# EDGAR Filing Document

**Accession Number:** 0000836147
**File Stem:** 0001437749-26-007835
**Filing Date:** 2026-3
**Character Count:** 3078
**Document Hash:** c8831737d559c719236438a30d386b1e
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001437749-26-007835.hdr.sgml**: 20260312

**ACCESSION NUMBER**: 0001437749-26-007835

**CONFORMED SUBMISSION TYPE**: 15-12G

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20260312

**DATE AS OF CHANGE**: 20260312

**EFFECTIVENESS DATE**: 20260312

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** MIDDLEFIELD BANC CORP
- **CENTRAL INDEX KEY:** 0000836147
- **STANDARD INDUSTRIAL CLASSIFICATION:** STATE COMMERCIAL BANKS [6022]
- **ORGANIZATION NAME:** 02 Finance
- **EIN:** 341585111
- **STATE OF INCORPORATION:** OH
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 15-12G
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-36613
- **FILM NUMBER:** 26745767

**BUSINESS ADDRESS:**
- **STREET 1:** 15985 EAST HIGH STREET
- **STREET 2:** P O BOX 35
- **CITY:** MIDDLEFIELD
- **STATE:** OH
- **ZIP:** 44062-9263
- **BUSINESS PHONE:** 4406321666

**MAIL ADDRESS:**
- **STREET 1:** 15985 EAST HIGH STREET
- **STREET 2:** P O BOX 35
- **CITY:** MIDDLEFIELD
- **STATE:** OH
- **ZIP:** 44062-9263

**UNITED STATES**

**SECURITIES AND EXCHANGE COMMISSION**

**Washington, D.C. 20549**

**FORM 15**

**CERTIFICATION AND NOTICE OF TERMINATION OF REGISTRATION UNDER**

**SECTION 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR**

**SUSPENSION OF DUTY TO FILE REPORTS UNDER SECTIONS 13 AND 15(d)**

**OF THE SECURITIES EXCHANGE ACT OF 1934**

**Commission File Number: 001-36613**

## Middlefield Banc Corp.
(Exact name of registrant as specified in its charter)

**c/o Farmers National Banc Corp.**

**20 South Broad Street, Canfield, Ohio 44406**

**(330) 533-3341**

(Address, including zip code, and telephone number, including area code, of registrant's principal executive offices)

**Common Stock, no par value**

(Title of each class of securities covered by this Form)

**None**

(Titles of all other classes of securities for which a duty to file reports under section 13(a) or 15(d) remains)

Please place an X in the box(es) to designate the appropriate rule provision(s) relied upon to terminate or suspend the duty to file reports:

---

| | |
|:---|:---|
| &nbsp;&nbsp;&nbsp; Rule 12g-4(a)(1) | ☑ |
| &nbsp;&nbsp;&nbsp; Rule 12g-4(a)(2) | ☐ |
| &nbsp;&nbsp;&nbsp; Rule 12h-3(b)(1)(i) | ☑ |
| &nbsp;&nbsp;&nbsp; Rule 12h-3(b)(1)(ii) | ☐ |
| &nbsp;&nbsp;&nbsp; Rule 15d-6 | ☐ |
| &nbsp;&nbsp;&nbsp; Rule 15d-22(b) | ☐ |

---

Approximate number of holders of record as of the certification or notice date: None.

Pursuant to the requirements of the Securities Exchange Act of 1934, Farmers National Banc Corp., as successor by merger to Middlefield Banc Corp., has caused this certification/notice to be signed on its behalf by the undersigned duly authorized person.

---

| | | |
|:---|:---|:---|
|  | **Farmers National Banc Corp.**<br> (as successor by merger to Middlefield Banc Corp.) | **Farmers National Banc Corp.**<br> (as successor by merger to Middlefield Banc Corp.) |
| Date: March 12, 2026 | By:  | /s/ Kevin J. Helmick |
|  |  | Kevin J. Helmick |
|  |  | President and Chief Executive Officer |

---