GUARDANT HEALTH INC

Ticker: GH CUSIP: 40131M109 Class: EQTY

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

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

Q2 2019

Shares 3,931 Value ($000) $339 Avg Close $76.37 Range $61.69 - $94.44

Q1 2019

Shares 6,949 Value ($000) $533 Avg Close $55.44 Range $33.70 - $106.58

Q4 2018

Shares 20,586 Value ($000) $774 Avg Close $36.84 Range $27.04 - $49.55

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2019	3,931	$339	$76.37	$61.69 - $94.44
Q1 2019	6,949	$533	$55.44	$33.70 - $106.58
Q4 2018	20,586	$774	$36.84	$27.04 - $49.55