SANGAMO THERAPEUTICS INC

Ticker: SGMO CUSIP: 800677106 Class: COM

EcoR1 Capital, LLC's Holding History (CIK: 0001587114)

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

Q1 2020

Shares 2,308,079 Value ($000) $14,702 Avg Close $7.42 Range $4.81 - $9.19

Q4 2018

Shares 1,185,831 Value ($000) $13,613 Avg Close $12.42 Range $9.00 - $17.19

Q3 2018

Shares 343,231 Value ($000) $5,818 Avg Close $15.20 Range $12.60 - $19.25

Q2 2018

Shares 1,509,671 Value ($000) $21,437 Avg Close $16.61 Range $13.00 - $20.55

Q3 2017

Shares 222,388 Value ($000) $3,336 Avg Close $11.05 Range $8.00 - $15.30

Q2 2017

Shares 2,568,119 Value ($000) $22,599 Avg Close $6.42 Range $4.05 - $9.65

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2020	2,308,079	$14,702	$7.42	$4.81 - $9.19
Q4 2018	1,185,831	$13,613	$12.42	$9.00 - $17.19
Q3 2018	343,231	$5,818	$15.20	$12.60 - $19.25
Q2 2018	1,509,671	$21,437	$16.61	$13.00 - $20.55
Q3 2017	222,388	$3,336	$11.05	$8.00 - $15.30
Q2 2017	2,568,119	$22,599	$6.42	$4.05 - $9.65