#1 These securities were issued to the reporting person pursuant to the 2019 Equity Incentive Plan, which provided for the conversion of performance units into a number of shares of common stock based on the Issuer's performance over a three year designated performance period.

#1 These securities were issued to the reporting person pursuant to the 2019 Equity Incentive Plan, which provided for the conversion of performance units into a number of shares of common stock based on the Issuer's performance over a three year designated performance period.

#1 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $182.13 to $182.215, inclusive. The reporting person undertakes to provide to Alamo Group Inc, any security holder of Alamo Group Inc, 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 footnote(1) to this Form 4.

#1 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $195.00 to $195.92, inclusive. The reporting person undertakes to provide to Alamo Group Inc, any security holder of Alamo Group Inc, 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 footnote(1) and (2) to this Form 4.

#2 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $196.06 to $197.01, inclusive.