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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, Q1 2025

Institutional positions in Magnite, Inc. as of Mar 31, 2025. 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
293
+10 vs. Q4 2024
Shares held
132.9M
+13.4M (+11.2%) vs. Q4 2024
Total value
$1.52B
−$386.8M (−20.3%) vs. Q4 2024
New holders
52
104 more added
Sold out
42
97 more reduced

3 institutions that held it in Q4 2024 haven't filed for Q1 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 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 holdersQ1 2025: 293 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 heldQ1 2025: $1.52B
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, Q1 2025

Shares, value and share of portfolio for each institution holding Magnite, Inc.; share changes are against Q4 2024.

Institutions holding MGNI in Q1 2025
InstitutionSharesValue% of portfolioChange in sharesAction
TFC Financial Management1$120.00%00.0%Unchanged
Runnymede Capital Advisors, Inc.2$230.00%+2New
WealthTrak Capital Management LLC5$580.00%+5New
IFP Advisors, Inc6$680.00%−987−99.4%Reduced
DHJJ Financial Advisors, Ltd.13$1490.00%00.0%Unchanged
Tradewinds Capital Management, LLC20$2290.00%+20New
HM Payson & Co40$4570.00%00.0%Unchanged
Bell Investment Advisors, Inc40$4570.00%+40New
Hexagon Capital Partners LLC46$5250.00%00.0%Unchanged
Glen Eagle Advisors, LLC49$5590.00%00.0%Unchanged
Duncker Streett & Co Inc52$5930.00%00.0%Unchanged
Federation des caisses Desjardins du Quebec58$6620.00%−200−77.5%Reduced
Stephens Consulting, LLC60$6850.00%+60New
National Bank of Canada69$7830.00%+69New
Lindbrook Capital, LLC71$8100.00%+20+39.2%Added
First Horizon Advisors, Inc.78$8890.00%00.0%Unchanged
Quadrant Capital Group LLC86$9820.00%−35−28.9%Reduced
GWM Advisors LLC87$9930.00%00.0%Unchanged
Massmutual Trust Co FSB92$1.05K0.00%+92New
South State Corp.100$1.14K0.00%+100New
CIBC Private Wealth Group, LLC138$1.24K0.00%+23+20.0%Added
Bruce G. Allen Investments, LLC118$1.35K0.00%+17+16.8%Added
Bay Harbor Wealth Management, LLC135$1.54K0.00%+44+48.4%Added
CoreCap Advisors, LLC147$1.68K0.00%+147New
Pineridge Advisors LLC149$1.70K0.00%+45+43.3%Added
Bryn Mawr Trust Co152$1.73K0.00%−22−12.6%Reduced
McIlrath & Eck, LLC160$1.83K0.00%00.0%Unchanged
Abound Wealth Management176$2.01K0.00%00.0%Unchanged
Richard W. Paul & Associates, LLC197$2.25K0.00%+90+84.1%Added
Clearstead Advisors, LLC210$2.40K0.00%00.0%Unchanged
Park Square Financial Group, LLC215$2.45K0.00%+99+85.3%Added
Principal Securities, Inc.175$2.79K0.00%00.0%Unchanged
Rothschild Investment LLC245$2.79K0.00%+90+58.1%Added
Allworth Financial LP269$3.29K0.00%+13+5.1%Added
GAMMA Investing LLC333$3.80K0.00%+296+800.0%Added
Sterling Capital Management LLC353$4.03K0.00%−34,405−99.0%Reduced
Colonial Trust Co394$4.57K0.00%−14−3.4%Reduced
EverSource Wealth Advisors, LLC431$4.92K0.00%+357+482.4%Added
Raleigh Capital Management Inc.451$5.15K0.00%+145+47.4%Added
SRS Capital Advisors, Inc.454$5.18K0.00%+454New
Parallel Advisors, LLC463$5.32K0.00%+144+45.1%Added
Boston Private Wealth LLC508$5.80K0.00%+508New
Fortitude Family Office, LLC566$6.46K0.00%00.0%Unchanged
Optiver Holding B.V.592$6.75K0.00%00.0%Unchanged
Heck Capital Advisors, LLC592$6.75K0.00%00.0%Unchanged
Ronald Blue Trust, Inc.609$6.95K0.00%00.0%Unchanged
Evelyn Partners Investment Management Services Ltd703$8.02K0.00%00.0%Unchanged
CWM, LLC760$9.00K0.00%+313+70.0%Added
Coldstream Capital Management Inc793$9.05K0.00%+793New
Y.D. More Investments Ltd800$9.13K0.00%00.0%Unchanged
Umb Bank N A916$10.5K0.00%−731−44.4%Reduced
Caitong International Asset Management Co., Ltd1,028$11.7K0.01%+1,028New
US Bancorp1,166$13.3K0.00%+815+232.2%Added
Clear Street Markets LLC1,364$15.6K0.01%+1,364New
NBC Securities, Inc.1,428$16.0K0.00%+1,427+142,700.0%Added
Banque Cantonale Vaudoise1,369$16.0K0.00%+1,369New
SBI Securities Co., Ltd.1,404$16.0K0.00%−141−9.1%Reduced
Versant Capital Management, Inc1,446$16.5K0.00%+1,225+554.3%Added
HighMark Wealth Management LLC1,500$17.1K0.01%00.0%Unchanged
MAI Capital Management1,594$18.2K0.00%00.0%Unchanged
The PNC Financial Services Group, Inc.1,626$18.6K0.00%+3+0.2%Added
Signaturefd, LLC1,668$19.0K0.00%−325−16.3%Reduced
Nisa Investment Advisors, LLC1,675$19.1K0.00%−195−10.4%Reduced
Quarry LP1,872$21.4K0.01%+1,872New
MCF Advisors LLC2,200$25.1K0.00%+2,100+2,100.0%Added
Huntington National Bank2,310$26.4K0.00%+153+7.1%Added
Covestor Ltd2,419$28.0K0.02%+814+50.7%Added
Smartleaf Asset Management LLC2,810$32.6K0.00%+1,203+74.9%Added
Northwestern Mutual Wealth Management Co3,000$34.2K0.00%00.0%Unchanged
Tower Research Capital LLC (TRC)3,122$35.1K0.00%−2,783−47.1%Reduced
AllSquare Wealth Management LLC3,580$40.8K0.02%+1,555+76.8%Added
Leonteq Securities AG3,931$44.8K0.00%+2,053+109.3%Added
Amalgamated Bank4,336$49.0K0.00%+15+0.3%Added
Smithfield Trust Co5,930$67.0K0.00%+1,660+38.9%Added
KBC Group NV5,943$68.0K0.00%00.0%Unchanged
Larson Financial Group LLC6,108$69.7K0.00%+2,461+67.5%Added
Farther Finance Advisors, LLC6,643$75.7K0.00%+6,550+7,043.0%Added
1620 Investment Advisors, Inc.7,004$79.9K0.06%+507+7.8%Added
Walleye Trading LLC7,220$82.4K0.00%−4,789−39.9%Reduced
Murphy & Mullick Capital Management Corp7,285$83.1K0.08%00.0%Unchanged
Group One Trading, L.P.9,370$106.9K0.00%−178,250−95.0%Reduced
FDx Advisors, Inc.10,110$115.0K0.04%+10,110New
Aster Capital Management (DIFC) Ltd7,422$117.0K0.02%+7,422New
Intrust Bank NA10,444$119.2K0.01%−2,796−21.1%Reduced
Amundi12,291$119.2K0.00%−2,649−17.7%Reduced
Jones Financial Companies LLLP10,317$119.6K0.00%+4,464+76.3%Added
Brinker Capital Investments, LLC10,673$121.8K0.00%+10,673New
Orion Portfolio Solutions, LLC10,673$121.8K0.00%+10,673New
Gabelli Funds LLC10,820$123.5K0.00%00.0%Unchanged
Avantax Advisory Services, Inc.10,871$124.0K0.00%−327−2.9%Reduced
Cornerstone Wealth Management, LLC10,920$124.6K0.01%00.0%Unchanged
Graham Capital Management, L.P.11,182$127.6K0.00%−68,577−86.0%Reduced
Patriot Financial Group Insurance Agency, LLC11,195$127.7K0.02%+11,195New
Diametric Capital, LP11,247$128.3K0.15%−3,974−26.1%Reduced
Blackhill Capital Inc11,622$132.6K0.01%00.0%Unchanged
Parkside Financial Bank & Trust11,690$133.4K0.02%+1,804+18.2%Added
1858 Wealth Management, LLC12,605$143.8K0.12%+12,605New
Shell Asset Management Co12,936$148.0K0.01%+10,937+547.1%Added
HCR Wealth Advisors13,000$148.3K0.02%00.0%Unchanged
Ameritas Investment Partners, Inc.13,162$150.2K0.01%00.0%Unchanged