![Mario Gross](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>)
Mario Gross
Chief Operating Officer at
Firestone Building Products Co. LLC
Net worth: 2 M $ as of 2026-06-29
Profile
Mario Gross is currently Chief Operating Officer at Amrize Building Envelope LLC since 2024 and Chief Supply Chain Officer at Amrize Ltd. since 2025.
Former roles include Chief Procurement Officer at Holcim Ltd. from 2020 to 2024, Non-Independent Non-Executive Director at Ambuja Cements Ltd. in 2022, President, CEO & Executive Director at Malayan Cement Bhd.
in 2018, Non-Executive Director at Holcim Philippines, Inc. in 2018, Head-Global Procurement, Quality & Sustainability at Sika AG from 2013 to 2017, Head-Procurement at Sika AG from 2007 to 2011, Managing Director at Sika (Thailand) Ltd., and Non-Executive Director at Holcim Philippines, Inc. Education includes graduate studies at the University of Strathclyde and undergraduate and graduate studies at Universität des Saarlandes.
Known holdings in public companies
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
0.01% | 2026-05-19 | 34,747 ( 0.01% ) | 2 M $ | 2026-06-29 |
Mario Gross active positions
| Companies | Position | Start |
|---|---|---|
Firestone Building Products Co. LLC
 Firestone Building Products Co. LLC Building ProductsProducer Manufacturing Manufactures and supplies roofing and building envelope solutions | Chief Operating Officer | 2023-12-31 |
Former positions of Mario Gross
| Companies | Position | End |
|---|---|---|
| HOLCIM LTD | Corporate Officer/Principal | 2023-12-31 |
| AMBUJA CEMENTS | Director/Board Member | 2022-09-15 |
| HOLCIM PHILIPPINES, INC. | Director/Board Member | 2018-11-28 |
| SIKA AG | Corporate Officer/Principal | 2016-12-31 |
| SIKA AG | Corporate Officer/Principal | 2010-12-31 |
Training of Mario Gross
Experiences
Positions held
Active
Inactive
Listed companies
Private companies
Connections
29
1st degree connections
9
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 9 |
|---|---|
Malayan Cement Bhd.
 Malayan Cement Bhd. Construction MaterialsNon-Energy Minerals Manufactures and sells cement, ready-mixed concrete & aggregate products | Non-Energy Minerals |
Ambuja Cements Ltd.
 Ambuja Cements Ltd. Construction MaterialsNon-Energy Minerals Manufactures and markets cement | Non-Energy Minerals |
Sika AG
 Sika AG Chemicals: Major DiversifiedProcess Industries Manufactures and distributes chemicals | Process Industries |
Holcim Philippines, Inc.
 Holcim Philippines, Inc. Construction MaterialsNon-Energy Minerals Manufactures and wholesales cement and clinker | Non-Energy Minerals |
University of Strathclyde
 University of Strathclyde Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Universität des Saarlandes
 Universität des Saarlandes Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Firestone Building Products Co. LLC
Firestone Building Products Co. LLC Building ProductsProducer Manufacturing Manufactures and supplies roofing and building envelope solutions | Producer Manufacturing |
Holcim Ltd.
 Holcim Ltd. Construction MaterialsNon-Energy Minerals Manufactures, supplies cement, ready-mix concrete and aggregates | Non-Energy Minerals |
Sika (Thailand) Ltd.
 Sika (Thailand) Ltd. Industrial SpecialtiesProcess Industries Manufactures and distributes chemicals | Process Industries |
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