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Insider · CIK 0001381874

Steven D Rubin

directorofficer

Files at OPK (OPKO HEALTH, INC.), ELOX (Eloxx Pharmaceuticals, Inc.), NAGE (Niagen Bioscience, Inc.), COCP (Cocrystal Pharma, Inc.), ENTX (Entera Bio Ltd.), RDVT (Red Violet, Inc.). First filing Feb 11, 2026, latest Feb 17, 2026.

Steven D Rubin files SEC Form 4 as director and officer at ENTX (Entera Bio Ltd.), and also at OPK (OPKO HEALTH, INC.), ELOX (Eloxx Pharmaceuticals, Inc.), NAGE (Niagen Bioscience, Inc.), COCP (Cocrystal Pharma, Inc.) and 1 more. Since Feb 11, 2026, Steven D Rubin has reported 2 open-market buys worth $19k and 0 open-market sells worth $0, the latest filed on Feb 17, 2026.

A track record needs three past buys with six months of prices behind them; Steven D Rubin has 0, so none is measured yet.

The newest scored trade: bought $7,450 of ENTX on Feb 12, 2026, filed Feb 17, 2026, scored 53 (moderate). In the last 12 months: 2 buys worth $19k and 0 sells worth $0.

Track record
Not enough history
Fewer than three past buys with six months of prices.
Median 6-month excess
-
after past buys, n = 0
Hit rate
-
past buys that beat the index over 6 months
Open-market trades
2 / 0
$19k bought, $0 sold

Where the trades landed

Last year at the company this insider has traded most, with each buy and sell on the bar it happened.

ENTX: Entera Bio Ltd.

ENTXOct 9, 2026 · close 2.66

Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™

Signals

This insider’s open-market buys and sells, scored.

ScoreCompanyValueHoldingsPrice contextFiled
53Moderate
ENTXbuy 4
Entera Bio Ltd.
$7,450
5,000 shares
+50%+46% from low-52% from high
46Moderate
ENTXbuy 4
Entera Bio Ltd.
$12k
10,000 shares
-+28% from low-58% from high

Planned sales

Form 144 notices this insider filed before selling restricted or control stock, newest first.

FiledCompanySharesValueSale datePast 3 months
Mar 19, 2025 RDVT
Red Violet, Inc.
10,000
0.07% of outstanding
$389kMar 19, 2025none

Transactions

Every row this insider has filed, 17 in all, newest first.

DateCompanyTransactionSharesPriceValueHoldings afterFiled
Jun 24, 2026NAGE
Niagen Bioscience, Inc.
AGrant or award
Stock Option (right to buy)derivative
+31,746$0.00$031,746Jun 26, 2026
Jun 8, 2026ELOX
Eloxx Pharmaceuticals, Inc.
AGrant or award
Stock Option (Right to Buy)derivative
+4,018$0.00$04,018Jun 10, 2026
Jun 4, 2026RDVT
Red Violet, Inc.
AGrant or award
Common Stock
+2,179--147,767Jun 5, 2026
Jan 24, 2026ELOX
Eloxx Pharmaceuticals, Inc.
MOption exercise
Common Stock
+1,875--14,625May 8, 2026
Sep 19, 2025ELOX
Eloxx Pharmaceuticals, Inc.
AGrant or award
Stock Option (Right to Buy)derivative
+179,854$0.00$0179,854May 8, 2026
Jan 24, 2026ELOX
Eloxx Pharmaceuticals, Inc.
MOption exercise
Restricted Stock Unitsderivative
-1,875$0.00$01,875May 8, 2026
Feb 12, 2026ENTX
Entera Bio Ltd.
POpen-market purchase
Ordinary Shares, par value NIS 0.0000769 per share
+5,000$1.49$7,45015,000Feb 17, 2026
Feb 9, 2026ENTX
Entera Bio Ltd.
POpen-market purchase
Ordinary Shares, par value NIS 0.0000769 per share
+10,000$1.20$12k10,000Feb 11, 2026
Jan 9, 2026COCP
Cocrystal Pharma, Inc.
AGrant or award
Stock Options (Right to Buy)derivative
+16,410$0.00$016,410Jan 13, 2026
Dec 19, 2025RDVT
Red Violet, Inc.
AGrant or award
Common Stock
+4,450--145,588Dec 22, 2025
Jun 24, 2025NAGE
Niagen Bioscience, Inc.
AGrant or award
Stock Option (right to buy)derivative
+20,000$0.00$020,000Jun 25, 2025
May 27, 2025OPK
OPKO HEALTH, INC.
AGrant or award
Stock Option (Right to Buy)derivative
+437,500$0.00$0437,500May 29, 2025
Jan 24, 2025ELOX
Eloxx Pharmaceuticals, Inc.
MOption exercise
Common Stock
+3,750$0.00$015,750Jan 28, 2025
Jan 24, 2025ELOX
Eloxx Pharmaceuticals, Inc.
MOption exercise
Restricted Stock Unitsderivative
-3,750$0.00$03,750Jan 28, 2025
Nov 4, 2024RDVT
Red Violet, Inc.
AGrant or award
Common Stock
+8,000--151,138Nov 5, 2024
Oct 16, 2024ELOX
Eloxx Pharmaceuticals, Inc.
AGrant or award
Common Stock
+12,000$0.00$012,000Oct 17, 2024
Oct 9, 2024COCP
Cocrystal Pharma, Inc.
AGrant or award
Common Stock
+18,957--2,660,242Oct 11, 2024

Questions about Steven D Rubin

Answered from the filings on this page, as of the latest one.

Is Steven D Rubin buying or selling?

In the last 12 months Steven D Rubin reported 2 open-market buys worth $19k and 0 open-market sells worth $0 on SEC Form 4; the latest was bought $7,450 of ENTX on Feb 12, 2026. Grants, option exercises and tax withholding are not counted.

How did Steven D Rubin's past buys perform?

Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and Steven D Rubin has 0.

Where does Steven D Rubin file Form 4?

Steven D Rubin has filed Form 4 at ENTX (Entera Bio Ltd.); OPK (OPKO HEALTH, INC.) as Executive VP-Administration; ELOX (Eloxx Pharmaceuticals, Inc.); NAGE (Niagen Bioscience, Inc.); COCP (Cocrystal Pharma, Inc.) and 1 more. A Form 4 is required of officers, directors and holders of more than 10% of a share class within two business days of a trade.

Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.

Steven D Rubin: insider trades and track record | InsiderTell