Insiders / Busque Philippe
Busque Philippe
CIK 1991396personinsider
Companies
1
First seen
Mar 12, 2026
Last activity
Mar 12, 2026
Companies
| Company | Shares held | Latest |
|---|---|---|
| Cytek Biosciences, Inc. · CTKB | 35,687 | — |
All securities held
3 positions · latest reported per filing
| Company | Security | Shares |
|---|---|---|
| Cytek Biosciences, Inc. | Common Stock | 35,687 |
| Cytek Biosciences, Inc. | Employee Stock Option (right to buy)Derivative | 70,665 |
| Cytek Biosciences, Inc. | Restricted Stock UnitsDerivative | 43,505 |
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 | $6.3K | -1K -4.02% | 35,687 0.03% of shares | low |
| Mar 10, 2026 | Other | CTKB Cytek Biosciences, Inc. Common Stock | $3.9K | -912 -2.74% | 32,350 0.02% of shares | low |
| Mar 10, 2026 | Other | CTKB Cytek Biosciences, Inc. Common Stock | $2.7K | -635 -2.05% | 30,316 0.02% of shares | low |
| Mar 10, 2026 | Exercise | CTKB Cytek Biosciences, Inc. Restricted Stock Units | — | -5K -10.00% | 43,505 0.03% of shares | low |
| Mar 10, 2026 | Exercise | CTKB Cytek Biosciences, Inc. Restricted Stock Units | — | -3K -14.28% | 17,682 0.01% of shares | low |
| Mar 10, 2026 | Exercise | CTKB Cytek Biosciences, Inc. Restricted Stock Units | — | -2K -23.51% | 6,665 <0.01% of shares | low |
| Mar 10, 2026 | Grant | CTKB Cytek Biosciences, Inc. Restricted Stock Units | — | +133K | 133,226 0.10% of shares | low |
| Mar 10, 2026 | Grant | CTKB Cytek Biosciences, Inc. Employee Stock Option (right to buy) | — | +71K | 70,665 0.05% of shares | low |
| Mar 10, 2026 | Exercise | CTKB Cytek Biosciences, Inc. Common Stock | — | +5K +14.94% | 37,183 0.03% of shares | low |
| Mar 10, 2026 | Exercise | CTKB Cytek Biosciences, Inc. Common Stock | — | +3K +9.72% | 33,262 0.03% of shares | low |