Lang Matthew
Officer · GPCR, MTSR, LYEL
As of 2026-09-16, Lang Matthew has 14 Form 4 transactions on record across 3 companies — 10 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 |
|---|
14 award / exercise / gift records — not counted as purchases
| Date | Company | Action | Shares | Owned after | Filing |
|---|---|---|---|---|---|
| 2026-04-15 | GPCR | Award / grant | 184,614 | 184,614 | Form 4 |
| 2026-04-15 | GPCR | Award / grant | 223,776 | 223,776 | Form 4 |
| 2025-11-13 | MTSR | Disposition | 325,000 | 0 | Form 4 |
| 2025-11-13 | MTSR | Disposition | 12,500 | 0 | Form 4 |
| 2025-11-13 | MTSR | Award / grant | 12,500 | 12,500 | Form 4 |
| 2025-11-13 | MTSR | Disposition | 46,875 | 0 | Form 4 |
| 2025-11-13 | MTSR | Disposition | 325,000 | 0 | Form 4 |
| 2025-11-13 | MTSR | Disposition | 12,500 | 0 | Form 4 |
| 2025-11-13 | MTSR | Award / grant | 12,500 | 12,500 | Form 4 |
| 2025-11-13 | MTSR | Disposition | 46,875 | 0 | Form 4 |
| 2025-05-20 | MTSR | Award / grant | 46,875 | 46,875 | Form 4 |
| 2025-02-10 | LYEL | Award / grant | 450,000 | 450,000 | Form 4 |
| 2025-02-10 | LYEL | Award / grant | 56,250 | 56,250 | Form 4 |
| 2025-02-10 | LYEL | Award / grant | 112,500 | 162,500 | 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.