Lam Thomas S.
Director · ASTH
As of 2026-09-17, Lam Thomas S. has 10 Form 4 transactions on record across 1 company — 5 in the trailing 12 months.
Everything this person has disclosed to the SEC on Form 4 — across every company they file for — reconstructed from the public record. A filing history, not a tip sheet.
Reconstructed holdings
Reconstructed from this person's own Form 4 filings — the total each filing reported owning afterward, priced at the close on the as-of date shown. A filed position can lag the real one.
Direct and indirect holdings (e.g. through a trust or fund) are tagged separately, as filed.
Trades by company
Filing ledger
| Date | Company | Action | Shares @ price | Value | Ownership Δ | Owned after | Filing |
|---|
10 award / exercise / gift records — not counted as purchases
| Date | Company | Action | Shares | Owned after | Filing |
|---|---|---|---|---|---|
| 2026-04-06 | ASTH | Award / grant | 41,667 | 465,657 | Form 4 |
| 2026-03-05 | ASTH | Withheld for tax | 9,266 | 423,990 | Form 4 |
| 2025-12-08 | ASTH | Withheld for tax | 25,866 | 433,256 | Form 4 |
| 2025-12-08 | ASTH | Option exercise | 29,502 | 459,122 | Form 4 |
| 2025-12-08 | ASTH | Option exercise | 29,502 | 0 | Form 4 |
| 2025-03-05 | ASTH | Withheld for tax | 9,235 | 429,620 | Form 4 |
| 2025-02-15 | ASTH | Other acquisition | 26,232 | 1,133,706 | Form 4 |
| 2025-02-15 | ASTH | Other acquisition | 699,896 | 6,132,802 | Form 4 |
| 2024-11-08 | ASTH | Award / grant | 13,333 | 412,188 | Form 4 |
| 2024-11-08 | ASTH | Award / grant | 26,667 | 438,855 | Form 4 |
Source: SEC Form 4 filings. Each row links to its original filing.
Research tool, not investment advice — historical frequencies, not recommendations. A product of Marovel Technologies LLC. Full terms.