Jiang Wenbin's Form 4 filing
Cytek Biosciences, Inc. (CTKB) · filed Aug 20, 2026
- Accession no.
- 0001872873-26-000006
- Filed
- Aug 20, 2026, 4:35 PM ET
- Trade date
- Aug 18, 2026
- Filing delay
- 2 days
- Rule 10b5-1 plan
- Not checked
This filing lists 8 non-derivative transactions and 4 derivative transactions. It was filed 2 days after the trade.
Reporting owners
A Form 4 can have several reporting owners, such as a person and a fund they control. Trade tables show the first one.
| Owner | Relationship to the company |
|---|---|
| Jiang WenbinCIK 0001872873 | Director, Officer (PRESIDENT AND CEO) |
Non-derivative securities (Table I)
Acquisitions and disposals of common stock and similar shares, one row per line on the filing.
| Trade date | Security | Transaction | Shares | Price | Value | Shares after | Ownership | Flags |
|---|---|---|---|---|---|---|---|---|
| Aug 18, 2026 | Common Stock | MOption exerciseAcquired | +11,781 | – | – | 5,488,984 | Direct | |
| Aug 18, 2026 | Common Stock | FTax withholdingDisposed | −2,869 | $4.67 | −$13,398.23 | 5,486,115 | Direct | |
| Aug 18, 2026 | Common Stock | MOption exerciseAcquired | +22,100 | – | – | 5,508,215 | Direct | |
| Aug 18, 2026 | Common Stock | FTax withholdingDisposed | −5,382 | $4.67 | −$25,133.94 | 5,502,833 | Direct | |
| Aug 18, 2026 | Common Stock | MOption exerciseAcquired | +29,002 | – | – | 5,531,835 | Direct | |
| Aug 18, 2026 | Common Stock | FTax withholdingDisposed | −7,062 | $4.67 | −$32,979.54 | 5,524,773 | Direct | |
| Aug 18, 2026 | Common Stock | MOption exerciseAcquired | +57,212 | – | – | 5,581,985 | Direct | |
| Aug 18, 2026 | Common Stock | FTax withholdingDisposed | −20,956 | $4.67 | −$97,864.52 | 5,561,029 | Direct |
Derivative securities (Table II)
Options, warrants, restricted stock units and similar. Shares are the underlying shares; price and value are for the derivative itself, and the holding after is in derivative units.
| Trade date | Security | Transaction | Underlying shares | Unit price | Value | Held after | Ownership | Flags |
|---|---|---|---|---|---|---|---|---|
| Aug 18, 2026 | Common Stock | MOption exerciseDisposed | −11,781 | $0.00 | $0 | 27,494 | Direct | |
| Aug 18, 2026 | Common Stock | MOption exerciseDisposed | −22,100 | $0.00 | $0 | 139,973 | Direct | |
| Aug 18, 2026 | Common Stock | MOption exerciseDisposed | −29,002 | $0.00 | $0 | 299,694 | Direct | |
| Aug 18, 2026 | Common Stock | MOption exerciseDisposed | −57,212 | $0.00 | $0 | 820,054 | Direct |
Footnotes
Livermore does not store Form 4 footnotes. For price ranges, how indirect holdings are held and trading plan details, read the original on SEC EDGAR.