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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, 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
Vanguard Group Inc11,882,938$157.0M0.00%+60,557+0.5%Added
FMR LLC9,977,453$131.8M0.01%+247,451+2.5%Added
Granahan Investment Management Inc9,128,749$120.6M2.99%+646,392+7.6%Added
BlackRock Inc.8,311,834$109.8M0.00%+2,1290.0%Added
Edenbrook Capital, LLC3,106,901$41.0M12.63%+342,485+12.4%Added
State Street Corp2,691,498$35.6M0.00%+72,612+2.8%Added
Nine Ten Capital Management LLC2,366,412$31.3M4.07%00.0%Unchanged
Nuveen Asset Management, LLC2,298,919$30.3M0.01%+429,868+23.0%Added
Geode Capital Management, LLC2,226,680$29.4M0.00%+106,447+5.0%Added
Renaissance Technologies LLC1,964,654$26.0M0.03%+1,141,790+138.8%Added
Goldman Sachs Group Inc1,520,642$20.1M0.01%−733,614−32.5%Reduced
Bank of New York Mellon Corp1,510,551$20.0M0.00%+1,017,127+206.1%Added
Northern Trust Corp1,239,896$16.4M0.00%−48,563−3.8%Reduced
Norges Bank1,190,742$15.7M0.00%00.0%Unchanged
Parallax Volatility Advisers, L.P.1,114,597$14.7M0.35%+574,423+106.3%Added
Citadel Advisors LLC1,031,379$13.6M0.02%+39,217+4.0%Added
Williams Jones Wealth Management, LLC.964,708$12.7M0.18%−138,712−12.6%Reduced
Morgan Stanley917,685$12.1M0.00%+318,426+53.1%Added
Charles Schwab Investment Management Inc866,706$11.4M0.00%+24,728+2.9%Added
Marshall Wace, LLP854,004$11.3M0.02%+363,797+74.2%Added
Royce & Associates LP844,080$11.2M0.09%+510,630+153.1%Added
Kennedy Capital Management, Inc.733,745$9.69M0.23%+319,162+77.0%Added
Pier Capital, LLC719,193$9.50M1.21%+328,010+83.9%Added
UBS Asset Management Americas Inc712,901$9.42M0.00%−14,480−2.0%Reduced
Kopion Asset Management, LLC620,244$8.19M6.94%+170,003+37.8%Added
Deutsche Bank AG610,095$8.06M0.00%+370,874+155.0%Added
Silvercrest Asset Management Group LLC597,070$7.89M0.05%+244,896+69.5%Added
King Luther Capital Management Corp587,805$7.76M0.04%+133,814+29.5%Added
Susquehanna International Group, LLP583,482$7.71M0.01%−117,181−16.7%Reduced
BW Gestao de Investimentos Ltda.553,284$7.31M1.55%+553,284New
P.A.W. Capital Corp550,000$7.27M7.59%+150,000+37.5%Added
Canada Pension Plan Investment Board525,386$6.94M0.01%+525,386New
Voloridge Investment Management, LLC513,065$6.78M0.04%−376,639−42.3%Reduced
Millennium Management LLC498,430$6.58M0.01%−553,441−52.6%Reduced
Thrivent Financial for Lutherans487,544$6.44M0.01%−394−0.1%Reduced
Two Sigma Investments, LP480,625$6.35M0.02%−632,667−56.8%Reduced
Kerrisdale Advisers, LLC442,708$5.85M1.79%+327,785+285.2%Added
Fred Alger Management, LLC435,223$5.75M0.02%−2,078−0.5%Reduced
Scout Investments, Inc.431,621$5.70M0.09%−570−0.1%Reduced
Manatuck Hill Partners, LLC390,891$5.16M2.01%+266,933+215.3%Added
Citigroup Inc380,719$5.03M0.01%+61,514+19.3%Added
S Squared Technology, LLC379,090$5.01M2.50%00.0%Unchanged
Roumell Asset Management, LLC374,056$4.94M7.98%+134,056+55.9%Added
Dimensional Fund Advisors LP358,153$4.73M0.00%−21,122−5.6%Reduced
Madison Asset Management, LLC337,309$4.46M0.06%+47,457+16.4%Added
Two Sigma Advisers, LP336,592$4.45M0.01%−130,000−27.9%Reduced
JPMorgan Chase & Co333,176$4.40M0.00%+36,176+12.2%Added
Meros Investment Management, LP327,068$4.32M3.42%+122,323+59.7%Added
Investment Management of Virginia LLC310,844$4.11M0.72%+58,464+23.2%Added
Nordea Investment Management AB298,070$4.09M0.01%+136,930+85.0%Added
Swiss National Bank296,100$3.91M0.00%+21,800+7.9%Added
Equitec Proprietary Markets, LLC294,571$3.89M1.90%−78,136−21.0%Reduced
Healthcare of Ontario Pension Plan Trust Fund288,500$3.81M0.01%+288,500New
Bank of America Corp255,269$3.37M0.00%+39,037+18.1%Added
Beacon Investment Advisory Services, Inc.251,831$3.33M0.14%+63,036+33.4%Added
Cubist Systematic Strategies, LLC232,962$3.08M0.03%+79,305+51.6%Added
Credit Suisse AG222,675$2.94M0.00%−14,764−6.2%Reduced
Ameriprise Financial Inc209,359$2.77M0.00%−63,865−23.4%Reduced
New York State Common Retirement Fund204,973$2.71M0.00%+24,587+13.6%Added
Allspring Global Investments Holdings, LLC191,554$2.53M0.00%−2,841,810−93.7%Reduced
Stephens Inc191,254$2.53M0.04%+30,380+18.9%Added
Group One Trading, L.P.185,314$2.45M0.05%−79,523−30.0%Reduced
Twinbeech Capital LP179,250$2.37M0.10%+146,898+454.1%Added
Boothbay Fund Management, LLC178,302$2.35M0.08%+85,660+92.5%Added
ExodusPoint Capital Management, LP175,440$2.32M0.03%+72,796+70.9%Added
Woodmont Investment Counsel LLC175,193$2.31M0.27%+42,043+31.6%Added
California State Teachers Retirement System162,289$2.14M0.00%−14,187−8.0%Reduced
Millrace Asset Group, Inc.161,168$2.13M1.55%+101,830+171.6%Added
Brasada Capital Management, LP151,265$2.00M0.38%+762+0.5%Added
State of Wisconsin Investment Board150,700$1.99M0.00%+40,700+37.0%Added
Griffin Asset Management, Inc.150,462$1.99M0.26%+135+0.1%Added
Rhumbline Advisers150,213$1.98M0.00%+5,750+4.0%Added
Fuller & Thaler Asset Management, Inc.146,895$1.94M0.01%+775+0.5%Added
D. E. Shaw & Co., Inc.141,259$1.87M0.00%+141,259New
HSBC Holdings PLC138,305$1.86M0.00%+12,125+9.6%Added
Holocene Advisors, LP130,239$1.72M0.01%+95,592+275.9%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
PEAK6 Investments LLC119,914$1.58M0.05%+48,402+67.7%Added
Legal & General Group Plc118,873$1.57M0.00%+639+0.5%Added
HighTower Advisors, LLC111,260$1.47M0.00%+8,892+8.7%Added
Round Table Services, LLC110,000$1.45M0.24%+40,000+57.1%Added
Parametric Portfolio Associates LLC105,733$1.40M0.00%+6,253+6.3%Added
Wells Fargo & Company105,562$1.40M0.00%−171,122−61.8%Reduced
Advisory Services Network, LLC99,776$1.32M0.04%+7,024+7.6%Added
Invesco Ltd.99,001$1.31M0.00%−497,961−83.4%Reduced
Dark Forest Capital Management LP93,001$1.23M0.29%+91,653+6,799.2%Added
PDT Partners, LLC88,150$1.16M0.10%+30,478+52.8%Added
Greenwood Capital Associates LLC85,839$1.13M0.30%+20,066+30.5%Added
Engineers Gate Manager LP84,151$1.11M0.04%+49,100+140.1%Added
Ardsley Advisory Partners LP75,000$991.0K0.20%+75,000New
Connacht Asset Management LP73,585$972.0K1.45%+17,378+30.9%Added
Royal Bank of Canada72,495$957.0K0.00%−15,334−17.5%Reduced
MetLife Investment Management69,690$920.6K0.01%+24,725+55.0%Added
CastleKnight Management LP66,154$874.0K0.24%+54,054+446.7%Added
American International Group, Inc.64,477$852.0K0.00%−4,539−6.6%Reduced
Russell Investments Group, Ltd.63,500$838.0K0.00%00.0%Unchanged
1492 Capital Management LLC58,646$775.0K0.41%−628−1.1%Reduced
Simplex Trading, LLC57,770$763.0K0.02%−17,703−23.5%Reduced
Formula Growth Ltd56,430$745.0K0.14%00.0%Unchanged