Magnite (MGNI) Institutional Ownership

$14.45 -0.40 (-2.69%)

Closing price 04:00 PM Eastern

Extended Trading

$14.35 -0.10 (-0.68%)

As of 07:35 PM Eastern

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Current Institutional Ownership Percentage: 73.40%
Number of Institutional Buyers (last 12 months): 201
Total Institutional Inflows (last 12 months): $687.50M

Number of Institutional Sellers (last 12 months): 124
Total Institutional Outflows (last 12 months): $606.86M

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MGNI Institutional Buying and Selling by Quarter

Magnite Major Shareholders & Ownership History

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Reporting Date	Major Shareholder Name	Shares Held	Market Value	% of Portfolio	Quarterly Change in Shares	Ownership in Company
6/2/2026	Optiver Holding B.V.	5,579	$66K	0.0%	+2,746.4%	0.004%
5/19/2026	Bank of America Corp DE	1,125,196	$13.37M	0.0%	+72.6%	0.786%
5/18/2026	Amundi	22,817	$271K	0.0%	+74.8%	0.016%
5/18/2026	California State Teachers Retirement System	176,528	$2.10M	0.0%	+29.3%	0.123%
5/18/2026	Royal Bank of Canada	52,917	$628K	0.0%	-15.1%	0.037%
5/16/2026	The Manufacturers Life Insurance Company	64,558	$767K	0.0%	-1.6%	0.045%
5/16/2026	Quantinno Capital Management LP	128,133	$1.52M	0.0%	+144.3%	0.089%
5/15/2026	Rice Hall James & Associates LLC	192,808	$2.29M	0.1%	-3.0%	0.135%
5/15/2026	Granahan Investment Management LLC	2,553,413	$30.34M	1.5%	-18.1%	1.783%
5/15/2026	Entropy Technologies LP	24,761	$294K	0.0%	N/A	0.017%
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5/14/2026	Gabelli Funds LLC	45,820	$544K	0.0%	+48.7%	0.032%
5/14/2026	Gamco Investors INC. ET AL	60,653	$721K	0.0%	+36.4%	0.042%
5/14/2026	Sei Investments Co.	350,862	$4.17M	0.0%	+65.9%	0.245%
5/13/2026	Cetera Investment Advisers	13,157	$156K	0.0%	-61.6%	0.009%
5/8/2026	PNC Financial Services Group Inc.	3,783	$45K	0.0%	+106.3%	0.003%
5/7/2026	Dimensional Fund Advisors LP	3,983,674	$47.32M	0.0%	+10.2%	2.782%
5/7/2026	Swiss National Bank	284,300	$3.38M	0.0%	+1.3%	0.199%
5/6/2026	Jennison Associates LLC	57,849	$687K	0.0%	N/A	0.040%
5/6/2026	Allspring Global Investments Holdings LLC	41,766	$492K	0.0%	+11.5%	0.029%
5/5/2026	Bank of New York Mellon Corp	1,138,217	$13.52M	0.0%	-3.8%	0.795%
5/4/2026	Principal Financial Group Inc.	445,950	$5.30M	0.0%	+88.0%	0.311%
5/1/2026	Fifth Third Bancorp	58,823	$699K	0.0%	N/A	0.041%
4/30/2026	Money Concepts Capital Corp	11,659	$139K	0.0%	N/A	0.008%
4/30/2026	Greenwood Capital Associates LLC	36,804	$437K	0.0%	-4.7%	0.026%
4/28/2026	Stephens Inc. AR	85,537	$1.02M	0.0%	-2.1%	0.060%
4/27/2026	Elevation Point Wealth Partners LLC	23,648	$281K	0.0%	N/A	0.017%
4/25/2026	Strs Ohio	18,500	$220K	0.0%	-47.4%	0.013%
4/24/2026	Perkins Capital Management Inc.	119,275	$1.42M	1.3%	-2.1%	0.083%
4/22/2026	1492 Capital Management LLC	340,542	$4.05M	1.5%	-0.3%	0.236%
4/22/2026	Pictet Asset Management Holding SA	25,755	$306K	0.0%	+13.8%	0.018%
4/21/2026	Pinnacle Wealth Management Advisory Group LLC	22,577	$268K	0.0%	-7.6%	0.016%
4/21/2026	Penbrook Management LLC	112,190	$1.33M	1.0%	+260.6%	0.078%
4/20/2026	Cardinal Point Capital Management ULC	94,950	$1.13M	0.1%	+38.6%	0.066%
4/20/2026	Ritholtz Wealth Management	10,334	$123K	0.0%	N/A	0.007%
4/20/2026	Blue Trust Inc.	29,073	$345K	0.0%	+5.8%	0.020%
4/20/2026	OP Asset Management Ltd	12,621	$150K	0.0%	N/A	0.009%
4/16/2026	SG Americas Securities LLC	57,237	$680K	0.0%	-3.4%	0.040%
3/17/2026	Rockefeller Capital Management L.P.	8,402	$136K	0.0%	+563.7%	0.006%
2/19/2026	Invesco Ltd.	243,565	$3.95M	0.0%	-5.9%	0.170%
2/18/2026	Pillsbury Lake Capital LLC	583,644	$9.47M	3.3%	N/A	0.406%
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2/18/2026	XTX Topco Ltd	46,663	$757K	0.0%	-42.7%	0.032%
2/18/2026	Wellington Management Group LLP	8,629,238	$140.05M	0.1%	+67.7%	6.007%
2/18/2026	Ophir Asset Management Pty Ltd	2,384,187	$38.70M	4.3%	N/A	1.660%
2/18/2026	Man Group plc	311,536	$5.06M	0.0%	N/A	0.217%
2/18/2026	Engineers Gate Manager LP	41,137	$668K	0.0%	N/A	0.029%
2/18/2026	Balyasny Asset Management L.P.	873,208	$14.17M	0.0%	+6,775.7%	0.608%
2/18/2026	Boothbay Fund Management LLC	117,842	$1.91M	0.0%	+100.1%	0.082%
2/18/2026	Apis Capital Advisors LLC	604,000	$9.80M	1.7%	-28.0%	0.420%
2/18/2026	AYAL Capital Advisors Ltd	200,000	$3.25M	1.1%	+0.5%	0.139%
2/18/2026	325 Capital LLC	2,005,387	$32.55M	11.4%	+208.5%	1.396%
2/17/2026	Freestone Grove Partners LP	27,761	$451K	0.0%	N/A	0.019%
2/17/2026	Schonfeld Strategic Advisors LLC	779,681	$12.65M	0.1%	N/A	0.543%
2/17/2026	J. Goldman & Co LP	782,837	$12.71M	0.3%	-30.8%	0.545%
2/17/2026	AQR Capital Management LLC	97,535	$1.58M	0.0%	+102.9%	0.068%
2/17/2026	Sender Co & Partners Inc.	29,905	$485K	0.2%	N/A	0.021%
2/17/2026	Amundi	13,053	$212K	0.0%	N/A	0.009%
2/17/2026	Laurion Capital Management LP	50,869	$826K	0.0%	N/A	0.035%
2/17/2026	Price T Rowe Associates Inc. MD	711,495	$11.55M	0.0%	-72.1%	0.495%
2/17/2026	Osaic Holdings Inc.	16,529	$268K	0.0%	-65.0%	0.012%
2/17/2026	Weiss Asset Management LP	58,484	$949K	0.0%	N/A	0.041%
2/17/2026	Advisory Services Network LLC	56,527	$917K	0.0%	-11.1%	0.039%
2/17/2026	California State Teachers Retirement System	136,524	$2.22M	0.0%	+3.0%	0.095%
2/17/2026	Granahan Investment Management LLC	3,115,930	$50.57M	2.2%	-19.6%	2.169%
2/17/2026	State of Wisconsin Investment Board	219,559	$3.56M	0.0%	+6.1%	0.153%
2/17/2026	Captrust Financial Advisors	15,329	$249K	0.0%	+15.7%	0.011%
2/17/2026	Royal Bank of Canada	62,313	$1.01M	0.0%	+42.6%	0.043%
2/17/2026	Magnetar Financial LLC	96,163	$1.56M	0.0%	+533.1%	0.067%
2/17/2026	Norwood Investment Partners LP	330,000	$5.36M	6.0%	-23.3%	0.230%
2/17/2026	Rice Hall James & Associates LLC	198,828	$3.23M	0.2%	+49.3%	0.138%
2/17/2026	Blue Grotto Capital LLC	1,628,782	$26.44M	2.7%	+5.2%	1.134%
2/17/2026	Meros Investment Management LP	825,595	$13.40M	5.3%	+34.5%	0.575%
2/16/2026	Verition Fund Management LLC	62,277	$1.01M	0.0%	-29.5%	0.043%
2/16/2026	QVT Financial LP	61,293	$995K	0.1%	N/A	0.043%
2/16/2026	S Squared Technology LLC	402,862	$6.54M	2.5%	+50.4%	0.280%
2/16/2026	Kennedy Capital Management LLC	1,435,970	$23.31M	0.5%	+18.3%	1.000%
2/16/2026	Barclays PLC	366,390	$5.95M	0.0%	+73.9%	0.255%
2/16/2026	Blackhill Capital Inc.	5,991	$97K	0.0%	-48.5%	0.004%
2/13/2026	Marshall Wace LLP	28,763	$467K	0.0%	+127.4%	0.020%
2/13/2026	The Manufacturers Life Insurance Company	65,586	$1.06M	0.0%	-2.3%	0.046%
2/13/2026	CANADA LIFE ASSURANCE Co	15,140	$246K	0.0%	-66.0%	0.011%
2/13/2026	Smartleaf Asset Management LLC	3,678	$61K	0.0%	+98.4%	0.003%
2/13/2026	First Trust Advisors LP	199,872	$3.24M	0.0%	-34.4%	0.139%
2/13/2026	Charles Schwab Investment Management Inc.	1,187,501	$19.27M	0.0%	-2.5%	0.827%
2/13/2026	Police & Firemen s Retirement System of New Jersey	37,105	$602K	0.0%	-5.6%	0.026%
2/13/2026	State Street Corp	3,141,991	$51.00M	0.0%	+0.5%	2.187%
2/13/2026	Boston Partners	4,108,893	$66.60M	0.1%	-7.6%	2.860%
2/13/2026	UBS AM a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC	328,260	$5.33M	0.0%	+2.2%	0.229%
2/13/2026	Wells Fargo & Company MN	193,619	$3.14M	0.0%	-92.3%	0.135%
2/12/2026	Northwest & Ethical Investments L.P.	17,639	$290K	0.0%	-9.8%	0.012%
2/12/2026	Senvest Management LLC	224,100	$3.64M	0.1%	N/A	0.156%
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2/12/2026	Orion Porfolio Solutions LLC	29,372	$477K	0.0%	N/A	0.020%
2/12/2026	MetLife Investment Management LLC	78,025	$1.27M	0.0%	-4.3%	0.054%
2/12/2026	Hilton Capital Management LLC	180,473	$2.93M	0.2%	+27.9%	0.126%
2/12/2026	Commonwealth Equity Services LLC	254,318	$4.13M	0.0%	+19.8%	0.177%
2/12/2026	Dimensional Fund Advisors LP	3,615,820	$58.69M	0.0%	+1.4%	2.517%
2/12/2026	Federated Hermes Inc.	172,947	$2.81M	0.0%	+648.7%	0.120%
2/12/2026	Ensign Peak Advisors Inc	13,658	$222K	0.0%	-59.7%	0.010%
2/12/2026	Steward Partners Investment Advisory LLC	7,460	$121K	0.0%	+18,550.0%	0.005%
2/12/2026	Bank of Montreal Can	276,273	$4.48M	0.0%	+14.5%	0.192%
2/12/2026	Swiss National Bank	280,700	$4.56M	0.0%	+3.0%	0.195%

MGNI Institutional Ownership - Frequently Asked Questions

During the previous two years, 333 institutional investors and hedge funds held shares of Magnite. The most heavily invested institutionals were Vanguard Group Inc. ($240.25M), Capital Research Global Investors ($209.70M), Wellington Management Group LLP ($140.05M), American Century Companies Inc. ($100.06M), Edenbrook Capital LLC ($87.07M), Boston Partners ($66.60M), and Nuveen Asset Management LLC ($62.77M).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 293 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), Wellington Management Group LLP ($7.59M), American Century Companies Inc. ($4.57M), Nuveen LLC ($4.04M), Ophir Asset Management Pty Ltd ($2.38M), Boston Partners ($2.15M), and 325 Capital LLC ($2.01M).

Institutional investors have bought a total of 36,631,943 shares in the last 24 months. This purchase volume represents approximately $687.50M in transactions.

Of the 124 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 ($2.73M), 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 30,426,375 shares in the last 24 months. This volume of shares sold represents approximately $606.86M in transactions.

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This page (NASDAQ:MGNI) was last updated on 6/3/2026 by MarketBeat.com Staff.

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Magnite (MGNI) Institutional Ownership

MGNI Institutional Buying and Selling by Quarter

Magnite Major Shareholders & Ownership History

MGNI Institutional Ownership - Frequently Asked Questions

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Magnite (MGNI) Institutional Ownership

Institutional Ownership Changes (13F Filings) for Magnite (NASDAQ:MGNI)

MGNI Institutional Buying and Selling by Quarter

Magnite Major Shareholders & Ownership History

MGNI Institutional Ownership - Frequently Asked Questions

Who are the largest shareholders of MGNI shares?

What percentage of Magnite's stock is owned by institutional investors?

Which institutional investors have been buying Magnite's stock?

How much institutional buying is happening at Magnite?

Which of Magnite's major shareholders have been selling company stock?

How much institutional selling is happening at Magnite?

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