California BanCorp COO sells 93 shares at $21.51

After the tax-liability disposition, Michelle Wirfel's reported direct holdings were 86,290 shares.

Rhea-AI Filing Summary

California BanCorp (BCAL) EVP, Chief Operating Officer Michelle Wirfel reported a disposition of 93 common shares on September 21, 2026, to satisfy tax liability from vesting of a previously granted award. The reported price was $21.51 per share; her direct holdings following the transaction were 86,290 shares. No Rule 10b5-1 plan is reported.

Insider Trade Summary

Tax Withholding: 93 shares

Tax Withholding 1 txn

Insider Wirfel Michelle

Role EVP, Chief Operating Officer

Type	Security	Shares	Price	Value
Tax Withholding	Common Stock F1	93	$21.51	$2K

Holdings After Transaction: Common Stock — 86,289.93 shares (Direct)

Footnotes (1)

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

Key Figures

Shares disposed for tax liability: 93 shares Reported price per share: $21.51 per share Direct holdings following transaction: 86,290 shares

3 metrics

Shares disposed for tax liability 93 shares September 21, 2026

Reported price per share $21.51 per share September 21, 2026 disposition

Direct holdings following transaction 86,290 shares Following the September 21, 2026 transaction

Key Terms

tax liability, vesting, previously granted award

3 terms

tax liability financial

"disposed to satisfy the Reporting Person's tax liability"

vesting financial

"by the vesting of a previously granted award"

Vesting is the process by which you earn full ownership of something, like company stock or a retirement benefit, over time. It’s like earning the right to keep a gift piece by piece the longer you stay with a company, making sure employees stay committed before they receive all the benefits.

previously granted award financial

"vesting of a previously granted award"

FAQ

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

What did California BanCorp (BCAL) COO Michelle Wirfel report?

Michelle Wirfel reported that 93 common shares were disposed on September 21, 2026, to satisfy tax liability from vesting of a previously granted award.

Why were 93 BCAL shares disposed?

The shares were disposed to satisfy the reporting person's tax liability by the vesting of a previously granted award.

What price was reported for Michelle Wirfel's BCAL transaction?

The reported price was $21.51 per share for the 93-share disposition.

How many BCAL shares did Michelle Wirfel hold after the transaction?

Her reported direct holdings following the transaction were 86,290 shares.

Was Michelle Wirfel's BCAL transaction reported under a Rule 10b5-1 plan?

No Rule 10b5-1 plan is reported for the transaction.

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

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Available on EDGAR 09/23/2026 - 02:41 PM Accepted by SEC EDGAR 09/23/2026 - 02:40 PM Learn about SEC filing dates

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 CALIFORNIA 90071

(City) (State) (Zip)

UNITED STATES

(Country)

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
09/21/2026

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

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

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

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	09/21/2026		F(1)		93	D	$21.51	86,289.93	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)
				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, by POA for Michele Wirfel	09/23/2026
	** 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.
* Form 4: SEC 1474 (03-26)