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David Polinsky

CIK 1726896 · Chief Financial Officer · last filed 2026-09-01

David Polinsky is a Chief Financial Officer who has filed 31 SEC Form 4 insider transactions across 3 companies since 2018. The most recent filing, for ERNA, was dated Sep 1, 2026. Current disclosed insider exposure totals $738.8K across reported positions. 25 SEC filings were submitted jointly with Rafael Holdings, Inc.

"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

$738.8K

Companies

3

Total Filings

31

Lifetime Open-Market Net

$0

Filer Profile

Reported Address
90 BOOTH AVENUE
ENGLEWOOD, NJ 07631
Related Filers
Rafael Holdings, Inc. — 25 joint filings, latest 2026-06-23
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
ERNA Director — $4.53 — $0 1 2026-09-01
RFL Chief Financial Officer 299,111 $2.47 $738.8K $0 18 2026-06-23
Rafael Holdings, Inc. (RFL.WS) Delisted Chief Financial Officer 260,641 $0.01 $3.7K $0 5 2025-10-28

Recent Filings

31 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
2026-09-01 ERNA Grant (A) — $0 EDGAR
2026-06-23 RFL Tax (F) −2,386 -$6.3K EDGAR
2026-03-24 RFL Tax (F) −2,318 -$3.0K EDGAR
2026-01-15 RFL Mixed +45,135 $56.4K EDGAR
2025-12-23 RFL Tax (F) −1,961 -$2.5K EDGAR
2025-10-28 Rafael Holdings, Inc. (RFL.WS) Delisted Tax (F) −4,180 -$5.6K EDGAR
2025-09-25 Rafael Holdings, Inc. (RFL.WS) Delisted Tax (F) −1,284 -$1.9K EDGAR
2025-09-22 Rafael Holdings, Inc. (RFL.WS) Delisted Tax (F) −1,970 -$2.9K EDGAR
2025-06-24 Rafael Holdings, Inc. (RFL.WS) Delisted Tax (F) −2,347 -$3.7K EDGAR
2025-05-30 Rafael Holdings, Inc. (RFL.WS) Delisted Exer (X) +76,882 $98.4K EDGAR
Showing 1–10 of 31
Page 1 of 4
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.