WallStreetZenWallStreetZen

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
Ryan HickeCHIEF EXECUTIVE OFFICER2026-01-2917,500$56.54
$989.45kBuy
Ryan HickeCHIEF EXECUTIVE OFFICER2026-01-2917,009$86.75
$1.48MSell
Ryan HickeCHIEF EXECUTIVE OFFICER2026-01-2913,054$88.06
$1.15MSell
Ryan HickeCHIEF EXECUTIVE OFFICER2026-01-2949,937$87.39
$4.36MSell
Ryan HickeCHIEF EXECUTIVE OFFICER2026-01-2912,500$71.12
$889.00kBuy
Ryan HickeCHIEF EXECUTIVE OFFICER2026-01-2912,500$71.12
$889.00kBuy
Ryan HickeCHIEF EXECUTIVE OFFICER2026-01-2917,500$48.47
$848.23kBuy
Ryan HickeCHIEF EXECUTIVE OFFICER2026-01-2920,000$64.43
$1.29MBuy
Alfred P. West Jr.Insider2026-01-013,482$82.02
$285.59kSell
William DoranDirector2025-12-227,000$83.85
$586.95kSell

1 of 7

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

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

SEIC Shareholders

What type of owners hold Sei Investments Co stock?

Institutional
Insider
Retail
NameHoldSharesValueType
Alfred P. West Jr.49.63%60,771,738$4.80BInsider
Thomas W. Smith9.35%11,448,682$904.67MInsider
Vanguard Group Inc9.04%11,071,365$874.86MInstitution
Blackrock Inc7.87%9,637,840$761.58MInstitution
Loomis Sayles Co L P7.14%8,744,634$691.00MInstitution
Morgan Stanley4.15%5,075,178$401.04MInstitution
Carmen Romeo3.59%4,389,535$346.86MInsider
State Street Corp3.50%4,283,065$338.45MInstitution
Geode Capital Management LLC2.36%2,894,317$228.71MInstitution
Lord Abbett Co LLC1.57%1,917,370$151.51MInstitution

1 of 3

SEIC vs Asset Management Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
SEIC45.97%54.03%Net SellingNet Selling
AMG79.52%7.00%Net Buying
JHG35.49%64.51%Net BuyingNet Buying
IVZ54.68%45.32%Net SellingNet Selling
HLNE38.47%61.53%Net 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 58.28% 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 $4.80B.

If you're new to stock investing, here's how to buy Sei Investments Co stock.
©2026 WallStreetZen
Company
AboutNewsBlogStock Investing FAQPlansPrivacy PolicyTerms of ServiceCancellation & RefundsPerformanceHelp GuidesContactTwitterYouTubeNewsletter
Stock Tools
Top Performing AnalystsStock ScreenerStock ForecastTrending StocksStrong Buy StocksHighest Earnings StocksBest Dividend Paying StocksStatisticsStock Market SectorsStock Market IndustriesHow to Buy Stocks Online
Stock Ideas
Buy The DipBiggest Stock Gainers TodayBiggest Stock Losers Today52 Week High Stocks52 Week Low StocksMost Active Stocks TodayMost Undervalued StocksBest Penny Stocks to Buy NowBest Stocks Under $5Best Stocks Under $10
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.