Insiders / Barnett Valerie
Barnett Valerie
CIK 1873091personinsider
Companies
1
First seen
Feb 20, 2026
Last activity
Mar 12, 2026
Companies
| Company | Shares held | Latest |
|---|---|---|
| Cytek Biosciences, Inc. · CTKB | 134,436 | — |
All securities held
3 positions · latest reported per filing
| Company | Security | Shares |
|---|---|---|
| Cytek Biosciences, Inc. | Common Stock | 134,436 |
| Cytek Biosciences, Inc. | Restricted Stock UnitsDerivative | 130,512 |
| Cytek Biosciences, Inc. | Employee Stock Option (right to buy)Derivative | 120,114 |
Activity
InsidersInstitutions
This person's insider trades (Form 4), across every company.| Date | Action | Company | Value | Shares Δ | Position after | Impact |
|---|---|---|---|---|---|---|
| Mar 10, 2026 | Other | CTKB Cytek Biosciences, Inc. Common Stock | $24.3K | -6K -4.09% | 134,436 0.10% of shares | low |
| Mar 10, 2026 | Other | CTKB Cytek Biosciences, Inc. Common Stock | $18.0K | -4K -3.27% | 125,675 0.10% of shares | low |
| Mar 10, 2026 | Other | CTKB Cytek Biosciences, Inc. Common Stock | $7.4K | -2K -1.45% | 119,609 0.09% of shares | low |
| Feb 18, 2026 | Other | CTKB Cytek Biosciences, Inc. Common Stock | $2.2K | -525 -0.45% | 116,462 0.09% of shares | low |
| Mar 10, 2026 | Exercise | CTKB Cytek Biosciences, Inc. Restricted Stock Units | — | -15K -10.00% | 130,512 0.10% of shares | low |
| Mar 10, 2026 | Exercise | CTKB Cytek Biosciences, Inc. Restricted Stock Units | — | -10K -14.28% | 61,884 0.05% of shares | low |
| Mar 10, 2026 | Exercise | CTKB Cytek Biosciences, Inc. Restricted Stock Units | — | -5K -24.99% | 14,734 0.01% of shares | low |
| Mar 10, 2026 | Grant | CTKB Cytek Biosciences, Inc. Restricted Stock Units | — | +226K | 226,453 0.17% of shares | low |
| Mar 10, 2026 | Grant | CTKB Cytek Biosciences, Inc. Employee Stock Option (right to buy) | — | +120K | 120,114 0.09% of shares | low |
| Mar 10, 2026 | Exercise | CTKB Cytek Biosciences, Inc. Common Stock | — | +15K +11.54% | 140,176 0.11% of shares | low |