Mark K. Mason - Sep 2, 2025 Form 4 Insider Report for Mechanics Bancorp (MCHB)

Role
CEO, President, Director
Signature
/s/ Godfrey B. Evans, Attorney-in-Fact for Mark K. Mason
Stock symbol
MCHB
Transactions as of
Sep 2, 2025
Transactions value $
-$289,384
Form type
4
Date filed
9/4/2025, 09:28 PM
Previous filing
Jan 3, 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
MASON MARK K CEO, President, Director 1111 CIVIC DRIVE, SUITE 390, WALNUT CREEK /s/ Godfrey B. Evans, Attorney-in-Fact for Mark K. Mason 2025-09-04 0001396928

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction MCHB Common Stock Award $0 +14.8K +7.49% $0.00 213K Sep 2, 2025 Direct F1, F2
transaction MCHB Common Stock Tax liability -$89.2K -6.43K -3.02% $13.87 207K Sep 2, 2025 Direct F3
transaction MCHB Common Stock Award $0 +33.3K +16.12% $0.00 240K Sep 2, 2025 Direct F1, F4
transaction MCHB Common Stock Tax liability -$200K -14.4K -6.01% $13.87 226K Sep 2, 2025 Direct F3
holding MCHB Common Stock 2.8K Sep 2, 2025 Courtney Mason, Mr. Mason's spouse F5
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Mark K. Mason is no longer subject to Section 16 filing requirements. Form 4 or Form 5 obligations may continue.

Explanation of Responses:

Id Content
F1 Reflects shares of Issuer Class A common stock received upon vesting of performance stock units ("PSUs"). Pursuant to the Agreement and Plan of Merger, dated as of March 28, 2025, among HomeStreet, Inc., HomeStreet Bank, a subsidiary of HomeStreet, Inc., and Mechanics Bank, at the effective time of the merger on September 2, 2025, each outstanding PSU held by the Reporting Person was accelerated and entitled the Reporting Person to receive shares of Issuer Class A common stock, plus a cash amount for any accrued but unpaid dividends on the PSUs. In the merger, HomeStreet, Inc. was renamed Mechanics Bancorp.
F2 Shares of Issuer Class A common stock were issued to the Reporting Person without payment of any consideration in connection with the vesting of a PSU award granted to the Reporting Person on January 1, 2023. The number of shares issued on the vesting of the PSU was determined based on the achievement of certain performance factors set forth in the PSU. The unvested portion of the PSU was cancelled.
F3 Shares withheld by the Issuer in payment of the withholding tax liability incurred upon the above-reported settlement of PSUs.
F4 Shares of Issuer Class A common stock were issued to the Reporting Person without payment of any consideration in connection with the vesting of a PSU award granted to the Reporting Person on January 1, 2024. The number of shares issued on the vesting of the PSU was determined based on the achievement of certain performance factors set forth in the PSU. The unvested portion of the PSU was cancelled.
F5 These shares are owned by the Reporting Person's spouse. Mr. Mason disclaims beneficial ownership of these shares except to the extent of any pecuniary interest he may have therein.

Remarks:

The Reporting Person resigned as an officer of HomeStreet, Inc. in accordance with the terms of the Agreement and Plan of Merger, with such resignation effective as of the effective time of the merger on September 2, 2025. As a result, the Reporting Person is no longer subject to Section 16 in connection with his transactions in the equity securities of the Issuer and therefore no further transactions on Form 4 or Form 5 will be reported.