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SEIC insider trading — SEI Investments Co

Over the last 90 days, insiders at SEI Investments Co (SEIC) made 0 open-market purchases worth $0 and 13 open-market sales worth $23.92M, making them net sellers by $23.92M. The largest sale was by Peterson Michael (Executive Vice President), who sold 37,500 shares for $4.18M on Aug 28, 2026.

Updated Oct 16, 2026.

Insider buying · 90d
$0
Insider selling · 90d
$23.92M
Net · 90d
−$23.92M
Last 30 days
0B / 3S

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Recent SEIC insider transactions

Every Form 4 filed by SEI Investments Co officers, directors and 10% owners in the last 90 days, newest first. P = open-market purchase, S = open-market sale; other codes are awards, option exercises, tax withholding or gifts.

Trade dateInsiderRoleTypeOwnershipSharesPriceValueFiling
Sep 30, 2026West Alfred P Jr-S · SaleDirect5,483$103.16$566KForm 4
Sep 29, 2026West Alfred P Jr-S · SaleDirect28,394$103.40$2.94MForm 4
Sep 22, 2026Lane MichaelExecutive Vice PresidentS · SaleDirect2,400$102.78$247KForm 4
Sep 3, 2026Hicke RyanChief Executive OfficerM · Option exerciseDirect37,500$56.98$2.14MForm 4
Sep 3, 2026Hicke RyanChief Executive OfficerS · SaleDirect37,500$110.71$4.15MForm 4
Sep 1, 2026Romeo CarmenDirectorM · Option exerciseDirect5,000$49.63$248KForm 4
Sep 1, 2026Romeo CarmenDirectorS · SaleDirect5,000$109.70$548KForm 4
Aug 28, 2026Peterson MichaelExecutive Vice PresidentM · Option exerciseDirect37,500$56.54$2.12MForm 4
Aug 28, 2026Peterson MichaelExecutive Vice PresidentS · SaleDirect37,500$111.51$4.18MForm 4
Aug 5, 2026Mccabe PhilipSee RemarksM · Option exerciseDirect5,043$49.63$250KForm 4
Aug 5, 2026Mccabe PhilipSee RemarksS · SaleDirect5,043$105.50$532KForm 4
Aug 4, 2026Mccabe PhilipSee RemarksM · Option exerciseDirect24,957$49.63$1.24MForm 4
Aug 4, 2026Mccabe PhilipSee RemarksS · SaleDirect24,957$105.04$2.62MForm 4
Aug 3, 2026Mccarthy KathrynDirectorM · Option exerciseDirect10,000$71.12$711KForm 4
Aug 3, 2026Mccarthy KathrynDirectorS · SaleDirect10,000$103.53$1.04MForm 4
Jul 28, 2026Peterson MichaelExecutive Vice PresidentM · Option exerciseDirect25,000$55.73$1.39MForm 4
Jul 28, 2026Peterson MichaelExecutive Vice PresidentS · SaleDirect25,000$102.05$2.55MForm 4
Jul 28, 2026Warner Mark AndrewSee Remarks*M · Option exerciseDirect15,000$59.17$888KForm 4
Jul 28, 2026Warner Mark AndrewSee Remarks*S · SaleDirect15,000$102.35$1.54MForm 4
Jul 28, 2026Guarino CarlDirectorM · Option exerciseDirect10,000$49.63$496KForm 4
Jul 28, 2026Guarino CarlDirectorS · SaleDirect10,000$103.19$1.03MForm 4
Jul 24, 2026Sharma SanjaySee Remarks*M · Option exerciseDirect20,000$71.12$1.42MForm 4
Jul 24, 2026Sharma SanjaySee Remarks*S · SaleDirect20,000$99.33$1.99MForm 4
Jul 24, 2026Shah Sneha S.See Remarks*F · Tax withholdingDirect3,746$96.73$362KForm 4

SEIC insider trading FAQ

Are insiders buying SEIC stock?

Not on the open market. In the last 90 days, SEI Investments Co insiders made no open-market purchases, and 13 open-market sales totaling $23.92M. Purchases with the insider's own money are generally seen as a stronger signal than sales, which happen for many reasons (taxes, diversification, planned 10b5-1 sales).

Who are the insiders trading SEIC?

Recent sellers: Guarino Carl, Hicke Ryan, Lane Michael, Mccabe Philip, Mccarthy Kathryn, Peterson Michael.

Where does SEIC insider trading data come from?

Every transaction comes from SEC Form 4 filings on EDGAR. Company officers, directors and 10% owners must file a Form 4 within two business days of buying or selling. InsiderBolt reads these filings directly from the SEC.

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Insider trading data is for informational purposes only and is not investment advice. Filings can be amended; always confirm details on SEC EDGAR.