Chin Richard (CIK 1337252) reported 4 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-05-20). Recent activity: Buy CTKB (6,107 shares), Buy CTKB (6,107 shares), Buy CTKB (6,107 shares), Buy CTKB (4,071 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-05-20 | Cytek Biosciences, Inc. (CTKB) | Director | Buy | 6,107 | $0 |
| 2026-03-12 | Cytek Biosciences, Inc. (CTKB) | Director | Buy | 6,107 | $0 |
| 2025-11-20 | Cytek Biosciences, Inc. (CTKB) | Director | Buy | 6,107 | $0 |
| 2025-08-20 | Cytek Biosciences, Inc. (CTKB) | Director | Buy | 4,071 | $0 |
Source: SEC Form 4 filings · as of 2026-05-20