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Disclosery

MGNI MAGNITE INC

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Stock (common), issuer CIK 1595974

303 managers (311 13F filers) reported a position in MGNI shares at 2026-06-30, 141,876,194 shares in all. 50 filers opened a position and 37 filers sold out during the quarter.

Managers
303
13F filers
311
New
50
Added
116
Reduced
90
Sold out
37
Shares held by filers
141,876,194

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q2 2026

Filers in the available 13F reports with a share position at 2026-06-30, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
HCR Wealth Advisors13,000$247K0.02%013F-HRTimeline
NEUBERGER BERMAN GROUP LLCin group NEUBERGER BERMAN GROUP LLC12,916$245K<0.01%new13F-HRTimelineGroup
Ledgewood Wealth Advisors, LLC12,577$239K0.13%013F-HRTimeline
TRUIST FINANCIAL CORPin group TRUIST FINANCIAL CORP12,076$229K<0.01%013F-HRTimelineGroup
MONEY CONCEPTS CAPITAL CORP11,969$227K0.01%+31013F-HRTimeline
M&T Bank Corpin group M&T Bank Corp11,728$222K<0.01%+10713F-HRTimelineGroup
Cetera Investment Advisers11,190$212K<0.01%-1,96713F-HRTimeline
INTRUST BANK NA11,147$212K0.02%new13F-HRTimeline
Cornerstone Wealth Management, LLC10,920$207K0.01%013F-HRTimeline
Northwest & Ethical Investments L.P.10,662$204K<0.01%-17,51913F-HRTimeline
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.10,670$203K<0.01%+95713F-HRTimelineGroup
Parkside Financial Bank & Trust10,538$200K0.01%-27513F-HRTimeline
1620 INVESTMENT ADVISORS, INC.9,097$173K0.11%-45613F-HRTimeline
Murphy & Mullick Capital Management Corp8,800$167K0.1%013F-HRTimeline
BLACKHILL CAPITAL INC5,991$114K<0.01%013F-HRTimeline
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…5,850$111K<0.01%-3,91013F-HRTimelineGroup
Persistent Asset Partners Ltd5,815$110K0.03%new13F-HRTimeline
JONES FINANCIAL COMPANIES LLLPin group JONES FINANCIAL COMPANIES LLLP5,111$95.7K<0.01%-1,95313F-HRTimelineGroup
Central Pacific Bank - Trust Division5,000$94.9K0.01%+2,50013F-HRTimeline
Rockefeller Capital Management L.P.in group Rockefeller Capital Managemen…4,982$94.6K<0.01%+20013F-HRTimelineGroup
Versant Capital Management, Inc4,715$89.5K0.01%-81413F-HRTimeline
KBC Group NVin group KBC Group NV4,480$85K<0.01%013F-HRTimelineGroup
Cetera Trust Company, N.A4,270$81K0.04%+1,16013F-HRTimeline
Rachor Investment Advisory Services, LLC4,164$79K0.04%013F-HRTimeline
Kemnay Advisory Services Inc.4,117$78.1K0.01%+3,37513F-HRTimeline
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…3,707$70.4K<0.01%-7613F-HRTimelineGroup
HARBOR INVESTMENT ADVISORY, LLC3,265$62K<0.01%new13F-HRTimeline
NISA INVESTMENT ADVISORS, LLC3,130$59.4K<0.01%-1,44813F-HRTimeline
Walleye Capital LLCgroup of 2 filers holding2,449$46.5K-184,578Timeline
BNP PARIBAS ASSET MANAGEMENT Holding S.…in group BNP PARIBAS ASSET MANAGEMENT …2,406$45.7K<0.01%-27113F-HRTimelineGroup
GAMMA Investing LLC2,208$41.9K<0.01%-34613F-HRTimeline
HUNTINGTON NATIONAL BANKin group HUNTINGTON NATIONAL BANK2,158$41K<0.01%-9613F-HRTimelineGroup
EXCHANGE TRADED CONCEPTS, LLC1,895$36K<0.01%-6913F-HR/ATimeline
Strategic Wealth Partners, Ltd.1,849$35.1K<0.01%-64313F-HRTimeline
Smartleaf Asset Management LLC1,749$33.4K<0.01%013F-HRTimeline
Allworth Financial LP1,567$29.7K<0.01%+61013F-HRTimeline
Sterling Capital Management LLC1,508$28.6K<0.01%+58613F-HRTimeline
Arax Advisory Partners1,503$28.5K<0.01%+1,33113F-HRTimeline
EFG International AGin group EFG International AG1,500$28.5K<0.01%013F-HRTimelineGroup
FIFTH THIRD BANCORPin group FIFTH THIRD BANK, NATIONAL AS…1,494$28.4K<0.01%-57,32913F-HRTimelineGroup
Pinnacle Wealth Planning Services, Inc.1,476$28K<0.01%013F-HRTimeline
LANARK FINANCIAL, INC.1,440$27.3K<0.01%013F-HRTimeline
Nykredit A/Sin group Nykredit A/S1,306$24.8K<0.01%13F-HR/ATimelineGroup
Larson Financial Group LLC1,291$24.5K<0.01%+41113F-HRTimeline
SBI Securities Co., Ltd.1,276$24.2K<0.01%+59713F-HRTimeline
SIGNATUREFD, LLC1,263$24K<0.01%-10913F-HRTimeline
INTERNATIONAL ASSETS INVESTMENT MANAGEM…887$18K<0.01%+77713F-HRTimeline
UMB Bank, n.a.850$16.1K<0.01%013F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
NATIONAL BANK OF CANADA /FI/in group NATIONAL BANK OF CANADA /FI/774$14.7K<0.01%new13F-HRTimelineGroup
US BANCORP \DE\in group US BANCORP \DE\772$14.7K<0.01%-40413F-HRTimelineGroup
Cassaday & Co Wealth Management LLC715$13.6K<0.01%013F-HRTimeline
Evelyn Partners Group Ltdin group Evelyn Partners Group Ltd703$13.3K<0.01%13F-HRTimelineGroup
Owl Creek Wealth Partners LLC660$12.5K<0.01%-28513F-HRTimeline
CoreCap Advisors, LLC524$9.95K<0.01%013F-HRTimeline
Parallel Advisors, LLC517$9.81K<0.01%+23313F-HRTimeline
Rossby Financial, LCC500$9.49K<0.01%013F-HRTimeline
BESSEMER GROUP INCin group BESSEMER GROUP INC462$9K<0.01%013F-HRTimelineGroup
Clearstead Advisors, LLC461$8.75K<0.01%+44713F-HRTimeline
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…450$8.54K<0.01%-31613F-HRTimelineGroup
ROTHSCHILD INVESTMENT LLC383$7.27K<0.01%+10113F-HRTimeline
Colonial Trust Co / SCin group Colonial Trust Advisors308$5.88K<0.01%013F-HRTimelineGroup
Farther Finance Advisors, LLC308$5.85K<0.01%+6213F-HRTimeline
Covestor Ltd161$4K<0.01%+7113F-HRTimeline
Abound Wealth Management176$3.34K<0.01%013F-HRTimeline
Anchor Investment Management, LLC150$2.85K<0.01%013F-HRTimeline
True Wealth Design, LLC141$2.68K<0.01%+10913F-HRTimeline
Fortitude Family Office, LLC130$2.47K<0.01%013F-HRTimeline
TD Waterhouse Canada Inc.115$2.33K<0.01%new13F-HRTimeline
SJS Investment Consulting Inc.108$2.05K<0.01%+2513F-HRTimeline
Bruce G. Allen Investments, LLC108$2.05K<0.01%013F-HRTimeline
ENTRUST FINANCIAL LLC100$1.9K<0.01%new13F-HRTimeline
Caitong International Asset Management …99$1.88K<0.01%-14,25113F-HRTimeline
Federation des caisses Desjardins du Qu…93$1.76K<0.01%new13F-HRTimeline
Quarry LP89$1.69K<0.01%new13F-HRTimeline
Global Retirement Partners, LLC80$1.52K<0.01%13F-HRTimeline
GILL CAPITAL PARTNERS, LLC75$1.42K<0.01%013F-HRTimeline
CVA Family Office, LLC73$1.39K<0.01%+313F-HRTimeline
FEDERATED HERMES, INC.in group FEDERATED HERMES, INC.63$1.2K<0.01%-813F-HRTimelineGroup
Physician Wealth Advisors, Inc.53$1.01K<0.01%new13F-HRTimeline
DUNCKER STREETT & CO INC52$987<0.01%013F-HRTimeline
JFS WEALTH ADVISORS, LLC50$949<0.01%+2713F-HRTimeline
Glen Eagle Advisors, LLC49$930<0.01%013F-HRTimeline
FIDUCIARY FINANCIAL ADVISORS43$798<0.01%new13F-HRTimeline
Silver Grove Financial Group, Inc.39$740<0.01%new13F-HRTimeline
Cornerstone Financial Management LLC34$645<0.01%new13F-HR/ATimeline
Keating Financial Advisory Services, In…20$380<0.01%013F-HRTimeline
ASSETMARK, INCin group ASSETMARK, INC18$342<0.01%013F-HRTimelineGroup
Buck Wealth Strategies, LLC18$342<0.01%new13F-HRTimeline
DHJJ Financial Advisors, Ltd.13$247<0.01%013F-HRTimeline
MassMutual Private Wealth & Trust, FSB11$209<0.01%013F-HRTimeline
Ancora Advisors LLCin group Ancora Advisors LLC11$209<0.01%013F-HRTimelineGroup
Creative Capital Management Investments…7$133<0.01%new13F-HRTimeline
Rialto Wealth Management, LLC7$133<0.01%-613F-HRTimeline
Truvestments Capital LLC5$95<0.01%013F-HRTimeline
Dunhill Financial, LLC4$79<0.01%013F-HRTimeline
HFM Investment Advisors, LLC4$76<0.01%new13F-HRTimeline
Hughes Financial Services, LLC3$57<0.01%013F-HRTimeline
LRI Investments, LLC2$38<0.01%new13F-HRTimeline
DecisionPoint Financial, LLC1$21<0.01%new13F-HRTimeline
MARYLAND CAPITAL ADVISORS INC.1$19<0.01%13F-HRTimeline
DiNuzzo Private Wealth, Inc.1$19<0.01%013F-HRTimeline
Avion Wealth49$00%013F-HRTimelineValue filed as zero, left out of ratios.
Navigoe, LLC3$00%new13F-HRTimelineValue filed as zero, left out of ratios.