Wenbin Jiang
CIK: 0001872873
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 (65 total)
- Aug 18, 2026CTKB
Cytek Biosciences, Inc.
Tax Payment(F)Direct2.9K shares at avg. $4.67$13K - Aug 18, 2026CTKB
Cytek Biosciences, Inc.
Tax Payment(F)Direct5.4K shares at avg. $4.67$25K - Aug 18, 2026CTKB
Cytek Biosciences, Inc.
Exercise(M)Direct29K shares- - Aug 18, 2026CTKB
Cytek Biosciences, Inc.
Exercise(M)Direct57.2K shares- - Aug 18, 2026CTKB
Cytek Biosciences, Inc.
Exercise(M)Direct11.8K shares- - Aug 18, 2026CTKB
Cytek Biosciences, Inc.
Exercise(M)Direct22.1K shares- - Aug 18, 2026CTKB
Cytek Biosciences, Inc.
Tax Payment(F)Direct21K shares at avg. $4.67$98K - Aug 18, 2026CTKB
Cytek Biosciences, Inc.
Tax Payment(F)Direct7.1K shares at avg. $4.67$33K - May 18, 2026CTKB
Cytek Biosciences, Inc.
Exercise(M)Direct38.1K shares- - May 18, 2026CTKB
Cytek Biosciences, Inc.
Tax Payment(F)Direct15K shares at avg. $3.55$53K - May 18, 2026CTKB
Cytek Biosciences, Inc.
Exercise(M)Direct19.3K shares- - May 18, 2026CTKB
Cytek Biosciences, Inc.
Exercise(M)Direct14.7K shares- - May 18, 2026CTKB
Cytek Biosciences, Inc.
Exercise(M)Direct7.9K shares- - May 18, 2026CTKB
Cytek Biosciences, Inc.
Tax Payment(F)Direct5K shares at avg. $3.55$18K - May 18, 2026CTKB
Cytek Biosciences, Inc.
Tax Payment(F)Direct1.9K shares at avg. $3.55$7K - May 18, 2026CTKB
Cytek Biosciences, Inc.
Tax Payment(F)Direct3.6K shares at avg. $3.55$13K - Mar 10, 2026CTKB
Cytek Biosciences, Inc.
Exercise(M)Direct38.7K shares- - Mar 10, 2026CTKB
Cytek Biosciences, Inc.
Tax Payment(F)Direct7.7K shares at avg. $4.23$33K - Mar 10, 2026CTKB
Cytek Biosciences, Inc.
Tax Payment(F)Direct3.8K shares at avg. $4.23$16K - Mar 10, 2026CTKB
Cytek Biosciences, Inc.
Exercise(M)Direct15.7K shares- - Mar 10, 2026CTKB
Cytek Biosciences, Inc.
Award(A)DirectEmployee Stock Option (right to buy)
485.5K shares- - Mar 10, 2026CTKB
Cytek Biosciences, Inc.
Exercise(M)Direct29.5K shares- - Mar 10, 2026CTKB
Cytek Biosciences, Inc.
Tax Payment(F)Direct9.4K shares at avg. $4.23$40K - Mar 10, 2026CTKB
Cytek Biosciences, Inc.
Award(A)DirectRestricted Stock Units
915.4K shares- - Feb 18, 2026CTKB
Cytek Biosciences, Inc.
Tax Payment(F)Direct1.3K shares at avg. $4.20$6K
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| Aug 18, 2026 | CTKB Cytek Biosciences, Inc. | Tax Payment(F) | 2,869 | $4.67 | $13,398 | Direct |
| Aug 18, 2026 | CTKB Cytek Biosciences, Inc. | Tax Payment(F) | 5,382 | $4.67 | $25,134 | Direct |
| Aug 18, 2026 | CTKB Cytek Biosciences, Inc. | Exercise(M) | 29,002 | - | $0 | Direct |
| Aug 18, 2026 | CTKB Cytek Biosciences, Inc. | Exercise(M) | 57,212 | - | $0 | Direct |
| Aug 18, 2026 | CTKB Cytek Biosciences, Inc. | Exercise(M) | 11,781 | - | $0 | Direct |
| Aug 18, 2026 | CTKB Cytek Biosciences, Inc. | Exercise(M) | 22,100 | - | $0 | Direct |
| Aug 18, 2026 | CTKB Cytek Biosciences, Inc. | Tax Payment(F) | 20,956 | $4.67 | $97,865 | Direct |
| Aug 18, 2026 | CTKB Cytek Biosciences, Inc. | Tax Payment(F) | 7,062 | $4.67 | $32,980 | Direct |
| May 18, 2026 | CTKB Cytek Biosciences, Inc. | Exercise(M) | 38,141 | - | $0 | Direct |
| May 18, 2026 | CTKB Cytek Biosciences, Inc. | Tax Payment(F) | 15,009 | $3.55 | $53,282 | Direct |
| May 18, 2026 | CTKB Cytek Biosciences, Inc. | Exercise(M) | 19,334 | - | $0 | Direct |
| May 18, 2026 | CTKB Cytek Biosciences, Inc. | Exercise(M) | 14,733 | - | $0 | Direct |
| May 18, 2026 | CTKB Cytek Biosciences, Inc. | Exercise(M) | 7,854 | - | $0 | Direct |
| May 18, 2026 | CTKB Cytek Biosciences, Inc. | Tax Payment(F) | 5,032 | $3.55 | $17,864 | Direct |
| May 18, 2026 | CTKB Cytek Biosciences, Inc. | Tax Payment(F) | 1,913 | $3.55 | $6,791 | Direct |
| May 18, 2026 | CTKB Cytek Biosciences, Inc. | Tax Payment(F) | 3,588 | $3.55 | $12,737 | Direct |
| Mar 10, 2026 | CTKB Cytek Biosciences, Inc. | Exercise(M) | 38,669 | - | $0 | Direct |
| Mar 10, 2026 | CTKB Cytek Biosciences, Inc. | Tax Payment(F) | 7,747 | $4.23 | $32,770 | Direct |
| Mar 10, 2026 | CTKB Cytek Biosciences, Inc. | Tax Payment(F) | 3,825 | $4.23 | $16,180 | Direct |
| Mar 10, 2026 | CTKB Cytek Biosciences, Inc. | Exercise(M) | 15,708 | - | $0 | Direct |
| Mar 10, 2026 | CTKB Cytek Biosciences, Inc. | Award(A) Employee Stock Option (right to buy) | 485,545 | - | - | Direct |
| Mar 10, 2026 | CTKB Cytek Biosciences, Inc. | Exercise(M) | 29,467 | - | $0 | Direct |
| Mar 10, 2026 | CTKB Cytek Biosciences, Inc. | Tax Payment(F) | 9,416 | $4.23 | $39,830 | Direct |
| Mar 10, 2026 | CTKB Cytek Biosciences, Inc. | Award(A) Restricted Stock Units | 915,407 | - | - | Direct |
| Feb 18, 2026 | CTKB Cytek Biosciences, Inc. | Tax Payment(F) | 1,339 | $4.20 | $5,624 | Direct |
1-25 of 65 transactions
About Jiang Wenbin
Jiang Wenbin (SEC CIK 0001872873) files insider reports with the SEC as PRESIDENT AND CEO of Cytek Biosciences, Inc. (CTKB).
Signal8 holds 12 ownership filings by Jiang Wenbin, all Form 4s, filed between Sep 16, 2024 and Aug 20, 2026. Those filings report 65 transactions, from Sep 14, 2024 to Aug 18, 2026. Signal8's Form 4 history starts in Sep 2024.
The business address on Jiang Wenbin's filings is in FREMONT, CA.
Recent filings by Jiang Wenbin
- Aug 18, 2026: Tax withholdings of CTKB shares (2 lines, Form 4, code F).
- Aug 18, 2026: Option exercises of CTKB shares (4 lines, Form 4, code M).
- Aug 18, 2026: Tax withholdings of CTKB shares (2 lines, Form 4, code F).
- May 18, 2026: Option exercise of CTKB shares (Form 4, code M).
- May 18, 2026: Tax withholding of CTKB shares (Form 4, code F).
Other insiders filing for Cytek Biosciences, Inc. (CTKB)
- McCombe William D., Chief Financial Officer
- MUIR GLENN P, Director
- Holder Michael, Director
- Chin Richard, Director
- Yan Ming, CHIEF TECHNOLOGY OFFICER
- Feuchtwang Ilan, Chief Legal Officer, Secretary