Through the 90-day period concluding December 31, 2025, Middlefield Banc's top three insider stakeholders include Chief Executive Officer Ronald Len Jr. Zimmerly (51.21K shares), Evp Chief Strategy Officer Thomas M Wilson (21.55K shares), Evp/Cfo Michael Ranttila (18.53K shares).
| Holder | Position | Shares | Report Date |
|---|---|---|---|
| Ronald Len Jr. Zimmerly | Chief Executive Officer | 51,210 | 18 Dec, 2025 |
| James R Ii Heslop | Chief Executive Officer | 37,294 | 10 Jul, 2023 |
| Darryl E Mast | 36,727 | 02 Jan, 2025 | |
| Carolyn J Turk | 32,155 | 02 Jan, 2025 | |
| Thomas W Bevan | 26,153 | 02 Jan, 2025 | |
| Thomas M Wilson | Evp Chief Strategy Officer | 21,546 | 18 Dec, 2025 |
| Thomas G Caldwell | President/Chief Executive Offi | 21,274 | 03 Mar, 2022 |
| William J Skidmore | 20,337 | 02 Jan, 2025 | |
| Michael Ranttila | Evp/Cfo | 18,530 | 18 Dec, 2025 |
| Kenneth E Jones | 17,320 | 02 Jan, 2025 | |
| Donald L Stacy | Treasurer/Cfo | 11,974 | 01 Mar, 2023 |
| Courtney M Erminio | Evp/Chief Risk Officer | 7,474 | 18 Dec, 2025 |
| Rebecca A Noblit | Evp Chief Credit Officer | 7,209 | 18 Dec, 2025 |
| Charles O Moore | President And Central Ohio Region | 6,055 | 03 Mar, 2022 |
| Robert W Toth | 5,785 | 06 Jan, 2021 | |
| Clayton W Iii Rose | 5,623 | 02 Jul, 2021 | |
| James J Mccaskey | 5,524 | 02 Jan, 2025 | |
| Kevin A Digeronimo | 4,666 | 27 Mar, 2025 | |
| Michael L Cheravitch | Evp Chief Banking Officer | 4,295 | 18 Dec, 2025 |
| Sarah A Winters | Evp/Chro | 4,292 | 18 Dec, 2025 |
| Michael C Voinovich | 3,891 | 02 Jan, 2025 | |
| Michael L Allen | Evp Chief Banking Officer | 3,033 | 01 Mar, 2023 |
| Jennifer L Moeller | 2,077 | 02 Jan, 2025 | |
| Alfred F Jr Thompson | Evp/Chief Credit Officer | 1,891 | 01 Mar, 2023 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 17 Dec, 2025 | Michael L Cheravitch | Common Stock | A | 5,204 | $37.00 | 5,809 | D | A |
| 17 Dec, 2025 | Courtney M Erminio | Common Stock | A | 2,035 | $37.00 | 6,472 | D | A |
| 17 Dec, 2025 | Michael Ranttila | Common Stock | A | 3,558 | $37.00 | 9,729 | D | A |
| 17 Dec, 2025 | Rebecca A Noblit | Common Stock | A | 676 | $37.00 | 7,402 | D | A |
| 17 Dec, 2025 | Ronald Len Jr. Zimmerly | Common Stock | A | 4,653 | $37.00 | 43,169 | D | A |
| 17 Dec, 2025 | Sarah A Winters | Common Stock | A | 5,204 | $37.00 | 5,809 | D | A |
| 17 Dec, 2025 | Thomas M Wilson | Common Stock | A | 1,651 | $37.00 | 9,528 | D | A |
| 17 Dec, 2025 | Michael Ranttila | Common Stock | A | 12,713 | $37.00 | 22,442 | D | A |
| 17 Dec, 2025 | Ronald Len Jr. Zimmerly | Common Stock | A | 10,161 | $37.00 | 53,330 | D | A |
| 17 Dec, 2025 | Michael L Cheravitch | Common Stock | D | 1,514 | $37.00 | 4,295 | D | F |
| 17 Dec, 2025 | Thomas M Wilson | Common Stock | D | 480 | $37.00 | 9,048 | D | F |
| 17 Dec, 2025 | Rebecca A Noblit | Common Stock | D | 193 | $37.00 | 7,209 | D | F |
| 17 Dec, 2025 | Sarah A Winters | Common Stock | D | 1,517 | $37.00 | 4,292 | D | F |
| 17 Dec, 2025 | Courtney M Erminio | Common Stock | A | 2,204 | $37.00 | 8,676 | D | A |
| 17 Dec, 2025 | Michael Ranttila | Common Stock | D | 3,962 | $37.00 | 18,480 | D | F |
| 17 Dec, 2025 | Ronald Len Jr. Zimmerly | Common Stock | D | 4,126 | $37.00 | 49,204 | D | F |
| 17 Dec, 2025 | Courtney M Erminio | Common Stock | D | 1,202 | $37.00 | 7,474 | D | F |
| 01 Dec, 2025 | Ronald Len Jr. Zimmerly | Common Stock | A | 3,788 | $34.82 | 39,628 | D | A |
| 01 Dec, 2025 | Ronald Len Jr. Zimmerly | Common Stock | D | 1,112 | $34.82 | 38,516 | D | F |
| 06 Aug, 2025 | Ronald Len Jr. Zimmerly | Common Stock | A | 2,260 | $27.11 | 36,503 | D | A |