Mechanics Bancorp — Director's Dealing 2026

Jan 6, 2026

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Mechanics Bancorp (MCHB)
CIK: 0001518715
Period of Report: 2025-09-02

Reporting Person: Pierce Christopher D (EVP & Chief Operating Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2025-09-02	Class A Common Stock	A	11262	—	Acquired	11262	Direct
2025-09-26	Class A Common Stock	A	21818	—	Acquired	33080	Direct
2025-12-31	Class A Common Stock	F	4903	$14.63	Disposed	28177	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2025-09-02	Incentive Units - Not Deferred (2024)	$	A	13742	Acquired		Class A Common Stock (13742)	Direct

Footnotes

F1: Received in exchange for an aggregate of 3.41 shares of Mechanics Bank ("MB") original voting common stock and MB restricted stock units in connection with the merger of HomeStreet Bank, a wholly owned subsidiary of Issuer, with and into MB, pursuant to which MB continued as the surviving corporation and as a wholly owned subsidiary of Issuer (the "Merger").

F2: As consideration for the Merger, (i) each share of MB voting common stock converted into the right to receive 3,301.0920 shares of Issuer Class A Common Stock, which, on the effective date of the Merger, had a closing price of $13.87 per share, (ii) each MB restricted stock unit of the Reporting Person converted into restricted stock units of Issuer for the right to receive 3,301.0920 shares of Issuer Class A Common Stock, and (iii) each MB incentive unit of the Reporting Person converted into incentive units of Issuer of the economic equivalent of 3,301.0920 shares of Issuer Class A Common Stock.

F3: Each incentive unit is the economic equivalent of one share of Issuer Class A Common Stock.

F4: The incentive units vest in three equal annual installments beginning February 15, 2026.