).

Other insiders filing for Accelerant Holdings (ARX)

Meriwether Karen Sue, Director
Hasley Nancy, Director
ONeill Francis James, Co-Founder, Chief U/W Officer
RADKE JEFFREY L, Co-Founder, CEO
Wainwright Simon, Director
Talach David George Paul, Director

How to read Form 4 transaction codes