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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 2024

Institutional positions in Magnite, Inc. as of Dec 31, 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
286
+14 vs. Q3 2024
Shares held
123.5M
+4.67M (+3.9%) vs. Q3 2024
Total value
$1.97B
+$322.1M (+19.6%) vs. Q3 2024
New holders
52
100 more added
Sold out
38
94 more reduced

8 institutions that held it in Q3 2024 haven't filed for Q4 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 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 holdersQ4 2024: 286 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 2024: $1.97B
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 2024

Shares, value and share of portfolio for each institution holding Magnite, Inc.; share changes are against Q3 2024.

Institutions holding MGNI in Q4 2024
InstitutionSharesValue% of portfolioChange in sharesAction
Vanguard Group Inc13,605,104$216.6M0.00%+257,032+1.9%Added
BlackRock, Inc.10,167,243$161.9M0.00%+319,005+3.2%Added
Capital Research Global Investors7,725,235$123.0M0.03%+7,725,235New
Wellington Management Group LLP7,030,011$111.9M0.02%+450,341+6.8%Added
Dimensional Fund Advisors LP5,524,643$88.0M0.02%+170,532+3.2%Added
Boston Partners4,756,323$76.1M0.09%+1,336,458+39.1%Added
Nuveen Asset Management, LLC3,942,780$62.8M0.02%−173,082−4.2%Reduced
Granahan Investment Management Inc3,613,084$57.5M2.40%−387,635−9.7%Reduced
Driehaus Capital Management LLC3,318,493$52.8M0.44%−98,335−2.9%Reduced
Nine Ten Capital Management LLC3,115,849$49.6M14.16%+493,983+18.8%Added
Edenbrook Capital, LLC3,103,542$49.4M23.57%−391,853−11.2%Reduced
Geode Capital Management, LLC2,957,578$47.1M0.00%−10,708−0.4%Reduced
State Street Corp2,942,130$46.8M0.00%−111,474−3.7%Reduced
Bank of New York Mellon Corp2,520,890$40.1M0.01%−343,243−12.0%Reduced
Nomura Asset Management Co Ltd1,873,835$29.8M0.09%+146,974+8.5%Added
UBS Group AG1,693,651$27.0M0.01%+1,450,621+596.9%Added
Northern Trust Corp1,658,535$26.4M0.00%+21,230+1.3%Added
FMR LLC1,614,777$25.7M0.00%−2,147,692−57.1%Reduced
Royce & Associates LP1,597,896$25.4M0.24%+109,595+7.4%Added
JPMorgan Chase & Co1,511,439$24.1M0.00%+84,497+5.9%Added
Kennedy Capital Management, Inc.1,469,767$23.4M0.52%−57,924−3.8%Reduced
Morgan Stanley1,199,894$19.1M0.00%+339,263+39.4%Added
Victory Capital Management Inc1,181,278$18.8M0.02%−159,427−11.9%Reduced
Goldman Sachs Group Inc1,150,546$18.3M0.00%+168,583+17.2%Added
Silvercrest Asset Management Group LLC1,069,753$17.0M0.11%−5,236−0.5%Reduced
Charles Schwab Investment Management Inc1,049,412$16.7M0.00%+16,308+1.6%Added
Stephens Investment Management Group LLC996,644$15.9M0.21%+592,853+146.8%Added
Maestria Partners LLC952,317$15.2M6.01%+952,317New
Meros Investment Management, LP927,411$14.8M6.61%−114,984−11.0%Reduced
Nordea Investment Management AB893,989$14.5M0.02%+35,490+4.1%Added
Granite Investment Partners, LLC908,811$14.5M0.63%−19,074−2.1%Reduced
Grizzlyrock Capital, LLC863,541$13.7M14.36%−4,630−0.5%Reduced
Harbor Capital Advisors, Inc.842,761$13.4M0.59%−78,770−8.5%Reduced
Marshall Wace, LLP796,994$12.7M0.02%−2,847,273−78.1%Reduced
Penn Capital Management Co Inc778,885$12.4M1.22%−265,412−25.4%Reduced
Intrinsic Edge Capital Management LLC719,532$11.5M1.55%−622,871−46.4%Reduced
Universal- Beteiligungs- und Servicegesellschaft mbH695,754$11.1M0.02%+695,754New
Qube Research & Technologies Ltd688,033$11.0M0.02%+46,801+7.3%Added
New York State Common Retirement Fund667,598$10.6M0.01%−103,533−13.4%Reduced
Ameriprise Financial Inc666,600$10.6M0.00%−172,636−20.6%Reduced
Frontier Capital Management Co LLC646,683$10.3M0.10%−1,112−0.2%Reduced
Kopion Asset Management, LLC641,509$10.2M7.17%−8,910−1.4%Reduced
CenterBook Partners LP625,765$9.96M0.60%+625,765New
Williams Jones Wealth Management, LLC.602,244$9.59M0.12%−72,277−10.7%Reduced
S Squared Technology, LLC561,621$8.94M3.71%−146,956−20.7%Reduced
Susquehanna International Group, LLP546,725$8.70M0.01%+284,920+108.8%Added
Raymond James Financial Inc545,564$8.68M0.00%+545,564New
King Luther Capital Management Corp534,567$8.51M0.04%+12,725+2.4%Added
Dana Investment Advisors, Inc.473,625$7.54M0.25%−15,839−3.2%Reduced
Advantage Alpha Capital Partners LP461,907$7.35M1.74%+7,350+1.6%Added
Norges Bank398,639$6.35M0.00%−52,032−11.5%Reduced
UBS Asset Management Americas Inc368,620$5.87M0.00%+24,659+7.2%Added
First Eagle Investment Management, LLC367,157$5.85M0.01%+367,157New
Bank of America Corp350,783$5.58M0.00%−207,944−37.2%Reduced
Citigroup Inc338,685$5.39M0.01%+108,730+47.3%Added
Pinnacle Associates Ltd331,961$5.28M0.07%+331,961New
1492 Capital Management LLC327,775$5.22M2.48%−2,658−0.8%Reduced
Squarepoint Ops LLC312,811$4.98M0.01%−537,716−63.2%Reduced
Citadel Advisors LLC310,239$4.94M0.00%−392,269−55.8%Reduced
American Century Companies Inc309,976$4.93M0.00%+17,545+6.0%Added
Connor, Clark & Lunn Investment Management Ltd.306,036$4.87M0.02%+156,929+105.2%Added
Voya Investment Management LLC304,299$4.84M0.01%+42,905+16.4%Added
Russell Investments Group, Ltd.277,605$4.42M0.01%−296,946−51.7%Reduced
First Trust Advisors LP277,418$4.42M0.00%+57,096+25.9%Added
Tudor Investment Corp Et Al273,336$4.35M0.05%−62,100−18.5%Reduced
Invesco Ltd.272,093$4.33M0.00%+70,778+35.2%Added
Swiss National Bank249,900$3.98M0.00%+3,800+1.5%Added
Barclays PLC240,375$3.83M0.00%+29,777+14.1%Added
EAM Global Investors LLC228,642$3.64M0.65%+228,642New
Wells Fargo & Company228,018$3.63M0.00%−5,046−2.2%Reduced
Millennium Management LLC218,966$3.49M0.00%+66,737+43.8%Added
Parallax Volatility Advisers, L.P.217,966$3.47M0.08%−142,009−39.4%Reduced
Oberweis Asset Management Inc205,700$3.27M0.15%+5,700+2.9%Added
EAM Investors, LLC198,276$3.16M0.45%+198,276New
EFG Asset Management (North America) Corp.197,770$3.15M0.43%+96,895+96.1%Added
P.A.W. Capital Corp195,000$3.10M5.92%−125,000−39.1%Reduced
Envestnet Asset Management Inc188,940$3.01M0.00%−22,362−10.6%Reduced
Rice Hall James & Associates, LLC188,466$3.00M0.16%+188,466New
Group One Trading, L.P.187,620$2.99M0.10%+82,135+77.9%Added
Rhumbline Advisers184,331$2.93M0.00%−5,353−2.8%Reduced
Algert Global LLC170,512$2.71M0.06%+11,437+7.2%Added
Lisanti Capital Growth, LLC168,045$2.68M0.64%+21,595+14.7%Added
Bank of Montreal163,305$2.60M0.00%+24,906+18.0%Added
Commonwealth Equity Services, LLC161,987$2.58M0.00%+33,114+25.7%Added
Hilton Capital Management, LLC156,206$2.49M0.22%+299+0.2%Added
Deutsche Bank AG151,406$2.41M0.00%+53,923+55.3%Added
Perkins Capital Management Inc143,825$2.29M2.03%−5,250−3.5%Reduced
Manatuck Hill Partners, LLC141,591$2.25M0.92%−300,900−68.0%Reduced
Legal & General Group Plc139,617$2.22M0.00%+11,569+9.0%Added
Jacobs Levy Equity Management, Inc138,659$2.21M0.01%−6,918−4.8%Reduced
Weiss Asset Management LP137,052$2.18M0.05%+137,052New
Alliancebernstein L.P.136,645$2.18M0.00%00.0%Unchanged
LPL Financial LLC129,603$2.06M0.00%+43,207+50.0%Added
Toroso Investments, LLC128,856$2.05M0.02%−1,724−1.3%Reduced
Franklin Resources Inc128,339$2.04M0.00%−16,224−11.2%Reduced
ExodusPoint Capital Management, LP127,645$2.03M0.02%+127,645New
Advisory Services Network, LLC127,542$2.03M0.04%+10,221+8.7%Added
Royal Bank of Canada126,766$2.02M0.00%−22,387−15.0%Reduced
Principal Financial Group Inc123,073$1.96M0.00%+15,558+14.5%Added
Susquehanna Fundamental Investments, LLC122,444$1.95M0.03%+122,444New