MAGNITE, INC. - MGNI
All tracked SEC files for this issuer. Showing up to 200 latest records.
Need parsed ownership details (13D/13G with shares/percent)?
Open ownership details
Form 4 = insider transactions report. Form 144 = notice of proposed sale (not a completed trade confirmation).
Files summary
Total files loaded: 52
Latest filed: May 21, 2026
| Form | Count |
|---|---|
| 4 | 34 |
| 144 | 6 |
| SCHEDULE 13G/A | 4 |
| 8-K | 4 |
| SCHEDULE 13G | 4 |
Latest files
| Filed | Form | Report period | Accession | SEC |
|---|---|---|---|---|
| May 21, 2026 | 4 | May 19, 2026 | 0001603808-26-000002 | View |
| May 19, 2026 | 4 | May 15, 2026 | 0001100612-26-000004 | View |
| May 19, 2026 | 4 | May 15, 2026 | 0001966857-26-000005 | View |
| May 19, 2026 | 4 | May 15, 2026 | 0001778484-26-000003 | View |
| May 19, 2026 | 4 | May 15, 2026 | 0001807986-26-000004 | View |
| May 19, 2026 | 4 | May 15, 2026 | 0001523288-26-000005 | View |
| May 19, 2026 | 4 | May 15, 2026 | 0001700262-26-000004 | View |
| May 19, 2026 | 4 | May 15, 2026 | 0001865116-26-000004 | View |
| May 19, 2026 | 144 | — | 0001950047-26-004749 | View |
| May 18, 2026 | 144 | — | 0001950047-26-004655 | View |
| May 14, 2026 | SCHEDULE 13G/A | — | 0001422848-26-000060 | View |
| May 06, 2026 | 8-K | May 06, 2026 | 0001595974-26-000023 | View |
| May 06, 2026 | SCHEDULE 13G/A | — | 0000315066-26-001272 | View |
| Apr 30, 2026 | SCHEDULE 13G | — | 0002100119-26-000678 | View |
| Apr 29, 2026 | SCHEDULE 13G | — | 0002100121-26-000493 | View |
| Apr 20, 2026 | 8-K | Apr 20, 2026 | 0001595974-26-000016 | View |
| Apr 10, 2026 | 8-K | Apr 07, 2026 | 0001595974-26-000013 | View |
| Mar 27, 2026 | SCHEDULE 13G/A | — | 0000102909-26-001721 | View |
| Feb 25, 2026 | 8-K | Feb 25, 2026 | 0001595974-26-000010 | View |
| Feb 18, 2026 | 4 | Feb 15, 2026 | 0001865116-26-000003 | View |
| Feb 18, 2026 | 4 | Feb 15, 2026 | 0001807986-26-000003 | View |
| Feb 18, 2026 | 4 | Feb 15, 2026 | 0001523288-26-000004 | View |
| Feb 18, 2026 | 4 | Feb 15, 2026 | 0001700262-26-000003 | View |
| Feb 18, 2026 | 4 | Feb 15, 2026 | 0001778484-26-000002 | View |
| Feb 18, 2026 | 4 | Feb 15, 2026 | 0001100612-26-000003 | View |
| Feb 18, 2026 | 4 | Feb 15, 2026 | 0001966857-26-000004 | View |
| Feb 18, 2026 | 144 | — | 0001950047-26-001454 | View |
| Feb 18, 2026 | 4 | Feb 15, 2026 | 0001725125-26-000003 | View |
| Feb 12, 2026 | SCHEDULE 13G | — | 0001422848-26-000020 | View |
| Feb 10, 2026 | SCHEDULE 13G | — | 0000902219-26-000074 | View |
| Jan 12, 2026 | 4 | Jan 09, 2026 | 0001100612-26-000002 | View |
| Jan 12, 2026 | 4 | Jan 09, 2026 | 0001700262-26-000002 | View |
| Jan 12, 2026 | 4 | Jan 09, 2026 | 0001865116-26-000002 | View |
| Jan 12, 2026 | 4 | Jan 09, 2026 | 0001807986-26-000002 | View |
| Jan 12, 2026 | 4 | Jan 09, 2026 | 0001966857-26-000003 | View |
| Jan 12, 2026 | 4 | Jan 09, 2026 | 0001725125-26-000002 | View |
| Jan 12, 2026 | 4 | Jan 09, 2026 | 0001523288-26-000002 | View |
| Jan 05, 2026 | 4 | Jan 01, 2026 | 0001778484-26-000001 | View |
| Jan 05, 2026 | 4 | Jan 01, 2026 | 0001523288-26-000001 | View |
| Jan 05, 2026 | 4 | Jan 01, 2026 | 0001865116-26-000001 | View |
| Jan 05, 2026 | 4 | Jan 01, 2026 | 0001700262-26-000001 | View |
| Jan 05, 2026 | 4 | Jan 01, 2026 | 0001725125-26-000001 | View |
| Jan 05, 2026 | 4 | Jan 01, 2026 | 0001966857-26-000001 | View |
| Jan 05, 2026 | 4 | Jan 01, 2026 | 0001807986-26-000001 | View |
| Jan 05, 2026 | 4 | Jan 01, 2026 | 0001100612-26-000001 | View |
| Dec 19, 2025 | 4 | Dec 17, 2025 | 0001725125-25-000006 | View |
| Dec 17, 2025 | 144 | — | 0001950047-25-010440 | View |
| Dec 05, 2025 | SCHEDULE 13G/A | — | 0000315066-25-002953 | View |
| Nov 26, 2025 | 4 | Nov 24, 2025 | 0001865116-25-000004 | View |
| Nov 24, 2025 | 144 | — | 0001950047-25-009240 | View |
| Nov 21, 2025 | 4 | Nov 21, 2025 | 0001603808-25-000005 | View |
| Nov 21, 2025 | 144 | — | 0001950047-25-009223 | View |