SEI Investments Affiliate Alfred P. West, Jr. Files Form 144 to Sell $3.67M in Common Stock

Transaction Overview

On September 29, 2026, affiliate Alfred P. West, Jr. filed a Form 144 notice of proposed sale for 35,000 shares of SEI Investments Co ($SEIC) common stock through broker J.P. Morgan Securities LLC. The estimated market value of the proposed disposition is $3,668,700, implying an average price per share of approximately $104.82.

Historical Context & Holding Background

• Acquisition Origin: The securities to be sold were originally acquired on November 1, 2019, directly from the issuer in a private transaction.
• Past 3 Months Activity: Alfred P. West, Jr. previously sold 57,332 shares in late June 2026, generating gross proceeds of ~$5.00M:
  • June 28, 2026: 50,000 shares for $4,359,685.13
  • June 29, 2026: 7,332 shares for $640,741.28

Impact & Significance

With approximately 120.02 million shares outstanding, this proposed sale represents approximately 0.03% of the company's total outstanding equity. While the percentage of the company being liquidated is minor and unlikely to cause material dilution or float disruption, the transaction represents a notable dollar value ($3.67M) from a prominent company insider and founder, warranting Medium trading significance.