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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, Q2 2026

Institutional positions in Magnite, Inc. as of Jun 30, 2026. 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
311
+18 vs. Q1 2026
Shares held
141.9M
+10.4M (+7.9%) vs. Q1 2026
Total value
$2.69B
+$1.13B (+72.2%) vs. Q1 2026
New holders
55
116 more added
Sold out
37
90 more reduced

4 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 2026: 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 holdersQ2 2026: 311 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 heldQ2 2026: $2.69B
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, Q2 2026

Shares, value and share of portfolio for each institution holding Magnite, Inc.; share changes are against Q1 2026.

Institutions holding MGNI in Q2 2026
InstitutionSharesValue% of portfolioChange in sharesAction
Avion Wealth49$00.00%00.0%Unchanged
Navigoe, LLC3$00.00%+3New
DiNuzzo Private Wealth, Inc.1$190.00%00.0%Unchanged
Maryland Capital Advisors Inc.1$190.00%+1New
DecisionPoint Financial, LLC1$210.00%+1New
LRI Investments, LLC2$380.00%+2New
Hughes Financial Services, LLC3$570.00%00.0%Unchanged
HFM Investment Advisors, LLC4$760.00%+4New
Dunhill Financial, LLC4$790.00%00.0%Unchanged
Truvestments Capital LLC5$950.00%00.0%Unchanged
Rialto Wealth Management, LLC7$1330.00%−6−46.2%Reduced
Creative Capital Management Investments LLC7$1330.00%+7New
Massmutual Trust Co FSB11$2090.00%00.0%Unchanged
Ancora Advisors, LLC11$2090.00%00.0%Unchanged
DHJJ Financial Advisors, Ltd.13$2470.00%00.0%Unchanged
Assetmark, Inc18$3420.00%00.0%Unchanged
Buck Wealth Strategies, LLC18$3420.00%+18New
Keating Financial Advisory Services, Inc.20$3800.00%00.0%Unchanged
Cornerstone Financial Management LLC34$6450.00%+34New
Silver Grove Financial Group, Inc.39$7400.00%+39New
Action Point Financial Planning, LLC43$7980.00%+43New
Glen Eagle Advisors, LLC49$9300.00%00.0%Unchanged
JFS Wealth Advisors, LLC50$9490.00%+27+117.4%Added
Duncker Streett & Co Inc52$9870.00%00.0%Unchanged
UMA Financial Services, Inc.53$1.01K0.00%+53New
Federated Hermes, Inc.63$1.20K0.00%−8−11.3%Reduced
CVA Family Office, LLC73$1.39K0.00%+3+4.3%Added
Gill Capital Partners, LLC75$1.42K0.00%00.0%Unchanged
Global Retirement Partners, LLC80$1.52K0.00%+80New
Quarry LP89$1.69K0.00%+89New
Federation des caisses Desjardins du Quebec93$1.76K0.00%+93New
Caitong International Asset Management Co., Ltd99$1.88K0.00%−14,251−99.3%Reduced
Entrust Financial LLC100$1.90K0.00%+100New
Bruce G. Allen Investments, LLC108$2.05K0.00%00.0%Unchanged
SJS Investment Consulting Inc.108$2.05K0.00%+25+30.1%Added
TD Waterhouse Canada Inc.115$2.33K0.00%+115New
Fortitude Family Office, LLC130$2.47K0.00%00.0%Unchanged
True Wealth Design, LLC141$2.68K0.00%+109+340.6%Added
Anchor Investment Management, LLC150$2.85K0.00%00.0%Unchanged
Abound Wealth Management176$3.34K0.00%00.0%Unchanged
Covestor Ltd161$4.00K0.00%+71+78.9%Added
Farther Finance Advisors, LLC308$5.85K0.00%+62+25.2%Added
Colonial Trust Co308$5.88K0.00%00.0%Unchanged
Rothschild Investment LLC383$7.27K0.00%+101+35.8%Added
EverSource Wealth Advisors, LLC450$8.54K0.00%−316−41.3%Reduced
Clearstead Advisors, LLC461$8.75K0.00%+447+3,192.9%Added
Bessemer Group Inc462$9.00K0.00%00.0%Unchanged
Rossby Financial, LCC500$9.49K0.00%00.0%Unchanged
Parallel Advisors, LLC517$9.81K0.00%+233+82.0%Added
CoreCap Advisors, LLC524$9.95K0.00%00.0%Unchanged
Owl Creek Wealth Partners LLC660$12.5K0.00%−285−30.2%Reduced
Evelyn Partners Group Ltd703$13.3K0.00%+703New
Cassaday & Co Wealth Management LLC715$13.6K0.00%00.0%Unchanged
US Bancorp772$14.7K0.00%−404−34.4%Reduced
National Bank of Canada774$14.7K0.00%+774New
Umb Bank N A850$16.1K0.00%00.0%Unchanged
International Assets Investment Management, LLC887$18.0K0.00%+777+706.4%Added
Signaturefd, LLC1,263$24.0K0.00%−109−7.9%Reduced
SBI Securities Co., Ltd.1,276$24.2K0.00%+597+87.9%Added
Larson Financial Group LLC1,291$24.5K0.00%+411+46.7%Added
Nykredit A/S1,306$24.8K0.00%+1,306New
NBC Securities, Inc.1,440$27.3K0.00%00.0%Unchanged
Pinnacle Wealth Planning Services, Inc.1,476$28.0K0.00%00.0%Unchanged
Fifth Third Bancorp1,494$28.4K0.00%−57,329−97.5%Reduced
EFG International AG1,500$28.5K0.00%00.0%Unchanged
SRS Capital Advisors, Inc.1,503$28.5K0.00%+1,331+773.8%Added
Sterling Capital Management LLC1,508$28.6K0.00%+586+63.6%Added
Allworth Financial LP1,567$29.7K0.00%+610+63.7%Added
Smartleaf Asset Management LLC1,749$33.4K0.00%00.0%Unchanged
Strategic Wealth Partners, Ltd.1,849$35.1K0.00%−643−25.8%Reduced
Exchange Traded Concepts, LLC1,895$36.0K0.00%−69−3.5%Reduced
Huntington National Bank2,158$41.0K0.00%−96−4.3%Reduced
GAMMA Investing LLC2,208$41.9K0.00%−346−13.5%Reduced
BNP PARIBAS ASSET MANAGEMENT Holding S.A.2,406$45.7K0.00%−271−10.1%Reduced
Walleye Capital LLC2,449$46.5K0.00%−5,184−67.9%Reduced
Nisa Investment Advisors, LLC3,130$59.4K0.00%−1,448−31.6%Reduced
Harbor Investment Advisory, LLC3,265$62.0K0.00%+3,265New
The PNC Financial Services Group, Inc.3,707$70.4K0.00%−76−2.0%Reduced
Kemnay Advisory Services Inc.4,117$78.1K0.01%+3,375+454.9%Added
Rachor Investment Advisory Services, LLC4,164$79.0K0.04%00.0%Unchanged
Cetera Trust Company, N.A4,270$81.0K0.04%+1,160+37.3%Added
KBC Group NV4,480$85.0K0.00%00.0%Unchanged
Versant Capital Management, Inc4,715$89.5K0.01%−814−14.7%Reduced
Rockefeller Capital Management L.P.4,982$94.6K0.00%+200+4.2%Added
Central Pacific Bank - Trust Division5,000$94.9K0.01%+2,500+100.0%Added
Jones Financial Companies LLLP5,111$95.7K0.00%−1,953−27.6%Reduced
Persistent Asset Partners Ltd5,815$110.4K0.03%+5,815New
Tower Research Capital LLC (TRC)5,850$111.0K0.00%−3,910−40.1%Reduced
Blackhill Capital Inc5,991$113.7K0.00%00.0%Unchanged
Murphy & Mullick Capital Management Corp8,800$167.0K0.10%00.0%Unchanged
1620 Investment Advisors, Inc.9,097$172.7K0.11%−456−4.8%Reduced
Parkside Financial Bank & Trust10,538$200.0K0.01%−275−2.5%Reduced
Advisor Group Holdings, Inc.10,670$202.5K0.00%+957+9.9%Added
Northwest & Ethical Investments L.P.10,662$203.6K0.00%−17,519−62.2%Reduced
Cornerstone Wealth Management, LLC10,920$207.3K0.01%00.0%Unchanged
Intrust Bank NA11,147$211.6K0.02%+11,147New
Cetera Investment Advisers11,190$212.4K0.00%−1,967−15.0%Reduced
M&T Bank Corp11,728$222.1K0.00%+107+0.9%Added
Money Concepts Capital Corp11,969$227.2K0.01%+310+2.7%Added
Truist Financial Corp12,076$229.2K0.00%00.0%Unchanged