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 2025
Institutional positions in Magnite, Inc. as of Jun 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
- 287
- −4 vs. Q1 2025
- Shares held
- 147.0M
- +14.1M (+10.6%) vs. Q1 2025
- Total value
- $3.54B
- +$2.03B (+133.7%) vs. Q1 2025
- New holders
- 53
- 99 more added
- Sold out
- 57
- 99 more reduced
2 institutions that held it in Q1 2025 haven't filed for Q2 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 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, Q2 2025
Shares, value and share of portfolio for each institution holding Magnite, Inc.; share changes are against Q1 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Castleark Management LLC | 143,150 | $3.45M | 0.10% | +143,150 | New |
| Prelude Capital Management, LLC | 153,551 | $3.70M | 0.36% | +138,573+925.2% | Added |
| Rice Hall James & Associates, LLC | 154,897 | $3.74M | 0.20% | −1,942−1.2% | Reduced |
| Legal & General Group Plc | 155,225 | $3.74M | 0.00% | +12,259+8.6% | Added |
| Moody National Bank Trust Division | 161,332 | $3.89M | 0.36% | +57,142+54.8% | Added |
| AYAL Capital Advisors Ltd | 165,937 | $4.00M | 2.18% | +165,937 | New |
| Parallax Volatility Advisers, L.P. | 175,813 | $4.24M | 0.17% | −93,170−34.6% | Reduced |
| Clough Capital Partners L P | 185,277 | $4.47M | 0.45% | +185,277 | New |
| State of Wisconsin Investment Board | 185,994 | $4.49M | 0.01% | −47,687−20.4% | Reduced |
| Commonwealth Equity Services, LLC | 194,980 | $4.70M | 0.01% | +28,974+17.5% | Added |
| EFG Asset Management (North America) Corp. | 201,002 | $4.85M | 0.68% | −35,503−15.0% | Reduced |
| EAM Investors, LLC | 217,478 | $5.25M | 0.79% | +217,478 | New |
| Rhumbline Advisers | 223,426 | $5.39M | 0.00% | +30,924+16.1% | Added |
| Connor, Clark & Lunn Investment Management Ltd. | 225,281 | $5.43M | 0.02% | −44,005−16.3% | Reduced |
| Voya Investment Management LLC | 229,628 | $5.54M | 0.01% | +19,494+9.3% | Added |
| Invesco Ltd. | 230,293 | $5.55M | 0.00% | +21,302+10.2% | Added |
| Two Sigma Investments, LP | 237,826 | $5.74M | 0.01% | +184,274+344.1% | Added |
| Citigroup Inc | 238,492 | $5.75M | 0.00% | +84,924+55.3% | Added |
| Envestnet Asset Management Inc | 241,938 | $5.84M | 0.00% | +21,394+9.7% | Added |
| Bank of Montreal | 242,346 | $5.85M | 0.00% | +1,401+0.6% | Added |
| Roubaix Capital, LLC | 260,735 | $6.29M | 3.02% | +260,735 | New |
| Swiss National Bank | 272,600 | $6.58M | 0.00% | 00.0% | Unchanged |
| Barclays PLC | 274,193 | $6.61M | 0.00% | +102,899+60.1% | Added |
| Jane Street Group, LLC | 284,290 | $6.86M | 0.01% | +17,554+6.6% | Added |
| Blue Grotto Capital, LLC | 284,804 | $6.87M | 0.83% | +284,804 | New |
| S Squared Technology, LLC | 306,621 | $7.40M | 3.12% | −45,000−12.8% | Reduced |
| Manatuck Hill Partners, LLC | 308,491 | $7.44M | 2.80% | +196,000+174.2% | Added |
| 1492 Capital Management LLC | 321,921 | $7.76M | 3.58% | −3,881−1.2% | Reduced |
| Russell Investments Group, Ltd. | 322,200 | $7.77M | 0.01% | −125,885−28.1% | Reduced |
| Nordea Investment Management AB | 330,917 | $7.94M | 0.01% | −571,854−63.3% | Reduced |
| Dilation Capital Management LP | 334,725 | $8.07M | 4.30% | +334,725 | New |
| Advantage Alpha Capital Partners LP | 342,575 | $8.26M | 2.23% | −84,587−19.8% | Reduced |
| Susquehanna International Group, LLP | 364,532 | $8.79M | 0.01% | −37,265−9.3% | Reduced |
| Lisanti Capital Growth, LLC | 368,015 | $8.88M | 2.46% | +224,160+155.8% | Added |
| Ardsley Advisory Partners LP | 370,000 | $8.92M | 1.46% | +214,000+137.2% | Added |
| Raymond James Financial Inc | 393,601 | $9.49M | 0.00% | +31,825+8.8% | Added |
| Bank of America Corp | 413,425 | $9.97M | 0.00% | −500,006−54.7% | Reduced |
| Alta Park Capital, LP | 413,602 | $9.98M | 1.23% | +413,602 | New |
| Kopion Asset Management, LLC | 423,178 | $10.2M | 6.88% | −175,822−29.4% | Reduced |
| Norwood Investment Partners, LP | 462,000 | $11.1M | 8.35% | +462,000 | New |
| New York State Common Retirement Fund | 493,225 | $11.9M | 0.02% | −162,916−24.8% | Reduced |
| Oberweis Asset Management Inc | 514,000 | $12.4M | 0.54% | +308,300+149.9% | Added |
| UBS Asset Management Americas Inc | 543,277 | $13.1M | 0.00% | +138,560+34.2% | Added |
| King Luther Capital Management Corp | 560,786 | $13.5M | 0.06% | −22,000−3.8% | Reduced |
| Dana Investment Advisors, Inc. | 585,915 | $14.1M | 0.47% | +25,594+4.6% | Added |
| Verition Fund Management LLC | 595,495 | $14.4M | 0.08% | −310,604−34.3% | Reduced |
| J. Goldman & Co LP | 603,683 | $14.6M | 0.46% | +603,683 | New |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 614,317 | $14.8M | 0.03% | +13,652+2.3% | Added |
| First Eagle Investment Management, LLC | 618,119 | $14.9M | 0.03% | +122,462+24.7% | Added |
| Harbor Capital Advisors, Inc. | 634,147 | $15.3M | 0.64% | +42,834+7.2% | Added |
| Balyasny Asset Management LLC | 699,932 | $16.9M | 0.04% | +699,932 | New |
| Meros Investment Management, LP | 702,142 | $16.9M | 8.04% | −47,296−6.3% | Reduced |
| Penn Capital Management Co Inc | 747,834 | $18.1M | 1.56% | −166,851−18.2% | Reduced |
| Pacer Advisors, Inc. | 791,819 | $19.1M | 0.05% | −310,337−28.2% | Reduced |
| Silvercrest Asset Management Group LLC | 804,247 | $19.4M | 0.13% | −4,000−0.5% | Reduced |
| Citadel Advisors LLC | 835,102 | $20.1M | 0.02% | +242,173+40.8% | Added |
| Kennedy Capital Management, Inc. | 869,147 | $21.0M | 0.50% | −54,766−5.9% | Reduced |
| JPMorgan Chase & Co | 938,088 | $22.6M | 0.00% | −50,701−5.1% | Reduced |
| Grizzlyrock Capital, LLC | 974,323 | $23.5M | 17.67% | +75,782+8.4% | Added |
| Apis Capital Advisors, LLC | 1,048,000 | $25.3M | 8.98% | +1,048,000 | New |
| Royce & Associates LP | 1,077,906 | $26.0M | 0.27% | −104,900−8.9% | Reduced |
| Charles Schwab Investment Management Inc | 1,139,541 | $27.5M | 0.00% | +121,602+11.9% | Added |
| Morgan Stanley | 1,170,555 | $28.2M | 0.00% | +294,696+33.6% | Added |
| Northern Trust Corp | 1,339,871 | $32.3M | 0.00% | −231,006−14.7% | Reduced |
| Stephens Investment Management Group LLC | 1,350,096 | $32.6M | 0.43% | +399,440+42.0% | Added |
| Maestria Partners LLC | 1,434,317 | $34.6M | 12.02% | +382,000+36.3% | Added |
| UBS Group AG | 1,733,218 | $41.8M | 0.01% | +99,276+6.1% | Added |
| Nomura Asset Management Co Ltd | 1,740,741 | $42.0M | 0.12% | −315,052−15.3% | Reduced |
| Frontier Capital Management Co LLC | 1,793,830 | $43.3M | 0.40% | +1,448,456+419.4% | Added |
| Bank of New York Mellon Corp | 1,798,240 | $43.4M | 0.01% | +1,078+0.1% | Added |
| Schonfeld Strategic Advisors LLC | 1,900,598 | $45.8M | 0.35% | +1,900,598 | New |
| Goldman Sachs Group Inc | 1,915,400 | $46.2M | 0.01% | +988,600+106.7% | Added |
| Driehaus Capital Management LLC | 2,782,178 | $67.1M | 0.54% | +372,739+15.5% | Added |
| Nine Ten Capital Management LLC | 2,858,583 | $68.9M | 20.51% | +123,753+4.5% | Added |
| State Street Corp | 3,053,607 | $73.7M | 0.00% | +150,547+5.2% | Added |
| Geode Capital Management, LLC | 3,216,842 | $77.6M | 0.01% | +183,414+6.0% | Added |
| Nuveen, LLC | 3,251,092 | $78.4M | 0.02% | −345,411−9.6% | Reduced |
| Edenbrook Capital, LLC | 3,609,972 | $87.1M | 38.39% | −406,700−10.1% | Reduced |
| Granahan Investment Management Inc | 3,642,786 | $87.9M | 3.58% | +992,796+37.5% | Added |
| American Century Companies Inc | 4,829,197 | $116.5M | 0.06% | +1,868,188+63.1% | Added |
| Dimensional Fund Advisors LP | 4,901,833 | $118.2M | 0.03% | −379,818−7.2% | Reduced |
| Wellington Management Group LLP | 5,447,837 | $131.4M | 0.02% | −455,434−7.7% | Reduced |
| Boston Partners | 5,574,604 | $133.0M | 0.15% | +298,248+5.7% | Added |
| BlackRock, Inc. | 10,698,044 | $258.0M | 0.00% | +910,204+9.3% | Added |
| Capital Research Global Investors | 12,920,070 | $311.6M | 0.06% | 00.0% | Unchanged |
| Vanguard Group Inc | 13,562,285 | $327.1M | 0.01% | −181,236−1.3% | Reduced |
| FMR LLC | 17,185,939 | $414.5M | 0.02% | +7,501,741+77.5% | Added |
| Qube Research & Technologies Ltd | 0 | $0 | 0.00% | −1,038,131−100.0% | Sold out |
| Intrinsic Edge Capital Management LLC | 0 | $0 | 0.00% | −733,044−100.0% | Sold out |
| Granite Investment Partners, LLC | 0 | $0 | 0.00% | −720,873−100.0% | Sold out |
| Millennium Management LLC | 0 | $0 | 0.00% | −434,479−100.0% | Sold out |
| Armistice Capital, LLC | 0 | $0 | 0.00% | −389,000−100.0% | Sold out |
| Susquehanna Fundamental Investments, LLC | 0 | $0 | 0.00% | −180,463−100.0% | Sold out |
| XTX Topco Ltd | 0 | $0 | 0.00% | −135,118−100.0% | Sold out |
| Squarepoint Ops LLC | 0 | $0 | 0.00% | −123,786−100.0% | Sold out |
| Dynamic Technology Lab Private Ltd | 0 | $0 | 0.00% | −120,258−100.0% | Sold out |
| State of New Jersey Common Pension Fund D | 0 | $0 | 0.00% | −109,356−100.0% | Sold out |
| PEAK6 LLC | 0 | $0 | 0.00% | −103,167−100.0% | Sold out |
| Riverwater Partners LLC | 0 | $0 | 0.00% | −84,179−100.0% | Sold out |
| Atlas Merchant Capital LLC | 0 | $0 | 0.00% | −82,500−100.0% | Sold out |