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

Insider buying vs selling

Have Sei Investments Co insiders been buying or selling?

Buy
Sell
NameRoleDateSharesPriceValue
Philip McCabeExecutive Vice President and Head of SEIs Investment Management Business2025-10-2412,000$53.34
$640.08kBuy
Kathryn McCarthyDirector2025-09-2910,000$53.34
$533.40kBuy
Kathryn McCarthyDirector2025-09-2910,000$85.66
$856.60kSell
Carl GuarinoDirector2025-09-2310,000$53.34
$533.40kBuy
Carl GuarinoDirector2025-09-2310,000$86.41
$864.10kSell
Michael LaneExecutive Vice President2025-09-163,935$86.60
$340.77kSell
Ryan HickeCHIEF EXECUTIVE OFFICER2025-08-1917,500$49.63
$868.53kBuy
Ryan HickeCHIEF EXECUTIVE OFFICER2025-08-1935,000$88.30
$3.09MSell
Ryan HickeCHIEF EXECUTIVE OFFICER2025-08-1917,500$49.63
$868.53kBuy
Michael PetersonEXECUTIVE VICE PRESIDENT2025-08-077,089$61.81
$438.17kBuy

1 of 6

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%60,771,090$4.96BInsider
Thomas W. Smith9.35%11,448,682$934.67MInsider
Vanguard Group Inc9.17%11,229,621$916.79MInstitution
Blackrock Inc7.52%9,202,020$751.25MInstitution
Loomis Sayles Co L P7.22%8,841,249$721.80MInstitution
Morgan Stanley4.60%5,634,328$459.99MInstitution
State Street Corp3.88%4,745,485$387.42MInstitution
Carmen Romeo3.60%4,402,769$359.44MInsider
Bank Of America Corp2.58%3,160,636$258.03MInstitution
Beutel Goodman Co Ltd2.12%2,600,616$212.31MInstitution

1 of 3

SEIC vs Asset Management Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
SEIC51.76%48.24%Net SellingNet Buying
IVZ60.82%39.18%Net SellingNet Selling
BEN54.54%44.53%Net BuyingNet Buying
STEP61.00%39.00%Net SellingNet Selling
AMG93.47%6.53%Net BuyingNet Buying

Sei Investments Co Stock Ownership FAQ

Who owns Sei Investments Co?

Sei Investments Co (NASDAQ: SEIC) is owned by 73.42% institutional shareholders, 68.44% 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 $5.01B.

If you're new to stock investing, here's how to buy Sei Investments Co 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.