AMYLYX PHARMACEUTICALS INC

Ticker: AMLX CUSIP: 03237H101 Class: Common Stock

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

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

Q4 2025

Shares 3,109,503 Value ($000) $37,563 Avg Close $13.58 Range $11.69 - $16.96

Q3 2025

Shares 2,420,767 Value ($000) $32,898 Avg Close $9.41 Range $5.97 - $15.14

Q2 2025

Shares 1,264,997 Value ($000) $8,109 Avg Close $4.86 Range $3.11 - $6.70

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	3,109,503	$37,563	$13.58	$11.69 - $16.96
Q3 2025	2,420,767	$32,898	$9.41	$5.97 - $15.14
Q2 2025	1,264,997	$8,109	$4.86	$3.11 - $6.70