California BanCorp (BCAL) COO uses shares to cover tax liability

Rhea-AI Filing Summary

California BanCorp EVP and COO Michelle Wirfel reported a tax-withholding disposition of 1,407 shares of common stock on August 2, 2026 at $21.30 per share, covering tax liability from the vesting of a previously granted award. After this transaction, she directly holds 86,382.93 shares. The filing indicates this was not made pursuant to a Rule 10b5-1 trading plan.

Insider Trade Summary

Net Seller: 1,407 shares

Net Sell 1 txn

Insider Wirfel Michelle

Role EVP, Chief Operating Officer

Type	Security	Shares	Price	Value
Tax Withholding	Common Stock F1	1,407	$21.30	$30K

Holdings After Transaction: Common Stock — 86,382.93 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 taxes: 1,407 shares Per-share value for tax withholding: $21.30 per share Shares held after transaction: 86,382.93 shares

3 metrics

Shares disposed for taxes 1,407 shares Tax-withholding disposition of common stock on August 2, 2026

Per-share value for tax withholding $21.30 per share Value used to satisfy the Reporting Person's tax liability

Shares held after transaction 86,382.93 shares Direct common stock holdings following the tax-withholding disposition

Key Terms

tax liability, vesting, previously granted award

3 terms

tax liability financial

"Shares disposed to satisfy the Reporting Person's tax liability by the vesting"

vesting financial

"Shares disposed to satisfy the Reporting Person's tax liability by the vesting"

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

"by the vesting of a previously granted award"

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

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Form 4 Insider Transactions: What Each Field Means →

Available on EDGAR 08/03/2026 - 08:17 PM Accepted by SEC EDGAR 08/03/2026 - 08:16 PM Learn about SEC filing dates

FAQ

What insider transaction did BCAL executive Michelle Wirfel report?

Michelle Wirfel, EVP and COO of California BanCorp (BCAL), reported a tax-withholding disposition of 1,407 common shares at $21.30 per share on August 2, 2026. The shares were delivered to satisfy her tax liability on a previously granted award’s vesting.

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

Following the reported tax-withholding disposition, Michelle Wirfel directly holds 86,382.93 shares of California BanCorp (BCAL) common stock. This figure reflects her direct ownership position immediately after the August 2, 2026 transaction disclosed in the Form 4.

Was Michelle Wirfel’s BCAL share disposition a market sale?

No. The Form 4 states the 1,407 BCAL shares were disposed of to cover the Reporting Person’s tax liability upon vesting of a prior award. This indicates a tax-withholding disposition rather than an open market sale to third-party investors.

What price per share was used in Michelle Wirfel’s BCAL tax-withholding transaction?

The transaction used a value of $21.30 per California BanCorp (BCAL) share for the 1,407 shares withheld. This per-share amount is used solely to determine the value of stock delivered to satisfy the Reporting Person’s tax obligations.

Was the BCAL insider transaction reported by Michelle Wirfel under a Rule 10b5-1 plan?

The filing’s Rule 10b5-1 checkbox is unchecked, indicating the transaction was not made pursuant to a Rule 10b5-1 trading plan. It is instead characterized as a tax-withholding disposition tied to an equity award’s vesting.

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)
08/02/2026

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	08/02/2026		F(1)		1,407	D	$21.3	86,382.93	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	08/03/2026
	** 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)