SIMPLEX TRADING, LLC

Position in AMRZ — Amrize Ltd

CIK 1488542 CHICAGO, IL

Position in AMRZ

as of Jun 30, 2026 · filed Aug 12, 2026 Compact

Position Value

$1,026,931

+$36,442 QoQ

Shares Held

19,267

+9.0% QoQ

Ownership

0.004%

of shares outstanding

% of Portfolio

0.03%

of 13F equity value

Holder Rank

#258

of 461 holders

Holding Since

Sep 2025

4 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Basic Materials · as of Jun 30, 2026

SIMPLEX TRADING, LLC holds $2,389,068 across 6 Building Materials names. AMRZ ranks #1 (43.0% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	AMRZ	Amrize Ltd This page	19,267	$1,026,931
2	MLM	Martin Marietta Materials Inc	1,606	$926,180
3	JHX	James Hardie Industries plc	14,523	$380,212
4	EXP	Eagle Materials Inc	190	$42,750
5	TTAM	Titan America SA	692	$12,912
6	KNF	Knife River Corp	1	$83

4 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$1,026,931	19,267	+9.0%	Shares	Sole	2026-08-12
2026-03-31	$990,489	17,681	+11.4%	Shares	Sole	2026-05-14
2025-12-31	$858,574	15,876	+410.0%	Shares	Sole	2026-02-11
2025-09-30	$151,073	3,113	—	Shares	Sole	2025-11-12
No filing history on record for this holder in this stock.