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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 2023

Institutional positions in Magnite, Inc. as of Dec 31, 2023. 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
217
+3 vs. Q3 2023
Shares held
102.7M
−805.1K (−0.8%) vs. Q3 2023
Total value
$959.0M
+$178.5M (+22.9%) vs. Q3 2023
New holders
31
61 more added
Sold out
28
70 more reduced

1 institution that held it in Q3 2023 haven't filed for Q4 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 2023: 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 2023: 217 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 2023: $959.0M
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 2023

Shares, value and share of portfolio for each institution holding Magnite, Inc.; share changes are against Q3 2023.

Institutions holding MGNI in Q4 2023
InstitutionSharesValue% of portfolioChange in sharesAction
Vanguard Group Inc12,651,675$118.2M0.00%+209,771+1.7%Added
BlackRock Inc.10,030,800$93.7M0.00%+803,871+8.7%Added
FMR LLC6,965,527$65.1M0.00%+2,565,215+58.3%Added
Granahan Investment Management Inc6,726,268$62.8M2.08%−477,535−6.6%Reduced
Edenbrook Capital, LLC5,848,398$54.6M23.53%00.0%Unchanged
Dimensional Fund Advisors LP5,439,260$50.8M0.01%−248,508−4.4%Reduced
Nine Ten Capital Management LLC4,132,633$38.6M9.71%+201,619+5.1%Added
Bank of New York Mellon Corp3,189,374$29.8M0.01%−264,270−7.7%Reduced
State Street Corp2,965,924$27.7M0.00%+164,539+5.9%Added
Wellington Management Group LLP2,939,541$27.5M0.01%+52,129+1.8%Added
Nuveen Asset Management, LLC2,901,173$27.1M0.01%+335,474+13.1%Added
Geode Capital Management, LLC2,830,547$26.4M0.00%+157,566+5.9%Added
Burgundy Asset Management Ltd.2,431,110$22.7M0.25%+75,852+3.2%Added
Kennedy Capital Management, Inc.2,390,886$22.3M0.49%−301,485−11.2%Reduced
Victory Capital Management Inc1,979,308$18.5M0.02%−67,426−3.3%Reduced
Royce & Associates LP1,806,991$16.9M0.16%+168,823+10.3%Added
Northern Trust Corp1,356,321$12.7M0.00%+4,470+0.3%Added
JPMorgan Chase & Co1,162,476$10.9M0.00%+35,129+3.1%Added
Parallax Volatility Advisers, L.P.1,139,705$10.6M0.29%−583,432−33.9%Reduced
Kopion Asset Management, LLC1,087,041$10.2M7.78%+59,426+5.8%Added
Meros Investment Management, LP1,023,880$9.56M4.54%+185,418+22.1%Added
Penn Capital Management Co Inc1,003,959$9.39M0.86%+107,319+12.0%Added
Nordea Investment Management AB990,673$9.32M0.01%−23,874−2.4%Reduced
Charles Schwab Investment Management Inc975,662$9.11M0.00%+16,062+1.7%Added
Norges Bank874,106$8.16M0.00%−101,608−10.4%Reduced
Goldman Sachs Group Inc862,397$8.05M0.00%+469,144+119.3%Added
Silvercrest Asset Management Group LLC817,297$7.63M0.05%−1,637−0.2%Reduced
New York State Common Retirement Fund796,013$7.43M0.01%+68,242+9.4%Added
Morgan Stanley724,134$6.76M0.00%+338,536+87.8%Added
Grizzlyrock Capital, LLC712,630$6.66M5.00%+712,630New
Williams Jones Wealth Management, LLC.711,671$6.65M0.09%−94,625−11.7%Reduced
Frontier Capital Management Co LLC668,327$6.24M0.06%−34,989−5.0%Reduced
Roumell Asset Management, LLC622,511$5.81M12.50%+80,000+14.7%Added
Manatuck Hill Partners, LLC533,291$4.98M2.13%+420,800+374.1%Added
King Luther Capital Management Corp523,709$4.89M0.02%−13,700−2.5%Reduced
Advantage Alpha Capital Partners LP505,655$4.72M0.89%+505,655New
Gsa Capital Partners LLP480,730$4.49M0.38%+480,730New
Scout Investments, Inc.472,523$4.41M0.11%−7,410−1.5%Reduced
Citadel Advisors LLC380,459$3.55M0.00%−173,292−31.3%Reduced
Voya Investment Management LLC360,747$3.37M0.00%−72,883−16.8%Reduced
P.A.W. Capital Corp350,000$3.27M7.93%00.0%Unchanged
Tudor Investment Corp Et Al345,128$3.22M0.04%+114,198+49.5%Added
S Squared Technology, LLC335,746$3.14M1.52%−160,000−32.3%Reduced
Millennium Management LLC305,092$2.85M0.00%−220,229−41.9%Reduced
Credit Suisse AG255,889$2.39M0.00%+26,102+11.4%Added
Ameriprise Financial Inc249,490$2.33M0.00%−596−0.2%Reduced
Swiss National Bank229,500$2.14M0.00%−23,900−9.4%Reduced
Rhumbline Advisers214,749$2.01M0.00%−10,147−4.5%Reduced
Barclays PLC208,916$1.95M0.00%+164,474+370.1%Added
Bank of America Corp202,921$1.90M0.00%+111,389+121.7%Added
Marshall Wace, LLP198,730$1.86M0.00%+198,730New
Jane Street Group, LLC197,237$1.84M0.00%+53,104+36.8%Added
Invesco Ltd.172,670$1.61M0.00%+28,810+20.0%Added
Woodmont Investment Counsel LLC167,297$1.56M0.15%−2,690−1.6%Reduced
UBS Asset Management Americas Inc166,885$1.56M0.00%−465,923−73.6%Reduced
UBS Group AG164,052$1.53M0.00%+145,281+774.0%Added
American Century Companies Inc163,878$1.53M0.00%+69,324+73.3%Added
Perkins Capital Management Inc128,325$1.20M1.02%−5,000−3.8%Reduced
Alliancebernstein L.P.127,151$1.19M0.00%00.0%Unchanged
Advisory Services Network, LLC127,106$1.19M0.03%+2,377+1.9%Added
Knights of Columbus Asset Advisors LLC126,330$1.18M0.08%+63,165+100.0%Added
California State Teachers Retirement System125,973$1.18M0.00%−5,408−4.1%Reduced
Legal & General Group Plc121,407$1.13M0.00%+1,890+1.6%Added
Wells Fargo & Company120,868$1.13M0.00%−41,366−25.5%Reduced
Susquehanna International Group, LLP115,405$1.08M0.00%+72,191+167.1%Added
1492 Capital Management LLC113,268$1.06M0.60%+113,268New
Deutsche Bank AG109,811$1.03M0.00%−9,269−7.8%Reduced
Russell Investments Group, Ltd.107,346$1.00M0.00%+10,330+10.6%Added
Citigroup Inc103,945$970.8K0.00%−17,628−14.5%Reduced
ExodusPoint Capital Management, LP102,610$958.0K0.01%+89,530+684.5%Added
Cerity Partners LLC100,500$938.7K0.00%−27,329−21.4%Reduced
HighTower Advisors, LLC97,386$909.0K0.00%−9,028−8.5%Reduced
Moody National Bank Trust Division92,176$860.9K0.07%00.0%Unchanged
Wedge Capital Management L L P91,080$850.7K0.02%+91,080New
Squarepoint Ops LLC90,514$845.4K0.00%−124,118−57.8%Reduced
Griffin Asset Management, Inc.82,365$769.3K0.10%00.0%Unchanged
Price T Rowe Associates Inc78,581$734.0K0.00%+8,040+11.4%Added
Royal Bank of Canada74,325$694.0K0.00%+25,944+53.6%Added
Stephens Inc71,572$668.5K0.01%−11,616−14.0%Reduced
MetLife Investment Management70,673$660.1K0.00%00.0%Unchanged
American International Group, Inc.67,297$628.6K0.00%+442+0.7%Added
Greenwood Capital Associates LLC66,134$617.7K0.08%−1,122−1.7%Reduced
Manufacturers Life Insurance Company, The66,112$617.5K0.00%+138+0.2%Added
Cinctive Capital Management LP66,009$616.5K0.04%−22,902−25.8%Reduced
Franklin Resources Inc64,724$604.5K0.00%−250.0%Reduced
Ensign Peak Advisors, Inc62,510$583.8K0.00%00.0%Unchanged
Janus Henderson Group PLC59,040$551.7K0.00%−90−0.2%Reduced
Mirae Asset Global Investments Co., Ltd.58,167$543.3K0.00%00.0%Unchanged
Cornercap Investment Counsel Inc57,471$536.8K0.09%+57,471New
Hilton Capital Management, LLC55,700$520.2K0.06%+37,473+205.6%Added
CIBC World Markets Inc.48,656$454.0K0.00%−140−0.3%Reduced
Algert Global LLC48,550$453.5K0.02%00.0%Unchanged
SG Americas Securities, LLC48,350$452.0K0.00%−177,070−78.6%Reduced
Prelude Capital Management, LLC44,972$420.0K0.04%+25,564+131.7%Added
Qube Research & Technologies Ltd44,263$413.4K0.00%−258,684−85.4%Reduced
Versor Investments LP44,000$411.0K0.08%−15,500−26.1%Reduced
Capstone Investment Advisors, LLC42,349$395.5K0.01%+8,833+26.4%Added
First Trust Advisors LP42,209$394.2K0.00%−241,209−85.1%Reduced
Empowered Funds, LLC39,201$366.1K0.01%+1,335+3.5%Added
State Board of Administration of Florida Retirement System38,231$357.1K0.00%00.0%Unchanged