System1, Inc. — All Filings
590 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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10-Q/A
144
25-NSE
3
3/A
4
4/A
424B3
424B4
424B5
425
8-A12B
8-K
8-K/A
CERT
CORRESP
DEF 14A
DEFA14A
DRS
DRS/A
DRSLTR
EFFECT
NT 10-K
NT 10-K/A
NT 10-Q
POS AM
PRE 14A
PREM14A
PRER14A
S-1
S-1/A
S-1MEF
S-3
S-4
S-4/A
S-8
SC 13D
SC 13D/A
SC 13G
SC 13G/A
SCHEDULE 13D
SCHEDULE 13G/A
UPLOAD
| Form | Description | Accession Number | Filed | Period |
|---|---|---|---|---|
| 8-K | 8-K | 0001805833-26-000015 | Mar 11, 2026 | — |
| 10-K | 10-K | 0001805833-26-000014 | Mar 11, 2026 | Dec 31, 2025 |
| 8-K | 8-K | 0001805833-26-000012 | Mar 11, 2026 | — |
| 4 | FORM 4 | 0001628280-26-004229 | Jan 29, 2026 | Jan 28, 2026 |
| 4 | FORM 4 | 0001628280-26-004228 | Jan 29, 2026 | Jan 28, 2026 |
| 4 | FORM 4 | 0001628280-26-004227 | Jan 29, 2026 | Jan 28, 2026 |
| 4 | FORM 4 | 0001628280-26-004226 | Jan 29, 2026 | Jan 28, 2026 |
| 4 | FORM 4 | 0001628280-26-002464 | Jan 16, 2026 | Jan 15, 2026 |
| 4 | FORM 4 | 0001628280-26-002463 | Jan 16, 2026 | Jan 15, 2026 |
| 4 | FORM 4 | 0001628280-26-002462 | Jan 16, 2026 | Jan 15, 2026 |
| 4 | FORM 4 | 0001628280-26-002461 | Jan 16, 2026 | Jan 15, 2026 |
| 8-K | 8-K | 0001805833-26-000003 | Jan 9, 2026 | — |
| 8-K | 8-K | 0001805833-25-000020 | Dec 12, 2025 | Dec 8, 2025 |
| 8-K | 8-K | 0001805833-25-000018 | Dec 3, 2025 | Dec 1, 2025 |
| SCHEDULE 13G/A | — | 0001704720-25-000222 | Dec 2, 2025 | — |
| 8-K | 8-K | 0001805833-25-000016 | Nov 5, 2025 | — |
| 10-Q | 10-Q | 0001805833-25-000015 | Nov 5, 2025 | Sep 30, 2025 |
| 8-K | 8-K | 0001805833-25-000013 | Nov 5, 2025 | — |
| 4 | FORM 4 | 0001628280-25-047630 | Oct 30, 2025 | Oct 28, 2025 |
| 4 | FORM 4 | 0001628280-25-047629 | Oct 30, 2025 | Oct 28, 2025 |
| 4 | FORM 4 | 0001628280-25-047628 | Oct 30, 2025 | Oct 28, 2025 |
| 4 | FORM 4 | 0001628280-25-047627 | Oct 30, 2025 | Oct 28, 2025 |
| 4 | FORM 4 | 0001628280-25-045433 | Oct 17, 2025 | Oct 15, 2025 |
| 4 | FORM 4 | 0001628280-25-045432 | Oct 17, 2025 | Oct 15, 2025 |
| 4 | FORM 4 | 0001628280-25-045431 | Oct 17, 2025 | Oct 15, 2025 |
| 4 | FORM 4 | 0001628280-25-045430 | Oct 17, 2025 | Oct 15, 2025 |
| 4 | FORM 4 | 0002012590-25-000006 | Aug 26, 2025 | Aug 22, 2025 |
| 4 | FORM 4 | 0002012590-25-000004 | Aug 21, 2025 | Aug 19, 2025 |
| 8-K | 8-K | 0001805833-25-000009 | Aug 7, 2025 | — |
| 10-Q | 10-Q | 0001805833-25-000008 | Aug 7, 2025 | Jun 30, 2025 |
| 8-K | 8-K | 0001805833-25-000006 | Aug 7, 2025 | — |
| 4 | FORM 4 | 0001628280-25-038025 | Aug 5, 2025 | Jul 31, 2025 |
| 4 | FORM 4 | 0001628280-25-038024 | Aug 5, 2025 | Jul 31, 2025 |
| 4 | FORM 4 | 0001628280-25-037564 | Aug 4, 2025 | Jul 31, 2025 |
| 4 | FORM 4 | 0001628280-25-037563 | Aug 4, 2025 | Jul 31, 2025 |
| 4 | FORM 4 | 0001845026-25-000002 | Aug 4, 2025 | Jul 31, 2025 |
| 4 | FORM 4 | 0001915482-25-000006 | Aug 4, 2025 | Jul 31, 2025 |
| 4 | FORM 4 | 0001907126-25-000002 | Aug 4, 2025 | Jul 31, 2025 |
| 4 | FORM 4 | 0002018813-25-000002 | Jul 31, 2025 | Jul 29, 2025 |
| 4 | FORM 4 | 0001906862-25-000015 | Jul 30, 2025 | Jul 28, 2025 |
| 4 | FORM 4 | 0001906904-25-000012 | Jul 30, 2025 | Jul 28, 2025 |
| 4 | FORM 4 | 0001907093-25-000012 | Jul 30, 2025 | Jul 28, 2025 |
| 4 | FORM 4 | 0001624457-25-000012 | Jul 30, 2025 | Jul 28, 2025 |
| 4 | FORM 4 | 0001906862-25-000013 | Jul 17, 2025 | Jul 15, 2025 |
| 4 | FORM 4 | 0001906904-25-000010 | Jul 17, 2025 | Jul 15, 2025 |
| 4 | FORM 4 | 0001907093-25-000010 | Jul 17, 2025 | Jul 15, 2025 |
| 4 | FORM 4 | 0001624457-25-000010 | Jul 17, 2025 | Jul 15, 2025 |
| EFFECT | — | 9999999995-25-002194 | Jul 8, 2025 | — |
| CORRESP | — | 0001628280-25-034224 | Jul 3, 2025 | — |
| UPLOAD | — | 0000000000-25-007060 | Jul 3, 2025 | — |