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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, Q4 2021

Institutional positions in Magnite, Inc. as of Dec 31, 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
248
−30 vs. Q3 2021
Shares held
89.6M
−532.7K (−0.6%) vs. Q3 2021
Total value
$1.57B
−$955.6M (−37.9%) vs. Q3 2021
New holders
43
91 more added
Sold out
73
78 more reduced

1 institution that held it in Q3 2021 haven't filed for Q4 2021 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 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 holdersQ4 2021: 248 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 heldQ4 2021: $1.57B
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, Q4 2021

Shares, value and share of portfolio for each institution holding Magnite, Inc.; share changes are against Q3 2021.

Institutions holding MGNI in Q4 2021
InstitutionSharesValue% of portfolioChange in sharesAction
Wells Fargo & Company276,684$4.84M0.00%−3,794,939−93.2%Reduced
Madison Asset Management, LLC289,852$5.07M0.07%+87,227+43.0%Added
JPMorgan Chase & Co297,000$5.20M0.00%+38,877+15.1%Added
Citigroup Inc319,205$5.59M0.01%+37,387+13.3%Added
Royce & Associates LP333,450$5.83M0.04%00.0%Unchanged
Silvercrest Asset Management Group LLC352,174$6.16M0.04%+143,115+68.5%Added
Equitec Proprietary Markets, LLC372,707$6.52M3.47%+372,707New
S Squared Technology, LLC379,090$6.63M2.97%+160,300+73.3%Added
Dimensional Fund Advisors LP379,275$6.64M0.00%−675−0.2%Reduced
Pier Capital, LLC391,183$6.85M0.72%+47,919+14.0%Added
P.A.W. Capital Corp400,000$7.00M6.42%+150,000+60.0%Added
Kennedy Capital Management, Inc.414,583$7.25M0.15%+327,533+376.3%Added
Scout Investments, Inc.432,191$7.56M0.11%+59,481+16.0%Added
Fred Alger Management, LLC437,301$7.65M0.02%−3,236,788−88.1%Reduced
Kopion Asset Management, LLC450,241$7.88M6.52%+263,450+141.0%Added
King Luther Capital Management Corp453,991$7.95M0.04%+119,486+35.7%Added
Two Sigma Advisers, LP466,592$8.16M0.02%+194,900+71.7%Added
Collaborative Holdings Management LP470,000$8.22M3.38%−159,233−25.3%Reduced
Thrivent Financial for Lutherans487,938$8.54M0.02%−8,202−1.7%Reduced
Marshall Wace, LLP490,207$8.58M0.02%+490,207New
Bank of New York Mellon Corp493,424$8.63M0.00%+33,758+7.3%Added
Parallax Volatility Advisers, L.P.540,174$9.45M0.12%+361,846+202.9%Added
Invesco Ltd.596,962$10.4M0.00%+58,269+10.8%Added
Morgan Stanley599,259$10.5M0.00%−353,099−37.1%Reduced
Susquehanna International Group, LLP700,663$12.3M0.02%−191,530−21.5%Reduced
UBS Asset Management Americas Inc727,381$12.7M0.00%−13,813−1.9%Reduced
Renaissance Technologies LLC822,864$14.4M0.02%+822,864New
Charles Schwab Investment Management Inc841,978$14.7M0.00%+14,949+1.8%Added
Voloridge Investment Management, LLC889,704$15.6M0.09%+595,277+202.2%Added
Citadel Advisors LLC992,162$17.4M0.02%−290,568−22.7%Reduced
Millennium Management LLC1,051,871$18.4M0.02%+652,786+163.6%Added
Williams Jones Wealth Management, LLC.1,103,420$19.3M0.24%+223,708+25.4%Added
Two Sigma Investments, LP1,113,292$19.5M0.05%+259,696+30.4%Added
Norges Bank1,190,742$20.8M0.00%+224,499+23.2%Added
Northern Trust Corp1,288,459$22.5M0.00%−19,166−1.5%Reduced
Nuveen Asset Management, LLC1,869,051$32.7M0.01%+324,451+21.0%Added
Geode Capital Management, LLC2,120,233$37.1M0.00%+58,894+2.9%Added
Goldman Sachs Group Inc2,254,256$39.5M0.01%+981,296+77.1%Added
Nine Ten Capital Management LLC2,366,412$41.4M4.30%+525,910+28.6%Added
State Street Corp2,618,886$45.8M0.00%+233,025+9.8%Added
Edenbrook Capital, LLC2,764,416$48.4M14.90%+1,144,771+70.7%Added
Allspring Global Investments Holdings, LLC3,033,364$53.1M0.06%+3,033,364New
Allianz Asset Management GmbH3,802,864$66.6M0.05%−1,445,915−27.5%Reduced
BlackRock Inc.8,309,705$145.4M0.00%−21,586−0.3%Reduced
Granahan Investment Management Inc8,482,357$148.4M3.06%+1,319,705+18.4%Added
FMR LLC9,730,002$170.3M0.01%+805,640+9.0%Added
Vanguard Group Inc11,822,381$206.9M0.00%+89,629+0.8%Added
Castleview Partners, LLC15,487––+15,487New
Hood River Capital Management LLC0$00.00%−808,545−100.0%Sold out
Hidden Lake Asset Management LP0$00.00%−761,590−100.0%Sold out
Truxt Investmentos Ltda.0$00.00%−723,500−100.0%Sold out
Alta Park Capital, LP0$00.00%−514,228−100.0%Sold out
M&G Investment Management Ltd0$00.00%−325,659−100.0%Sold out
Primecap Management Co0$00.00%−266,500−100.0%Sold out
Polar Asset Management Partners Inc.0$00.00%−176,400−100.0%Sold out
Kent Lake Capital LLC0$00.00%−150,000−100.0%Sold out
Lisanti Capital Growth, LLC0$00.00%−146,540−100.0%Sold out
EMJ Capital Ltd.0$00.00%−99,350−100.0%Sold out
Kettle Hill Capital Management, LLC0$00.00%−96,491−100.0%Sold out
FWL Investment Management, LLC0$00.00%−94,402−100.0%Sold out
VisionPoint Advisory Group, LLC0$00.00%−108,126−100.0%Sold out
Old Mission Capital LLC0$00.00%−68,355−100.0%Sold out
TCW Group Inc0$00.00%−61,261−100.0%Sold out
Mutual of America Capital Management LLC0$00.00%−55,856−100.0%Sold out
Calamos Advisors LLC0$00.00%−52,468−100.0%Sold out
NN Investment Partners Holdings N.V.0$00.00%−50,800−100.0%Sold out
Cannon Global Investment Management, LLC0$00.00%−45,000−100.0%Sold out
G2 Investment Partners Management LLC0$00.00%−40,000−100.0%Sold out
Healthcare of Ontario Pension Plan Trust Fund0$00.00%−36,000−100.0%Sold out
AQR Capital Management LLC0$00.00%−33,265−100.0%Sold out
Oppenheimer & Co Inc0$00.00%−32,200−100.0%Sold out
Paloma Partners Management Co0$00.00%−29,652−100.0%Sold out
Prelude Capital Management, LLC0$00.00%−23,412−100.0%Sold out
SEI Investments Co0$00.00%−22,696−100.0%Sold out
Stony Point Wealth Management Inc.0$00.00%−21,888−100.0%Sold out
Seven Eight Capital, LP0$00.00%−21,373−100.0%Sold out
First Republic Investment Management, Inc.0$00.00%−20,726−100.0%Sold out
Kamunting Street Capital Management, L.P.0$00.00%−18,767−100.0%Sold out
Two Sigma Securities, LLC0$00.00%−16,815−100.0%Sold out
Blueshift Asset Management, LLC0$00.00%−13,144−100.0%Sold out
Wedbush Securities Inc0$00.00%−12,363−100.0%Sold out
Algert Global LLC0$00.00%−11,964−100.0%Sold out
Cerity Partners LLC0$00.00%−11,848−100.0%Sold out
Golden Green, Inc.0$00.00%−10,171−100.0%Sold out
Tocqueville Asset Management L.P.0$00.00%−10,000−100.0%Sold out
Creative Planning0$00.00%−9,327−100.0%Sold out
Essex Investment Management Co LLC0$00.00%−9,049−100.0%Sold out
TownSquare Capital, LLC0$00.00%−8,663−100.0%Sold out
V Wealth Advisors LLC0$00.00%−8,500−100.0%Sold out
Pictet Asset Management SA0$00.00%−8,300−100.0%Sold out
Weil Company, Inc.0$00.00%−8,104−100.0%Sold out
Gluskin Sheff & Assoc Inc0$00.00%−8,021−100.0%Sold out
Aigen Investment Management, LP0$00.00%−7,864−100.0%Sold out
Mackenzie Financial Corp0$00.00%−7,415−100.0%Sold out
AdvisorNet Financial, Inc0$00.00%−7,400−100.0%Sold out
Raymond James Financial Services Advisors, Inc.0$00.00%−7,407−100.0%Sold out
Centiva Capital, LP0$00.00%−7,146−100.0%Sold out
O'Shaughnessy Asset Management, LLC0$00.00%−4,935−100.0%Sold out
Exane Derivatives0$00.00%−2,928−100.0%Sold out
Geneos Wealth Management Inc.0$00.00%−2,600−100.0%Sold out