Company · CIK 1658551

# Amylyx Pharmaceuticals, Inc.

| CIK | [1658551](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0001658551) (SEC EDGAR) |
| --- | --- |
| Industry (SIC) | 2834 — Pharmaceutical Preparations |
| Incorporated in | DE |
| Business address | MA |
| Listed | AMLX (Nasdaq) |
| First annual or quarterly report | 2022-03-31 |

## Offerings

 5 registrations

| Registration | Label and status | First filed | Last event | Filings |
| --- | --- | --- | --- | --- |
| 333-293956 | Shelf Effective | 2026-03-03 | 2026-08-20 | 3 |
| 333-285525 | Shelf Effective | 2025-03-04 | 2025-09-10 | 4 |
| 333-270505 | Shelf Effective | 2023-03-13 | 2025-01-10 | 3 |
| 333-267730 | Registered company Final prospectus | 2022-10-04 | 2022-10-07 | 3 |
| 333-261703 | IPO Final prospectus | 2021-12-16 | 2022-01-10 | 4 |

## Filings

 19

| Filed | Filing | Registration | Accession |
| --- | --- | --- | --- |
| 2026-08-20 | [424B5](https://www.sec.gov/Archives/edgar/data/1658551/000119312526359416/0001193125-26-359416-index.htm) Shelf takedown | 333-293956 | 0001193125-26-359416 |
| 2026-08-18 | [424B5](https://www.sec.gov/Archives/edgar/data/1658551/000119312526355696/0001193125-26-355696-index.htm) Shelf takedown | 333-293956 | 0001193125-26-355696 |
| 2026-03-03 | [S-3ASR](https://www.sec.gov/Archives/edgar/data/1658551/000119312526086735/0001193125-26-086735-index.htm) Shelf registered | 333-293956 | 0001193125-26-086735 |
| 2025-09-10 | [424B5](https://www.sec.gov/Archives/edgar/data/1658551/000119312525200144/0001193125-25-200144-index.htm) Shelf takedown | 333-285525 | 0001193125-25-200144 |
| 2025-09-09 | [424B5](https://www.sec.gov/Archives/edgar/data/1658551/000119312525199270/0001193125-25-199270-index.htm) Shelf takedown | 333-285525 | 0001193125-25-199270 |
| 2025-03-26 | [EFFECT](https://www.sec.gov/Archives/edgar/data/1658551/999999999525000794/9999999995-25-000794-index.htm) Declared effective | 333-285525 | 9999999995-25-000794 |
| 2025-03-04 | [S-3](https://www.sec.gov/Archives/edgar/data/1658551/000119312525044854/0001193125-25-044854-index.htm) Shelf registered | 333-285525 | 0001193125-25-044854 |
| 2025-01-10 | [424B5](https://www.sec.gov/Archives/edgar/data/1658551/000119312525004537/0001193125-25-004537-index.htm) Shelf takedown | 333-270505 | 0001193125-25-004537 |
| 2025-01-10 | [424B5](https://www.sec.gov/Archives/edgar/data/1658551/000119312525004002/0001193125-25-004002-index.htm) Shelf takedown | 333-270505 | 0001193125-25-004002 |
| 2023-03-13 | [S-3ASR](https://www.sec.gov/Archives/edgar/data/1658551/000119312523069187/0001193125-23-069187-index.htm) Shelf registered | 333-270505 | 0001193125-23-069187 |
| 2022-10-07 | [424B4](https://www.sec.gov/Archives/edgar/data/1658551/000119312522259634/0001193125-22-259634-index.htm) Final prospectus | 333-267730 | 0001193125-22-259634 |
| 2022-10-06 | [EFFECT](https://www.sec.gov/Archives/edgar/data/1658551/999999999522002975/9999999995-22-002975-index.htm) Declared effective | 333-267730 | 9999999995-22-002975 |
| 2022-10-04 | [S-1](https://www.sec.gov/Archives/edgar/data/1658551/000119312522257577/0001193125-22-257577-index.htm) Registration filed | 333-267730 | 0001193125-22-257577 |
| 2022-08-24 | [DRS](https://www.sec.gov/Archives/edgar/data/1658551/000095012322009682/0000950123-22-009682-index.htm) Draft made public | 377-06329 | 0000950123-22-009682 |
| 2022-01-10 | [424B4](https://www.sec.gov/Archives/edgar/data/1658551/000119312522005621/0001193125-22-005621-index.htm) Final prospectus | 333-261703 | 0001193125-22-005621 |
| 2022-01-06 | [EFFECT](https://www.sec.gov/Archives/edgar/data/1658551/999999999522000076/9999999995-22-000076-index.htm) Declared effective | 333-261703 | 9999999995-22-000076 |
| 2022-01-03 | [S-1/A](https://www.sec.gov/Archives/edgar/data/1658551/000119312522000260/0001193125-22-000260-index.htm) Amendment | 333-261703 | 0001193125-22-000260 |
| 2021-12-16 | [S-1](https://www.sec.gov/Archives/edgar/data/1658551/000119312521359405/0001193125-21-359405-index.htm) Registration filed | 333-261703 | 0001193125-21-359405 |
| 2021-04-26 | [DRS](https://www.sec.gov/Archives/edgar/data/1658551/000095012321004949/0000950123-21-004949-index.htm) Draft made public | 377-04729 | 0000950123-21-004949 |

[All filings of this company](https://equitycapital.markets/filings?cik=1658551) · [CSV](https://equitycapital.markets/filings.csv?cik=1658551)

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Source page: https://equitycapital.markets/company/1658551 · Data: U.S. SEC EDGAR · CC BY 4.0