NEFF DEBORAH J
SEC insider (Form 3/4/5 filer). CIK 0001221786. Director at Cytek Biosciences, Inc. (CTKB). 6 reported Form 4/5 transactions since Sep 2024; latest on Jun 10, 2026. Located in FREMONT, CA.
Companies NEFF DEBORAH J has filed insider reports for
- Cytek Biosciences, Inc. (CTKB): Director
NEFF DEBORAH J
CIK: 0001221786
Transaction Breakdown
High conviction signal
Position reduction
Derivative conversions
Compensation grants
Gifts, tax withholding, conversions, dispositions to the issuer and other codes
Companies & Roles (1)
Cytek Biosciences, Inc.
Discretionary Trading P&L
Holdings
Transaction History (6 total)
- Jun 10, 2026CTKB
Cytek Biosciences, Inc.
ExerciseDirect44K shares- - Jun 10, 2026CTKB
Cytek Biosciences, Inc.
AwardDirectRestricted Stock Units
33.3K shares- - Jun 10, 2026CTKB
Cytek Biosciences, Inc.
AwardDirectDirector Stock Option (right to buy)
18.3K shares- - Jun 18, 2025CTKB
Cytek Biosciences, Inc.
AwardDirectRestricted Stock Units
44K shares- - Jun 18, 2025CTKB
Cytek Biosciences, Inc.
AwardDirectDirector Stock Option (right to buy)
23.8K shares- - Jun 5, 2025CTKB
Cytek Biosciences, Inc.
ExerciseDirect15.7K shares-
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| Jun 10, 2026 | CTKB Cytek Biosciences, Inc. | Exercise | 43,973 | - | $0 | Direct |
| Jun 10, 2026 | CTKB Cytek Biosciences, Inc. | Award Restricted Stock Units | 33,333 | - | - | Direct |
| Jun 10, 2026 | CTKB Cytek Biosciences, Inc. | Award Director Stock Option (right to buy) | 18,261 | - | - | Direct |
| Jun 18, 2025 | CTKB Cytek Biosciences, Inc. | Award Restricted Stock Units | 43,973 | - | - | Direct |
| Jun 18, 2025 | CTKB Cytek Biosciences, Inc. | Award Director Stock Option (right to buy) | 23,809 | - | - | Direct |
| Jun 5, 2025 | CTKB Cytek Biosciences, Inc. | Exercise | 15,706 | - | - | Direct |
1-6 of 6 transactions