Form 4: Brookline Bancorp CEO Disposes Shares Post-Merger

William C. Tsonos, CEO of Bank Rhode Island, reported the disposition of 38,017 Brookline Bancorp shares following its merger with Berkshire Hills Bancorp.

Summary

• William C. Tsonos, CEO of Bank Rhode Island and an officer of Brookline Bancorp, Inc., reported a change in beneficial ownership.
• On September 1, 2025, 38,017 shares of Brookline Bancorp common stock were disposed of.
• This disposition occurred as a result of the merger between Brookline Bancorp, Inc. and Berkshire Hills Bancorp, Inc.
• Each share of Brookline Bancorp common stock was converted into the right to receive 0.42 shares of Berkshire common stock, plus cash for any fractional shares.
• Following the transaction, William C. Tsonos beneficially owns 0 shares of Brookline Bancorp common stock.

Sentiment

Score: 7

Explanation: The filing reports the successful completion of a merger, which is generally a positive event for the acquiring company and a planned exit for the acquired company's shareholders. The transaction itself is a neutral reporting event for the insider, but the underlying merger is a significant corporate action.

Positives

• The completion of the merger indicates a successful strategic transaction for Brookline Bancorp shareholders, converting their shares into Berkshire Hills Bancorp stock.
• The defined exchange ratio of 0.42 shares of Berkshire common stock per Brookline share provides clarity on the transaction terms.

Negatives

• The reporting person, William C. Tsonos, no longer holds direct beneficial ownership in Brookline Bancorp, Inc.

Risks

• The filing itself does not detail risks, but the conversion of shares means the reporting person's investment is now subject to the risks associated with Berkshire Hills Bancorp, Inc.

Future Outlook

The filing indicates the successful completion of a previously announced merger, which means Brookline Bancorp, Inc. no longer exists as an independent entity for its common stock holders. The future outlook for former Brookline shareholders is now tied to Berkshire Hills Bancorp, Inc.

Industry Context

This transaction reflects the ongoing consolidation trend within the regional banking sector, where smaller institutions merge with larger ones to achieve economies of scale, expand market reach, and enhance competitive positioning. Such mergers are often driven by regulatory pressures, technological investment needs, and the pursuit of greater operational efficiency.

Comparison to Industry Standards

• The merger exchange ratio of 0.42 shares of Berkshire Hills Bancorp for each Brookline Bancorp share is a specific term of this particular transaction. Without the full merger agreement or market data at the time of announcement, it is difficult to compare this specific ratio to industry standards.
• However, similar regional bank mergers, such as the recent acquisition of People's United Financial by M&T Bank or the merger of First Horizon and TD Bank (though the latter was terminated), often involve stock-for-stock exchanges with specific premiums or discounts based on market valuations and strategic synergies.

Stakeholder Impact

• Shareholders (Brookline): Their shares have been converted into Berkshire Hills Bancorp stock, meaning their investment is now in the combined entity.
• Shareholders (Berkshire Hills): The merger expands their company's operations and potentially its market share.
• Employees (Brookline/Bank Rhode Island): While not explicitly stated, mergers often lead to organizational restructuring and potential changes for employees.

Next Steps

• Former Brookline Bancorp shareholders will now hold shares in Berkshire Hills Bancorp, Inc.
• William C. Tsonos's future beneficial ownership changes will be reported in relation to Berkshire Hills Bancorp, Inc. if applicable.

Key Dates

Keywords

Brookline Bancorp, BRKL, Berkshire Hills Bancorp, Merger, Acquisition, Form 4, Insider Trading, Beneficial Ownership, William C. Tsonos, Bank Rhode Island, Financial Services, Banking