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Magnite (MGNI) Institutional Ownership

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$24.73 -0.71 (-2.79%)
Closing price 04:00 PM Eastern
Extended Trading
$24.62 -0.11 (-0.46%)
As of 07:56 PM Eastern
Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Massive. Learn more.
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Institutional Ownership Changes (13F Filings) for Magnite (NASDAQ:MGNI)

Current
Institutional Ownership
Percentage
73.40%
Number of
Institutional Buyers
(last 12 months)
185
Total
Institutional Inflows
(last 12 months)
$941.09M
Number of
Institutional Sellers
(last 12 months)
102
Total
Institutional Outflows
(last 12 months)
$586.67M
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MGNI Institutional Buying and Selling by Quarter

Magnite Major Shareholders & Ownership History

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Reporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
10/2/2026Versant Capital Management Inc5,662$143K0.0%+20.1%0.004%
9/9/2026Tidal Investments LLC165,838$3.15M0.0%+24.0%0.116%
9/9/2026WINTON GROUP Ltd121,900$2.31M0.1%N/A0.085%
9/9/2026Pinnacle Wealth Management Advisory Group LLC14,863$282K0.0%-34.2%0.010%
9/9/2026Nine Ten Capital Management LLC3,261,283$61.90M19.3%-6.3%2.274%
9/8/2026Allworth Financial LP1,567$30K0.0%+63.7%0.001%
9/8/2026Nykredit A S1,306$25K0.0%N/A0.001%
8/27/2026Corient Private Wealth LP25,326$481K0.0%N/A0.018%
8/26/2026Amundi21,157$402K0.0%-7.3%0.015%
8/22/2026Maestria Partners LLC1,158,430$21.99M7.6%-15.0%0.808%
8/21/2026Nykredit A S1,306$25K0.0%N/A0.001%
8/20/2026Two Sigma Securities LLC21,097$400K0.0%+75.4%0.015%
8/20/2026Alyeska Investment Group L.P.326,839$6.20M0.0%N/A0.228%
8/20/2026Northwestern Mutual Wealth Management Co.15,245$289K0.0%+408.2%0.011%
8/20/2026Greenwood Capital Associates LLC34,891$662K0.1%-5.2%0.024%
8/19/2026UBS AM a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC364,638$6.92M0.0%+12.9%0.254%
8/19/2026Wellington Management Group LLP6,044,492$114.72M0.0%-34.2%4.215%
8/17/2026Corient Private Wealth LP17,309$329K0.0%N/A0.012%
8/17/2026Parallax Volatility Advisers L.P.16,743$318K0.0%N/A0.012%
8/17/2026Pillsbury Lake Capital LLC217,753$4.13M0.0%N/A0.152%
8/17/2026Bank of America Corp DE1,181,832$22.43M0.0%N/A0.824%
8/15/2026Man Group plc53,054$1.01M0.0%N/A0.037%
8/15/2026Jupiter Topco LLC58,423$1.11M0.0%N/A0.041%
8/15/2026Meros Investment Management LP991,335$18.82M0.0%N/A0.691%
8/14/2026EFG International AG1,500$28K0.0%N/A0.001%
8/14/2026Canada Pension Plan Investment Board2,995,093$56.85M0.0%N/A2.088%
8/14/2026Manatuck Hill Partners LLC450,000$8.54M2.8%N/A0.314%
8/14/2026Legal & General Group Plc117,006$2.22M0.0%N/A0.082%
8/14/2026The Manufacturers Life Insurance Company71,015$1.35M0.0%N/A0.050%
8/14/2026S Squared Technology LLC567,862$10.78M0.0%N/A0.396%
8/14/2026Cetera Trust Company N.A4,270$81K0.0%N/A0.003%
8/14/2026Algert Global LLC137,505$2.61M0.0%-48.9%0.096%
8/12/2026Elevation Point Wealth Partners LLC24,149$458K0.0%N/A0.017%
8/12/2026Northwestern Mutual Wealth Management Co.15,245$289K0.0%N/A0.011%
8/12/2026Norwood Investment Partners LP235,000$4.46M0.0%N/A0.164%
8/11/2026Allworth Financial LP1,567$30K0.0%N/A0.001%
8/11/2026Lisanti Capital Growth LLC289,030$5.49M1.2%N/A0.202%
8/10/2026Great Lakes Advisors LLC176,615$3.35M0.0%N/A0.123%
8/7/2026Citizens Financial Group Inc. RI82,383$1.56M0.0%N/A0.058%
8/7/2026Buckland Partners Management Co LLC31,446$597K0.3%N/A0.022%
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8/7/2026BlackRock Inc.12,713,156$241.30M0.0%N/A8.877%
8/7/2026Deutsche Bank AG165,040$3.13M0.0%N/A0.115%
8/7/2026Rice Hall James & Associates LLC283,919$5.39M0.3%N/A0.198%
8/7/2026Persistent Asset Partners Ltd5,815$110K0.0%N/A0.004%
8/6/2026Bank of New York Mellon Corp1,162,198$22.06M0.0%N/A0.812%
8/6/2026State of Wyoming22,273$423K0.0%N/A0.016%
7/10/2026Handelsbanken Fonder AB47,300$898K0.0%+37.9%0.033%
7/10/2026Fulton Bank N.A.33,041$627K0.0%+7.5%0.023%
7/7/2026Harbor Investment Advisory LLC3,265$62K0.0%N/A0.002%
7/7/2026Central Pacific Bank Trust Division5,000$95K0.0%+100.0%0.003%
7/7/2026Moody National Bank Trust Division97,202$1.85M0.2%+82.3%0.068%
7/7/2026Kopion Asset Management LLC674,451$12.80M8.1%-21.2%0.471%
7/2/2026Versant Capital Management Inc4,715$89K0.0%-14.7%0.003%
6/18/2026Pacer Advisors Inc.501,578$5.96M0.0%N/A0.350%
6/2/2026Optiver Holding B.V.5,579$66K0.0%+2,746.4%0.004%
5/19/2026Bank of America Corp DE1,125,196$13.37M0.0%+72.6%0.786%
5/18/2026Amundi22,817$271K0.0%+74.8%0.016%
5/18/2026California State Teachers Retirement System176,528$2.10M0.0%+29.3%0.123%
5/18/2026Royal Bank of Canada52,917$628K0.0%-15.1%0.037%
5/16/2026The Manufacturers Life Insurance Company64,558$767K0.0%-1.6%0.045%
5/16/2026Quantinno Capital Management LP128,133$1.52M0.0%+144.3%0.089%
5/15/2026Rice Hall James & Associates LLC192,808$2.29M0.1%-3.0%0.135%
5/15/2026Granahan Investment Management LLC2,553,413$30.34M1.5%-18.1%1.783%
5/15/2026Entropy Technologies LP24,761$294K0.0%N/A0.017%
5/14/2026Gabelli Funds LLC45,820$544K0.0%+48.7%0.032%
5/14/2026Gamco Investors INC. ET AL60,653$721K0.0%+36.4%0.042%
5/14/2026Sei Investments Co.350,862$4.17M0.0%+65.9%0.245%
5/13/2026Cetera Investment Advisers13,157$156K0.0%-61.6%0.009%
5/8/2026PNC Financial Services Group Inc.3,783$45K0.0%+106.3%0.003%
5/7/2026Dimensional Fund Advisors LP3,983,674$47.32M0.0%+10.2%2.782%
5/7/2026Swiss National Bank284,300$3.38M0.0%+1.3%0.199%
5/6/2026Jennison Associates LLC57,849$687K0.0%N/A0.040%
5/6/2026Allspring Global Investments Holdings LLC41,766$492K0.0%+11.5%0.029%
5/5/2026Bank of New York Mellon Corp1,138,217$13.52M0.0%-3.8%0.795%
5/4/2026Principal Financial Group Inc.445,950$5.30M0.0%+88.0%0.311%
5/1/2026Fifth Third Bancorp58,823$699K0.0%N/A0.041%
4/30/2026Money Concepts Capital Corp11,659$139K0.0%N/A0.008%
4/30/2026Greenwood Capital Associates LLC36,804$437K0.0%-4.7%0.026%
4/28/2026Stephens Inc. AR85,537$1.02M0.0%-2.1%0.060%
4/27/2026Elevation Point Wealth Partners LLC23,648$281K0.0%N/A0.017%
4/25/2026Strs Ohio18,500$220K0.0%-47.4%0.013%
4/24/2026Perkins Capital Management Inc.119,275$1.42M1.3%-2.1%0.083%
4/22/20261492 Capital Management LLC340,542$4.05M1.5%-0.3%0.236%
4/22/2026Pictet Asset Management Holding SA25,755$306K0.0%+13.8%0.018%
4/21/2026Pinnacle Wealth Management Advisory Group LLC22,577$268K0.0%-7.6%0.016%
4/21/2026Penbrook Management LLC112,190$1.33M1.0%+260.6%0.078%
4/20/2026Cardinal Point Capital Management ULC94,950$1.13M0.1%+38.6%0.066%
4/20/2026Ritholtz Wealth Management10,334$123K0.0%N/A0.007%
4/20/2026Blue Trust Inc.29,073$345K0.0%+5.8%0.020%
4/20/2026OP Asset Management Ltd12,621$150K0.0%N/A0.009%
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4/16/2026SG Americas Securities LLC57,237$680K0.0%-3.4%0.040%
3/17/2026Rockefeller Capital Management L.P.8,402$136K0.0%+563.7%0.006%
2/19/2026Invesco Ltd.243,565$3.95M0.0%-5.9%0.170%
2/18/2026Pillsbury Lake Capital LLC583,644$9.47M3.3%N/A0.406%
2/18/2026XTX Topco Ltd46,663$757K0.0%-42.7%0.032%
2/18/2026Wellington Management Group LLP8,629,238$140.05M0.1%+67.7%6.007%
2/18/2026Ophir Asset Management Pty Ltd2,384,187$38.70M4.3%N/A1.660%
2/18/2026Man Group plc311,536$5.06M0.0%N/A0.217%
2/18/2026Engineers Gate Manager LP41,137$668K0.0%N/A0.029%
2/18/2026Balyasny Asset Management L.P.873,208$14.17M0.0%+6,775.7%0.608%


MGNI Institutional Ownership - Frequently Asked Questions

During the previous two years, 338 institutional investors and hedge funds held shares of Magnite. The most heavily invested institutionals were BlackRock Inc. ($241.30M), Vanguard Group Inc. ($240.25M), Capital Research Global Investors ($209.70M), Wellington Management Group LLP ($114.72M), American Century Companies Inc. ($100.06M), Edenbrook Capital LLC ($87.07M), and Boston Partners ($66.60M).Learn more on Magnite's institutional investors.

73.40% of Magnite's stock is owned by institutional investors. Learn more on MGNI's institutional investor holdings.

Of the 297 institutional investors that purchased Magnite's stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: Capital Research Global Investors ($13.66M), BlackRock Inc. ($12.71M), Wellington Management Group LLP ($7.59M), American Century Companies Inc. ($4.54M), Nuveen LLC ($4.04M), Canada Pension Plan Investment Board ($3.00M), and Ophir Asset Management Pty Ltd ($2.38M).

Institutional investors have bought a total of 52,213,679 shares in the last 24 months. This purchase volume represents approximately $941.09M in transactions.

Of the 102 institutional investors that sold Magnite's stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: Capital Research Global Investors ($5.94M), Wellington Management Group LLP ($5.87M), Wells Fargo & Company MN ($2.32M), Price T Rowe Associates Inc. MD ($1.84M), Universal Beteiligungs und Servicegesellschaft mbH ($1.51M), Boston Partners ($1.47M), and Dimensional Fund Advisors LP ($1.33M).

Institutional investors have sold a total of 30,419,530 shares in the last 24 months. This volume of shares sold represents approximately $586.67M in transactions.


Related Companies

Institutional ownership data for NASDAQ:MGNI is compiled from quarterly 13F filings submitted to the U.S. Securities and Exchange Commission (SEC), with the most recent received on 10/2/2026. New 13F filings are added each quarter as they're published.
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