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Dean Warren Butler

CIK 1791047 · Sr VP and CFO · last filed 2026-05-22

Dean Warren Butler is a Sr VP and CFO who has filed 42 SEC Form 4 insider transactions across 3 companies since 2019. The most recent filing, for PXLW, was dated May 22, 2026. Across all open-market trades the lifetime net is −$8.8M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $14.7M 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

$14.72M

Companies

3

Total Filings

42

Lifetime Open-Market Net

-$8.82M

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
PXLW Director 33,949 $5.84 $198.3K $0 5 2026-05-22
SLAB Sr VP and CFO 43,767 $217.25 $9.51M $0 6 2026-05-19
SYNA See Remarks 45,231 $110.87 $5.01M -$8.82M 28 2024-02-22

Recent Filings

42 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
2026-05-22 PXLW Grant (A) +8,000 $0 EDGAR
2026-05-19 SLAB Tax (F) −6,291 -$1.36M EDGAR
2026-05-01 SLAB Grant (A) +152 $13.1K EDGAR
2026-02-17 SLAB Grant (A) +11,033 $0 EDGAR
2025-11-12 SLAB Grant (A) +177 $15.3K EDGAR
2025-05-27 PXLW Grant (A) +176,883 $0 EDGAR
2025-05-19 SLAB Mixed +10,747 -$538.2K EDGAR
2024-05-17 SLAB Grant (A) +27,949 $0 EDGAR
2024-05-16 PXLW Grant (A) +53,543 $0 EDGAR
2024-05-14 SYNA Notice (144) −13,894 -$1.25M EDGAR
Showing 1–10 of 42
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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.