MBCN is the ticker symbol for MIDDLEFIELD BANC CORP, a publicly traded Financials sector company listed on Nasdaq. 13F Pro tracks MBCN with AI-powered analysis, a 32-signal quality score, SEC EDGAR financials, insider transactions, and institutional 13F holdings — all sourced directly from public SEC filings.

Is MBCN a good stock to buy?

MBCN is tracked on 13F Pro with SEC EDGAR data, but is not currently included in our 32-signal AI quality ranking. The full company profile with financials and AI insights is at https://13fpro.ai/company/MBCN.

Where does 13F Pro source MBCN data?

All MIDDLEFIELD BANC CORP fundamentals and ownership data come directly from SEC EDGAR. MIDDLEFIELD BANC CORP files with the SEC under CIK 836147. 13F Pro ingests XBRL financial facts from 10-K and 10-Q filings, Form 13F-HR institutional holdings, and Form 4 insider transactions, with no third-party rewrites or estimates.

MIDDLEFIELD BANC CORP(MBCN)— Stock Profile, AI Score & Financials

Financials · Nasdaq · AI-powered stock analysis, 32-signal quality score, SEC EDGAR financials, and institutional holdings. Updated 2025-09-30.

MIDDLEFIELD BANC CORP (MBCN) stock profile, AI quality score, and SEC EDGAR financial data, a Financials sector company. MBCN is not currently included in 13F Pro's AI-ranked quality universe — this company passes all size and coverage filters but hasn't been included in the latest quarterly ranking run. rankings refresh on jan 1, apr 1, jul 1, oct 1. Based on the latest XBRL financial filings (Q3 2025), MIDDLEFIELD BANC CORP reports quarterly revenue of $19.9M, net income of $5.3M, an operating margin of 32.2%. Top institutional holders of MBCN by reported 13-F value include BlackRock, VANGUARD GROUP, GEODE CAPITAL MANAGEMENT, based on the most recent SEC filings. MBCN trades on the Nasdaq exchange and files with the SEC under CIK 836147. 13F Pro's AI research platform runs 10 specialized AI analysts — value, growth, momentum, macro, and activist specialists — that debate MBCN daily and publish AI-generated analysis with cited SEC sources. The platform aggregates historical XBRL financial facts, 10-Q and 10-K filings, insider Form 4 transactions, and institutional 13-F holdings for MIDDLEFIELD BANC CORP directly from SEC EDGAR.

Revenue

$19.9M

Net Income

$5.3M

Free Cash Flow

$3.4M

Operating Margin

32.2%

MBCN key financials by period

MIDDLEFIELD BANC CORP reported revenue, net income and margins by fiscal period, from SEC filings.
Period	Form	Revenue	Net income	Operating margin
FY 2024	10-K	$67.9M	$15.5M	27.0%
FY 2023	10-K	$71.9M	$17.4M	28.9%
FY 2022	10-K	$56.9M	$15.7M	33.2%
FY 2021	10-K	$55.4M	$18.6M	41.0%
FY 2020	10-K	$49.4M	$8.3M	19.8%
FY 2019	10-K	$46.2M	$12.7M	33.1%

Institutions holding MBCN

Institutional investors reporting a position in MIDDLEFIELD BANC CORP on SEC Form 13F.
Institution	Shares	Value	Reported
BlackRock	464,415	$16.0M	2025-12-31
VANGUARD GROUP	411,069	$14.2M	2025-12-31
GEODE CAPITAL MANAGEMENT	172,196	$5.9M	2025-12-31
STATE STREET	112,447	$3.9M	2025-12-31
ALLIANCEBERNSTEIN L.P.	105,015	$3.6M	2025-12-31
GARDNER LEWIS ASSET MANAGEMENT L P	93,365	$3.2M	2025-12-31
DIMENSIONAL FUND ADVISORS	84,399	$2.9M	2025-12-31
GLAZER CAPITAL	52,666	$1.8M	2025-12-31
BRIDGEWAY CAPITAL MANAGEMENT	50,775	$1.8M	2025-12-31
NORTHERN	50,143	$1.7M	2025-12-31

SEC EDGAR: CIK 836147 →

MIDDLEFIELD BANC CORP

MBCN

NasdaqSmall CapFinancials

13F Pro Quality Score

Not in ranked universe

Pending next ranking run

This company passes all size and coverage filters but hasn't been included in the latest quarterly ranking run. Rankings refresh on Jan 1, Apr 1, Jul 1, Oct 1.

Financial data, filings, and institutional holdings below are still tracked in full — only the proprietary quality composite is unavailable for this name.