Amendment to Statement of Changes in Beneficial Ownership (Form 4/A)

FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b). Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940

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(Print or Type Responses)

1. Name and Address of Reporting Person * MASON MARK K 2. Issuer Name and Ticker or Trading Symbol Mechanics Bancorp [MCHB] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner _____ Officer (give title below) __X__ Other (specify below) Consultant (Last) (First) (Middle) 1111 CIVIC DRIVE, SUITE 390 3. Date of Earliest Transaction (Month/Day/Year) 09/02/2025 (Street) WALNUT CREEK, CA 94596 4. If Amendment, Date Original Filed (Month/Day/Year) 09/04/2025 6. Individual or Joint/Group Filing (Check Applicable Line) _X_ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person (City) (State) (Zip) Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned

1.Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock 09/02/2025 A 14,848(1) A $ 0 (2) 213,196 D Common Stock 09/02/2025 F 5,843(3) D $13.87 207,353 D Common Stock 09/02/2025 A 33,333(1) A $ 0 (4) 240,686 D Common Stock 09/02/2025 F 13,117(5) D $13.87 227,569 D Common Stock 2,800(6) I Courtney Mason, Mr. Mason's spouse

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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 3)

2. Conversion or Exercise Price of Derivative Security

3. Transaction Date (Month/Day/Year)

3A. Deemed Execution Date, if any (Month/Day/Year)

4. Transaction Code (Instr. 8)

5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5)

6. Date Exercisable and Expiration Date (Month/Day/Year)

7. Title and Amount of Underlying Securities (Instr. 3 and 4)

8. Price of Derivative Security (Instr. 5)

9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)

10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)

11. Nature of Indirect Beneficial Ownership (Instr. 4)

Code

V

(A)

(D)

Date Exercisable

Expiration Date

Title

Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
MASON MARK K 1111 CIVIC DRIVE SUITE 390 WALNUT CREEK, CA 94596				Consultant

Signatures

/s/ Mark K. Mason		12/18/2025
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 4(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1)	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 by unpaid dividends on the PSUs. In the merger, HomeStreet, Inc. was renamed to Mechanics Bancorp.
(2)	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.
(3)	This amendment is being filed to correct the number of shares withheld by the Issuer in payment of the withholding tax liability incurred upon the above-reported settlement of PSUs. It was previously reported that the Issuer withheld 6,430 shares of the Issuer Class A common stock upon vesting of a PSU award granted on January 1, 2023, when in fact the number of shares withheld was 5,843 shares.
(4)	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.
(5)	This amendment is being filed to correct the number of shares withheld by the Issuer in payment of the withholding tax liability incurred upon the above-reported settlement of PSUs. It was previously reported that the Issuer withheld 14,434 shares of the Issuer Class A common stock upon vesting of a PSU award granted on January 1, 2024, when in fact the number of shares withheld was 13,117 shares.
(6)	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.

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