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NASDAQ: SEIC
Sei Investments Co Stock Ownership - Who owns Sei Investments Co?

OverviewForecastEarningsRevenueDividendOwnership

Insider buying vs selling

Have Sei Investments Co insiders been buying or selling?

Buy
Sell
NameRoleDateSharesPriceValue
Alfred P. West Jr.Insider2026-01-013,482$82.02
$285.59kSell
William DoranDirector2025-12-227,000$83.85
$586.95kSell
Mark Andrew WarnerInsider2025-12-05379$81.25
$30.79kSell
Alfred P. West Jr.Executive Chairman2025-12-051,100$81.25
$89.38kSell
Philip McCabeOfficer2025-12-051,094$81.25
$88.89kSell
Kathryn McCarthyDirector2025-12-0524$81.25
$1.95kSell
Michael PetersonEXECUTIVE VICE PRESIDENT2025-12-051,063$81.25
$86.37kSell
Philip McCabeExecutive Vice President and Head of SEIs Investment Management Business.2025-12-0412,000$53.34
$640.08kBuy
Philip McCabeExecutive Vice President and Head of SEIs Investment Management Business.2025-12-0412,000$81.11
$973.32kSell
Alfred P. West Jr.Executive Chairman2025-12-0324,770$80.87
$2.00MSell

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Net Insider Buy/Sell (L12M) Ownership

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SEIC Shareholders

What type of owners hold Sei Investments Co stock?

Institutional
Insider
Retail
NameHoldSharesValueType
Alfred P. West Jr.49.63%60,771,738$5.04BInsider
Thomas W. Smith9.35%11,448,682$950.36MInsider
Vanguard Group Inc9.20%11,260,591$934.74MInstitution
Blackrock Inc7.57%9,262,602$768.89MInstitution
Loomis Sayles Co L P7.33%8,976,049$745.10MInstitution
Morgan Stanley4.57%5,593,742$464.34MInstitution
State Street Corp3.71%4,536,582$376.58MInstitution
Carmen Romeo3.59%4,389,535$364.38MInsider
Bank Of America Corp2.55%3,121,067$259.08MInstitution
Geode Capital Management LLC2.27%2,784,343$231.13MInstitution

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SEIC vs Asset Management Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
SEIC51.27%48.73%Net SellingNet Buying
IVZ59.68%40.32%Net SellingNet Selling
AMG93.40%6.60%Net BuyingNet Buying
BEN51.57%44.37%Net BuyingNet Buying
STEP61.89%38.11%Net SellingNet Selling
View Top Asset Management Stocks

Sei Investments Co Stock Ownership FAQ

Who owns Sei Investments Co?

Sei Investments Co (NASDAQ: SEIC) is owned by 72.08% institutional shareholders, 68.50% Sei Investments Co insiders, and 0.00% retail investors. Alfred P. West Jr. is the largest individual Sei Investments Co shareholder, owning 60.77M shares representing 49.63% of the company. Alfred P. West Jr.'s Sei Investments Co shares are currently valued at $5.28B.

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