v3.26.1
Share-Based Compensation (Tables)
 12 Months Ended
Mar. 31, 2026
Share-Based Payment Arrangement [Abstract]  
Schedule of Share-Based Compensation Expense
Total share-based compensation expense consists of the following:
 
Years Ended March 31
(Millions of US dollars)202620252024
Liability Awards$9.2 $2.7 $17.3 
Equity Awards38.0 23.0 28.2 
Total share-based compensation expense$47.2 $25.7 $45.5 
Schedule of Stock Options Roll Forward
The following summarizes the Company’s activity related to stock options assumed and replaced in the acquisition during the year ended March 31, 2026:
Outstanding Options
Number of OptionsWeighted Average
Exercise Price (US$)
Acquisition replacement awards5,838,003 12.80 
Exercised(140,105)12.43 
Forfeited— — 
Balance at March 31, 2026
5,697,898 12.81 
Options exercisable at March 31, 2026
5,641,523 12.71 
The following summarizes the Company’s stock options activity during the noted period:
Outstanding Options
Number of OptionsWeighted Average
Exercise Price (A$)
Balance at March 31, 2024
269,221 33.05 
Granted— — 
Balance at March 31, 2025
269,221 33.05 
Granted— — 
Balance at March 31, 2026
269,221 33.05 
Options exercisable at March 31, 2026
269,221 33.05 
Schedule of Unvested Restricted Stock Units Roll Forward
The following summarizes the Company’s activity related to RSUs assumed and replaced in the acquisition during the year ended March 31, 2026:
(Units)2020 Omnibus
Incentive
Compensation Plan		Weighted Average Fair
Value at Grant
Date (US$)
Acquisition replacement awards1,502,529 26.82 
Vested(1,173,547)26.82 
Forfeited(23,524)26.82 
Outstanding at March 31, 2026
305,458 26.82 
The following summarizes the Company’s activity related to CSUs assumed and replaced in the acquisition during the year ended March 31, 2026:
(Units)2020 Omnibus
Incentive
Compensation Plan
Acquisition replacement awards1,453,047 
Vested(1,134,920)
Forfeited(22,748)
Outstanding at March 31, 2026
295,379 
Summary of Stock Options Available for Grant
The following summarizes the Company’s shares available for grant as options, RSUs or other equity instruments under the LTIP and 2001 Plan:
 
Shares
Available for
Grant
Balance at March 31, 2024
17,779,070 
Granted(1,175,352)
Balance at March 31, 2025
16,603,718 
Granted(4,031,233)
Balance at March 31, 2026
12,572,485 
Restricted Stock Unit Activity
The following summarizes the Company’s RSU activity:
(Units)Service
Vesting
(2001 Plan)		Performance
Vesting
(LTIP)		Market
Conditions (LTIP)		TotalWeighted
Average Fair
Value at Grant
Date (A$)
Outstanding at March 31, 2024
1,227,652 444,902 1,113,651 2,786,205 33.36 
Granted527,577 250,826 396,949 1,175,352 45.57 
Vested(532,445)(104,434)(1,490)(638,369)35.86 
Forfeited(121,585)(5,609)(322,022)(449,216)28.64 
Outstanding at March 31, 2025
1,101,199 585,685 1,187,088 2,873,972 38.64 
Granted1,719,029 1,010,080 1,302,124 4,031,233 27.04 
Vested(529,383)(186,024)— (715,407)38.50 
Forfeited(163,203)(371,156)(642,485)(1,176,844)29.57 
Outstanding at March 31, 2026
2,127,642 1,038,585 1,846,727 5,012,954 31.46 
Assumptions Used to Fair Value Restricted Stock Grants
The following includes the assumptions used to fair value the RSU grants (market condition):
Vesting Condition:MarketMarketMarketMarket
 FY26FY26FY26FY25
Date of grant12/18/202510/30/20259/2/20258/17/2024
Dividend yield (per annum)— %— %— %— %
Expected volatility45.9 %44.0 %44.6 %37.9 %
Risk free interest rate3.5 %3.6 %3.6 %3.9 %
Expected life in years2.72.83.03.0
JHX stock price at grant date (A$)29.9532.8330.1351.99
Number of restricted stock units654,899219,775427,450396,949
Schedule of Fair Value of Restricted Stock Units Vested
The following presents the total fair value of all of our restricted stock units vested:
Years ended March 31
(Millions of US dollars)202620252024
Total fair value vested$15.6 $22.3 $16.1 
Cash Settled Units Activity
The following represents the activity related to the CSUs:
FY26FY25
Granted542,427 500,610 
Vested229,066 232,420 
Cancelled471,357 88,382