Stephen S. Clark

CIK: 0001632531

Transaction Breakdown

Open Market Buys (P)13 (100.0%)

High conviction signal

Open Market Sales (S)0 (0.0%)

Position reduction

Option Exercises (M)0 (0.0%)

Derivative conversions

Awards (A)0 (0.0%)

Compensation grants

Other (G, F, J, C, D, …)0 (0.0%)

Gifts, tax withholding, conversions, dispositions to the issuer and other codes

Companies & Roles (1)

AMRZ

Amrize Ltd

Officer

Discretionary Trading P&L

Holdings

Transaction History (13 total)

AMRZ
Amrize Ltd
Aug 11, 2026
Purchase(P)
Direct
5.3K shares at avg. $47.31$249K
AMRZ
Amrize Ltd
May 5, 2026
Purchase(P)
Direct
2 shares at avg. $52.75$113.518
AMRZ
Amrize Ltd
Aug 15, 2025
Purchase(P)
Direct
22 shares at avg. $51.78$1K
AMRZ
Amrize Ltd
Aug 15, 2025
Purchase(P)
Direct
100 shares at avg. $51.79$5K
AMRZ
Amrize Ltd
Aug 15, 2025
Purchase(P)
Direct
367 shares at avg. $51.80$19K
AMRZ
Amrize Ltd
Aug 15, 2025
Purchase(P)
Direct
301 shares at avg. $51.81$16K
AMRZ
Amrize Ltd
Aug 15, 2025
Purchase(P)
Direct
100 shares at avg. $51.63$5K
AMRZ
Amrize Ltd
Aug 15, 2025
Purchase(P)
Direct
1K shares at avg. $51.83$54K
AMRZ
Amrize Ltd
Aug 15, 2025
Purchase(P)
Direct
500 shares at avg. $51.84$26K
AMRZ
Amrize Ltd
Aug 15, 2025
Purchase(P)
Direct
1.1K shares at avg. $51.85$57K
AMRZ
Amrize Ltd
Aug 15, 2025
Purchase(P)
Direct
400 shares at avg. $51.86$21K
AMRZ
Amrize Ltd
Aug 15, 2025
Purchase(P)
Direct
1K shares at avg. $51.82$52K
AMRZ
Amrize Ltd
Aug 15, 2025
Purchase(P)
Direct
70 shares at avg. $51.63$4K

		Type	Shares	Price		Ownership
Aug 11, 2026	AMRZ Amrize Ltd	Purchase(P)	5,260	$47.31	$248,851	Direct
May 5, 2026	AMRZ Amrize Ltd	Purchase(P)	2	$52.75	$114	Direct
Aug 15, 2025	AMRZ Amrize Ltd	Purchase(P)	22	$51.78	$1,139	Direct
Aug 15, 2025	AMRZ Amrize Ltd	Purchase(P)	100	$51.79	$5,179	Direct
Aug 15, 2025	AMRZ Amrize Ltd	Purchase(P)	367	$51.80	$19,011	Direct
Aug 15, 2025	AMRZ Amrize Ltd	Purchase(P)	301	$51.81	$15,595	Direct
Aug 15, 2025	AMRZ Amrize Ltd	Purchase(P)	100	$51.63	$5,163	Direct
Aug 15, 2025	AMRZ Amrize Ltd	Purchase(P)	1,040	$51.83	$53,903	Direct
Aug 15, 2025	AMRZ Amrize Ltd	Purchase(P)	500	$51.84	$25,920	Direct
Aug 15, 2025	AMRZ Amrize Ltd	Purchase(P)	1,100	$51.85	$57,035	Direct
Aug 15, 2025	AMRZ Amrize Ltd	Purchase(P)	400	$51.86	$20,744	Direct
Aug 15, 2025	AMRZ Amrize Ltd	Purchase(P)	1,000	$51.82	$51,820	Direct
Aug 15, 2025	AMRZ Amrize Ltd	Purchase(P)	70	$51.63	$3,614	Direct

1-13 of 13 transactions

About Clark Stephen S

Clark Stephen S (SEC CIK 0001632531) files insider reports with the SEC as Chief People Officer of Amrize Ltd (AMRZ).

Signal8 holds 4 ownership filings by Clark Stephen S (1 Form 3, 3 Form 4), filed between Jun 24, 2025 and Aug 13, 2026. Those filings report 13 transactions, from Aug 15, 2025 to Aug 11, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on Clark Stephen S's filings is in ZUG.

Recent filings by Clark Stephen S

Aug 11, 2026: Open-market purchase of AMRZ shares (Form 4, code P).
May 5, 2026: Open-market purchase of AMRZ shares (Form 4, code P).
Aug 15, 2025: Open-market purchases of AMRZ shares (11 lines, Form 4, code P).

Other insiders filing for Amrize Ltd (AMRZ)

Nielsen Zane Michael, Chief Accounting Officer
Jenisch Jan Philipp, Chairman & CEO
Gibson Dwight Audley Konrad, Director
Sanche Jacques Wolf, Director
Singleton Denise R, Chief Legal Officer & Corp Sec
Forrest Nollaig, Chief Mktg & Corp Affairs Off

How to read Form 4 transaction codes