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MICHELLE M PLUMMER

CIK 1247575 · SEVP, CFO & COO · last filed 2026-06-15

MICHELLE M PLUMMER is a SEVP, CFO & COO who has filed 21 SEC Form 4 insider transactions across 1 company since 2007. The most recent filing shows the insider sold $287.7K of GCBC on Jun 15, 2026. Across all open-market trades the lifetime net is −$1.1M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $5.3M across reported positions.

"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

$5.29M

Companies

1

Total Filings

21

Lifetime Open-Market Net

-$1.09M

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
GCBC SEVP, CFO & COO 149,887 $35.28 $5.29M -$1.09M 17 2026-06-15

Recent Filings

21 filings
Insider activity across all companies, newest first. Form 4 rows are post-trade confirmations (buys, sells, grants, exercises). Notice (144) rows are pre-trade notices of intent to sell restricted or control stock under Rule 144 — they may not all execute. Compare adjacent dates to see which notices became actual sales.
Filed Symbol Action Net Shares Net $ Link
2026-06-15 GCBC Sell (S) −10,000 -$287.7K EDGAR
2026-06-11 GCBC Notice (144) −10,000 -$282.1K EDGAR
2024-06-20 GCBC Sell (S) −9,166 -$280.0K EDGAR
2024-06-18 GCBC Notice (144) −8,966 -$274.0K EDGAR
2024-06-17 GCBC Notice (144) −200 -$6.1K EDGAR
2024-06-17 GCBC Sell (S) −3,154 -$95.6K EDGAR
2024-06-13 GCBC Notice (144) −3,154 -$95.6K EDGAR
2023-06-08 GCBC Sell (S) −10,000 -$283.5K EDGAR
2018-06-18 GCBC Mixed +10,000 $1.6K EDGAR
2018-06-11 GCBC Mixed +10,000 $1.6K EDGAR
Showing 1–10 of 21
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Form 4 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.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.