Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2026

Fair Value Disclosures [Abstract]

Schedule of Fair Value Of Certain Financial Assets And Liabilities

The fair value of certain financial assets and liabilities of the Company was determined using the following inputs:


						At June 30, 2026
						Level 1						Level 2						Level 3						NAV as a Practical Expedient						Total
Financial Assets
SEI Investments Company
Equity securities						$	69,651					$	—					$	—					$	—					$	69,651
Available-for-sale debt securities						—						141,249						—						—						141,249
Securities owned						—						25,532						—						—						25,532
Investment funds sponsored by LSV						—						—						—						12,922						12,922
Investments in limited partnership funds						—						—						—						777						777
Total financial assets of SEI Investments Company						69,651						166,781						—						13,699						250,131
Consolidated VIEs
Equity securities						130,072						—						—						—						130,072
Total financial assets of consolidated VIEs						130,072						—						—						—						130,072
Total financial assets measured at fair value						$	199,723					$	166,781					$	—					$	13,699					$	380,203

Financial Liabilities
SEI Investments Company
Contingent considerations						$	—					$	—					$	6,736					$	—					$	6,736
Total financial liabilities of SEI Investments Company						—						—						6,736						—						6,736
Consolidated VIEs
Securities sold short						121,036						—						—						—						121,036
Total financial liabilities of consolidated VIEs						121,036						—						—						—						121,036
Total financial liabilities measured at fair value						$	121,036					$	—					$	6,736					$	—					$	127,772


						At December 31, 2025
						Level 1						Level 2						Level 3						NAV as a Practical Expedient						Total
Financial Assets
SEI Investments Company
Equity securities						$	67,414					$	—					$	—					$	—					$	67,414
Available-for-sale debt securities						—						158,690						—						—						158,690
Securities owned						—						33,777						—						—						33,777
Investment funds sponsored by LSV						—						—						—						11,593						11,593
Investments in limited partnership funds						—						—						—						1,158						1,158
Total financial assets of SEI Investments Company
Consolidated VIEs
Equity securities						113,119						—						—						—						113,119
Total financial assets of consolidated VIEs						113,119						—						—						—						113,119
Total financial assets measured at fair value						$	180,533					$	192,467					$	—					$	12,751					$	385,751

Financial Liabilities
SEI Investments Company
Contingent considerations						$	—					$	—					$	7,834					$	—					$	7,834
Total financial liabilities of SEI Investments Company						—						—						7,834						—						7,834
Consolidated VIEs
Securities sold short						108,243						—						—						—						108,243
Total financial liabilities of consolidated VIEs						108,243						—						—						—						108,243
Total financial liabilities measured at fair value						$	108,243					$	—					$	7,834					$	—					$	116,077