MBCN · Insider Trading
Middlefield Banc Corp.
Every open-market purchase and sale reported by MBCN officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.
| Filed | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-03-02 | Michael L Cheravitch | EVP-Chief Banking Officer | D | −15,691 | — |
| 2026-03-02 | Courtney M Erminio | EVP/Chief Risk Officer | D | −20,082 | — |
| 2026-03-02 | Rebecca A Noblit | EVP-Chief Credit Officer | D | −21,427 | — |
| 2026-03-02 | Jennifer L Moeller | Director | D | −4,696 | — |
| 2026-03-02 | Kenneth E Jones | Director | D | −19,879 | — |
| 2026-03-02 | Michael Ranttila | EVP/CFO | D | −33,217 | — |
| 2026-03-02 | Sarah A Winters | EVP/CHRO | D | −14,463 | — |
| 2026-03-02 | Michael C Voinovich | Director | D | −26,416 | — |
| 2026-03-02 | Carolyn J Turk | Director | D | −32,560 | — |
| 2026-03-02 | James J McCaskey | Director | D | −12,007 | — |
| 2026-03-02 | Thomas M Wilson | EVP-Chief Strategy Officer | D | −35,288 | — |
| 2026-03-02 | William J Skidmore | Director | D | −22,755 | — |
| 2026-03-02 | Thomas W Bevan | Director | D | −53,088 | — |
| 2026-03-02 | Ronald Len Zimmerly Jr. | Chief Executive Officer | D | −93,475 | — |
| 2026-03-02 | Kevin A DiGeronimo | Director | D | −5,071 | — |
| 2026-02-25 | Carolyn J Turk | Director | A | +405 | +$14.25K |
| 2026-02-25 | William J Skidmore | Director | A | +405 | +$14.25K |
| 2026-02-25 | Thomas W Bevan | Director | A | +405 | +$14.25K |
| 2026-02-25 | Kenneth E Jones | Director | A | +405 | +$14.25K |
| 2026-02-25 | James J McCaskey | Director | A | +405 | +$14.25K |
| 2026-02-25 | Michael L Cheravitch | EVP-Chief Banking Officer | MIXED | +9,191 | +$323.34K |
| 2026-02-25 | Michael Ranttila | EVP/CFO | MIXED | +13,348 | +$469.58K |
| 2026-02-25 | Jennifer L Moeller | Director | A | +405 | +$14.25K |
| 2026-02-25 | Thomas M Wilson | EVP-Chief Strategy Officer | MIXED | +13,154 | +$462.76K |
| 2026-02-25 | Kevin A DiGeronimo | Director | A | +405 | +$14.25K |
| 2026-02-25 | Michael C Voinovich | Director | A | +405 | +$14.25K |
| 2026-02-25 | Ronald Len Zimmerly Jr. | Chief Executive Officer | MIXED | +33,955 | +$1.19M |
| 2026-02-25 | Rebecca A Noblit | EVP-Chief Credit Officer | MIXED | +13,579 | +$477.71K |
| 2026-02-25 | Sarah A Winters | EVP/CHRO | MIXED | +9,553 | +$336.07K |
| 2026-02-25 | Courtney M Erminio | EVP/Chief Risk Officer | MIXED | +11,833 | +$416.28K |
| 2026-01-16 | Sarah A Winters | EVP/CHRO | MIXED | +618 | +$21.32K |
| 2026-01-16 | Thomas M Wilson | EVP-Chief Strategy Officer | MIXED | +588 | +$20.29K |
| 2026-01-16 | Rebecca A Noblit | EVP-Chief Credit Officer | MIXED | +639 | +$22.05K |
| 2026-01-16 | Michael L Cheravitch | EVP-Chief Banking Officer | MIXED | +575 | +$19.84K |
| 2026-01-16 | Ronald Len Zimmerly Jr. | Chief Executive Officer | MIXED | +1,530 | +$52.78K |
| 2026-01-16 | Michael Ranttila | EVP/CFO | MIXED | +1,039 | +$35.85K |
| 2026-01-16 | Courtney M Erminio | EVP/Chief Risk Officer | MIXED | +625 | +$21.56K |
| 2026-01-05 | Michael L Cheravitch | EVP-Chief Banking Officer | MIXED | +1,630 | +$56.30K |
| 2025-12-18 | Ronald Len Zimmerly Jr. | Chief Executive Officer | MIXED | +10,688 | +$395.46K |
| 2025-12-18 | Thomas M Wilson | EVP-Chief Strategy Officer | MIXED | +1,171 | +$43.33K |
| 2025-12-18 | Rebecca A Noblit | EVP-Chief Credit Officer | MIXED | +483 | +$17.87K |
| 2025-12-18 | Courtney M Erminio | EVP/Chief Risk Officer | MIXED | +3,037 | +$112.37K |
| 2025-12-18 | Sarah A Winters | EVP/CHRO | MIXED | +3,687 | +$136.42K |
| 2025-12-18 | Michael L Cheravitch | EVP-Chief Banking Officer | MIXED | +3,690 | +$136.53K |
| 2025-12-18 | Michael Ranttila | EVP/CFO | MIXED | +12,309 | +$455.43K |
| 2025-12-03 | Ronald Len Zimmerly Jr. | Chief Executive Officer | MIXED | +2,676 | +$93.18K |
| 2025-08-07 | Rebecca A Noblit | EVP-Chief Credit Officer | MIXED | +615 | +$16.67K |
| 2025-08-07 | Ronald Len Zimmerly Jr. | Chief Executive Officer | MIXED | +1,597 | +$43.29K |
| 2025-08-07 | Sarah A Winters | EVP/CHRO | MIXED | +605 | +$16.40K |
| 2025-08-07 | Courtney M Erminio | EVP/Chief Risk Officer | MIXED | +611 | +$16.56K |
| Insider | Role | Shares Held | Value |
|---|---|---|---|
| Darryl E Mast | Director | 33,169 | $1.12M |
Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.
Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.
Full filing history and per-insider positions are on the MBCN quote page; the site-wide leaderboard is on the insider transactions hub.
Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.