Financial Highlights and Global Operations Overview

Forward looking statements. This document contains forward-looking statements within the meaning of the rules and regulations of the Securities and Exchange Commission. In some cases you can identify forward-looking statements by the words “may,” “will,” “expect," "plan," "believe," "maintain,” “continue” or “appear.” Our forward-looking statements include discussions about future initiatives, opportunities, solutions, platforms, operations, strategies and financial results, including: whether our position in the financial services industry will enable us to meet client needs, capture growth, or create shareholder value, our commitments to and plans for social responsibility and sustainable investing, our focus on long-term growth and initiatives and strategies for growth, the rate of our investments in innovation, our focus on focus on sustainable growth in earnings-per-share, generating recurring revenue and predictable cash flows, maintaining a strong balance sheet and returning capital through dividends and stock buy-backs, the timing of our introduction, if any, of new capabilities, platforms or solutions and the success of these endeavors, whether we will pursue acquisitions or derive any benefits from acquisitions, the elements of our business model, our ability to unlock the power and potential of our assets, the elements of our One SEI mindset and strategy and the degree to which we may develop these elements, our ability to adapt to changing market, and the degree to which our strategies will create opportunities for growth and value. You should not place undue reliance on our forward-looking statements as they are based on the current beliefs and expectations of our management and subject to significant risks and uncertainties many of which are beyond our control or are subject to change. Although we believe the assumptions upon which we base our forward- looking statements are reasonable, they could be inaccurate. Some of the risks and important factors that could cause actual results to differ from those described in our forward-looking statements can be found in the "Risk Factors" section of our Annual Report on Form 10-K for the year ended December 31, 2020, filed with the Securities and Exchange Commission and available on our website at https://www.seic.com/investor-relations and on the Securities and Exchange Commission's website (www.sec.gov). There may be additional risks that we do not presently know or that we currently believe are immaterial which could also cause actual results to differ from those contained in our forward-looking statements. We do not undertake to update the forward-looking statements to reflect the impact of circumstances or events that may arise after the date of the forward-looking statements. sel ©2021 SEI 20

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