CYTOKINETICS INC

Ticker: CYTK CUSIP: 23282W605 Class: EQTY

FRONTIER CAPITAL MANAGEMENT CO LLC's Holding History (CIK: 0000351173)

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

Q4 2022

Shares 19,161 Value ($000) $878 Avg Close $42.95 Range $35.35 - $52.40

Q3 2022

Shares 159,214 Value ($000) $7,714 Avg Close $48.13 Range $38.16 - $55.80

Q2 2022

Shares 56,859 Value ($000) $2,234 Avg Close $40.26 Range $33.60 - $49.41

Q1 2022

Shares 409,550 Value ($000) $15,076 Avg Close $35.53 Range $29.26 - $46.95

Q4 2021

Shares 660,815 Value ($000) $30,120 Avg Close $38.59 Range $33.41 - $47.90

Q3 2021

Shares 755,438 Value ($000) $26,999 Avg Close $29.44 Range $17.72 - $36.50

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2022	19,161	$878	$42.95	$35.35 - $52.40
Q3 2022	159,214	$7,714	$48.13	$38.16 - $55.80
Q2 2022	56,859	$2,234	$40.26	$33.60 - $49.41
Q1 2022	409,550	$15,076	$35.53	$29.26 - $46.95
Q4 2021	660,815	$30,120	$38.59	$33.41 - $47.90
Q3 2021	755,438	$26,999	$29.44	$17.72 - $36.50