Home

STEVE DUBIN

CIK 1265123 · Chief Executive Officer · last filed 2025-06-13

"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.

Loading insider history…
Disclosed Exposure

$182.7K

Companies

3

Total Filings

22

Lifetime Open-Market Net

$132.8K

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
ACET Director 22,700 $8.05 $182.7K $12.0K 8 2025-06-13
NCNA Director — $1.95 — $0 1 2024-08-23
MARTEK BIOSCIENCES CORP (MATK) Delisted Chief Executive Officer 0 — — $120.8K 12 2011-02-25

Recent Filings · Page 2 of 3

22 filings
Form 4 transactions across all companies, newest first.
Filed Symbol Action Net Shares Net $ Link
2011-02-25 MARTEK BIOSCIENCES CORP (MATK) Delisted U −32,462 -$1.02M EDGAR
2010-07-07 MARTEK BIOSCIENCES CORP (MATK) Delisted Buy (P) +2,000 $41.9K EDGAR
2010-03-23 MARTEK BIOSCIENCES CORP (MATK) Delisted Mixed +6,342 -$73.8K EDGAR
2010-01-27 MARTEK BIOSCIENCES CORP (MATK) Delisted Grant (A) — $0 EDGAR
2010-01-19 MARTEK BIOSCIENCES CORP (MATK) Delisted Grant (A) — $0 EDGAR
2009-03-23 MARTEK BIOSCIENCES CORP (MATK) Delisted Mixed +4,060 -$36.4K EDGAR
2009-01-20 MARTEK BIOSCIENCES CORP (MATK) Delisted Grant (A) — $0 EDGAR
2008-03-21 MARTEK BIOSCIENCES CORP (MATK) Delisted Mixed +2,360 -$37.7K EDGAR
2008-01-18 MARTEK BIOSCIENCES CORP (MATK) Delisted Grant (A) — $0 EDGAR
2007-12-18 MARTEK BIOSCIENCES CORP (MATK) Delisted Buy (P) +1,000 $28.2K EDGAR
Showing 11–20 of 22
Page 2 of 3
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.