JHX SCHEDULE 13G/A: SEC filing

Wellington Management Group LLP and affiliated entities

Filed with the SEC on Aug 13, 2026 · accession 0000902219-26-000225

JHX filed a SCHEDULE 13G/A (schedule 13g/a) with the SEC on Aug 13, 2026. A report the company filed with the SEC (the US market regulator). The stock moved +0.1% by the first close after the filing.

Summary of the filing

Wellington Management Group LLP and affiliated entities filed a joint filing agreement as part of a Schedule 13G/A regarding their passive ownership position in James Hardie Industries plc common stock.

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Key details

Filer / institutional investorWellington Management Group LLP

Co-filerWellington Group Holdings LLP

Co-filerWellington Investment Advisors Holdings LLP

Co-filerWellington Management Company LLP

Issuer / subject companyJames Hardie Industries plc

Compliance managerMatthew Revell

How JHX stock reacted

Close before

$30.86

Aug 12, 2026

First close after

+0.10%

$30.89

5 trading days

-2.14%

$30.20

Since filing

-9.75%

$27.85

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Frequently asked questions

What did JHX file with the SEC on Aug 13, 2026?

JHX filed a SCHEDULE 13G/A (SEC filing). Wellington Management Group LLP and affiliated entities filed a joint filing agreement as part of a Schedule 13G/A regarding their passive ownership position in James Hardie Industries plc common stock.

How do I read a SCHEDULE 13G/A?

A report the company filed with the SEC (the US market regulator). Start with the summary, then the key amounts and names. Compare it with the company’s earlier filings.

Why are SEC filings important?

Public companies must tell the SEC about anything that can change their value — results, leadership changes, big deals, new shares, bankruptcy. Filings are the official source, often before the news. A SCHEDULE 13G/A (schedule 13g/a): A report the company filed with the SEC (the US market regulator).

How did JHX stock react to this filing?

JHX closed at $30.86 before the filing and $30.89 on Aug 13, 2026 (+0.10%). Five trading days later: $30.20 (-2.14%).

Other JHX SEC filings

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