RA Capital Nexus Fund II, L.P. bought $2.4M of CTKB

bought $2.43m of CTKB

186,467 shares @ $13.03

Increased holdings by +1.70%

42nd largest trade (out of 122)

Large TradeCluster Buy

Trade made by a director

Part of a cluster of 47 transactions by 10 insiders

Unscheduled trade

18% win rate · -23.0% median edge vs SPY (11 trades, 90-day · small sample)

Price 35% below 200-day moving average

CTKBCytek Biosciences, Inc.

HealthcareMedical Devices

1D0.00%

1W+2.46%

1M+6.00%

3M—

6M—

1Y—

Recent insider activity at CTKB