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Constantine Petropoulos

CIK 1622588 · See Remarks · last filed 2026-08-14

Constantine Petropoulos is a corporate insider who has filed 9 SEC Form 4 insider transactions across 1 company since 2014. The most recent filing, for PKE, was dated Aug 14, 2026. Across all open-market trades the lifetime net is −$90.0K, making them a net seller over the disclosed history. 11 SEC filings were submitted jointly with PARK ELECTROCHEMICAL CORP.

"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

$0

Companies

1

Total Filings

9

Lifetime Open-Market Net

-$90.0K

Filer Profile

Reported Address
48 SOUTH SERVICE ROAD
SUITE 300
MELVILLE, NY 11747
Related Filers
PARK ELECTROCHEMICAL CORP — 11 joint filings, latest 2026-08-14
Profile details as reported on the filer's SEC submissions — for individual insiders the address is often in care of the issuer. Related filers are identified from jointly filed SEC submissions and shared reported addresses. View filings on SEC EDGAR.

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
PKE See Remarks 0 $31.28 $0 -$90.0K 8 2026-08-14

Recent Filings

9 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
2026-08-14 PKE Grant (A) — $0 EDGAR
2026-07-28 PKE Mixed — -$55.0K EDGAR
2026-07-27 PKE Notice (144) −2,500 -$90.0K EDGAR
2025-07-18 PKE Grant (A) — $0 EDGAR
2021-04-06 PKE Grant (A) — $0 EDGAR
2020-04-21 PKE Grant (A) — $0 EDGAR
2019-05-08 PKE Grant (A) — $0 EDGAR
2016-01-14 PKE Grant (A) — $0 EDGAR
2014-10-17 PKE Grant (A) — $0 EDGAR
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.