Mark A Zorko
CIK 1346585 · Interim CFO · last filed 2026-06-03
"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
$331.4K
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 | $5.47 | $331.4K | $0 | 3 | 2026-06-03 |
| WESTELL TECHNOLOGIES INC (WSTL) Delisted | Director | 49,916 | — | — | $0 | 5 | 2020-09-30 |
| PPIH | Director | 0 | $25.36 | $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 · Page 4 of 4
36 filingsForm 4 transactions across all companies, newest first.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2009-12-22 | Perma-Pipe International Holdings, Inc. (MFRI) Delisted | Buy (P) | +2,902 | $18.9K | EDGAR |
| 2009-11-17 | — | Buy (P) | +40,000 | $21.0K | |
| 2009-06-25 | Perma-Pipe International Holdings, Inc. (MFRI) Delisted | Grant (A) | — | $0 | EDGAR |
| 2008-12-17 | — | Grant (A) | — | $0 | |
| 2008-06-13 | — | Buy (P) | +20,000 | $35.3K | |
| 2007-09-19 | — | Grant (A) | — | $0 |
Showing 31–36 of 36
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Page 4 of 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.