UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ________________________________________ FORM 10-Q ________________________________________ ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2021 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OF 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from_________to ________ Commission File Number: 0-10200 ___________________________________ ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Commission File Number: 0-10200 ________________________________________ ________________________________________ SEI INVESTMENTS COMPANY (Exact name of Registrant as Specified in Its Charter) Washington, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2020 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the tran ...

SEI Investments Company (NASDAQ:SEIC) Q4 2020 Earnings Conference Call January 27, 2021 4:30 PM ET Company Participants Al West - Chairman and CEO Dennis McGonigle - CFO Kathy Heilig - Controller Paul Klauder - EVP, Head of the Institutional Group Steve Meyer - EVP, Head of Global Wealth Management Services Wayne Withrow - EVP, Independent Advisor Solutions by SEI Conference Call Participants Ryan Kenny - Morgan Stanley Chris Donat - Piper Sandler Robert Lee - KBW Chris Shutler - William Blair Owen Lau - Op ...

SEI Investments Company (NASDAQ:SEIC) Q3 2020 Earnings Conference Call October 21, 2020 4:30 PM ET Company Participants Al West - Chairman & Chief Executive Officer Dennis McGonigle - Chief Financial Officer Kathy Heilig - Controller Paul Klauder - Executive Vice President, Head of the Institutional Group Steve Meyer - Executive Vice President, Head of Global Wealth Management Services Wayne Withrow - Executive Vice President, Independent Advisor Solutions by SEI Conference Call Participants Ryan Kenny - Mo ...

SEI Investments Company (NASDAQ:SEIC) Q2 2020 Results Earnings Conference Call July 22, 2020 4:30 PM ET Company Participants Al West - Chairman, Chief Executive Officer Dennis McGonigle - Executive Vice President, Chief Financial Officer Steve Meyer - Executive Vice President, Head of Global Wealth Management Services Wayne Withrow - Executive Vice President, Independent Advisor Solutions by SEI Paul Klauder - Executive Vice President, Head of the Institutional Group Kathy Heilig - Chief Accounting Officer, ...

SEI Investments Company (NASDAQ:SEIC) Q1 2020 Results Conference Call April 23, 2020 4:30 PM ET Company Participants Al West - Chairman and CEO Dennis McGonigle - CFO Kathy Heilig - Controller Steve Meyer - EVP, Head of Global Wealth Management Services Wayne Withrow - Head of Independent Advisor Solutions Paul Klauder - EVP, Head of the Institutional Group Conference Call Participants Chris Shutler - William Blair Robert Lee - KBW Chris Donat - Piper Sandler Glenn Greene - Oppenheimer Sam Hoffman - Lincoln ...

SEI Investments Company (NASDAQ:SEIC) Q3 2019 Earnings Conference Call October 23, 2019 4:30 PM ET Company Participants Al West - Chairman & Chief Executive Officer Dennis McGonigle - Chief Financial Officer Kathy Heilig - Controller Paul Klauder - Executive Vice President & Head-Institutional Group Steve Onofrio - Head of Sales and Service for the Investment Advisors Segment Steve Meyer - Executive Vice President, Head of Global Wealth Management Services Conference Call Participants Robert Lee - KBW Chris ...

SEI Investments Company (NASDAQ:SEIC) Q2 2019 Earnings Conference Call July 24, 2019 4:30 PM ET Company Participants Al West – Chairman and Chief Executive Officer Dennis McGonigle – Chief Financial Officer Steve Meyer – Executive Vice President, Head of Global Wealth Management Services Wayne Withrow – Executive Vice President, Head-Independent Advisor Solutions Kathy Heilig – Vice President, Chief Accounting Officer and Controller Paul Klauder – Executive Vice President and Head-Institutional Group Confer ...

| --- | --- | |-------------------------------------------------------------------------------------|-------------------------| | | | | SEI Investments Company | New ways. New answers." | | Dennis McGonigle, Chief Financial Officer | | | Kathy Heilig, Controller 2019 KBW REAL ESTATE FINANCE & ASSET MANAGEMENT CONFERENCE | | | MAY 30, 2019 | | | | | | | | | | | About SEI Founded in 1968 of innovation and growth | --- | --- | --- | |------------------------|----------------------|----------------------------- ...

SEI Investments Company (NASDAQ:SEIC) Q1 2019 Earnings Conference Call April 24, 2019 4:30 PM ET Company Participants Alfred West - Chairman and Chief Executive Officer Dennis McGonigle - Executive Vice President and Chief Financial Officer Steve Meyer - Executive Vice President, Head of Global Wealth Management Services Wayne Withrow - Executive Vice President, Independent Advisor Solutions by SEI Paul Klauder - Executive Vice President, Head of Institutional Group Kathy Heilig - Chief Accounting Officer a ...