Institutional Ownership
Magnite Inc
CUSIP 55955D100COMMGNIQ1 2026
13D / 13G Filings
25
Schedule 13D/13G on record
Beneficial Filers
8
Distinct reporting persons
Largest Stake
12.2%
Max % of class reported
Institutional Holders
288
13F filers (latest quarter)
Beneficial Owners — Schedule 13D / 13G
25 filings · latest Feb 12, 2026
| # | Filed | Reporting Person | Form | % of Class | Shares | Filing |
|---|---|---|---|---|---|---|
| 1 | Feb 12, 2026 | Capital Research Global Investors | 13G | 9.0% | 12.92M | SEC |
| 2 | Feb 10, 2026 | Wellington Management Group LLP | 13G | 6.0% | 8.63M | SEC |
| 3 | Dec 5, 2025 | Fmr LLC | 13G/A | 5.7% | 8.12M | SEC |
| 4 | Nov 13, 2025 | Capital Research Global Investors | 13G/A | 4.9% | 6.98M | SEC |
| 5 | Oct 6, 2025 | The Vanguard Group | 13G/A | 10.3% | 14.65M | SEC |
| 6 | Jul 8, 2025 | Fmr LLC | 13G/A | 12.2% | 17.22M | SEC |
| 7 | May 13, 2025 | Capital Research Global Investors | 13G/A | 9.0% | 12.92M | SEC |
| 8 | May 12, 2025 | Fmr LLC | 13G | 6.8% | 9.72M | SEC |
| 9 | Feb 13, 2025 | Capital Research Global Investors | 13G | 5.5% | 7.73M | SEC |
| 10 | Nov 12, 2024 | Fmr LLC | 13G/A | 2.7% | — | SEC |
15 more beneficial-ownership filings on Premium
See the full Schedule 13D/13G history for Magnite Inc.
Unlock full historyTop Institutional Holders (13F)
Largest reported positions · latest quarter
| # | Fund | Shares | Value |
|---|---|---|---|
| 1 | Blackrock, Inc. | 11.66M | $138.49M |
| 2 | Wellington Management Group LLP | 9.19M | $109.19M |
| 3 | Capital Research Global Investors | 5.02M | $59.64M |
| 4 | Boston Partners | 4.72M | $56.08M |
| 5 | American Century Companies Inc | 4.63M | $54.97M |
| 6 | Fmr LLC | 4.51M | $53.55M |
| 7 | Dimensional Fund Advisors LP | 3.98M | $47.32M |
| 8 | Nuveen, LLC | 3.59M | $42.65M |
| 9 | Geode Capital Management, LLC | 3.55M | $42.23M |
| 10 | Nine Ten Capital Management LLC | 3.48M | $41.36M |