InsiderTrades

Form 4 for CTKB Cytek Biosciences, Inc.

Accepted 2025-06-09 00:00:00 ET · period of report 2025-06-05 · accession 0001415889-25-016316 · SEC index · Original document

Summary rows

Aggregated the way they appear in lists: one row per insider, transaction code and security table.

X Filed Traded Ticker Insider Title Type Price Qty Owned ΔOwn Value
D 2025-06-09 2025-06-05 CTKB HARDISON DON M Dir M - OptEx — +15.7K 15.7K New —
D 2025-06-09 2025-06-05 CTKB HARDISON DON M Dir M - OptEx $0.00 -15.7K 0 -100% $0

Purchase Sale Sale after option exercise All abbreviations

Every reported transaction

#TableSecurityDateCodeA/DSharesPriceOwned afterOwnExercise / expiryUnderlyingFootnotes
1 Common Common Stock 2025-06-05 M A 15,706 — 15,706 D — — (F1) Each Restricted Stock Unit (the "RSU Award") represents a contingent right to receive one share of the Issuer's common stock.
2 Derivative Restricted Stock Units 2025-06-05 M D 15,706 $0.00 0 D — · — to — 15,706 Common Stock (F1) Each Restricted Stock Unit (the "RSU Award") represents a contingent right to receive one share of the Issuer's common stock. (F2) 100% of the shares subject to the RSU Award vested on June 5, 2025.