MICHAEL W LAMACH
CIK 1279505 · Executive Chair · last filed 2026-09-14
MICHAEL W LAMACH is an Executive Chair who has filed 217 SEC Form 4 insider transactions across 7 companies since 2007. The most recent filing, for PPG, was dated Sep 14, 2026. Across all open-market trades the lifetime net is −$332.6M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $97.9M across reported positions. 103 SEC filings were submitted jointly with Trane Technologies plc.
"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.
$97.87M
7
217
-$332.65M
Filer Profile
ONE PPG PLACE
PITTSBURGH, PA 15272
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| PPG | Director | — | $107.52 | — | $0 | 62 | 2026-09-14 |
| CMCO | Director | 7,845 | $16.83 | $132.0K | $0 | 1 | 2026-08-19 |
| NUE | Director | 4,610 | $247.25 | $1.14M | $0 | 4 | 2026-06-03 |
| HON | Director | 3,159 | $212.55 | $671.4K | $0 | 9 | 2026-05-26 |
| TT | Executive Chair | 183,095 | $454.44 | $83.21M | -$308.88M | 61 | 2021-12-09 |
| IRM | Director | — | $111.38 | — | $0 | 1 | 2015-03-24 |
| IR | President and CEO | 167,166 | $76.08 | $12.72M | -$23.77M | 41 | 2013-10-02 |
Recent Filings
217 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-09-14 | PPG | Grant (A) | — | $0 | EDGAR |
| 2026-08-19 | CMCO | Grant (A) | +7,590 | $0 | EDGAR |
| 2026-06-15 | PPG | Grant (A) | — | $0 | EDGAR |
| 2026-06-03 | NUE | Grant (A) | +755 | $0 | EDGAR |
| 2026-05-26 | HON | Grant (A) | — | $0 | EDGAR |
| 2026-04-17 | PPG | Mixed | — | $0 | EDGAR |
| 2026-04-16 | HON | Exer (M) | +625 | $144.3K | EDGAR |
| 2026-03-13 | PPG | Grant (A) | — | $0 | EDGAR |
| 2026-01-06 | HON | Grant (A) | — | $0 | EDGAR |
| 2025-12-15 | PPG | Grant (A) | — | $0 | EDGAR |
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.