Company · CIK 0001831915 · SIC 3826 — Laboratory Analytical Instruments · Nasdaq
Cytek Biosciences, Inc. · CTKB
Insider activity reported against this company. All insider holders · On EDGAR ↗
Reported at this company — common stock
| Trade | Reported (ET) | Insider | Shares | Avg price | Total | Owned after | Δ stake | Flags |
|---|---|---|---|---|---|---|---|---|
| Aug 18, 2026 FMForm 4 → | Aug 20, 4:35 pm EDT | Wenbin JiangPRESIDENT AND CEO, Director | 156,364 | $4.67 | $169,376 | 5,561,029 | — | |
| Aug 18, 2026 FMForm 4 → | Aug 20, 4:34 pm EDT | William D. McCombeChief Financial Officer | 47,324 | $4.67 | $55,592 | 134,693 | — | |
| Aug 18, 2026 MForm 4 → | Aug 20, 4:31 pm EDT | Glenn P MuirDirector | 3,086 | — | — | 3,086 | — | |
| Aug 18, 2026 MForm 4 → | Aug 20, 4:28 pm EDT | Michael HolderDirector | 2,181 | — | — | 62,875 | — | |
| Aug 18, 2026 MForm 4 → | Aug 20, 4:27 pm EDT | Richard ChinDirector | 6,107 | — | — | 28,499 | — | |
| Aug 18, 2026 FMForm 4 → | Aug 20, 4:22 pm EDT | Ming YanCHIEF TECHNOLOGY OFFICER, Director | 41,358 | $4.67 | $37,771 | 4,821,870 | — |
Reported at this company — derivatives (options, RSUs, warrants)
| Trade | Reported (ET) | Insider | Shares | Avg price | Total | Owned after | Δ stake | Flags |
|---|---|---|---|---|---|---|---|---|
| Aug 18, 2026 MForm 4 → | Aug 20, 4:35 pm EDT | Wenbin JiangPRESIDENT AND CEO, Director | 120,095 | — | — | 820,054 | — | |
| Aug 18, 2026 MForm 4 → | Aug 20, 4:34 pm EDT | William D. McCombeChief Financial Officer | 35,420 | — | — | 230,042 | — | |
| Aug 18, 2026 MForm 4 → | Aug 20, 4:31 pm EDT | Glenn P MuirDirector | 3,086 | — | — | 52,469 | — | |
| Aug 18, 2026 MForm 4 → | Aug 20, 4:28 pm EDT | Michael HolderDirector | 2,181 | — | — | 7,276 | — | |
| Aug 18, 2026 MForm 4 → | Aug 20, 4:27 pm EDT | Richard ChinDirector | 6,107 | — | — | 44,790 | — | |
| Aug 18, 2026 MForm 4 → | Aug 20, 4:22 pm EDT | Ming YanCHIEF TECHNOLOGY OFFICER, Director | 33,270 | — | — | 203,835 | — | |
| Aug 10, 2026 AForm 4 → | Aug 12, 6:31 pm EDT | Ilan FeuchtwangChief Legal Officer, Secretary | 368,534 | — | — | 127,118 | — |