Over the trailing 12 months, CTKB insiders made no open-market trades in the stock.
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Wenbin Jiang | President And Ceo | 13,462,570 | 0 | 13,462,570 | 41.4% | 20 Aug, 2026 |
| 2 | Capital Management, L.P. Ra | Director, TenPercentOwner | 0 | 13,381,054 | 13,381,054 | 41.2% | 16 Mar, 2022 |
| 3 | Ming Yan | Chief Technology Officer | 4,821,870 | 0 | 4,821,870 | 14.8% | 20 Aug, 2026 |
| 4 | Valerie Barnett | Chief Legal Officer | 150,012 | 0 | 150,012 | 0.5% | 20 May, 2026 |
| 5 | William D. Mccombe | Chief Financial Officer | 134,693 | 0 | 134,693 | 0.4% | 20 Aug, 2026 |
| 6 | Patrik Jeanmonod | Chief Financial Officer | 97,465 | 0 | 97,465 | 0.3% | 13 Mar, 2024 |
| 7 | Jack Ball | Director | 86,678 | 0 | 86,678 | 0.3% | 12 Jun, 2026 |
| 8 | Michael Holder | Director | 62,875 | 0 | 62,875 | 0.2% | 20 Aug, 2026 |
| 9 | Allen Poirson | Svp Bus. And Corp. Dev. | 59,981 | 0 | 59,981 | 0.2% | 20 Nov, 2024 |
| 10 | Deborah J Neff | Director | 59,679 | 0 | 59,679 | 0.2% | 12 Jun, 2026 |
| 11 | Vera Imper | Director | 59,679 | 0 | 59,679 | 0.2% | 12 Jun, 2026 |
| 12 | Philippe Busque | Svp, Global Sales And Services | 43,466 | 0 | 43,466 | 0.1% | 20 May, 2026 |
| 13 | Richard Chin | Director | 28,499 | 0 | 28,499 | 0.1% | 20 Aug, 2026 |
| 14 | Paul Christopher Williams | Chief Operating Officer | 16,473 | 0 | 16,473 | 0.1% | 21 Aug, 2024 |
| 15 | Don M Hardison | Director | 15,706 | 0 | 15,706 | 0.0% | 09 Jun, 2025 |
| 16 | Jonathan Todd Garland | Chief Commercial Officer | 8,763 | 0 | 8,763 | 0.0% | 21 Aug, 2023 |
| 17 | Glenn P Muir | Director | 3,086 | 0 | 3,086 | 0.0% | 20 Aug, 2026 |
Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.
| Date | Insider | Position | Transaction | Shares | Price | Value | Shares Held After | Ownership |
|---|---|---|---|---|---|---|---|---|
| 18 Aug, 2026 | Glenn P Muir | Director | Acquired M | 3,086 | — | — | 3,086 | Direct |
| 18 Aug, 2026 | Wenbin Jiang | President And Ceo | Acquired M | 11,781 | — | — | 5,488,984 | Direct |
| 18 Aug, 2026 | William D. Mccombe | Chief Financial Officer | Acquired M | 6,320 | — | — | 117,497 | Direct |
| 18 Aug, 2026 | Michael Holder | Director | Acquired M | 2,181 | — | — | 62,875 | Direct |
| 18 Aug, 2026 | Richard Chin | Director | Acquired M | 6,107 | — | — | 28,499 | Direct |
| 18 Aug, 2026 | Ming Yan | Chief Technology Officer | Acquired M | 7,363 | — | — | 4,804,051 | Direct |
| 18 Aug, 2026 | Ming Yan | Chief Technology Officer | Disposed F | 1,778 | $4.67 | $8.30K | 4,802,273 | Direct |
| 18 Aug, 2026 | Wenbin Jiang | President And Ceo | Disposed F | 2,869 | $4.67 | $13.40K | 5,486,115 | Direct |
| 18 Aug, 2026 | Richard Chin | Director | Disposed M | 6,107 | $0.00 | $0 | 44,790 | Direct |
| 18 Aug, 2026 | Michael Holder | Director | Disposed M | 2,181 | $0.00 | $0 | 7,276 | Direct |
| 18 Aug, 2026 | William D. Mccombe | Chief Financial Officer | Disposed F | 2,111 | $4.67 | $9.86K | 115,386 | Direct |
| 18 Aug, 2026 | Glenn P Muir | Director | Disposed M | 3,086 | $0.00 | $0 | 52,469 | Direct |
| 18 Aug, 2026 | Ming Yan | Chief Technology Officer | Acquired M | 5,525 | — | — | 4,807,798 | Direct |
| 18 Aug, 2026 | Wenbin Jiang | President And Ceo | Acquired M | 22,100 | — | — | 5,508,215 | Direct |
| 18 Aug, 2026 | William D. Mccombe | Chief Financial Officer | Acquired M | 13,051 | — | — | 128,437 | Direct |
| 18 Aug, 2026 | Wenbin Jiang | President And Ceo | Disposed F | 5,382 | $4.67 | $25.13K | 5,502,833 | Direct |
| 18 Aug, 2026 | Ming Yan | Chief Technology Officer | Disposed F | 1,346 | $4.67 | $6.29K | 4,806,452 | Direct |
| 18 Aug, 2026 | William D. Mccombe | Chief Financial Officer | Disposed F | 4,392 | $4.67 | $20.51K | 124,045 | Direct |
| 18 Aug, 2026 | William D. Mccombe | Chief Financial Officer | Acquired M | 16,049 | — | — | 140,094 | Direct |
| 18 Aug, 2026 | Ming Yan | Chief Technology Officer | Acquired M | 6,162 | — | — | 4,812,614 | Direct |