RANTTILA MICHAEL 4
4 · MIDDLEFIELD BANC CORP · Filed Feb 25, 2026
Insider Transaction Report
Form 4
RANTTILA MICHAEL
EVP/CFO
Transactions
- Award
Common Stock
[F2][F1]2026-02-23$35.18/sh+3,013$105,997→ 22,532.1 total - Award
Common Stock
[F3][F1]2026-02-23$35.18/sh+2,955$103,957→ 25,487.1 total - Award
Common Stock
[F4][F1]2026-02-23$35.18/sh+12,467$438,589→ 37,954.1 total - Tax Payment
Common Stock
[F1]2026-02-23$35.18/sh−5,087$178,961→ 32,867.1 total
Holdings
- 50(indirect: as Custodian for Grandson)
Common Stock
- 300(indirect: By IRA)
Common Stock
Footnotes (4)
- [F1]Includes shares acquired under MBCN Dividend Reinvestment Plan
- [F2]The shares represent accelerated vesting of restricted stock units ("RSUs") resulting from action of the Middlefield Compensation Committee on February 23, 2026, approving the full vesting of all outstanding plan share awards, including the RSUs. For further information regarding the acceleration of the RSUs, please see the Form 8-K Current Report filed by Middlefield with the SEC on February 25, 2026.The restricted stock award was originally granted on September 4, 2024, and provides for vesting on the third anniversary of the award.
- [F3]The shares represent accelerated vesting of RSUs resulting from Compensation Committee approval on February 23, 2026. See the Form 8-K Current Report filed by Middlefield with the SEC on February 25, 2026.The restricted stock award was originally granted on January 17, 2025, and provides for vesting on the third anniversary of the award.
- [F4]The shares represent accelerated vesting of PSUs resulting from action of the Middlefield Compensation Committee on February 23, 2026. See the Form 8-K Current Report filed by Middlefield with the SEC on February 25, 2026. The vesting conditions at grant were described in a Form 8-K filed on January 17, 2025.
Signature
/s/ Michael C. Ranttila by Julie E. Shaw Power of Attorney|2026-02-25