Camille L. Bedrosian - 18 Aug 2026 Form 4 Insider Report for Amylyx Pharmaceuticals, Inc. (AMLX)

Reporting relationship: Chief Medical Officer
Issuer ticker: AMLX
Reported as of: 18 Aug 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 20 Aug 2026, 21:00:05 UTC
Prior SEC filing: 22 Jun 2026
Next SEC filing: 01 Sep 2026
Source filing: View source filing
Reporting owner signature: /s/ Joshua B. Cohen, as Attorney in Fact

Key filing fact

Camille L. Bedrosian filed Form 4 for Amylyx Pharmaceuticals, Inc. (AMLX) on 20 Aug 2026.

Key facts

This page summarizes Camille L. Bedrosian's Form 4 filing for Amylyx Pharmaceuticals, Inc. (AMLX).
1 reported transaction and 0 derivative rows are listed below.
Accepted by SEC: 20 Aug 2026, 21:00.

Change

Previous filing in this sequence was filed on 22 Jun 2026.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001326969 Primary reporting owner

Bedrosian Camille L

Relationship: Chief Medical Officer
Address: C/O AMYLYX PHARMACEUTICALS, INC., 55 CAMBRIDGE PARKWAY, SUITE 6W, CAMBRIDGE
Signature: /s/ Joshua B. Cohen, as Attorney in Fact
Signature date: 20 Aug 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

AMLX transaction

Common Stock

Award

Transaction value
Shares: +22,807
Change %: +8.6%
Price: $0.000000^*
Shares after: 288,092
Date: 18 Aug 2026
Ownership: Direct
Footnotes: F1

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 1 footnote

Footnote F1

The reported shares are represented by performance share units, or PSUs, and were awarded upon the achievement of certain performance metrics. Shares subject to the PSU vested on August 18, 2026.