Karen Firestone - 23 Dec 2025 Form 4 Insider Report for Amylyx Pharmaceuticals, Inc. (AMLX)

Role
Director
Signature
/s/ Joshua B. Cohen, as Attorney in Fact
Issuer symbol
AMLX
Transactions as of
23 Dec 2025
Net transactions value
+$100,845
Form type
4
Filing time
23 Dec 2025, 20:48:33 UTC
Previous filing
09 Jun 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Firestone Karen Director C/O AMYLYX PHARMACEUTICALS, INC., 55 CAMBRIDGE PARKWAY, SUITE 6W, CAMBRIDGE /s/ Joshua B. Cohen, as Attorney in Fact 23 Dec 2025 0001969821

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction AMLX Common Stock Purchase $100,845 +8,100 +15% $12.45 63,100 23 Dec 2025 Direct
* An asterisk sign (*) next to the price indicates that the price is likely invalid.