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MATTHEW M RIZAI

CIK 1013631 · Chairman & CEO · last filed 2019-05-21

MATTHEW M RIZAI is a Chairman & CEO who has filed 31 SEC Form 4 insider transactions across 1 company since 2015. The most recent filing, for WK, was dated Jun 17, 2026. Across all open-market trades the lifetime net is −$31.8M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $14.8M 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

$14.79M

Companies

1

Total Filings

31

Lifetime Open-Market Net

-$31.80M

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 Chairman & CEO 301,596 $49.05 $14.79M -$31.80M 15 2019-05-21

Recent Filings

31 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
2026-06-17 WK Notice (144) −20,204 -$986.6K EDGAR
2026-03-05 WK Notice (144) −71,429 -$4.60M EDGAR
2026-02-20 WK Notice (144) −50,000 -$3.00M EDGAR
2026-01-21 WK Notice (144) −30,364 -$2.43M EDGAR
2026-01-02 WK Notice (144) −25,980 -$2.25M EDGAR
2025-12-17 WK Notice (144) −60,000 -$5.31M EDGAR
2025-11-12 WK Notice (144) −78,421 -$7.29M EDGAR
2025-10-14 WK Notice (144) −50,000 -$4.43M EDGAR
2025-10-03 WK Notice (144) −40,000 -$3.50M EDGAR
2025-08-01 WK Notice (144) −50,000 -$3.88M EDGAR
Showing 1–10 of 31
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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.