Form4insider filings, from the source

Company · CIK 0001831915 · SIC 3826 — Laboratory Analytical Instruments · Nasdaq

Cytek Biosciences, Inc. · CTKB

Insider activity reported against this company. All insider holders · On EDGAR ↗

1M3M6M1Y2YAll datashares as filed — not split-adjusted

Reported at this company — common stock

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Aug 18, 2026 FMForm 4 →Aug 20, 4:35 pm EDTWenbin JiangPRESIDENT AND CEO, Director156,364$4.67$169,3765,561,029—
Aug 18, 2026 FMForm 4 →Aug 20, 4:34 pm EDTWilliam D. McCombeChief Financial Officer47,324$4.67$55,592134,693—
Aug 18, 2026 MForm 4 →Aug 20, 4:31 pm EDTGlenn P MuirDirector3,086——3,086—
Aug 18, 2026 MForm 4 →Aug 20, 4:28 pm EDTMichael HolderDirector2,181——62,875—
Aug 18, 2026 MForm 4 →Aug 20, 4:27 pm EDTRichard ChinDirector6,107——28,499—
Aug 18, 2026 FMForm 4 →Aug 20, 4:22 pm EDTMing YanCHIEF TECHNOLOGY OFFICER, Director41,358$4.67$37,7714,821,870—

Reported at this company — derivatives (options, RSUs, warrants)

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Aug 18, 2026 MForm 4 →Aug 20, 4:35 pm EDTWenbin JiangPRESIDENT AND CEO, Director120,095——820,054—
Aug 18, 2026 MForm 4 →Aug 20, 4:34 pm EDTWilliam D. McCombeChief Financial Officer35,420——230,042—
Aug 18, 2026 MForm 4 →Aug 20, 4:31 pm EDTGlenn P MuirDirector3,086——52,469—
Aug 18, 2026 MForm 4 →Aug 20, 4:28 pm EDTMichael HolderDirector2,181——7,276—
Aug 18, 2026 MForm 4 →Aug 20, 4:27 pm EDTRichard ChinDirector6,107——44,790—
Aug 18, 2026 MForm 4 →Aug 20, 4:22 pm EDTMing YanCHIEF TECHNOLOGY OFFICER, Director33,270——203,835—
Aug 10, 2026 AForm 4 →Aug 12, 6:31 pm EDTIlan FeuchtwangChief Legal Officer, Secretary368,534——127,118—