| 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 | |||
| Capital Research Global Investors | 9% | +82% | $207,887,450 | +$95,533,217 | 12,920,289 | +85% | Capital Research Global Investors | 31 Dec 2025 |
| WELLINGTON MANAGEMENT GROUP LLP | 6% | $138,844,439 | 8,629,238 | Wellington Management Group LLP | 31 Dec 2025 | |||
| FMR LLC | 5.7% | -54% | $115,617,607 | -$129,484,064 | 8,124,920 | -53% | FMR LLC | 28 Nov 2025 |
As of 31 Dec 2025, 296 institutional investors reported holding 136,284,587 shares of MAGNITE, INC. - Common Stock (MGNI). This represents 95% of the company’s total 143,558,767 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 |
|---|---|---|---|---|---|
| VANGUARD GROUP INC | 10% | 14,802,630 | +1% | 0% | $240,246,684 |
| Capital Research Global Investors | 9% | 12,920,289 | +85% | 0.04% | $209,696,290 |
| BlackRock, Inc. | 8.1% | 11,593,249 | +1.6% | 0% | $188,158,440 |
| WELLINGTON MANAGEMENT GROUP LLP | 6% | 8,629,238 | +68% | 0.02% | $140,052,533 |
| FMR LLC | 4.7% | 6,701,174 | -61% | 0.01% | $108,760,051 |
| AMERICAN CENTURY COMPANIES INC | 3.7% | 5,286,928 | +15% | 0.04% | $85,806,867 |
| Boston Partners | 2.9% | 4,108,893 | -7.6% | 0.07% | $66,596,374 |
| DIMENSIONAL FUND ADVISORS LP | 2.5% | 3,615,820 | +1.4% | 0.01% | $58,687,197 |
| Nuveen, LLC | 2.5% | 3,531,108 | +14% | 0.02% | $57,309,883 |
| GEODE CAPITAL MANAGEMENT, LLC | 2.4% | 3,434,062 | +1% | 0% | $55,744,057 |
| STATE STREET CORP | 2.2% | 3,141,991 | +0.49% | 0% | $50,994,514 |
| Granahan Investment Management, LLC | 2.2% | 3,115,930 | -20% | 2.2% | $50,571,544 |
| Nine Ten Capital Management LLC | 2.1% | 3,003,583 | +5.1% | 15% | $48,748,000 |
| Edenbrook Capital, LLC | 1.9% | 2,788,036 | +32% | 19% | $45,249,825 |
| Ophir Asset Management Pty Ltd | 1.7% | 2,384,187 | 4.3% | $38,695,355 | |
| 325 CAPITAL LLC | 1.4% | 2,005,387 | +208% | 11% | $32,547,431 |
| MORGAN STANLEY | 1.3% | 1,862,538 | -9% | 0% | $30,228,995 |
| GOLDMAN SACHS GROUP INC | 1.2% | 1,761,037 | -26% | 0% | $28,581,630 |
| Blue Grotto Capital, LLC | 1.1% | 1,628,782 | +5.2% | 2.7% | $26,435,132 |
| No Street GP LP | 1% | 1,475,000 | 1.6% | $23,939,250 | |
| KENNEDY CAPITAL MANAGEMENT LLC | 1% | 1,435,970 | +18% | 0.49% | $23,305,793 |
| Maestria Partners LLC | 0.95% | 1,363,505 | +19% | 6.5% | $22,129,686 |
| NORTHERN TRUST CORP | 0.89% | 1,272,068 | -6.8% | 0% | $20,645,664 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 0.83% | 1,187,501 | -2.5% | 0% | $19,273,141 |
| Bank of New York Mellon Corp | 0.82% | 1,183,318 | -6.2% | 0% | $19,205,245 |
| Period | Reported Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2025 Q4 | 136,284,587 | $2,212,004,216 | -$65,223,960 | $16.23 | 296 |
| 2025 Q3 | 138,012,684 | $3,003,860,929 | -$207,225,719 | $21.78 | 313 |
| 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 |