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Disclosery

MGNI MAGNITE INC

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Stock (common), issuer CIK 1595974

300 managers (304 13F filers) reported a position in MGNI shares at 2025-12-31, 136,686,964 shares in all. 46 filers opened a position and 55 filers sold out during the quarter.

Managers
300
13F filers
304
New
46
Added
122
Reduced
93
Sold out
55
Shares held by filers
136,686,964

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

The latest Form 4 transactions, non-derivative.
OwnerDateSharesPriceFiling
Caine Pauldirector2026-10-12-12,500 S$25.29Form 4

13F holders, Q4 2025

Filers in the available 13F reports with a share position at 2025-12-31, 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
XPONANCE LLC11,096$180K<0.01%+11213F-HRTimeline
Cornerstone Wealth Management, LLC10,920$177K0.01%013F-HRTimeline
Harbour Capital Advisors, LLC11,000$177K0.04%new13F-HRTimeline
Versor Investments LP10,800$175K0.03%new13F-HRTimeline
Parkside Financial Bank & Trust9,412$153K0.01%-5213F-HRTimeline
1620 INVESTMENT ADVISORS, INC.8,953$145K0.1%+15013F-HRTimeline
Murphy & Mullick Capital Management Corp8,800$143K0.1%013F-HRTimeline
Rockefeller Capital Management L.P.in group Rockefeller Capital Managemen…8,402$136K<0.01%+7,13613F-HR/ATimelineGroup
Steward Partners Investment Advisory, L…7,460$121K<0.01%+7,42013F-HRTimeline
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…7,072$115K<0.01%-3,68213F-HRTimelineGroup
Clearstead Advisors, LLC6,531$106K<0.01%+4,30413F-HRTimeline
Bayforest Capital Ltd6,415$104K0.08%+21413F-HRTimeline
BLACKHILL CAPITAL INC5,991$97.2K0.01%-5,63113F-HRTimeline
JONES FINANCIAL COMPANIES LLLPin group JONES FINANCIAL COMPANIES LLLP5,491$89.1K<0.01%-61213F-HRTimelineGroup
GROUP ONE TRADING LLC5,347$86.8K<0.01%-104,96813F-HRTimeline
FNY Investment Advisers, LLC4,775$77K0.02%+4,76113F-HRTimeline
State of Wyoming4,600$74.7K0.01%+2,82613F-HRTimeline
KBC Group NVin group KBC Group NV4,480$73K<0.01%013F-HRTimelineGroup
AMALGAMATED BANK4,400$71K<0.01%+6413F-HRTimeline
Rachor Investment Advisory Services, LLC4,164$67.6K0.04%13F-HRTimeline
Smartleaf Asset Management LLC3,678$60.5K<0.01%+1,82413F-HRTimeline
AdvisorNet Financial, Inc3,500$56.8K<0.01%new13F-HRTimeline
Smithfield Trust Co3,240$52K<0.01%-90013F-HRTimeline
NORTHWESTERN MUTUAL WEALTH MANAGEMENT COin group NORTHWESTERN MUTUAL INVESTMEN…3,201$52K<0.01%+20113F-HR/ATimelineGroup
Cetera Trust Company, N.A3,110$50.5K0.03%-6,75013F-HRTimeline
CWM, LLCin group CWM, LLC2,581$42K<0.01%+51213F-HRTimelineGroup
Central Pacific Bank - Trust Division2,500$40.6K<0.01%new13F-HRTimeline
Strategic Wealth Partners, Ltd.2,492$40.4K<0.01%+7013F-HRTimeline
HUNTINGTON NATIONAL BANKin group HUNTINGTON NATIONAL BANK2,268$36.8K<0.01%+7913F-HRTimelineGroup
GAMMA Investing LLC2,085$33.8K<0.01%+27513F-HRTimeline
Strategic Advocates LLC1,920$31.6K0.01%-213F-HRTimeline
NISA INVESTMENT ADVISORS, LLC1,869$30.3K<0.01%-91113F-HRTimeline
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…1,834$29.8K<0.01%-59413F-HRTimelineGroup
LANARK FINANCIAL, INC.1,551$25.2K<0.01%+23213F-HRTimeline
MCF Advisors LLC1,500$24.3K<0.01%013F-HRTimeline
EFG International AGin group EFG International AG1,500$24.3K<0.01%13F-HRTimelineGroup
Pinnacle Wealth Planning Services, Inc.1,476$24K<0.01%new13F-HRTimeline
Versant Capital Management, Inc1,381$22.4K<0.01%+29613F-HRTimeline
SIGNATUREFD, LLC1,171$19K<0.01%013F-HRTimeline
US BANCORP \DE\in group US BANCORP \DE\1,134$18.4K<0.01%-46213F-HRTimelineGroup
MAI Capital Management1,082$17.6K<0.01%-26213F-HRTimeline
Larson Financial Group LLC1,030$16.7K<0.01%+10013F-HRTimeline
Sterling Capital Management LLC901$14.6K<0.01%+56213F-HRTimeline
UMB Bank, n.a.849$13.8K<0.01%+413F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
SBI Securities Co., Ltd.845$13.7K<0.01%+1713F-HRTimeline
Evelyn Partners Investment Management S…in group Evelyn Partners Group Ltd703$11.4K<0.01%013F-HRTimelineGroup
Torren Management, LLC541$8.78K<0.01%13F-HRTimeline
Fortitude Family Office, LLC524$8.51K<0.01%-5113F-HRTimeline
Rossby Financial, LCC500$8.12K<0.01%013F-HRTimeline
BESSEMER GROUP INCin group BESSEMER GROUP INC462$8K<0.01%013F-HRTimelineGroup
Allworth Financial LP444$7.21K<0.01%-12113F-HRTimeline
Raleigh Capital Management Inc.385$6.25K<0.01%-4713F-HRTimeline
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…384$6.23K<0.01%-1713F-HRTimelineGroup
CoreCap Advisors, LLC381$6.18K<0.01%+7113F-HRTimeline
Colonial Trust Co / SCin group Colonial Trust Advisors308$5.07K<0.01%+12313F-HRTimelineGroup
Lloyd Advisory Services, LLC.301$4.88K<0.01%new13F-HRTimeline
Parallel Advisors, LLC284$4.61K<0.01%-8213F-HRTimeline
MTM Investment Management, LLC275$4.46K<0.01%-1,37113F-HRTimeline
Optiver Holding B.V.in group Optiver Holding B.V.196$3.18K<0.01%-22813F-HRTimelineGroup
ROTHSCHILD INVESTMENT LLC181$2.94K<0.01%-3913F-HRTimeline
Abound Wealth Management176$2.86K<0.01%013F-HRTimeline
FLAGSHIP HARBOR ADVISORS, LLC175$2.84K<0.01%new13F-HRTimeline
McIlrath & Eck, LLC160$2.6K<0.01%013F-HRTimeline
Farther Finance Advisors, LLC152$2.47K<0.01%-6,33013F-HRTimeline
Anchor Investment Management, LLC150$2.44K<0.01%013F-HRTimeline
Richard W. Paul & Associates, LLC147$2.39K<0.01%013F-HRTimeline
CIBC Private Wealth Group LLCin group CIBC Bancorp USA Inc.131$2.13K<0.01%+8013F-HRTimelineGroup
Arax Advisory Partners111$1.8K<0.01%-2813F-HRTimeline
INTERNATIONAL ASSETS INVESTMENT MANAGEM…110$1.78K<0.01%new13F-HRTimeline
Bay Harbor Wealth Management, LLC108$1.75K<0.01%-1313F-HRTimeline
Bruce G. Allen Investments, LLC96$1.56K<0.01%-213F-HRTimeline
Root Financial Partners, LLC82$1.33K<0.01%+2313F-HRTimeline
Global Retirement Partners, LLC80$1.3K<0.01%-3,20013F-HRTimeline
True Wealth Design, LLC66$1.07K<0.01%new13F-HRTimeline
ORG Partners LLC65$1.05K<0.01%013F-HRTimeline
Covestor Ltd90$1K<0.01%013F-HRTimeline
DUNCKER STREETT & CO INC52$844<0.01%013F-HRTimeline
Hughes Financial Services, LLC51$828<0.01%013F-HRTimeline
IFP Advisors, Inc49$795<0.01%+4313F-HRTimeline
Glen Eagle Advisors, LLC49$795<0.01%013F-HRTimeline
Westside Investment Management, Inc.45$730<0.01%new13F-HRTimeline
Basecamp Wealth Advisors LLC41$665<0.01%13F-HRTimeline
Bare Financial Services, Inc34$552<0.01%new13F-HRTimeline
QUADRANT CAPITAL GROUP LLC33$536<0.01%new13F-HRTimeline
Bell Investment Advisors, Inc30$487<0.01%new13F-HRTimeline
Physician Wealth Advisors, Inc.20$325<0.01%new13F-HRTimeline
Keating Financial Advisory Services, In…19$308<0.01%13F-HRTimeline
ASSETMARK, INCin group ASSETMARK, INC18$292<0.01%-36713F-HRTimelineGroup
Essential Partners LLC17$276<0.01%-913F-HRTimeline
DiNuzzo Private Wealth, Inc.15$244<0.01%new13F-HRTimeline
Atlantic Private Wealth, LLC15$243<0.01%new13F-HRTimeline
JFS WEALTH ADVISORS, LLC14$228<0.01%-413F-HRTimeline
DHJJ Financial Advisors, Ltd.13$211<0.01%013F-HRTimeline
Ancora Advisors LLCin group Ancora Advisors LLC11$179<0.01%013F-HRTimelineGroup
SJS Investment Consulting Inc.8$130<0.01%+613F-HRTimeline
Rialto Wealth Management, LLC7$114<0.01%+413F-HRTimeline
Truvestments Capital LLC5$81<0.01%013F-HRTimeline
Dunhill Financial, LLC4$68<0.01%new13F-HRTimeline
HFM Investment Advisors, LLC4$65<0.01%+313F-HRTimeline
Avion Wealth49$00%013F-HRTimelineValue filed as zero, left out of ratios.

Events

  • Caine Paul sold 12,500 MGNI shares on 2026-10-12, Form 4 filed 2026-10-14. 0001411765-26-000011

    Accepted , ingested