Company · CIK 866291

# ALLEGRO MICROSYSTEMS, INC.

| CIK | [866291](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0000866291) (SEC EDGAR) |
| --- | --- |
| Industry (SIC) | 3674 — Semiconductors & Related Devices |
| Business address | NH |
| Listed | ALGM (Nasdaq) |
| First annual or quarterly report | 2020-11-20 |

## Offerings

 5 registrations

| Registration | Label and status | First filed | Last event | Filings |
| --- | --- | --- | --- | --- |
| 333-280960 | Shelf Effective | 2024-07-23 | 2024-07-25 | 3 |
| 333-260647 | Shelf Effective | 2021-11-01 | 2021-11-01 | 1 |
| 333-252667 | Registered company Final prospectus | 2021-02-02 | 2021-02-08 | 3 |
| 333-249348 | IPO Final prospectus | 2020-10-06 | 2020-10-30 | 5 |
| 333-145254 | First-time registration Withdrawn | 2007-08-08 | 2008-08-11 | 5 |

## Filings

 19

| Filed | Filing | Registration | Accession |
| --- | --- | --- | --- |
| 2024-07-25 | [424B5](https://www.sec.gov/Archives/edgar/data/866291/000095010324010788/0000950103-24-010788-index.htm) Shelf takedown | 333-280960 | 0000950103-24-010788 |
| 2024-07-23 | [424B5](https://www.sec.gov/Archives/edgar/data/866291/000095010324010524/0000950103-24-010524-index.htm) Shelf takedown | 333-280960 | 0000950103-24-010524 |
| 2024-07-23 | [S-3ASR](https://www.sec.gov/Archives/edgar/data/866291/000095010324010515/0000950103-24-010515-index.htm) Shelf registered | 333-280960 | 0000950103-24-010515 |
| 2021-11-01 | [S-3ASR](https://www.sec.gov/Archives/edgar/data/866291/000086629121000048/0000866291-21-000048-index.htm) Shelf registered | 333-260647 | 0000866291-21-000048 |
| 2021-02-08 | [424B4](https://www.sec.gov/Archives/edgar/data/866291/000119312521032354/0001193125-21-032354-index.htm) Final prospectus | 333-252667 | 0001193125-21-032354 |
| 2021-02-04 | [EFFECT](https://www.sec.gov/Archives/edgar/data/866291/999999999521000464/9999999995-21-000464-index.htm) Declared effective | 333-252667 | 9999999995-21-000464 |
| 2021-02-02 | [S-1](https://www.sec.gov/Archives/edgar/data/866291/000119312521025893/0001193125-21-025893-index.htm) Registration filed | 333-252667 | 0001193125-21-025893 |
| 2021-01-25 | [DRS](https://www.sec.gov/Archives/edgar/data/866291/000095012321000562/0000950123-21-000562-index.htm) Draft made public | 377-04087 | 0000950123-21-000562 |
| 2020-10-30 | [424B4](https://www.sec.gov/Archives/edgar/data/866291/000119312520282664/0001193125-20-282664-index.htm) Final prospectus | 333-249348 | 0001193125-20-282664 |
| 2020-10-28 | [EFFECT](https://www.sec.gov/Archives/edgar/data/866291/999999999520003009/9999999995-20-003009-index.htm) Declared effective | 333-249348 | 9999999995-20-003009 |
| 2020-10-21 | [S-1/A](https://www.sec.gov/Archives/edgar/data/866291/000119312520273413/0001193125-20-273413-index.htm) Amendment | 333-249348 | 0001193125-20-273413 |
| 2020-10-13 | [S-1/A](https://www.sec.gov/Archives/edgar/data/866291/000119312520268455/0001193125-20-268455-index.htm) Amendment | 333-249348 | 0001193125-20-268455 |
| 2020-10-06 | [S-1](https://www.sec.gov/Archives/edgar/data/866291/000119312520264848/0001193125-20-264848-index.htm) Registration filed | 333-249348 | 0001193125-20-264848 |
| 2020-08-03 | [DRS](https://www.sec.gov/Archives/edgar/data/866291/000095012320007574/0000950123-20-007574-index.htm) Draft made public | 377-03365 | 0000950123-20-007574 |
| 2008-08-11 | [RW](https://www.sec.gov/Archives/edgar/data/866291/000095013508005486/0000950135-08-005486-index.htm) Withdrawn | 333-145254 | 0000950135-08-005486 |
| 2008-03-07 | [S-1/A](https://www.sec.gov/Archives/edgar/data/866291/000095013508001653/0000950135-08-001653-index.htm) Amendment | 333-145254 | 0000950135-08-001653 |
| 2008-01-29 | [S-1/A](https://www.sec.gov/Archives/edgar/data/866291/000095013508000385/0000950135-08-000385-index.htm) Amendment | 333-145254 | 0000950135-08-000385 |
| 2007-11-30 | [S-1/A](https://www.sec.gov/Archives/edgar/data/866291/000095013507007254/0000950135-07-007254-index.htm) Amendment | 333-145254 | 0000950135-07-007254 |
| 2007-08-08 | [S-1](https://www.sec.gov/Archives/edgar/data/866291/000095012307011093/0000950123-07-011093-index.htm) Registration filed | 333-145254 | 0000950123-07-011093 |

[All filings of this company](https://equitycapital.markets/filings?cik=866291) · [CSV](https://equitycapital.markets/filings.csv?cik=866291)

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Source page: https://equitycapital.markets/company/866291 · Data: U.S. SEC EDGAR · CC BY 4.0