AMYLYX PHARMACEUTICALS INC

Ticker: AMLX CUSIP: 03237H101 Class: Common Stock

DEERFIELD MANAGEMENT COMPANY, L.P.'s Holding History (CIK: 0001009258)

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

Q2 2023

Shares 1,050,198 Value ($000) $22,653 Avg Close $27.01 Range $20.79 - $31.77

Q1 2023

Shares 1,984,333 Value ($000) $58,220 Avg Close $34.74 Range $26.64 - $41.93

Q4 2022

Shares 2,693,000 Value ($000) $99,506 Avg Close $35.49 Range $28.13 - $39.77

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2023	1,050,198	$22,653	$27.01	$20.79 - $31.77
Q1 2023	1,984,333	$58,220	$34.74	$26.64 - $41.93
Q4 2022	2,693,000	$99,506	$35.49	$28.13 - $39.77