SEC Filings for Amylyx Pharmaceuticals, Inc. (AMLX)

Last updated: 2026-03-26 21:10 UTC | Total filings: 396

Browse the latest SEC filings and forms submitted by Amylyx Pharmaceuticals, Inc. (AMLX). Access annual reports, quarterly statements, and other official disclosures.

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Form Filing Date Description Link
SCHEDULE 13G/A March 26, 2026 - View Document
8-K March 24, 2026 8-K View Document
4 March 9, 2026 4 View Document
4 March 9, 2026 4 View Document
4 March 9, 2026 4 View Document
4 March 9, 2026 4 View Document
4 March 9, 2026 4 View Document
4 March 4, 2026 4 View Document
4 March 4, 2026 4 View Document
4 March 4, 2026 4 View Document
4 March 4, 2026 4 View Document
4 March 4, 2026 4 View Document
S-8 March 3, 2026 S-8 View Document
S-3ASR March 3, 2026 S-3ASR View Document
10-K March 3, 2026 10-K View Document
8-K March 3, 2026 8-K View Document
144 March 2, 2026 - View Document
144 March 2, 2026 - View Document
144 March 2, 2026 - View Document
144 March 2, 2026 - View Document
144 March 2, 2026 - View Document
4 Feb. 25, 2026 4 View Document
144 Feb. 23, 2026 - View Document
SCHEDULE 13G/A Feb. 17, 2026 - View Document
SCHEDULE 13G/A Feb. 12, 2026 - View Document
SCHEDULE 13G/A Feb. 5, 2026 - View Document
4 Feb. 4, 2026 4 View Document
4 Feb. 4, 2026 4 View Document
4 Feb. 4, 2026 4 View Document
4 Feb. 4, 2026 4 View Document
144 Feb. 2, 2026 - View Document
144 Feb. 2, 2026 - View Document
144 Feb. 2, 2026 - View Document
144 Feb. 2, 2026 - View Document
SCHEDULE 13G Jan. 30, 2026 - View Document
SCHEDULE 13G/A Jan. 21, 2026 - View Document
4 Jan. 20, 2026 4 View Document
4 Jan. 20, 2026 4 View Document
144 Jan. 16, 2026 - View Document
144 Jan. 16, 2026 - View Document
144 Jan. 15, 2026 - View Document
144 Jan. 15, 2026 - View Document
4 Jan. 14, 2026 4 View Document
4 Jan. 8, 2026 4 View Document
4 Jan. 8, 2026 4 View Document
4 Jan. 8, 2026 4 View Document
8-K Jan. 8, 2026 8-K View Document
144 Jan. 6, 2026 - View Document
144 Jan. 6, 2026 - View Document
144 Jan. 6, 2026 - View Document
4 Dec. 23, 2025 4 View Document
4 Dec. 3, 2025 4 View Document
144 Dec. 1, 2025 - View Document
SCHEDULE 13G Nov. 17, 2025 - View Document
SCHEDULE 13G/A Nov. 14, 2025 - View Document
SCHEDULE 13G/A Nov. 14, 2025 - View Document
SCHEDULE 13G/A Nov. 13, 2025 - View Document
8-K Nov. 6, 2025 8-K View Document
10-Q Nov. 6, 2025 10-Q View Document
SCHEDULE 13G/A Oct. 30, 2025 - View Document
SCHEDULE 13G Oct. 7, 2025 - View Document
4 Oct. 2, 2025 4 View Document
4 Oct. 2, 2025 4 View Document
4 Oct. 2, 2025 4 View Document
4 Oct. 2, 2025 4 View Document
4 Oct. 2, 2025 4 View Document
8-K Sept. 10, 2025 8-K View Document
424B5 Sept. 10, 2025 424B5 View Document
424B5 Sept. 9, 2025 424B5 View Document
8-K Aug. 27, 2025 8-K View Document
4 Aug. 14, 2025 4 View Document
SCHEDULE 13G/A Aug. 12, 2025 - View Document
144 Aug. 12, 2025 - View Document
8-K Aug. 7, 2025 8-K View Document
10-Q Aug. 7, 2025 10-Q View Document
SCHEDULE 13G July 29, 2025 - View Document
SCHEDULE 13G June 25, 2025 - View Document
4 June 9, 2025 4 View Document
4 June 9, 2025 4 View Document
4 June 9, 2025 4 View Document
4 June 9, 2025 4 View Document
4 June 9, 2025 4 View Document
8-K June 5, 2025 8-K View Document
4 May 27, 2025 4 View Document
SCHEDULE 13G/A May 15, 2025 - View Document
SCHEDULE 13G/A May 15, 2025 - View Document
SCHEDULE 13G May 12, 2025 - View Document
8-K May 8, 2025 8-K View Document
10-Q May 8, 2025 10-Q View Document
DEF 14A April 24, 2025 DEF 14A View Document
ARS April 24, 2025 ARS View Document
DEFA14A April 24, 2025 DEFA14A View Document
4 April 2, 2025 4 View Document
4 April 2, 2025 4 View Document
4 April 2, 2025 4 View Document
4 April 2, 2025 4 View Document
4 April 2, 2025 4 View Document
EFFECT March 26, 2025 - View Document
CORRESP March 24, 2025 - View Document
4 March 24, 2025 4 View Document
4 March 10, 2025 4 View Document
4 March 10, 2025 4 View Document
4 March 10, 2025 4 View Document
4 March 10, 2025 4 View Document
4 March 10, 2025 4 View Document
UPLOAD March 5, 2025 - View Document
4 March 5, 2025 4 View Document
4 March 5, 2025 4 View Document
4 March 5, 2025 4 View Document
S-8 March 4, 2025 S-8 View Document
8-K March 4, 2025 8-K View Document
POSASR March 4, 2025 POSASR View Document
10-K March 4, 2025 10-K View Document
S-3 March 4, 2025 S-3 View Document
4 Feb. 26, 2025 4 View Document
SCHEDULE 13G/A Feb. 14, 2025 - View Document
SCHEDULE 13G/A Feb. 14, 2025 - View Document
4 Feb. 6, 2025 4 View Document
4 Feb. 5, 2025 4 View Document
4 Feb. 5, 2025 4 View Document
4 Feb. 5, 2025 4 View Document
4 Jan. 28, 2025 4 View Document
SCHEDULE 13G Jan. 14, 2025 - View Document
424B5 Jan. 10, 2025 424B5 FINAL View Document
8-K Jan. 10, 2025 8-K View Document
424B5 Jan. 10, 2025 424B5 View Document
4 Jan. 8, 2025 4 View Document
4 Jan. 8, 2025 4 View Document
8-K Dec. 30, 2024 8-K View Document
4 Dec. 3, 2024 4 View Document
SC 13G/A Nov. 12, 2024 - View Document
10-Q Nov. 7, 2024 10-Q View Document
8-K Nov. 7, 2024 8-K View Document
4 Nov. 6, 2024 4 View Document
SC 13G Nov. 4, 2024 - View Document
SC 13G Oct. 25, 2024 SC 13G View Document
8-K Oct. 17, 2024 8-K View Document
4 Oct. 2, 2024 4 View Document
4 Oct. 2, 2024 4 View Document
4 Oct. 2, 2024 4 View Document
4 Oct. 2, 2024 4 View Document
4 Sept. 25, 2024 4 View Document
4 Sept. 16, 2024 4 View Document
4 Sept. 16, 2024 4 View Document
4 Sept. 9, 2024 4 View Document
4 Sept. 5, 2024 4 View Document
4/A Sept. 5, 2024 4/A View Document
SC 13G Aug. 26, 2024 SC 13G View Document
8-K Aug. 8, 2024 8-K View Document
10-Q Aug. 8, 2024 10-Q View Document
8-K July 10, 2024 8-K View Document
SC 13G/A July 8, 2024 - View Document
8-K June 21, 2024 8-K View Document
4 June 7, 2024 4 View Document
4 June 7, 2024 4 View Document
4 June 7, 2024 4 View Document
4 June 7, 2024 4 View Document
4 June 7, 2024 4 View Document
8-K June 6, 2024 8-K View Document
4 May 16, 2024 4 View Document
4 May 16, 2024 4 View Document
144 May 15, 2024 - View Document
8-K May 9, 2024 8-K View Document
10-Q May 9, 2024 10-Q View Document
DEF 14A April 24, 2024 DEF 14A View Document
DEFA14A April 24, 2024 DEFA14A View Document
ARS April 24, 2024 ARS View Document
4 April 18, 2024 4 View Document
4 April 18, 2024 4 View Document
4 April 18, 2024 4 View Document
4 April 18, 2024 4 View Document
4 April 18, 2024 4 View Document
8-K April 10, 2024 8-K View Document
8-K April 4, 2024 8-K View Document
4 March 15, 2024 4 View Document
3 March 15, 2024 3 View Document
8-K March 14, 2024 8-K View Document
SC 13G March 11, 2024 SC 13G View Document
8-K March 8, 2024 8-K View Document
4 March 7, 2024 4 View Document
4 March 7, 2024 4 View Document
4 March 7, 2024 4 View Document
4 March 7, 2024 4 View Document
4 Feb. 28, 2024 4 View Document
4 Feb. 28, 2024 4 View Document
4 Feb. 28, 2024 4 View Document
4 Feb. 28, 2024 4 View Document
4 Feb. 27, 2024 4 View Document
10-K Feb. 22, 2024 10-K View Document
S-8 Feb. 22, 2024 S-8 View Document
8-K Feb. 22, 2024 8-K View Document
SC 13G/A Feb. 14, 2024 AMYLYX PHARMACEUTICALS, INC. View Document
SC 13G/A Feb. 14, 2024 SC 13G/A View Document
SC 13G/A Feb. 14, 2024 - View Document
SC 13G/A Feb. 13, 2024 SCHEDULE 13G/A View Document
SC 13G Jan. 29, 2024 - View Document
4 Jan. 29, 2024 4 View Document
4 Jan. 18, 2024 4 View Document
4 Jan. 11, 2024 4 View Document
4 Jan. 11, 2024 4 View Document
4 Jan. 11, 2024 4 View Document
4 Jan. 11, 2024 4 View Document
4 Dec. 29, 2023 4 View Document
UPLOAD Dec. 20, 2023 - View Document
4 Dec. 19, 2023 4 View Document
CORRESP Dec. 19, 2023 - View Document
SC 13G Dec. 11, 2023 AMYLYX PHARMACEUTICALS, INC. View Document
8-K Dec. 7, 2023 8-K View Document
UPLOAD Dec. 5, 2023 - View Document
3 Nov. 29, 2023 3 View Document
4 Nov. 29, 2023 4 View Document
4 Nov. 20, 2023 4 View Document
10-Q Nov. 9, 2023 10-Q View Document
8-K Nov. 9, 2023 8-K View Document
4 Nov. 2, 2023 4 View Document
8-K Oct. 13, 2023 8-K View Document
SC 13D/A Oct. 4, 2023 SC 13D/A View Document
4 Aug. 24, 2023 4 View Document
SC 13D/A Aug. 17, 2023 SC 13D/A View Document
4 Aug. 17, 2023 FORM 4 SUBMISSION View Document
4 Aug. 17, 2023 4 View Document
144 Aug. 15, 2023 - View Document
10-Q Aug. 10, 2023 10-Q View Document
S-8 Aug. 10, 2023 S-8 View Document
8-K Aug. 10, 2023 8-K View Document
8-K July 26, 2023 8-K View Document
4 July 14, 2023 4 View Document
8-K June 23, 2023 8-K View Document
4 June 12, 2023 FORM 4 SUBMISSION View Document
4 June 12, 2023 FORM 4 SUBMISSION View Document
4 June 12, 2023 FORM 4 SUBMISSION View Document
4 June 12, 2023 FORM 4 SUBMISSION View Document
SC 13G June 9, 2023 - View Document
8-K June 9, 2023 8-K View Document
4 May 24, 2023 4 View Document
4 May 19, 2023 4 View Document
4 May 18, 2023 FORM 4 SUBMISSION View Document
4 May 17, 2023 4 View Document
144 May 16, 2023 - View Document
144 May 15, 2023 - View Document
8-K May 11, 2023 8-K View Document
10-Q May 11, 2023 10-Q View Document
DEFA14A April 27, 2023 DEFA14A View Document
DEF 14A April 27, 2023 DEF 14A View Document
ARS April 27, 2023 ARS View Document
4/A April 26, 2023 FORM 4/A SUBMISSION View Document
3/A April 26, 2023 FORM 3/A SUBMISSION View Document
4 April 19, 2023 FORM 4 SUBMISSION View Document
144 April 17, 2023 - View Document
SC 13D/A April 3, 2023 SC 13D/A View Document
4 March 31, 2023 FORM 4 SUBMISSION View Document
4 March 29, 2023 FORM 4 SUBMISSION View Document
4/A March 24, 2023 FORM 4/A SUBMISSION View Document
4/A March 24, 2023 FORM 4/A SUBMISSION View Document
4 March 23, 2023 FORM 4 SUBMISSION View Document
8-K March 21, 2023 8-K View Document
4 March 20, 2023 FORM 4 SUBMISSION View Document
4 March 20, 2023 FORM 4 SUBMISSION View Document
4 March 20, 2023 FORM 4 SUBMISSION View Document
4 March 20, 2023 FORM 4 SUBMISSION View Document
3 March 20, 2023 FORM 3 SUBMISSION View Document
4 March 20, 2023 FORM 4 SUBMISSION View Document
4 March 20, 2023 FORM 4 SUBMISSION View Document
4 March 20, 2023 FORM 4 SUBMISSION View Document
4 March 20, 2023 FORM 4 SUBMISSION View Document
4 March 17, 2023 FORM 4 SUBMISSION View Document
4 March 16, 2023 FORM 4 SUBMISSION View Document
144 March 16, 2023 - View Document
144 March 16, 2023 - View Document
144 March 16, 2023 - View Document
144 March 16, 2023 - View Document
144 March 16, 2023 - View Document
S-8 March 13, 2023 S-8 View Document
8-K March 13, 2023 8-K View Document
10-K March 13, 2023 10-K View Document
S-3ASR March 13, 2023 S-3ASR View Document
4 March 6, 2023 FORM 4 SUBMISSION View Document
4 Feb. 28, 2023 FORM 4 SUBMISSION View Document
4 Feb. 28, 2023 FORM 4 SUBMISSION View Document
4 Feb. 24, 2023 FORM 4 SUBMISSION View Document
8-K Feb. 14, 2023 8-K View Document
SC 13G/A Feb. 14, 2023 SC 13G/A View Document
5 Feb. 14, 2023 FORM 5 SUBMISSION View Document
SC 13G/A Feb. 14, 2023 SC 13G/A View Document
SC 13G Feb. 13, 2023 - View Document
SC 13G Feb. 9, 2023 SCHEDULE 13G View Document
5 Jan. 11, 2023 FORM 5 SUBMISSION View Document
4 Jan. 10, 2023 FORM 4 SUBMISSION View Document
4 Jan. 10, 2023 FORM 4 SUBMISSION View Document
4 Jan. 10, 2023 FORM 4 SUBMISSION View Document
4 Jan. 10, 2023 FORM 4 SUBMISSION View Document
4 Jan. 10, 2023 FORM 4 SUBMISSION View Document
4 Jan. 4, 2023 FORM 4 SUBMISSION View Document
8-K Dec. 6, 2022 8-K View Document
10-Q Nov. 10, 2022 10-Q View Document
8-K Nov. 10, 2022 8-K View Document
8-K Nov. 2, 2022 8-K View Document
424B4 Oct. 7, 2022 424B4 View Document
EFFECT Oct. 6, 2022 - View Document
S-1MEF Oct. 6, 2022 S-1MEF View Document
S-1 Oct. 4, 2022 S-1 View Document
CORRESP Oct. 4, 2022 - View Document
CORRESP Oct. 4, 2022 - View Document
8-K Sept. 30, 2022 8-K View Document
SC 13D/A Sept. 30, 2022 SC 13D/A View Document
SC 13G Sept. 21, 2022 - View Document
SC 13G/A Sept. 12, 2022 SC 13G/A View Document
4 Sept. 9, 2022 FORM 4 View Document
UPLOAD Aug. 31, 2022 - View Document
DRS Aug. 24, 2022 - View Document
8-K Aug. 11, 2022 8-K View Document
8-K Aug. 11, 2022 8-K View Document
10-Q Aug. 11, 2022 10-Q View Document
4 July 8, 2022 FORM 4 SUBMISSION View Document
8-K July 5, 2022 8-K View Document
SC 13G June 21, 2022 SC 13G View Document
8-K June 13, 2022 8-K View Document
4 June 10, 2022 FORM 4 SUBMISSION View Document
4 June 10, 2022 FORM 4 SUBMISSION View Document
4 June 10, 2022 FORM 4 SUBMISSION View Document
4 June 10, 2022 FORM 4 SUBMISSION View Document
8-K June 9, 2022 8-K View Document
8-K June 3, 2022 8-K View Document
8-K May 12, 2022 8-K View Document
10-Q May 12, 2022 10-Q View Document
4 May 6, 2022 FORM 4 SUBMISSION View Document
4 May 6, 2022 FORM 4 SUBMISSION View Document
3 May 5, 2022 FORM 3 SUBMISSION View Document
4 May 5, 2022 FORM 4 SUBMISSION View Document
DEF 14A April 29, 2022 DEF 14A View Document
DEFA14A April 29, 2022 DEFA14A View Document
10-K March 31, 2022 10-K View Document
8-K March 31, 2022 8-K View Document
4 March 28, 2022 FORM 4 SUBMISSION View Document
4/A March 17, 2022 FORM 4/A SUBMISSION View Document
3/A March 17, 2022 FORM 3/A SUBMISSION View Document
3 Feb. 28, 2022 FORM 3 SUBMISSION View Document
4 Feb. 28, 2022 FORM 4 SUBMISSION View Document
SC 13D Jan. 25, 2022 SC 13D View Document
4 Jan. 25, 2022 FORM 4 SUBMISSION View Document
3 Jan. 25, 2022 FORM 3 SUBMISSION View Document
SC 13G Jan. 21, 2022 SC 13G View Document
3 Jan. 21, 2022 FORM 3 View Document
4 Jan. 13, 2022 FORM 4 View Document
S-8 Jan. 12, 2022 S-8 View Document
8-K Jan. 11, 2022 8-K View Document
3 Jan. 11, 2022 FORM 3 View Document
4 Jan. 10, 2022 FORM 4 SUBMISSION View Document
4 Jan. 10, 2022 FORM 4 SUBMISSION View Document
4 Jan. 10, 2022 FORM 4 SUBMISSION View Document
4 Jan. 10, 2022 FORM 4 SUBMISSION View Document
4 Jan. 10, 2022 FORM 4 SUBMISSION View Document
4 Jan. 10, 2022 FORM 4 SUBMISSION View Document
4 Jan. 10, 2022 FORM 4 SUBMISSION View Document
4 Jan. 10, 2022 FORM 4 SUBMISSION View Document
4 Jan. 10, 2022 FORM 4 SUBMISSION View Document
424B4 Jan. 10, 2022 424B4 View Document
CERT Jan. 6, 2022 - View Document
SEC STAFF LETTER Jan. 6, 2022 - View Document
EFFECT Jan. 6, 2022 - View Document
S-1MEF Jan. 6, 2022 S-1MEF View Document
3 Jan. 6, 2022 FORM 3 SUBMISSION View Document
3 Jan. 6, 2022 FORM 3 SUBMISSION View Document
3 Jan. 6, 2022 FORM 3 SUBMISSION View Document
3 Jan. 6, 2022 FORM 3 SUBMISSION View Document
3 Jan. 6, 2022 FORM 3 SUBMISSION View Document
3 Jan. 6, 2022 FORM 3 SUBMISSION View Document
3 Jan. 6, 2022 FORM 3 SUBMISSION View Document
3 Jan. 6, 2022 FORM 3 SUBMISSION View Document
3 Jan. 6, 2022 FORM 3 SUBMISSION View Document
FWP Jan. 4, 2022 FWP View Document
CORRESP Jan. 4, 2022 - View Document
CORRESP Jan. 4, 2022 - View Document
8-A12B Jan. 4, 2022 8-A12B View Document
S-1/A Jan. 3, 2022 S-1/A View Document
S-1 Dec. 16, 2021 S-1 View Document
CORRESP Dec. 16, 2021 - View Document
UPLOAD Dec. 9, 2021 - View Document
SEC STAFF LETTER Dec. 1, 2021 - View Document
DRS/A Nov. 26, 2021 - View Document
DRSLTR Nov. 24, 2021 - View Document
UPLOAD Nov. 23, 2021 - View Document
DRS/A Oct. 20, 2021 - View Document
DRSLTR Oct. 20, 2021 - View Document
UPLOAD May 28, 2021 - View Document
DRS April 26, 2021 - View Document
D July 1, 2020 - View Document
D/A Jan. 28, 2020 - View Document
D Dec. 31, 2019 - View Document
D/A Dec. 31, 2019 - View Document
D Nov. 20, 2018 - View Document
D Aug. 4, 2017 - View Document
D Aug. 22, 2016 - View Document
D/A Aug. 22, 2016 - View Document
D/A Nov. 20, 2015 - View Document
D Nov. 17, 2015 - View Document