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, Q1 2025
Institutional positions in Magnite, Inc. as of Mar 31, 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
- 293
- +10 vs. Q4 2024
- Shares held
- 132.9M
- +13.4M (+11.2%) vs. Q4 2024
- Total value
- $1.52B
- −$386.8M (−20.3%) vs. Q4 2024
- New holders
- 52
- 104 more added
- Sold out
- 42
- 97 more reduced
3 institutions that held it in Q4 2024 haven't filed for Q1 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 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, Q1 2025
Shares, value and share of portfolio for each institution holding Magnite, Inc.; share changes are against Q4 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| ExodusPoint Capital Management, LP | 0 | $0 | 0.00% | −127,645−100.0% | Sold out |
| Financial Enhancement Group LLC | 0 | $0 | 0.00% | −97,171−100.0% | Sold out |
| Engineers Gate Manager LP | 0 | $0 | 0.00% | −59,621−100.0% | Sold out |
| Jennison Associates LLC | 0 | $0 | 0.00% | −51,373−100.0% | Sold out |
| UBS Oconnor LLC | 0 | $0 | 0.00% | −50,000−100.0% | Sold out |
| Militia Capital Partners, LP | 0 | $0 | 0.00% | −50,000−100.0% | Sold out |
| D. E. Shaw & Co., Inc. | 0 | $0 | 0.00% | −45,187−100.0% | Sold out |
| Los Angeles Capital Management LLC | 0 | $0 | 0.00% | −40,902−100.0% | Sold out |
| Walleye Capital LLC | 0 | $0 | 0.00% | −38,070−100.0% | Sold out |
| Merit Financial Group, LLC | 0 | $0 | 0.00% | −36,823−100.0% | Sold out |
| Avenir Corp | 0 | $0 | 0.00% | −35,000−100.0% | Sold out |
| Simplex Trading, LLC | 0 | $0 | 0.00% | −31,987−100.0% | Sold out |
| Boothbay Fund Management, LLC | 0 | $0 | 0.00% | −30,000−100.0% | Sold out |
| Baader Bank INC | 0 | $0 | 0.00% | −20,000−100.0% | Sold out |
| Bayesian Capital Management, LP | 0 | $0 | 0.00% | −16,320−100.0% | Sold out |
| Occudo Quantitative Strategies LP | 0 | $0 | 0.00% | −15,770−100.0% | Sold out |
| Gsa Capital Partners LLP | 0 | $0 | 0.00% | −14,341−100.0% | Sold out |
| Bridgefront Capital, LLC | 0 | $0 | 0.00% | −12,091−100.0% | Sold out |
| Cornercap Investment Counsel Inc | 0 | $0 | 0.00% | −12,050−100.0% | Sold out |
| O'Shaughnessy Asset Management, LLC | 0 | $0 | 0.00% | −11,153−100.0% | Sold out |
| Versor Investments LP | 0 | $0 | 0.00% | −10,900−100.0% | Sold out |
| Prudential Financial Inc | 0 | $0 | 0.00% | −10,857−100.0% | Sold out |
| Panagora Asset Management Inc | 0 | $0 | 0.00% | −10,322−100.0% | Sold out |
| Western Wealth Management, LLC | 0 | $0 | 0.00% | −10,000−100.0% | Sold out |
| Quantbot Technologies LP | 0 | $0 | 0.00% | −5,450−100.0% | Sold out |
| Archer Investment Corp | 0 | $0 | 0.00% | −1,000−100.0% | Sold out |
| Greenline Partners, LLC | 0 | $0 | 0.00% | −900−100.0% | Sold out |
| Harbour Investments, Inc. | 0 | $0 | 0.00% | −570−100.0% | Sold out |
| GeoWealth Management, LLC | 0 | $0 | 0.00% | −521−100.0% | Sold out |
| Newbridge Financial Services Group, Inc. | 0 | $0 | 0.00% | −150−100.0% | Sold out |
| Assetmark, Inc | 0 | $0 | 0.00% | −84−100.0% | Sold out |
| Valley National Advisers Inc | 0 | $0 | 0.00% | −98−100.0% | Sold out |
| Nelson, Van Denburg & Campbell Wealth Management Group, LLC | 0 | $0 | 0.00% | −54−100.0% | Sold out |
| Creekmur Asset Management LLC | 0 | $0 | 0.00% | −38−100.0% | Sold out |
| Synergy Financial Management, LLC | 0 | $0 | 0.00% | −17−100.0% | Sold out |
| Nuveen Asset Management, LLC | – | – | – | – | Not filed |
| Dorchester Wealth Management Co | – | – | – | – | Not filed |
| Global Retirement Partners, LLC | – | – | – | – | Not filed |