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

Insider buying vs selling

Have Magnite Inc insiders been buying or selling?

Buy
Sell
NameRoleDateSharesPriceValue
Adam Lee SorocaCHIEF PRODUCT OFFICER2026-02-1821,529$12.00
$258.35kSell
Aaron SaltzCHIEF LEGAL OFFICER2026-02-1512,761$11.70
$149.30kSell
Sean Patrick BuckleyPresident Revenue2026-02-1526,942$11.70
$315.22kSell
Adam Lee SorocaCHIEF PRODUCT OFFICER2026-02-1518,933$11.70
$221.52kSell
David DayCHIEF FINANCIAL OFFICER2026-02-1530,617$11.70
$358.22kSell
Katie Seitz EvansPresident Operations2026-02-1527,428$11.70
$320.91kSell
Brian GephartCHIEF ACCOUNTING OFFICER2026-02-156,149$11.70
$71.94kSell
David BuonaseraCHIEF TECHNOLOGY OFFICER2026-02-1517,137$11.70
$200.50kSell
Michael G. BarrettCEO2026-02-1523,549$11.70
$275.52kSell
David DayCHIEF FINANCIAL OFFICER2026-01-0935,169$16.17
$568.68kSell

1 of 11

MGNI insiders have sold more... subscribe to Premium to read more.
Net Insider Buy/Sell (L12M) Ownership

Be the first to know when MGNI insiders and whales buy or sell their stock.

MGNI Shareholders

What type of owners hold Magnite Inc stock?

Institutional
Insider
Retail
NameHoldSharesValueType
Sumant Mandal11.94%17,102,338$239.43MInsider
Vanguard Group Inc10.34%14,802,630$207.24MInstitution
Capital Research Global Investors9.02%12,920,289$180.88MInstitution
Blackrock Inc8.09%11,593,249$162.31MInstitution
Wellington Management Group LLP6.03%8,629,238$120.81MInstitution
Fmr LLC4.68%6,701,174$93.82MInstitution
Clearstone Venture Partners Iiia LP3.89%5,570,406$77.99MInsider
American Century Companies Inc3.69%5,286,928$74.02MInstitution
News Corp3.31%4,746,349$66.45MInsider
Boston Partners2.87%4,108,893$57.52MInstitution

1 of 3

MGNI vs Advertising Agency Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
MGNI77.26%22.74%Net SellingNet Selling
QMMM1.15%0.00%
CMPR34.12%65.88%Net SellingNet Selling
STGW18.41%81.59%Net SellingNet Selling
ZD92.34%7.66%Net SellingNet Buying

Magnite Stock Ownership FAQ

Who owns Magnite?

Magnite (NASDAQ: MGNI) is owned by 95.37% institutional shareholders, 28.08% Magnite insiders, and 0.00% retail investors. Sumant Mandal is the largest individual Magnite shareholder, owning 17.10M shares representing 11.94% of the company. Sumant Mandal's Magnite shares are currently valued at $241.66M.

If you're new to stock investing, here's how to buy Magnite stock.
WallStreetZen does not provide financial advice and does not issue recommendations or offers to buy stock or sell any security.

Information is provided 'as-is' and solely for informational purposes and is not advice. WallStreetZen does not bear any responsibility for any losses or damage that may occur as a result of reliance on this data.