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Michael Tropeano

CIK 1505398 · PRESIDENT, RAPISCAN SYSTEMS · last filed 2026-08-04

Michael Tropeano is a PRESIDENT, RAPISCAN SYSTEMS who has filed 11 SEC Form 4 insider transactions across 2 companies since 2011. The most recent filing shows the insider was granted $375.0K of OSIS on Aug 4, 2026. Across all open-market trades the lifetime net is −$214.2K, making them a net seller over the disclosed history. Current disclosed insider exposure totals $1.2M 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

$1.23M

Companies

2

Total Filings

11

Lifetime Open-Market Net

-$214.2K

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
OSIS PRESIDENT, RAPISCAN SYSTEMS 5,281 $232.61 $1.23M $0 4 2026-08-04
AMERICAN SCIENCE & ENGINEERING, INC. (ASEI) Delisted SVP, GM Detection Products 2,352 — — -$214.2K 7 2016-09-12

Recent Filings

11 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
2026-08-04 OSIS Grant (A) +1,694 $375.0K EDGAR
2026-07-01 OSIS Grant (A) +75 $10.5K EDGAR
2026-01-02 OSIS Grant (A) +75 $10.5K EDGAR
2025-08-05 OSIS Grant (A) +1,594 $350.0K EDGAR
2016-09-12 AMERICAN SCIENCE & ENGINEERING, INC. (ASEI) Delisted Disp (D) −5,430 -$200.9K EDGAR
2016-05-26 AMERICAN SCIENCE & ENGINEERING, INC. (ASEI) Delisted Grant (A) +664 $0 EDGAR
2016-05-23 AMERICAN SCIENCE & ENGINEERING, INC. (ASEI) Delisted Grant (A) +302 $0 EDGAR
2015-08-04 AMERICAN SCIENCE & ENGINEERING, INC. (ASEI) Delisted Grant (A) +3,558 $0 EDGAR
2015-05-18 AMERICAN SCIENCE & ENGINEERING, INC. (ASEI) Delisted Grant (A) +302 $0 EDGAR
2015-02-11 AMERICAN SCIENCE & ENGINEERING, INC. (ASEI) Delisted Mixed — -$27.5K EDGAR
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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.