CYTOKINETICS INC

Ticker: CYTK CUSIP: 23282W605 Class: EQTY

ESSEX INVESTMENT MANAGEMENT CO LLC's Holding History (CIK: 0000201772)

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

Q1 2018

Shares 84,690 Value ($000) $610 Avg Close $8.57 Range $7.15 - $10.26

Q4 2017

Shares 107,728 Value ($000) $878 Avg Close $11.35 Range $7.00 - $15.95

Q3 2017

Shares 78,758 Value ($000) $1,142 Avg Close $13.66 Range $11.78 - $15.33

Q2 2017

Shares 46,529 Value ($000) $563 Avg Close $13.90 Range $11.00 - $17.20

Q1 2017

Shares 29,019 Value ($000) $373 Avg Close $11.69 Range $9.80 - $13.70

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2018	84,690	$610	$8.57	$7.15 - $10.26
Q4 2017	107,728	$878	$11.35	$7.00 - $15.95
Q3 2017	78,758	$1,142	$13.66	$11.78 - $15.33
Q2 2017	46,529	$563	$13.90	$11.00 - $17.20
Q1 2017	29,019	$373	$11.69	$9.80 - $13.70