SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)	3 Months Ended
Mar. 31, 2025
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
Basis of Presentation and Consolidation	Basis of Presentation and Consolidation The unaudited interim Consolidated Financial Statements of HarborOne Bancorp, Inc. presented herein have been prepared pursuant to the rules of the SEC for quarterly reports on Form 10-Q and do not include all of the information and note disclosures required by GAAP. In the opinion of Management, all adjustments and disclosures considered necessary for the fair presentation of the accompanying unaudited interim Consolidated Financial Statements have been included. Interim results are not necessarily reflective of the results of the entire year. The accompanying unaudited interim Consolidated Financial Statements should be read in conjunction with the audited Consolidated Financial Statements for the years ended December 31, 2024 and 2023 and notes thereto included in the Company’s Annual Report on Form 10-K. The unaudited interim Consolidated Financial Statements include the accounts of the Company; the Company’s subsidiaries, Legion Parkway Company LLC (a security corporation) and HarborOne Bank; and the Bank’s wholly owned subsidiaries, which consist of HarborOne Mortgage, LLC, HarborOne Security Company, Inc., and a passive investment corporation. The passive investment corporation maintains and manages certain assets of the Bank. The security company was established for the purpose of buying, holding and selling securities on its own behalf. All significant intercompany balances and transactions have been eliminated in consolidation. Certain prior year amounts have been reclassified to conform to the current year financial statement presentation. These changes and reclassifications did not impact previously reported net income or comprehensive income.
Merger	Merger On April 24, 2025, the Company, the Bank, Eastern, and Eastern Bank entered into the Merger Agreement. Pursuant to the terms and subject to the conditions set forth in the Merger Agreement, Eastern will acquire the Company and the Bank through the merger of the Company with and into Eastern, with Eastern as the surviving entity (the “Merger”). The Merger Agreement further provides that following the Merger, the Bank will merge with and into Eastern Bank, with Eastern Bank as the surviving entity. Under the terms of the Merger Agreement, the Company’s shareholders will receive for each share of Company common stock, at the holder’s election, either (i) 0.765 shares of Eastern common stock (the “Stock Consideration”) or (ii) $12.00 in cash (the “Cash Consideration”), subject to allocation procedures to ensure that the total number of shares of the Company’s common stock that receive the Stock Consideration represents between 75% and 85% of the total number of shares of the Company’s common stock outstanding immediately prior to the completion of the Merger. Each outstanding and unexercised option to acquire a share of Company common stock will be converted into an option to purchase that number of whole shares of Company Common Stock (rounded down to the nearest whole share) equal to the product of (i) the number of shares of HarborOne Common Stock subject to such HarborOne Stock Option multiplied by (ii) 0.765 (the “Exchange Ratio”) with an exercise price per share of Company Common Stock (rounded up to the nearest whole cent) equal to the quotient of (x) the exercise price per share of HarborOne Common Stock of such HarborOne Stock Option divided by (y) the Exchange Ratio. Except as expressly provided in the immediately preceding sentence, each such Company Stock Option replacing a HarborOne Stock Option will be subject to the same terms and conditions (including vesting and exercisability terms) as applied to the corresponding HarborOne Stock Option. Each restricted stock award of the Company, whether or not vested, that is outstanding immediately prior to the effective time of the Merger will fully vest and be canceled and converted into the right to receive the per share Cash Consideration and/or Stock Consideration (the “Merger Consideration”). In addition, each HarborOne performance-based restricted stock unit that is outstanding and unvested will accelerate in full and fully vest, with any applicable performance-based vesting condition to be deemed achieved at the target level of performance, and shall be converted into the right to receive the Merger Consideration. Completion of the Merger is subject to customary closing conditions, including receipt of regulatory approvals and approval by the Company’s shareholders. The Company anticipates that the Merger will close during the fourth quarter of 2025, although Eastern has the right under the Merger Agreement to defer the closing until February 20, 2026 if the closing conditions are satisfied after October 31, 2025 but before February 20, 2026.
Nature of Operations	Nature of Operations The Company provides a variety of financial services to individuals and businesses through its 30 full-service branches in Massachusetts and Rhode Island, and a commercial lending office in each of Boston, Massachusetts and Providence, Rhode Island. HarborOne Mortgage maintains offices in Florida, Maine, Massachusetts, New Hampshire, New Jersey and Rhode Island and originates loans in five additional states. The Company’s primary deposit products are checking, money market, savings, and term certificate of deposit accounts, while its primary lending products are commercial real estate, commercial, residential mortgages, home equity lines of credit, and consumer loans. The Company also originates, sells and services residential mortgage loans through HarborOne Mortgage.
Summary of Significant Accounting Policies and Recently Adopted Accounting Standards Updates	Summary of Significant Accounting Policies and Recently Adopted Accounting Standards Updates Significant accounting policies in effect and disclosed within the Company’s most recent audited Consolidated Financial Statements as of December 31, 2024 remain substantially unchanged.

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)

3 Months Ended

Mar. 31, 2025

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

The unaudited interim Consolidated Financial Statements of HarborOne Bancorp, Inc. presented herein have been prepared pursuant to the rules of the SEC for quarterly reports on Form 10-Q and do not include all of the information and note disclosures required by GAAP. In the opinion of Management, all adjustments and disclosures considered necessary for the fair presentation of the accompanying unaudited interim Consolidated Financial Statements have been included. Interim results are not necessarily reflective of the results of the entire year. The accompanying unaudited interim Consolidated Financial Statements should be read in conjunction with the audited Consolidated Financial Statements for the years ended December 31, 2024 and 2023 and notes thereto included in the Company’s Annual Report on Form 10-K.

The unaudited interim Consolidated Financial Statements include the accounts of the Company; the Company’s subsidiaries, Legion Parkway Company LLC (a security corporation) and HarborOne Bank; and the Bank’s wholly owned subsidiaries, which consist of HarborOne Mortgage, LLC, HarborOne Security Company, Inc., and a passive investment corporation. The passive investment corporation maintains and manages certain assets of the Bank. The security company was established for the purpose of buying, holding and selling securities on its own behalf. All significant intercompany balances and transactions have been eliminated in consolidation.

Certain prior year amounts have been reclassified to conform to the current year financial statement presentation. These changes and reclassifications did not impact previously reported net income or comprehensive income.

Merger

On April 24, 2025, the Company, the Bank, Eastern, and Eastern Bank entered into the Merger Agreement. Pursuant to the terms and subject to the conditions set forth in the Merger Agreement, Eastern will acquire the Company and the Bank through the merger of the Company with and into Eastern, with Eastern as the surviving entity (the “Merger”). The Merger Agreement further provides that following the Merger, the Bank will merge with and into Eastern Bank, with Eastern Bank as the surviving entity. Under the terms of the Merger Agreement, the Company’s shareholders will receive for each share of Company common stock, at the holder’s election, either (i) 0.765 shares of Eastern common stock (the “Stock Consideration”) or (ii) $12.00 in cash (the “Cash Consideration”), subject to allocation procedures to ensure that the total number of shares of the Company’s common stock that receive the Stock Consideration represents between 75% and 85% of the total number of shares of the Company’s common stock outstanding immediately prior to the completion of the Merger.

Each outstanding and unexercised option to acquire a share of Company common stock will be converted into an option to purchase that number of whole shares of Company Common Stock (rounded down to the nearest whole share) equal to the product of (i) the number of shares of HarborOne Common Stock subject to such HarborOne Stock Option multiplied by (ii) 0.765 (the “Exchange Ratio”) with an exercise price per share of Company Common Stock (rounded up to the nearest whole cent) equal to the quotient of (x) the exercise price per share of HarborOne Common Stock of such HarborOne Stock Option divided by (y) the Exchange Ratio. Except as expressly provided in the immediately preceding sentence, each such Company Stock Option replacing a HarborOne Stock Option will be subject to the same terms and conditions (including vesting and exercisability terms) as applied to the corresponding HarborOne Stock Option. Each restricted stock award of the Company, whether or not vested, that is outstanding immediately prior to the effective time of the Merger will fully vest and be canceled and converted into the right to receive the per share Cash Consideration and/or Stock Consideration (the “Merger Consideration”). In addition, each HarborOne performance-based restricted stock unit that is outstanding and unvested will accelerate in full and fully vest, with any applicable performance-based vesting condition to be deemed achieved at the target level of performance, and shall be converted into the right to receive the Merger Consideration.

Completion of the Merger is subject to customary closing conditions, including receipt of regulatory approvals and approval by the Company’s shareholders. The Company anticipates that the Merger will close during the fourth quarter of 2025, although Eastern has the right under the Merger Agreement to defer the closing until February 20, 2026 if the closing conditions are satisfied after October 31, 2025 but before February 20, 2026.

Nature of Operations

The Company provides a variety of financial services to individuals and businesses through its 30 full-service branches in Massachusetts and Rhode Island, and a commercial lending office in each of Boston, Massachusetts and Providence, Rhode Island. HarborOne Mortgage maintains offices in Florida, Maine, Massachusetts, New Hampshire, New Jersey and Rhode Island and originates loans in five additional states.

The Company’s primary deposit products are checking, money market, savings, and term certificate of deposit accounts, while its primary lending products are commercial real estate, commercial, residential mortgages, home equity lines of credit, and consumer loans. The Company also originates, sells and services residential mortgage loans through HarborOne Mortgage.

Summary of Significant Accounting Policies and Recently Adopted Accounting Standards Updates

Significant accounting policies in effect and disclosed within the Company’s most recent audited Consolidated Financial Statements as of December 31, 2024 remain substantially unchanged.