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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, Q1 2022

Institutional positions in Magnite, Inc. as of Mar 31, 2022. 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
231
−13 vs. Q4 2021
Shares held
88.7M
−780.6K (−0.9%) vs. Q4 2021
Total value
$1.17B
−$394.0M (−25.2%) vs. Q4 2021
New holders
34
95 more added
Sold out
47
56 more reduced

4 institutions that held it in Q4 2021 haven't filed for Q1 2022 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 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 holdersQ1 2022: 231 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 heldQ1 2022: $1.17B
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, Q1 2022

Shares, value and share of portfolio for each institution holding Magnite, Inc.; share changes are against Q4 2021.

Institutions holding MGNI in Q1 2022
InstitutionSharesValue% of portfolioChange in sharesAction
Walleye Trading LLC22,581$298.0K0.01%−30,128−57.2%Reduced
Atria Wealth Solutions, Inc.23,281$308.0K0.01%+23,281New
Perkins Capital Management Inc23,525$311.0K0.25%00.0%Unchanged
Principal Financial Group Inc23,581$312.0K0.00%+1,498+6.8%Added
Congress Park Capital LLC23,815$315.0K0.16%+175+0.7%Added
Commonwealth Equity Services, LLC24,290$320.0K0.00%−7,600−23.8%Reduced
ClariVest Asset Management LLC24,243$320.0K0.01%+24,243New
ProShare Advisors LLC24,351$322.0K0.00%−4,000−14.1%Reduced
First Trust Advisors LP24,431$323.0K0.00%−34,100−58.3%Reduced
Cambridge Investment Research Advisors, Inc.25,361$335.0K0.00%+5,512+27.8%Added
New York Life Investments Alternatives25,750$340.0K0.24%00.0%Unchanged
Teacher Retirement System of Texas25,970$343.0K0.00%+1,833+7.6%Added
Blackhill Capital Inc27,615$365.0K0.03%00.0%Unchanged
Barclays PLC28,725$379.0K0.00%+28,725New
Valeo Financial Advisors, LLC29,735$393.0K0.02%+6,565+28.3%Added
Los Angeles Capital Management LLC32,437$428.0K0.00%00.0%Unchanged
Algert Global LLC33,660$445.0K0.03%+33,660New
Arizona State Retirement System33,849$447.0K0.00%+290+0.9%Added
AlphaCrest Capital Management LLC35,726$472.0K0.03%+35,726New
UBS Group AG37,383$495.0K0.00%−62,580−62.6%Reduced
Oxbow Advisors, LLC40,400$534.0K0.05%+15,500+62.2%Added
State Board of Administration of Florida Retirement System41,411$547.0K0.00%00.0%Unchanged
Wolverine Trading, LLC40,806$570.0K0.02%+29,865+273.0%Added
Jane Street Group, LLC44,263$585.0K0.00%−108,467−71.0%Reduced
Quadrature Capital Ltd46,415$613.0K0.02%+32,560+235.0%Added
Qube Research & Technologies Ltd47,921$633.0K0.01%+29,047+153.9%Added
CIBC World Markets Inc.50,146$662.0K0.00%00.0%Unchanged
Manufacturers Life Insurance Company, The53,289$703.9K0.00%−12,457−18.9%Reduced
Voya Investment Management LLC54,200$716.0K0.00%+1,496+2.8%Added
Price T Rowe Associates Inc56,328$744.0K0.00%+2,939+5.5%Added
Formula Growth Ltd56,430$745.0K0.14%00.0%Unchanged
Simplex Trading, LLC57,770$763.0K0.02%−17,703−23.5%Reduced
1492 Capital Management LLC58,646$775.0K0.41%−628−1.1%Reduced
Russell Investments Group, Ltd.63,500$838.0K0.00%00.0%Unchanged
American International Group, Inc.64,477$852.0K0.00%−4,539−6.6%Reduced
CastleKnight Management LP66,154$874.0K0.24%+54,054+446.7%Added
MetLife Investment Management69,690$920.6K0.01%+24,725+55.0%Added
Royal Bank of Canada72,495$957.0K0.00%−15,334−17.5%Reduced
Connacht Asset Management LP73,585$972.0K1.45%+17,378+30.9%Added
Ardsley Advisory Partners LP75,000$991.0K0.20%+75,000New
Engineers Gate Manager LP84,151$1.11M0.04%+49,100+140.1%Added
Greenwood Capital Associates LLC85,839$1.13M0.30%+20,066+30.5%Added
PDT Partners, LLC88,150$1.16M0.10%+30,478+52.8%Added
Dark Forest Capital Management LP93,001$1.23M0.29%+91,653+6,799.2%Added
Invesco Ltd.99,001$1.31M0.00%−497,961−83.4%Reduced
Advisory Services Network, LLC99,776$1.32M0.04%+7,024+7.6%Added
Wells Fargo & Company105,562$1.40M0.00%−171,122−61.8%Reduced
Parametric Portfolio Associates LLC105,733$1.40M0.00%+6,253+6.3%Added
Round Table Services, LLC110,000$1.45M0.24%+40,000+57.1%Added
HighTower Advisors, LLC111,260$1.47M0.00%+8,892+8.7%Added
Legal & General Group Plc118,873$1.57M0.00%+639+0.5%Added
PEAK6 Investments LLC119,914$1.58M0.05%+48,402+67.7%Added
Alliancebernstein L.P.127,651$1.69M0.00%+400+0.3%Added
Knights of Columbus Asset Advisors LLC127,651$1.69M0.14%+35,016+37.8%Added
Holocene Advisors, LP130,239$1.72M0.01%+95,592+275.9%Added
HSBC Holdings PLC138,305$1.86M0.00%+12,125+9.6%Added
D. E. Shaw & Co., Inc.141,259$1.87M0.00%+141,259New
Fuller & Thaler Asset Management, Inc.146,895$1.94M0.01%+775+0.5%Added
Rhumbline Advisers150,213$1.98M0.00%+5,750+4.0%Added
Griffin Asset Management, Inc.150,462$1.99M0.26%+135+0.1%Added
State of Wisconsin Investment Board150,700$1.99M0.00%+40,700+37.0%Added
Brasada Capital Management, LP151,265$2.00M0.38%+762+0.5%Added
Millrace Asset Group, Inc.161,168$2.13M1.55%+101,830+171.6%Added
California State Teachers Retirement System162,289$2.14M0.00%−14,187−8.0%Reduced
Woodmont Investment Counsel LLC175,193$2.31M0.27%+42,043+31.6%Added
ExodusPoint Capital Management, LP175,440$2.32M0.03%+72,796+70.9%Added
Boothbay Fund Management, LLC178,302$2.35M0.08%+85,660+92.5%Added
Twinbeech Capital LP179,250$2.37M0.10%+146,898+454.1%Added
Group One Trading, L.P.185,314$2.45M0.05%−79,523−30.0%Reduced
Stephens Inc191,254$2.53M0.04%+30,380+18.9%Added
Allspring Global Investments Holdings, LLC191,554$2.53M0.00%−2,841,810−93.7%Reduced
New York State Common Retirement Fund204,973$2.71M0.00%+24,587+13.6%Added
Ameriprise Financial Inc209,359$2.77M0.00%−63,865−23.4%Reduced
Credit Suisse AG222,675$2.94M0.00%−14,764−6.2%Reduced
Cubist Systematic Strategies, LLC232,962$3.08M0.03%+79,305+51.6%Added
Beacon Investment Advisory Services, Inc.251,831$3.33M0.14%+63,036+33.4%Added
Bank of America Corp255,269$3.37M0.00%+39,037+18.1%Added
Healthcare of Ontario Pension Plan Trust Fund288,500$3.81M0.01%+288,500New
Equitec Proprietary Markets, LLC294,571$3.89M1.90%−78,136−21.0%Reduced
Swiss National Bank296,100$3.91M0.00%+21,800+7.9%Added
Nordea Investment Management AB298,070$4.09M0.01%+136,930+85.0%Added
Investment Management of Virginia LLC310,844$4.11M0.72%+58,464+23.2%Added
Meros Investment Management, LP327,068$4.32M3.42%+122,323+59.7%Added
JPMorgan Chase & Co333,176$4.40M0.00%+36,176+12.2%Added
Two Sigma Advisers, LP336,592$4.45M0.01%−130,000−27.9%Reduced
Madison Asset Management, LLC337,309$4.46M0.06%+47,457+16.4%Added
Dimensional Fund Advisors LP358,153$4.73M0.00%−21,122−5.6%Reduced
Roumell Asset Management, LLC374,056$4.94M7.98%+134,056+55.9%Added
S Squared Technology, LLC379,090$5.01M2.50%00.0%Unchanged
Citigroup Inc380,719$5.03M0.01%+61,514+19.3%Added
Manatuck Hill Partners, LLC390,891$5.16M2.01%+266,933+215.3%Added
Scout Investments, Inc.431,621$5.70M0.09%−570−0.1%Reduced
Fred Alger Management, LLC435,223$5.75M0.02%−2,078−0.5%Reduced
Kerrisdale Advisers, LLC442,708$5.85M1.79%+327,785+285.2%Added
Two Sigma Investments, LP480,625$6.35M0.02%−632,667−56.8%Reduced
Thrivent Financial for Lutherans487,544$6.44M0.01%−394−0.1%Reduced
Millennium Management LLC498,430$6.58M0.01%−553,441−52.6%Reduced
Voloridge Investment Management, LLC513,065$6.78M0.04%−376,639−42.3%Reduced
Canada Pension Plan Investment Board525,386$6.94M0.01%+525,386New
P.A.W. Capital Corp550,000$7.27M7.59%+150,000+37.5%Added