BUSE

SEC source: 0000314489-25-000087 · wk-form4_1741125051.xml · nonDerivative · entry 1

Bowe Monica L · CIK 0001799211 · EVP Chief Risk Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 57,664

F1 · shares: Pursuant to that certain Agreement and Plan of Merger entered into on August 26, 2024, between Issuer and CrossFirst Bankshares, Inc., at the effective time of the merger, each outstanding Issuer performance-based restricted stock unit award tied to Core Return on Average Tangible Common Equity (each, an "Issuer ROATCE PSU") was deemed earned, assuming the achievement of the applicable performance goals as of immediately prior to the effective time based on actual performance through December 31, 2024, and remains subject to the same terms and conditions (including service-based vesting terms but excluding performance-based vesting terms) as applied to the Issuer ROATCE PSU immediately prior to the effective time of the merger.

SEC source: 0000314489-25-000080 · wk-form4_1741120949.xml · nonDerivative · entry 4

RAUCKMAN KEVIN · CIK 0001239788 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · Kevin S. Rauckman Trust

Disclosed balance after: 250

F3 · shares: Pursuant to the Merger Agreement, at the effective time of the merger, each issued and outstanding share of Series A Non-Cumulative Perpetual Preferred Stock, par value $0.01, of CrossFirst was converted into the right to receive one share of Series A Non-Cumulative Perpetual Preferred Stock, par value $0.001, of Issuer.

SEC source: 0000314489-25-000080 · wk-form4_1741120949.xml · nonDerivative · entry 3

RAUCKMAN KEVIN · CIK 0001239788 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · Kevin S. Rauckman Trust

Disclosed balance after: 24,909

F1 · shares: Acquired pursuant to that certain Agreement and Plan of Merger (the "Merger Agreement") entered into on August 26, 2024, between Issuer and CrossFirst Bankshares, Inc. ("CrossFirst"). Pursuant to the Merger Agreement, at the effective time of the merger, CrossFirst merged with and into Issuer with Issuer surviving the merger, and each share of common stock, par value $0.01 per share, of CrossFirst outstanding immediately prior to the effective time of the merger, other than certain excluded shares, was converted into the right to receive (a) 0.6675 shares of common stock, par value $0.001, of Issuer and (b) cash in lieu of fractional shares.

SEC source: 0000314489-25-000080 · wk-form4_1741120949.xml · nonDerivative · entry 2

RAUCKMAN KEVIN · CIK 0001239788 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 17,954

F2 · shares: Pursuant to the Merger Agreement, at the effective time of the merger, each CrossFirst restricted stock award held by a CrossFirst non-employee director was converted into the right to receive (a) 0.6675 shares of common stock, par value $0.001, of Issuer and (b) cash in lieu of fractional shares.

SEC source: 0000314489-25-000080 · wk-form4_1741120949.xml · nonDerivative · entry 1

RAUCKMAN KEVIN · CIK 0001239788 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,551

F1 · shares: Acquired pursuant to that certain Agreement and Plan of Merger (the "Merger Agreement") entered into on August 26, 2024, between Issuer and CrossFirst Bankshares, Inc. ("CrossFirst"). Pursuant to the Merger Agreement, at the effective time of the merger, CrossFirst merged with and into Issuer with Issuer surviving the merger, and each share of common stock, par value $0.01 per share, of CrossFirst outstanding immediately prior to the effective time of the merger, other than certain excluded shares, was converted into the right to receive (a) 0.6675 shares of common stock, par value $0.001, of Issuer and (b) cash in lieu of fractional shares.

SEC source: 0000314489-25-000079 · wk-form4_1741120901.xml · derivative · entry 10

Maddox Mike · CIK 0001776678 · Director · President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 15,257

Underlying: Common Stock · 15,257 shares

Expires 2028-05-01

F6 · shares: Pursuant to the Merger Agreement, at the effective time of the merger, each CrossFirst stock-settled stock appreciation right ("CrossFirst SAR") outstanding immediately prior to the effective time of the merger was converted into a stock appreciation right in respect of Issuer common stock par value $0.001, relating to the number of shares of Issuer common stock equal to the product of (A) the number of shares of CrossFirst common stock subject to such CrossFirst SAR immediately prior to the closing of the merger, multiplied by (B) 0.6675 shares of common stock, par value $0.001, of Issuer ("Exchange Ratio"), with any fractional shares rounded down to the nearest whole share of Issuer common stock, and at an exercise price per share equal to (i) the exercise price per share of the CrossFirst SAR immediately prior to the effective time of the merger, divided by (ii) the Exchange Ratio, rounded up to the nearest whole cent.

SEC source: 0000314489-25-000079 · wk-form4_1741120901.xml · derivative · entry 9

Maddox Mike · CIK 0001776678 · Director · President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 40,050

Underlying: Common Stock · 40,050 shares

Expires 2033-07-26

F6 · shares: Pursuant to the Merger Agreement, at the effective time of the merger, each CrossFirst stock-settled stock appreciation right ("CrossFirst SAR") outstanding immediately prior to the effective time of the merger was converted into a stock appreciation right in respect of Issuer common stock par value $0.001, relating to the number of shares of Issuer common stock equal to the product of (A) the number of shares of CrossFirst common stock subject to such CrossFirst SAR immediately prior to the closing of the merger, multiplied by (B) 0.6675 shares of common stock, par value $0.001, of Issuer ("Exchange Ratio"), with any fractional shares rounded down to the nearest whole share of Issuer common stock, and at an exercise price per share equal to (i) the exercise price per share of the CrossFirst SAR immediately prior to the effective time of the merger, divided by (ii) the Exchange Ratio, rounded up to the nearest whole cent.

SEC source: 0000314489-25-000079 · wk-form4_1741120901.xml · derivative · entry 8

Maddox Mike · CIK 0001776678 · Director · President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 38,142

Underlying: Common Stock · 38,142 shares

Expires 2028-01-24

F6 · shares: Pursuant to the Merger Agreement, at the effective time of the merger, each CrossFirst stock-settled stock appreciation right ("CrossFirst SAR") outstanding immediately prior to the effective time of the merger was converted into a stock appreciation right in respect of Issuer common stock par value $0.001, relating to the number of shares of Issuer common stock equal to the product of (A) the number of shares of CrossFirst common stock subject to such CrossFirst SAR immediately prior to the closing of the merger, multiplied by (B) 0.6675 shares of common stock, par value $0.001, of Issuer ("Exchange Ratio"), with any fractional shares rounded down to the nearest whole share of Issuer common stock, and at an exercise price per share equal to (i) the exercise price per share of the CrossFirst SAR immediately prior to the effective time of the merger, divided by (ii) the Exchange Ratio, rounded up to the nearest whole cent.

SEC source: 0000314489-25-000079 · wk-form4_1741120901.xml · derivative · entry 7

Maddox Mike · CIK 0001776678 · Director · President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 17,292

Underlying: Common Stock · 17,292 shares

Expires 2030-06-01

F6 · shares: Pursuant to the Merger Agreement, at the effective time of the merger, each CrossFirst stock-settled stock appreciation right ("CrossFirst SAR") outstanding immediately prior to the effective time of the merger was converted into a stock appreciation right in respect of Issuer common stock par value $0.001, relating to the number of shares of Issuer common stock equal to the product of (A) the number of shares of CrossFirst common stock subject to such CrossFirst SAR immediately prior to the closing of the merger, multiplied by (B) 0.6675 shares of common stock, par value $0.001, of Issuer ("Exchange Ratio"), with any fractional shares rounded down to the nearest whole share of Issuer common stock, and at an exercise price per share equal to (i) the exercise price per share of the CrossFirst SAR immediately prior to the effective time of the merger, divided by (ii) the Exchange Ratio, rounded up to the nearest whole cent.

SEC source: 0000314489-25-000079 · wk-form4_1741120901.xml · nonDerivative · entry 6

Maddox Mike · CIK 0001776678 · Director · President

10b5-1 filing: No plan indicated

Ownership: Indirect · Spouse

Disclosed balance after: 100

F4 · shares: Pursuant to the Merger Agreement, at the effective time of the merger, each issued and outstanding share of Series A Non-Cumulative Perpetual Preferred Stock, par value $0.01, of CrossFirst was converted into the right to receive one share of Series A Non-Cumulative Perpetual Preferred Stock, par value $0.001, of Issuer.

F5 · shares: The reporting person disclaims beneficial ownership of these securities, and this report shall not be deemed an admission that the reporting person is the beneficial owner of the securities for purposes of Section 16 or for any other purpose.

SEC source: 0000314489-25-000079 · wk-form4_1741120901.xml · nonDerivative · entry 5

Maddox Mike · CIK 0001776678 · Director · President

10b5-1 filing: No plan indicated

Ownership: Indirect · Spouse

Disclosed balance after: 4,739

F1 · shares: Acquired pursuant to that certain Agreement and Plan of Merger (the "Merger Agreement") entered into on August 26, 2024, between Issuer and CrossFirst Bankshares, Inc. ("CrossFirst"). Pursuant to the Merger Agreement, at the effective time of the merger, CrossFirst merged with and into Issuer with Issuer surviving the merger, and each share of common stock, par value $0.01 per share, of CrossFirst outstanding immediately prior to the effective time of the merger, other than certain excluded shares, was converted into the right to receive (a) 0.6675 shares of common stock, par value $0.001, of Issuer and (b) cash in lieu of fractional shares.

F5 · shares: The reporting person disclaims beneficial ownership of these securities, and this report shall not be deemed an admission that the reporting person is the beneficial owner of the securities for purposes of Section 16 or for any other purpose.

SEC source: 0000314489-25-000079 · wk-form4_1741120901.xml · nonDerivative · entry 4

Maddox Mike · CIK 0001776678 · Director · President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 50

F4 · shares: Pursuant to the Merger Agreement, at the effective time of the merger, each issued and outstanding share of Series A Non-Cumulative Perpetual Preferred Stock, par value $0.01, of CrossFirst was converted into the right to receive one share of Series A Non-Cumulative Perpetual Preferred Stock, par value $0.001, of Issuer.

SEC source: 0000314489-25-000079 · wk-form4_1741120901.xml · nonDerivative · entry 3

Maddox Mike · CIK 0001776678 · Director · President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 167,455

F3 · shares: Pursuant to the Merger Agreement, at the effective time of the merger, each CrossFirst performance-based restricted stock unit award (each, a "CrossFirst PSU") was assumed and converted into an Issuer RSU, subject to the same terms and conditions (including service-based vesting terms but excluding performance-based vesting terms) as applied to the CrossFirst PSU immediately prior to the effective time of the merger, relating to the number of shares of Issuer common stock equal to the product of (A) 0.6675 shares of Issuer common stock, multiplied by (B)(i) for CrossFirst PSUs granted in 2023, actual performance and (ii) for CrossFirst PSUs granted in 2024, target performance, in each case, with any fractional shares rounded to the nearest whole share of Issuer common stock. Each Issuer RSU represents a contingent right to receive one share of Issuer common stock.

SEC source: 0000314489-25-000079 · wk-form4_1741120901.xml · nonDerivative · entry 2

Maddox Mike · CIK 0001776678 · Director · President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 136,685

F2 · shares: Pursuant to the Merger Agreement, at the effective time of the merger, each CrossFirst restricted stock unit subject to time based vesting conditions (each, a "CrossFirst RSU") was assumed and converted into a restricted stock unit award in respect of Issuer common stock, par value $0.001 (each, an "Issuer RSU"), subject to vesting, repurchase, or other lapse restriction with the same terms and conditions as were applicable under such CrossFirst RSU immediately prior to the effective time of the merger relating to the number of shares of Issuer common stock equal to the product of (A) 0.6675 shares of Issuer common stock, multiplied by (B) the number of shares of CrossFirst common stock subject to the CrossFirst RSUs immediately prior to the effective time of the merger, with any fractional shares rounded to the nearest whole share of Issuer common stock. Each Issuer RSU represents a contingent right to receive one share of Issuer common stock.

SEC source: 0000314489-25-000079 · wk-form4_1741120901.xml · nonDerivative · entry 1

Maddox Mike · CIK 0001776678 · Director · President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 120,383

F1 · shares: Acquired pursuant to that certain Agreement and Plan of Merger (the "Merger Agreement") entered into on August 26, 2024, between Issuer and CrossFirst Bankshares, Inc. ("CrossFirst"). Pursuant to the Merger Agreement, at the effective time of the merger, CrossFirst merged with and into Issuer with Issuer surviving the merger, and each share of common stock, par value $0.01 per share, of CrossFirst outstanding immediately prior to the effective time of the merger, other than certain excluded shares, was converted into the right to receive (a) 0.6675 shares of common stock, par value $0.001, of Issuer and (b) cash in lieu of fractional shares.

SEC source: 0000314489-25-000078 · wk-form4_1741120812.xml · derivative · entry 10

Fauss Amy · CIK 0001776485 · Chief Info & Tech Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 40,050

Underlying: Common Stock · 40,050 shares

Expires 2033-07-26

F5 · shares: Pursuant to the Merger Agreement, at the effective time of the merger, each CrossFirst stock-settled stock appreciation right ("CrossFirst SAR") outstanding immediately prior to the effective time of the merger was converted into a stock appreciation right in respect of Issuer common stock par value $0.001, relating to the number of shares of Issuer common stock equal to the product of (A) the number of shares of CrossFirst common stock subject to such CrossFirst SAR immediately prior to the closing of the merger, multiplied by (B) 0.6675 shares of common stock, par value $0.001, of Issuer ("Exchange Ratio"), with any fractional shares rounded down to the nearest whole share of Issuer common stock, and at an exercise price per share equal to (i) the exercise price per share of the CrossFirst SAR immediately prior to the effective time of the merger, divided by (ii) the Exchange Ratio, rounded up to the nearest whole cent.

SEC source: 0000314489-25-000078 · wk-form4_1741120812.xml · derivative · entry 9

Fauss Amy · CIK 0001776485 · Chief Info & Tech Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 17,280

Underlying: Common Stock · 17,280 shares

Expires 2031-07-29

F5 · shares: Pursuant to the Merger Agreement, at the effective time of the merger, each CrossFirst stock-settled stock appreciation right ("CrossFirst SAR") outstanding immediately prior to the effective time of the merger was converted into a stock appreciation right in respect of Issuer common stock par value $0.001, relating to the number of shares of Issuer common stock equal to the product of (A) the number of shares of CrossFirst common stock subject to such CrossFirst SAR immediately prior to the closing of the merger, multiplied by (B) 0.6675 shares of common stock, par value $0.001, of Issuer ("Exchange Ratio"), with any fractional shares rounded down to the nearest whole share of Issuer common stock, and at an exercise price per share equal to (i) the exercise price per share of the CrossFirst SAR immediately prior to the effective time of the merger, divided by (ii) the Exchange Ratio, rounded up to the nearest whole cent.

SEC source: 0000314489-25-000078 · wk-form4_1741120812.xml · derivative · entry 8

Fauss Amy · CIK 0001776485 · Chief Info & Tech Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,787

Underlying: Common Stock · 7,787 shares

Expires 2030-05-01

F5 · shares: Pursuant to the Merger Agreement, at the effective time of the merger, each CrossFirst stock-settled stock appreciation right ("CrossFirst SAR") outstanding immediately prior to the effective time of the merger was converted into a stock appreciation right in respect of Issuer common stock par value $0.001, relating to the number of shares of Issuer common stock equal to the product of (A) the number of shares of CrossFirst common stock subject to such CrossFirst SAR immediately prior to the closing of the merger, multiplied by (B) 0.6675 shares of common stock, par value $0.001, of Issuer ("Exchange Ratio"), with any fractional shares rounded down to the nearest whole share of Issuer common stock, and at an exercise price per share equal to (i) the exercise price per share of the CrossFirst SAR immediately prior to the effective time of the merger, divided by (ii) the Exchange Ratio, rounded up to the nearest whole cent.

SEC source: 0000314489-25-000078 · wk-form4_1741120812.xml · derivative · entry 7

Fauss Amy · CIK 0001776485 · Chief Info & Tech Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,721

Underlying: Common Stock · 5,721 shares

Expires 2028-05-01

F5 · shares: Pursuant to the Merger Agreement, at the effective time of the merger, each CrossFirst stock-settled stock appreciation right ("CrossFirst SAR") outstanding immediately prior to the effective time of the merger was converted into a stock appreciation right in respect of Issuer common stock par value $0.001, relating to the number of shares of Issuer common stock equal to the product of (A) the number of shares of CrossFirst common stock subject to such CrossFirst SAR immediately prior to the closing of the merger, multiplied by (B) 0.6675 shares of common stock, par value $0.001, of Issuer ("Exchange Ratio"), with any fractional shares rounded down to the nearest whole share of Issuer common stock, and at an exercise price per share equal to (i) the exercise price per share of the CrossFirst SAR immediately prior to the effective time of the merger, divided by (ii) the Exchange Ratio, rounded up to the nearest whole cent.

SEC source: 0000314489-25-000078 · wk-form4_1741120812.xml · derivative · entry 6

Fauss Amy · CIK 0001776485 · Chief Info & Tech Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,303

Underlying: Common Stock · 14,303 shares

Expires 2028-01-24

F5 · shares: Pursuant to the Merger Agreement, at the effective time of the merger, each CrossFirst stock-settled stock appreciation right ("CrossFirst SAR") outstanding immediately prior to the effective time of the merger was converted into a stock appreciation right in respect of Issuer common stock par value $0.001, relating to the number of shares of Issuer common stock equal to the product of (A) the number of shares of CrossFirst common stock subject to such CrossFirst SAR immediately prior to the closing of the merger, multiplied by (B) 0.6675 shares of common stock, par value $0.001, of Issuer ("Exchange Ratio"), with any fractional shares rounded down to the nearest whole share of Issuer common stock, and at an exercise price per share equal to (i) the exercise price per share of the CrossFirst SAR immediately prior to the effective time of the merger, divided by (ii) the Exchange Ratio, rounded up to the nearest whole cent.

SEC source: 0000314489-25-000078 · wk-form4_1741120812.xml · derivative · entry 5

Fauss Amy · CIK 0001776485 · Chief Info & Tech Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,535

Underlying: Common Stock · 9,535 shares

Expires 2025-05-01

F5 · shares: Pursuant to the Merger Agreement, at the effective time of the merger, each CrossFirst stock-settled stock appreciation right ("CrossFirst SAR") outstanding immediately prior to the effective time of the merger was converted into a stock appreciation right in respect of Issuer common stock par value $0.001, relating to the number of shares of Issuer common stock equal to the product of (A) the number of shares of CrossFirst common stock subject to such CrossFirst SAR immediately prior to the closing of the merger, multiplied by (B) 0.6675 shares of common stock, par value $0.001, of Issuer ("Exchange Ratio"), with any fractional shares rounded down to the nearest whole share of Issuer common stock, and at an exercise price per share equal to (i) the exercise price per share of the CrossFirst SAR immediately prior to the effective time of the merger, divided by (ii) the Exchange Ratio, rounded up to the nearest whole cent.

SEC source: 0000314489-25-000078 · wk-form4_1741120812.xml · nonDerivative · entry 4

Fauss Amy · CIK 0001776485 · Chief Info & Tech Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 50

F4 · shares: Pursuant to the Merger Agreement, at the effective time of the merger, each issued and outstanding share of Series A Non-Cumulative Perpetual Preferred Stock, par value $0.01, of CrossFirst was converted into the right to receive one share of Series A Non-Cumulative Perpetual Preferred Stock, par value $0.001, of Issuer.

SEC source: 0000314489-25-000078 · wk-form4_1741120812.xml · nonDerivative · entry 3

Fauss Amy · CIK 0001776485 · Chief Info & Tech Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 79,085

F3 · shares: Pursuant to the Merger Agreement, at the effective time of the merger, each CrossFirst performance-based restricted stock unit award (each, a "CrossFirst PSU") was assumed and converted into an Issuer RSU, subject to the same terms and conditions (including service-based vesting terms but excluding performance-based vesting terms) as applied to the CrossFirst PSU immediately prior to the effective time of the merger, relating to the number of shares of Issuer common stock equal to the product of (A) 0.6675 shares of Issuer common stock, multiplied by (B)(i) for CrossFirst PSUs granted in 2023, actual performance and (ii) for CrossFirst PSUs granted in 2024, target performance, in each case, with any fractional shares rounded to the nearest whole share of Issuer common stock. Each Issuer RSU represents a contingent right to receive one share of Issuer common stock.

SEC source: 0000314489-25-000078 · wk-form4_1741120812.xml · nonDerivative · entry 2

Fauss Amy · CIK 0001776485 · Chief Info & Tech Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 71,231

F2 · shares: Pursuant to the Merger Agreement, at the effective time of the merger, each CrossFirst restricted stock unit subject to time based vesting conditions (each, a "CrossFirst RSU") was assumed and converted into a restricted stock unit award in respect of Issuer common stock, par value $0.001 (each, an "Issuer RSU"), subject to vesting, repurchase, or other lapse restriction with the same terms and conditions as were applicable under such CrossFirst RSU immediately prior to the effective time of the merger relating to the number of shares of Issuer common stock equal to the product of (A) 0.6675 shares of Issuer common stock, multiplied by (B) the number of shares of CrossFirst common stock subject to the CrossFirst RSUs immediately prior to the effective time of the merger, with any fractional shares rounded to the nearest whole share of Issuer common stock. Each Issuer RSU represents a contingent right to receive one share of Issuer common stock.

SEC source: 0000314489-25-000078 · wk-form4_1741120812.xml · nonDerivative · entry 1

Fauss Amy · CIK 0001776485 · Chief Info & Tech Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 67,144

F1 · shares: Acquired pursuant to that certain Agreement and Plan of Merger (the "Merger Agreement") entered into on August 26, 2024, between Issuer and CrossFirst Bankshares, Inc. ("CrossFirst"). Pursuant to the Merger Agreement, at the effective time of the merger, CrossFirst merged with and into Issuer with Issuer surviving the merger, and each share of common stock, par value $0.01 per share, of CrossFirst outstanding immediately prior to the effective time of the merger, other than certain excluded shares, was converted into the right to receive (a) 0.6675 shares of common stock, par value $0.001, of Issuer and (b) cash in lieu of fractional shares.

SEC source: 0000314489-25-000077 · wk-form4_1741120758.xml · nonDerivative · entry 4

Grigsby Jennifer M · CIK 0001392889 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · Jennifer M. Grigsby Living Trust

Disclosed balance after: 25,637

F1 · shares: Acquired pursuant to that certain Agreement and Plan of Merger (the "Merger Agreement") entered into on August 26, 2024, between Issuer and CrossFirst Bankshares, Inc. ("CrossFirst"). Pursuant to the Merger Agreement, at the effective time of the merger, CrossFirst merged with and into Issuer with Issuer surviving the merger, and each share of common stock, par value $0.01 per share, of CrossFirst outstanding immediately prior to the effective time of the merger, other than certain excluded shares, was converted into the right to receive (a) 0.6675 shares of common stock, par value $0.001, of Issuer and (b) cash in lieu of fractional shares.

SEC source: 0000314489-25-000077 · wk-form4_1741120758.xml · nonDerivative · entry 3

Grigsby Jennifer M · CIK 0001392889 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 18,431

F3 · shares: Pursuant to the Merger Agreement, at the effective time of the merger, each deferred share of CrossFirst common stock that is credited to a participant's account under the CorssFirst 2018 Directors' Deferred Fee Plan as of immediately prior to the effective time of the merger was converted into the right to receive 0.6675 shares of common stock, par value $0.001, of Issuer, with any fractional shares rounded to the nearest whole share of Issuer common stock.

SEC source: 0000314489-25-000077 · wk-form4_1741120758.xml · nonDerivative · entry 2

Grigsby Jennifer M · CIK 0001392889 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,529

F2 · shares: Pursuant to the Merger Agreement, at the effective time of the merger, each CrossFirst restricted stock award held by a CrossFirst non-employee director was converted into the right to receive (a) 0.6675 shares of common stock, par value $0.001, of Issuer and (b) cash in lieu of fractional shares.

SEC source: 0000314489-25-000077 · wk-form4_1741120758.xml · nonDerivative · entry 1

Grigsby Jennifer M · CIK 0001392889 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,073

F1 · shares: Acquired pursuant to that certain Agreement and Plan of Merger (the "Merger Agreement") entered into on August 26, 2024, between Issuer and CrossFirst Bankshares, Inc. ("CrossFirst"). Pursuant to the Merger Agreement, at the effective time of the merger, CrossFirst merged with and into Issuer with Issuer surviving the merger, and each share of common stock, par value $0.01 per share, of CrossFirst outstanding immediately prior to the effective time of the merger, other than certain excluded shares, was converted into the right to receive (a) 0.6675 shares of common stock, par value $0.001, of Issuer and (b) cash in lieu of fractional shares.

SEC source: 0000314489-25-000076 · wk-form4_1741120713.xml · nonDerivative · entry 5

Brenneman Rod · CIK 0001775250 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · Brenneman Living Trust Dated November 2, 2012

Disclosed balance after: 100

F4 · shares: Pursuant to the Merger Agreement, at the effective time of the merger, each issued and outstanding share of Series A Non-Cumulative Perpetual Preferred Stock, par value $0.01, of CrossFirst was converted into the right to receive one share of Series A Non-Cumulative Perpetual Preferred Stock, par value $0.001, of Issuer.

SEC source: 0000314489-25-000076 · wk-form4_1741120713.xml · nonDerivative · entry 4

Brenneman Rod · CIK 0001775250 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · Brenneman Living Trust Dated November 2, 2012

Disclosed balance after: 132,421

F1 · shares: Acquired pursuant to that certain Agreement and Plan of Merger (the "Merger Agreement") entered into on August 26, 2024, between Issuer and CrossFirst Bankshares, Inc. ("CrossFirst"). Pursuant to the Merger Agreement, at the effective time of the merger, CrossFirst merged with and into Issuer with Issuer surviving the merger, and each share of common stock, par value $0.01 per share, of CrossFirst outstanding immediately prior to the effective time of the merger, other than certain excluded shares, was converted into the right to receive (a) 0.6675 shares of common stock, par value $0.001, of Issuer and (b) cash in lieu of fractional shares.

SEC source: 0000314489-25-000076 · wk-form4_1741120713.xml · nonDerivative · entry 3

Brenneman Rod · CIK 0001775250 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 35,584

F3 · shares: Pursuant to the Merger Agreement, at the effective time of the merger, each deferred share of CrossFirst common stock that is credited to a participant's account under the CorssFirst 2018 Directors' Deferred Fee Plan as of immediately prior to the effective time of the merger was converted into the right to receive 0.6675 shares of common stock, par value $0.001, of Issuer, with any fractional shares rounded to the nearest whole share of Issuer common stock.

SEC source: 0000314489-25-000076 · wk-form4_1741120713.xml · nonDerivative · entry 2

Brenneman Rod · CIK 0001775250 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 34,292

F2 · shares: Pursuant to the Merger Agreement, at the effective time of the merger, each CrossFirst restricted stock award held by a CrossFirst non-employee director was converted into the right to receive (a) 0.6675 shares of common stock, par value $0.001, of Issuer and (b) cash in lieu of fractional shares.

SEC source: 0000314489-25-000076 · wk-form4_1741120713.xml · nonDerivative · entry 1

Brenneman Rod · CIK 0001775250 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 31,836

F1 · shares: Acquired pursuant to that certain Agreement and Plan of Merger (the "Merger Agreement") entered into on August 26, 2024, between Issuer and CrossFirst Bankshares, Inc. ("CrossFirst"). Pursuant to the Merger Agreement, at the effective time of the merger, CrossFirst merged with and into Issuer with Issuer surviving the merger, and each share of common stock, par value $0.01 per share, of CrossFirst outstanding immediately prior to the effective time of the merger, other than certain excluded shares, was converted into the right to receive (a) 0.6675 shares of common stock, par value $0.001, of Issuer and (b) cash in lieu of fractional shares.

SEC source: 0000314489-25-000075 · wk-form4_1741120639.xml · nonDerivative · entry 1

BRADSHAW STANLEY J · CIK 0001016245 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 464,848

F1 · shares: Acquired pursuant to that certain Agreement and Plan of Merger (the "Merger Agreement") entered into on August 26, 2024, between Issuer and CrossFirst Bankshares, Inc. ("CrossFirst"). Pursuant to the Merger Agreement, at the effective time of the merger, CrossFirst merged with and into Issuer with Issuer surviving the merger, and each share of common stock, par value $0.01 per share, of CrossFirst outstanding immediately prior to the effective time of the merger, other than certain excluded shares, was converted into the right to receive (a) 0.6675 shares of common stock, par value $0.001, of Issuer and (b) cash in lieu of fractional shares.

SEC source: 0000314489-25-000039 · wk-form4_1740674477.xml · nonDerivative · entry 1

BRADSHAW STANLEY J · CIK 0001016245 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 437,481

SEC source: 0000314489-25-000011 · wk-form4_1738701565.xml · nonDerivative · entry 3

BRADSHAW STANLEY J · CIK 0001016245 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 435,643

F3 · price: The price reported above reflects the weighted average purchase price. The purchase was executed in multiple trades at prices ranging from $23.50 to $23.57, inclusive. The reporting person undertakes to provide the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the shares purchased at each separate price within the range set forth in this footnote (1) to this Form 4.

SEC source: 0000314489-25-000035 · wk-form4_1738702758.xml · nonDerivative · entry 5

Randolph Amy L · CIK 0001668161 · Chief of Staff

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 100,443

F5 · shares: Represents dividend equivalent rights accrued on Restricted Stock Units in connection with the payment of a cash dividend on First Busey Corporation Stock. Each dividend equivalent right is the economic equivalent of one share of First Busey Corporation Stock.

SEC source: 0000314489-25-000035 · wk-form4_1738702758.xml · nonDerivative · entry 4

Randolph Amy L · CIK 0001668161 · Chief of Staff

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 99,768

F4 · shares: Upon settlement of Performance Stock Units and dividend equivalent shares accrued for Performance Stock Units, shares were withheld to satisfy the related tax obligations.

SEC source: 0000314489-25-000035 · wk-form4_1738702758.xml · nonDerivative · entry 3

Randolph Amy L · CIK 0001668161 · Chief of Staff

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 102,305

F3 · shares: Represents settlement of accumulated dividend equivalent rights that were accrued on Performance Stock Units for which performance-based vesting requirements were confirmed to have been satisfied by the Board of Directors of the issuer on January 31, 2025. Each dividend equivalent right is the economic equivalent of one share of First Busey Corporation Stock.

SEC source: 0000314489-25-000035 · wk-form4_1738702758.xml · nonDerivative · entry 2

Randolph Amy L · CIK 0001668161 · Chief of Staff

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 101,704

F2 · shares: Represents a grant of Performance Stock Units for which performance-based vesting requirements were confirmed to have been satisfied by the Board of Directors of the issuer on January 31, 2025.

SEC source: 0000314489-25-000033 · wk-form4_1738702670.xml · nonDerivative · entry 6

Powers John Joseph · CIK 0001540678 · EVP & General Counsel

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 93,054

F6 · shares: Represents dividend equivalent rights accrued on Restricted Stock Units in connection with the payment of a cash dividend on First Busey Corporation Stock. Each dividend equivalent right is the economic equivalent of one share of First Busey Corporation Stock.

SEC source: 0000314489-25-000033 · wk-form4_1738702670.xml · nonDerivative · entry 5

Powers John Joseph · CIK 0001540678 · EVP & General Counsel

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 92,521

F5 · shares: Upon settlement of Performance Stock Units and dividend equivalent shares accrued for Performance Stock Units, shares were withheld to satisfy the related tax obligations.

SEC source: 0000314489-25-000033 · wk-form4_1738702670.xml · nonDerivative · entry 4

Powers John Joseph · CIK 0001540678 · EVP & General Counsel

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 94,563

F4 · shares: Represents settlement of accumulated dividend equivalent rights that were accrued on Performance Stock Units for which performance-based vesting requirements were confirmed to have been satisfied by the Board of Directors of the issuer on January 31, 2025. Each dividend equivalent right is the economic equivalent of one share of First Busey Corporation Stock.

SEC source: 0000314489-25-000033 · wk-form4_1738702670.xml · nonDerivative · entry 3

Powers John Joseph · CIK 0001540678 · EVP & General Counsel

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 94,082

F3 · shares: Represents a grant of Performance Stock Units for which performance-based vesting requirements were confirmed to have been satisfied by the Board of Directors of the issuer on January 31, 2025.

SEC source: 0000314489-25-000029 · wk-form4_1738702467.xml · nonDerivative · entry 5

Jones Jeffrey David · CIK 0001786889 · EVP & CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 96,763

F5 · shares: Represents dividend equivalent rights accrued on Restricted Stock Units in connection with the payment of a cash dividend on First Busey Corporation Stock. Each dividend equivalent right is the economic equivalent of one share of First Busey Corporation Stock.

SEC source: 0000314489-25-000029 · wk-form4_1738702467.xml · nonDerivative · entry 4

Jones Jeffrey David · CIK 0001786889 · EVP & CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 95,975

F4 · shares: Upon settlement of Performance Stock Units and dividend equivalent shares accrued for Performance Stock Units, shares were withheld to satisfy the related tax obligations.

SEC source: 0000314489-25-000029 · wk-form4_1738702467.xml · nonDerivative · entry 3

Jones Jeffrey David · CIK 0001786889 · EVP & CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 98,966

F3 · shares: Represents settlement of accumulated dividend equivalent rights that were accrued on Performance Stock Units for which performance-based vesting requirements were confirmed to have been satisfied by the Board of Directors of the issuer on January 31, 2025. Each dividend equivalent right is the economic equivalent of one share of First Busey Corporation Stock.

SEC source: 0000314489-25-000029 · wk-form4_1738702467.xml · nonDerivative · entry 2

Jones Jeffrey David · CIK 0001786889 · EVP & CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 98,244

F2 · shares: Represents a grant of Performance Stock Units for which performance-based vesting requirements were confirmed to have been satisfied by the Board of Directors of the issuer on January 31, 2025.

SEC source: 0000314489-25-000031 · wk-form4_1738702592.xml · nonDerivative · entry 5

Phillips Scott A. · CIK 0001968192 · Principal Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,717

F5 · shares: Represents dividend equivalent rights accrued on Restricted Stock Units in connection with the payment of a cash dividend on First Busey Corporation Stock. Each dividend equivalent right is the economic equivalent of one share of First Busey Corporation Stock.