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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 26 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
Vanguard Group Inc11,822,381$206.9M0.00%+89,629+0.8%Added
FMR LLC9,730,002$170.3M0.01%+805,640+9.0%Added
Granahan Investment Management Inc8,482,357$148.4M3.06%+1,319,705+18.4%Added
BlackRock Inc.8,309,705$145.4M0.00%−21,586−0.3%Reduced
Allianz Asset Management GmbH3,802,864$66.6M0.05%−1,445,915−27.5%Reduced
Allspring Global Investments Holdings, LLC3,033,364$53.1M0.06%+3,033,364New
Edenbrook Capital, LLC2,764,416$48.4M14.90%+1,144,771+70.7%Added
State Street Corp2,618,886$45.8M0.00%+233,025+9.8%Added
Nine Ten Capital Management LLC2,366,412$41.4M4.30%+525,910+28.6%Added
Goldman Sachs Group Inc2,254,256$39.5M0.01%+981,296+77.1%Added
Geode Capital Management, LLC2,120,233$37.1M0.00%+58,894+2.9%Added
Nuveen Asset Management, LLC1,869,051$32.7M0.01%+324,451+21.0%Added
Northern Trust Corp1,288,459$22.5M0.00%−19,166−1.5%Reduced
Norges Bank1,190,742$20.8M0.00%+224,499+23.2%Added
Two Sigma Investments, LP1,113,292$19.5M0.05%+259,696+30.4%Added
Williams Jones Wealth Management, LLC.1,103,420$19.3M0.24%+223,708+25.4%Added
Millennium Management LLC1,051,871$18.4M0.02%+652,786+163.6%Added
Citadel Advisors LLC992,162$17.4M0.02%−290,568−22.7%Reduced
Voloridge Investment Management, LLC889,704$15.6M0.09%+595,277+202.2%Added
Charles Schwab Investment Management Inc841,978$14.7M0.00%+14,949+1.8%Added
Renaissance Technologies LLC822,864$14.4M0.02%+822,864New
UBS Asset Management Americas Inc727,381$12.7M0.00%−13,813−1.9%Reduced
Susquehanna International Group, LLP700,663$12.3M0.02%−191,530−21.5%Reduced
Morgan Stanley599,259$10.5M0.00%−353,099−37.1%Reduced
Invesco Ltd.596,962$10.4M0.00%+58,269+10.8%Added
Parallax Volatility Advisers, L.P.540,174$9.45M0.12%+361,846+202.9%Added
Bank of New York Mellon Corp493,424$8.63M0.00%+33,758+7.3%Added
Marshall Wace, LLP490,207$8.58M0.02%+490,207New
Thrivent Financial for Lutherans487,938$8.54M0.02%−8,202−1.7%Reduced
Collaborative Holdings Management LP470,000$8.22M3.38%−159,233−25.3%Reduced
Two Sigma Advisers, LP466,592$8.16M0.02%+194,900+71.7%Added
King Luther Capital Management Corp453,991$7.95M0.04%+119,486+35.7%Added
Kopion Asset Management, LLC450,241$7.88M6.52%+263,450+141.0%Added
Fred Alger Management, LLC437,301$7.65M0.02%−3,236,788−88.1%Reduced
Scout Investments, Inc.432,191$7.56M0.11%+59,481+16.0%Added
Kennedy Capital Management, Inc.414,583$7.25M0.15%+327,533+376.3%Added
P.A.W. Capital Corp400,000$7.00M6.42%+150,000+60.0%Added
Pier Capital, LLC391,183$6.85M0.72%+47,919+14.0%Added
Dimensional Fund Advisors LP379,275$6.64M0.00%−675−0.2%Reduced
S Squared Technology, LLC379,090$6.63M2.97%+160,300+73.3%Added
Equitec Proprietary Markets, LLC372,707$6.52M3.47%+372,707New
Silvercrest Asset Management Group LLC352,174$6.16M0.04%+143,115+68.5%Added
Royce & Associates LP333,450$5.83M0.04%00.0%Unchanged
Citigroup Inc319,205$5.59M0.01%+37,387+13.3%Added
JPMorgan Chase & Co297,000$5.20M0.00%+38,877+15.1%Added
Madison Asset Management, LLC289,852$5.07M0.07%+87,227+43.0%Added
Wells Fargo & Company276,684$4.84M0.00%−3,794,939−93.2%Reduced
Swiss National Bank274,300$4.80M0.00%+3,900+1.4%Added
Ameriprise Financial Inc273,224$4.78M0.00%−931,547−77.3%Reduced
Group One Trading, L.P.264,837$4.63M0.09%+152,485+135.7%Added
Investment Management of Virginia LLC252,380$4.42M0.71%−95,256−27.4%Reduced
California Public Employees Retirement System250,249$4.38M0.00%−30,473−10.9%Reduced
Roumell Asset Management, LLC240,000$4.20M5.60%+240,000New
Deutsche Bank AG239,221$4.19M0.00%−180,876−43.1%Reduced
Credit Suisse AG237,439$4.16M0.00%+55,336+30.4%Added
Public Sector Pension Investment Board223,000$3.90M0.02%+223,000New
Bank of America Corp216,232$3.78M0.00%+39,284+22.2%Added
Acuitas Investments, LLC204,745$3.58M1.53%+103,580+102.4%Added
Meros Investment Management, LP204,745$3.58M2.62%+204,745New
Beacon Investment Advisory Services, Inc.188,795$3.30M0.13%+26,624+16.4%Added
New York State Common Retirement Fund180,386$3.16M0.00%−600.0%Reduced
California State Teachers Retirement System176,476$3.09M0.00%+6,127+3.6%Added
Nordea Investment Management AB161,140$2.94M0.00%+600.0%Added
Stephens Inc160,874$2.81M0.04%+67,119+71.6%Added
Cubist Systematic Strategies, LLC153,657$2.69M0.03%+95,810+165.6%Added
Jane Street Group, LLC152,730$2.67M0.01%−4,610−2.9%Reduced
Griffin Asset Management, Inc.150,327$2.63M0.33%−4,432−2.9%Reduced
Fuller & Thaler Asset Management, Inc.146,120$2.56M0.01%+700+0.5%Added
Rhumbline Advisers144,463$2.53M0.00%+5,906+4.3%Added
State of New Jersey Common Pension Fund D136,739$2.39M0.01%+28,392+26.2%Added
Woodmont Investment Counsel LLC133,150$2.33M0.30%+5,679+4.5%Added
Brasada Capital Management, LP150,503$2.27M0.43%−22,494−13.0%Reduced
HSBC Holdings PLC126,180$2.23M0.00%−33,371−20.9%Reduced
Alliancebernstein L.P.127,251$2.23M0.00%−2,100−1.6%Reduced
Manatuck Hill Partners, LLC123,958$2.17M0.82%−216,400−63.6%Reduced
Legal & General Group Plc118,234$2.07M0.00%+6,984+6.3%Added
Kerrisdale Advisers, LLC114,923$2.01M0.42%+114,923New
State of Wisconsin Investment Board110,000$1.93M0.00%−11,000−9.1%Reduced
ExodusPoint Capital Management, LP102,644$1.80M0.02%−273,190−72.7%Reduced
HighTower Advisors, LLC102,368$1.79M0.00%−826−0.8%Reduced
UBS Group AG99,963$1.75M0.00%+40,730+68.8%Added
Parametric Portfolio Associates LLC99,480$1.74M0.00%+2,415+2.5%Added
Advisory Services Network, LLC92,752$1.62M0.05%+4,330+4.9%Added
Knights of Columbus Asset Advisors LLC92,635$1.62M0.13%+24,065+35.1%Added
Boothbay Fund Management, LLC92,642$1.62M0.05%+58,245+169.3%Added
Royal Bank of Canada87,829$1.54M0.00%+27,653+46.0%Added
Quantbot Technologies LP87,689$1.53M0.12%+87,689New
Simplex Trading, LLC75,473$1.32M0.04%+75,473New
PEAK6 Investments LLC71,512$1.25M0.04%+62,720+713.4%Added
Round Table Services, LLC70,000$1.23M0.23%−20,000−22.2%Reduced
American International Group, Inc.69,016$1.21M0.01%−2,064−2.9%Reduced
Manufacturers Life Insurance Company, The65,746$1.15M0.00%−220−0.3%Reduced
Greenwood Capital Associates LLC65,773$1.15M0.16%+10,433+18.9%Added
Dynamic Technology Lab Private Ltd64,176$1.12M0.12%+49,576+339.6%Added
Russell Investments Group, Ltd.63,500$1.11M0.00%−70,149−52.5%Reduced
Tudor Investment Corp Et Al63,485$1.11M0.02%+63,485New
Millrace Asset Group, Inc.59,338$1.04M0.61%−98,933−62.5%Reduced
1492 Capital Management LLC59,274$1.04M0.51%+21,753+58.0%Added
First Trust Advisors LP58,531$1.02M0.00%+34,777+146.4%Added
PDT Partners, LLC57,672$1.01M0.08%+44,547+339.4%Added