| Redeemable Noncontrolling Interest |
Changes in the Company's redeemable non-controlling interests are as follows: | | | | | | | | | | | Redeemable Non-controlling Interests | Balance, December 31, 2025 | | $ | 243,959 | | | Increase from acquisition | | 10,400 | | | Net income attributable to non-controlling interests | | 5,087 | | | Capital contributions from non-controlling interests, net | | 889 | | | | | | Redemption value remeasurement | | 50,692 | | Balance, June 30, 2026 | | $ | 311,027 | |
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| Schedule of Calculation of Basic and Diluted Earnings Per Share |
The calculations of basic and diluted earnings per share for the three and six months ended June 30, 2026 and 2025 are: | | | | | | | | | | | | | | | | | | | | | | | | | | Three Months Ended June 30, | | Six Months Ended June 30, | | | 2026 | | 2025 | | 2026 | | 2025 | | Net income | $ | 199,540 | | | $ | 227,083 | | | $ | 376,327 | | | $ | 378,600 | | | Less: Net income attributable to non-controlling interests | 3,882 | | | — | | | 6,182 | | | — | | | Net income attributable to SEI Investments Company | $ | 195,658 | | | $ | 227,083 | | | $ | 370,145 | | | $ | 378,600 | | | Shares used to compute basic earnings per common share | 120,339,000 | | | 124,470,000 | | | 120,999,000 | | | 125,516,000 | | | Dilutive effect of stock awards | 2,995,000 | | | 2,808,000 | | | 2,915,000 | | | 2,848,000 | | | Shares used to compute diluted earnings per common share | 123,334,000 | | | 127,278,000 | | | 123,914,000 | | | 128,364,000 | | | Basic earnings per common share | $ | 1.63 | | | $ | 1.82 | | | $ | 3.06 | | | $ | 3.02 | | | Diluted earnings per common share | $ | 1.59 | | | $ | 1.78 | | | $ | 2.99 | | | $ | 2.95 | |
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