Magnite, Inc.
MGNI- Exchange
- Nasdaq
- Industry
- Services-Computer Programming, Data Processing, Etc.
- SEC CIK
- 0001595974
In the last 90 days, Magnite, Inc. insiders filed 0 open-market purchases and 24 sales; 311 institutions reported holding it in 13F filings for Q2 2026, worth $2.69B in total; no superinvestor holds it.
13F holders, Q4 2025
Institutional positions in Magnite, Inc. as of Dec 31, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 304
- +1 vs. Q3 2025
- Shares held
- 136.7M
- −1.02M (−0.7%) vs. Q3 2025
- Total value
- $2.22B
- −$779.0M (−26.0%) vs. Q3 2025
- New holders
- 56
- 122 more added
- Sold out
- 55
- 93 more reduced
13 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting MGNI on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 311 | $2.69B |
| Q1 2026 | 297 | $1.56B |
| Q4 2025 | 304 | $2.22B |
| Q3 2025 | 316 | $3.00B |
| Q2 2025 | 287 | $3.54B |
| Q1 2025 | 293 | $1.52B |
| Q4 2024 | 286 | $1.97B |
| Q3 2024 | 280 | $1.65B |
| Q2 2024 | 269 | $1.39B |
| Q1 2024 | 232 | $1.10B |
| Q4 2023 | 217 | $959.0M |
| Q3 2023 | 215 | $780.6M |
| Q2 2023 | 224 | $1.39B |
| Q1 2023 | 224 | $892.4M |
| Q4 2022 | 231 | $988.1M |
| Q3 2022 | 218 | $679.0M |
| Q2 2022 | 231 | $781.6M |
| Q1 2022 | 231 | $1.17B |
| Q4 2021 | 248 | $1.57B |
| Q3 2021 | 279 | $2.52B |
| Q2 2021 | 268 | $2.89B |
| Q1 2021 | 280 | $3.59B |
Institutions, Q4 2025
Shares, value and share of portfolio for each institution holding Magnite, Inc.; share changes are against Q3 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| AQR Capital Management LLC | 97,535 | $1.58M | 0.00% | +49,464+102.9% | Added |
| Cerity Partners LLC | 100,788 | $1.64M | 0.00% | +235+0.2% | Added |
| Franklin Resources Inc | 108,970 | $1.77M | 0.00% | −8,514−7.2% | Reduced |
| Calamos Advisors LLC | 113,457 | $1.84M | 0.01% | +61,672+119.1% | Added |
| LPL Financial LLC | 116,450 | $1.89M | 0.00% | +6,583+6.0% | Added |
| Boothbay Fund Management, LLC | 117,842 | $1.91M | 0.05% | +58,965+100.1% | Added |
| Perkins Capital Management Inc | 121,775 | $1.98M | 1.57% | −9,500−7.2% | Reduced |
| Toroso Investments, LLC | 123,908 | $2.01M | 0.01% | +24,822+25.1% | Added |
| Alliancebernstein L.P. | 125,345 | $2.03M | 0.00% | −19,300−13.3% | Reduced |
| Deutsche Bank AG | 128,468 | $2.09M | 0.00% | −1,183−0.9% | Reduced |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 129,787 | $2.11M | 0.00% | −283,363−68.6% | Reduced |
| IMC-Chicago, LLC | 133,096 | $2.16M | 0.04% | +133,096 | New |
| California State Teachers Retirement System | 136,524 | $2.22M | 0.00% | +3,943+3.0% | Added |
| P.A.W. Capital Corp | 140,000 | $2.27M | 5.16% | +40,000+40.0% | Added |
| Bridgewater Associates, LP | 145,187 | $2.36M | 0.01% | −484−0.3% | Reduced |
| Legal & General Group Plc | 148,841 | $2.42M | 0.00% | −11,596−7.2% | Reduced |
| Victory Capital Management Inc | 151,084 | $2.45M | 0.00% | +104,783+226.3% | Added |
| Prelude Capital Management, LLC | 152,200 | $2.47M | 0.18% | +38,551+33.9% | Added |
| Envestnet Asset Management Inc | 163,954 | $2.66M | 0.00% | −6,198−3.6% | Reduced |
| CenterBook Partners LP | 172,546 | $2.80M | 0.14% | +99,760+137.1% | Added |
| Federated Hermes, Inc. | 172,947 | $2.81M | 0.00% | +149,847+648.7% | Added |
| Hilton Capital Management, LLC | 180,473 | $2.93M | 0.22% | +39,415+27.9% | Added |
| Rhumbline Advisers | 183,945 | $2.99M | 0.00% | −33,362−15.4% | Reduced |
| Wedge Capital Management L L P | 189,903 | $3.08M | 0.06% | +59,124+45.2% | Added |
| Wells Fargo & Company | 193,619 | $3.14M | 0.00% | +55,898+40.6% | Added |
| Rice Hall James & Associates, LLC | 198,828 | $3.23M | 0.18% | +65,610+49.3% | Added |
| First Trust Advisors LP | 199,872 | $3.24M | 0.00% | −105,015−34.4% | Reduced |
| AYAL Capital Advisors Ltd | 200,000 | $3.25M | 1.78% | +1,000+0.5% | Added |
| Qube Research & Technologies Ltd | 202,936 | $3.29M | 0.00% | −6,002−2.9% | Reduced |
| SEI Investments Co | 211,537 | $3.43M | 0.00% | +136,554+182.1% | Added |
| Harbor Capital Advisors, Inc. | 214,251 | $3.48M | 0.27% | +42,080+24.4% | Added |
| State of Wisconsin Investment Board | 219,559 | $3.56M | 0.01% | +12,654+6.1% | Added |
| Voya Investment Management LLC | 220,440 | $3.58M | 0.00% | +32,348+17.2% | Added |
| Senvest Management, LLC | 224,100 | $3.64M | 0.11% | +224,100 | New |
| Principal Financial Group Inc | 237,220 | $3.85M | 0.00% | +74,780+46.0% | Added |
| Invesco Ltd. | 243,565 | $3.95M | 0.00% | −15,167−5.9% | Reduced |
| Commonwealth Equity Services, LLC | 254,318 | $4.13M | 0.01% | +42,000+19.8% | Added |
| Dana Investment Advisors, Inc. | 254,935 | $4.14M | 0.12% | −154,186−37.7% | Reduced |
| Simplex Trading, LLC | 263,362 | $4.27M | 0.12% | +146,317+125.0% | Added |
| Bank of Montreal | 276,273 | $4.48M | 0.00% | +34,941+14.5% | Added |
| Swiss National Bank | 280,700 | $4.56M | 0.00% | +8,100+3.0% | Added |
| First Eagle Investment Management, LLC | 296,443 | $4.81M | 0.01% | −279,000−48.5% | Reduced |
| Raymond James Financial Inc | 297,716 | $4.83M | 0.00% | −12,937−4.2% | Reduced |
| Susquehanna International Group, LLP | 307,607 | $4.99M | 0.01% | −305,378−49.8% | Reduced |
| Man Group plc | 311,536 | $5.06M | 0.01% | +311,536 | New |
| UBS Asset Management Americas Inc | 328,260 | $5.33M | 0.00% | +7,073+2.2% | Added |
| Norwood Investment Partners, LP | 330,000 | $5.36M | 6.03% | −100,000−23.3% | Reduced |
| 1492 Capital Management LLC | 341,398 | $5.54M | 2.12% | +4,732+1.4% | Added |
| Manatuck Hill Partners, LLC | 350,000 | $5.68M | 1.99% | +709+0.2% | Added |
| Two Sigma Investments, LP | 363,412 | $5.90M | 0.01% | +62,981+21.0% | Added |
| Barclays PLC | 366,390 | $5.95M | 0.00% | +155,735+73.9% | Added |
| Jane Street Group, LLC | 380,253 | $6.17M | 0.01% | −710,370−65.1% | Reduced |
| Picton Mahoney Asset Management | 388,131 | $6.30M | 0.07% | +799+0.2% | Added |
| S Squared Technology, LLC | 402,862 | $6.54M | 2.53% | +135,000+50.4% | Added |
| UBS Group AG | 404,014 | $6.56M | 0.00% | −21,263−5.0% | Reduced |
| Russell Investments Group, Ltd. | 451,021 | $7.32M | 0.01% | +141,417+45.7% | Added |
| Nordea Investment Management AB | 445,016 | $7.34M | 0.01% | −2,324−0.5% | Reduced |
| New York State Common Retirement Fund | 474,457 | $7.70M | 0.01% | 00.0% | Unchanged |
| JPMorgan Chase & Co | 506,393 | $8.22M | 0.00% | −703,020−58.1% | Reduced |
| Algert Global LLC | 509,860 | $8.28M | 0.13% | +462,590+978.6% | Added |
| King Luther Capital Management Corp | 515,635 | $8.37M | 0.03% | +65,675+14.6% | Added |
| Citadel Advisors LLC | 544,318 | $8.83M | 0.01% | +374,757+221.0% | Added |
| Grizzlyrock Capital, LLC | 571,906 | $9.28M | 6.95% | +181,000+46.3% | Added |
| Pillsbury Lake Capital LLC | 583,644 | $9.47M | 3.86% | +583,644 | New |
| Apis Capital Advisors, LLC | 604,000 | $9.80M | 1.71% | −235,399−28.0% | Reduced |
| Kopion Asset Management, LLC | 614,459 | $9.97M | 7.13% | +367,858+149.2% | Added |
| Nomura Asset Management Co Ltd | 622,700 | $10.1M | 0.03% | −717,065−53.5% | Reduced |
| Oberweis Asset Management Inc | 635,800 | $10.3M | 0.38% | +121,800+23.7% | Added |
| Bank of America Corp | 651,953 | $10.6M | 0.00% | −144,291−18.1% | Reduced |
| Silvercrest Asset Management Group LLC | 685,259 | $11.1M | 0.08% | +160,362+30.6% | Added |
| Penn Capital Management Co Inc | 694,766 | $11.3M | 0.90% | −19,167−2.7% | Reduced |
| Price T Rowe Associates Inc | 711,495 | $11.5M | 0.00% | −1,836,010−72.1% | Reduced |
| Schonfeld Strategic Advisors LLC | 779,681 | $12.7M | 0.06% | +779,681 | New |
| J. Goldman & Co LP | 782,837 | $12.7M | 0.49% | −245,861−23.9% | Reduced |
| Meros Investment Management, LP | 825,595 | $13.4M | 5.31% | +211,767+34.5% | Added |
| Balyasny Asset Management LLC | 873,208 | $14.2M | 0.03% | +873,208 | New |
| Frontier Capital Management Co LLC | 944,701 | $15.3M | 0.16% | −148,532−13.6% | Reduced |
| Stephens Investment Management Group LLC | 1,128,578 | $18.3M | 0.24% | +164,035+17.0% | Added |
| Royce & Associates LP | 1,166,469 | $18.9M | 0.19% | +190,318+19.5% | Added |
| Bank of New York Mellon Corp | 1,183,318 | $19.2M | 0.00% | −78,575−6.2% | Reduced |
| Charles Schwab Investment Management Inc | 1,187,501 | $19.3M | 0.00% | −30,347−2.5% | Reduced |
| Northern Trust Corp | 1,272,068 | $20.6M | 0.00% | −92,988−6.8% | Reduced |
| Maestria Partners LLC | 1,363,505 | $22.1M | 6.48% | +222,334+19.5% | Added |
| Kennedy Capital Management, Inc. | 1,435,970 | $23.3M | 0.49% | +222,357+18.3% | Added |
| No Street GP LP | 1,475,000 | $23.9M | 1.61% | +1,475,000 | New |
| Blue Grotto Capital, LLC | 1,628,782 | $26.4M | 2.72% | +79,986+5.2% | Added |
| Goldman Sachs Group Inc | 1,761,037 | $28.6M | 0.00% | −624,402−26.2% | Reduced |
| Morgan Stanley | 1,862,538 | $30.2M | 0.00% | −183,699−9.0% | Reduced |
| 325 Capital LLC | 2,005,387 | $32.5M | 11.40% | +1,355,326+208.5% | Added |
| Ophir Asset Management Pty Ltd | 2,384,187 | $38.7M | 4.34% | +2,384,187 | New |
| Edenbrook Capital, LLC | 2,788,036 | $45.2M | 19.10% | +677,666+32.1% | Added |
| Nine Ten Capital Management LLC | 3,003,583 | $48.7M | 15.43% | +145,000+5.1% | Added |
| Granahan Investment Management Inc | 3,115,930 | $50.6M | 2.17% | −757,249−19.6% | Reduced |
| State Street Corp | 3,141,991 | $51.0M | 0.00% | +15,201+0.5% | Added |
| Geode Capital Management, LLC | 3,434,062 | $55.7M | 0.00% | +34,969+1.0% | Added |
| Nuveen, LLC | 3,531,108 | $57.3M | 0.02% | +439,072+14.2% | Added |
| Dimensional Fund Advisors LP | 3,615,820 | $58.7M | 0.01% | +48,566+1.4% | Added |
| Boston Partners | 4,108,893 | $66.6M | 0.07% | −340,111−7.6% | Reduced |
| American Century Companies Inc | 5,286,928 | $85.8M | 0.04% | +692,858+15.1% | Added |
| FMR LLC | 6,701,174 | $108.8M | 0.01% | −10,439,840−60.9% | Reduced |