MICHAEL W LAMACH
CIK 1279505 · Executive Chair · last filed 2026-06-15
"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
$103.71M
Companies
6
Total Filings
215
Lifetime Open-Market Net
-$332.65M
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 |
|---|---|---|---|---|---|---|---|
| PPG | Director | — | $114.44 | — | $0 | 61 | 2026-06-15 |
| NUE | Director | 4,610 | $271.97 | $1.25M | $0 | 4 | 2026-06-03 |
| HON | Director | 3,159 | $234.85 | $741.9K | $0 | 9 | 2026-05-26 |
| TT | Executive Chair | 183,095 | $478.42 | $87.60M | -$308.88M | 61 | 2021-12-09 |
| IRM | Director | — | $124.44 | — | $0 | 1 | 2015-03-24 |
| IR | President and CEO | 167,166 | $84.44 | $14.12M | -$23.77M | 41 | 2013-10-02 |
Recent Filings · Page 16 of 22
215 filingsInsider 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 |
|---|---|---|---|---|---|
| 2013-04-19 | — | Grant (A) | — | $0 | |
| 2013-04-10 | IR | Sell (S) | −22,904 | -$1.27M | EDGAR |
| 2013-04-04 | IR | Sell (S) | −22,904 | -$1.25M | EDGAR |
| 2013-04-02 | IR | Mixed | — | -$522.8K | EDGAR |
| 2013-04-01 | IR | Grant (A) | +174 | $9.6K | EDGAR |
| 2013-03-04 | IR | Mixed | — | -$456.0K | EDGAR |
| 2013-02-26 | IR | Mixed | +126,135 | -$4.66M | EDGAR |
| 2013-02-05 | IR | Mixed | — | -$459.0K | EDGAR |
| 2013-01-24 | — | Grant (A) | — | $0 | |
| 2013-01-02 | IR | Grant (A) | +155 | $7.3K | EDGAR |
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.
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.