Skip to main content

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, Q3 2024

Institutional positions in Magnite, Inc. as of Sep 30, 2024. 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
280
+15 vs. Q2 2024
Shares held
119.6M
+25.5M (+27.1%) vs. Q2 2024
Total value
$1.65B
+$403.6M (+32.3%) vs. Q2 2024
New holders
45
105 more added
Sold out
30
78 more reduced

4 institutions that held it in Q2 2024 haven't filed for Q3 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 2024: 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 holdersQ3 2024: 280 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 heldQ3 2024: $1.65B
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, Q3 2024

Shares, value and share of portfolio for each institution holding Magnite, Inc.; share changes are against Q2 2024.

Institutions holding MGNI in Q3 2024
InstitutionSharesValue% of portfolioChange in sharesAction
Vanguard Group Inc13,348,072$184.9M0.00%+383,777+3.0%Added
BlackRock, Inc.9,848,238$136.4M0.00%+9,848,238New
Wellington Management Group LLP6,579,670$91.1M0.02%+3,659,759+125.3%Added
Dimensional Fund Advisors LP5,354,111$74.2M0.02%−39,634−0.7%Reduced
Nuveen Asset Management, LLC4,115,862$57.0M0.02%−22,498−0.5%Reduced
Granahan Investment Management Inc4,000,719$55.4M2.18%−1,229,431−23.5%Reduced
FMR LLC3,762,469$52.1M0.00%−1,742,123−31.6%Reduced
Marshall Wace, LLP3,644,267$50.5M0.07%+2,084,747+133.7%Added
Edenbrook Capital, LLC3,495,395$48.4M28.59%−1,103,605−24.0%Reduced
Driehaus Capital Management LLC3,416,828$47.3M0.41%+2,669,069+356.9%Added
Boston Partners3,419,865$46.4M0.05%+1,311,393+62.2%Added
State Street Corp3,053,604$42.3M0.00%−67,346−2.2%Reduced
Geode Capital Management, LLC2,968,286$41.1M0.00%+63,545+2.2%Added
Bank of New York Mellon Corp2,864,133$39.7M0.01%−438,176−13.3%Reduced
Nine Ten Capital Management LLC2,621,866$36.3M10.97%+969,073+58.6%Added
Nomura Asset Management Co Ltd1,726,861$23.9M0.07%+1,726,861New
Northern Trust Corp1,637,305$22.7M0.00%+23,034+1.4%Added
Kennedy Capital Management, Inc.1,527,691$21.2M0.47%−237,275−13.4%Reduced
Royce & Associates LP1,488,301$20.6M0.19%+73,555+5.2%Added
JPMorgan Chase & Co1,426,942$19.8M0.00%−50,124−3.4%Reduced
Intrinsic Edge Capital Management LLC1,342,403$18.6M2.30%+1,342,403New
Victory Capital Management Inc1,340,705$18.6M0.02%+37,601+2.9%Added
Silvercrest Asset Management Group LLC1,074,989$14.9M0.10%−6,111−0.6%Reduced
Penn Capital Management Co Inc1,044,297$14.5M1.33%+123,487+13.4%Added
Meros Investment Management, LP1,042,395$14.4M6.53%−1,814−0.2%Reduced
Charles Schwab Investment Management Inc1,033,104$14.3M0.00%+26,656+2.6%Added
Nishkama Capital, LLC1,004,207$13.9M2.14%+1,004,207New
Goldman Sachs Group Inc981,963$13.6M0.00%+12,999+1.3%Added
Granite Investment Partners, LLC927,885$12.9M0.55%+83,127+9.8%Added
Harbor Capital Advisors, Inc.921,531$12.8M0.55%+531,069+136.0%Added
Nordea Investment Management AB858,499$12.1M0.01%−45,075−5.0%Reduced
Grizzlyrock Capital, LLC868,171$12.0M10.37%+65,004+8.1%Added
Morgan Stanley860,631$11.9M0.00%+137,380+19.0%Added
Squarepoint Ops LLC850,527$11.8M0.04%+281,816+49.6%Added
Jane Street Group, LLC848,204$11.7M0.02%+588,114+226.1%Added
Ameriprise Financial Inc839,236$11.6M0.00%+19,965+2.4%Added
New York State Common Retirement Fund771,131$10.7M0.01%+17,068+2.3%Added
S Squared Technology, LLC708,577$9.81M4.19%+214,072+43.3%Added
Citadel Advisors LLC702,508$9.73M0.01%+413,049+142.7%Added
Williams Jones Wealth Management, LLC.674,521$9.34M0.11%−20,049−2.9%Reduced
J. Goldman & Co LP673,729$9.33M0.41%+673,729New
Kopion Asset Management, LLC650,419$9.01M6.49%−168,533−20.6%Reduced
Frontier Capital Management Co LLC647,795$8.97M0.08%−4,891−0.7%Reduced
Qube Research & Technologies Ltd641,232$8.88M0.02%+596,792+1,342.9%Added
Russell Investments Group, Ltd.574,551$7.96M0.01%+80,515+16.3%Added
Bank of America Corp558,727$7.74M0.00%+54,472+10.8%Added
King Luther Capital Management Corp521,842$7.23M0.03%−5,779−1.1%Reduced
Dana Investment Advisors, Inc.489,464$6.78M0.22%−3,839−0.8%Reduced
Balyasny Asset Management LLC469,077$6.50M0.02%+447,902+2,115.2%Added
Advantage Alpha Capital Partners LP454,557$6.30M1.43%−270.0%Reduced
Norges Bank450,671$6.24M0.00%−121,728−21.3%Reduced
Manatuck Hill Partners, LLC442,491$6.13M2.32%00.0%Unchanged
Assenagon Asset Management S.A.409,340$5.67M0.01%+267,057+187.7%Added
Stephens Investment Management Group LLC403,791$5.59M0.08%+403,791New
Parallax Volatility Advisers, L.P.359,975$4.99M0.13%−181,300−33.5%Reduced
UBS Asset Management Americas Inc343,961$4.76M0.00%+10,994+3.3%Added
Tudor Investment Corp Et Al335,436$4.65M0.05%+28,385+9.2%Added
1492 Capital Management LLC330,433$4.58M2.29%+8,777+2.7%Added
P.A.W. Capital Corp320,000$4.43M9.99%−30,000−8.6%Reduced
Scout Investments, Inc.348,946$4.27M0.11%−56,491−13.9%Reduced
American Century Companies Inc292,431$4.05M0.00%+45,082+18.2%Added
Gsa Capital Partners LLP264,104$3.66M0.28%−25,516−8.8%Reduced
Susquehanna International Group, LLP261,805$3.63M0.01%+261,805New
Voya Investment Management LLC261,394$3.62M0.00%+217,375+493.8%Added
Swiss National Bank246,100$3.41M0.00%−1,600−0.6%Reduced
UBS Group AG243,030$3.37M0.00%+13,520+5.9%Added
Wells Fargo & Company233,064$3.23M0.00%+120,947+107.9%Added
Citigroup Inc229,955$3.18M0.00%+71,688+45.3%Added
First Trust Advisors LP220,322$3.05M0.00%−83,169−27.4%Reduced
Envestnet Asset Management Inc211,302$2.93M0.00%−2,274−1.1%Reduced
Barclays PLC210,598$2.92M0.00%+164,093+352.9%Added
Panagora Asset Management Inc206,370$2.86M0.01%−1,158−0.6%Reduced
Invesco Ltd.201,315$2.79M0.00%+2,791+1.4%Added
Oberweis Asset Management Inc200,000$2.77M0.14%00.0%Unchanged
Calamos Advisors LLC190,980$2.65M0.01%+36,848+23.9%Added
Rhumbline Advisers189,684$2.63M0.00%−12,589−6.2%Reduced
Clough Capital Partners L P173,478$2.40M0.25%+27,555+18.9%Added
Millrace Asset Group, Inc.165,330$2.29M2.33%−48,361−22.6%Reduced
Algert Global LLC159,075$2.20M0.06%+16,920+11.9%Added
Hilton Capital Management, LLC155,907$2.16M0.17%−4,744−3.0%Reduced
Millennium Management LLC152,229$2.11M0.00%+118,511+351.5%Added
Royal Bank of Canada149,153$2.07M0.00%+85,268+133.5%Added
Connor, Clark & Lunn Investment Management Ltd.149,107$2.07M0.01%+149,107New
Perkins Capital Management Inc149,075$2.06M1.94%00.0%Unchanged
Concentric Capital Strategies, LP147,184$2.04M0.13%+147,184New
Lisanti Capital Growth, LLC146,450$2.03M0.51%−136,395−48.2%Reduced
Jacobs Levy Equity Management, Inc145,577$2.02M0.01%+134,959+1,271.0%Added
Thrivent Financial for Lutherans144,477$2.00M0.00%00.0%Unchanged
Bank of Montreal138,399$1.90M0.00%+138,399New
Alliancebernstein L.P.136,645$1.89M0.00%−240.0%Reduced
Toroso Investments, LLC130,580$1.81M0.02%+23,688+22.2%Added
Franklin Resources Inc144,563$1.79M0.00%+72,169+99.7%Added
Commonwealth Equity Services, LLC128,873$1.78M0.00%+47,300+58.0%Added
Legal & General Group Plc128,048$1.77M0.00%+3,278+2.6%Added
Wedge Capital Management L L P123,138$1.71M0.03%+28,108+29.6%Added
California State Teachers Retirement System119,214$1.65M0.00%−3,619−2.9%Reduced
Advisory Services Network, LLC117,321$1.56M0.03%00.0%Unchanged
Principal Financial Group Inc107,515$1.49M0.00%+91,031+552.2%Added
Group One Trading, L.P.105,485$1.46M0.06%+105,485New
Cerity Partners LLC103,366$1.43M0.00%−757−0.7%Reduced