ARROWHEAD PHARMACEUTICALS IN

Ticker: ARWR CUSIP: 04280A100 Class: Common Stock

ARDSLEY ADVISORY PARTNERS LP's Holding History (CIK: 0000900529)

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

Q2 2018

Shares 20,000 Value ($000) $272 Avg Close $9.35 Range $6.26 - $14.24

Q1 2018

Shares 20,000 Value ($000) $144 Avg Close $6.16 Range $3.57 - $8.09

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2018	20,000	$272	$9.35	$6.26 - $14.24
Q1 2018	20,000	$144	$6.16	$3.57 - $8.09