4

Changes in Ownership

Cytek Biosciences, Inc. Filed 2021-07-29 Acc 0001104659-21-097601

Director bought 2,950,000 shares at $17.00 ($50,150,000)

Director acquired 6,657,028 shares (conversion)

From the SEC's structured data for this filing

Trades in this filing

Insider	Date	Transaction	Shares	Price	Value	Owned after	D/I
RA CAPITAL MANAGEMENT, L.P. Director	2021-07-27	Conversion	+5,150,751			5,150,751	I
RA CAPITAL MANAGEMENT, L.P. Director	2021-07-27	Purchase	+2,762,786	$17.00	$46,967,362	7,913,537	I
RA CAPITAL MANAGEMENT, L.P. Director	2021-07-27	Conversion	+998,553			998,553	I
RA CAPITAL MANAGEMENT, L.P. Director	2021-07-27	Purchase	+187,214	$17.00	$3,182,638	1,185,767	I
RA CAPITAL MANAGEMENT, L.P. Director	2021-07-27	Conversion	+507,724			507,724	I
Derivatives
RA CAPITAL MANAGEMENT, L.P. Director	2021-07-27	Conversion · Series D Preferred Stock	−5,150,751			0	I
RA CAPITAL MANAGEMENT, L.P. Director	2021-07-27	Conversion · Series D Preferred Stock	−998,553			0	I
RA CAPITAL MANAGEMENT, L.P. Director	2021-07-27	Conversion · Series D Preferred Stock	−507,724			0	I
Open-market purchases · 2,950,000 sh · avg $17.00 · $50,150,000