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Mark A Zorko

CIK 1346585 · Interim CFO · last filed 2026-06-03

Mark A Zorko is an Interim CFO who has filed 36 SEC Form 4 insider transactions across 5 companies since 2009. The most recent filing, for NUS, was dated Jun 3, 2026. Across all open-market trades the lifetime net is −$22.6K, making them a net seller over the disclosed history. Current disclosed insider exposure totals $295.1K 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

$295.1K

Companies

5

Total Filings

36

Lifetime Open-Market Net

-$22.6K

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
NUS Director 60,586 $4.87 $295.1K $0 3 2026-06-03
WESTELL TECHNOLOGIES INC (WSTL) Delisted Director 49,916 — — $0 5 2020-09-30
PPIH Director 0 $26.22 $0 -$174.6K 4 2019-01-14
Perma-Pipe International Holdings, Inc. (MFRI) Delisted Director 7,983 — — $75.8K 14 2016-04-20
LANDAUER INC (LDR) Delisted Interim CFO 1,500 — — $76.2K 1 2014-08-12

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
2026-06-03 NUS Grant (A) +26,643 $0 EDGAR
2025-06-03 NUS Grant (A) +18,008 $0 EDGAR
2024-09-12 NUS Grant (A) +15,935 $0 EDGAR
2020-09-30 WESTELL TECHNOLOGIES INC (WSTL) Delisted Grant (A) +4,032 $0 EDGAR
2019-09-18 WESTELL TECHNOLOGIES INC (WSTL) Delisted Grant (A) +21,014 $0 EDGAR
2019-01-14 PPIH Mixed — -$27.8K EDGAR
2019-01-07 PPIH Sell (S) −7,983 -$67.8K EDGAR
2018-09-12 WESTELL TECHNOLOGIES INC (WSTL) Delisted Grant (A) +10,139 $0 EDGAR
2018-06-18 PPIH Grant (A) — $0 EDGAR
2018-06-18 PPIH Grant (A) — $0 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.