PB · Prosperity Bancshares Inc

The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $72.695 to $73.29 inclusive.

The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $72.685 to $73.34 inclusive.

The price reported in Column 4 of is a weighted average price. The shares were sold in multiple transactions at prices ranging from $72.635 to $73.27 inclusive. The reporting person undertakes to provide Prosperity Bancshares, any security holder of Prosperity Bancshares or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnotes (1), (2) and (3) to this Form 4.

The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $72.59 to $73.47 inclusive.

The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $72.72 to $73.47 inclusive.

The price reported in Column 4 of is a weighted average price. The shares were sold in multiple transactions at prices ranging from $72.59 to $73.47 inclusive. The reporting person undertakes to provide Prosperity Bancshares, any security holder of Prosperity Bancshares or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnotes (1), (2) and (3) to this Form 4.

The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $70.32 to $71.095 inclusive.

The price reported in Column 4 of is a weighted average price. The shares were sold in multiple transactions at prices ranging from $70.30 to $71.04 inclusive. The reporting person undertakes to provide Prosperity Bancshares, any security holder of Prosperity Bancshares or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnotes (1), (2) and (3) to this Form 4.

The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $70.30 to $70.89 inclusive.

Acquired in connection with the consummation of the transactions contemplated by the Agreement and Plan of Merger, dated as of January 27, 2026, by and between Prosperity Bancshares, Inc., a Texas corporation ("Prosperity") and Stellar Bancorp, Inc., a Texas corporation ("Stellar"). On July 1, 2026 (the "Effective Time"), upon and subject to the terms and conditions set forth in the merger agreement, (i) each share of Stellar's common stock, par value $0.01 per share, outstanding immediately prior to the Effective Time was cancelled and converted into the right to receive (a) 0.3803 shares of common stock, par value $1.00 per share, of Prosperity and (b) an amount in cash equal to $11.36 ((a) and (b) together, the "Per Share Merger Consideration"), and (ii) each outstanding Stellar restricted stock award subject solely to service-based vesting, repurchase or other lapse restriction vested and was converted into the right to receive (without interest) the Per Share Merger Consideration.

The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $73.02 to $73.87 inclusive.

The price reported in Column 4 of is a weighted average price. The shares were sold in multiple transactions at prices ranging from $72.92 to $73.87 inclusive. The reporting person undertakes to provide Prosperity Bancshares, any security holder of Prosperity Bancshares or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnotes (1), (2) and (3) to this Form 4.

Acquired in connection with the consummation of the transactions contemplated by the Agreement and Plan of Merger, dated as of January 27, 2026, by and between Prosperity Bancshares, Inc., a Texas corporation ("Prosperity") and Stellar Bancorp, Inc., a Texas corporation ("Stellar"). On July 1, 2026 (the "Effective Time"), upon and subject to the terms and conditions set forth in the merger agreement, (i) each share of Stellar's common stock, par value $0.01 per share, outstanding immediately prior to the Effective Time was cancelled and converted into the right to receive (a) 0.3803 shares of common stock, par value $1.00 per share, of Prosperity and (b) an amount in cash equal to $11.36 ((a) and (b) together, the "Per Share Merger Consideration"), and (ii) each outstanding Stellar restricted stock award subject solely to service-based vesting, repurchase or other lapse restriction vested and was converted into the right to receive (without interest) the Per Share Merger Consideration.

Acquired in connection with the consummation of the transactions contemplated by the Agreement and Plan of Merger, dated as of January 27, 2026, by and between Prosperity Bancshares, Inc., a Texas corporation ("Prosperity") and Stellar Bancorp, Inc., a Texas corporation ("Stellar"). On July 1, 2026 (the "Effective Time"), upon and subject to the terms and conditions set forth in the merger agreement, (i) each share of Stellar's common stock, par value $0.01 per share, outstanding immediately prior to the Effective Time was cancelled and converted into the right to receive (a) 0.3803 shares of common stock, par value $1.00 per share, of Prosperity and (b) an amount in cash equal to $11.36 ((a) and (b) together, the "Per Share Merger Consideration"), and (ii) each outstanding Stellar restricted stock award subject solely to service-based vesting, repurchase or other lapse restriction vested and was converted into the right to receive (without interest) the Per Share Merger Consideration.

Acquired in connection with the consummation of the transactions contemplated by the Agreement and Plan of Merger, dated as of January 27, 2026, by and between Prosperity Bancshares, Inc., a Texas corporation ("Prosperity") and Stellar Bancorp, Inc., a Texas corporation ("Stellar"). On July 1, 2026 (the "Effective Time"), upon and subject to the terms and conditions set forth in the merger agreement, (i) each share of Stellar's common stock, par value $0.01 per share, outstanding immediately prior to the Effective Time was cancelled and converted into the right to receive (a) 0.3803 shares of common stock, par value $1.00 per share, of Prosperity and (b) an amount in cash equal to $11.36 ((a) and (b) together, the "Per Share Merger Consideration"), and (ii) each outstanding Stellar restricted stock award subject solely to service-based vesting, repurchase or other lapse restriction vested and was converted into the right to receive (without interest) the Per Share Merger Consideration.

The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $72.92 to $73.87 inclusive.

Acquired in connection with the consummation of the transactions contemplated by the Agreement and Plan of Merger, dated as of January 27, 2026, by and between Prosperity Bancshares, Inc., a Texas corporation ("Prosperity") and Stellar Bancorp, Inc., a Texas corporation ("Stellar"). On July 1, 2026 (the "Effective Time"), upon and subject to the terms and conditions set forth in the merger agreement, (i) each share of Stellar's common stock, par value $0.01 per share, outstanding immediately prior to the Effective Time was cancelled and converted into the right to receive (a) 0.3803 shares of common stock, par value $1.00 per share, of Prosperity and (b) an amount in cash equal to $11.36 ((a) and (b) together, the "Per Share Merger Consideration"), and (ii) each outstanding Stellar restricted stock award subject solely to service-based vesting, repurchase or other lapse restriction vested and was converted into the right to receive (without interest) the Per Share Merger Consideration.

Acquired in connection with the consummation of the transactions contemplated by the Agreement and Plan of Merger, dated as of January 27, 2026, by and between Prosperity Bancshares, Inc., a Texas corporation ("Prosperity") and Stellar Bancorp, Inc., a Texas corporation ("Stellar"). On July 1, 2026 (the "Effective Time"), upon and subject to the terms and conditions set forth in the merger agreement, (i) each share of Stellar's common stock, par value $0.01 per share, outstanding immediately prior to the Effective Time was cancelled and converted into the right to receive (a) 0.3803 shares of common stock, par value $1.00 per share, of Prosperity and (b) an amount in cash equal to $11.36 ((a) and (b) together, the "Per Share Merger Consideration"), and (ii) each outstanding Stellar restricted stock award subject solely to service-based vesting, repurchase or other lapse restriction vested and was converted into the right to receive (without interest) the Per Share Merger Consideration.

The price reported in Column 4 of is a weighted average price. The shares were sold in multiple transactions at prices ranging from $72.53 to $72.995 inclusive. The reporting person undertakes to provide Prosperity Bancshares, any security holder of Prosperity Bancshares or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnotes (1), (2) and (3) to this Form 4.

The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $72.53 to $72.97 inclusive.

The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $72.475 to $73.11 inclusive.

The price reported in Column 4 of is a weighted average price. The shares were sold in multiple transactions at prices ranging from $71.30 to $72.16 inclusive. The reporting person undertakes to provide Prosperity Bancshares, any security holder of Prosperity Bancshares or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnotes (1) through (4) to this Form 4.

The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $70.89 to $70.98 inclusive.

The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $71.25 to $72.08 inclusive.

The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $71.35 to $72.16 inclusive.

The price reported in Column 4 of is a weighted average price. The shares were sold in multiple transactions at prices ranging from $70.72 to $71.62 inclusive. The reporting person undertakes to provide Prosperity Bancshares, any security holder of Prosperity Bancshares or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnotes (1), (2) and (3) to this Form 4.

The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $70.72 to $71.60 inclusive.

The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $70.7365 to $71.63 inclusive.

The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $67.26 to $68.015 inclusive.

The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $67.30 to $67.94 inclusive.

The price reported in Column 4 of is a weighted average price. The shares were sold in multiple transactions at prices ranging from $67.315 to $68.28 inclusive. The reporting person undertakes to provide Prosperity Bancshares, any security holder of Prosperity Bancshares or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnotes (1), (2) and (3) to this Form 4.

The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $68.84 to $69.825 inclusive.

The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $68.93 to $69.88 inclusive.

The price reported in Column 4 of is a weighted average price. The shares were sold in multiple transactions at prices ranging from $68.93 to $69.88 inclusive. The reporting person undertakes to provide Prosperity Bancshares, any security holder of Prosperity Bancshares or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnotes (1), (2) and (3) to this Form 4.

The price reported in Column 4 of is a weighted average price. The shares were sold in multiple transactions at prices ranging from $68.11 to $69.09 inclusive. The reporting person undertakes to provide Prosperity Bancshares, any security holder of Prosperity Bancshares or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnotes (1), (2) and (3) to this Form 4.