#1 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices within $1.00 ranging from $154.50 to $154.69 inclusive. The reporting person undertakes to provide Westinghouse Air Brake Technologies Corporation ("Wabtec"), any security holder of Wabtec, 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 range set forth in footnote (1) to this Form 4.

#1 The shares of common stock reported are issuable to the reporting person upon vesting of restricted stock units that represent the right to receive one share of common stock. The restricted stock units vest in three annual installments commencing on May 1, 2025, subject to acceleration upon the date of termination of the reporting person's employment with the company by reason of death, disability or retirement or upon a change in control of the company. The company will issue the shares of common stock represented by the units to the reporting person or, if applicable, his or her estate, as soon as administratively practicable after the units become vested.

#1 Shares vest on the third anniversary of grant date.

#2 Fair Market Value of the stock on July 9, 2024 was $157.47 per share.

#1 The shares of common stock reported are issuable to the reporting person upon vesting of restricted stock units that represent the right to receive one share of common stock. The restricted stock units vest in three annual installments commencing on June 1, 2025, subject to acceleration upon the date of termination of the reporting person's employment with the company by reason of death, disability or retirement or upon a change in control of the company. The company will issue the shares of common stock represented by the units to the reporting person or, if applicable, his or her estate, as soon as administratively practicable after the units become vested.