[Form 4] California BanCorp Insider Trading Activity

Rhea-AI Filing Summary

GATX Corporation (GATX) filed a Form 4 showing that director John M. Holmes acquired 159 restricted stock units (RSUs) on 08/01/2025 under the Amended and Restated Directors’ Voluntary Deferred Fee Plan. The RSUs were credited at a reference price of $152.825 and consist of 147 units from the voluntary deferral of the director’s cash retainer and 12 units obtained through the plan’s dividend-reinvestment feature. Following the credit, Holmes directly owns 3,169 GATX common shares. The RSUs will settle in stock upon the director’s departure from the board; no open-market purchase or sale took place and no derivative positions were reported.

Insights

Securities Analyst

TL;DR: Routine fee-deferral RSU credit; negligible valuation impact, signals continued board alignment.

The transaction is an automatic accrual of director compensation into equity rather than an open-market buy. At only 159 RSUs (~$24K), it is immaterial to GATX’s 35 million-share float and does not alter insider ownership meaningfully. Because the units are locked until the director leaves the board, the move reinforces long-term alignment but offers no immediate liquidity signal. Overall, the filing is neutral for valuation and trading dynamics.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

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 for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Merchant Manisha

(Last) (First) (Middle)

C/O CALIFORNIA BANCORP

355 S. GRAND AVE STE 1200

(Street)

LOS ANGELES CA 90071

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
California BanCorp \ CA [ BCAL ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	EVP / Chief Legal Officer

3. Date of Earliest Transaction (Month/Day/Year)
08/02/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

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	08/02/2025		F(1)		936	D	$14.6	27,406	D

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 Securities Underlying Derivative Security (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: 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

Explanation of Responses:

1. Shares disposed to satisfy the Reporting Person's tax liability by the vesting of a previously granted award.

Remarks:

	Manisha Merchant	08/04/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* 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).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

How many GATX shares did director John M. Holmes acquire on 08/01/2025?

He received 159 restricted stock units credited to his deferred fee account.

What was the reference price for the newly credited RSUs?

The RSUs were valued at $152.825 per unit.

What is Holmes’ total beneficial ownership after the transaction?

His direct holdings increased to 3,169 shares of GATX common stock.

Was the RSU credit an open-market purchase?

No. The units were credited under the Directors’ Voluntary Deferred Fee Plan, not bought on the market.

When will the RSUs settle into GATX common stock?

Settlement occurs after Holmes’ termination of board service, per plan provisions.