Graham G. Walmsley
Insider transactions at 2 companies
This page shows all SEC Form 4 filings attributed to Graham G. Walmsley. Form 4 disclosures are required whenever a corporate insider — director, officer, or 10%+ shareholder — buys, sells, or receives company stock. Each row represents a separate reported transaction. All data is sourced directly from the SEC EDGAR public database.
| Company | Title | Type | Shares | Price | Value | Date |
|---|---|---|---|---|---|---|
| 0001744659 | Disposition | 93,000 | — | — | Dec 9, 2025 | |
| 0001744659 | Option Exercise | 23,832 | $19.97 | $475,925 | Oct 8, 2025 | |
| 0001744659 | Award / Grant | 9,398 | — | — | Jun 3, 2025 | |
| 0001744659 | Purchase | 58,691 | $43.01 | $2,524,300 | Mar 25, 2025 | |
| 0001744659 | Purchase | 200,000 | $48.00 | $9,600,000 | Jan 30, 2025 | |
| OLMA | Sale | 700,761 | $6.75 | $4,730,137 | Dec 17, 2024 | |
| OLMA | Purchase | 700,761 | $6.75 | $4,730,137 | Dec 13, 2024 | |
| OLMA | Sale | 700,000 | $14.85 | $10,395,000 | Jun 4, 2024 | |
| OLMA | Sale | 700,000 | $14.85 | $10,395,000 | Jun 4, 2024 | |
| 0001744659 | Purchase | 50,000 | $19.80 | $990,000 | Dec 8, 2023 | |
| OLMA | Purchase | 508,130 | $9.84 | $4,999,999 | Dec 5, 2023 | |
| 0001744659 | Purchase | 50,000 | $16.90 | $845,000 | Dec 1, 2023 | |
| 0001744659 | Purchase | 25,000 | $42.06 | $1,051,500 | Aug 8, 2023 | |
| 0001744659 | Purchase | 25,000 | $43.26 | $1,081,500 | Jul 28, 2023 | |
| 0001744659 | Purchase | 400,000 | $26.00 | $10,400,000 | May 19, 2023 | |
| 0001744659 | Purchase | 400,000 | $26.00 | $10,400,000 | May 19, 2023 | |
| ALXO | Purchase | 20,000 | $76.00 | $1,520,000 | Dec 14, 2020 | |
| OLMA | C | 1,400,761 | — | — | Nov 23, 2020 | |
| ALXO | C | 2,105,901 | — | — | Jul 21, 2020 | |
| 0001744659 | Option Exercise | 2,168 | $19.97 | $43,295 | Mar 30, 2020 |