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THOMAS H DECKER

CIK 1018462 · last filed 2026-03-09

THOMAS H DECKER is a corporate insider who has filed 20 SEC Form 4 insider transactions across 1 company since 2020. The most recent filing shows the insider sold $70.4K of MXC on Mar 9, 2026. Across all open-market trades the lifetime net is −$405.0K, making them a net seller over the disclosed history. Current disclosed insider exposure totals $271.9K 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

$271.9K

Companies

1

Total Filings

20

Lifetime Open-Market Net

-$405.0K

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
MXC Director 31,073 $8.75 $271.9K -$405.0K 19 2026-03-09

Recent Filings

20 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
2026-03-09 MXC Sell (S) −5,000 -$70.4K EDGAR
2026-03-03 MXC Notice (144) −10,000 -$127.0K EDGAR
2024-03-19 MXC Mixed +5,000 $16.7K EDGAR
2023-03-17 MXC Buy (P) +1,900 $20.5K EDGAR
2022-12-13 MXC Buy (P) +2,600 $32.8K EDGAR
2022-12-12 MXC Mixed +5,000 $16.7K EDGAR
2022-12-12 MXC Mixed +5,000 $16.7K EDGAR
2022-09-27 MXC Buy (P) +3,300 $49.3K EDGAR
2022-09-02 MXC Buy (P) +2,202 $40.2K EDGAR
2022-03-08 MXC Sell (S) −12,102 -$284.4K EDGAR
Showing 1–10 of 20
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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.