| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| VANGUARD GROUP INC | 10% | $307,011,816 | 14,654,432 | The Vanguard Group | 30 Sep 2025 | |||
| FMR LLC | 5.7% | -54% | $115,617,607 | -$129,484,064 | 8,124,920 | -53% | FMR LLC | 28 Nov 2025 |
| Capital Research Global Investors | 4.9% | -46% | $152,086,713 | -$129,312,412 | 6,982,861 | -46% | Capital Research Global Investors | 30 Sep 2025 |
As of 30 Sep 2025, 311 institutional investors reported holding 138,012,582 shares of MAGNITE, INC. - COMMON STOCK (MGNI). This represents 97% of the company’s total 142,542,451 outstanding shares.
The largest institutional shareholders of MAGNITE, INC. - COMMON STOCK (MGNI) together control 73% of the company’s outstanding shares — a level of ownership often associated with strong institutional conviction and long‑term capital commitment.
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| FMR LLC | 12% | 17,141,014 | -0.26% | 0.02% | $373,331,284 |
| VANGUARD GROUP INC | 10% | 14,654,432 | +8.1% | 0% | $319,173,529 |
| BlackRock, Inc. | 8% | 11,413,155 | +6.7% | 0% | $248,578,526 |
| Capital Research Global Investors | 4.9% | 6,982,861 | -46% | 0.03% | $152,086,713 |
| WELLINGTON MANAGEMENT GROUP LLP | 3.6% | 5,144,549 | -5.6% | 0.02% | $112,048,278 |
| AMERICAN CENTURY COMPANIES INC | 3.2% | 4,594,070 | -4.9% | 0.05% | $100,058,887 |
| Boston Partners | 3.1% | 4,449,004 | -20% | 0.1% | $95,207,440 |
| Granahan Investment Management, LLC | 2.7% | 3,873,179 | +6.3% | 3.5% | $84,357,839 |
| DIMENSIONAL FUND ADVISORS LP | 2.5% | 3,567,254 | -27% | 0.02% | $77,700,093 |
| GEODE CAPITAL MANAGEMENT, LLC | 2.4% | 3,399,093 | +5.7% | 0% | $74,042,436 |
| STATE STREET CORP | 2.2% | 3,126,790 | +2.4% | 0% | $68,101,486 |
| Nuveen, LLC | 2.2% | 3,092,036 | -4.9% | 0.02% | $67,344,545 |
| Nine Ten Capital Management LLC | 2% | 2,858,583 | 0% | 16% | $62,260,000 |
| PRICE T ROWE ASSOCIATES INC /MD/ | 1.8% | 2,547,505 | +2066% | 0.01% | $55,486,000 |
| GOLDMAN SACHS GROUP INC | 1.7% | 2,385,439 | +25% | 0.01% | $51,954,861 |
| Edenbrook Capital, LLC | 1.5% | 2,110,370 | -42% | 23% | $45,963,859 |
| MORGAN STANLEY | 1.4% | 2,046,237 | +75% | 0% | $44,567,069 |
| Blue Grotto Capital, LLC | 1.1% | 1,548,796 | +444% | 3.9% | $33,732,776 |
| Driehaus Capital Management LLC | 1.1% | 1,516,296 | -45% | 0.24% | $33,024,927 |
| NORTHERN TRUST CORP | 0.96% | 1,365,056 | +1.9% | 0% | $29,730,919 |
| NOMURA ASSET MANAGEMENT CO LTD | 0.94% | 1,339,765 | -23% | 0.08% | $29,180,081 |
| Bank of New York Mellon Corp | 0.89% | 1,261,893 | -30% | 0% | $27,484,031 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 0.85% | 1,217,848 | +6.9% | 0% | $26,524,729 |
| KENNEDY CAPITAL MANAGEMENT LLC | 0.85% | 1,213,613 | +40% | 0.58% | $26,432,491 |
| JPMORGAN CHASE & CO | 0.85% | 1,209,413 | +29% | 0% | $26,341,015 |
| Period | Reported Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2025 Q4 | 1,819,468 | $29,637,097 | +$3,315,521 | $16.23 | 32 |
| 2025 Q3 | 138,012,582 | $3,003,858,707 | -$207,225,850 | $21.78 | 311 |
| 2025 Q2 | 146,964,373 | $3,543,069,968 | +$406,190,715 | $24.12 | 285 |
| 2025 Q1 | 132,644,878 | $1,513,348,970 | +$97,506,469 | $11.41 | 290 |
| 2024 Q4 | 123,449,236 | $1,965,951,862 | +$42,368,020 | $15.92 | 283 |
| 2024 Q3 | 119,561,299 | $1,654,115,115 | +$216,068,704 | $13.85 | 279 |
| 2024 Q2 | 104,326,333 | $1,386,459,925 | +$39,957,238 | $13.29 | 266 |
| 2024 Q1 | 102,110,845 | $1,097,564,621 | -$5,361,702 | $10.75 | 230 |
| 2023 Q4 | 102,653,022 | $958,824,603 | -$4,019,427 | $9.34 | 215 |
| 2023 Q3 | 103,476,989 | $780,247,255 | -$17,837,826 | $7.54 | 208 |
| 2023 Q2 | 101,048,317 | $1,380,031,436 | +$74,884,448 | $13.65 | 217 |
| 2023 Q1 | 96,353,092 | $892,115,344 | +$22,211,875 | $9.26 | 217 |
| 2022 Q4 | 93,373,687 | $988,829,597 | -$97,935,020 | $10.59 | 228 |
| 2022 Q3 | 103,432,133 | $679,628,120 | +$93,907,627 | $6.57 | 201 |
| 2022 Q2 | 87,980,237 | $781,403,356 | -$17,395,213 | $8.88 | 214 |
| 2022 Q1 | 88,698,180 | $1,171,861,875 | -$35,248,615 | $13.21 | 215 |
| 2021 Q4 | 89,542,528 | $1,566,754,035 | -$140,798,799 | $17.50 | 238 |
| 2021 Q3 | 90,069,072 | $2,521,283,357 | +$118,150,307 | $28.00 | 270 |
| 2021 Q2 | 85,375,930 | $2,889,381,654 | -$89,507,112 | $33.84 | 264 |
| 2021 Q1 | 86,041,634 | $3,579,979,338 | +$418,396,545 | $41.61 | 271 |
| 2020 Q4 | 76,786,392 | $2,357,551,419 | +$83,965,902 | $30.71 | 235 |
| 2020 Q3 | 83,209,025 | $577,796,330 | +$477,632,041 | $6.94 | 168 |
| 2020 Q2 | 14,428,175 | $96,233,000 | +$96,233,000 | $6.67 | 10 |
| 2020 Q1 | 203 | $7,000 | $34.48 | 1 | |
| 2019 Q4 | 203 | $7,000 | $34.48 | 1 | |
| 2019 Q3 | 203 | $7,000 | $34.48 | 1 | |
| 2019 Q2 | 203 | $7,000 | $34.48 | 1 | |
| 2019 Q1 | 203 | $7,000 | $34.48 | 1 |