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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, Q4 2021

Institutional positions in Magnite, Inc. as of Dec 31, 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
248
−30 vs. Q3 2021
Shares held
89.6M
−532.7K (−0.6%) vs. Q3 2021
Total value
$1.57B
−$955.6M (−37.9%) vs. Q3 2021
New holders
43
91 more added
Sold out
73
78 more reduced

1 institution that held it in Q3 2021 haven't filed for Q4 2021 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 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 holdersQ4 2021: 248 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 2021: $1.57B
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 2021

Shares, value and share of portfolio for each institution holding Magnite, Inc.; share changes are against Q3 2021.

Institutions holding MGNI in Q4 2021
InstitutionSharesValue% of portfolioChange in sharesAction
Atticus Wealth Management, LLC20$00.00%00.0%Unchanged
Federation des caisses Desjardins du Quebec18$3150.00%00.0%Unchanged
McDonald Partners LLC47$8230.00%+47New
Absolute Capital Management, LLC47$8230.00%+47New
Winch Advisory Services, LLC76$1.00K0.00%00.0%Unchanged
HM Payson & Co40$1.00K0.00%00.0%Unchanged
Duncker Streett & Co Inc52$1.00K0.00%00.0%Unchanged
Versant Capital Management, Inc32$1.00K0.00%00.0%Unchanged
Bell Investment Advisors, Inc45$1.00K0.00%+13+40.6%Added
Motley Fool Asset Management LLC62$1.00K0.00%+62New
Amplius Wealth Advisors, LLC100$1.00K0.00%+100New
Covestor Ltd36$1.00K0.00%+36New
First Horizon Advisors, Inc.141$2.00K0.00%−53−27.3%Reduced
Harel Insurance Investments & Financial Services Ltd.140$2.00K0.00%00.0%Unchanged
SRS Capital Advisors, Inc.138$2.00K0.00%00.0%Unchanged
Harvest Fund Management Co., Ltd134$2.00K0.00%00.0%Unchanged
Rise Advisors, LLC150$2.63K0.00%+150New
Koshinski Asset Management, Inc.160$2.80K0.00%00.0%Unchanged
Manchester Capital Management LLC169$3.00K0.00%+50+42.0%Added
Avion Wealth250$4.00K0.00%00.0%Unchanged
Clearstead Advisors, LLC210$4.00K0.00%00.0%Unchanged
Nelson, Van Denburg & Campbell Wealth Management Group, LLC232$4.00K0.00%00.0%Unchanged
CWM, LLC203$4.00K0.00%+203New
Agf Investments Inc.291$5.00K0.00%+136+87.7%Added
First National Bank of South Miami317$6.00K0.00%00.0%Unchanged
Sofos Investments, Inc.18$7.00K0.00%+18Added
Halpern Financial, Inc.512$8.96K0.00%00.0%Unchanged
Resolute Partners Group500$9.00K0.00%−11,000−95.7%Reduced
Covington Capital Management500$9.00K0.00%00.0%Unchanged
Orion Capital Management LLC500$9.00K0.01%00.0%Unchanged
TCI Wealth Advisors, Inc.500$9.00K0.00%+253+102.4%Added
Pinebridge Investments, L.P.500$9.00K0.00%+500New
Harbour Investments, Inc.565$10.0K0.00%−115−16.9%Reduced
Kistler-Tiffany Companies, LLC604$11.0K0.00%−10−1.6%Reduced
SJS Investment Consulting Inc.600$11.0K0.00%+600New
US Bancorp683$12.0K0.00%−2,534−78.8%Reduced
Proequities, Inc.666$12.0K0.00%+166+33.2%Added
Signaturefd, LLC770$13.0K0.00%+140+22.2%Added
Hudock, Inc.840$14.0K0.00%00.0%Unchanged
Steward Partners Investment Advisory, LLC1,000$18.0K0.00%+1,000New
Next Capital Management LLC1,321$23.0K0.02%+1,321New
American Portfolios Advisors1,321$23.1K0.00%−2−0.2%Reduced
Dark Forest Capital Management LP1,348$24.0K0.01%+1,348New
Eaton Vance Management1,500$26.0K0.00%−1,500−50.0%Reduced
Huntington National Bank1,500$26.0K0.00%00.0%Unchanged
High Net Worth Advisory Group LLC1,750$31.0K0.01%+1,750New
IFP Advisors, Inc1,800$32.0K0.00%00.0%Unchanged
State of Wyoming1,841$32.0K0.01%+308+20.1%Added
Cambridge Trust Co1,900$33.0K0.00%+1,900New
Guinness Atkinson Asset Management Inc2,230$39.0K0.02%00.0%Unchanged
Rockefeller Capital Management L.P.2,386$40.0K0.00%−174−6.8%Reduced
Captrust Financial Advisors2,537$44.0K0.00%−52−2.0%Reduced
The PNC Financial Services Group, Inc.2,848$50.0K0.00%−51−1.8%Reduced
Northwestern Mutual Wealth Management Co3,025$53.0K0.00%+12+0.4%Added
Baldwin Brothers Inc3,000$53.0K0.01%+295+10.9%Added
STRS Ohio3,200$56.0K0.00%−91,900−96.6%Reduced
Whittier Trust Co3,320$58.0K0.00%00.0%Unchanged
Nisa Investment Advisors, LLC4,570$62.0K0.00%−1,530−25.1%Reduced
Shell Asset Management Co4,295$75.0K0.00%−71−1.6%Reduced
Macquarie Group Ltd4,638$81.0K0.00%+89+2.0%Added
Newbridge Financial Services Group, Inc.5,500$96.0K0.05%00.0%Unchanged
Great West Life Assurance Co6,005$105.0K0.00%00.0%Unchanged
Sugarloaf Wealth Management, LLC6,182$108.0K0.03%−200−3.1%Reduced
Whittier Trust Co of Nevada Inc6,842$120.0K0.00%00.0%Unchanged
Amundi8,065$122.0K0.00%00.0%Unchanged
SG3 Management, LLC8,500$149.0K0.02%+8,500New
Lazard Asset Management LLC9,280$162.0K0.00%+9,280New
Point72 Hong Kong Ltd9,440$165.0K0.01%−1,739−15.6%Reduced
Ameritas Investment Partners, Inc.9,955$174.0K0.01%00.0%Unchanged
Prudential Financial Inc10,012$175.0K0.00%−885−8.1%Reduced
Bollard Group LLC10,216$179.0K0.01%00.0%Unchanged
NEXT Financial Group, Inc10,256$179.0K0.01%+756+8.0%Added
Kestra Advisory Services, LLC10,519$184.0K0.00%−2,568−19.6%Reduced
Gabelli Funds LLC10,820$189.0K0.00%00.0%Unchanged
Silvant Capital Management LLC11,104$194.0K0.03%−714−6.0%Reduced
Wolverine Trading, LLC10,941$196.0K0.00%+10,941New
First National Bank11,265$197.0K0.17%−2,000−15.1%Reduced
Seelaus Asset Management LLC11,305$198.0K0.11%00.0%Unchanged
CastleKnight Management LP12,100$212.0K0.08%+12,100New
Truist Financial Corp13,669$239.0K0.00%−3,201−19.0%Reduced
Tower Research Capital LLC (TRC)13,686$239.0K0.00%+5,997+78.0%Added
Campbell & CO Investment Adviser LLC13,700$240.0K0.08%+13,700New
Quadrature Capital Ltd13,855$242.0K0.01%−3,042−18.0%Reduced
Raymond James & Associates14,644$256.0K0.00%+1,284+9.6%Added
Diametric Capital, LP14,802$259.0K0.20%+14,802New
Public Employees Retirement Association of Colorado14,986$262.0K0.00%00.0%Unchanged
Zurcher Kantonalbank (Zurich Cantonalbank)15,374$269.0K0.00%+4,294+38.8%Added
Ensign Peak Advisors, Inc15,630$274.0K0.00%+15,630New
Pearl River Capital, LLC15,759$276.0K0.07%+474+3.1%Added
Gsa Capital Partners LLP15,821$277.0K0.03%+15,821New
Graham Capital Management, L.P.16,213$283.0K0.02%+16,213New
Banque Cantonale Vaudoise17,581$307.0K0.01%+3,407+24.0%Added
Shay Capital LLC17,801$312.0K0.12%−7,247−28.9%Reduced
Cresset Asset Management, LLC18,406$322.0K0.00%+4,813+35.4%Added
Qube Research & Technologies Ltd18,874$330.0K0.00%+18,874New
Leonteq Securities AG18,933$331.3K0.01%−4,397−18.8%Reduced
Natixis19,000$332.0K0.00%+19,000New
Cambridge Investment Research Advisors, Inc.19,849$347.0K0.00%+608+3.2%Added
Advisor Group Holdings, Inc.21,026$368.0K0.00%−3,285−13.5%Reduced
Exchange Traded Concepts, LLC21,401$375.0K0.01%−1,201−5.3%Reduced