FRONTIER CAPITAL MANAGEMENT CO LLC

Position in JHX — James Hardie Industries plc

CIK 351173 Boston, MA

Position in JHX

as of Mar 31, 2026 · filed May 15, 2026 Compact

Position Value

$12,759,915

+$2,097,569 QoQ

Shares Held

673,702

+31.1% QoQ

Ownership

0.116%

of shares outstanding

% of Portfolio

0.13%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Sep 2025

3 quarters on record

Voting authority Sole 76.23429943803046.ToString("F0")% Shared 0.ToString("F0")% None 23.765700561969535.ToString("F0")%

Basic Materials · as of Mar 31, 2026

FRONTIER CAPITAL MANAGEMENT CO LLC holds $161,882,928 across 3 Building Materials names. JHX ranks #3 (7.9% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	EXP	Eagle Materials Inc	610,654	$115,688,400
2	KNF	Knife River Corp	409,487	$33,434,613
3	JHX	James Hardie Industries plc This page	673,702	$12,759,915

3 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$12,759,915	673,702	+31.1%	Shares	Sole	2026-05-15
2025-12-31	$10,662,346	513,848	+138.0%	Shares	Sole	2026-02-17
2025-09-30	$4,146,901	215,872	—	Shares	Sole	2025-11-14
No filing history on record for this holder in this stock.