| 2024-01-11 | He Junli | | Buy | Stock Option (right to buy) | 220640.0 | 220,640 | $0.0 | A |
| 2023-12-27 | He Junli | | Buy | Common Stock | 2700.0 | 253,000 | $4.8 | P |
| 2023-12-14 | He Junli | | Buy | Common Stock | 900.0 | 250,300 | $4.9 | P |
| 2023-12-06 | He Junli | | Buy | Common Stock | 1500.0 | 249,400 | $5.1 | P |
| 2023-09-11 | He Junli | | Buy | Common Stock | 1500.0 | 247,900 | $5.4 | P |
| 2023-08-28 | He Junli | | Buy | Common Stock | 3400.0 | 246,400 | $4.7 | P |
| 2023-08-21 | Shmerling James E. | | Buy | Common Stock | 6864.0 | 23,756 | $4.4 | P |
| 2023-08-18 | He Junli | | Buy | Common Stock | 8000.0 | 243,000 | $4.3 | P |
| 2023-07-26 | Packard Ronald J | | Buy | Stock Option (right to buy) | 7269.0 | 7,269 | $0.0 | A |
| 2023-07-26 | Packard Ronald J | | Buy | Stock Option (right to buy) | 5819.0 | 5,819 | $0.0 | A |
| 2023-07-26 | Li Ting | | Buy | Stock Option (right to buy) | 7269.0 | 7,269 | $0.0 | A |
| 2023-07-26 | GREEN DAVID | | Buy | Stock Option (right to buy) | 5819.0 | 5,819 | $0.0 | A |
| 2023-07-26 | GREEN DAVID | | Buy | Stock Option (right to buy) | 7269.0 | 7,269 | $0.0 | A |
| 2023-07-26 | Li Ting | | Buy | Stock Option (right to buy) | 5819.0 | 5,819 | $0.0 | A |
| 2023-07-26 | Chen Jing | | Buy | Stock Option (right to buy) | 7269.0 | 7,269 | $0.0 | A |
| 2023-07-26 | Chen Jing | | Buy | Stock Option (right to buy) | 5819.0 | 5,819 | $0.0 | A |
| 2023-07-26 | Shmerling James E. | | Buy | Stock Option (right to buy) | 7269.0 | 7,269 | $0.0 | A |
| 2023-07-26 | Shmerling James E. | | Buy | Stock Option (right to buy) | 5819.0 | 5,819 | $0.0 | A |
| 2023-07-26 | Sanchez Herman | | Buy | Stock Option (right to buy) | 7269.0 | 7,269 | $0.0 | A |
| 2023-07-26 | Sanchez Herman | | Buy | Stock Option (right to buy) | 5819.0 | 5,819 | $0.0 | A |