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, Q3 2025
Institutional positions in Magnite, Inc. as of Sep 30, 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
- 316
- +31 vs. Q2 2025
- Shares held
- 138.0M
- −8.85M (−6.0%) vs. Q2 2025
- Total value
- $3.00B
- −$536.4M (−15.2%) vs. Q2 2025
- New holders
- 71
- 83 more added
- Sold out
- 40
- 124 more reduced
2 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 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, Q3 2025
Shares, value and share of portfolio for each institution holding Magnite, Inc.; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Wedge Capital Management L L P | 130,779 | $2.85M | 0.05% | +23,145+21.5% | Added |
| Parallax Volatility Advisers, L.P. | 130,683 | $2.85M | 0.08% | −45,130−25.7% | Reduced |
| Deutsche Bank AG | 129,651 | $2.82M | 0.00% | −12,150−8.6% | Reduced |
| Panoramic Capital, LLC | 126,080 | $2.75M | 1.74% | +56,080+80.1% | Added |
| Nippon Life Global Investors Americas, Inc. | 120,350 | $2.62M | 0.11% | +120,350 | New |
| Franklin Resources Inc | 117,484 | $2.56M | 0.00% | +9,033+8.3% | Added |
| Simplex Trading, LLC | 117,045 | $2.55M | 0.06% | +64,211+121.5% | Added |
| Prelude Capital Management, LLC | 113,649 | $2.48M | 0.19% | −39,902−26.0% | Reduced |
| Group One Trading, L.P. | 110,315 | $2.40M | 0.07% | +3,226+3.0% | Added |
| LPL Financial LLC | 109,867 | $2.39M | 0.00% | +3,320+3.1% | Added |
| Cerity Partners LLC | 100,553 | $2.19M | 0.00% | −1,188−1.2% | Reduced |
| P.A.W. Capital Corp | 100,000 | $2.18M | 3.95% | −30,000−23.1% | Reduced |
| Zweig-DiMenna Associates LLC | 99,900 | $2.18M | 0.17% | −11,600−10.4% | Reduced |
| Toroso Investments, LLC | 99,086 | $2.16M | 0.01% | +5,918+6.4% | Added |
| Comerica Bank | 98,157 | $2.14M | 0.01% | −43,460−30.7% | Reduced |
| Clough Capital Partners L P | 94,652 | $2.06M | 0.18% | −90,625−48.9% | Reduced |
| State of New Jersey Common Pension Fund D | 94,452 | $2.06M | 0.01% | +94,452 | New |
| Verition Fund Management LLC | 88,296 | $1.92M | 0.01% | −507,199−85.2% | Reduced |
| Stephens Inc | 83,468 | $1.82M | 0.02% | +517+0.6% | Added |
| MetLife Investment Management | 81,500 | $1.78M | 0.01% | −2,041−2.4% | Reduced |
| XTX Topco Ltd | 81,445 | $1.77M | 0.09% | +81,445 | New |
| SEI Investments Co | 74,983 | $1.63M | 0.00% | −7,133−8.7% | Reduced |
| CenterBook Partners LP | 72,786 | $1.59M | 0.08% | −19,480−21.1% | Reduced |
| Cubist Systematic Strategies, LLC | 71,251 | $1.55M | 0.02% | +71,251 | New |
| Dark Forest Capital Management LP | 69,509 | $1.51M | 0.06% | +20,205+41.0% | Added |
| Steinberganna Wealth Management | 69,024 | $1.50M | 0.71% | +69,024 | New |
| Manufacturers Life Insurance Company, The | 67,126 | $1.46M | 0.00% | −535−0.8% | Reduced |
| Mirae Asset Global ETFs Holdings Ltd. | 65,063 | $1.42M | 0.00% | −11,697−15.2% | Reduced |
| Brown Advisory Inc | 64,681 | $1.41M | 0.00% | +64,681 | New |
| Fox Run Management, L.L.C. | 63,761 | $1.39M | 0.22% | +63,761 | New |
| Advisory Services Network, LLC | 63,613 | $1.39M | 0.02% | −1,794−2.7% | Reduced |
| Ardsley Advisory Partners LP | 60,000 | $1.31M | 0.20% | −310,000−83.8% | Reduced |
| Intech Investment Management LLC | 59,204 | $1.29M | 0.01% | −14,167−19.3% | Reduced |
| Stifel Financial Corp | 59,131 | $1.29M | 0.00% | −19,668−25.0% | Reduced |
| Boothbay Fund Management, LLC | 58,877 | $1.28M | 0.03% | +14,528+32.8% | Added |
| Janus Henderson Group PLC | 58,423 | $1.27M | 0.00% | 00.0% | Unchanged |
| Gamco Investors, Inc. Et Al | 56,469 | $1.23M | 0.01% | −3,114−5.2% | Reduced |
| Advisor Group Holdings, Inc. | 47,207 | $1.20M | 0.00% | −4,064−7.9% | Reduced |
| Calamos Advisors LLC | 51,785 | $1.13M | 0.00% | −925−1.8% | Reduced |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 48,871 | $1.06M | 0.00% | 00.0% | Unchanged |
| AQR Capital Management LLC | 48,071 | $1.05M | 0.00% | +27,111+129.3% | Added |
| Algert Global LLC | 47,270 | $1.03M | 0.02% | +47,270 | New |
| Victory Capital Management Inc | 46,301 | $1.01M | 0.00% | +2,902+6.7% | Added |
| Pinnacle Associates Ltd | 45,825 | $998.1K | 0.01% | −21,195−31.6% | Reduced |
| Great West Life Assurance Co | 44,552 | $992.0K | 0.00% | +1,047+2.4% | Added |
| STRS Ohio | 43,900 | $956.1K | 0.00% | +1,700+4.0% | Added |
| RE Advisers Corp | 43,900 | $956.1K | 0.02% | +43,900 | New |
| Royal Bank of Canada | 43,690 | $951.0K | 0.00% | −3,588−7.6% | Reduced |
| HSBC Holdings PLC | 42,329 | $917.4K | 0.00% | +24,289+134.6% | Added |
| Arizona State Retirement System | 41,740 | $909.1K | 0.00% | +70+0.2% | Added |
| SG Americas Securities, LLC | 41,593 | $906.0K | 0.00% | +215+0.5% | Added |
| Jennison Associates LLC | 40,431 | $880.6K | 0.00% | +40,431 | New |
| Radcliffe Capital Management, L.P. | 40,000 | $871.2K | 0.05% | −10,000−20.0% | Reduced |
| Thrivent Financial for Lutherans | 39,646 | $863.0K | 0.00% | −63,258−61.5% | Reduced |
| Police & Firemen's Retirement System of New Jersey | 39,298 | $855.9K | 0.01% | +7,680+24.3% | Added |
| State Board of Administration of Florida Retirement System | 38,231 | $832.7K | 0.00% | 00.0% | Unchanged |
| Virtu Financial LLC | 37,311 | $813.0K | 0.05% | +37,311 | New |
| Cardinal Point Capital Management, ULC | 37,100 | $808.0K | 0.06% | −12,000−24.4% | Reduced |
| BNP Paribas Arbitrage, SA | 36,241 | $789.3K | 0.00% | +17,687+95.3% | Added |
| Legato Capital Management LLC | 35,220 | $767.1K | 0.08% | −35,260−50.0% | Reduced |
| Sierra Summit Advisors LLC | 34,632 | $754.3K | 0.11% | +34,632 | New |
| Allspring Global Investments Holdings, LLC | 34,186 | $744.6K | 0.00% | −338−1.0% | Reduced |
| Ensign Peak Advisors, Inc | 33,908 | $738.5K | 0.00% | −24,600−42.0% | Reduced |
| Cetera Investment Advisers | 33,670 | $733.3K | 0.00% | −5,493−14.0% | Reduced |
| Jain Global LLC | 32,447 | $706.7K | 0.01% | +32,447 | New |
| Fulton Bank, N.A. | 31,637 | $689.1K | 0.02% | −298−0.9% | Reduced |
| TD Asset Management Inc | 30,740 | $669.5K | 0.00% | +30,740 | New |
| Handelsbanken Fonder AB | 30,100 | $656.0K | 0.00% | 00.0% | Unchanged |
| Clear Creek Financial Management, LLC | 30,032 | $654.1K | 0.06% | +5,569+22.8% | Added |
| KLP Kapitalforvaltning AS | 29,100 | $633.8K | 0.00% | 00.0% | Unchanged |
| Bailard, Inc. | 29,079 | $633.3K | 0.01% | +29,079 | New |
| Penbrook Management LLC | 28,420 | $619.0K | 0.43% | 00.0% | Unchanged |
| Greenwood Capital Associates LLC | 26,343 | $573.8K | 0.07% | −13,832−34.4% | Reduced |
| Verdence Capital Advisors LLC | 27,647 | $555.4K | 0.03% | +1,451+5.5% | Added |
| Teachers Retirement System of the State of Kentucky | 25,201 | $549.0K | 0.00% | +25,201 | New |
| Moran Wealth Management, LLC | 25,121 | $547.1K | 0.02% | +25,121 | New |
| ProShare Advisors LLC | 23,946 | $521.5K | 0.00% | −4,772−16.6% | Reduced |
| Quantinno Capital Management LP | 23,576 | $513.5K | 0.00% | +4,065+20.8% | Added |
| Truist Financial Corp | 23,122 | $503.6K | 0.00% | −5,191−18.3% | Reduced |
| Federated Hermes, Inc. | 23,100 | $503.1K | 0.00% | +23,100 | New |
| Pitcairn Co | 22,802 | $496.6K | 0.04% | −3,513−13.3% | Reduced |
| Pictet Asset Management Holding SA | 22,641 | $493.1K | 0.00% | 00.0% | Unchanged |
| Counterpoint Mutual Funds LLC | 22,156 | $482.6K | 0.04% | +22,156 | New |
| Creative Planning | 21,893 | $476.8K | 0.00% | +10,762+96.7% | Added |
| Diametric Capital, LP | 21,622 | $470.9K | 0.17% | −11,537−34.8% | Reduced |
| Outlook Wealth Advisors, LLC | 20,266 | $441.4K | 0.11% | −208−1.0% | Reduced |
| Northwest & Ethical Investments L.P. | 19,560 | $435.8K | 0.01% | +10,860+124.8% | Added |
| Griffin Asset Management, Inc. | 19,935 | $434.2K | 0.05% | 00.0% | Unchanged |
| Teacher Retirement System of Texas | 18,391 | $400.6K | 0.00% | −3,212−14.9% | Reduced |
| Prudential Financial Inc | 18,114 | $394.5K | 0.00% | +155+0.9% | Added |
| Walleye Trading LLC | 17,280 | $376.4K | 0.01% | +17,280 | New |
| Vident Advisory, LLC | 16,621 | $362.0K | 0.00% | −1,225−6.9% | Reduced |
| Numerai GP LLC | 16,327 | $355.6K | 0.05% | +16,327 | New |
| Magnetar Financial LLC | 15,189 | $330.8K | 0.00% | +15,189 | New |
| Public Employees Retirement Association of Colorado | 14,986 | $326.0K | 0.00% | 00.0% | Unchanged |
| CIBC Bancorp USA Inc. | 14,929 | $325.2K | 0.00% | +14,929 | New |
| HighTower Advisors, LLC | 14,780 | $321.9K | 0.00% | +953+6.9% | Added |
| Woodmont Investment Counsel LLC | 14,250 | $310.4K | 0.02% | −50−0.3% | Reduced |
| Ledgewood Wealth Advisors, LLC | 14,097 | $307.0K | 0.18% | −5,698−28.8% | Reduced |
| Winthrop Advisory Group LLC | 14,080 | $306.7K | 0.03% | +80+0.6% | Added |