Chang David D
Insider transactions at 1 company
This page shows all SEC Form 4 filings attributed to Chang David D. 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 |
|---|---|---|---|---|---|---|
| ALLO | President and CEO | Sale | 46,668 | $1.96 | $91,469 | Mar 14, 2025 |
| ALLO | President and CEO | Sale | 46,003 | $1.68 | $77,285 | Feb 3, 2025 |
| ALLO | President and CEO | Award / Grant | 552,174 | — | — | Jan 24, 2025 |
| ALLO | President and CEO | Award / Grant | 344,828 | $2.90 | $1,000,001 | May 16, 2024 |
| ALLO | President and CEO | Tax Withholding | 53,393 | $4.33 | $231,192 | Mar 14, 2024 |
| ALLO | President and CEO | Award / Grant | 317,800 | — | — | Jan 25, 2024 |
| ALLO | President and CEO | Award / Grant | 1,924,464 | — | — | Mar 22, 2023 |
| ALLO | President and CEO | Tax Withholding | 22,340 | $5.56 | $124,210 | Mar 14, 2023 |
| ALLO | President and CEO | Sale | 23,648 | $7.65 | $180,907 | Mar 15, 2022 |
| ALLO | President and CEO | Option Exercise | 27,410 | $18.22 | $499,410 | May 24, 2021 |
| ALLO | President and CEO | Award / Grant | 80,452 | — | — | Mar 26, 2021 |
| ALLO | President and CEO | Sale | 20,513 | $38.57 | $791,186 | Mar 15, 2021 |
| ALLO | President and CEO | Gift | 205,778 | — | — | Aug 31, 2020 |
| ALLO | President and CEO | Other | 9,198 | — | — | Mar 18, 2020 |
| ALLO | President and CEO | Sale | 18,710 | $19.24 | $359,980 | Mar 16, 2020 |
| ALLO | President and CEO | Other | 9,402 | — | — | Mar 4, 2020 |
| ALLO | President and CEO | Other | 9,402 | — | — | Nov 19, 2019 |
| ALLO | President and CEO | Other | 9,391 | — | — | Oct 25, 2019 |
| ALLO | President and CEO | Other | 9,402 | — | — | Sep 23, 2019 |
| ALLO | President and CEO | Other | 9,391 | — | — | Sep 5, 2019 |
| ALLO | President and CEO | Other | 9,402 | — | — | Jul 18, 2019 |
| ALLO | President and CEO | Other | 6,388 | — | — | Jun 18, 2019 |
| ALLO | President and CEO | Other | 11,753 | — | — | May 13, 2019 |
| ALLO | President and CEO | Other | 11,753 | — | — | Apr 26, 2019 |
| ALLO | President and CEO | Award / Grant | 173,000 | — | — | Mar 13, 2019 |
| ALLO | President and CEO | C | 29,946 | — | — | Oct 15, 2018 |
| 0001510580 | EVP, R&D, Chief Medical Off. | Award / Grant | 15,000 | — | — | Sep 25, 2017 |
| 0001510580 | EVP, R&D, Chief Medical Off. | Gift | 157 | — | — | Sep 11, 2017 |
| 0001510580 | EVP, R&D, Chief Medical Off. | Sale | 300 | $83.36 | $25,008 | May 1, 2017 |
| 0001510580 | EVP, R&D, Chief Medical Off. | Sale | 3,549 | $82.00 | $291,018 | Apr 3, 2017 |
| 0001510580 | EVP, R&D, Chief Medical Off. | Sale | 4,735 | $79.71 | $377,427 | Mar 1, 2017 |
| 0001510580 | EVP, R&D, Chief Medical Off. | Award / Grant | 24,800 | — | — | Dec 22, 2016 |
| 0001510580 | EVP, R&D, Chief Medical Off. | Sale | 1,788 | $50.86 | $90,938 | Dec 20, 2016 |
| 0001510580 | EVP, R&D, Chief Medical Off. | Award / Grant | 18,500 | — | — | Dec 17, 2015 |
| 0001510580 | EVP, R&D, Chief Medical Off. | Option Exercise | 30,800 | $6.89 | $212,212 | Nov 10, 2015 |
| 0001510580 | EVP, R&D, Chief Medical Off. | Sale | 3,923 | $71.70 | $281,279 | Nov 2, 2015 |
| 0001510580 | EVP, R&D, Chief Medical Off. | Sale | 7,700 | $55.11 | $424,347 | Oct 1, 2015 |
| 0001510580 | EVP, R&D, Chief Medical Off. | Sale | 7,384 | $55.00 | $406,120 | Sep 3, 2015 |
| 0001510580 | EVP, R&D, Chief Medical Off. | Option Exercise | 7,700 | $6.89 | $53,053 | Aug 3, 2015 |
| 0001510580 | EVP, R&D, Chief Medical Off. | Sale | 2,896 | $62.31 | $180,450 | Jul 1, 2015 |
| 0001510580 | EVP, R&D, Chief Medical Off. | Purchase | 4,000 | $17.00 | $68,000 | Jun 15, 2015 |