FIRST BUSEY CORP /NV/

The 2020 Equity Plan was originally approved by stockholders at the 2020 Annual Meeting of Stockholders. A description of the 2020 Equity Plan, as originally approved, can be found in Appendix A within Busey’s Proxy Statement for the 2020 Annual Meeting of Stockholders filed on April 9, 2020. An amendment and restatement of the 2020 Equity Plan was approved by stockholders at the 2023 Annual Meeting of Stockholders. Terms of the amended and restated 2020 Equity Plan are substantially identical to those of the originally approved 2020 Equity Plan, other than a 1,350,000 increase in the number of shares authorized for issuance under the plan. More information can be found in Appendix A within Busey’s Proxy Statement for the 2023 Annual Meeting of Stockholders filed on April 14, 2023.

Busey has granted RSU, PSU, and DSU awards under the terms of its 2020 Equity Plan. A description of RSU, PSU, and DSU awards granted in 2025 under the terms of the 2020 Equity Plan is provided below. A description of RSU, PSU, and DSU awards granted in 2024 and 2023 under the terms of the 2020 Equity Plan can be found in Busey’s Annual Reports for the years ended December 31, 2024, and 2023, respectively.

Upon vesting and delivery, shares are expected, though not required, to be issued from treasury stock. Busey issued 437,670 treasury shares in conjunction with the settlement in 2025 of RSUs, PSUs, and DSUs that were awarded under the 2020 Equity Plan. The difference between the number of shares issued and the number of vested units is due to shares issued under a net share settlement option. There were 658,552 shares available for issuance under the 2020 Equity Plan as of December 31, 2025.

RSU Awards

Busey grants RSU awards to members of management periodically throughout the year. RSU awards are stock-based awards for which vesting is conditional upon meeting established service criteria. Each RSU represents the future right to receiveone share of Busey’s common stock. Recipients earn quarterly dividend equivalents on their respective RSUs, which entitle the recipients to additional units. Therefore, dividends earned each quarter compound based upon the updated unit balances.

On March 26, 2025, under the terms of the 2020 Equity Plan, Busey granted 348,269 RSUs to members of management. The grant date fair value of the award was $7.7 million, which will be recognized as compensation expense over the requisite service period. These awards will vest in equal installments over three years, on each anniversary of the grant date. The terms of these awards included an accelerated vesting provision upon eligible retirement from Busey, after aone-year minimum requisite service period.

On May 29, 2025, under the terms of the 2020 Equity Plan, Busey granted 4,494 RSUs to members of management. The grant date fair value of the award was $0.1 million, which will be recognized as compensation expense over the requisite service period. These awards will vest in equal installments over three years, on each anniversary of the grant date.

On July 23, 2025, under the terms of the 2020 Equity Plan, Busey granted 13,724 RSUs to members of management. The grant date fair value of the award was $0.3 million, which will be recognized as compensation expense over the requisite service period. These awards will vest on July 23, 2028.

On October 8, 2025, under the terms of the 2020 Equity Plan, Busey granted 21,395 RSUs to a member of management. The grant date fair value of the award was $0.5 million, which will be recognized as compensation expense over the requisite service period. These awards will vest on October 8, 2028.

First Busey Corporation(BUSE) | 2025 —160

A summary of changes in Busey’s RSU awards for the year ended December 31, 2025, is presented in the following table: