Chan Phillip P.
Insider transactions at 1 company
This page shows all SEC Form 4 filings attributed to Chan Phillip P.. 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 |
|---|---|---|---|---|---|---|
| CTSO | Chief Executive Officer | Award / Grant | 100,000 | $0.64 | $64,000 | Nov 18, 2025 |
| CTSO | Chief Executive Officer | Award / Grant | 105,600 | — | — | Aug 8, 2025 |
| CTSO | Chief Executive Officer | O | 34,168 | $1.13 | $38,610 | Feb 24, 2025 |
| CTSO | Chief Executive Officer | X | 90,832 | $1.00 | $90,832 | Jan 17, 2025 |
| CTSO | Chief Executive Officer | Award / Grant | 96,000 | — | — | Apr 2, 2024 |
| CTSO | Chief Executive Officer | Purchase | 75,188 | $1.33 | $100,000 | Dec 13, 2023 |
| CTSO | Chief Executive Officer | Award / Grant | 87,000 | — | — | Jul 7, 2023 |
| CTSO | Chief Executive Officer | Option Exercise | 30,500 | $2.88 | $87,840 | Apr 3, 2023 |
| CTSO | Chief Executive Officer | Purchase | 5,859 | $1.26 | $7,382 | Dec 8, 2022 |
| CTSO | Chief Executive Officer | Purchase | 14,291 | $1.26 | $18,007 | Dec 7, 2022 |
| CTSO | Chief Executive Officer | Purchase | 35,000 | $1.70 | $59,500 | Sep 8, 2022 |
| CTSO | Chief Executive Officer | Award / Grant | 79,000 | — | — | Aug 10, 2022 |
| CTSO | Chief Executive Officer | Purchase | 2,221 | $1.85 | $4,109 | Jun 16, 2022 |
| CTSO | Chief Executive Officer | Purchase | 16,000 | $2.17 | $34,720 | Jun 9, 2022 |
| CTSO | Chief Executive Officer | Purchase | 5,462 | $4.05 | $22,121 | Dec 29, 2021 |
| CTSO | Chief Executive Officer | Purchase | 5,000 | $5.25 | $26,250 | Dec 10, 2021 |
| CTSO | Chief Executive Officer | Award / Grant | 72,000 | $8.99 | $647,280 | Apr 12, 2021 |
| CTSO | Chief Executive Officer | Option Exercise | 14,100 | $9.39 | $132,399 | May 5, 2020 |
| CTSO | President and CEO | Award / Grant | 60,000 | — | — | Feb 28, 2020 |
| CTSO | President and CEO | Purchase | 16,500 | $3.60 | $59,400 | Dec 6, 2019 |
| CTSO | President and CEO | Option Exercise | 75,000 | $3.45 | $258,750 | Aug 15, 2019 |
| CTSO | President and CEO | Award / Grant | 60,000 | — | — | Jul 22, 2019 |
| CTSO | President and CEO | Option Exercise | 20,000 | $4.33 | $86,600 | Jun 7, 2019 |
| CTSO | President and CEO | Award / Grant | 5,500 | — | — | Mar 4, 2019 |
| CTSO | President and CEO | Award / Grant | 5,500 | — | — | Mar 4, 2019 |
| CTSO | President and CEO | Option Exercise | 89,337 | $2.10 | $187,608 | Dec 7, 2018 |
| CTSO | President and CEO | Sale | 2,731 | $14.11 | $38,534 | Sep 6, 2018 |
| CTSO | President and CEO | X | 8,000 | $3.75 | $30,000 | Jun 11, 2018 |
| CTSO | President and CEO | Award / Grant | 10,300 | — | — | Mar 15, 2018 |
| CTSO | President and CEO | Award / Grant | 43,000 | — | — | Feb 28, 2018 |
| CTSO | President and CEO | Purchase | 3,700 | $4.00 | $14,800 | Jun 8, 2017 |
| CTSO | President and CEO | Purchase | 6,300 | $4.00 | $25,200 | Jun 5, 2017 |
| CTSO | President and CEO | Award / Grant | 40,625 | — | — | Feb 24, 2017 |
| CTSO | President and CEO | Purchase | 4,600 | $5.40 | $24,840 | Dec 9, 2016 |
| CTSO | President and CEO | Purchase | 5,000 | $4.89 | $24,450 | Aug 24, 2016 |
| CTSO | President and CEO | Award / Grant | 57,000 | — | — | Jun 7, 2016 |
| CTSO | President and CEO | X | 800 | $3.13 | $2,504 | Oct 19, 2015 |
| CTSO | President and CEO | Other | 19,757 | — | — | Sep 9, 2015 |
| CTSO | President and CEO | Award / Grant | 130,000 | — | — | Apr 8, 2015 |
| CTSO | President and CEO | C | 1,061,354 | — | — | Oct 9, 2014 |
| CTSO | CEO & President | Purchase | 190,000 | $0.13 | $24,700 | Sep 4, 2012 |