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SEI Investments Co. insider trading

This tab shows only the shares insiders bought or sold on the open market in the last twelve months (Form 4 codes P and S). Grants, option exercises, shares held back for tax and gifts are left out on purpose, so what is left is insiders trading at the market price like anyone else.

In the last twelve months insiders at SEI Investments Co. filed 40 open-market sales worth $53.6 million and 0 open-market purchases, on Form 4 with the SEC. The latest: West Alfred P Jr, Insider, sold 5,483 shares at $103.16 on 30 September 2026, filed 1 October 2026.

TradedInsiderRoleTypeSharesPriceValueFiling
30 September 2026West Alfred P JrInsiderSale5,483$103.16$565,637Form 4
29 September 2026West Alfred P JrInsiderSale28,394$103.40$2.9 millionForm 4
22 September 2026Lane MichaelExecutive Vice PresidentSale2,400$102.78$246,672Form 4
3 September 2026Hicke RyanChief Executive OfficerSale37,500$110.71$4.2 millionForm 4
1 September 2026Romeo CarmenDirectorSale5,000$109.70$548,500Form 4
28 August 2026Peterson MichaelExecutive Vice PresidentSale37,500$111.51$4.2 millionForm 4
5 August 2026Mccabe PhilipSee RemarksSale5,043$105.50$532,036Form 4
4 August 2026Mccabe PhilipSee RemarksSale24,957$105.04$2.6 millionForm 4
3 August 2026Mccarthy KathrynDirectorSale10,000$103.53$1.0 millionForm 4
28 July 2026Warner Mark AndrewSee Remarks*Sale2,300$101.11$232,542Form 4
28 July 2026Warner Mark AndrewSee Remarks*Sale5,300$102.01$540,658Form 4
28 July 2026Warner Mark AndrewSee Remarks*Sale7,400$102.97$761,993Form 4
28 July 2026Peterson MichaelExecutive Vice PresidentSale25,000$102.05$2.6 millionForm 4
28 July 2026Guarino CarlDirectorSale10,000$103.19$1.0 millionForm 4
24 July 2026Sharma SanjaySee Remarks*Sale20,000$99.33$2.0 millionForm 4
29 June 2026West Alfred P JrInsiderSale5,652$87.18$492,741Form 4
29 June 2026West Alfred P JrInsiderSale1,680$88.09$147,991Form 4
26 June 2026West Alfred P JrInsiderSale46,162$87.21$4.0 millionForm 4
26 June 2026West Alfred P JrInsiderSale3,838$87.67$336,477Form 4
9 June 2026Doran WilliamDirectorSale5,000$90.50$452,500Form 4
4 May 2026Mccarthy KathrynDirectorSale10,000$91.07$910,700Form 4
28 April 2026Warner Mark AndrewIn RemarksSale4,000$91.16$364,640Form 4
23 April 2026Mccabe PhilipSee RemarksSale15,000$91.82$1.4 millionForm 4
23 April 2026Sharma SanjaySee Remarks*Sale23,441$90.08$2.1 millionForm 4
23 April 2026Sharma SanjaySee Remarks*Sale1,559$90.73$141,448Form 4
23 April 2026Peterson MichaelEXECUTIVE VICE PRESIDENTSale10,000$90.00$900,000Form 4
11 March 2026West Alfred P JrInsiderSale6,076$79.11$480,672Form 4
11 March 2026West Alfred P JrInsiderSale1,371$79.94$109,598Form 4
10 March 2026West Alfred P JrInsiderSale178$78.88$14,041Form 4
10 March 2026West Alfred P JrInsiderSale25,391$79.97$2.0 millionForm 4
10 March 2026West Alfred P JrInsiderSale29,431$80.47$2.4 millionForm 4
25 February 2026Warner Mark AndrewInsiderSale4,000$81.74$326,960Form 4
29 January 2026Hicke RyanCHIEF EXECUTIVE OFFICERSale17,009$86.75$1.5 millionForm 4
29 January 2026Hicke RyanCHIEF EXECUTIVE OFFICERSale49,937$87.39$4.4 millionForm 4
29 January 2026Hicke RyanCHIEF EXECUTIVE OFFICERSale13,054$88.06$1.1 millionForm 4
22 December 2025Doran WilliamDirectorSale7,000$83.85$586,950Form 4
4 December 2025Mccabe PhilipSee RemarksSale12,000$81.11$973,320Form 4
3 December 2025West Alfred P JrExecutive ChairmanSale24,770$80.87$2.0 millionForm 4
12 November 2025Peterson MichaelEXECUTIVE VICE PRESIDENTSale25,000$84.21$2.1 millionForm 4
11 November 2025Romeo CarmenDirectorSale5,000$84.01$420,050Form 4

A filing with several lines appears once per line.

Source

Form 4 filings on EDGAR for SEI Investments Co.: the company's filing index.

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