As of April 22, 2026, the three largest insider holders of CTKB are Wenbin Jiang (President And Ceo, 7.90Mn shares), Wenbin Jiang (President And Ceo, 5.42Mn shares), Ming Yan (Chief Technology Officer, 4.92Mn shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Wenbin Jiang | President And Ceo | 7,901,541 | 0 | 20 May, 2022 |
| Wenbin Jiang | President And Ceo | 5,422,683 | 0 | 12 Mar, 2026 |
| Ming Yan | Chief Technology Officer | 4,915,933 | 0 | 13 Mar, 2026 |
| Wenbin Jiang | President And Ceo | 0 | 2,666,600 | 27 Jul, 2021 |
| Feng Deng | - | 0 | 443,800 | 27 Jul, 2021 |
| Valerie Barnett | Chief Legal Officer | 134,436 | 0 | 12 Mar, 2026 |
| Patrik Jeanmonod | Chief Financial Officer | 97,465 | 0 | 13 Mar, 2024 |
| Allen Poirson | Svp Bus. And Corp. Dev. | 59,981 | 0 | 20 Nov, 2024 |
| Jack Ball | - | 42,705 | 0 | 09 Jun, 2025 |
| Philippe Busque | Svp, Global Sales And Services | 35,687 | 0 | 12 Mar, 2026 |
| Paul Christopher Williams | Chief Operating Officer | 16,473 | 0 | 21 Aug, 2024 |
| Richard Chin | - | 16,285 | 0 | 12 Mar, 2026 |
| Don M Hardison | - | 15,706 | 0 | 09 Jun, 2025 |
| Deborah J Neff | - | 15,706 | 0 | 09 Jun, 2025 |
| Vera Imper | - | 15,706 | 0 | 09 Jun, 2025 |
| Michael Holder | - | 15,267 | 0 | 12 Mar, 2026 |
| Jonathan Todd Garland | Chief Commercial Officer | 8,763 | 0 | 21 Aug, 2023 |
| Gisele Dion | - | 5,000 | 0 | 27 Jul, 2021 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 13 Mar, 2026 | Ming Yan | Common Stock | D | 1,176,000 | $0.00 | 4,915,933 | D | G |
| 10 Mar, 2026 | William D. Mccombe | Common Stock | A | 6,320 | - | 87,034 | D | M |
| 10 Mar, 2026 | Philippe Busque | Common Stock | A | 2,049 | - | 30,951 | D | M |
| 10 Mar, 2026 | Wenbin Jiang | Common Stock | A | 15,708 | - | 5,375,535 | D | M |
| 10 Mar, 2026 | Valerie Barnett | Common Stock | A | 4,908 | - | 121,370 | D | M |
| 10 Mar, 2026 | Richard Chin | Common Stock | A | 6,107 | - | 16,285 | D | M |
| 10 Mar, 2026 | Michael Holder | Common Stock | A | 2,908 | - | 15,267 | D | M |
| 10 Mar, 2026 | Ming Yan | Common Stock | A | 9,817 | - | 6,084,081 | D | M |
| 10 Mar, 2026 | Richard Chin | Restricted Stock Units | D | 6,107 | $0.00 | 57,004 | D | M |
| 10 Mar, 2026 | Michael Holder | Restricted Stock Units | D | 2,908 | $0.00 | 10,911 | D | M |
| 10 Mar, 2026 | Valerie Barnett | Common Stock | D | 1,761 | $4.23 | 119,609 | D | F |
| 10 Mar, 2026 | Ming Yan | Common Stock | D | 3,047 | $4.23 | 6,081,034 | D | F |
| 10 Mar, 2026 | Philippe Busque | Common Stock | D | 635 | $4.23 | 30,316 | D | F |
| 10 Mar, 2026 | William D. Mccombe | Common Stock | D | 2,603 | $4.23 | 84,431 | D | F |
| 10 Mar, 2026 | Wenbin Jiang | Common Stock | D | 3,825 | $4.23 | 5,371,710 | D | F |
| 10 Mar, 2026 | William D. Mccombe | Common Stock | A | 17,401 | - | 101,832 | D | M |
| 10 Mar, 2026 | Wenbin Jiang | Common Stock | A | 29,467 | - | 5,401,177 | D | M |
| 10 Mar, 2026 | Valerie Barnett | Common Stock | A | 10,313 | - | 129,922 | D | M |
| 10 Mar, 2026 | Ming Yan | Common Stock | A | 7,366 | - | 6,088,400 | D | M |
| 10 Mar, 2026 | Philippe Busque | Common Stock | A | 2,946 | - | 33,262 | D | M |