Steven D Rubin

CIK 1381874 · Executive VP-Administration · last filed 2026-06-26

"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

$50.96M

Companies

14

Total Filings

140

Lifetime Open-Market Net

$76.6K

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
NAGE Director $3.24 $0 2 2026-06-26
ELOX Director $12.95 $0 7 2026-06-10
RDVT Director 147,767 $69.20 $10.23M -$389.3K 11 2026-06-05
ENTX Director 15,000 $3.08 $46.2K $19.4K 2 2026-02-17
COCP Director 2,660,242 $0.88 $2.35M $0 7 2026-01-13
OPK Executive VP-Administration 26,716,294 $1.44 $38.34M $436.2K 39 2025-05-29
Niagen Bioscience, Inc. (CDXC) Delisted Director 7,000 $7.87 $55.1K $10.2K 10 2024-06-24
Castle Brands Inc (ROX) Delisted Director 22,500 $0 11 2019-10-09
VBI Vaccines Inc/BC (VBIV) Delisted Director 1,875 $0.07 $122 $0 4 2018-06-18
BCDA Interim CEO and Interim CFO 187 $0.77 $145 $0 1 2016-08-12
Fluent, Inc. (IDI) Delisted Director 100,000 $0 5 2016-06-03
Fluent, Inc. (IDI.WS) Delisted Director $0 1 2010-01-13
DREAMS INC (DRJ) Delisted Director $0 3 2009-08-05
Ideation Acquisition Corp. (IDI.U) Delisted Secretary 157,500 $0 1 2007-11-28

Recent Filings · Page 6 of 14

140 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
2019-05-10 OPK Buy (P) +10,000 $21.4K EDGAR
2019-03-07 OPK Buy (P) +8,000 $20.5K EDGAR
2019-03-01 Castle Brands Inc (ROX) Delisted Grant (A) +15,000 $0 EDGAR
2019-02-05 OPK Mixed +19,232 -$3.8K EDGAR
2019-01-18 Castle Brands Inc (ROX) Delisted Exer (M) +100,000 $23.0K EDGAR
2018-09-24 COCP Grant (A) $0 EDGAR
2018-06-26 Niagen Bioscience, Inc. (CDXC) Delisted Grant (A) $0 EDGAR
2018-06-22 OPK Grant (A) $0 EDGAR
2018-06-19 ELOX Grant (A) $0 EDGAR
2018-06-18 VBI Vaccines Inc/BC (VBIV) Delisted Exer (M) +18,750 $0 EDGAR
Showing 5160 of 140
Page 6 of 14
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.