# System1, Inc.: filings

SST · NYSE · CIK 1805833 · [Technology](/sectors/technology.md) · fiscal year ends Dec 31

Pages: [Overview](/companies/sst.md) · [Financials](/companies/sst/financials.md) · [Filings](/companies/sst/filings.md) · [Insiders](/companies/sst/insiders.md)

## Reports and events: 177 filings

Newest first, by EDGAR acceptance time (Eastern). Filter with ?form= one of: `periodic`, `8-K`, `10-K`, `10-Q`, `4`, `proxy`, `13dg`, `all`, or any form this company filed (4 265, 8-K 91, 3 30, SC 13D/A 24, 10-Q 19, UPLOAD 19, 424B3 18, CORRESP 17, 425 10, 4/A 10, SC 13D 10, SC 13G 8, EFFECT 7, 10-K 6, 10-K/A 6, S-8 6, SC 13G/A 6, DEFA14A 5, NT 10-Q 5, 8-K/A 4, DEF 14A 4, S-1/A 4, 10-Q/A 3, SCHEDULE 13D/A 3, 25-NSE 2, 8-A12B 2, DRS 2, DRS/A 2, DRSLTR 2, NT 10-K 2, POS AM 2, PRE 14A 2, S-1 2, S-3 2, S-4/A 2, 144 1, 3/A 1, 424B4 1, 424B5 1, CERT 1, NT 10-K/A 1, PREM14A 1, PRER14A 1, S-1MEF 1, S-4 1, SCHEDULE 13D 1, SCHEDULE 13G/A 1).

| Filed | Accepted | Form | What it is | Accession |
| --- | --- | --- | --- | --- |
| 2026-08-05 | 16:59 ET | [8-K](/filings/0001805833-26-000051.md) | 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001805833-26-000051 |
| 2026-08-05 | 16:21 ET | [10-Q](/filings/0001805833-26-000050.md) | Quarterly report, period 2026-06-30 | 0001805833-26-000050 |
| 2026-08-05 | 16:05 ET | [8-K](/filings/0001805833-26-000049.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001805833-26-000049 |
| 2026-07-24 | 09:07 ET | [8-K](/filings/0001805833-26-000044.md) | 3.03 Change to security holders’ rights; 5.02 Departure or appointment of officers or directors; 5.03 Amendment to articles or bylaws; 5.07 Shareholder vote results; 8.01 Other events; 9.01 Financial statements and exhibits | 0001805833-26-000044 |
| 2026-06-22 | 17:17 ET | [DEF 14A](/filings/0001805833-26-000040.md) | Proxy statement, period 2026-07-22 | 0001805833-26-000040 |
| 2026-06-01 | 09:00 ET | [8-K](/filings/0001805833-26-000030.md) | 1.01 Entry into a material agreement; 2.03 New direct financial obligation; 3.02 Unregistered sale of equity; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001805833-26-000030 |
| 2026-05-12 | 16:27 ET | [8-K](/filings/0001805833-26-000027.md) | 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001805833-26-000027 |
| 2026-05-12 | 16:16 ET | [10-Q](/filings/0001805833-26-000026.md) | Quarterly report, period 2026-03-31 | 0001805833-26-000026 |
| 2026-05-12 | 16:05 ET | [8-K](/filings/0001805833-26-000025.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001805833-26-000025 |
| 2026-04-30 | 16:10 ET | [10-K/A](/filings/0001805833-26-000018.md) | Annual report, amended, period 2025-12-31 | 0001805833-26-000018 |
| 2026-03-11 | 16:35 ET | [8-K](/filings/0001805833-26-000015.md) | 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001805833-26-000015 |
| 2026-03-11 | 16:21 ET | [10-K](/filings/0001805833-26-000014.md) | Annual report, period 2025-12-31 | 0001805833-26-000014 |
| 2026-03-11 | 16:05 ET | [8-K](/filings/0001805833-26-000012.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001805833-26-000012 |
| 2026-01-09 | 16:03 ET | [8-K](/filings/0001805833-26-000003.md) | 5.02 Departure or appointment of officers or directors; 9.01 Financial statements and exhibits | 0001805833-26-000003 |
| 2025-12-12 | 16:05 ET | [8-K](/filings/0001805833-25-000020.md) | 3.01 Delisting notice; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001805833-25-000020 |
| 2025-12-03 | 16:18 ET | [8-K](/filings/0001805833-25-000018.md) | 5.02 Departure or appointment of officers or directors; 8.01 Other events; 9.01 Financial statements and exhibits | 0001805833-25-000018 |
| 2025-12-02 | 22:18 ET | [SCHEDULE 13D/A](/filings/0001704720-25-000218.md) | Ownership report, active investor, amended | 0001704720-25-000218 |
| 2025-11-12 | 00:26 ET | [SCHEDULE 13D/A](/filings/0001704720-25-000178.md) | Ownership report, active investor, amended | 0001704720-25-000178 |
| 2025-11-05 | 17:00 ET | [8-K](/filings/0001805833-25-000016.md) | 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001805833-25-000016 |
| 2025-11-05 | 16:20 ET | [10-Q](/filings/0001805833-25-000015.md) | Quarterly report, period 2025-09-30 | 0001805833-25-000015 |
| 2025-11-05 | 16:06 ET | [8-K](/filings/0001805833-25-000013.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001805833-25-000013 |
| 2025-08-07 | 16:37 ET | [8-K](/filings/0001805833-25-000009.md) | 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001805833-25-000009 |
| 2025-08-07 | 16:27 ET | [10-Q](/filings/0001805833-25-000008.md) | Quarterly report, period 2025-06-30 | 0001805833-25-000008 |
| 2025-08-07 | 16:06 ET | [8-K](/filings/0001805833-25-000006.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001805833-25-000006 |
| 2025-06-11 | 16:05 ET | [8-K](/filings/0001628280-25-030708.md) | 3.03 Change to security holders’ rights; 5.03 Amendment to articles or bylaws; 8.01 Other events; 9.01 Financial statements and exhibits | 0001628280-25-030708 |
| 2025-06-10 | 16:05 ET | [8-K](/filings/0001628280-25-030451.md) | 5.02 Departure or appointment of officers or directors; 5.07 Shareholder vote results; 8.01 Other events; 9.01 Financial statements and exhibits | 0001628280-25-030451 |
| 2025-05-23 | 17:37 ET | [8-K](/filings/0001628280-25-027355.md) | 5.02 Departure or appointment of officers or directors; 9.01 Financial statements and exhibits | 0001628280-25-027355 |
| 2025-05-19 | 16:07 ET | [DEF 14A](/filings/0001628280-25-026505.md) | Proxy statement, period 2025-06-10 | 0001628280-25-026505 |
| 2025-05-06 | 16:50 ET | [8-K](/filings/0001628280-25-022742.md) | 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001628280-25-022742 |
| 2025-05-06 | 16:27 ET | [10-Q](/filings/0001628280-25-022712.md) | Quarterly report, period 2025-03-31 | 0001628280-25-022712 |
| 2025-05-06 | 16:05 ET | [8-K](/filings/0001628280-25-022669.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001628280-25-022669 |
| 2025-05-05 | 19:40 ET | [SCHEDULE 13D](/filings/0001628280-25-022351.md) | Ownership report, active investor | 0001628280-25-022351 |
| 2025-04-29 | 16:07 ET | [8-K](/filings/0001628280-25-020664.md) | 3.02 Unregistered sale of equity; 9.01 Financial statements and exhibits | 0001628280-25-020664 |
| 2025-04-25 | 16:55 ET | [10-K/A](/filings/0001628280-25-020027.md) | Annual report, amended, period 2024-12-31 | 0001628280-25-020027 |
| 2025-04-18 | 14:59 ET | [8-K](/filings/0001628280-25-018356.md) | 5.02 Departure or appointment of officers or directors | 0001628280-25-018356 |
| 2025-04-07 | 16:24 ET | [8-K](/filings/0001628280-25-016948.md) | 3.01 Delisting notice; 9.01 Financial statements and exhibits | 0001628280-25-016948 |
| 2025-03-25 | 23:30 ET | [SCHEDULE 13D/A](/filings/0001704720-25-000032.md) | Ownership report, active investor, amended | 0001704720-25-000032 |
| 2025-03-10 | 16:35 ET | [8-K](/filings/0001628280-25-011713.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001628280-25-011713 |
| 2025-03-10 | 16:18 ET | [10-K](/filings/0001628280-25-011690.md) | Annual report, period 2024-12-31 | 0001628280-25-011690 |
| 2025-03-10 | 16:04 ET | [8-K](/filings/0001628280-25-011636.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001628280-25-011636 |
| 2025-01-10 | 16:30 ET | [8-K](/filings/0001628280-25-001158.md) | 3.01 Delisting notice; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001628280-25-001158 |
| 2024-11-07 | 16:38 ET | [8-K](/filings/0001628280-24-046353.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001628280-24-046353 |
| 2024-11-07 | 16:22 ET | [10-Q](/filings/0001628280-24-046309.md) | Quarterly report, period 2024-09-30 | 0001628280-24-046309 |
| 2024-11-07 | 16:03 ET | [8-K](/filings/0001628280-24-046232.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001628280-24-046232 |
| 2024-09-27 | 16:15 ET | [10-K/A](/filings/0001628280-24-041475.md) | Annual report, amended, period 2023-12-31 | 0001628280-24-041475 |
| 2024-08-08 | 16:42 ET | [8-K](/filings/0001628280-24-036198.md) | 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001628280-24-036198 |
| 2024-08-08 | 16:41 ET | [10-Q](/filings/0001628280-24-036195.md) | Quarterly report, period 2024-06-30 | 0001628280-24-036195 |
| 2024-08-08 | 16:06 ET | [8-K](/filings/0001628280-24-036120.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001628280-24-036120 |
| 2024-06-25 | 12:48 ET | [SC 13D/A](/filings/0001628280-24-029960.md) | Ownership report, active investor, amended | 0001628280-24-029960 |
| 2024-06-26 | 11:13 ET | [SC 13D/A](/filings/0001628280-24-029997.md) | Ownership report, active investor, amended | 0001628280-24-029997 |

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Source: SEC EDGAR, the company’s filing index. Last ingested by Listed: Oct 24, 2026, 15:07 ET. No prices; not investment advice.