BetaInsiders sold $2.1M in the past 12 months.0% was sold under disclosed trading plans, 100% with no plan disclosed. The largest seller, David Rainer (Chairman and CEO, Director), sold $1.4M.Share-of-stake figures for this company are being verified and will be added when that check is finished. Why
A share of stake is shown for 0 of the 4 officers and directors who sold. 20 are left out Disclosed company stock is not an insider's whole wealth.i
Left out: David Rainer, Rochelle Klein, Frank Di Tomaso, Stephen Cortese, Thomas Dolan, Andrew Armanino, Steven Shelton, Lester Machado, Richard Hernandez, Kevin Cullen, Michelle Wirfel, Anne Williams, Martin Liska, Jean Carandang, Frank Muller, Peter Nutz, Joann Yeung, Ricardo Martin, Manisha Merchant and David Volk (share of stake is being verified).
Officers and directors, past 12 months. Their share of stake is being verified and is not shown yet; amounts and trading plans are below.
Officers and directors, Oct 2025 to Oct 2026. Each sale is counted once: under a disclosed plan, else to cover taxes, else no plan disclosed.
| Who | Shares | Price | % of total stake | Total stake after | Trade date | Filed |
|---|---|---|---|---|---|---|
| Michelle Wirfel EVP, Chief Operating Officer | 93 | $21.51 | n/a | n/a | Sep 21, 2026 | Sep 23, 2026 |
"% of total stake" is the shares in an event against all the vested shares the person held that day, across every share class and holding entity, after that day's vesting. "n/a" means the person's holdings are not confirmed, or the row is a purchase. "Holdings record incomplete" means more shares were sold than the filings show the person held that day, so a percentage would be wrong.
David Volk (for the outside shareholder represented on the board) sold $44.5M in the past 12 months. Large shareholders and the funds or companies that board members represent are not part of management, so they are left out of the figures above.
Yes. David Rainer sold 75K shares ($1.4M) in the past 12 months, none of it under a trading plan disclosed in the filings.
Filings rarely give a reason, and we don't guess at one. What they show is how the sales were made: 0% of sales by value ran under 10b5-1 trading plans disclosed in the filings and 100% had no disclosed plan. A trading plan schedules sales in advance.
Yes. 2 officers or directors reported 2 purchases in the past 12 months (Form 4 code P; rows the filings describe as reinvested dividends, plan purchases, private deals or moves into the person's own trust are not counted).
| Who sold | Amount | % of holdings | Trading plan |
|---|---|---|---|
| David Rainer Chairman and CEO, Director | $1.4M 75K shares | Not confirmedshare of stake is being verified. Why | No plan disclosed |
| Richard Hernandez President | $325K 17K shares | Not confirmedshare of stake is being verified. Why | No plan disclosed |
| Lester Machado Director | $159K 7.5K shares | Not confirmedshare of stake is being verified. Why | No plan disclosed |
| Jean Carandang Bank Chief Financial Officer | $143K 8K shares | Not confirmedshare of stake is being verified. Why | No plan disclosed |
Board members representing outside shareholders, reported separately: David Volk (the shareholder sold $44.5M). Details
Vested shares across all share classes, held directly and through trusts, LLCs and family members, as reported on SEC Forms 3, 4 and 5. Unvested awards and options are never counted as owned shares.
| Insider | Held Oct 13, 2025 | Sold | Held Oct 13, 2026 | Still held | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
David Rainer!Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for David Rainer are complete. Chairman and CEO, Director | n/a | −75K | n/a | n/a | ||||||||||||
Vesting, gifts, unvested awards and holding lines for David RainerHoldings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for David Rainer are complete; balances and unit counts will be added when the check is finished. −2Kgifted (net of own trusts) −42Kwithheld by the company for taxes | ||||||||||||||||
Rochelle Klein!Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Rochelle Klein are complete. Director | n/a | 0 | n/a | n/a | ||||||||||||
Vesting, gifts, unvested awards and holding lines for Rochelle KleinHoldings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Rochelle Klein are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts) | ||||||||||||||||
Frank Di Tomaso!Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Frank Di Tomaso are complete. Director | n/a | 0 | n/a | n/a | ||||||||||||
Vesting, gifts, unvested awards and holding lines for Frank Di TomasoHoldings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Frank Di Tomaso are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts) | ||||||||||||||||
Stephen Cortese!Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Stephen Cortese are complete. Director | n/a | 0 | n/a | n/a | ||||||||||||
Vesting, gifts, unvested awards and holding lines for Stephen CorteseHoldings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Stephen Cortese are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts) | ||||||||||||||||
Thomas Dolan!Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Thomas Dolan are complete. EVP / Bancorp CFO/ CSO | n/a | 0 | n/a | n/a | ||||||||||||
Vesting, gifts, unvested awards and holding lines for Thomas DolanHoldings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Thomas Dolan are complete; balances and unit counts will be added when the check is finished. −4.1Kgifted (net of own trusts) −5.2Kwithheld by the company for taxes | ||||||||||||||||
Andrew Armanino!Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Andrew Armanino are complete. Director | n/a | 0 | n/a | n/a | ||||||||||||
Vesting, gifts, unvested awards and holding lines for Andrew ArmaninoHoldings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Andrew Armanino are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts) | ||||||||||||||||
Steven Shelton!Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Steven Shelton are complete. Chief Executive Officer, Director | n/a | 0 | n/a | n/a | ||||||||||||
Vesting, gifts, unvested awards and holding lines for Steven SheltonHoldings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Steven Shelton are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts) | ||||||||||||||||
Lester Machado!Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Lester Machado are complete. Director | n/a | −7.5K | n/a | n/a | ||||||||||||
Vesting, gifts, unvested awards and holding lines for Lester MachadoHoldings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Lester Machado are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts) | ||||||||||||||||
Richard Hernandez!Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Richard Hernandez are complete. President | n/a | −17K | n/a | n/a | ||||||||||||
Vesting, gifts, unvested awards and holding lines for Richard HernandezHoldings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Richard Hernandez are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts) −7Kwithheld by the company for taxes | ||||||||||||||||
Kevin Cullen!Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Kevin Cullen are complete. Director | n/a | 0 | n/a | n/a | ||||||||||||
Vesting, gifts, unvested awards and holding lines for Kevin CullenHoldings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Kevin Cullen are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts) | ||||||||||||||||
Michelle Wirfel!Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Michelle Wirfel are complete. EVP, Chief Operating Officer | n/a | 0 | n/a | n/a | ||||||||||||
Vesting, gifts, unvested awards and holding lines for Michelle WirfelHoldings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Michelle Wirfel are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts) −4Kwithheld by the company for taxes | ||||||||||||||||
Anne Williams!Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. See the filing Sales and other transactions for Anne Williams are complete. Director | n/a | 0 | n/a | n/a | ||||||||||||
Vesting, gifts, unvested awards and holding lines for Anne WilliamsHoldings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Anne Williams are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts) | ||||||||||||||||
Martin Liska!Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Martin Liska are complete. EVP / Chief Risk Officer | n/a | 0 | n/a | n/a | ||||||||||||
Vesting, gifts, unvested awards and holding lines for Martin LiskaHoldings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Martin Liska are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts) −5.6Kwithheld by the company for taxes | ||||||||||||||||
Jean Carandang!Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Jean Carandang are complete. Bank Chief Financial Officer | n/a | −8K | n/a | n/a | ||||||||||||
Vesting, gifts, unvested awards and holding lines for Jean CarandangHoldings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Jean Carandang are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts) −4.9Kwithheld by the company for taxes | ||||||||||||||||
Frank Muller!Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Frank Muller are complete. Director | n/a | 0 | n/a | n/a | ||||||||||||
Vesting, gifts, unvested awards and holding lines for Frank MullerHoldings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Frank Muller are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts) | ||||||||||||||||
Peter Nutz!Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Peter Nutz are complete. EVP/ Chief Credit Officer | n/a | 0 | n/a | n/a | ||||||||||||
Vesting, gifts, unvested awards and holding lines for Peter NutzHoldings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Peter Nutz are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts) −4.1Kwithheld by the company for taxes | ||||||||||||||||
Joann Yeung!Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Joann Yeung are complete. EVP / Chief Accounting Officer | n/a | 0 | n/a | n/a | ||||||||||||
Vesting, gifts, unvested awards and holding lines for Joann YeungHoldings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Joann Yeung are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts) −3.8Kwithheld by the company for taxes | ||||||||||||||||
Ricardo Martin!Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Ricardo Martin are complete. Director | n/a | 0 | n/a | n/a | ||||||||||||
Vesting, gifts, unvested awards and holding lines for Ricardo MartinHoldings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Ricardo Martin are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts) | ||||||||||||||||
Manisha Merchant!Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. See the filing Sales and other transactions for Manisha Merchant are complete. EVP / Chief Legal Officer | n/a | 0 | n/a | n/a | ||||||||||||
Vesting, gifts, unvested awards and holding lines for Manisha MerchantHoldings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Manisha Merchant are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts) −5.5Kwithheld by the company for taxes | ||||||||||||||||
David Volk!Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for David Volk are complete. Director | n/a | 0 | n/a | n/a | ||||||||||||
Vesting, gifts, unvested awards and holding lines for David VolkHoldings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for David Volk are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts) Stock options (not counted as shares):
Estimate: options held × ($22.13 − strike price), using the most recent insider trade price on Form 4 (Sep 4, 2026), not a market close. | ||||||||||||||||
Holdings and share of stake for California BanCorp \ CA are being verified, so no balances, unit counts or percentages are shown. Sales, proceeds, plan and tax status, titles and dates come straight from individual filings.
Officer and director open-market sales: $2.1M across 107,500 shares. Plan status and stated purpose are separate questions, and a sale can have both.
Sales with no 10b5-1 plan and no tax reference in the filing. $1.4M of it is David Rainer. No plan disclosed is a statement about the filing, not about why the sale happened. Largest such sale: David Rainer, May 7, 2026
82,365 shares ($1.6M) were withheld by the company for taxes, which isn't a market sale.
2 officers and directors bought shares in this period, in 2 trades(Form 4 code P, leaving out rows the filings describe as reinvested dividends, plan purchases, private deals or moves into the person's own trust). Across all their filings on record there are 2 purchase trades.
| Seller | Shares sold | Proceeds | Under a disclosed plan | Share of total | Sales dates |
|---|---|---|---|---|---|
| David Rainer Chairman and CEO, Director | 75K | $1.4M | 0% | 69% | May 7, 2026 to May 7, 2026 |
| Richard Hernandez President | 17K | $325K | 0% | 16% | May 8, 2026 to May 8, 2026 |
| Lester Machado Director | 7.5K | $159K | 0% | 8% | Jul 31, 2026 to Jul 31, 2026 |
| Jean Carandang Bank Chief Financial Officer | 8K | $143K | 0% | 7% | Mar 6, 2026 to Mar 6, 2026 |
| Month | Sale proceeds | Disclosed plan | To cover taxes | No plan disclosed |
|---|---|---|---|---|
| Oct 2025 | $0 | $0 | $0 | $0 |
| Nov 2025 | $0 | $0 | $0 | $0 |
| Dec 2025 | $0 | $0 | $0 | $0 |
| Jan 2026 | $0 | $0 | $0 | $0 |
| Feb 2026 | $0 | $0 | $0 | $0 |
| Mar 2026 | $143K | $0 | $0 | $143K |
| Apr 2026 | $0 | $0 | $0 | $0 |
| May 2026 | $1.8M | $0 | $0 | $1.8M |
| Jun 2026 | $0 | $0 | $0 | $0 |
| Jul 2026 | $159K | $0 | $0 | $159K |
| Aug 2026 | $0 | $0 | $0 | $0 |
| Sep 2026 | $0 | $0 | $0 | $0 |
| Oct 2026 | $0 | $0 | $0 | $0 |
Directors whose reported holdings sit mostly in an investment fund or a corporate shareholder they represent, not in their own name, with beneficial ownership disclaimed except for their own financial interest. Listed and sourced here; not part of the management totals or the answer line. Shares a fund hands to its own investors are distributions, not sales.
| Board member | Held Oct 13, 2025 | Sold | Held Oct 13, 2026 | Still held |
|---|---|---|---|---|
David Volk!Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. See the filing Sales and other transactions for David Volk are complete. Director | n/a | −2.35M | n/a | n/a |
Vesting, gifts, unvested awards and holding lines for David VolkHoldings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for David Volk are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts) | ||||
Holdings and share of stake are being verified. Balances, unit counts and every share-of-stake figure for California BanCorp \ CA are held back until that check is finished. Sales, proceeds, plan and tax status, titles and dates come straight from individual filings and are complete.
External context: we only cite outside events when a documented connection exists. None is shown for this period.
All 233 Forms 3, 4 and 5 on record for California BanCorp \ CA (SEC CIK 1795815), filed from May 10, 2023 to Sep 23, 2026; 76 of them were filed in the 12 months this page covers, retrieved from SEC EDGAR on Oct 13, 2026. Prices are the ones reported in each filing, often weighted averages.
Holdings. Each holding line (a share class plus an owner, such as a trust or LLC) carries its last reported balance forward. Entities first reported during the period start at zero, so transfers between an insider's own trusts don't count as selling. Lines not reported for three years or more are listed separately and left out of totals.
Sales. A sale counts as under a 10b5-1 plan if its footnote cites one or the filing's Rule 10b5-1 box is checked, and as tax-related if its footnote cites tax obligations or sell-to-cover. Shares withheld by the company for taxes are listed separately. Sales with neither attribute are labeled "no plan disclosed".
| Name | Last filed | Last reported balance |
|---|---|---|
| SA THOMAS A | Aug 6, 2024 | 67,490 shares, last reported balance as of Aug 2, 2024 |
| John Farkash | Feb 28, 2024 | 3,033,181 shares, last reported balance as of Feb 27, 2024 |
| Kaveh Varjavand | Feb 5, 2024 | 7,821 shares, last reported balance as of Feb 1, 2024 |
| Anita Wolman | Feb 5, 2024 | 6,906 shares, last reported balance as of Feb 1, 2024 |
| Irwin Golds | Feb 5, 2024 | 39,367 shares, last reported balance as of Feb 1, 2024 |
| Thomas Dolan | May 10, 2023 | 247,413 shares, last reported balance as of May 10, 2023 |
| Castle Creek Capital Partners VI, LP | May 10, 2023 | 2,340,719 shares, last reported balance as of May 10, 2023 |
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