Form4insider filings, from the source

Insider · CIK 0001515140

Michael Holder

Files at: CTKB, MDXH. On EDGAR ↗

1M3M6M1Y2YAll datashares as filed — not split-adjusted

Reported trades — common stock

TradeReported (ET)CompanySharesAvg priceTotalOwned afterΔ stakeFlags
Aug 18, 2026 MForm 4 →Aug 20, 4:28 pm EDTCytek Biosciences, Inc.CTKB2,181——62,875—
Jun 10, 2026 MForm 4 →Jun 12, 7:22 pm EDTCytek Biosciences, Inc.CTKB43,973——60,694—

Reported trades — derivatives (options, RSUs, warrants)

TradeReported (ET)CompanySharesAvg priceTotalOwned afterΔ stakeFlags
Aug 18, 2026 MForm 4 →Aug 20, 4:28 pm EDTCytek Biosciences, Inc.CTKB2,181——7,276—
Jun 10, 2026 AMForm 4 →Jun 12, 7:22 pm EDTCytek Biosciences, Inc.CTKB95,567——0—
Jun 1, 2026 AForm 4 →Jun 3, 5:30 pm EDTMDxHealth SAMDXH10,000——10,000—