California BanCorp (BCAL) director awarded 3,196 RSU shares and updates holdings

Rhea-AI Filing Summary

California BanCorp director Frank L. Muller reported routine equity compensation and ownership updates. On June 1, 2026 he received 3,196 shares of Common Stock as a grant or award for his service on the Board, at a stated price of $0.00 per share. These represent restricted stock units that are scheduled to vest in full on June 1, 2027, when shares will be issued. A January 16, 2026 entry reflects 28.43 shares acquired through reinvestment of cash dividends. After these updates, he holds 37,933.43 shares directly and 1,927 shares indirectly through his spouse.

Insights

Equity compensation and governance analyst

Filing shows routine director equity awards and dividend reinvestment, not open-market trading.

The filing for California BanCorp director Frank L. Muller centers on a grant of 3,196 Common Stock shares at $0.00 per share as board compensation, plus 28.43 shares from cash dividend reinvestment. No open‑market purchases or sales are reported.

These restricted stock units vest on June 1, 2027, aligning director incentives with long‑term shareholder outcomes. Following these entries, direct holdings total 37,933.43 shares, with an additional 1,927 shares held indirectly by his spouse, indicating the transactions are modest relative to overall ownership.

Insider Trade Summary

Net Buyer: 3,224.43 shares

Net Buy 3 txns

Insider Muller Frank L.

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	3,196	$0.00	$0.00
holding	Common Stock	--	--	--
Other	Common Stock	28.43	$18.89	$537.04

Holdings After Transaction: Common Stock — 37,933.43 shares (Direct); Common Stock — 1,927 shares (Indirect, By spouse)

Footnotes (2)

1. F1. Reinvestment of cash dividends on January 16, 2026.
2. F2. 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, which is scheduled to occur on June 1, 2027.

Key Figures

Director equity grant: 3,196 shares RSU vesting date: June 1, 2027 Dividend reinvestment shares: 28.43 shares +3 more

6 metrics

Director equity grant 3,196 shares Common Stock grant on June 1, 2026 at $0.00/share

RSU vesting date June 1, 2027 Scheduled vesting of RSUs issued for board service

Dividend reinvestment shares 28.43 shares Reinvestment of cash dividends on January 16, 2026 at $18.89/share

Direct holdings after grant 37,933.43 shares Total Common Stock directly owned following June 1, 2026 grant

Indirect holdings by spouse 1,927 shares Common Stock held indirectly through spouse as of June 1, 2026

Dividend reinvestment price $18.89/share Price used for 28.43-share cash dividend reinvestment on January 16, 2026

Key Terms

restricted stock units ("RSUs"), reinvestment of cash dividends, Board of Directors, indirect ownership

4 terms

restricted stock units ("RSUs") financial

"Represents restricted stock units ("RSUs") issued to the Reporting Person as consideration for service on the Issuer's Board of Directors."

Restricted stock units (RSUs) are a company promise to give an employee shares of stock (or cash equivalent) in the future, but only after certain conditions—usually staying with the company for a set time or hitting performance goals—are met. Investors watch RSUs because when they vest they increase the number of shares outstanding and can lead insiders to sell shares, affecting share price, company dilution and the true cost of employee pay.

reinvestment of cash dividends financial

"Reinvestment of cash dividends on January 16, 2026."

Board of Directors financial

"issued to the Reporting Person as consideration for service on the Issuer's Board of Directors."

The Board of Directors is a group of people chosen by a company's owners to help make big decisions and oversee how the company is run. They act like a team of advisors or managers, making sure the company stays on track and meets its goals. Their choices can influence the company's success and how it grows.

indirect ownership financial

"total_shares_following_transaction": "1927.0000", "direct_or_indirect": "I", "nature_of_ownership": "By spouse""

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 06/03/2026 - 07:53 PM Accepted by SEC EDGAR 06/03/2026 - 07:53 PM Learn about SEC filing dates

FAQ

What did California BanCorp (BCAL) director Frank L. Muller report in this Form 4?

Frank L. Muller reported a grant of 3,196 shares of Common Stock as equity compensation and a small dividend reinvestment. The filing also updates his direct and indirect shareholdings, without showing any open‑market stock purchases or sales.

How many California BanCorp (BCAL) shares did Muller receive as a board compensation grant?

Muller received 3,196 shares of Common Stock at a stated price of $0.00 per share as a grant or award. These represent restricted stock units issued as consideration for his service on the company’s Board of Directors.

When do Frank L. Muller’s California BanCorp (BCAL) RSUs vest?

The restricted stock units granted to Frank L. Muller are scheduled to vest in full on June 1, 2027. Upon vesting, shares of Common Stock will be issued to him according to the terms described in the Form 4 footnote.

How many California BanCorp (BCAL) shares does Frank L. Muller hold after these transactions?

After these transactions, Muller holds 37,933.43 shares of California BanCorp Common Stock directly. He also has 1,927 shares reported as indirectly owned through his spouse, according to the ownership details in the Form 4.

What is the January 16, 2026 transaction in Frank L. Muller’s California BanCorp (BCAL) Form 4?

The January 16, 2026 transaction reflects 28.43 shares of Common Stock at $18.89 per share. A footnote explains this entry as a reinvestment of cash dividends, rather than an open‑market stock purchase or sale.

Does this California BanCorp (BCAL) Form 4 show any insider stock sales by Frank L. Muller?

The Form 4 does not report any open‑market stock sales by Frank L. Muller. It records a director equity grant, a dividend reinvestment transaction, and updated direct and indirect ownership positions in California BanCorp Common Stock.

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^*

Muller Frank L.

(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)

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/01/2026

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	01/16/2026		J(1)		28.43	A	$18.89	34,737.43	D
Common Stock	06/01/2026		A(2)		3,196	A	$0.00	37,933.43	D
Common Stock								1,927	I	By spouse

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. Reinvestment of cash dividends on January 16, 2026.

2. 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, which is scheduled to occur on June 1, 2027.

Remarks:

	Manisha Merchant, as attorney in fact for Muller Frank	06/03/2026
	** 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)