| Schedule of Changes in Busey’s Outstanding Equity Awards |
Changes in Busey’s outstanding equity awards are presented in the tables below: | | | | | | | | | | | | | | | | | | | RSU Awards | | PSU Awards1 | | DSU Awards | Nonvested at December 31, 2025 | 1,320,537 | | | 525,501 | | | 41,218 | Granted | 287,101 | | | 279,148 | | | 34,655 | Dividend equivalents earned | 22,856 | | | 1,877 | | | 4,163 | Vested | (615,849) | | | (43,283) | | | (45,043) | Forfeited | (94,764) | | | (53,944) | | | — | Nonvested at June 30, 2026 | 919,881 | | | 709,299 | | | 34,993 | | | | | | | Vested and outstanding at June 30, 2026 | — | | | — | | | 191,118 |
___________________________________________ 1.Represents target shares at the grant date. | | | | | | | | | | | | | Options | | SSARs | Outstanding at December 31, 2025 | 15,106 | | | 270,398 | | Exercised | (5,720) | | | (140,232) | | Forfeited | — | | | (1,430) | | Expired | (2,640) | | | — | | Outstanding at June 30, 2026 | 6,746 | | | 128,736 | | | | | | Exercisable at June 30, 2026 | 6,746 | | | 113,328 | |
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| Schedule of Shares Remaining Available for Issuance Under Busey’s Equity Compensation Plans |
Shares remaining available for issuance under Busey’s equity compensation plans as of June 30, 2026, are set forth in the table below: | | | | | | | | | | Plan | | Shares Remaining
Available for Issuance
Pursuant to the Plan | | 2020 Equity Plan | | 2,283,484 | | ESPP | | 236,152 |
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| Schedule of Stock-Based Compensation Expense |
Busey recognized compensation expense related to non-vested equity awards as summarized in the table below: | | | | | | | | | | | | | | | | | | | | | | | | | Three Months Ended June 30, | | Six Months Ended June 30, | | (dollars in thousands) | 2026 | | 2025 | | 2026 | | 2025 | Stock-based compensation expense | | | | | | | | Salaries and employee benefits1 | $ | 2,441 | | | $ | 5,213 | | | $ | 6,371 | | | $ | 8,430 | | Other noninterest expense2 | 123 | | | 220 | | | 329 | | | 397 | | Total stock-based compensation expense | $ | 2,564 | | | $ | 5,433 | | | $ | 6,700 | | | $ | 8,827 | |
___________________________________________ 1.Includes expenses for RSUs, PSUs, SSARs, and the ESPP. 2.Represents expenses for DSU awards.
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| Schedule of Unamortized Stock-Based Compensation Expense |
Unamortized compensation expense related to non-vested equity awards is summarized in the table below: | | | | | | | | | | | | | As of | | (dollars in thousands) | June 30,
2026 | | December 31,
2025 | | | | | | | | | | | | | | | | | | | | | Unamortized stock-based compensation | $ | 22,677 | | | $ | 15,309 | | Weighted average period over which expense is to be recognized on awards issued under Busey's 2020 Equity Plan | 2.1 years | | 1.8 years | Weighted average period over which expense is to be recognized on CrossFirst replacement awards | 11 months | | 1.2 years |
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