ARROWHEAD PHARMACEUTICALS IN

Ticker: ARWR CUSIP: 04280A100 Class: Common Stock

Weiss Asset Management LP's Holding History (CIK: 0001357550)

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

Q4 2025

Shares 111,375 Value ($000) $7,394 Avg Close $49.01 Range $34.38 - $72.36

Q1 2018

Shares 16,017 Value ($000) $115 Avg Close $6.16 Range $3.57 - $8.09

Q4 2017

Shares 19,093 Value ($000) $70 Avg Close $3.71 Range $3.01 - $4.54

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	111,375	$7,394	$49.01	$34.38 - $72.36
Q1 2018	16,017	$115	$6.16	$3.57 - $8.09
Q4 2017	19,093	$70	$3.71	$3.01 - $4.54