Amrize Ltd (AMRZ) Chief People Officer purchases 5,260 shares in open-market buy

Rhea-AI Filing Summary

Amrize Ltd Chief People Officer Clark Stephen S reported an open-market purchase of 5,260 Ordinary Shares of Amrize Ltd on August 11, 2026 at $47.31 per share. Following this transaction, he directly holds 10,637 Ordinary Shares, which includes 117 shares previously acquired under the Amrize Ltd 2025 Employee Stock Purchase Plan on June 30, 2026.

Insider Trade Summary

Net Buyer: 5,260 shares

Net Buy 1 txn

Insider Clark Stephen S

Role Chief People Officer

Bought 5,260 shs ($249K)

Type	Security	Shares	Price	Value
Purchase	Ordinary Shares F1	5,260	$47.31	$249K

Holdings After Transaction: Ordinary Shares — 10,637 shares (Direct)

Footnotes (1)

1. F1. Includes 117 shares acquired under the Amrize Ltd 2025 Employee Stock Purchase Plan on June 30, 2026.

Key Figures

Shares purchased: 5,260 Ordinary Shares Purchase price: $47.31 per share Total direct holdings after transaction: 10,637 Ordinary Shares +1 more

4 metrics

Shares purchased 5,260 Ordinary Shares Open-market or private purchase on August 11, 2026

Purchase price $47.31 per share Price for 5,260 Ordinary Shares bought on August 11, 2026

Total direct holdings after transaction 10,637 Ordinary Shares Direct ownership following the August 11, 2026 purchase

ESPP shares included in holdings 117 shares Acquired under the Amrize Ltd 2025 Employee Stock Purchase Plan on June 30, 2026

Key Terms

Ordinary Shares, Employee Stock Purchase Plan, Rule 10b5-1

3 terms

Ordinary Shares financial

"reported an open-market purchase of 5,260 Ordinary Shares of Amrize Ltd"

Ordinary shares are a type of ownership stake in a company, giving shareholders a right to participate in the company’s profits and decision-making through voting. They are similar to owning a piece of a business, and their value can rise or fall based on the company's performance. Investors buy ordinary shares to potentially earn dividends and benefit from the company's growth over time.

Employee Stock Purchase Plan financial

"acquired under the Amrize Ltd 2025 Employee Stock Purchase Plan on June 30, 2026"

An employee stock purchase plan is a company program that lets workers buy shares through small payroll deductions, often at a discount to the market price and after a set offering period. Think of it like a workplace savings plan that turns into ownership: it encourages employees to share in the company’s success and can create predictable buying or selling of stock that investors watch because it affects supply, demand and employee incentives.

Rule 10b5-1 regulatory

"The filing’s Rule 10b5-1 checkbox is not marked as affirming a trading plan"

Rule 10b5-1 is a regulation that allows company insiders to buy or sell their shares at predetermined times, even if they have access to non-public information. It acts like setting a schedule in advance for transactions, helping prevent accusations of unfair trading. This rule provides a way for insiders to plan trades transparently, giving investors confidence that these transactions are not based on hidden information.

FAQ

What transaction did Amrize (AMRZ) insider Clark Stephen S report?

Clark Stephen S, Chief People Officer of Amrize Ltd, reported purchasing 5,260 Ordinary Shares on August 11, 2026. The shares were bought in an open-market or private transaction at $47.31 per share, increasing his direct ownership stake.

How many Amrize (AMRZ) shares does Clark Stephen S own after this Form 4?

After the reported transaction, Clark Stephen S directly owns 10,637 Ordinary Shares of Amrize Ltd. This total includes 117 shares that were acquired earlier under the Amrize Ltd 2025 Employee Stock Purchase Plan on June 30, 2026.

At what price did Clark Stephen S buy Amrize (AMRZ) shares on August 11, 2026?

On August 11, 2026, Clark Stephen S purchased 5,260 Ordinary Shares of Amrize Ltd at a price of $47.31 per share. The Form 4 characterizes this as a purchase in an open-market or private transaction.

Does the Amrize (AMRZ) Form 4 include Employee Stock Purchase Plan shares?

Yes. The post-transaction holdings of 10,637 shares include 117 shares acquired under the Amrize Ltd 2025 Employee Stock Purchase Plan on June 30, 2026, as disclosed in the footnote linked to the holdings figure.

Were the Amrize (AMRZ) insider transactions reported under a Rule 10b5-1 plan?

The filing’s Rule 10b5-1 checkbox is not marked as affirming a trading plan. The Form 4 characterizes the transaction as a purchase, without indicating that it was executed under a Rule 10b5-1 trading arrangement.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Form 4 Insider Transactions: What Each Field Means →

Available on EDGAR 08/13/2026 - 11:47 AM Accepted by SEC EDGAR 08/13/2026 - 11:46 AM Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Clark Stephen S

(Last) (First) (Middle)

GRAFENAUWEG 8

(Street)

ZUG 6300

(City) (State) (Zip)

SWITZERLAND

(Country)

2. Issuer Name and Ticker or Trading Symbol
Amrize Ltd [ AMRZ ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief People Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
08/11/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Ordinary Shares	08/11/2026		P		5,260	A	$47.31	10,637(1)	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Includes 117 shares acquired under the Amrize Ltd 2025 Employee Stock Purchase Plan on June 30, 2026.

	Hans Weinburger, Attorney-in-Fact	08/13/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)