James Hardie Industries plc (JHX) Ownership
JHX ownership summary
as of October 18, 2026- Institutions
- 50.4% of shares outstanding
- Insiders
- 0.42% of shares outstanding
- Shares outstanding
- 580.5M
- Float
- 548.8M shares available to trade
- Short interest
- 4.48% 25.9M shares short
- Days to cover
- 1.85 short interest up 152.0% vs prior month
- Institutions 50.38%
- Insiders 0.42%
- Other investors 49.21%
JHX top institutional holders
5 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | TOBAM S.A.S. | <0.01% | 6,128 | $158,225 | −61,996 (−91.0%) | June 30, 2026 |
| 2 | Byrne Asset Management LLC | 0.00% | 260 | $6,713 | −60 (−18.8%) | June 30, 2026 |
| 3 | Huntington National Bank | 0.00% | 1 | $26 | — | June 30, 2026 |
| 4 | Scopus Asset Management, LLC | 0.00% | — | — | −550,000 (−100.0%) | June 30, 2026 |
| 5 | Quadrature Capital Limited | 0.00% | — | — | −17,253 (−100.0%) | March 31, 2026 |
Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 5, 0 holders added 0 shares and 4 cut 629K.
JHX top mutual fund and ETF holders
7 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | Core Series - MFS Prudent Cap FAM I €Acc | 0.01% | 77K | $2.0M | +76,754 (0.0%) | September 30, 2026 |
| 2 | Russell Inv US Strategic Equity S | 0.01% | 44K | $1.1M | — | August 31, 2026 |
| 3 | Mercer Global Sel Eq M-2 USD | 0.01% | 41K | $1.0M | −3,141 (−7.2%) | July 31, 2026 |
| 4 | Russell Inv US Small Cap Equity Y | 0.01% | 36K | $922,006 | — | August 31, 2026 |
| 5 | Russell Inv US Small Cap Equity | <0.01% | 8,673 | $223,937 | — | August 31, 2026 |
| 6 | Anchor Ser Tr SA PGI Asset Allocation 1 | <0.01% | 3,270 | $84,431 | — | August 31, 2026 |
| 7 | PIMCO RAFI Dyn Multi-Factor US Eq ETF | <0.01% | 2,744 | $70,850 | — | September 30, 2026 |
Funds report holdings monthly or quarterly; dates differ by fund.
JHX shares outstanding
Year-end shares outstanding, adjusted for splits.
Who owns JHX
Institutional investors own 50.4% of James Hardie Industries's shares and insiders 0.42%. The largest holder is TOBAM S.A.S. with <0.01% of the shares (6,128), as of June 30, 2026. Among the top 5 institutions, 0 added shares and 4 reduced their stake in the latest filings. Short interest is 4.48% of the float, or 1.85 days of average trading volume. The share count rose 30.8% since 2014.
Related: JHX analyst forecast, JHX key metrics. See the JHX stock overview for the latest quote and news.
JHX ownership FAQ
Who owns the most James Hardie Industries stock?
The largest shareholders of James Hardie Industries are TOBAM S.A.S. (<0.01%), Byrne Asset Management LLC (0.00%), Huntington National Bank (0.00%), Scopus Asset Management, LLC (0.00%), Quadrature Capital Limited (0.00%).
What percentage of James Hardie Industries is owned by institutions?
Institutions hold 50.4% of James Hardie Industries's shares outstanding; insiders hold 0.42%.
Which funds own James Hardie Industries?
The largest fund holders of James Hardie Industries are Core Series - MFS Prudent Cap FAM I €Acc (0.01%), Russell Inv US Strategic Equity S (0.01%), Mercer Global Sel Eq M-2 USD (0.01%), Russell Inv US Small Cap Equity Y (0.01%), Russell Inv US Small Cap Equity (<0.01%).
What is James Hardie Industries's short interest?
25.9M shares of James Hardie Industries were sold short, 4.48% of the float; at the average daily volume it would take 1.85 days to cover.
How many shares of James Hardie Industries are outstanding?
James Hardie Industries has 580.5M shares outstanding, of which 548.8M are in the public float.