CYTEK BIOSCIENCES INC

Ticker: CTKB CUSIP: 23285D109 Class: Common Stock

SUMMIT SECURITIES GROUP LLC's Holding History (CIK: 0001531593)

Note: Option positions (PUT/CALL) are excluded.

Q2 2025

Shares 33,276 Value ($000) $113 Avg Close $3.33 Range $2.37 - $4.10

Q2 2024

Shares 878 Value ($000) $0 Avg Close $6.01 Range $5.26 - $7.02

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2025	33,276	$113	$3.33	$2.37 - $4.10
Q2 2024	878	$0	$6.01	$5.26 - $7.02