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John S Mega

CIK 1519013 · See Remarks · last filed 2026-03-23

John S Mega is a corporate insider who has filed 27 SEC Form 4 insider transactions across 4 companies since 2016. The most recent filing, for MPTI, was dated Mar 23, 2026. Across all open-market trades the lifetime net is −$1.0M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $526.3K 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

$526.3K

Companies

4

Total Filings

27

Lifetime Open-Market Net

-$1.02M

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
MPTI Director 5,586 $85.62 $478.3K $0 4 2026-03-23
M-tron Industries, Inc. (MPTI.WS) Delisted Director 5,344 $1.00 $5.3K $0 1 2025-12-19
LGL Director 6,625 $7.25 $48.0K $0 2 2021-12-29
L3 TECHNOLOGIES, INC. (LLL) Delisted See Remarks 19,392 $0.84 $16.3K -$1.02M 3 2017-02-22

Recent Filings

27 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
2026-03-23 MPTI Grant (A) +242 $0 EDGAR
2025-12-19 M-tron Industries, Inc. (MPTI.WS) Delisted Sell (S) — $0 EDGAR
2025-03-25 MPTI Grant (A) +402 $0 EDGAR
2024-03-25 MPTI Grant (A) +364 $0 EDGAR
2023-05-15 MPTI Grant (A) +1,266 $15.0K EDGAR
2021-12-29 LGL Grant (A) +1,267 $0 EDGAR
2020-11-06 LGL Grant (A) +513 $0 EDGAR
2017-02-22 L3 TECHNOLOGIES, INC. (LLL) Delisted Grant (A) +2,582 $0 EDGAR
2017-02-21 L3 TECHNOLOGIES, INC. (LLL) Delisted Mixed −891 -$464.9K EDGAR
2016-05-24 — Sell (S) −7,567 -$1.04M
Showing 1–10 of 27
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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.