Only open-market buys / sells (codes P/S) are a conviction signal; grants, option exercises, tax-withholding, and gifts are compensation mechanics, shown but greyed. The trailing 12-month tallies run to today but the store covers filings through 2026-06-30 only (SEC bulk data sets publish quarterly), so recent activity may be absent.
| Date | Insider | Role | Transaction | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-05-22 | Hsu Jason | Director | +Grant | 6,250 | — | — |
| 2026-05-22 | BUCHAN JANE | Director | +Grant | 6,250 | — | — |
| 2026-05-22 | Chudnovsky Yekaterina | Director | +Grant | 6,250 | — | — |
| 2026-05-22 | CHANG NANCY T | Director | +Grant | 6,250 | — | — |
| 2026-05-22 | Marquet Magda | Director | +Grant | 6,250 | — | — |
| 2026-05-22 | Adams Helen C. | Director | +Grant | 6,250 | — | — |
| 2026-05-22 | Ng Carey | Director | +Grant | 6,250 | — | — |
| 2025-12-10 | Morris Gabriel S | Director,Officer | +Buy | 770 | $6.58 | $5,067 |
| 2025-12-10 | Rachman Ilya M | Director,Officer | +Buy | 746 | $6.67 | $4,976 |
| 2025-12-08 | Morris Gabriel S | Director,Officer | +Exercise | 156,000 | $0.80 | $124,800 |
| 2025-09-17 | Rachman Ilya M | Director,Officer | +Buy | 2,500 | $2.02 | $5,050 |
| 2025-09-16 | Morris Gabriel S | Director,Officer | +Buy | 2,600 | $1.97 | $5,122 |
| 2025-06-18 | Morris Gabriel S | Director,Officer | +Buy | 2,225 | $2.28 | $5,073 |
| 2025-06-18 | Rachman Ilya M | Director,Officer | +Buy | 2,178 | $2.30 | $5,009 |
| 2024-12-23 | Hsu Jason | Director | +Buy | 40,000 | $2.19 | $87,600 |
| 2024-12-20 | Hsu Jason | Director | +Buy | 7,700 | $2.17 | $16,709 |
| 2024-08-22 | Hsu Jason | Director | +Buy | 8,100 | $2.25 | $18,225 |
| 2024-08-21 | Hsu Jason | Director | +Buy | 15,000 | $2.23 | $33,450 |
| 2024-08-16 | Ng Carey | Director | +Buy | 10,000 | $1.86 | $18,600 |
| 2024-07-24 | Hsu Jason | Director | +Buy | 6,000 | $2.15 | $12,900 |
| 2024-07-18 | Hsu Jason | Director | +Buy | 3,200 | $2.07 | $6,624 |
| 2024-06-07 | Morris Gabriel S | Director,Officer | +Buy | 2,500 | $2.12 | $5,300 |
| 2024-06-07 | Rachman Ilya M | Director,Officer | +Buy | 2,600 | $2.13 | $5,538 |
| 2024-06-04 | Rachman Ilya M | Director,Officer | +Buy | 3,300 | $1.81 | $5,973 |
| 2024-06-04 | Morris Gabriel S | Director,Officer | +Buy | 3,300 | $1.81 | $5,973 |
| 2024-05-20 | Adams Helen C. | Director | +Grant | 74,241 | — | — |
| 2024-05-20 | BUCHAN JANE | Director | +Grant | 1,127 | — | — |
| 2024-05-20 | Morris Gabriel S | Director,Officer | +Grant | 24,141 | — | — |
| 2024-05-20 | Morris Gabriel S | Director,Officer | +Grant | 194,218 | — | — |
| 2024-05-20 | Morris Gabriel S | Director,Officer | +Grant | 24,141 | — | — |
| 2024-05-20 | Rachman Ilya M | Director,Officer | +Grant | 218,359 | — | — |
| 2024-05-20 | Marquet Magda | Director | +Grant | 21,155 | — | — |
| 2024-05-15 | Adams Helen C. | Director | +Grant | 87,740 | — | — |
| 2024-05-15 | BUCHAN JANE | Director | +Grant | 1,332 | — | — |
| 2024-05-15 | Marquet Magda | Director | +Grant | 25,002 | — | — |
| 2024-05-14 | Rachman Ilya M | Director,Officer | +Buy | 4,300 | $2.25 | $9,675 |
| 2024-05-14 | Morris Gabriel S | Director,Officer | +Buy | 4,500 | $2.23 | $10,035 |
| 2023-12-11 | Hsu Jason | Director | +Buy | 31,000 | $4.67 | $144,770 |
| 2023-12-08 | Hsu Jason | Director | +Buy | 25,000 | $4.88 | $122,000 |
| 2023-09-15 | Hsu Jason | Director | +Buy | 7,000 | $2.49 | $17,430 |
| 2023-09-14 | Ng Carey | Director | +Buy | 10,000 | $2.58 | $25,800 |
| 2023-09-14 | Hsu Jason | Director | +Buy | 10,000 | $2.58 | $25,800 |
| 2023-09-12 | Adams Helen C. | Director | +Buy | 13,000 | $2.96 | $38,480 |
| 2023-09-12 | Hsu Jason | Director | +Buy | 30,000 | $2.83 | $84,900 |
| 2023-09-11 | Hsu Jason | Director | +Buy | 25,000 | $2.89 | $72,250 |
| 2023-09-08 | Hsu Jason | Director | +Buy | 10,000 | $2.53 | $25,300 |
| 2023-09-07 | BUCHAN MELISSA JANE | Director | +Buy | 20,000 | $2.46 | $49,200 |
| 2023-09-06 | Marquet Magda | Director | +Buy | 9,000 | $2.47 | $22,230 |
| 2023-09-05 | Marquet Magda | Director | +Buy | 10,000 | $2.47 | $24,700 |
| 2023-08-31 | Marquet Magda | Director | +Buy | 1,000 | $2.01 | $2,010 |
| 2022-11-14 | Morris Gabriel S | Director,Officer | +Buy | 5,200 | $0.94 | $4,888 |
| 2022-11-14 | Rachman Ilya M | Director,Officer | +Buy | 1,000 | $0.95 | $950 |
| 2022-11-14 | Rachman Ilya M | Director,Officer | +Buy | 4,050 | $1.02 | $4,131 |
| 2022-11-14 | Rachman Ilya M | Director,Officer | +Buy | 150 | $0.99 | $149 |
| 2022-07-14 | Senn Sean | TenPercentOwner | −Sell | 200 | $2.75 | $550 |
| 2022-07-14 | Senn Sean | Other | −Sell | 200 | $2.75 | $550 |
| 2021-12-20 | Ng Carey | Director | +Conversion | 1,000,221 | $0.85 | $850,188 |
| 2021-12-20 | Ng Carey | Director | +Buy | 25,000 | $5.00 | $125,000 |
| 2021-12-20 | Morris Gabriel S | Director,Officer | +Buy | 2,000 | $5.00 | $10,000 |
| 2021-12-20 | Morris Gabriel S | Director,Officer | +Conversion | 123,176 | $0.85 | $104,700 |
| 2021-12-20 | Morris Gabriel S | Director,Officer | +Conversion | 123,527 | $0.85 | $104,998 |
| 2021-12-20 | Morris Gabriel S | Director,Officer | +Conversion | 74,116 | $0.85 | $62,999 |
| 2021-12-20 | Torchilin Vladimir P | Officer | +Buy | 3,000 | $5.00 | $15,000 |
| 2021-12-20 | Rachman Ilya M | Director,Officer | +Buy | 2,500 | $5.00 | $12,500 |
| 2021-12-20 | Hsu Jason | Director | +Buy | 50,000 | $5.00 | $250,000 |
| 2021-12-20 | Hsu Jason | Director | +Conversion | 3,915,913 | $0.85 | $3M |
| 2021-12-17 | Torchilin Vladimir P | Officer | +Buy | 2,200 | $4.47 | $9,834 |
Source: the SEC bulk insider (Form 3/4/5) data sets — non-derivative transactions in the issuer's common stock, most recent first, covering filings through 2026-06-30. Insiders file within 2 business days of a transaction, but the bulk sets publish quarterly, so this store lags live filings; option/derivative lines are excluded. Codes: P buy · S sell · A grant · M/X/C exercise · F tax · G gift.
Model-derived estimate for research. See the Disclaimer.
