MARTIN J. VANDERPLOEG

CIK 1014008 · CEO · 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

$35.63M

Companies

1

Total Filings

70

Lifetime Open-Market Net

-$348.41M

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
WK Director 728,090 $48.93 $35.63M -$348.41M 70 2026-06-03

Recent Filings · Page 2 of 7

70 filings
Form 4 transactions across all companies, newest first.
Filed Symbol Action Net Shares Net $ Link
2024-08-13 WK Buy (P) +4,000 $300.0K EDGAR
2024-06-03 WK Grant (A) +2,817 $0 EDGAR
2024-02-20 WK Mixed +2,648 -$78.4K EDGAR
2024-02-05 WK Tax (F) −8,004 -$763.3K EDGAR
2023-09-06 WK Tax (F) −1,577 -$174.1K EDGAR
2023-06-01 WK Grant (A) +2,217 $0 EDGAR
2023-02-21 WK Mixed +1,939 -$120.7K EDGAR
2023-02-07 WK Tax (F) −7,211 -$658.1K EDGAR
2023-02-03 WK Mixed +56,709 $5.26M EDGAR
2022-09-06 WK Tax (F) −2,035 -$132.1K EDGAR
Showing 1120 of 70
Page 2 of 7
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.