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
$104.42M
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 | — | $114.82 | — | $0 | 61 | 2026-06-15 |
| NUE | Director | 4,610 | $270.38 | $1.25M | $0 | 4 | 2026-06-03 |
| HON | Director | 3,159 | $234.22 | $739.9K | $0 | 9 | 2026-05-26 |
| TT | Executive Chair | 183,095 | $481.94 | $88.24M | -$308.88M | 61 | 2021-12-09 |
| IRM | Director | — | $123.52 | — | $0 | 1 | 2015-03-24 |
| IR | President and CEO | 167,166 | $84.90 | $14.19M | -$23.77M | 41 | 2013-10-02 |
Recent Filings · Page 11 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 |
|---|---|---|---|---|---|
| 2017-02-14 | TT | Tax (F) | −7,568 | -$616.2K | EDGAR |
| 2017-02-09 | TT | Grant (A) | +30,391 | $0 | EDGAR |
| 2017-02-07 | TT | Tax (F) | −5,496 | -$432.0K | EDGAR |
| 2017-01-05 | TT | Mixed | — | -$8.70M | EDGAR |
| 2016-12-13 | PPG | Grant (A) | — | $0 | EDGAR |
| 2016-11-14 | TT | Gift (G) | −13,909 | $0 | EDGAR |
| 2016-09-14 | PPG | Grant (A) | — | $0 | EDGAR |
| 2016-06-14 | PPG | Exer (M) | — | $0 | EDGAR |
| 2016-06-14 | PPG | Grant (A) | — | $0 | EDGAR |
| 2016-05-04 | PPG | Grant (A) | — | $0 | 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.