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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.

Q3 2023 vs. Q2 2023

How the institutions holding Magnite, Inc. changed between Q2 2023 and Q3 2023.

All holders in Q3 2023All holders in Q2 2023

13F holders of MGNI: Q2 2023 compared with Q3 2023
MeasureQ2 2023Of which not filed for Q3 2023Q3 2023Change
Holders2245215−4
Shares101.7M327.6K103.5M+2.09M (+2.1%)
Value$1.39B$4.47M$780.6M−$601.3M (−43.5%)

5 institutions that held it in Q2 2023 haven't filed for Q3 2023 yet. Not filing isn't selling, so the changes leave them out.

New holders (35)

Institutions that held Magnite, Inc. at the end of Q3 2023 but not at the end of Q2 2023.

Institutions new to MGNI in Q3 2023
InstitutionSharesValue% of portfolio
Nine Ten Capital Management LLC3,931,014$29.6M9.05%
Burgundy Asset Management Ltd.2,355,258$17.8M0.22%
Roumell Asset Management, LLC542,511$4.09M8.22%
Qube Research & Technologies Ltd302,947$2.28M0.01%
Harspring Capital Management, LLC250,000$1.89M0.50%
SG Americas Securities, LLC225,420$1.70M0.02%
Twinbeech Capital LP121,329$914.8K0.02%
Cinctive Capital Management LP88,911$670.4K0.04%
Assenagon Asset Management S.A.76,272$575.1K0.00%
Versor Investments LP59,500$448.6K0.09%
Algert Global LLC48,550$366.1K0.02%
Granite Bay Wealth Management, LLC23,814$257.0K0.00%
Capstone Investment Advisors, LLC33,516$252.7K0.01%
Johnson Investment Counsel Inc27,490$207.3K0.00%
IMC-Chicago, LLC27,153$204.7K0.01%
NBC Securities, Inc.26,377$198.0K0.02%
Man Group plc–$197.1K0.00%
Walleye Capital LLC25,204$190.0K0.00%
Seldon Capital LP24,400$184.0K0.17%
Engineers Gate Manager LP21,290$160.5K0.01%
AQR Capital Management LLC16,496$124.4K0.00%
Captrust Financial Advisors16,420$123.8K0.00%
Valeo Financial Advisors, LLC14,852$112.0K0.01%
Bank of Montreal13,583$110.2K0.00%
ExodusPoint Capital Management, LP13,080$99.0K0.00%
Pictet Asset Management Holding SA12,758$96.2K0.00%
Creative Planning5,865$44.2K0.00%
Johnson Financial Group, Inc.5,500$41.5K0.00%
Quarry LP3,542$26.7K0.02%
Headinvest, LLC2,280$16.9K0.00%
Comerica Bank814$6.14K0.00%
Orion Capital Management LLC500$3.77K0.00%
Authentikos Wealth Advisory, LLC38$2870.00%
DHJJ Financial Advisors, Ltd.13$990.00%
PFG Private Wealth Management, LLC5$380.00%

Sold out (39)

Institutions that held Magnite, Inc. at the end of Q2 2023 and filed for Q3 2023 without it.

Institutions that sold out of MGNI in Q3 2023
InstitutionShares, Q2 2023Value, Q2 2023
G2 Investment Partners Management LLC756,036$10.3M
Cannell Capital LLC646,404$8.82M
Engle Capital Management, L.P.622,000$8.49M
Lisanti Capital Growth, LLC601,430$8.21M
Castleark Management LLC409,820$5.59M
iA Global Asset Management Inc.356,730$4.87M
Oberweis Asset Management Inc340,700$4.65M
Renaissance Technologies LLC296,754$4.05M
Fred Alger Management, LLC272,714$3.72M
State of New Jersey Common Pension Fund D201,669$2.75M
Fuller & Thaler Asset Management, Inc.151,045$2.06M
Boothbay Fund Management, LLC86,181$1.18M
1492 Capital Management LLC78,974$1.08M
Quantbot Technologies LP72,209$985.7K
Alpha DNA Investment Management LLC60,923$831.6K
Legato Capital Management LLC51,250$699.6K
Occudo Quantitative Strategies LP44,878$612.6K
AE Wealth Management LLC43,427$592.8K
Mach-1 Financial Group, Inc.43,029$587.3K
Voloridge Investment Management, LLC41,812$570.7K
Level Four Advisory Services, LLC33,784$461.2K
Janney Montgomery Scott LLC32,289$441.0K
Brown Advisory Inc28,816$393.3K
SEI Investments Co27,466$374.9K
Simplex Trading, LLC24,057$328.0K
CM Wealth Advisors LLC15,290$230.4K
Arrowstreet Capital, Limited Partnership13,813$189.0K
Schonfeld Strategic Advisors LLC13,200$180.2K
Nebula Research & Development LLC12,877$175.8K
Marex Group plc11,936$162.9K
Teacher Retirement System of Texas10,212$139.0K
Coppell Advisory Solutions LLC3,809$52.3K
GWM Advisors LLC1,040$14.2K
Macroview Investment Management LLC911$12.4K
Pittenger & Anderson Inc432$5.90K
Farther Finance Advisors, LLC400$5.46K
Tucker Asset Management LLC295$4.03K
Bogart Wealth, LLC99$1.35K
Elequin Capital LP53$723

Not filed for Q3 2023 yet (5)

Institutions that held Magnite, Inc. at the end of Q2 2023 and haven't filed a 13F for Q3 2023. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding MGNI in Q2 2023 that haven't filed for Q3 2023
InstitutionShares, Q2 2023Value, Q2 2023
Lapides Asset Management, LLC172,400$2.35M
Aj Wealth Strategies, LLC100,000$1.36M
EA Series Trust36,531$498.6K
Pictet Asset Management SA12,758$174.1K
Kistler-Tiffany Companies, LLC5,865$80.1K