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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 25 sales; 311 institutions reported holding it in 13F filings for Q2 2026, worth $2.69B in total; no superinvestor holds it.

13F holders, Q2 2021

Institutional positions in Magnite, Inc. as of Jun 30, 2021. 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
268
−11 vs. Q1 2021
Shares held
85.4M
−961.7K (−1.1%) vs. Q1 2021
Total value
$2.89B
−$701.7M (−19.5%) vs. Q1 2021
New holders
52
93 more added
Sold out
63
78 more reduced

1 institution that held it in Q1 2021 haven't filed for Q2 2021 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 2021: 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.

Institutional holdersQ2 2021: 268 institutions
Q1 2021: 280 institutionsQ2 2021: 268 institutionsQ3 2021: 279 institutionsQ4 2021: 248 institutionsQ1 2022: 231 institutionsQ2 2022: 231 institutionsQ3 2022: 218 institutionsQ4 2022: 231 institutionsQ1 2023: 224 institutionsQ2 2023: 224 institutionsQ3 2023: 215 institutionsQ4 2023: 217 institutionsQ1 2024: 232 institutionsQ2 2024: 269 institutionsQ3 2024: 280 institutionsQ4 2024: 286 institutionsQ1 2025: 293 institutionsQ2 2025: 287 institutionsQ3 2025: 316 institutionsQ4 2025: 304 institutionsQ1 2026: 297 institutionsQ2 2026: 311 institutions
Value heldQ2 2021: $2.89B
Q1 2021: $3.59BQ2 2021: $2.89BQ3 2021: $2.52BQ4 2021: $1.57BQ1 2022: $1.17BQ2 2022: $781.6MQ3 2022: $679.0MQ4 2022: $988.1MQ1 2023: $892.4MQ2 2023: $1.39BQ3 2023: $780.6MQ4 2023: $959.0MQ1 2024: $1.10BQ2 2024: $1.39BQ3 2024: $1.65BQ4 2024: $1.97BQ1 2025: $1.52BQ2 2025: $3.54BQ3 2025: $3.00BQ4 2025: $2.22BQ1 2026: $1.56BQ2 2026: $2.69B
Institutions holding MGNI and their total value by quarter
QuarterHoldersValue
Q2 2026311$2.69B
Q1 2026297$1.56B
Q4 2025304$2.22B
Q3 2025316$3.00B
Q2 2025287$3.54B
Q1 2025293$1.52B
Q4 2024286$1.97B
Q3 2024280$1.65B
Q2 2024269$1.39B
Q1 2024232$1.10B
Q4 2023217$959.0M
Q3 2023215$780.6M
Q2 2023224$1.39B
Q1 2023224$892.4M
Q4 2022231$988.1M
Q3 2022218$679.0M
Q2 2022231$781.6M
Q1 2022231$1.17B
Q4 2021248$1.57B
Q3 2021279$2.52B
Q2 2021268$2.89B
Q1 2021280$3.59B

Institutions, Q2 2021

Shares, value and share of portfolio for each institution holding Magnite, Inc.; share changes are against Q1 2021.

Institutions holding MGNI in Q2 2021
InstitutionSharesValue% of portfolioChange in sharesAction
Madison Asset Management, LLC151,638$5.13M0.07%+30,965+25.7%Added
Griffin Asset Management, Inc.152,874$5.17M0.62%+2,017+1.3%Added
Beacon Investment Advisory Services, Inc.158,079$5.35M0.22%+6,349+4.2%Added
Calamos Advisors LLC165,272$5.59M0.03%−94,132−36.3%Reduced
Kopion Asset Management, LLC165,816$5.61M3.89%+43,860+36.0%Added
Cubist Systematic Strategies, LLC168,374$5.70M0.06%+144,592+608.0%Added
Holocene Advisors, LP178,997$6.06M0.04%+178,997New
S Squared Technology, LLC188,790$6.39M2.89%00.0%Unchanged
Credit Suisse AG197,126$6.67M0.01%+7,822+4.1%Added
Russell Investments Group, Ltd.200,542$6.78M0.01%−321,890−61.6%Reduced
P.A.W. Capital Corp210,000$7.11M6.07%+10,000+5.0%Added
Silvercrest Asset Management Group LLC213,749$7.23M0.05%+79,351+59.0%Added
New York State Common Retirement Fund219,376$7.42M0.01%−7,736−3.4%Reduced
UBS Group AG219,400$7.42M0.00%−4,616−2.1%Reduced
SG Capital Management LLC227,056$7.68M2.14%+227,056New
Citigroup Inc229,306$7.76M0.01%+158,179+222.4%Added
Friess Associates LLC233,613$7.91M2.98%+78,621+50.7%Added
Thrivent Financial for Lutherans240,970$8.15M0.02%+118,464+96.7%Added
Swiss National Bank242,000$8.19M0.01%−1,000−0.4%Reduced
Voya Investment Management LLC243,461$8.24M0.02%+119,967+97.1%Added
California Public Employees Retirement System243,975$8.26M0.01%−24,988−9.3%Reduced
EMJ Capital Ltd.255,000$8.63M14.14%+255,000New
Nishkama Capital, LLC259,848$8.79M3.21%+2,028+0.8%Added
Primecap Management Co266,500$9.02M0.01%−33,500−11.2%Reduced
Kent Lake Capital LLC300,000$10.2M3.89%+300,000New
Lisanti Capital Growth, LLC303,560$10.3M1.27%+15,546+5.4%Added
King Luther Capital Management Corp309,761$10.5M0.05%+56,251+22.2%Added
M&G Investment Management Ltd321,568$10.9M0.06%+321,568New
Royce & Associates LP325,300$11.0M0.08%+13,200+4.2%Added
Kettle Hill Capital Management, LLC332,880$11.3M2.00%+332,880New
Pier Capital, LLC353,844$12.0M1.20%+85,554+31.9%Added
Manatuck Hill Partners, LLC372,958$12.6M3.82%+199,500+115.0%Added
Scout Investments, Inc.376,851$12.8M0.19%−31,636−7.7%Reduced
Bank of New York Mellon Corp385,202$13.0M0.00%−65,598−14.6%Reduced
JPMorgan Chase & Co416,882$14.1M0.00%−252,145−37.7%Reduced
Deutsche Bank AG447,572$15.1M0.01%−3,941−0.9%Reduced
Collaborative Holdings Management LP629,233$21.3M10.28%+62,000+10.9%Added
Voloridge Investment Management, LLC630,451$21.3M0.15%+401,279+175.1%Added
Two Sigma Investments, LP647,402$21.9M0.06%+491,459+315.2%Added
Millennium Management LLC650,057$22.0M0.03%+272,357+72.1%Added
Truxt Investmentos Ltda.665,400$22.5M1.50%+665,400New
UBS Asset Management Americas Inc758,522$25.7M0.01%−8,537−1.1%Reduced
Susquehanna International Group, LLP787,679$26.7M0.03%−331,863−29.6%Reduced
Charles Schwab Investment Management Inc839,312$28.4M0.01%+62,536+8.1%Added
Hood River Capital Management LLC839,947$28.4M0.85%+839,947New
Norges Bank848,464$28.7M0.01%−219,747−20.6%Reduced
Williams Jones Wealth Management, LLC.858,698$29.1M0.41%+50,520+6.3%Added
Nine Ten Capital Management LLC997,511$33.8M3.63%+150,000+17.7%Added
Invesco Ltd.1,073,980$36.3M0.01%−60,276−5.3%Reduced
Renaissance Technologies LLC1,129,454$38.2M0.05%−893,859−44.2%Reduced
Ameriprise Financial Inc1,170,777$39.6M0.01%+832,509+246.1%Added
Northern Trust Corp1,201,767$40.7M0.01%−64,970−5.1%Reduced
Goldman Sachs Group Inc1,202,476$40.7M0.01%+545,002+82.9%Added
Nuveen Asset Management, LLC1,207,837$40.9M0.01%−5,867,748−82.9%Reduced
ProShare Advisors LLC1,217,649$41.2M0.12%−47,706−3.8%Reduced
Dimensional Fund Advisors LP1,236,929$41.9M0.01%+52,144+4.4%Added
Edenbrook Capital, LLC1,325,000$44.8M14.73%00.0%Unchanged
Morgan Stanley1,418,744$48.0M0.01%+457,886+47.7%Added
Citadel Advisors LLC1,506,437$51.0M0.05%+777,711+106.7%Added
Wells Fargo & Company1,808,725$61.2M0.01%+40,519+2.3%Added
Geode Capital Management, LLC2,049,097$69.3M0.01%+138,963+7.3%Added
State Street Corp2,128,694$72.0M0.00%−136,415−6.0%Reduced
Fred Alger Management, LLC3,534,248$119.6M0.28%+1,227,788+53.2%Added
Allianz Asset Management GmbH5,570,382$188.5M0.17%−1,412,166−20.2%Reduced
Granahan Investment Management Inc6,472,993$219.0M4.08%+1,359,524+26.6%Added
FMR LLC6,543,344$221.4M0.02%+2,690,504+69.8%Added
BlackRock Inc.7,591,537$256.9M0.01%−1,082,532−12.5%Reduced
Vanguard Group Inc11,649,321$394.2M0.01%+3,857,934+49.5%Added
Frontier Capital Management Co LLC0$00.00%−3,373,124−100.0%Sold out
Driehaus Capital Management LLC0$00.00%−1,413,588−100.0%Sold out
Lord, Abbett & Co. LLC0$00.00%−1,139,785−100.0%Sold out
Ashford Capital Management Inc0$00.00%−475,043−100.0%Sold out
Alta Park Capital, LP0$00.00%−428,891−100.0%Sold out
Castleark Management LLC0$00.00%−245,191−100.0%Sold out
Cannell Capital LLC0$00.00%−164,011−100.0%Sold out
Janney Montgomery Scott LLC0$00.00%−111,217−100.0%Sold out
D. E. Shaw & Co., Inc.0$00.00%−99,883−100.0%Sold out
EAM Investors, LLC0$00.00%−75,662−100.0%Sold out
EAM Global Investors LLC0$00.00%−55,051−100.0%Sold out
Neuberger Berman Group LLC0$00.00%−52,936−100.0%Sold out
Simplex Trading, LLC0$00.00%−49,469−100.0%Sold out
Marshall Wace, LLP0$00.00%−47,515−100.0%Sold out
Schroder Investment Management Group0$00.00%−44,981−100.0%Sold out
Bank of Montreal0$00.00%−45,982−100.0%Sold out
Oberweis Asset Management Inc0$00.00%−34,967−100.0%Sold out
Essex Investment Management Co LLC0$00.00%−34,422−100.0%Sold out
Nomura Holdings Inc0$00.00%−32,000−100.0%Sold out
Tudor Investment Corp Et Al0$00.00%−31,976−100.0%Sold out
Wolverine Asset Management LLC0$00.00%−29,620−100.0%Sold out
Sculptor Capital LP0$00.00%−28,800−100.0%Sold out
Hudson Bay Capital Management LP0$00.00%−28,800−100.0%Sold out
Chartwell Investment Partners, LLC0$00.00%−27,459−100.0%Sold out
Mackay Shields LLC0$00.00%−25,800−100.0%Sold out
Zacks Investment Management0$00.00%−25,120−100.0%Sold out
HAP Trading, LLC0$00.00%−20,827−100.0%Sold out
Kennedy Capital Management, Inc.0$00.00%−20,571−100.0%Sold out
Occudo Quantitative Strategies LP0$00.00%−20,416−100.0%Sold out
Meristem Family Wealth, LLC0$00.00%−19,418−100.0%Sold out
FWL Investment Management, LLC0$00.00%−17,540−100.0%Sold out
ETF Managers Group, LLC0$00.00%−17,917−100.0%Sold out