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.
Loading insider history…
Disclosed Exposure
$104.49M
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 | — | $114.95 | — | $0 | 61 | 2026-06-15 |
| NUE | Director | 4,610 | $272.16 | $1.25M | $0 | 4 | 2026-06-03 |
| HON | Director | 3,159 | $235.04 | $742.5K | $0 | 9 | 2026-05-26 |
| TT | Executive Chair | 183,095 | $482.25 | $88.30M | -$308.88M | 61 | 2021-12-09 |
| IRM | Director | — | $124.73 | — | $0 | 1 | 2015-03-24 |
| IR | President and CEO | 167,166 | $84.94 | $14.20M | -$23.77M | 41 | 2013-10-02 |
Recent Filings · Page 13 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 |
|---|---|---|---|---|---|
| 2015-06-15 | PPG | Grant (A) | — | $0 | EDGAR |
| 2015-04-17 | PPG | Grant (A) | — | $0 | EDGAR |
| 2015-03-26 | TT | Sell (S) | −29,033 | -$1.97M | EDGAR |
| 2015-03-24 | IRM | Grant (A) | — | $0 | EDGAR |
| 2015-03-19 | TT | Sell (S) | −29,033 | -$1.97M | EDGAR |
| 2015-03-12 | TT | Sell (S) | −29,033 | -$1.93M | EDGAR |
| 2015-03-05 | TT | Sell (S) | −29,033 | -$1.95M | EDGAR |
| 2015-02-27 | TT | Tax (F) | −6,147 | -$419.1K | EDGAR |
| 2015-02-26 | TT | Tax (F) | −8,828 | -$604.9K | EDGAR |
| 2015-02-25 | TT | Mixed | +116,132 | -$7.27M | 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.