ARROWHEAD PHARMACEUTICALS IN

Ticker: ARWR CUSIP: 04280A100 Class: Common Stock

DRIEHAUS CAPITAL MANAGEMENT LLC's Holding History (CIK: 0000938206)

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

Q4 2025

Shares 1,769,340 Value ($000) $117,466 Avg Close $49.01 Range $34.38 - $72.36

Q3 2025

Shares 2,099,398 Value ($000) $72,408 Avg Close $21.98 Range $14.30 - $34.61

Q4 2023

Shares 29,493 Value ($000) $902 Avg Close $26.56 Range $20.67 - $31.68

Q3 2023

Shares 29,493 Value ($000) $792 Avg Close $30.63 Range $26.04 - $36.43

Q2 2023

Shares 507,661 Value ($000) $18,103 Avg Close $34.48 Range $24.64 - $42.48

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	1,769,340	$117,466	$49.01	$34.38 - $72.36
Q3 2025	2,099,398	$72,408	$21.98	$14.30 - $34.61
Q4 2023	29,493	$902	$26.56	$20.67 - $31.68
Q3 2023	29,493	$792	$30.63	$26.04 - $36.43
Q2 2023	507,661	$18,103	$34.48	$24.64 - $42.48