BlackRock, Inc. has filed an updated Schedule 13G/A with the SEC, revealing its beneficial ownership of 7.9% in SEI Investments Company. This update, filed on October 27, 2026, signifies BlackRock's ongoing commitment to investing in the financial services sector, particularly in security brokers, dealers, and flotation companies.

Background

BlackRock, Inc. (CIK: 0002012383) is a leading global investment management firm incorporated in Delaware. The company is categorized under the SIC code 6211, which pertains to security brokers, dealers, and flotation companies. BlackRock trades on the New York Stock Exchange under the ticker symbol BLK. Its recent filings include multiple Schedule 13G/A submissions on the same date, indicating active management of its investment portfolio.

What the Filing Says

The filing states that BlackRock beneficially owns 9,446,264 shares of SEI Investments Company, representing 7.9% of the total outstanding common stock. BlackRock has sole voting power over 9,177,477 shares and sole dispositive power over all shares owned. The filing specifies, "This Schedule 13G reflects the securities beneficially owned by certain business units of BlackRock, Inc. and its subsidiaries and affiliates." This indicates a strategic investment approach by BlackRock to enhance its influence in the financial services industry.

Impact

This significant stake in SEI Investments may affect various stakeholders, including shareholders and potential investors. Given BlackRock's status as a major player in the investment management sector, its ownership could influence SEI's future corporate strategies and decisions. The filing also highlights that no one person has more than a 5% interest in SEI’s common stock, indicating a diversified ownership structure.

What's Next

The filing does not specify what happens next regarding BlackRock's investment in SEI Investments Company. However, the ongoing monitoring of ownership stakes and potential future filings could provide insights into BlackRock's strategic intentions.