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MASON P SLAINE

CIK 1079093 · last filed 2022-11-16

MASON P SLAINE is a corporate insider who has filed 11 SEC Form 4 insider transactions across 1 company since 2021. The most recent filing shows the insider sold $3.9M of CERT on Nov 16, 2022. Across all open-market trades the lifetime net is −$50.9M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $5.3M 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

$5.29M

Companies

1

Total Filings

11

Lifetime Open-Market Net

-$50.85M

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
CERT Director 906,115 $5.84 $5.29M -$50.85M 11 2022-11-16

Recent Filings

11 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
2022-11-16 CERT Sell (S) −250,000 -$3.89M EDGAR
2022-08-17 CERT Sell (S) −182,475 -$3.17M EDGAR
2022-06-03 CERT Sell (S) −250,000 -$4.89M EDGAR
2022-05-18 CERT Grant (A) — $0 EDGAR
2022-03-18 CERT Sell (S) −250,000 -$5.05M EDGAR
2022-02-02 CERT Sell (S) −50,000 -$1.33M EDGAR
2022-01-04 CERT Sell (S) −50,000 -$1.43M EDGAR
2021-12-14 CERT Sell (S) −50,000 -$1.40M EDGAR
2021-11-24 CERT Sell (S) −376,149 -$11.19M EDGAR
2021-09-14 CERT Sell (S) −620,668 -$18.50M EDGAR
Showing 1–10 of 11
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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.