Michael James Sullivan - Nov 1, 2025 Form 4 Insider Report for HarborOne Bancorp, Inc. (HONE)

Role: Director
Signature: /s/ Joseph F. Casey, attorney-in-fact
Stock symbol: HONE
Transactions as of: Nov 1, 2025
Transactions value $: $0
Form type: 4
Date filed: 11/3/2025, 04:46 PM
Previous filing: Mar 4, 2025
Next filing: Nov 25, 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Sullivan Michael James	Director	C/O HARBORONE BANCORP, INC., BROCKTON	/s/ Joseph F. Casey, attorney-in-fact	2025-11-03	0001676055

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	HONE	Common Stock	Disposed to Issuer		-85.3K	-100%		0	Nov 1, 2025	Direct	F1
transaction	HONE	Common Stock	Disposed to Issuer		-1K	-100%		0	Nov 1, 2025	Held by Double Eagle LLC	F1

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	HONE	Stock Option (Right to Buy)	Other	$0	-83.3K	-100%	$0.00	0	Nov 1, 2025	Common Stock	83.3K	$10.23	Direct	F2

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Pursuant to the merger agreement, dated as of April 24, 2025, by and among Eastern Bankshares, Inc. ("Eastern"), Eastern Bank, HarborOne Bancorp, Inc. ("HarborOne"), and HarborOne Bank (the "Merger Agreement"), each share of HarborOne common stock was converted into the right to receive, at the election of the holder, either (i) $12.00 in cash or (ii) 0.765 shares of Eastern common stock (the "Exchange Ratio"), subject to certain proration provisions contained in the Merger Agreement.
F2	Pursuant to the Merger Agreement, each outstanding and unexercised option to purchase shares of HarborOne common stock was converted into an option to purchase shares of Eastern common stock. As further described in the Merger Agreement, the number of underlying shares of resulting Eastern common stock subject to such options and the related exercise price were adjusted by the Exchange Ratio.

Content

Pursuant to the merger agreement, dated as of April 24, 2025, by and among Eastern Bankshares, Inc. ("Eastern"), Eastern Bank, HarborOne Bancorp, Inc. ("HarborOne"), and HarborOne Bank (the "Merger Agreement"), each share of HarborOne common stock was converted into the right to receive, at the election of the holder, either (i) $12.00 in cash or (ii) 0.765 shares of Eastern common stock (the "Exchange Ratio"), subject to certain proration provisions contained in the Merger Agreement.

Pursuant to the Merger Agreement, each outstanding and unexercised option to purchase shares of HarborOne common stock was converted into an option to purchase shares of Eastern common stock. As further described in the Merger Agreement, the number of underlying shares of resulting Eastern common stock subject to such options and the related exercise price were adjusted by the Exchange Ratio.