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William R. Gupp

CIK 1428106 · Sr VP, CLO & Secretary · last filed 2023-05-03

William R. Gupp is a Sr VP, CLO & Secretary who has filed 112 SEC Form 4 insider transactions across 2 companies since 2008. The most recent filing shows the insider had shares withheld for taxes covering $538.0K of TREX on May 3, 2023. Across all open-market trades the lifetime net is −$12.6M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $5.2M 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

$5.23M

Companies

2

Total Filings

112

Lifetime Open-Market Net

-$12.59M

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
TREX Sr VP, CLO & Secretary 106,974 $48.88 $5.23M -$12.52M 103 2023-05-03
TREX CO INC (TWP) Delisted VP,General Counsel & Secretary 47,275 — — -$71.3K 9 2009-11-17

Recent Filings

112 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
2023-05-03 TREX Tax (F) −9,861 -$538.0K EDGAR
2023-03-03 TREX Mixed −1,684 -$68.2K EDGAR
2023-03-03 TREX Mixed −1,684 -$84.9K EDGAR
2023-02-21 TREX Tax (F) −845 -$45.5K EDGAR
2023-02-16 TREX Mixed +10,129 $575.3K EDGAR
2023-02-10 TREX Mixed +1,094 -$49.5K EDGAR
2023-02-02 TREX Mixed +1,049 -$49.3K EDGAR
2023-01-20 TREX Mixed +978 -$50.5K EDGAR
2022-02-25 TREX Mixed +6,417 $526.3K EDGAR
2022-02-22 TREX Tax (F) −843 -$73.1K EDGAR
Showing 1–10 of 112
Page 1 of 12
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.