Yan Ming (CIK 1874041) reported 54 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-08-20). Recent activity: Buy CTKB (7,363 shares), Sell CTKB (1,778 shares), Buy CTKB (5,525 shares), Sell CTKB (1,346 shares), Buy CTKB (6,162 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-20 | Cytek Biosciences, Inc. (CTKB) | CHIEF TECHNOLOGY OFFICER | Buy | 7,363 | $0 |
| 2026-08-20 | Cytek Biosciences, Inc. (CTKB) | CHIEF TECHNOLOGY OFFICER | Sell | 1,778 | $8,303 |
| 2026-08-20 | Cytek Biosciences, Inc. (CTKB) | CHIEF TECHNOLOGY OFFICER | Buy | 5,525 | $0 |
| 2026-08-20 | Cytek Biosciences, Inc. (CTKB) | CHIEF TECHNOLOGY OFFICER | Sell | 1,346 | $6,286 |
| 2026-08-20 | Cytek Biosciences, Inc. (CTKB) | CHIEF TECHNOLOGY OFFICER | Buy | 6,162 | $0 |
| 2026-08-20 | Cytek Biosciences, Inc. (CTKB) | CHIEF TECHNOLOGY OFFICER | Sell | 1,501 | $7,010 |
| 2026-08-20 | Cytek Biosciences, Inc. (CTKB) | CHIEF TECHNOLOGY OFFICER | Buy | 14,220 | $0 |
| 2026-08-20 | Cytek Biosciences, Inc. (CTKB) | CHIEF TECHNOLOGY OFFICER | Sell | 3,463 | $16,172 |
| 2026-06-16 | Cytek Biosciences, Inc. (CTKB) | CHIEF TECHNOLOGY OFFICER | Sell | 135,892 | $0 |
| 2026-05-20 | Cytek Biosciences, Inc. (CTKB) | CHIEF TECHNOLOGY OFFICER | Sell | 919 | $3,262 |
| 2026-05-20 | Cytek Biosciences, Inc. (CTKB) | CHIEF TECHNOLOGY OFFICER | Sell | 1,224 | $4,345 |
| 2026-05-20 | Cytek Biosciences, Inc. (CTKB) | CHIEF TECHNOLOGY OFFICER | Buy | 3,683 | $0 |
| 2026-05-20 | Cytek Biosciences, Inc. (CTKB) | CHIEF TECHNOLOGY OFFICER | Buy | 4,908 | $0 |
| 2026-05-20 | Cytek Biosciences, Inc. (CTKB) | CHIEF TECHNOLOGY OFFICER | Buy | 4,108 | $0 |
| 2026-05-20 | Cytek Biosciences, Inc. (CTKB) | CHIEF TECHNOLOGY OFFICER | Sell | 1,025 | $3,639 |
| 2026-05-20 | Cytek Biosciences, Inc. (CTKB) | CHIEF TECHNOLOGY OFFICER | Buy | 9,480 | $0 |
| 2026-05-20 | Cytek Biosciences, Inc. (CTKB) | CHIEF TECHNOLOGY OFFICER | Sell | 2,364 | $8,392 |
| 2026-03-13 | Cytek Biosciences, Inc. (CTKB) | CHIEF TECHNOLOGY OFFICER | Sell | 1.2M | $0 |
| 2026-03-12 | Cytek Biosciences, Inc. (CTKB) | CHIEF TECHNOLOGY OFFICER | Buy | 9,817 | $0 |
| 2026-03-12 | Cytek Biosciences, Inc. (CTKB) | CHIEF TECHNOLOGY OFFICER | Sell | 3,047 | $12,889 |
| 2026-03-12 | Cytek Biosciences, Inc. (CTKB) | CHIEF TECHNOLOGY OFFICER | Buy | 7,366 | $0 |
| 2026-03-12 | Cytek Biosciences, Inc. (CTKB) | CHIEF TECHNOLOGY OFFICER | Sell | 2,287 | $9,674 |
| 2026-03-12 | Cytek Biosciences, Inc. (CTKB) | CHIEF TECHNOLOGY OFFICER | Buy | 8,217 | $0 |
| 2026-03-12 | Cytek Biosciences, Inc. (CTKB) | CHIEF TECHNOLOGY OFFICER | Sell | 2,397 | $10,139 |
| 2026-02-20 | Cytek Biosciences, Inc. (CTKB) | CHIEF TECHNOLOGY OFFICER | Buy | 1,332 | $0 |
Source: SEC Form 4 filings · as of 2026-08-20