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 26 sales; 311 institutions reported holding it in 13F filings for Q2 2026, worth $2.69B in total; no superinvestor holds it.
13F holders, Q2 2026
Institutional positions in Magnite, Inc. as of Jun 30, 2026. 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
- 311
- +18 vs. Q1 2026
- Shares held
- 141.9M
- +10.4M (+7.9%) vs. Q1 2026
- Total value
- $2.69B
- +$1.13B (+72.2%) vs. Q1 2026
- New holders
- 55
- 116 more added
- Sold out
- 37
- 90 more reduced
4 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2026: 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, Q2 2026
Shares, value and share of portfolio for each institution holding Magnite, Inc.; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock, Inc. | 12,713,156 | $241.3M | 0.00% | +1,055,660+9.1% | Added |
| Vanguard Portfolio Management LLC | 8,197,286 | $155.6M | 0.01% | +471,081+6.1% | Added |
| FMR LLC | 7,759,426 | $147.3M | 0.01% | +3,252,007+72.1% | Added |
| Vanguard Capital Management LLC | 6,225,195 | $118.2M | 0.00% | +34,792+0.6% | Added |
| Wellington Management Group LLP | 6,044,492 | $114.7M | 0.02% | −3,146,585−34.2% | Reduced |
| Dimensional Fund Advisors LP | 5,260,132 | $99.8M | 0.02% | +1,276,458+32.0% | Added |
| Boston Partners | 5,013,835 | $95.9M | 0.09% | +293,972+6.2% | Added |
| American Century Companies Inc | 4,622,736 | $87.7M | 0.04% | −4,080−0.1% | Reduced |
| Capital Research Global Investors | 3,869,159 | $73.4M | 0.01% | −1,151,130−22.9% | Reduced |
| Nuveen, LLC | 3,794,811 | $72.0M | 0.02% | +204,786+5.7% | Added |
| Geode Capital Management, LLC | 3,789,959 | $71.9M | 0.00% | +236,169+6.6% | Added |
| Edenbrook Capital, LLC | 3,555,615 | $67.5M | 23.59% | +757,579+27.1% | Added |
| State Street Corp | 3,528,075 | $67.0M | 0.00% | +364,936+11.5% | Added |
| 325 Capital LLC | 3,412,694 | $64.8M | 15.44% | +1,407,307+70.2% | Added |
| Nine Ten Capital Management LLC | 3,261,283 | $61.9M | 19.26% | −220,000−6.3% | Reduced |
| Granahan Investment Management Inc | 3,083,211 | $58.5M | 2.09% | +529,798+20.7% | Added |
| Canada Pension Plan Investment Board | 2,995,093 | $56.8M | 0.03% | +2,949,041+6,403.7% | Added |
| Jane Street Group, LLC | 2,199,191 | $41.7M | 0.03% | +531,031+31.8% | Added |
| Park West Asset Management LLC | 2,000,000 | $38.0M | 2.59% | +1,401,620+234.2% | Added |
| Morgan Stanley | 1,991,732 | $37.8M | 0.00% | +1,064,913+114.9% | Added |
| Qube Research & Technologies Ltd | 1,955,989 | $37.1M | 0.04% | +1,294,932+195.9% | Added |
| Blue Grotto Capital, LLC | 1,706,741 | $32.4M | 2.70% | +377,959+28.4% | Added |
| Kennedy Capital Management, Inc. | 1,666,799 | $31.6M | 0.56% | −86,743−4.9% | Reduced |
| Northern Trust Corp | 1,553,412 | $29.5M | 0.00% | +230,841+17.5% | Added |
| Royce & Associates LP | 1,473,397 | $28.0M | 0.23% | +107,908+7.9% | Added |
| Goldman Sachs Group Inc | 1,466,640 | $27.8M | 0.00% | −34,212−2.3% | Reduced |
| Ophir Asset Management Pty Ltd | 1,450,061 | $27.5M | 2.26% | −667,955−31.5% | Reduced |
| Victory Capital Management Inc | 1,235,384 | $23.4M | 0.01% | −31,138−2.5% | Reduced |
| Charles Schwab Investment Management Inc | 1,203,189 | $22.8M | 0.00% | +22,758+1.9% | Added |
| Bank of America Corp | 1,181,832 | $22.4M | 0.00% | +56,636+5.0% | Added |
| Grizzlyrock Capital, LLC | 1,164,628 | $22.1M | 15.46% | −74,052−6.0% | Reduced |
| Bank of New York Mellon Corp | 1,162,198 | $22.1M | 0.00% | +23,981+2.1% | Added |
| Maestria Partners LLC | 1,158,430 | $22.0M | 7.65% | −205,075−15.0% | Reduced |
| Meros Investment Management, LP | 991,335 | $18.8M | 5.97% | −1,016−0.1% | Reduced |
| Vanguard Fiduciary Trust Co | 989,092 | $18.8M | 0.00% | −7,990−0.8% | Reduced |
| Millennium Management LLC | 764,819 | $14.5M | 0.01% | −469,638−38.0% | Reduced |
| QVT Financial LP | 747,437 | $14.2M | 0.91% | +293,527+64.7% | Added |
| UBS Group AG | 746,350 | $14.2M | 0.00% | +296,001+65.7% | Added |
| Oberweis Asset Management Inc | 735,000 | $14.0M | 0.29% | +87,400+13.5% | Added |
| Silvercrest Asset Management Group LLC | 707,749 | $13.4M | 0.09% | +91,665+14.9% | Added |
| Picton Mahoney Asset Management | 691,471 | $13.1M | 0.12% | +48,393+7.5% | Added |
| Kopion Asset Management, LLC | 674,451 | $12.8M | 8.09% | −181,453−21.2% | Reduced |
| First Eagle Investment Management, LLC | 670,788 | $12.7M | 0.02% | +220,500+49.0% | Added |
| Balyasny Asset Management LLC | 666,554 | $12.7M | 0.02% | −833,889−55.6% | Reduced |
| Ameriprise Financial Inc | 619,573 | $11.8M | 0.00% | +619,573 | New |
| S Squared Technology, LLC | 567,862 | $10.8M | 3.34% | +165,000+41.0% | Added |
| Schonfeld Strategic Advisors LLC | 562,195 | $10.7M | 0.06% | −1,042,846−65.0% | Reduced |
| Nomura Asset Management Co Ltd | 553,900 | $10.5M | 0.02% | −40,000−6.7% | Reduced |
| Bank of Montreal | 533,757 | $10.1M | 0.00% | +533,757 | New |
| King Luther Capital Management Corp | 503,581 | $9.56M | 0.04% | −27,485−5.2% | Reduced |
| Principal Financial Group Inc | 497,522 | $9.44M | 0.00% | +51,572+11.6% | Added |
| EVR Research LP | 480,000 | $9.11M | 4.50% | +480,000 | New |
| Citadel Advisors LLC | 472,865 | $8.97M | 0.01% | −580,043−55.1% | Reduced |
| Susquehanna International Group, LLP | 461,849 | $8.77M | 0.01% | +154,044+50.0% | Added |
| Manatuck Hill Partners, LLC | 450,000 | $8.54M | 2.83% | +140,000+45.2% | Added |
| Jump Financial, LLC | 428,036 | $8.12M | 0.07% | +428,036 | New |
| JPMorgan Chase & Co | 407,025 | $7.89M | 0.00% | −79,843−16.4% | Reduced |
| Nordea Investment Management AB | 386,327 | $7.38M | 0.01% | −34,681−8.2% | Reduced |
| Commonwealth Equity Services, LLC | 368,199 | $6.99M | 0.01% | +8,629+2.4% | Added |
| UBS Asset Management Americas Inc | 364,638 | $6.92M | 0.00% | +41,620+12.9% | Added |
| Marshall Wace, LLP | 341,864 | $6.49M | 0.01% | +299,396+705.0% | Added |
| Trexquant Investment LP | 333,429 | $6.33M | 0.04% | +333,429 | New |
| Alyeska Investment Group, L.P. | 326,839 | $6.20M | 0.02% | +326,839 | New |
| 1492 Capital Management LLC | 317,750 | $6.03M | 1.78% | −22,792−6.7% | Reduced |
| Harbor Capital Advisors, Inc. | 312,371 | $5.93M | 0.40% | −12,890−4.0% | Reduced |
| Raymond James Financial Inc | 309,931 | $5.88M | 0.00% | +18,216+6.2% | Added |
| Swiss National Bank | 289,700 | $5.50M | 0.00% | +5,400+1.9% | Added |
| Lisanti Capital Growth, LLC | 289,030 | $5.49M | 1.21% | −20,410−6.6% | Reduced |
| Rice Hall James & Associates, LLC | 283,919 | $5.39M | 0.26% | +91,111+47.3% | Added |
| ExodusPoint Capital Management, LP | 271,869 | $5.16M | 0.05% | +122,650+82.2% | Added |
| Norwood Investment Partners, LP | 235,000 | $4.46M | 6.16% | −50,000−17.5% | Reduced |
| Barclays PLC | 233,693 | $4.44M | 0.00% | +53,047+29.4% | Added |
| Squarepoint Ops LLC | 230,234 | $4.37M | 0.01% | −70,700−23.5% | Reduced |
| Senvest Management, LLC | 224,100 | $4.25M | 0.12% | 00.0% | Unchanged |
| Invesco Ltd. | 222,213 | $4.22M | 0.00% | −39,157−15.0% | Reduced |
| Hilton Capital Management, LLC | 219,406 | $4.16M | 0.28% | +11,252+5.4% | Added |
| Pillsbury Lake Capital LLC | 217,753 | $4.13M | 1.13% | +217,753 | New |
| Occam Crest Management LP | 195,000 | $3.85M | 2.12% | +195,000 | New |
| Cerity Partners LLC | 200,984 | $3.81M | 0.00% | +99,771+98.6% | Added |
| Price T Rowe Associates Inc | 199,445 | $3.79M | 0.00% | +34,005+20.6% | Added |
| Voya Investment Management LLC | 196,662 | $3.73M | 0.00% | −13,905−6.6% | Reduced |
| Rhumbline Advisers | 195,811 | $3.72M | 0.00% | +15,835+8.8% | Added |
| Great Lakes Advisors, LLC | 176,615 | $3.35M | 0.03% | +176,615 | New |
| AQR Capital Management LLC | 176,599 | $3.35M | 0.00% | +55,387+45.7% | Added |
| State of Wisconsin Investment Board | 172,277 | $3.27M | 0.01% | −13,193−7.1% | Reduced |
| California State Teachers Retirement System | 172,047 | $3.27M | 0.00% | −4,481−2.5% | Reduced |
| Dean Investment Associates, LLC | 167,927 | $3.19M | 0.42% | +167,927 | New |
| Legato Capital Management LLC | 166,918 | $3.17M | 0.26% | +82,128+96.9% | Added |
| Toroso Investments, LLC | 165,838 | $3.15M | 0.01% | +32,074+24.0% | Added |
| SEI Investments Co | 165,553 | $3.14M | 0.00% | −185,309−52.8% | Reduced |
| Deutsche Bank AG | 165,040 | $3.13M | 0.00% | +25,396+18.2% | Added |
| LPL Financial LLC | 163,837 | $3.11M | 0.00% | +8,393+5.4% | Added |
| Quantinno Capital Management LP | 161,782 | $3.07M | 0.00% | +33,649+26.3% | Added |
| P.A.W. Capital Corp | 160,000 | $3.04M | 2.33% | −10,000−5.9% | Reduced |
| Clough Capital Partners L P | 159,586 | $3.03M | 0.25% | +159,586 | New |
| Concentric Capital Strategies, LP | 146,698 | $2.78M | 0.17% | +146,698 | New |
| Caption Management, LLC | 145,590 | $2.76M | 0.10% | −259,463−64.1% | Reduced |
| Vanguard Asset Management, Ltd | 140,438 | $2.67M | 0.00% | +14,066+11.1% | Added |
| Algert Global LLC | 137,505 | $2.61M | 0.03% | −131,530−48.9% | Reduced |
| Wells Fargo & Company | 137,396 | $2.61M | 0.00% | +71,294+107.9% | Added |