Jiang Wenbin
Insider transactions at 1 company
This page shows all SEC Form 4 filings attributed to Jiang Wenbin. 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 |
|---|---|---|---|---|---|---|
| CTKB | PRESIDENT AND CEO | Option Exercise | 29,002 | — | — | Nov 18, 2025 |
| CTKB | PRESIDENT AND CEO | Option Exercise | 11,781 | — | — | Aug 18, 2025 |
| CTKB | PRESIDENT AND CEO | Option Exercise | 14,733 | — | — | May 19, 2025 |
| CTKB | PRESIDENT AND CEO | Tax Withholding | 4,658 | $4.36 | $20,309 | Mar 10, 2025 |
| CTKB | PRESIDENT AND CEO | Tax Withholding | 2,004 | $5.31 | $10,641 | Feb 18, 2025 |
| CTKB | PRESIDENT AND CEO | Tax Withholding | 5,382 | $6.03 | $32,453 | Nov 18, 2024 |
| CTKB | PRESIDENT AND CEO | Gift | 200,000 | — | — | Sep 14, 2024 |
| CTKB | PRESIDENT AND CEO | Option Exercise | 11,781 | — | — | Aug 19, 2024 |
| CTKB | PRESIDENT AND CEO | Option Exercise | 7,854 | — | — | May 20, 2024 |
| CTKB | PRESIDENT AND CEO | Tax Withholding | 4,646 | $7.22 | $33,544 | Mar 11, 2024 |
| CTKB | PRESIDENT AND CEO | Option Exercise | 6,758 | — | — | Feb 20, 2024 |
| CTKB | President and CEO | Option Exercise | 11,781 | — | — | Nov 18, 2023 |
| CTKB | President and CEO | Sale | 20,000 | $4.34 | $86,800 | Nov 7, 2023 |
| CTKB | President and CEO | Sale | 20,000 | $5.33 | $106,600 | Oct 9, 2023 |
| CTKB | President and CEO | Gift | 2,290,000 | — | — | Sep 14, 2023 |
| CTKB | President and CEO | Sale | 20,000 | $6.83 | $136,600 | Sep 7, 2023 |
| CTKB | President and CEO | Option Exercise | 6,758 | — | — | Aug 18, 2023 |
| CTKB | President and CEO | Sale | 20,000 | $9.04 | $180,800 | Aug 7, 2023 |
| CTKB | President and CEO | Sale | 20,000 | $8.48 | $169,600 | Jul 7, 2023 |
| CTKB | President and CEO | Sale | 20,000 | $8.23 | $164,600 | Jun 7, 2023 |
| CTKB | President and CEO | Tax Withholding | 2,951 | $6.69 | $19,742 | May 18, 2023 |
| CTKB | President and CEO | Sale | 20,000 | $11.55 | $231,000 | May 8, 2023 |
| CTKB | President and CEO | Sale | 20,000 | $8.88 | $177,600 | Apr 10, 2023 |
| CTKB | President and CEO | Sale | 20,000 | $10.13 | $202,600 | Mar 7, 2023 |
| CTKB | President and CEO | Tax Withholding | 2,633 | $10.97 | $28,884 | Feb 21, 2023 |
| CTKB | President and CEO | Sale | 20,000 | $13.19 | $263,800 | Feb 7, 2023 |
| CTKB | President and CEO | Sale | 20,000 | $10.66 | $213,200 | Jan 9, 2023 |
| CTKB | President and CEO | Sale | 20,000 | $11.86 | $237,200 | Nov 29, 2022 |
| CTKB | President and CEO | Tax Withholding | 2,264 | $14.75 | $33,394 | Nov 18, 2022 |
| CTKB | President and CEO | Sale | 20,000 | $14.76 | $295,200 | Nov 7, 2022 |
| CTKB | President and CEO | Sale | 20,000 | $14.79 | $295,800 | Oct 7, 2022 |
| CTKB | President and CEO | Sale | 20,000 | $12.89 | $257,800 | Sep 7, 2022 |
| CTKB | President and CEO | Option Exercise | 6,758 | — | — | Aug 18, 2022 |
| CTKB | President and CEO | Sale | 20,000 | $15.09 | $301,800 | Aug 8, 2022 |
| CTKB | President and CEO | Sale | 20,000 | $11.19 | $223,800 | Jul 7, 2022 |
| CTKB | President and CEO | Sale | 20,000 | $10.75 | $215,000 | Jun 7, 2022 |
| CTKB | President and CEO | Tax Withholding | 3,510 | $9.65 | $33,872 | May 18, 2022 |
| CTKB | President and CEO | Sale | 20,000 | $8.01 | $160,200 | May 9, 2022 |
| CTKB | President and CEO | Sale | 20,000 | $10.54 | $210,800 | Apr 7, 2022 |
| CTKB | President and CEO | Option Exercise | 66,665 | $0.25 | $16,666 | Mar 7, 2022 |
| CTKB | President and CEO | Sale | 20,000 | $14.40 | $288,000 | Dec 4, 2021 |
| CTKB | President and CEO | C | 2,666,600 | — | — | Jul 22, 2021 |