![John Mastalerz](data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="%231b1b1b" class="bi bi-person-fill" viewBox="0 0 16 16"><path d="M3 14s-1 0-1-1 1-4 6-4 6 3 6 4-1 1-1 1zm5-6a3 3 0 1 0 0-6 3 3 0 0 0 0 6"/></svg>)
Net worth: 2 M $ as of 31/05/2026
John A. Mastalerz currently serves as Treasurer, Director & Vice President at Xorail, Inc. He is Director at Wabtec Holding Corp., Wabtec UK Holdings Ltd., Wabtec UK Investments Ltd., and Wabtec UK Manufacturing Ltd. Since 2014, he has been Chief Accounting Officer & Senior Vice President at Westinghouse Air Brake Technologies Corp.
Formerly, Mr. Mastalerz was Principal Accounting Officer & Controller at H.J.
Heinz Co. from 2001 to 2013 and Senior Manager at PricewaterhouseCoopers LLP.
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
| 05/03/2026 | 7,593 ( 0% ) | 2 M $ | 31/05/2026 |
| Companies | Position | Start |
|---|---|---|
| WESTINGHOUSE AIR BRAKE TECHNOLOGIES CORPORATION | Comptroller/Controller/Auditor | 01/01/2014 |
Wabtec UK Holdings Ltd.
 Wabtec UK Holdings Ltd. Financial ConglomeratesFinance Functions as an investment holding company | Director/Board Member | - |
Wabtec UK Investments Ltd.
 Wabtec UK Investments Ltd. Financial ConglomeratesFinance Operates as a dormant company | Director/Board Member | 23/03/2018 |
Xorail, Inc.
 Xorail, Inc. Engineering & ConstructionIndustrial Services Provides signal and communication engineering services | Director/Board Member | - |
Wabtec Holding Corp.
 Wabtec Holding Corp. Auto Parts: OEMProducer Manufacturing Engaged in the development of locomotive products and components | Director/Board Member | - |
| Companies | Position | End |
|---|---|---|
| H.J. HEINZ COMPANY | Comptroller/Controller/Auditor | 01/12/2013 |
Wabtec UK Manufacturing Ltd.
 Wabtec UK Manufacturing Ltd. Trucks/Construction/Farm MachineryProducer Manufacturing Manufactures rail components, lifts, window frames, doors and panels | Director/Board Member | - |
PricewaterhouseCoopers LLP
 PricewaterhouseCoopers LLP Miscellaneous Commercial ServicesCommercial Services Provides auditing, assurance, consulting and tax & business consulting services | Corporate Officer/Principal | - |
Active
Inactive
Listed companies
Private companies
1st degree connections
1st degree companies
Male
Female
Members of the board
Executives
| Private companies | 8 |
|---|---|
H.J. Heinz Co.
 H.J. Heinz Co. Food: Major DiversifiedConsumer Non-Durables Produces processed food products | Consumer Non-Durables |
Westinghouse Air Brake Technologies Corp.
 Westinghouse Air Brake Technologies Corp. Trucks/Construction/Farm MachineryProducer Manufacturing Manufactures and distributes products for locomotives, freight cars, and passenger transit vehicles | Producer Manufacturing |
PricewaterhouseCoopers LLP
PricewaterhouseCoopers LLP Miscellaneous Commercial ServicesCommercial Services Provides auditing, assurance, consulting and tax & business consulting services | Commercial Services |
Xorail, Inc.
Xorail, Inc. Engineering & ConstructionIndustrial Services Provides signal and communication engineering services | Industrial Services |
Wabtec Holding Corp.
Wabtec Holding Corp. Auto Parts: OEMProducer Manufacturing Engaged in the development of locomotive products and components | Producer Manufacturing |
Wabtec UK Holdings Ltd.
Wabtec UK Holdings Ltd. Financial ConglomeratesFinance Functions as an investment holding company | Finance |
Wabtec UK Investments Ltd.
Wabtec UK Investments Ltd. Financial ConglomeratesFinance Operates as a dormant company | Finance |
Wabtec UK Manufacturing Ltd.
Wabtec UK Manufacturing Ltd. Trucks/Construction/Farm MachineryProducer Manufacturing Manufactures rail components, lifts, window frames, doors and panels | Producer Manufacturing |
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