Holder Michael
SEC insider (Form 3/4/5 filer). CIK 0001515140. Director at Cytek Biosciences, Inc. (CTKB) and 1 other issuer. 14 reported Form 4/5 transactions since Sep 2024; latest on Aug 18, 2026. Located in FREMONT, CA.
Companies Holder Michael has filed insider reports for
- Cytek Biosciences, Inc. (CTKB): Director
- MDxHealth SA (MDXH): Director
Holder Michael
CIK: 0001515140
Transaction Breakdown
High conviction signal
Position reduction
Derivative conversions
Compensation grants
Gifts, tax withholding, conversions, dispositions to the issuer and other codes
Discretionary Trading P&L
Holdings
Transaction History (14 total)
- Aug 18, 2026CTKB
Cytek Biosciences, Inc.
ExerciseDirect2.2K shares- - Jun 10, 2026CTKB
Cytek Biosciences, Inc.
ExerciseDirect44K shares- - Jun 10, 2026CTKB
Cytek Biosciences, Inc.
AwardDirectDirector Stock Option (right to buy)
18.3K shares- - Jun 10, 2026CTKB
Cytek Biosciences, Inc.
AwardDirectRestricted Stock Units
33.3K shares- - Jun 1, 2026MDXH
MDxHealth SA
AwardDirectShare Option
10K shares- - May 18, 2026CTKB
Cytek Biosciences, Inc.
ExerciseDirect1.5K shares- - Mar 10, 2026CTKB
Cytek Biosciences, Inc.
ExerciseDirect2.9K shares- - Nov 18, 2025CTKB
Cytek Biosciences, Inc.
ExerciseDirect2.2K shares- - Aug 18, 2025CTKB
Cytek Biosciences, Inc.
ExerciseDirect2.2K shares- - Jun 18, 2025CTKB
Cytek Biosciences, Inc.
AwardDirectRestricted Stock Units
44K shares-
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| Aug 18, 2026 |  CTKB Cytek Biosciences, Inc. | Exercise | 2,181 | - | $0 | Direct |
| Jun 10, 2026 | CTKB Cytek Biosciences, Inc. | Exercise | 43,973 | - | $0 | Direct |
| Jun 10, 2026 | CTKB Cytek Biosciences, Inc. | Award Director Stock Option (right to buy) | 18,261 | - | - | Direct |
| Jun 10, 2026 | CTKB Cytek Biosciences, Inc. | Award Restricted Stock Units | 33,333 | - | - | Direct |
| Jun 1, 2026 |  MDXH MDxHealth SA | Award Share Option | 10,000 | - | - | Direct |
| May 18, 2026 | CTKB Cytek Biosciences, Inc. | Exercise | 1,454 | - | $0 | Direct |
| Mar 10, 2026 | CTKB Cytek Biosciences, Inc. | Exercise | 2,908 | - | $0 | Direct |
| Nov 18, 2025 | CTKB Cytek Biosciences, Inc. | Exercise | 2,181 | - | - | Direct |
| Aug 18, 2025 | CTKB Cytek Biosciences, Inc. | Exercise | 2,181 | - | - | Direct |
| Jun 18, 2025 | CTKB Cytek Biosciences, Inc. | Award Restricted Stock Units | 43,973 | - | - | Direct |
1-10 of 14 transactions