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NACHUM SHAMIR

CIK 1622164 · President & CEO · last filed 2026-07-01

NACHUM SHAMIR is a President & CEO who has filed 36 SEC Form 4 insider transactions across 6 companies since 2014. The most recent filing, for STXS, was dated Jul 1, 2026. Across all open-market trades the lifetime net is −$16.7M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $886.7K across reported positions.

"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

$886.7K

Companies

6

Total Filings

36

Lifetime Open-Market Net

-$16.69M

Filer Profile

Reported Address
12212 TECHNOLOGY BLVD
AUSTIN, TX 78727
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
STXS Director 179,327 $1.29 $231.3K $0 4 2026-07-01
MDWD Director 49,990 $13.11 $655.4K $84.0K 1 2026-06-04
STRATA Skin Sciences, Inc. (SSKN) Delisted Director 28,987 $0.15 $4.3K $103.7K 6 2023-07-07
IsoPlexis Corp (ISO) Delisted Director 0 $0.76 $0 $97.1K 3 2023-03-21
LMNX President & CEO 0 $9.16 $0 -$16.98M 19 2021-07-15
CGNT Director 0 $8.02 $0 $0 3 2018-04-23

Recent Filings

36 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
2026-07-01 STXS Grant (A) +43,103 $0 EDGAR
2026-06-04 MDWD Buy (P) +6,000 $84.0K EDGAR
2026-01-02 STXS Grant (A) +46,948 $0 EDGAR
2025-07-03 STXS Grant (A) +43,668 $0 EDGAR
2025-01-02 STXS Grant (A) +45,608 $0 EDGAR
2023-07-07 STRATA Skin Sciences, Inc. (SSKN) Delisted Grant (A) +38,835 $40.0K EDGAR
2023-03-21 IsoPlexis Corp (ISO) Delisted Disp (D) −50,253 $0 EDGAR
2022-09-01 IsoPlexis Corp (ISO) Delisted Buy (P) +50,253 $97.1K EDGAR
2022-08-24 IsoPlexis Corp (ISO) Delisted Grant (A) — $0 EDGAR
2022-07-05 STRATA Skin Sciences, Inc. (SSKN) Delisted Grant (A) +43,244 $40.0K EDGAR
Showing 1–10 of 36
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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.