| Insiders | Shares | % | Avg Price | Total $ | |
|---|---|---|---|---|---|
| Buys | 1 | +35,000 | 100% | $2.78 | +$97,300 |
| Sells | 0 | ||||
| Net | +1 | +35,000 | 100% | +$97,300 |
Showing up to 300 most recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | Value $ | * Price $ | Shares | Shares Owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Ming Yan | CTKB | Common Stock | Gift | -19.3% | -1,176,000 | 4,915,933 | 13 Mar 2026 | Direct | ||
| Richard Chin | CTKB | Common Stock | Options Exercise | 60% | 6,107 | 16,285 | 10 Mar 2026 | Direct | ||
| Richard Chin | CTKB | Restricted Stock Units | Options Exercise | -9.68% | -6,107 | 57,004 | 10 Mar 2026 | Direct | ||
| Valerie Barnett | CTKB | Common Stock | Tax liability | -8.94% | -11,748 | 119,609 | 10 Mar 2026 | Direct | ||
| Valerie Barnett | CTKB | Common Stock | Options Exercise | 26.9% | 29,722 | 140,176 | 10 Mar 2026 | Direct | ||
| Valerie Barnett | CTKB | Restricted Stock Units | Options Exercise | -66.9% | -29,722 | 14,734 | 10 Mar 2026 | Direct | ||
| Valerie Barnett | CTKB | Restricted Stock Units | Award | 226,453 | 226,453 | 10 Mar 2026 | Direct | |||
| Valerie Barnett | CTKB | Employee Stock Option (right to buy) | Award | 120,114 | 120,114 | 10 Mar 2026 | Direct | |||
| Philippe Busque | CTKB | Common Stock | Tax liability | -9.12% | -3,043 | 30,316 | 10 Mar 2026 | Direct | ||
| Philippe Busque | CTKB | Common Stock | Options Exercise | 35.9% | 9,828 | 37,183 | 10 Mar 2026 | Direct | ||
| Philippe Busque | CTKB | Restricted Stock Units | Options Exercise | -59.6% | -9,828 | 6,665 | 10 Mar 2026 | Direct | ||
| Philippe Busque | CTKB | Restricted Stock Units | Award | 133,226 | 133,226 | 10 Mar 2026 | Direct | |||
| Philippe Busque | CTKB | Employee Stock Option (right to buy) | Award | 70,665 | 70,665 | 10 Mar 2026 | Direct | |||
| Wenbin Jiang | CTKB | Common Stock | Tax liability | -0.39% | -20,988 | 5,371,710 | 10 Mar 2026 | Direct | ||
| Wenbin Jiang | CTKB | Common Stock | Options Exercise | 1.57% | 83,844 | 5,432,099 | 10 Mar 2026 | Direct | ||
| Wenbin Jiang | CTKB | Restricted Stock Units | Options Exercise | -64% | -83,844 | 47,129 | 10 Mar 2026 | Direct | ||
| Wenbin Jiang | CTKB | Restricted Stock Units | Award | 915,407 | 915,407 | 10 Mar 2026 | Direct | |||
| Wenbin Jiang | CTKB | Employee Stock Option (right to buy) | Award | 485,545 | 485,545 | 10 Mar 2026 | Direct | |||
| William D. McCombe | CTKB | Common Stock | Tax liability | -10.4% | -9,748 | 84,431 | 10 Mar 2026 | Direct | ||
| William D. McCombe | CTKB | Common Stock | Options Exercise | 30.4% | 23,721 | 101,832 | 10 Mar 2026 | Direct | ||
| William D. McCombe | CTKB | Restricted Stock Units | Options Exercise | -29.4% | -23,721 | 56,889 | 10 Mar 2026 | Direct | ||
| William D. McCombe | CTKB | Restricted Stock Units | Award | 256,790 | 256,790 | 10 Mar 2026 | Direct | |||
| William D. McCombe | CTKB | Employee Stock Option (right to buy) | Award | 136,205 | 136,205 | 10 Mar 2026 | Direct | |||
| Ming Yan | CTKB | Common Stock | Tax liability | -0.13% | -7,731 | 6,081,034 | 10 Mar 2026 | Direct | ||
| Ming Yan | CTKB | Common Stock | Options Exercise | 0.42% | 25,400 | 6,094,330 | 10 Mar 2026 | Direct | ||
| Ming Yan | CTKB | Restricted Stock Units | Options Exercise | -46.3% | -25,400 | 29,460 | 10 Mar 2026 | Direct | ||
| Ming Yan | CTKB | Restricted Stock Units | Award | 227,535 | 227,535 | 10 Mar 2026 | Direct | |||
| Ming Yan | CTKB | Employee Stock Option (right to buy) | Award | 120,688 | 120,688 | 10 Mar 2026 | Direct | |||
| Michael Holder | CTKB | Common Stock | Options Exercise | 23.5% | 2,908 | 15,267 | 10 Mar 2026 | Direct | ||
| Michael Holder | CTKB | Restricted Stock Units | Options Exercise | -21% | -2,908 | 10,911 | 10 Mar 2026 | Direct | ||
| Wenbin Jiang | CTKB | Common Stock | Tax liability | -0.02% | -1,339 | 5,359,827 | 18 Feb 2026 | Direct | ||
| Wenbin Jiang | CTKB | Common Stock | Options Exercise | 0.08% | 4,514 | 5,361,166 | 18 Feb 2026 | Direct | ||
| Wenbin Jiang | CTKB | Restricted Stock Units | Options Exercise | -100% | -4,514 | 0 | 18 Feb 2026 | Direct | ||
| Ming Yan | CTKB | Common Stock | Tax liability | -0.01% | -395 | 6,074,264 | 18 Feb 2026 | Direct | ||
| Ming Yan | CTKB | Common Stock | Options Exercise | 0.02% | 1,332 | 6,074,659 | 18 Feb 2026 | Direct | ||
| Ming Yan | CTKB | Restricted Stock Units | Options Exercise | -100% | -1,332 | 0 | 18 Feb 2026 | Direct | ||
| Valerie Barnett | CTKB | Common Stock | Tax liability | -0.45% | -525 | 116,462 | 18 Feb 2026 | Direct | ||
| Valerie Barnett | CTKB | Common Stock | Options Exercise | 1.16% | 1,346 | 116,987 | 18 Feb 2026 | Direct | ||
| Valerie Barnett | CTKB | Restricted Stock Units | Options Exercise | -100% | -1,346 | 0 | 18 Feb 2026 | Direct | ||
| Ming Yan | CTKB | Common Stock | Tax liability | -0.08% | -5,123 | 6,058,917 | 18 Nov 2025 | Direct | ||
| Ming Yan | CTKB | Common Stock | Options Exercise | 0.35% | 21,031 | 6,074,828 | 18 Nov 2025 | Direct | ||
| Ming Yan | CTKB | Restricted Stock Units | Options Exercise | -94% | -21,031 | 1,332 | 18 Nov 2025 | Direct | ||
| Philippe Busque | CTKB | Common Stock | Tax liability | -7.13% | -1,885 | 24,559 | 18 Nov 2025 | Direct | ||
| Philippe Busque | CTKB | Common Stock | Options Exercise | 32.8% | 7,371 | 29,829 | 18 Nov 2025 | Direct | ||
| Philippe Busque | CTKB | Restricted Stock Units | Options Exercise | -45.8% | -7,371 | 8,714 | 18 Nov 2025 | Direct | ||
| Valerie Barnett | CTKB | Common Stock | Tax liability | -7.22% | -7,817 | 100,518 | 18 Nov 2025 | Direct | ||
| Valerie Barnett | CTKB | Common Stock | Options Exercise | 25.6% | 24,307 | 119,138 | 18 Nov 2025 | Direct | ||
| Valerie Barnett | CTKB | Restricted Stock Units | Options Exercise | -94.8% | -24,307 | 1,346 | 18 Nov 2025 | Direct | ||
| William D. McCombe | CTKB | Common Stock | Tax liability | -7.98% | -6,228 | 71,859 | 18 Nov 2025 | Direct | ||
| William D. McCombe | CTKB | Common Stock | Options Exercise | 29.6% | 19,371 | 84,910 | 18 Nov 2025 | Direct |