Amylyx Pharmaceuticals, Inc.

AMLX·NASDAQ·$13.68Share Price as of 11/2·$1BMarket Cap as of 11/2

Financials

10-QQ2 ended 06/30/2608/06/26 10-QQ1 ended 03/31/2605/07/26 10-KFY 202503/03/26 10-QQ3 ended 09/30/2511/06/25 10-QQ2 ended 06/30/2508/07/25

Disclosures

8-KCurrent report09/08/26 8-KCurrent report08/20/26 8-KCurrent report08/18/26 8-KCurrent report08/18/26 8-KCurrent report08/06/26

Prospectuses and Registrations

424B5Prospectus supplement08/20/26 424B5Prospectus supplement08/18/26 S-3ASRAutomatic shelf registration03/03/26 S-8Registration of securities for employees03/03/26 424B5Prospectus supplement09/10/25

Proxies

DEF 14ADefinitive proxy04/23/26 DEFA14AAdditional proxy materials04/23/26 DEF 14ADefinitive proxy04/24/25 DEFA14AAdditional proxy materials04/24/25 DEF 14ADefinitive proxy04/24/24

Ownership

Form 4Insider transaction10/07/26 144Proposed sale of securities10/05/26 Form 4Insider transaction09/14/26 Form 4Insider transaction09/14/26 Form 4Insider transaction09/14/26

Other

ARSAnnual report to shareholders04/23/26 ARSAnnual report to shareholders04/24/25 EFFECTRequest for effectiveness03/26/25 CORRESPCorrespondence with the SEC03/24/25 UPLOADLetter from the SEC03/05/25