X0609 4 2026-08-21 0 0001159152 James Hardie Industries plc JHX 0001594032 Singh Jesse G false 303 E. WACKER DR. STE. 2500 CHICAGO IL 60601 1 0 0 0 0 Ordinary shares 2026-08-21 4 S 0 103400 30.22 D 0 I By Trust Ordinary shares 2026-08-21 4 S 0 118057 30.34 D 381683 I By Trust Ordinary shares 2026-08-21 4 M 0 265000 11.23 A 382028 D Ordinary shares 2026-08-21 4 S 0 265000 30.19 D 117028 D Ordinary shares 2026-08-24 4 S 0 120000 30.08 D 261683 I By Trust Ordinary shares 2026-08-24 4 M 0 265100 11.23 A 382128 D Ordinary shares 2026-08-24 4 S 0 265100 30.23 D 117028 D Employee Stock Option (Right to Buy) 11.23 2026-08-21 4 M 0 265000 0 D 2030-06-16 Ordinary shares 265000 1699149 D Employee Stock Option (Right to Buy) 11.23 2026-08-24 4 M 0 265100 0 D 2030-06-16 Ordinary shares 265100 1434049 D The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $30.09 to $30.33 inclusive. The reporting person undertakes to provide full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote to the extent required by law. Represents ordinary shares held by The Jesse Singh 2024 Trust, for which the Reporting Person serves as grantor-trustee The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $30.22 to $30.43 inclusive. The reporting person undertakes to provide full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote to the extent required by law. Represents ordinary shares held by the Jesse Singh 2016 Irrevocable Trust, for which the Reporting Person's spouse serves as trustee Represents shares sold through a broker-assisted cashless exercise. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $29.86 to $30.45 inclusive. The reporting person undertakes to provide full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote to the extent required by law. The options were exercisable as of July 1, 2025, when they were assumed by the issuer in connection with its acquisition of The AZEK Company Inc. /s/ Aoife Rockett, as attorney-in-fact for Jesse Singh 2026-08-25