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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, Q3 2021

Institutional positions in Magnite, Inc. as of Sep 30, 2021. 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
279
+15 vs. Q2 2021
Shares held
90.1M
+4.77M (+5.6%) vs. Q2 2021
Total value
$2.52B
−$365.5M (−12.7%) vs. Q2 2021
New holders
55
97 more added
Sold out
40
73 more reduced

4 institutions that held it in Q2 2021 haven't filed for Q3 2021 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 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 holdersQ3 2021: 279 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 2021: $2.52B
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 2021

Shares, value and share of portfolio for each institution holding Magnite, Inc.; share changes are against Q2 2021.

Institutions holding MGNI in Q3 2021
InstitutionSharesValue% of portfolioChange in sharesAction
CKW Financial Group15$00.00%+15New
Berman Capital Advisors, LLC10$00.00%+10New
Federation des caisses Desjardins du Quebec18$5040.00%00.0%Unchanged
Bellevue Asset Management, LLC50$1.00K0.00%00.0%Unchanged
HM Payson & Co40$1.00K0.00%00.0%Unchanged
Versant Capital Management, Inc32$1.00K0.00%00.0%Unchanged
Atticus Wealth Management, LLC20$1.00K0.00%00.0%Unchanged
Duncker Streett & Co Inc52$1.00K0.00%+52New
Ellevest, Inc.33$1.00K0.00%+33New
Parallel Advisors, LLC36$1.00K0.00%+36New
Liberty Wealth Management LLC40$1.00K0.00%+40New
Bell Investment Advisors, Inc32$1.00K0.00%+32New
Winch Advisory Services, LLC76$2.00K0.00%−185−70.9%Reduced
Ranger Investment Management, L.P.117$3.00K0.00%00.0%Unchanged
Harvest Fund Management Co., Ltd134$3.00K0.00%00.0%Unchanged
Manchester Capital Management LLC119$3.00K0.00%+119New
FinTrust Capital Advisors, LLC96$3.00K0.00%+96New
Private Capital Group, LLC120$3.00K0.00%+120New
RWM Asset Management, LLC100$3.00K0.00%+100New
SRS Capital Advisors, Inc.138$4.00K0.00%00.0%Unchanged
Agf Investments Inc.155$4.00K0.00%+155New
Harel Insurance Investments & Financial Services Ltd.140$4.00K0.00%+140New
Koshinski Asset Management, Inc.160$4.48K0.00%+160New
First Horizon Advisors, Inc.194$5.00K0.00%−156−44.6%Reduced
Global Wealth Management Investment Advisory, Inc.175$5.00K0.00%00.0%Unchanged
NVWM, LLC225$6.00K0.00%−225−50.0%Reduced
Joseph P. Lucia & Associates, LLC230$6.00K0.00%00.0%Unchanged
Clearstead Advisors, LLC210$6.00K0.00%00.0%Unchanged
Nelson, Van Denburg & Campbell Wealth Management Group, LLC232$6.00K0.00%00.0%Unchanged
MCF Advisors LLC200$6.00K0.00%00.0%Unchanged
Avion Wealth250$7.00K0.00%00.0%Unchanged
TCI Wealth Advisors, Inc.247$7.00K0.00%+101+69.2%Added
JFS Wealth Advisors, LLC250$7.00K0.00%+250New
First National Bank of South Miami317$9.00K0.01%00.0%Unchanged
Sandy Spring Bank454$13.0K0.00%00.0%Unchanged
Covington Capital Management500$14.0K0.00%00.0%Unchanged
Orion Capital Management LLC500$14.0K0.01%00.0%Unchanged
Proequities, Inc.500$14.0K0.00%+500New
Halpern Financial, Inc.512$14.3K0.01%00.0%Unchanged
Bedel Financial Consulting, Inc.539$15.0K0.01%00.0%Unchanged
Kistler-Tiffany Companies, LLC614$17.0K0.00%00.0%Unchanged
TFC Financial Management601$17.0K0.01%00.0%Unchanged
Signaturefd, LLC630$18.0K0.00%−102−13.9%Reduced
Harbour Investments, Inc.680$19.0K0.00%+510+300.0%Added
Hudock, Inc.840$23.0K0.01%00.0%Unchanged
Parkside Financial Bank & Trust1,000$28.0K0.01%00.0%Unchanged
Sofos Investments, Inc.0$28.0K0.02%0New
Creative Financial Designs Inc1,100$31.0K0.01%+250+29.4%Added
Kowal Investment Group, LLC1,167$33.0K0.01%+1,167New
Sterling Investment Advisors, Ltd.1,200$34.0K0.01%00.0%Unchanged
American Portfolios Advisors1,323$37.0K0.00%−45−3.3%Reduced
Huntington National Bank1,500$42.0K0.00%00.0%Unchanged
State of Wyoming1,533$43.0K0.03%−1,741−53.2%Reduced
IFP Advisors, Inc1,800$50.0K0.00%−880−32.8%Reduced
Guinness Atkinson Asset Management Inc2,230$62.0K0.03%00.0%Unchanged
Rockefeller Capital Management L.P.2,560$71.0K0.00%00.0%Unchanged
Captrust Financial Advisors2,589$72.0K0.00%+137+5.6%Added
Geneos Wealth Management Inc.2,600$73.0K0.00%00.0%Unchanged
Baldwin Brothers Inc2,705$76.0K0.01%00.0%Unchanged
The PNC Financial Services Group, Inc.2,899$81.0K0.00%−449−13.4%Reduced
Exane Derivatives2,928$82.0K0.02%+1,085+58.9%Added
Eaton Vance Management3,000$84.0K0.00%00.0%Unchanged
Northwestern Mutual Wealth Management Co3,013$84.0K0.00%00.0%Unchanged
US Bancorp3,217$90.0K0.00%+1,853+135.9%Added
Whittier Trust Co3,320$93.0K0.00%00.0%Unchanged
Shell Asset Management Co4,366$122.0K0.00%−170−3.7%Reduced
Macquarie Group Ltd4,549$127.0K0.00%−814−15.2%Reduced
O'Shaughnessy Asset Management, LLC4,935$138.0K0.00%+852+20.9%Added
Newbridge Financial Services Group, Inc.5,500$154.0K0.10%+1,500+37.5%Added
Walleye Trading LLC5,657$158.0K0.00%−9,004−61.4%Reduced
Great West Life Assurance Co6,005$169.0K0.00%00.0%Unchanged
Nisa Investment Advisors, LLC6,100$171.0K0.00%00.0%Unchanged
Cutler Group LP6,342$177.0K0.01%−10,444−62.2%Reduced
Sugarloaf Wealth Management, LLC6,382$179.0K0.05%00.0%Unchanged
Whittier Trust Co of Nevada Inc6,842$192.0K0.01%00.0%Unchanged
Centiva Capital, LP7,146$201.0K0.02%−2,770−27.9%Reduced
Raymond James Financial Services Advisors, Inc.7,407$207.0K0.00%−3,894−34.5%Reduced
AdvisorNet Financial, Inc7,400$207.0K0.01%+6,400+640.0%Added
Mackenzie Financial Corp7,415$208.0K0.00%+7,415New
Tower Research Capital LLC (TRC)7,689$216.0K0.01%+4,785+164.8%Added
Aigen Investment Management, LP7,864$220.0K0.04%+7,864New
Gluskin Sheff & Assoc Inc8,021$225.0K0.01%+8,021New
Amundi8,065$226.0K0.00%+8,065New
Weil Company, Inc.8,104$227.0K0.12%+8,104New
Pictet Asset Management SA8,300$232.0K0.00%+8,300New
V Wealth Advisors LLC8,500$238.0K0.04%00.0%Unchanged
TownSquare Capital, LLC8,663$243.0K0.01%+8,663New
PEAK6 Investments LLC8,792$246.0K0.00%−34,361−79.6%Reduced
Essex Investment Management Co LLC9,049$253.0K0.03%+9,049New
Creative Planning9,327$261.0K0.00%−3,968−29.8%Reduced
NEXT Financial Group, Inc9,500$266.0K0.02%+928+10.8%Added
Ameritas Investment Partners, Inc.9,955$279.0K0.01%+1,719+20.9%Added
Tocqueville Asset Management L.P.10,000$280.0K0.00%00.0%Unchanged
Golden Green, Inc.10,171$285.0K0.22%−184−1.8%Reduced
Bollard Group LLC10,216$286.0K0.01%00.0%Unchanged
Gabelli Funds LLC10,820$303.0K0.00%00.0%Unchanged
Prudential Financial Inc10,897$305.0K0.00%+2,210+25.4%Added
Zurcher Kantonalbank (Zurich Cantonalbank)11,080$310.0K0.00%00.0%Unchanged
Janus Henderson Group PLC11,109$311.0K0.00%+11,109New
Point72 Hong Kong Ltd11,179$313.0K0.02%+11,179New