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 25 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 |
|---|---|---|---|---|---|
| Clough Capital Partners L P | 94,652 | $2.06M | 0.18% | −90,625−48.9% | Reduced |
| Comerica Bank | 98,157 | $2.14M | 0.01% | −43,460−30.7% | Reduced |
| Toroso Investments, LLC | 99,086 | $2.16M | 0.01% | +5,918+6.4% | Added |
| Zweig-DiMenna Associates LLC | 99,900 | $2.18M | 0.17% | −11,600−10.4% | Reduced |
| P.A.W. Capital Corp | 100,000 | $2.18M | 3.95% | −30,000−23.1% | Reduced |
| Cerity Partners LLC | 100,553 | $2.19M | 0.00% | −1,188−1.2% | Reduced |
| LPL Financial LLC | 109,867 | $2.39M | 0.00% | +3,320+3.1% | Added |
| Group One Trading, L.P. | 110,315 | $2.40M | 0.07% | +3,226+3.0% | Added |
| Prelude Capital Management, LLC | 113,649 | $2.48M | 0.19% | −39,902−26.0% | Reduced |
| Simplex Trading, LLC | 117,045 | $2.55M | 0.06% | +64,211+121.5% | Added |
| Franklin Resources Inc | 117,484 | $2.56M | 0.00% | +9,033+8.3% | Added |
| Nippon Life Global Investors Americas, Inc. | 120,350 | $2.62M | 0.11% | +120,350 | New |
| Panoramic Capital, LLC | 126,080 | $2.75M | 1.74% | +56,080+80.1% | Added |
| Deutsche Bank AG | 129,651 | $2.82M | 0.00% | −12,150−8.6% | Reduced |
| Parallax Volatility Advisers, L.P. | 130,683 | $2.85M | 0.08% | −45,130−25.7% | Reduced |
| Wedge Capital Management L L P | 130,779 | $2.85M | 0.05% | +23,145+21.5% | Added |
| Perkins Capital Management Inc | 131,275 | $2.86M | 2.52% | −3,850−2.8% | Reduced |
| California State Teachers Retirement System | 132,581 | $2.89M | 0.00% | +60.0% | Added |
| Campbell & CO Investment Adviser LLC | 132,785 | $2.89M | 0.22% | +132,785 | New |
| Rice Hall James & Associates, LLC | 133,218 | $2.90M | 0.16% | −21,679−14.0% | Reduced |
| Wells Fargo & Company | 137,721 | $3.00M | 0.00% | +26,324+23.6% | Added |
| Hilton Capital Management, LLC | 141,058 | $3.07M | 0.25% | +7,492+5.6% | Added |
| Alliancebernstein L.P. | 144,645 | $3.15M | 0.00% | +7,700+5.6% | Added |
| Bridgewater Associates, LP | 145,671 | $3.17M | 0.01% | +145,671 | New |
| EFG Asset Management (North America) Corp. | 150,511 | $3.28M | 0.42% | −50,491−25.1% | Reduced |
| Ameriprise Financial Inc | 150,495 | $3.28M | 0.00% | +44,231+41.6% | Added |
| Legal & General Group Plc | 160,437 | $3.49M | 0.00% | +5,212+3.4% | Added |
| Advantage Alpha Capital Partners LP | 160,447 | $3.49M | 1.05% | −182,128−53.2% | Reduced |
| Principal Financial Group Inc | 162,440 | $3.54M | 0.00% | +55,425+51.8% | Added |
| Citigroup Inc | 163,343 | $3.56M | 0.00% | −75,149−31.5% | Reduced |
| Squarepoint Ops LLC | 166,469 | $3.63M | 0.01% | +166,469 | New |
| Citadel Advisors LLC | 169,561 | $3.69M | 0.00% | −665,541−79.7% | Reduced |
| Envestnet Asset Management Inc | 170,152 | $3.71M | 0.00% | −71,786−29.7% | Reduced |
| Harbor Capital Advisors, Inc. | 172,171 | $3.75M | 0.29% | −461,976−72.8% | Reduced |
| Voya Investment Management LLC | 188,092 | $4.10M | 0.00% | −41,536−18.1% | Reduced |
| Lisanti Capital Growth, LLC | 189,168 | $4.12M | 1.01% | −178,847−48.6% | Reduced |
| Castleark Management LLC | 193,185 | $4.21M | 0.12% | +50,035+35.0% | Added |
| Moody National Bank Trust Division | 197,792 | $4.31M | 0.36% | +36,460+22.6% | Added |
| AYAL Capital Advisors Ltd | 199,000 | $4.33M | 2.50% | +33,063+19.9% | Added |
| State of Wisconsin Investment Board | 206,905 | $4.51M | 0.01% | +20,911+11.2% | Added |
| Qube Research & Technologies Ltd | 208,938 | $4.55M | 0.01% | +208,938 | New |
| Barclays PLC | 210,655 | $4.59M | 0.00% | −63,538−23.2% | Reduced |
| D. E. Shaw & Co., Inc. | 211,433 | $4.61M | 0.00% | +179,486+561.8% | Added |
| Commonwealth Equity Services, LLC | 212,318 | $4.62M | 0.01% | +17,338+8.9% | Added |
| Polar Asset Management Partners Inc. | 213,866 | $4.66M | 0.09% | +213,866 | New |
| Rhumbline Advisers | 217,307 | $4.73M | 0.00% | −6,119−2.7% | Reduced |
| EAM Investors, LLC | 241,943 | $5.18M | 0.59% | +24,465+11.2% | Added |
| Bank of Montreal | 241,332 | $5.26M | 0.00% | −1,014−0.4% | Reduced |
| Dilation Capital Management LP | 245,900 | $5.36M | 2.65% | −88,825−26.5% | Reduced |
| Kopion Asset Management, LLC | 246,601 | $5.37M | 3.48% | −176,577−41.7% | Reduced |
| Alta Park Capital, LP | 255,698 | $5.57M | 0.56% | −157,904−38.2% | Reduced |
| Invesco Ltd. | 258,732 | $5.64M | 0.00% | +28,439+12.3% | Added |
| Cannell Capital LLC | 265,152 | $5.78M | 1.52% | +138,574+109.5% | Added |
| S Squared Technology, LLC | 267,862 | $5.83M | 2.22% | −38,759−12.6% | Reduced |
| Swiss National Bank | 272,600 | $5.94M | 0.00% | 00.0% | Unchanged |
| Two Sigma Investments, LP | 300,431 | $6.54M | 0.01% | +62,605+26.3% | Added |
| First Trust Advisors LP | 304,887 | $6.64M | 0.00% | +235,388+338.7% | Added |
| Point72 Asset Management, L.P. | 305,316 | $6.65M | 0.01% | +305,316 | New |
| Russell Investments Group, Ltd. | 309,604 | $6.74M | 0.01% | −12,596−3.9% | Reduced |
| Raymond James Financial Inc | 310,653 | $6.77M | 0.00% | −82,948−21.1% | Reduced |
| UBS Asset Management Americas Inc | 321,187 | $7.00M | 0.00% | −222,090−40.9% | Reduced |
| 1492 Capital Management LLC | 336,666 | $7.33M | 2.97% | +14,745+4.6% | Added |
| Manatuck Hill Partners, LLC | 349,291 | $7.61M | 2.59% | +40,800+13.2% | Added |
| Voloridge Investment Management, LLC | 375,212 | $8.17M | 0.03% | +375,212 | New |
| Picton Mahoney Asset Management | 387,332 | $8.44M | 0.11% | +259,482+203.0% | Added |
| Grizzlyrock Capital, LLC | 390,906 | $8.51M | 6.61% | −583,417−59.9% | Reduced |
| Dana Investment Advisors, Inc. | 409,121 | $8.91M | 0.26% | −176,794−30.2% | Reduced |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 413,150 | $9.00M | 0.01% | −201,167−32.7% | Reduced |
| UBS Group AG | 425,277 | $9.26M | 0.00% | −1,307,941−75.5% | Reduced |
| Norwood Investment Partners, LP | 430,000 | $9.37M | 8.05% | −32,000−6.9% | Reduced |
| Nordea Investment Management AB | 447,340 | $9.69M | 0.01% | +116,423+35.2% | Added |
| Tudor Investment Corp Et Al | 449,109 | $9.78M | 0.06% | +449,109 | New |
| King Luther Capital Management Corp | 449,960 | $9.80M | 0.04% | −110,826−19.8% | Reduced |
| New York State Common Retirement Fund | 474,457 | $10.3M | 0.01% | −18,768−3.8% | Reduced |
| Oberweis Asset Management Inc | 514,000 | $11.2M | 0.43% | 00.0% | Unchanged |
| Silvercrest Asset Management Group LLC | 524,897 | $11.4M | 0.08% | −279,350−34.7% | Reduced |
| First Eagle Investment Management, LLC | 575,443 | $12.5M | 0.02% | −42,676−6.9% | Reduced |
| Susquehanna International Group, LLP | 612,985 | $13.4M | 0.02% | +248,453+68.2% | Added |
| Meros Investment Management, LP | 613,828 | $13.4M | 5.71% | −88,314−12.6% | Reduced |
| 325 Capital LLC | 650,061 | $14.2M | 4.30% | +650,061 | New |
| Millennium Management LLC | 676,349 | $14.7M | 0.01% | +676,349 | New |
| Penn Capital Management Co Inc | 713,933 | $15.6M | 1.20% | −33,901−4.5% | Reduced |
| Bank of America Corp | 796,244 | $17.3M | 0.00% | +382,819+92.6% | Added |
| Apis Capital Advisors, LLC | 839,399 | $18.3M | 4.04% | −208,601−19.9% | Reduced |
| T. Rowe Price Investment Management, Inc. | 890,918 | $19.4M | 0.01% | +890,918 | New |
| Stephens Investment Management Group LLC | 964,543 | $21.0M | 0.27% | −385,553−28.6% | Reduced |
| Royce & Associates LP | 976,151 | $21.3M | 0.21% | −101,755−9.4% | Reduced |
| J. Goldman & Co LP | 1,028,698 | $22.4M | 0.85% | +425,015+70.4% | Added |
| Jane Street Group, LLC | 1,090,623 | $23.8M | 0.03% | +806,333+283.6% | Added |
| Frontier Capital Management Co LLC | 1,093,233 | $23.8M | 0.21% | −700,597−39.1% | Reduced |
| Maestria Partners LLC | 1,141,171 | $24.9M | 7.86% | −293,146−20.4% | Reduced |
| JPMorgan Chase & Co | 1,209,413 | $26.3M | 0.00% | +271,325+28.9% | Added |
| Kennedy Capital Management, Inc. | 1,213,613 | $26.4M | 0.58% | +344,466+39.6% | Added |
| Charles Schwab Investment Management Inc | 1,217,848 | $26.5M | 0.00% | +78,307+6.9% | Added |
| Bank of New York Mellon Corp | 1,261,893 | $27.5M | 0.00% | −536,347−29.8% | Reduced |
| Nomura Asset Management Co Ltd | 1,339,765 | $29.2M | 0.08% | −400,976−23.0% | Reduced |
| Northern Trust Corp | 1,365,056 | $29.7M | 0.00% | +25,185+1.9% | Added |
| Driehaus Capital Management LLC | 1,516,296 | $33.0M | 0.24% | −1,265,882−45.5% | Reduced |
| Blue Grotto Capital, LLC | 1,548,796 | $33.7M | 3.91% | +1,263,992+443.8% | Added |
| Morgan Stanley | 2,046,237 | $44.6M | 0.00% | +875,682+74.8% | Added |