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 2024
Institutional positions in Magnite, Inc. as of Dec 31, 2024. 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
- 286
- +14 vs. Q3 2024
- Shares held
- 123.5M
- +4.67M (+3.9%) vs. Q3 2024
- Total value
- $1.97B
- +$322.1M (+19.6%) vs. Q3 2024
- New holders
- 52
- 100 more added
- Sold out
- 38
- 94 more reduced
8 institutions that held it in Q3 2024 haven't filed for Q4 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 2024: 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 2024
Shares, value and share of portfolio for each institution holding Magnite, Inc.; share changes are against Q3 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| SG Americas Securities, LLC | 0 | $0 | 0.00% | −34,724−100.0% | Sold out |
| Cowen and Company, LLC | 0 | $0 | 0.00% | −30,800−100.0% | Sold out |
| Y-Intercept (Hong Kong) Ltd | 0 | $0 | 0.00% | −27,412−100.0% | Sold out |
| Corton Capital Inc. | 0 | $0 | 0.00% | −25,582−100.0% | Sold out |
| Fox Run Management, L.L.C. | 0 | $0 | 0.00% | −24,029−100.0% | Sold out |
| Iridian Asset Management LLC | 0 | $0 | 0.00% | −18,390−100.0% | Sold out |
| Sherbrooke Park Advisers LLC | 0 | $0 | 0.00% | −17,816−100.0% | Sold out |
| XTX Topco Ltd | 0 | $0 | 0.00% | −15,889−100.0% | Sold out |
| Twin Focus Capital Partners, LLC | 0 | $0 | 0.00% | −15,267−100.0% | Sold out |
| Parametrica Management Ltd | 0 | $0 | 0.00% | −12,775−100.0% | Sold out |
| Seelaus Asset Management LLC | 0 | $0 | 0.00% | −12,640−100.0% | Sold out |
| Capstone Investment Advisors, LLC | 0 | $0 | 0.00% | −12,011−100.0% | Sold out |
| Vicus Capital | 0 | $0 | 0.00% | −11,816−100.0% | Sold out |
| State of Wyoming | 0 | $0 | 0.00% | −11,312−100.0% | Sold out |
| Lebenthal Global Advisors, LLC | 0 | $0 | 0.00% | −10,195−100.0% | Sold out |
| Prudent Man Advisors, LLC | 0 | $0 | 0.00% | −10,186−100.0% | Sold out |
| ARS Investment Partners, LLC | 0 | $0 | 0.00% | −10,000−100.0% | Sold out |
| Quarry LP | 0 | $0 | 0.00% | −5,517−100.0% | Sold out |
| J.Safra Asset Management Corp | 0 | $0 | 0.00% | −2,700−100.0% | Sold out |
| Guinness Atkinson Asset Management Inc | 0 | $0 | 0.00% | −2,560−100.0% | Sold out |
| Capital Performance Advisors LLP | 0 | $0 | 0.00% | −1,373−100.0% | Sold out |
| Acadian Asset Management LLC | 0 | $0 | 0.00% | −1,259−100.0% | Sold out |
| SRS Capital Advisors, Inc. | 0 | $0 | 0.00% | −1,119−100.0% | Sold out |
| Toronto Dominion Bank | 0 | $0 | 0.00% | −7−100.0% | Sold out |
| Scout Investments, Inc. | – | – | – | – | Not filed |
| Millrace Asset Group, Inc. | – | – | – | – | Not filed |
| Raymond James Financial Services Advisors, Inc. | – | – | – | – | Not filed |
| ClariVest Asset Management LLC | – | – | – | – | Not filed |
| Chartwell Investment Partners, LLC | – | – | – | – | Not filed |
| Raymond James & Associates | – | – | – | – | Not filed |
| Banque Cantonale Vaudoise | – | – | – | – | Not filed |
| Halpern Financial, Inc. | – | – | – | – | Not filed |