California BanCorp COO reports tax share disposition

California BanCorp EVP and COO Michelle Wirfel reported a routine tax-related share disposition.

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Rhea-AI Filing Summary

California BanCorp EVP and COO Michelle Wirfel reported a routine tax-related share disposition. On the vesting of a prior equity award, 635 shares of common stock were automatically withheld and disposed of at $17.96 per share to satisfy her tax liability. After this non‑market transaction, she directly holds 88,839.93 shares of California BanCorp common stock.

Insider Trade Summary

Exercise Price or Tax Liability: 635 shares

Exercise Price or Tax Liability 1 txn

Insider Wirfel Michelle

Role EVP, Chief Operating Officer

Type	Security	Shares	Price	Value
Exercise Price or Tax Liability	Common Stock	635	$17.96	$11K

Holdings After Transaction: Common Stock — 88,839.93 shares (Direct)

Footnotes (1)

F1. Shares disposed to satisfy the Reporting Person's tax liability by the vesting of a previously granted award.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transaction did California BanCorp (BCAL) report for Michelle Wirfel?

California BanCorp reported that EVP and COO Michelle Wirfel had 635 common shares withheld and disposed of at $17.96 per share. The shares were used to cover taxes due upon vesting of a previously granted equity award.

Was Michelle Wirfel’s California BanCorp (BCAL) transaction an open-market sale?

No, the transaction was not an open-market sale. The filing describes an F‑code tax-withholding disposition, where 635 vested shares were automatically delivered to satisfy her tax liability rather than sold at her discretion in the open market.

How many California BanCorp (BCAL) shares does Michelle Wirfel hold after this Form 4?

Following the tax-withholding disposition, Michelle Wirfel directly holds 88,839.93 shares of California BanCorp common stock. This indicates the withheld 635 shares represent a small portion of her overall direct equity position in the company.

What does transaction code F mean in the California BanCorp (BCAL) Form 4?

Transaction code F indicates payment of an exercise price or tax liability by delivering securities. In this case, 635 California BanCorp shares from a vested award were disposed of to satisfy Michelle Wirfel’s tax obligation related to that vesting event.

What role does Michelle Wirfel hold at California BanCorp (BCAL) in this insider filing?

In the Form 4, Michelle Wirfel is identified as an officer of California BanCorp, serving as Executive Vice President and Chief Operating Officer. Her reported transaction relates to equity compensation previously granted in connection with her executive role.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 03/10/2026 - 07:57 PM

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^*

Wirfel Michelle

(Last)

(First)

(Middle)

C/O CALIFORNIA BANCORP

355 S. GRAND AVE STE 1200

(Street)

LOS ANGELES

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 Operating Officer

3. Date of Earliest Transaction (Month/Day/Year)
03/08/2026

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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	03/08/2026		F⁽¹⁾		635	D	$17.96	88,839.93	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)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)

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, by POA for Michele Wirfel	03/10/2026
	** 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.

Source: View Original Filing on SEC EDGAR