Annexon, Inc. — All Filings
484 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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144
3
4
4/A
424B3
424B4
424B5
8-A12B
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8-K/A
ARS
CERT
CORRESP
D
DEF 14A
DEFA14A
DRS
DRS/A
DRSLTR
EFFECT
FWP
POS AM
POS EX
POSASR
S-1
S-1/A
S-1MEF
S-3
S-3ASR
S-8
SC 13D
SC 13D/A
SC 13G
SC 13G/A
SCHEDULE 13D/A
SCHEDULE 13G
SCHEDULE 13G/A
SEC STAFF LETTER
UPLOAD
| Form | Description | Accession Number | Filed | Period |
|---|---|---|---|---|
| SCHEDULE 13G/A | — | 0000102909-26-000619 | Mar 26, 2026 | — |
| 4 | — | 0001824280-26-000002 | Mar 12, 2026 | Mar 10, 2026 |
| 4 | — | 0001734424-26-000003 | Mar 4, 2026 | Mar 2, 2026 |
| 4 | — | 0001818522-26-000003 | Mar 4, 2026 | Mar 2, 2026 |
| 4 | — | 0001818525-26-000003 | Mar 4, 2026 | Mar 2, 2026 |
| 4 | — | 0001958523-26-000003 | Mar 4, 2026 | Mar 2, 2026 |
| 4 | — | 0001465994-26-000003 | Mar 4, 2026 | Mar 2, 2026 |
| 144 | — | 0001959173-26-001728 | Mar 2, 2026 | — |
| 144 | — | 0001959173-26-001717 | Mar 2, 2026 | — |
| 144 | — | 0001959173-26-001702 | Mar 2, 2026 | — |
| 144 | — | 0001959173-26-001700 | Mar 2, 2026 | — |
| 144 | — | 0001959173-26-001699 | Mar 2, 2026 | — |
| 4 | — | 0001818520-26-000001 | Feb 23, 2026 | Feb 19, 2026 |
| 4 | — | 0001734424-26-000002 | Feb 23, 2026 | Feb 19, 2026 |
| 4 | — | 0001818522-26-000002 | Feb 23, 2026 | Feb 19, 2026 |
| 4 | — | 0001958523-26-000002 | Feb 23, 2026 | Feb 19, 2026 |
| 4 | — | 0001818525-26-000002 | Feb 23, 2026 | Feb 19, 2026 |
| 4 | — | 0001465994-26-000002 | Feb 23, 2026 | Feb 19, 2026 |
| 4 | — | 0001734424-26-000001 | Feb 20, 2026 | Feb 18, 2026 |
| 4 | — | 0001465994-26-000001 | Feb 20, 2026 | Feb 18, 2026 |
| 4 | — | 0001958523-26-000001 | Feb 20, 2026 | Feb 18, 2026 |
| 4 | — | 0001818525-26-000001 | Feb 20, 2026 | Feb 18, 2026 |
| 4 | — | 0001818522-26-000001 | Feb 20, 2026 | Feb 18, 2026 |
| 144 | — | 0001959173-26-001147 | Feb 18, 2026 | — |
| 144 | — | 0001959173-26-001146 | Feb 18, 2026 | — |
| 144 | — | 0001959173-26-001142 | Feb 18, 2026 | — |
| 144 | — | 0001959173-26-001137 | Feb 18, 2026 | — |
| 144 | — | 0001959173-26-001133 | Feb 18, 2026 | — |
| 8-K | 8-K | 0001193125-26-054695 | Feb 17, 2026 | Feb 12, 2026 |
| SCHEDULE 13G/A | — | 0001104659-26-016434 | Feb 17, 2026 | — |
| SCHEDULE 13G/A | — | 0000315066-26-000364 | Feb 5, 2026 | — |
| SCHEDULE 13G/A | — | 0002012383-26-000639 | Jan 21, 2026 | — |
| 8-K | 8-K | 0001193125-26-012918 | Jan 14, 2026 | — |
| 8-K | 8-K | 0001193125-26-009740 | Jan 12, 2026 | — |
| 4 | — | 0001824280-26-000001 | Jan 2, 2026 | Dec 30, 2025 |
| 4 | — | 0001650126-25-000005 | Dec 3, 2025 | Dec 1, 2025 |
| 4 | — | 0001824280-25-000007 | Dec 3, 2025 | Dec 1, 2025 |
| 4 | — | 0001315797-25-000007 | Nov 21, 2025 | Nov 20, 2025 |
| SCHEDULE 13D/A | — | 0000895345-25-000365 | Nov 21, 2025 | — |
| 4 | — | 0001315797-25-000006 | Nov 19, 2025 | Nov 17, 2025 |
| 8-K | 8-K | 0001193125-25-283191 | Nov 14, 2025 | Nov 12, 2025 |
| 424B5 | 424B5 | 0001193125-25-280384 | Nov 13, 2025 | — |
| 424B5 | 424B5 | 0001193125-25-277669 | Nov 12, 2025 | — |
| 10-Q | 10-Q | 0001193125-25-274240 | Nov 10, 2025 | Sep 30, 2025 |
| 8-K | 8-K | 0001193125-25-274220 | Nov 10, 2025 | — |
| SCHEDULE 13G/A | — | 0000315066-25-002688 | Nov 5, 2025 | — |
| 4 | — | 0001824280-25-000006 | Oct 31, 2025 | Oct 30, 2025 |
| SCHEDULE 13G | — | 0000102909-25-000068 | Oct 30, 2025 | — |
| 4 | — | 0001824280-25-000005 | Oct 2, 2025 | Sep 30, 2025 |
| 4 | — | 0001415889-25-023679 | Sep 4, 2025 | Sep 2, 2025 |