GARY K WILLIS

CIK 1121475 · Chief Executive Officer · last filed 2026-01-06

GARY K WILLIS is a Chief Executive Officer who has filed 117 SEC Form 4 insider transactions across 4 companies since 2007. The most recent filing shows the insider was granted $32.5K of PLUG on Jan 6, 2026. Across all open-market trades the lifetime net is −$4.1M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $1.9M 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

$1.91M

Companies

4

Total Filings

117

Lifetime Open-Market Net

-$4.08M

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
PLUG Director 690,354 $2.76 $1.91M -$2.42M 91 2026-01-06
ROFIN SINAR TECHNOLOGIES INC (RSTI) Delisted Director 0 -$741.6K 16 2016-11-07
ZYGO CORP (ZIGO) Delisted Chief Executive Officer 111,646 -$991.4K 7 2013-11-13
VION PHARMACEUTICALS INC (VION) Delisted Director 85,535 $76.0K 2 2007-06-28

Recent Filings

117 filings
Form 4 transactions across all companies, newest first.
Filed Symbol Action Net Shares Net $ Link
2026-01-06 PLUG Grant (A) +16,497 $32.5K EDGAR
2025-10-03 PLUG Grant (A) +13,948 $32.5K EDGAR
2025-07-24 PLUG Grant (A) +76,531 $0 EDGAR
2025-07-03 PLUG Grant (A) +21,812 $32.5K EDGAR
2025-04-03 PLUG Grant (A) +24,074 $32.5K EDGAR
2025-01-06 PLUG Grant (A) +15,258 $32.5K EDGAR
2024-10-03 PLUG Grant (A) +14,381 $32.5K EDGAR
2024-07-03 PLUG Grant (A) +13,948 $32.5K EDGAR
2024-06-07 PLUG Grant (A) +37,375 $0 EDGAR
2024-04-03 PLUG Grant (A) +9,448 $32.5K EDGAR
Showing 110 of 117
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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.