Michael S Williams

CIK 1554176 · Chief Executive Officer · last filed 2026-03-02

Michael S Williams is a Chief Executive Officer who has filed 41 SEC Form 4 insider transactions across 2 companies since 2013. The most recent filing, for TMST, was dated Mar 2, 2026. Across all open-market trades the lifetime net is −$6.3M, making them a net seller over the disclosed history.

"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

$0

Companies

2

Total Filings

41

Lifetime Open-Market Net

-$6.29M

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
Metallus Inc. (TMST) Delisted Chief Executive Officer 734,858 $20.40 $14.99M -$4.54M 27 2026-03-02
UNITED STATES STEEL CORP (X) Delisted Sr VP-Strategic Plan & Bus Dev 57,569 $54.84 $3.16M -$1.75M 5 2015-02-26

Recent Filings

41 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
2026-03-02 Metallus Inc. (TMST) Delisted Mixed +48,976 -$495.1K EDGAR
2026-02-12 Metallus Inc. (TMST) Delisted Mixed +21,842 -$396.6K EDGAR
2026-02-04 Metallus Inc. (TMST) Delisted Sell (S) −32,730 -$691.7K EDGAR
2026-01-16 Metallus Inc. (TMST) Delisted Sell (S) −603 -$12.7K EDGAR
2026-01-15 MTUS Notice (144) −33,333 -$700.0K EDGAR
2026-01-09 Metallus Inc. (TMST) Delisted Sell (S) −19,297 -$368.6K EDGAR
2025-12-18 Metallus Inc. (TMST) Delisted Sell (S) −14,037 -$267.4K EDGAR
2025-12-17 MTUS Notice (144) −33,334 -$633.3K EDGAR
2025-03-10 Metallus Inc. (TMST) Delisted Grant (A) +95,900 $0 EDGAR
2025-03-03 Metallus Inc. (TMST) Delisted Tax (F) −33,514 -$483.9K EDGAR
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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.