NASDAQ: MGNI
Magnite Inc Stock Ownership - Who owns Magnite?

Insider buying vs selling

Have Magnite Inc insiders been buying or selling?

Buy
Sell
NameRoleDateSharesPriceValue
Aaron SaltzCHIEF LEGAL OFFICER2026-01-0915,026$16.17
$242.97kSell
Adam Lee SorocaCHIEF PRODUCT OFFICER2026-01-0925,330$16.17
$409.59kSell
David DayCHIEF FINANCIAL OFFICER2026-01-0935,169$16.17
$568.68kSell
Michael G. BarrettCEO2026-01-09109,742$16.17
$1.77MSell
David BuonaseraCHIEF TECHNOLOGY OFFICER2026-01-0912,330$16.17
$199.38kSell
Katie Seitz EvansPresident Operations2026-01-0926,836$16.17
$433.94kSell
Sean Patrick BuckleyPresident Revenue2026-01-0930,369$16.17
$491.07kSell
Adam Lee SorocaCHIEF PRODUCT OFFICER2025-12-1716,656$17.00
$283.15kSell
Adam Lee SorocaCHIEF PRODUCT OFFICER2025-12-1716,656$4.92
$81.95kBuy
Sean Patrick BuckleyPresident Revenue2025-11-242,213$14.50
$32.09kSell

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Net Insider Buy/Sell (L12M) Ownership

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MGNI Shareholders

What type of owners hold Magnite Inc stock?

Institutional
Insider
Retail
NameHoldSharesValueType
Fmr LLC11.93%17,141,014$193.35MInstitution
Sumant Mandal11.91%17,102,338$192.91MInsider
Vanguard Group Inc10.20%14,654,432$165.30MInstitution
Blackrock Inc7.95%11,413,155$128.74MInstitution
Capital Research Global Investors4.86%6,982,861$78.77MInstitution
Clearstone Venture Partners Iiia LP3.88%5,570,406$62.83MInsider
Wellington Management Group LLP3.58%5,144,549$58.03MInstitution
News Corp3.30%4,746,349$53.54MInsider
American Century Companies Inc3.20%4,594,070$51.82MInstitution
Boston Partners3.10%4,449,004$50.18MInstitution

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MGNI vs Advertising Agency Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
MGNI77.35%22.65%Net SellingNet Selling
CMPR34.24%65.76%Net SellingNet Selling
ZD92.40%7.60%Net SellingNet Selling
STGW17.69%82.31%Net BuyingNet Buying
DLX84.37%4.98%Net SellingNet Selling

Magnite Stock Ownership FAQ

Who owns Magnite?

Magnite (NASDAQ: MGNI) is owned by 96.05% institutional shareholders, 28.12% Magnite insiders, and 0.00% retail investors. Sumant Mandal is the largest individual Magnite shareholder, owning 17.10M shares representing 11.91% of the company. Sumant Mandal's Magnite shares are currently valued at $193.09M.

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