Form 4: Cytek Biosciences Director Reports Stock Transaction
Insider Transaction (Form 4)
Glenn P Muir, a Director of Cytek Biosciences, Inc., reported multiple transactions in common stock on August 18, 2026.
Summary
- Option exercise/conversion: acquired 3,086 Common Stock on August 18, 2026; holds 3,086 after (Direct).
- Option exercise/conversion: disposed of 3,086 Restricted Stock Units on August 18, 2026; holds 52,469 after (Direct).
Sentiment
Score: 5
Explanation: StockSavvy.ai views this as routine: the reported changes are grants, option exercises, tax withholding or similar administrative transactions, which carry limited directional signal.
Insider Transactions
Glenn P Muir — Director
| Date | Transaction | Security | Shares | Price | Value | Held After |
|---|---|---|---|---|---|---|
| 2026-08-18 | Option exercise/conversion | Common Stock | 3,086 | — | — | 3,086 |
| 2026-08-18 | Option exercise/conversion | Restricted Stock Units | 3,086 | — | — | 52,469 |
Key Dates
| Date | Description |
|---|---|
| 2026-08-18 | Option exercise/conversion (3,086 shares) |
| 2026-08-18 | Option exercise/conversion (3,086 shares) |
Keywords
insider transaction, Form 4, CTKB, Cytek Biosciences, Inc., neutral, Glenn P Muir
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