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Michael H Tardugno

CIK 1384550 · Executive Chairman of Board · last filed 2026-07-21

Michael H Tardugno is an Executive Chairman of Board who has filed 77 SEC Form 4 insider transactions across 3 companies since 2007. The most recent filing shows the insider was granted $8.4K of IMNN on Jul 21, 2026. Across all open-market trades the lifetime net is +$419.6K, making them a net buyer over the disclosed history. Current disclosed insider exposure totals $112.6K 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

$112.6K

Companies

3

Total Filings

77

Lifetime Open-Market Net

$419.6K

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
IMNN Executive Chairman of Board 73,621 $1.53 $112.6K $25.8K 15 2026-07-21
Imunon, Inc. (CLSN) Delisted Chairman, President and CEO 16,513 $1.96 $32.4K $345.0K 56 2022-06-15
Imunon, Inc. (CLN) Delisted President & CEO 27,067 — — $48.8K 6 2008-06-18

Recent Filings

77 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
2026-07-21 IMNN Grant (A) +4,603 $8.4K EDGAR
2026-07-07 IMNN Grant (A) +4,410 $8.4K EDGAR
2026-06-29 IMNN Grant (A) +42,519 $73.1K EDGAR
2026-06-23 IMNN Grant (A) +4,629 $8.4K EDGAR
2026-06-09 IMNN Grant (A) +4,089 $8.4K EDGAR
2026-05-27 IMNN Grant (A) +3,484 $7.7K EDGAR
2026-01-06 IMNN Grant (A) — $0 EDGAR
2025-08-06 IMNN Grant (A) — $0 EDGAR
2025-03-18 IMNN Grant (A) — $0 EDGAR
2024-12-19 IMNN Grant (A) — $0 EDGAR
Showing 1–10 of 77
Page 1 of 8
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.