Home

Mark Adams

CIK 1349123 · President and CEO · last filed 2026-08-03

Mark Adams is a President and CEO who has filed 115 SEC Form 4 insider transactions across 5 companies since 2007. The most recent filing, for CORZ, was dated Aug 3, 2026. Across all open-market trades the lifetime net is −$19.7M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $510.4M 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.

Loading insider history…
Disclosed Exposure

$510.45M

Companies

5

Total Filings

115

Lifetime Open-Market Net

-$19.71M

Filer Profile

Reported Address
C/O PENGUIN SOLUTIONS, INC.
45800 NORTHPORT LOOP WEST
FREMONT, CA 94538
Profile details as reported on the filer's SEC submissions — for individual insiders the address is often in care of the issuer. Related filers are identified from jointly filed SEC submissions and shared reported addresses. View filings on SEC EDGAR.

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
CORZ Director 27,594 $17.39 $479.7K $0 1 2026-08-03
CDNS Director 12,927 $325.17 $4.20M -$3.57M 22 2026-05-11
Penguin Solutions, Inc. (SGH) Delisted President and CEO 992,823 $20.85 $20.70M $192.0K 30 2026-01-21
STX Director 17,001 $916.79 $15.59M -$721.9K 11 2025-10-28
MU President 452,266 $1083.83 $490.18M -$15.62M 48 2015-10-22

Recent Filings

115 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
2026-08-03 CORZ Grant (A) +27,594 $0 EDGAR
2026-05-11 CDNS Mixed +714 $0 EDGAR
2026-01-21 Penguin Solutions, Inc. (SGH) Delisted Tax (F) −12,513 -$249.8K EDGAR
2025-10-28 STX Grant (A) — $0 EDGAR
2025-10-22 Penguin Solutions, Inc. (SGH) Delisted Tax (F) −11,419 -$248.2K EDGAR
2025-10-21 STX Mixed +2,046 -$145.8K EDGAR
2025-10-16 Penguin Solutions, Inc. (SGH) Delisted Mixed +53,136 -$1.22M EDGAR
2025-10-01 Penguin Solutions, Inc. (SGH) Delisted Grant (A) +108,656 $0 EDGAR
2025-07-22 Penguin Solutions, Inc. (SGH) Delisted Tax (F) −11,418 -$278.9K EDGAR
2025-05-12 CDNS Grant (A) +779 $0 EDGAR
Showing 1–10 of 115
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.