MICHAEL RANTTILA

CIK 1792684 · EVP/CFO · last filed 2026-03-02

MICHAEL RANTTILA is an EVP/CFO who has filed 20 SEC Form 4 insider transactions across 1 company since 2021. The most recent filing, for MBCN, was dated Mar 2, 2026. Across all open-market trades the lifetime net is +$8.9K, making them a net buyer over the disclosed history.

"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.

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Disclosed Exposure

$0

Companies

1

Total Filings

20

Lifetime Open-Market Net

$8.9K

Holdings By Company

Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
Symbol Role Shares Price Disclosed Exposure Lifetime OM Net Filings Latest Filed
MIDDLEFIELD BANC CORP (MBCN) Delisted EVP/CFO 0 $33.67 $0 $8.9K 20 2026-03-02

Recent Filings

20 filings
Form 4 transactions across all companies, newest first.
Filed Symbol Action Net Shares Net $ Link
2026-03-02 MIDDLEFIELD BANC CORP (MBCN) Delisted Disp (D) −33,217 $0 EDGAR
2026-02-25 MIDDLEFIELD BANC CORP (MBCN) Delisted Mixed +13,348 $469.6K EDGAR
2026-01-16 MIDDLEFIELD BANC CORP (MBCN) Delisted Mixed +1,039 $35.8K EDGAR
2025-12-18 MIDDLEFIELD BANC CORP (MBCN) Delisted Mixed +12,309 $455.4K EDGAR
2025-08-07 MIDDLEFIELD BANC CORP (MBCN) Delisted Mixed +1,068 $29.0K EDGAR
2025-03-03 MIDDLEFIELD BANC CORP (MBCN) Delisted Mixed +1,068 $26.2K EDGAR
2025-02-24 MIDDLEFIELD BANC CORP (MBCN) Delisted Buy (P) +48 $1.2K EDGAR
2025-02-04 MIDDLEFIELD BANC CORP (MBCN) Delisted Buy (P) +300 $7.7K EDGAR
2025-01-23 MIDDLEFIELD BANC CORP (MBCN) Delisted Grant (A) $0 EDGAR
2024-09-04 MIDDLEFIELD BANC CORP (MBCN) Delisted Grant (A) $0 EDGAR
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Codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.