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Who

David Polinsky

Chief Financial Officer

Company insider

Files Form 4 as: Chief Financial Officer, Rafael Holdings; Director, Ernexa Therapeutics; Director, Innovative Food Holdings.

In numbers

Trades disclosed
41
Buys
1
Sells
0
Bought
$125K
Sold
$0
Companies
3
Companies where not an officer
2
First trade
28 Mar 2018
Last trade
21 Sep 2026
Last filed
23 Sep 2026

Companies traded

Where they are an officer
RFL Rafael HoldingsOfficer · Biotechnology · last 21 Sep 20260 buys · 0 sells
Everywhere else they filed: board seats, 10% stakes, other companies
ERNA Ernexa TherapeuticsDirector · Biotechnology · last 31 Aug 20260 buys · 0 sells
Innovative Food HoldingsDirector · last 23 Mar 20201 buy · 0 sells

Activity over time

1 Nov 2024 – 1 Oct 2026
101Nov 24May 25Nov 25Apr 26Oct 26

Buys above the line, sells below, each month.

Every trade

TradedCompanyWhatAmount
21 Sep 2026filed 23 Sep 2026RFL Rafael HoldingsBiotechnologySEC FORM 4 Code F$4,1052,027 at $2.03filing
21 Sep 2026filed 23 Sep 2026RFL Rafael HoldingsBiotechnologySEC FORM 4 Code F$4,1152,027 at $2.03filing
31 Aug 2026filed 1 Sep 2026ERNA Ernexa Therapeuticsoption or derivative · BiotechnologySEC FORM 4 Code A—5,083 at $0.00filing
31 Aug 2026filed 1 Sep 2026ERNA Ernexa Therapeuticsoption or derivative · BiotechnologySEC FORM 4 Code A—5,083 at $0.00filing
21 Jun 2026filed 23 Jun 2026RFL Rafael HoldingsBiotechnologySEC FORM 4 Code F$6,2872,386 at $2.64filing
21 Jun 2026filed 23 Jun 2026RFL Rafael HoldingsBiotechnologySEC FORM 4 Code F$6,2992,386 at $2.64filing
21 Mar 2026filed 24 Mar 2026RFL Rafael HoldingsBiotechnologySEC FORM 4 Code F$2,9552,318 at $1.28filing
21 Mar 2026filed 24 Mar 2026RFL Rafael HoldingsBiotechnologySEC FORM 4 Code F$2,9672,318 at $1.28filing
13 Jan 2026filed 15 Jan 2026RFL Rafael HoldingsBiotechnologySEC FORM 4 Code F$6,0744,865 at $1.25filing
13 Jan 2026filed 15 Jan 2026RFL Rafael HoldingsBiotechnologySEC FORM 4 Code A$62K50,000 at $1.25filing
13 Jan 2026filed 15 Jan 2026RFL Rafael HoldingsBiotechnologySEC FORM 4 Code F$6,0814,865 at $1.25filing
13 Jan 2026filed 15 Jan 2026RFL Rafael HoldingsBiotechnologySEC FORM 4 Code A$63K50,000 at $1.25filing
21 Dec 2025filed 23 Dec 2025RFL Rafael HoldingsBiotechnologySEC FORM 4 Code F$2,5301,961 at $1.29filing
25 Oct 2025filed 28 Oct 2025RFL Rafael HoldingsBiotechnologySEC FORM 4 Code F$5,6434,180 at $1.35filing
23 Sep 2025filed 25 Sep 2025RFL Rafael HoldingsBiotechnologySEC FORM 4 Code F$1,9001,284 at $1.48filing
21 Sep 2025filed 22 Sep 2025RFL Rafael HoldingsBiotechnologySEC FORM 4 Code F$2,9351,970 at $1.49filing
21 Jun 2025filed 24 Jun 2025RFL Rafael HoldingsBiotechnologySEC FORM 4 Code F$3,7552,347 at $1.60filing
29 May 2025filed 30 May 2025RFL Rafael Holdingsoption or derivative · BiotechnologySEC FORM 4 Code X—76,882 at $0.00filing
29 May 2025filed 30 May 2025RFL Rafael HoldingsBiotechnologySEC FORM 4 Code X$98K76,882 at $1.28filing
21 Mar 2025filed 25 Mar 2025RFL Rafael HoldingsBiotechnologySEC FORM 4 Code F$4,5902,378 at $1.93filing

News

No headline names them, or the companies they trade most, lately.

Sectors

Not placed1

Buys in green, sells in red, by the company’s sector.

Related people

Howard S. JonasDirector and 10% owner · Exec Chairman, CEO & President at Rafael Holdings, filing Form 4 there in the last year
Markus SiegerDirector · Director at Rafael Holdings, filing Form 4 there in the last year
Michael J. WeissDirector · Director at Rafael Holdings, filing Form 4 there in the last year
Mark N. SteinDirector · Director at Rafael Holdings, filing Form 4 there in the last year
Alan GraysonDirector · Director at Rafael Holdings, filing Form 4 there in the last year