BBCP · Concrete Pumping Holdings, Inc.

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $10.7700 to $11.3000, 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 number of shares sold at each separate price within the ranges set forth in this footnote.

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $10.7500 to $10.8500, 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 number of shares sold at each separate price within the ranges set forth in this footnote.

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $10.5000 to $10.7650, 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 number of shares sold at each separate price within the ranges set forth in this footnote.

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $10.5000 to $11.1400, 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 number of shares sold at each separate price within the ranges set forth in this footnote.

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $10.4000 to $10.7000, 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 number of shares sold at each separate price within the ranges set forth in this footnote.

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $10.5500 to $10.7850, 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 number of shares sold at each separate price within the ranges set forth in this footnote.

Represents restricted stock units of common stock. 1/3 of such shares will vest in three substantially equal installments on each of January 15, 2027, January 15, 2028 and January 15, 2029, provided that the Reporting Person is an employee of the Issuer or subsidiary of the Issuer on the vesting dates.

Each restricted stock unit ("RSU") is the economic equivalent of one share of Common Stock.

Represents market-based RSUs reflected at 100% of target performance that will be earned if the Company's total stockholder return ("TSR") over the period from November 1, 2025 through October 31, 2028 relative to the TSR of a set of peer companies in the Russell 2000 Index achieves a specified percentile target. The total range of RSUs that can be earned in this award is 0% to 200% of the target award. Once the number of RSUs earned pursuant to the market-condition have been determined, such RSUs will vest on January 15, 2029, provided that the Reporting Person is an employee of the Issuer or subsidiary of the Issuer of the vesting date.

Represents restricted stock units of common stock. 1/3 of such shares will vest in three substantially equal installments on each of January 15, 2027, January 15, 2028 and January 15, 2029, provided that the Reporting Person is an employee of the Issuer or subsidiary of the Issuer on the vesting dates.

Each restricted stock unit ("RSU") is the economic equivalent of one share of Common Stock.

Represents market-based RSUs reflected at 100% of target performance that will be earned if the Company's total stockholder return ("TSR") over the period from November 1, 2025 through October 31, 2028 relative to the TSR of a set of peer companies in the Russell 2000 Index achieves a specified percentile target. The total range of RSUs that can be earned in this award is 0% to 200% of the target award. Once the number of RSUs earned pursuant to the market-condition have been determined, such RSUs will vest on January 15, 2029, provided that the Reporting Person is an employee of the Issuer or subsidiary of the Issuer of the vesting date.

The Company withheld shares of common stock to satisfy the tax withholding obligations for the Reporting Person's performance-based and time-based restricted stock units that vested on January 15, 2026.

The Company withheld shares of common stock to satisfy the tax withholding obligations for the Reporting Person's performance-based and time-based restricted stock units that vested on January 15, 2026.

Each restricted stock unit ("RSU") is the economic equivalent of one share of Common Stock.

Represents market-based RSUs reflected at 100% of target performance that will be earned if the Company's total stockholder return ("TSR") over the period from November 1, 2024 through October 31, 2027 relative to the TSR of a set of peer companies in the Russell 2000 Index achieves a specified percentile target. The total range of RSUs that can be earned in this award is 0% to 200% of the target award. Once the number of RSUs earned pursuant to the market-condition have been determined, such RSUs will vest on January 15, 2028, provided that the Reporting Person is an employee of the Issuer or subsidiary of the Issuer of the vesting date.

Represents restricted stock units of common stock. 1/3 of such shares will vest in three substantially equal installments on each of January 15, 2026, January 15, 2027 and January 15, 2028, provided that the Reporting Person is an employee of the Issuer or subsidiary of the Issuer on the vesting dates.

Represents restricted stock units of common stock. 1/3 of such shares will vest in three substantially equal installments on each of January 15, 2026, January 15, 2027 and January 15, 2028, provided that the Reporting Person is an employee of the Issuer or subsidiary of the Issuer on the vesting dates.

Each restricted stock unit ("RSU") is the economic equivalent of one share of Common Stock.

Represents market-based RSUs reflected at 100% of target performance that will be earned if the Company's total stockholder return ("TSR") over the period from November 1, 2024 through October 31, 2027 relative to the TSR of a set of peer companies in the Russell 2000 Index achieves a specified percentile target. The total range of RSUs that can be earned in this award is 0% to 200% of the target award. Once the number of RSUs earned pursuant to the market-condition have been determined, such RSUs will vest on January 15, 2028, provided that the Reporting Person is an employee of the Issuer or subsidiary of the Issuer of the vesting date.

The price reported in Column 4 is actual purchase price for the total shares.

The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $5.03 to $5.23, inclusive.

The Reporting Person exercised 249,287 options and the Company withheld 200,920 of the underlying shares to satisfy the tax withholding and exercise price obligations.

The Reporting Person exercised 249,287 options and the Company withheld 200,920 of the underlying shares to satisfy the tax withholding and exercise price obligations.

The Reporting Person exercised 249,287 options and the Company withheld 200,920 of the underlying shares to satisfy the tax withholding and exercise price obligations.

Represents performance-based restricted stock units granted to the filing person. The restricted stock units were initially granted on April 12, 2024 and the amount of restricted stock units eligible for vesting was subject to certification of the satisfaction of certain performance conditions for the 2024 fiscal year by the Compensation Committee of the Board of Directors. On January 15, 2025, the Compensation Committee of the Board of Directors certified the achievement of the performance conditions for the restricted stock units, which vest in three equal increments on January 15, 2025, January 15, 2026 and January 15, 2027, subject to the filing person's continued employment through the vesting date.

The Company withheld shares of common stock to satisfy the tax withholding obligations for the Reporting Person's performance-based and time-based restricted stock units that vested on January 15, 2025.

Represents performance-based restricted stock units granted to the filing person. The restricted stock units were initially granted on January 22, 2024 and the amount of restricted stock units eligible for vesting was subject to certification of the satisfaction of certain performance conditions for the 2024 fiscal year by the Compensation Committee of the Board of Directors. On January 15, 2025, the Compensation Committee of the Board of Directors certified the achievement of the performance conditions for the restricted stock units, which vest in three equal increments on January 15, 2025, January 15, 2026 and January 15, 2027, subject to the filing person's continued employment through the vesting date.

Represents performance-based restricted stock units granted to the filing person. The restricted stock units were initially granted on January 22, 2024 and the amount of restricted stock units eligible for vesting was subject to certification of the satisfaction of certain performance conditions for the 2024 fiscal year by the Compensation Committee of the Board of Directors. On January 15, 2025, the Compensation Committee of the Board of Directors certified the achievement of the performance conditions for the restricted stock units, which vest in three equal increments on January 15, 2025, January 15, 2026 and January 15, 2027, subject to the filing person's continued employment through the vesting date.

The Company withheld shares of common stock to satisfy the tax withholding obligations for the Reporting Person's performance-based and time-based restricted stock units that vested on January 15, 2025.

The Company withheld shares of common stock to satisfy the tax withholding obligation for the Reporting Person's Restricted Stock Awards that vested on August 23, 2024.

The Company withheld shares of common stock to satisfy the tax withholding obligation for the Reporting Person's Restricted Stock Awards that vested on August 23, 2024.

The Reporting Person exercised 697,544 options and the Company withheld 330,982 of the underlying shares to satisfy the tax withholding and exercise price obligations.

The options were exercised, and a portion of the underlying shares were sold to cover the tax obligation, the exercise price and associated fees, pursuant to a Rule 10b5-1Plan, which was adopted January 15, 2024 and terminated following completion of the transactions disclosed herein.

The options were exercised, and a portion of the underlying shares were sold to cover the tax obligation, the exercise price and associated fees, pursuant to a Rule 10b5-1Plan, which was adopted January 15, 2024 and terminated following completion of the transactions disclosed herein.

The Reporting Person exercised 697,544 options and the Company withheld 330,982 of the underlying shares to satisfy the tax withholding and exercise price obligations.

The options were exercised, and a portion of the underlying shares were sold to cover the tax obligation, the exercise price and associated fees, pursuant to a Rule 10b5-1Plan, which was adopted January 15, 2024 and terminated following completion of the transactions disclosed herein.

The Reporting Person exercised 697,544 options and the Company withheld 330,982 of the underlying shares to satisfy the tax withholding and exercise price obligations.

The options were exercised, and a portion of the underlying shares were sold to cover the tax obligation, the exercise price and associated fees, pursuant to a Rule 10b5-1Plan, which was adopted January 15, 2024.

The options were exercised, and a portion of the underlying shares were sold to cover the tax obligation, the exercise price and associated fees, pursuant to a Rule 10b5-1Plan, which was adopted January 15, 2024.

The options were exercised, and a portion of the underlying shares were sold to cover the tax obligation, the exercise price and associated fees, pursuant to a Rule 10b5-1Plan, which was adopted January 15, 2024.

The options were exercised, and a portion of the underlying shares were sold to cover the tax obligation, the exercise price and associated fees, pursuant to a Rule 10b5-1Plan, which was adopted January 15, 2024.

The options were exercised, and a portion of the underlying shares were sold to cover the tax obligation, the exercise price and associated fees, pursuant to a Rule 10b5-1Plan, which was adopted January 15, 2024.

The options were exercised, and a portion of the underlying shares were sold to cover the tax obligation, the exercise price and associated fees, pursuant to a Rule 10b5-1Plan, which was adopted January 15, 2024.

The options were exercised, and a portion of the underlying shares were sold to cover the tax obligation, the exercise price and associated fees, pursuant to a Rule 10b5-1Plan, which was adopted January 15, 2024.

The options were exercised, and a portion of the underlying shares were sold to cover the tax obligation, the exercise price and associated fees, pursuant to a Rule 10b5-1Plan, which was adopted January 15, 2024.

The options were exercised, and a portion of the underlying shares were sold to cover the tax obligation, the exercise price and associated fees, pursuant to a Rule 10b5-1Plan, which was adopted January 15, 2024.

Represents restricted stock units of common stock. 1/3 of such shares will vest in three substantially equal installments on each of January 15, 2025, January 15, 2026 and January 15, 2027, provided that the Reporting Person is an employee of the Issuer or subsidiary of the Issuer on the vesting dates.

The Company withheld shares of common stock to satisfy the tax withholding obligation for the Reporting Person's Restricted Stock Awards that vested on March 29, 2024.

The Company withheld shares of common stock to satisfy the tax withholding obligation for the Reporting Person's Restricted Stock Awards that vested on March 29, 2024.

Represents restricted stock units of common stock. 1/3 of such shares will vest in three substantially equal installments on each of January 15, 2025, January 15, 2026 and January 15, 2027, provided that the Reporting Person is an employee of the Issuer or subsidiary of the Issuer on the vesting dates.

Represents restricted stock units of common stock. 1/3 of such shares will vest in three substantially equal installments on each of January 15, 2025, January 15, 2026 and January 15, 2027, provided that the Reporting Person is an employee of the Issuer or subsidiary of the Issuer on the vesting dates.

These shares are subject to forfeiture to the Issuer as the underlying vesting conditions were not met.

The Company withheld shares of common stock to satisfy the tax withholding obligation for the Reporting Person's Restricted Stock Awards that vested on December 6, 2023.