[Form 4] California BanCorp Insider Trading Activity

Rhea-AI Filing Summary

Stephen A. Cortese, a director of California BanCorp (BCAL), received 1,214 restricted stock units (RSUs) as board compensation on 08/21/2025 that vest in full on that date and have a $0.00 purchase price. After the reported grant, the filing shows Mr. Cortese directly beneficially owns 347,445 shares and indirectly beneficially owns 44,645 shares through the Cortese Trust and 2,086 shares through Cortese Real Property LP. The Form 4 was signed by a power of attorney on 08/22/2025.

Insights

Financial Analyst

TL;DR: Routine director compensation in the form of RSUs; increases director alignment with shareholders without cash outlay.

The Form 4 documents an award of 1,214 RSUs to director Stephen A. Cortese that vest on 08/21/2025 and carry a reported price of $0.00, consistent with equity-based compensation for board service. The filing also discloses his total beneficial ownership: 347,445 shares direct and incremental indirect holdings totaling 46,731 shares. This is a standard non-derivative issuance and appears immaterial to company capital structure given the absolute RSU count relative to disclosed holdings.

Corporate Governance Expert

TL;DR: Disclosure aligns with Section 16 reporting—shows timely reporting of equity awarded to a director.

The Form 4 presents required details: reporting person identity, relationship as a director, transaction date 08/21/2025, and an explanatory remark that RSUs were issued for board service and will vest on that date. The form was executed by POA on 08/22/2025. All material fields required for a Section 16 filing appear provided and the nature of indirect ownership is identified (trust and LP).

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
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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^*

Cortese Stephen A.

(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)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
08/21/2025

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	08/21/2025		A		1,214(1)	A	$0.00	347,445	D
Common Stock								44,645	I	A Cortese & S Cortese TTEE Cortese Trust U/A DTD 8/20/2013
Common Stock								2,086	I	Cortese Real Property LP

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. Represents restricted stock units ("RSUs") issued to the Reporting Person as consideration for service on the Issuer's Board of Directors. Shares will be issued in full upon vesting on August 21, 2025.

Remarks:

	Manisha Merchant, by POA for Stephen Cortese	08/22/2025
	** 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.