LOOMIS SAYLES & CO L P

Position in AMRZ — Amrize Ltd

CIK 312348 BOSTON, MA

Position in AMRZ

as of Mar 31, 2026 · filed May 14, 2026 Compact

Position Value

$13,714,479

+$626,850 QoQ

Shares Held

244,814

+1.2% QoQ

Ownership

0.044%

of shares outstanding

% of Portfolio

0.02%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Jun 2025

4 quarters on record

Voting authority Sole 50.7601689445865.ToString("F0")% Shared 0.ToString("F0")% None 49.2398310554135.ToString("F0")%

Basic Materials · as of Mar 31, 2026

LOOMIS SAYLES & CO L P holds $42,861,573 across 5 Building Materials names. AMRZ ranks #2 (32.0% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	KNF	Knife River Corp	218,864	$17,870,245
2	AMRZ	Amrize Ltd This page	244,814	$13,714,479
3	JHX	James Hardie Industries plc	521,466	$9,876,565
4	EXP	Eagle Materials Inc	4,475	$847,788
5	VMC	Vulcan Materials CO	2,029	$552,496

4 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$13,714,479	244,814	+1.2%	Shares	Defined	2026-05-14
2025-12-31	$13,087,629	242,005	+4.6%	Shares	Defined	2026-02-12
2025-09-30	$11,229,307	231,389	+32.2%	Shares	Defined	2025-11-13
2025-06-30	$8,675,659	175,089	—	Shares	Defined	2025-08-13
No filing history on record for this holder in this stock.