ALLEGRO MICROSYSTEMS, INC. — All Filings
466 total filings on record
Public companies registered with the SEC are required to file periodic reports, disclosures, and notices throughout the year. The most important are the 10-K (annual report), 10-Q (quarterly report), and 8-K (material event notice). Use the filters below to narrow by form type.
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10-K
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144
3
4
424B4
424B5
424B7
425
5
8-A12B
8-K
8-K/A
ARS
CERT
CORRESP
DEF 14A
DEFA14A
DRS
DRS/A
DRSLTR
EFFECT
FWP
RW
S-1
S-1/A
S-1MEF
S-3ASR
S-8
SC 13G
SC 13G/A
SCHEDULE 13G
SCHEDULE 13G/A
SD
SEC STAFF LETTER
UPLOAD
| Form | Description | Accession Number | Filed | Period |
|---|---|---|---|---|
| 4 | 4 | 0000950170-25-074377 | May 19, 2025 | May 15, 2025 |
| 4 | 4 | 0000950170-25-074371 | May 19, 2025 | May 15, 2025 |
| 4 | 4 | 0000950170-25-074372 | May 19, 2025 | May 15, 2025 |
| 4 | 4 | 0000950170-25-074373 | May 19, 2025 | May 15, 2025 |
| 4 | 4 | 0000950170-25-074375 | May 19, 2025 | May 15, 2025 |
| 4 | 4 | 0000950170-25-071492 | May 14, 2025 | May 13, 2025 |
| 4 | 4 | 0000950170-25-071489 | May 14, 2025 | May 13, 2025 |
| 4 | 4 | 0000950170-25-071493 | May 14, 2025 | May 13, 2025 |
| 4 | 4 | 0000950170-25-071490 | May 14, 2025 | May 13, 2025 |
| 4 | 4 | 0000950170-25-071491 | May 14, 2025 | May 13, 2025 |
| SCHEDULE 13G | — | 0001422848-25-000068 | May 13, 2025 | — |
| SCHEDULE 13G/A | — | 0000315066-25-001445 | May 12, 2025 | — |
| 8-K | 8-K | 0000950170-25-066360 | May 8, 2025 | — |
| 3 | 3 | 0000950170-25-047747 | Mar 31, 2025 | Mar 29, 2025 |
| 8-K | 8-K | 0000950170-25-037637 | Mar 12, 2025 | — |
| 425 | 425 | 0001193125-25-047736 | Mar 6, 2025 | — |
| 4 | 4 | 0000950170-25-030870 | Mar 3, 2025 | Feb 27, 2025 |
| 4 | 4 | 0000950170-25-030871 | Mar 3, 2025 | Feb 27, 2025 |
| 4 | 4 | 0000950170-25-030872 | Mar 3, 2025 | Feb 27, 2025 |
| 8-K | FORM 8-K | 0000950103-25-002318 | Feb 24, 2025 | — |
| SCHEDULE 13G/A | — | 0000315066-25-000750 | Feb 12, 2025 | — |
| 8-K | 8-K | 0000950170-25-015395 | Feb 6, 2025 | — |
| 4 | 4 | 0000950170-25-012340 | Feb 3, 2025 | Jan 31, 2025 |
| 8-K | 8-K | 0000950170-25-012020 | Feb 3, 2025 | Jan 31, 2025 |
| 3 | 3 | 0000950170-25-012335 | Feb 3, 2025 | Jan 31, 2025 |
| 10-Q | 10-Q | 0000950170-25-011434 | Jan 31, 2025 | Dec 27, 2024 |
| 8-K | 8-K | 0000950170-25-010785 | Jan 30, 2025 | — |
| 8-K | 8-K | 0000950170-25-003826 | Jan 10, 2025 | Jan 9, 2025 |
| 8-K | 8-K | 0000950170-25-001662 | Jan 6, 2025 | — |
| 8-K | 8-K | 0000950170-24-139583 | Dec 23, 2024 | — |
| 4 | 4 | 0000950170-24-128616 | Nov 19, 2024 | Nov 18, 2024 |
| 4 | 4 | 0000950170-24-128615 | Nov 19, 2024 | Nov 18, 2024 |
| SC 13G/A | — | 0000315066-24-002630 | Nov 12, 2024 | — |
| SC 13G/A | — | 0000932471-24-000833 | Nov 12, 2024 | — |
| SC 13G | — | 0002012383-24-004106 | Nov 8, 2024 | — |
| 4 | 4 | 0000950170-24-122340 | Nov 6, 2024 | Nov 5, 2024 |
| SC 13G | — | 0000932471-24-000240 | Nov 4, 2024 | — |
| 10-Q | 10-Q | 0000950170-24-119808 | Nov 1, 2024 | Sep 27, 2024 |
| 8-K | 8-K | 0000950170-24-119242 | Oct 31, 2024 | — |
| SC 13G | — | 0002012383-24-002212 | Oct 24, 2024 | — |
| SC 13G/A | FORM SC 13G/A | 0000950103-24-014604 | Oct 3, 2024 | — |
| 8-K | 8-K | 0000950170-24-109070 | Sep 24, 2024 | Sep 20, 2024 |
| 4 | 4 | 0000950170-24-102814 | Sep 3, 2024 | Aug 30, 2024 |
| 8-K | 8-K | 0000950170-24-095424 | Aug 12, 2024 | Aug 8, 2024 |
| 4 | 4 | 0000950170-24-094326 | Aug 9, 2024 | Aug 7, 2024 |
| 4 | 4 | 0000950170-24-094768 | Aug 9, 2024 | Aug 8, 2024 |
| 4 | 4 | 0000950170-24-094770 | Aug 9, 2024 | Aug 8, 2024 |
| 4 | 4 | 0000950170-24-094769 | Aug 9, 2024 | Aug 8, 2024 |
| 4 | 4 | 0000950170-24-094771 | Aug 9, 2024 | Aug 8, 2024 |
| 4 | 4 | 0000950170-24-094772 | Aug 9, 2024 | Aug 8, 2024 |