Stock Trading Canary

United States · SEC Form 4 · Snapshot date: 2026-10-18 · Built: 2026-10-18 · 中文

← United States · Coverage record

US · SEC FORM 4

MIDDLEFIELD BANC CORP

MBCN · — · CIK 0000836147 · Financial Services

INSIDER SIGNAL

No active buy signal

0 qualifying P purchase groups
in the current 180-day scoring window

0 Form 4 transaction lines observed in the same window
0 sales · 0 option, withholding, award, gift or other lines

Last qualifying purchase2025-02-21 · DiGeronimo Kevin A · $50.0K

WHY NO ACTIVE SIGNAL?

Purchase activityNone
Recent buyingNone
Recent salesNone
Buy signal statusInactive
Score anatomy

No score is calculated because there is no qualifying purchase in the active window. Unavailable inputs are not treated as zero or as a bearish signal.

ClusterNot calculated
Purchase sizeNot calculated
RoleNot calculated
RecencyNot calculated
ConvictionNot calculated

Why is there no score?

  • No qualifying open-market purchase supplies cluster, size, role, recency or conviction inputs.
  • Sales and other Form 4 activity remain visible as context and do not create a negative score.

Sales and other Form 4 activity are shown separately and do not create a negative buy signal. Absence of buying is not scored as bearish.

Insider activity timeline

No Form 4 transaction event is present in the current 180-day window.

Purchase breadth, concentration & cluster buying

These modules activate when qualifying purchases enter the 180-day research window.

SIGNAL HISTORY

No recorded active-signal snapshot

Scores are archived only when the company qualifies for a published US buy-signal snapshot. Last qualifying purchase: 2025-02-21 · DiGeronimo Kevin A.

Recent Form 4 activity

0Purchases
0Sales
108Other Form 4 lines
46SEC filings · 365 days
BUYING0 qualifying P line(s) · 180 days
SELLING0 sale line(s) · context only
OTHER0 exercise / withholding / award / gift / other lines
10b5-1 / PLANNEDNot assessed

P is an open-market or private purchase. S is a sale. M, F, A and G usually describe exercises, tax withholding, awards and gifts. These categories remain visually separate.

Market context

Market context has not been captured for this ticker yet. The daily market-context job processes the US universe in rotating batches.

Short interest

The FINRA report lists no short interest for this ticker.

FINRA settlement date: 2026-09-30 · Captured 2026-10-12 · FINRA equity short interest ↗. A share count, published about a week after each of two settlement dates a month; not a percentage of shares outstanding.

Historical equity purchases

Qualifying code P transactions in the local Form 4 history, including purchases outside the current signal window.

Transaction dateReporting ownerTypeSecuritySharesAvg. priceApprox. valueSource
2025-02-21DiGeronimo Kevin APurchase (P)Common Stock1,950USD 25.65USD 50,018SEC filing ↗
2025-02-21Voinovich Michael CPurchase (P)Common Stock120USD 26.00USD 3,120SEC filing ↗
2025-02-21RANTTILA MICHAELPurchase (P)Common Stock48USD 25.15USD 1,207SEC filing ↗
2025-02-03RANTTILA MICHAELPurchase (P)Common Stock300USD 25.50USD 7,650SEC filing ↗
2024-09-16Zimmerly Ronald Len Jr.Purchase (P)Common Stock212USD 28.47USD 6,044SEC filing ↗
2024-06-05Wilson Thomas MPurchase (P)Common Stock1,000USD 20.98USD 20,980SEC filing ↗
2024-05-31Moeller Jennifer LPurchase (P)Common Stock200USD 21.40USD 4,280SEC filing ↗
2024-05-13Zimmerly Ronald Len Jr.Purchase (P)Common Stock1,000USD 22.47USD 22,470SEC filing ↗
2024-05-13Zimmerly Ronald Len Jr.Purchase (P)Common Stock1,000USD 22.47USD 22,470SEC filing ↗
2024-05-09Wilson Thomas MPurchase (P)Common Stock1,000USD 22.38USD 22,380SEC filing ↗
2024-05-09Moeller Jennifer LPurchase (P)Common Stock250USD 23.00USD 5,750SEC filing ↗
2024-02-14Moeller Jennifer LPurchase (P)Common Stock280USD 23.75USD 6,650SEC filing ↗
2024-02-05Voinovich Michael CPurchase (P)Common Stock1,000USD 25.75USD 25,750SEC filing ↗
2024-02-02Voinovich Michael CPurchase (P)Common Stock1,000USD 26.67USD 26,670SEC filing ↗
2023-11-02Moeller Jennifer LPurchase (P)Common Stock43USD 25.25USD 1,086SEC filing ↗

Form 4 evidence

108 transaction lines in the latest 365-day window; 421 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-03-02Zimmerly Ronald Len Jr.D (D)Common Stock93,475USD —USD —SEC filing ↗
2026-03-02Winters Sarah AD (D)Common Stock14,463USD —USD —SEC filing ↗
2026-03-02Wilson Thomas MD (D)Common Stock35,288USD —USD —SEC filing ↗
Show recent Form 4 evidence (30 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-03-02Zimmerly Ronald Len Jr.D (D)Common Stock93,475USD —USD —SEC filing ↗
2026-03-02Winters Sarah AD (D)Common Stock14,463USD —USD —SEC filing ↗
2026-03-02Wilson Thomas MD (D)Common Stock35,288USD —USD —SEC filing ↗
2026-03-02Voinovich Michael CD (D)Common Stock26,416USD —USD —SEC filing ↗
2026-03-02TURK CAROLYN JD (D)Common Stock32,560USD —USD —SEC filing ↗
2026-03-02Skidmore William JD (D)Common Stock22,755USD —USD —SEC filing ↗
2026-03-02RANTTILA MICHAELD (D)Common Stock33,217USD —USD —SEC filing ↗
2026-03-02Noblit Rebecca AD (D)Common Stock21,427USD —USD —SEC filing ↗
2026-03-02Moeller Jennifer LD (D)Common Stock4,696USD —USD —SEC filing ↗
2026-03-02MCCASKEY JAMES JD (D)Common Stock12,007USD —USD —SEC filing ↗
2026-03-02Jones Kenneth ED (D)Common Stock19,879USD —USD —SEC filing ↗
2026-03-02Erminio Courtney MD (D)Common Stock20,083USD —USD —SEC filing ↗
2026-03-02DiGeronimo Kevin AD (D)Common Stock5,071USD —USD —SEC filing ↗
2026-03-02Cheravitch Michael LD (D)Common Stock15,691USD —USD —SEC filing ↗
2026-03-02Bevan Thomas WD (D)Common Stock53,088USD —USD —SEC filing ↗
2026-02-23Zimmerly Ronald Len Jr.Tax withholding (F)Common Stock24,671USD 35.18USD 867,926SEC filing ↗
2026-02-23Zimmerly Ronald Len Jr.Award / grant (A)Common Stock58,626USD 35.18USD 2,062,463SEC filing ↗
2026-02-23Winters Sarah ATax withholding (F)Common Stock3,994USD 35.18USD 140,509SEC filing ↗
2026-02-23Winters Sarah AAward / grant (A)Common Stock13,547USD 35.18USD 476,583SEC filing ↗
2026-02-23Wilson Thomas MTax withholding (F)Common Stock5,098USD 35.18USD 179,348SEC filing ↗
2026-02-23Wilson Thomas MAward / grant (A)Common Stock18,252USD 35.18USD 642,105SEC filing ↗
2026-02-23Voinovich Michael CAward / grant (A)Common Stock405USD 35.18USD 14,248SEC filing ↗
2026-02-23TURK CAROLYN JAward / grant (A)Common Stock405USD 35.18USD 14,248SEC filing ↗
2026-02-23Skidmore William JAward / grant (A)Common Stock405USD 35.18USD 14,248SEC filing ↗
2026-02-23RANTTILA MICHAELTax withholding (F)Common Stock5,087USD 35.18USD 178,961SEC filing ↗
2026-02-23RANTTILA MICHAELAward / grant (A)Common Stock18,435USD 35.18USD 648,543SEC filing ↗
2026-02-23Noblit Rebecca ATax withholding (F)Common Stock5,420USD 35.18USD 190,676SEC filing ↗
2026-02-23Noblit Rebecca AAward / grant (A)Common Stock18,999USD 35.18USD 668,385SEC filing ↗
2026-02-23Moeller Jennifer LAward / grant (A)Common Stock405USD 35.18USD 14,248SEC filing ↗
2026-02-23MCCASKEY JAMES JAward / grant (A)Common Stock405USD 35.18USD 14,248SEC filing ↗

Multiple price lines in one filing are grouped and share-weighted. Price and value are blank when a grouped filing line lacks price evidence.

Snapshot & identity

Snapshot date2026-10-18
Ranking versionUS-v1.2
Data qualityPASS ELIGIBLE · —
TickerMBCN
CIK0000836147
SectorFinancial Services
Industry— Yahoo Finance
SEC SIC6022 State Commercial Banks
Exchange—

Data coverage

Local Form 4 history421 transaction lines from 2020-01-02 to 2026-03-02
101 P purchase lines · 1 S sale lines · 319 other lines
SEC company submissionsOpen SEC filings ↗

Local ledger as of 2026-10-18. Mapping status is an audit field and does not erase SEC filing evidence.