MYRG

Represents a weighted average price per share of 80 shares of common stock sold in 2 transactions, ranging in price from $452.73 to $453.47 per share. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the Issuer, or a security holder of the Issuer, full information regarding the number of shares sold at each separate price within the range.

Represents a weighted average price per share of 62 shares of common stock sold in 5 transactions, ranging in price from $451.03 to $452.00 per share. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the Issuer, or a security holder of the Issuer, full information regarding the number of shares sold at each separate price within the range.

Represents a weighted average price per share of 2,410 shares of common stock sold in 20 transactions, ranging in price from $450.01 to $451.00 per share. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the Issuer, or a security holder of the Issuer, full information regarding the number of shares sold at each separate price within the range.

Represents a weighted average price per share of 12,123 shares of common stock sold in 529 transactions, ranging in price from $449.00 to $450.00 per share. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the Issuer, or a security holder of the Issuer, full information regarding the number of shares sold at each separate price within the range.

Represents a weighted average price per share of 469 shares of common stock sold in 6 transactions, ranging in price from $452.30 to $453.11 per share. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the Issuer, or a security holder of the Issuer, full information regarding the number of shares sold at each separate price within the range.

Represents a weighted average price per share of 416 shares of common stock sold in 9 transactions, ranging in price from $448.12 to $449.10 per share. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the Issuer, or a security holder of the Issuer, full information regarding the number of shares sold at each separate price within the range.

Represents a weighted average price per share of 759 shares of common stock sold in 2 transactions, ranging in price from $460.00 to $460.50 per share. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the Issuer, or a security holder of the Issuer, full information regarding the number of shares sold at each separate price within the range.

Represents a weighted average price per share of 601 shares of common stock sold in 7 transactions, ranging in price from $458.52 to $459.30 per share. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the Issuer, or a security holder of the Issuer, full information regarding the number of shares sold at each separate price within the range.

Represents a weighted average price per share of 489 shares of common stock sold in 19 transactions, ranging in price from $447.11 to $448.05 per share. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the Issuer, or a security holder of the Issuer, full information regarding the number of shares sold at each separate price within the range.

Represents a weighted average price per share of 569 shares of common stock sold in 18 transactions, ranging in price from $445.99 to $446.98 per share. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the Issuer, or a security holder of the Issuer, full information regarding the number of shares sold at each separate price within the range.

Represents a weighted average price per share of 240 shares of common stock sold in 3 transactions, ranging in price from $443.11 to $443.69 per share. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the Issuer, or a security holder of the Issuer, full information regarding the number of shares sold at each separate price within the range.

Represents a weighted average price per share of 567 shares of common stock sold in 8 transactions, ranging in price from $441.76 to $442.59 per share. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the Issuer, or a security holder of the Issuer, full information regarding the number of shares sold at each separate price within the range.

Represents a weighted average price per share of 120 shares of common stock sold in 3 transactions, ranging in price from $444.72 to $445.70 per share. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the Issuer, or a security holder of the Issuer, full information regarding the number of shares sold at each separate price within the range.

Represents a weighted average price per share of 440 shares of common stock sold in 6 transactions, ranging in price from $452.58 to $453.53 per share. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the Issuer, or a security holder of the Issuer, full information regarding the number of shares sold at each separate price within the range.

Represents a weighted average price per share of 120 shares of common stock sold in 3 transactions, ranging in price from $456.62 to $457.02 per share. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the Issuer, or a security holder of the Issuer, full information regarding the number of shares sold at each separate price within the range.

Represents a weighted average price per share of 289 shares of common stock sold in 8 transactions, ranging in price from $449.20 to $449.61 per share. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the Issuer, or a security holder of the Issuer, full information regarding the number of shares sold at each separate price within the range.

Represents shares of the Issuer's common stock withheld to satisfy tax withholding obligations in connection with the deferred payment of Restricted Stock Units granted pursuant to the Issuer's 2017 Long-Term Incentive Plan that vested on April 27, 2021, in accordance with the Reporting Person's election pursuant to the Issuer's non-employee director deferral program.

Represents shares of the Issuer's common stock withheld to satisfy tax withholding obligations in connection with the vesting of Restricted Stock Units granted pursuant to the Issuer's 2017 Long-Term Incentive Plan.

These Restricted Stock Units, which were awarded on April 24, 2025 pursuant to the Issuer's 2017 Long-Term Incentive Plan, vested on April 24, 2026 and were settled in shares of the Issuer's common stock on a one-for-one basis.

These Restricted Stock Units, which were awarded on April 24, 2025 pursuant to the Issuer's 2017 Long-Term Incentive Plan, vested on April 24, 2026 and were settled in shares of the Issuer's common stock on a one-for-one basis. The payment of such shares has been deferred in accordance with the Reporting Person's election pursuant to the Issuer's non-employee director deferral program.

These Restricted Stock Units, which were awarded on April 24, 2025 pursuant to the Issuer's 2017 Long-Term Incentive Plan, vested on April 24, 2026 and were settled in shares of the Issuer's common stock on a one-for-one basis.

These Restricted Stock Units, which were awarded on April 24, 2025 pursuant to the Issuer's 2017 Long-Term Incentive Plan, vested on April 24, 2026 and were settled in shares of the Issuer's common stock on a one-for-one basis.

These Restricted Stock Units, which were awarded on April 24, 2025 pursuant to the Issuer's 2017 Long-Term Incentive Plan, vested on April 24, 2026 and were settled in shares of the Issuer's common stock on a one-for-one basis. The payment of such shares has been deferred in accordance with the Reporting Person's election pursuant to the Issuer's non-employee director deferral program.

These Restricted Stock Units, which were awarded on April 24, 2025 pursuant to the Issuer's 2017 Long-Term Incentive Plan, vested on April 24, 2026 and were settled in shares of the Issuer's common stock on a one-for-one basis. The payment of such shares has been deferred in accordance with the Reporting Person's election pursuant to the Issuer's non-employee director deferral program.

These Restricted Stock Units, which were awarded on April 24, 2025 pursuant to the Issuer's 2017 Long-Term Incentive Plan, vested on April 24, 2026 and were settled in shares of the Issuer's common stock on a one-for-one basis. The payment of such shares has been deferred in accordance with the Reporting Person's election pursuant to the Issuer's non-employee director deferral program.

These Restricted Stock Units, which were awarded on April 24, 2025 pursuant to the Issuer's 2017 Long-Term Incentive Plan, vested on April 24, 2026 and were settled in shares of the Issuer's common stock on a one-for-one basis.

These Restricted Stock Units, which were awarded on April 24, 2025 pursuant to the Issuer's 2017 Long-Term Incentive Plan, vested on April 24, 2026 and were settled in shares of the Issuer's common stock on a one-for-one basis.

These Restricted Stock Units, which were awarded on April 24, 2025 pursuant to the Issuer's 2017 Long-Term Incentive Plan, vested on April 24, 2026 and were settled in shares of the Issuer's common stock on a one-for-one basis. The payment of such shares has been deferred in accordance with the Reporting Person's election pursuant to the Issuer's non-employee director deferral program.

These Restricted Stock Units, which were awarded on April 24, 2025 pursuant to the Issuer's 2017 Long-Term Incentive Plan, vested on April 24, 2026 and were settled in shares of the Issuer's common stock on a one-for-one basis.

Each Restricted Stock Unit, awarded pursuant to the Issuer's 2017 Long-Term Incentive Plan, represents a contingent right to receive one share of the Issuer's common stock. Restricted Stock Units will be converted into 414 shares of the Issuer's common stock on April 23, 2027, and the payment of such shares will be deferred in accordance with the Reporting Person's election pursuant to the Issuer's non-employee director deferral program.

Each Restricted Stock Unit, awarded pursuant to the Issuer's 2017 Long-Term Incentive Plan, represents a contingent right to receive one share of the Issuer's common stock. Restricted Stock Units will be converted into 414 shares of the Issuer's common stock on April 23, 2027, and the payment of such shares will be deferred in accordance with the Reporting Person's election pursuant to the Issuer's non-employee director deferral program.

Each Restricted Stock Unit, awarded pursuant to the Issuer's 2017 Long-Term Incentive Plan, represents a contingent right to receive one share of the Issuer's common stock. Restricted Stock Units will be converted into 414 shares of the Issuer's common stock on April 23, 2027.

Each Restricted Stock Unit, awarded pursuant to the Issuer's 2017 Long-Term Incentive Plan, represents a contingent right to receive one share of the Issuer's common stock. Restricted Stock Units will be converted into 414 shares of the Issuer's common stock on April 23, 2027.

Each Restricted Stock Unit, awarded pursuant to the Issuer's 2017 Long-Term Incentive Plan, represents a contingent right to receive one share of the Issuer's common stock. Restricted Stock Units will be converted into 414 shares of the Issuer's common stock on April 23, 2027.

Each Restricted Stock Unit, awarded pursuant to the Issuer's 2017 Long-Term Incentive Plan, represents a contingent right to receive one share of the Issuer's common stock. Restricted Stock Units will be converted into 414 shares of the Issuer's common stock on April 23, 2027.

Each Restricted Stock Unit, awarded pursuant to the Issuer's 2017 Long-Term Incentive Plan, represents a contingent right to receive one share of the Issuer's common stock. Restricted Stock Units will be converted into 591 shares of the Issuer's common stock on April 23, 2027, and the payment of such shares will be deferred in accordance with the Reporting Person's election pursuant to the Issuer's non-employee director deferral program.

Represents shares of the Issuer's common stock withheld to satisfy tax withholding obligations in connection with the vesting of Restricted Stock Units granted pursuant to the Issuer's 2017 Long-Term Incentive Plan.

These Restricted Stock Units, which were awarded on March 23, 2023 pursuant to the Issuer's 2017 Long-Term Incentive Plan, vest ratably over three years and were settled in shares of the Issuer's common stock on a one-for-one basis.

These Restricted Stock Units, which were awarded on March 23, 2023 pursuant to the Issuer's 2017 Long-Term Incentive Plan, vest ratably over three years and were settled in shares of the Issuer's common stock on a one-for-one basis.

These Restricted Stock Units, which were awarded on March 23, 2023 pursuant to the Issuer's 2017 Long-Term Incentive Plan, vest ratably over three years and were settled in shares of the Issuer's common stock on a one-for-one basis.

Represents shares of the Issuer's common stock withheld to satisfy tax withholding obligations in connection with the vesting of Restricted Stock Units granted pursuant to the Issuer's 2017 Long-Term Incentive Plan.

Each Restricted Stock Unit, awarded pursuant to the Issuer's 2017 Long-Term Incentive Plan, represents a contingent right to receive one share of the Issuer's common stock. The Restricted Stock Units vest ratably over three years beginning on the first anniversary of the grant date.

These Restricted Stock Units, which were awarded on March 23, 2023 pursuant to the Issuer's 2017 Long-Term Incentive Plan, vest ratably over three years and were settled in shares of the Issuer's common stock on a one-for-one basis.

These Restricted Stock Units, which were awarded on March 23, 2023 pursuant to the Issuer's 2017 Long-Term Incentive Plan, vest ratably over three years and were settled in shares of the Issuer's common stock on a one-for-one basis.

These Restricted Stock Units, which were awarded on March 23, 2023 pursuant to the Issuer's 2017 Long-Term Incentive Plan, vest ratably over three years and were settled in shares of the Issuer's common stock on a one-for-one basis.

Each Restricted Stock Unit, awarded pursuant to the Issuer's 2017 Long-Term Incentive Plan, represents a contingent right to receive one share of the Issuer's common stock. The Restricted Stock Units vest ratably over three years beginning on the first anniversary of the grant date.

Each Restricted Stock Unit, awarded pursuant to the Issuer's 2017 Long-Term Incentive Plan, represents a contingent right to receive one share of the Issuer's common stock. The Restricted Stock Units vest ratably over three years beginning on the first anniversary of the grant date.

Represents shares of the Issuer's common stock withheld to satisfy tax withholding obligations in connection with the vesting of Restricted Stock Units granted pursuant to the Issuer's 2017 Long-Term Incentive Plan.