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person · Reporting owner

Muller Frank L.

Disclosed activity across 2 companies

Tapewire entity
41772
SEC CIK
0001807551

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
California BanCorp \ CABCAL · Entity 5250DirectorSeptember 04, 2026September 10, 2026

Disclosed balances

About these balances

Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.

California BanCorp \ CA

Report date September 04, 2026 · Filed September 10, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeIndirectBy spouse2,377 Reported balance After 2026-09-04 transaction · row 1 Account identity is unresolved; indirect or unspecified ownership is not merged.
1 source row

Row 1 · 2026-09-04 · Purchase · Acquired 450 · Balance 2,377

Common StockSEC Table I · non-derivativeDirect37,933.43 Reported balance Holding disclosure · report date 2026-09-04 · row 2 Holding and transaction disclosures are not merged.
1 source row

Row 2 · Balance 37,933.43

Past disclosures · reporting ended (1)

No longer tracked through insider filings. These historical balances do not imply present ownership or a zero position.

California BanCorp

Report date July 31, 2024 · Filed July 31, 2024

Section 16 reporting ended · disclosed 2024-07-31. Current position is not established by this disclosure.

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect0 Reported balance After 2024-07-31 transaction · row 1
1 source row

Row 1 · 2024-07-31 · Disposition to issuer · Disposed 18,718 · Balance 0

F1: Disposed of pursuant to the Agreement and Plan of Merger and Reorganization, dated January 31, 2024 (the "Merger Agreement"), by and between the Issuer and Southern California Bancorp ("BCAL"). Pursuant to the terms of the Merger Agreement, at the effective time of the merger, each share of Issuer common stock converted into the right to receive 1.590 shares of BCAL common stock (the "Exchange Ratio"), with cash paid in lieu of fractional shares. As a result of the merger, the reporting person no longer beneficially owns, directly or indirectly, any shares of Issuer common stock.

F2: Includes restricted stock units with respect to 1,399 shares of the Issuer's common stock. Pursuant to the Merger Agreement, at the effective time of the merger, the restricted stock units were assumed by BCAL and converted into a restricted stock units with respect to a number of shares of BCAL common stock equal to the number of issuer shares underlying the restricted stock unit multiplied by the Exchange Ratio.

Filing footnotes · ownership attribution and instrument terms

F1: Disposed of pursuant to the Agreement and Plan of Merger and Reorganization, dated January 31, 2024 (the "Merger Agreement"), by and between the Issuer and Southern California Bancorp ("BCAL"). Pursuant to the terms of the Merger Agreement, at the effective time of the merger, each share of Issuer common stock converted into the right to receive 1.590 shares of BCAL common stock (the "Exchange Ratio"), with cash paid in lieu of fractional shares. As a result of the merger, the reporting person no longer beneficially owns, directly or indirectly, any shares of Issuer common stock.

F2: Includes restricted stock units with respect to 1,399 shares of the Issuer's common stock. Pursuant to the Merger Agreement, at the effective time of the merger, the restricted stock units were assumed by BCAL and converted into a restricted stock units with respect to a number of shares of BCAL common stock equal to the number of issuer shares underlying the restricted stock unit multiplied by the Exchange Ratio.

Transaction history

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Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction dateCompanyActivity / securityShares / unitsReported priceReported valueDetails
September 04, 2026 Filed Sep 10, 2026 00:07 UTC California BanCorp \ CA BCAL · Entity 5250 PurchaseCommon Stock 450 $22.13 $9,958.50
Disclosure

SEC source: 0001807551-26-000004 · primarydocument.xml · nonDerivative · entry 1

Muller Frank L. · CIK 0001807551 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By spouse

Disclosed balance after: 2,377

Read SEC document
June 01, 2026 Filed Jun 3, 2026 23:53 UTC California BanCorp \ CA BCAL · Entity 5250 GrantCommon Stock 3,196 $0.00 $0.00
Disclosure

SEC source: 0001807551-26-000002 · primarydocument.xml · nonDerivative · entry 2

Muller Frank L. · CIK 0001807551 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 37,933.43

F2 · kind: 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.

Read SEC document
January 16, 2026 Filed Jun 3, 2026 23:53 UTC California BanCorp \ CA BCAL · Entity 5250 OtherCommon Stock 28.43 $18.89 $537.04
Disclosure

SEC source: 0001807551-26-000002 · primarydocument.xml · nonDerivative · entry 1

Muller Frank L. · CIK 0001807551 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 34,737.43

F1 · kind: Reinvestment of cash dividends on January 16, 2026.

Read SEC document
May 21, 2025 Filed May 23, 2025 23:47 UTC California BanCorp \ CA BCAL · Entity 5250 GrantCommon Stock 3,729 $0.00 $0.00
Disclosure

SEC source: 0001562180-25-004165 · primarydocument.xml · nonDerivative · entry 1

Muller Frank L. · CIK 0001807551 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 34,709

F1 · shares: 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 May 21, 2026.

Read SEC document
August 08, 2024 Filed Aug 13, 2024 01:49 UTC California BanCorp \ CA BCAL · Entity 5250 GrantCommon Stock 3,146 $0.00 $0.00
Disclosure

SEC source: 0001562180-24-006177 · primarydocument.xml · nonDerivative · entry 1

Muller Frank L. · CIK 0001807551 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 30,980

F1 · shares: 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 May 30, 2025.

Read SEC document
July 31, 2024 Filed Jul 31, 2024 21:26 UTC California BanCorp CALB · Entity 88623 Disposition to issuerCommon Stock 18,718 $0.00 $0.00
Disclosure

SEC source: 0000950170-24-088728 · ownership.xml · nonDerivative · entry 1

Muller Frank L. · CIK 0001807551 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

F1 · shares: Disposed of pursuant to the Agreement and Plan of Merger and Reorganization, dated January 31, 2024 (the "Merger Agreement"), by and between the Issuer and Southern California Bancorp ("BCAL"). Pursuant to the terms of the Merger Agreement, at the effective time of the merger, each share of Issuer common stock converted into the right to receive 1.590 shares of BCAL common stock (the "Exchange Ratio"), with cash paid in lieu of fractional shares. As a result of the merger, the reporting person no longer beneficially owns, directly or indirectly, any shares of Issuer common stock.

F2 · shares: Includes restricted stock units with respect to 1,399 shares of the Issuer's common stock. Pursuant to the Merger Agreement, at the effective time of the merger, the restricted stock units were assumed by BCAL and converted into a restricted stock units with respect to a number of shares of BCAL common stock equal to the number of issuer shares underlying the restricted stock unit multiplied by the Exchange Ratio.

Read SEC document
July 18, 2024 Filed Jul 22, 2024 23:24 UTC California BanCorp CALB · Entity 88623 GrantCommon Stock 1,399 $0.00 $0.00
Disclosure

SEC source: 0000950170-24-085392 · ownership.xml · nonDerivative · entry 1

Muller Frank L. · CIK 0001807551 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 18,718

F1 · shares: Represents annual grant of restricted stock units.

Read SEC document
February 01, 2024 Filed Feb 5, 2024 21:30 UTC California BanCorp CALB · Entity 88623 GrantCommon Stock 362 $24.89 $9,010.18
Disclosure

SEC source: 0000950170-24-011272 · ownership.xml · nonDerivative · entry 1

Muller Frank L. · CIK 0001807551 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 17,319

F1 · shares: These shares were issued to the reporting person under the issuer's Amended and Restated 2017 Equty Incentive Plan in lieu of director retainer and meeting fees.

Read SEC document
October 31, 2023 Filed Nov 2, 2023 20:30 UTC California BanCorp CALB · Entity 88623 GrantCommon Stock 440 $20.47 $9,006.80
Disclosure

SEC source: 0000950170-23-058276 · ownership.xml · nonDerivative · entry 1

Muller Frank L. · CIK 0001807551 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 16,957

F1 · shares: These shares were issued to the reporting person under the issuer's Amended and Restated 2017 Equty Incentive Plan in lieu of director retainer and meeting fees.

Read SEC document
August 01, 2023 Filed Aug 18, 2023 20:42 UTC California BanCorp CALB · Entity 88623 GrantCommon Stock 484 $18.60 $9,002.40
Disclosure

SEC source: 0000950170-23-043502 · ownership.xml · nonDerivative · entry 1

Muller Frank L. · CIK 0001807551 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 16,517

F1 · shares: These shares were issued to the reporting person under the issuer's Amended and Restated 2017 Equty Incentive Plan in lieu of director retainer and meeting fees of $9,000.

Read SEC document
May 18, 2023 Filed May 22, 2023 20:57 UTC California BanCorp CALB · Entity 88623 GrantCommon Stock 2,340 $0.00 $0.00
Disclosure

SEC source: 0000899243-23-013570 · doc4.xml · nonDerivative · entry 1

Muller Frank L. · CIK 0001807551 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 16,033

F1 · shares: Annual grant of restricted stock units. Vests in full on May 16, 2024, subject to the reporting person's continuous service.

Read SEC document
May 01, 2023 Filed May 4, 2023 00:18 UTC California BanCorp CALB · Entity 88623 GrantCommon Stock 544 $16.57 $9,014.08
Disclosure

SEC source: 0000899243-23-012163 · doc4.xml · nonDerivative · entry 1

Muller Frank L. · CIK 0001807551 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,693

F1 · shares: These shares were issued to the reporting person under the issuer's Amended and Restated 2017 Equty Incentive Plan in lieu of director retainer and meeting fees.

Read SEC document
January 31, 2023 Filed Feb 2, 2023 22:07 UTC California BanCorp CALB · Entity 88623 GrantCommon Stock 353 $25.47 $8,990.91
Disclosure

SEC source: 0000899243-23-003506 · doc4.xml · nonDerivative · entry 1

Muller Frank L. · CIK 0001807551 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,149

F1 · shares: These shares were issued to the reporting person under the issuer's Amended and Restated 2017 Equty Incentive Plan in lieu of director retainer and meeting fees of $9,000.

Read SEC document
November 01, 2022 Filed Nov 18, 2022 01:12 UTC California BanCorp CALB · Entity 88623 GrantCommon Stock 406 $22.22 $9,021.32
Disclosure

SEC source: 0000899243-22-036270 · doc4.xml · nonDerivative · entry 1

Muller Frank L. · CIK 0001807551 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 12,796

F1 · shares: These shares were issued to the reporting person under the issuer's Amended and Restated 2017 Equty Incentive Plan in lieu of director retainer and meeting fees of $9,000.

Read SEC document
August 02, 2022 Filed Aug 4, 2022 20:18 UTC California BanCorp CALB · Entity 88623 GrantCommon Stock 425 $21.18 $9,001.50
Disclosure

SEC source: 0000899243-22-027704 · doc4.xml · nonDerivative · entry 1

Muller Frank L. · CIK 0001807551 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 12,390

F1 · shares: These shares were issued to the reporting person under the issuer's Amended and Restated 2017 Equty Incentive Plan in lieu of director retainer and meeting fees of $9,000.

Read SEC document
June 16, 2022 Filed Jun 21, 2022 20:30 UTC California BanCorp CALB · Entity 88623 GrantCommon Stock 1,538 $0.00 $0.00
Disclosure

SEC source: 0000899243-22-023373 · doc4.xml · nonDerivative · entry 1

Muller Frank L. · CIK 0001807551 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,965

F1 · shares: Represents annual grant of restricted stock units. The restricted stock units vest on May 18, 2023, subject to the reporting person's continuous service.

Read SEC document
May 03, 2022 Filed May 5, 2022 20:00 UTC California BanCorp CALB · Entity 88623 GrantCommon Stock 414 $21.74 $9,000.36
Disclosure

SEC source: 0000899243-22-016808 · doc4.xml · nonDerivative · entry 1

Muller Frank L. · CIK 0001807551 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,427

F1 · shares: These shares were issued to the Reporting Person under the issuer's Amended and Restated 2017 Equty Incentive Plan in lieu of retainer and meeting fees of $9,000.

Read SEC document
February 01, 2022 Filed Feb 3, 2022 21:00 UTC California BanCorp CALB · Entity 88623 GrantCommon Stock 411 $21.95 $9,021.45
Disclosure

SEC source: 0000899243-22-004560 · doc4.xml · nonDerivative · entry 1

Muller Frank L. · CIK 0001807551 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,013

F1 · shares: These shares were issued to the Reporting Person under the issuer's Amended and Restated 2017 Equty Incentive Plan in lieu of retainer and meeting fees of $9,000.

Read SEC document
November 02, 2021 Filed Nov 4, 2021 18:29 UTC California BanCorp CALB · Entity 88623 GrantCommon Stock 497 $18.12 $9,005.64
Disclosure

SEC source: 0000899243-21-043015 · doc4.xml · nonDerivative · entry 1

Muller Frank L. · CIK 0001807551 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,602

F1 · shares: These shares were issued to the Reporting Person under the issuer's Amended and Restated 2017 Equty Incentive Plan in lieu of retainer and meeting fees of $9,000.

Read SEC document
August 02, 2021 Filed Aug 20, 2021 18:37 UTC California BanCorp CALB · Entity 88623 GrantCommon Stock 504 $17.86 $9,001.44
Disclosure

SEC source: 0000899243-21-033788 · doc4.xml · nonDerivative · entry 1

Muller Frank L. · CIK 0001807551 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,105

F1 · shares: These shares were issued to the Reporting Person under the issuer's Amended and Restated 2017 Equty Incentive Plan in lieu of retainer and meeting fees of $9,000.

Read SEC document
June 17, 2021 Filed Jun 22, 2021 00:27 UTC California BanCorp CALB · Entity 88623 GrantCommon Stock 1,397 $0.00 $0.00
Disclosure

SEC source: 0000899243-21-025149 · doc4.xml · nonDerivative · entry 2

Muller Frank L. · CIK 0001807551 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,601

F2 · shares: Represents restricted stock units that vest on June 30, 2022, subject to the Reporting Person's continuous service through the vesting date. Each restricted stock unit represents a contingent right to receive one share of Common Stock.

Read SEC document
June 17, 2021 Filed Jun 22, 2021 00:27 UTC California BanCorp CALB · Entity 88623 GrantCommon Stock 504 $17.89 $9,016.56
Disclosure

SEC source: 0000899243-21-025149 · doc4.xml · nonDerivative · entry 1

Muller Frank L. · CIK 0001807551 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,204

F1 · shares: These shares were issued to the Reporting Person under the issuer's Amended and Restated 2017 Equty Incentive Plan in lieu of retainer and meeting fees of $9,000.

Read SEC document
January 28, 2021 Filed Feb 2, 2021 00:02 UTC California BanCorp CALB · Entity 88623 GrantCommon Stock 685 $13.15 $9,007.75
Disclosure

SEC source: 0000899243-21-003895 · doc4.xml · nonDerivative · entry 1

Muller Frank L. · CIK 0001807551 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,700

F1 · price: These shares were issued to the reporting person under the issuer's Amended and Restated 2017 Equty Incentive Plan in lieu of retainer and meeting fees of $9,000.

Read SEC document
December 01, 2020 Filed Dec 3, 2020 18:37 UTC California BanCorp CALB · Entity 88623 GrantCommon Stock 1,212 $16.50 $19,998.00
Disclosure

SEC source: 0000899243-20-032635 · doc4.xml · nonDerivative · entry 1

Muller Frank L. · CIK 0001807551 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,015

Read SEC document
November 03, 2020 Filed Nov 11, 2020 01:20 UTC California BanCorp CALB · Entity 88623 GrantCommon Stock 665 $13.55 $9,010.75
Disclosure

SEC source: 0000899243-20-030751 · doc4.xml · nonDerivative · entry 1

Muller Frank L. · CIK 0001807551 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,803

F1 · price: These shares were issued to the reporting person under the issuer's Amended and Restated 2017 Equity Incentive Plan in lieu of retainer and meeting fees of $9,000.

Read SEC document
August 06, 2020 Filed Aug 10, 2020 22:17 UTC California BanCorp CALB · Entity 88623 GrantCommon Stock 667 $13.50 $9,004.50
Disclosure

SEC source: 0000899243-20-021917 · doc4.xml · nonDerivative · entry 1

Muller Frank L. · CIK 0001807551 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,360

F1 · price: These shares were issued to the reporting person under the issuer's 2017 Equty Incentive Plan in lieu of retainer and meeting fees of $9,000.

Read SEC document
August 06, 2020 Filed Aug 19, 2020 23:37 UTC California BanCorp CALB · Entity 88623 GrantCommon Stock 1,852 $0.00 $0.00
Disclosure

SEC source: 0000899243-20-022967 · doc4.xml · nonDerivative · entry 2

Muller Frank L. · CIK 0001807551 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,138

F1 · shares: Represents restricted stock units that vest on June 30, 2021, subject to the Reporting Person's continuous service through the vesting date. Each restricted stock unit represents a contingent right to receive one share of Common Stock.

Read SEC document
August 06, 2020 Filed Aug 19, 2020 23:37 UTC California BanCorp CALB · Entity 88623 GrantCommon Stock 926 $0.00 $0.00
Disclosure

SEC source: 0000899243-20-022967 · doc4.xml · nonDerivative · entry 1

Muller Frank L. · CIK 0001807551 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,286

Read SEC document
April 16, 2020 Filed Apr 20, 2020 19:33 UTC California BanCorp CALB · Entity 88623 GrantCommon Stock 693 $12.99 $9,002.07
Disclosure

SEC source: 0000899243-20-010984 · doc4.xml · nonDerivative · entry 1

Muller Frank L. · CIK 0001807551 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 693

F1 · price: These shares were issued to the reporting person under the issuer's 2017 Equty Incentive Plan in lieu of retainer and meeting fees of $9,000.

Read SEC document

Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.