Amrize strategy chief buys 2,510 shares at $46.92

Amrize Ltd (AMRZ) reported that Chief Strategy & M&A Officer Samuel Jonas Poletti purchased 2,510 Ordinary Shares on 2026-08-17 in a direct ownership transaction.

Rhea-AI Filing Summary

Amrize Ltd (AMRZ) reported that Chief Strategy & M&A Officer Samuel Jonas Poletti purchased 2,510 Ordinary Shares on 2026-08-17 in a direct ownership transaction. The shares were bought at $46.92 per share, for a total direct holding of 10,155 shares after the trade. According to a footnote, the trade was executed in Swiss Francs at CHF 37.97 per share and converted to U.S. dollars using the transaction-date exchange rate, and the filing indicates the trade was not made under a Rule 10b5-1 trading plan.

Insider Trade Summary

Net Buyer: 2,510 shares

Net Buy 1 txn

Insider Poletti Samuel Jonas

Role Chief Strategy & M&A Officer

Bought 2,510 shs ($118K)

Type	Security	Shares	Price	Value
Purchase	Ordinary Shares F1	2,510	$46.92	$118K

Holdings After Transaction: Ordinary Shares — 10,155 shares (Direct)

Footnotes (1)

1. F1. The purchase was made in Swiss Francs at a price of CHF 37.97 per share, and such price was converted into US Dollars using the transaction date exchange rate (USD 1.00 = CHF 0.8092).

Key Figures

Shares purchased: 2,510 shares Purchase price (USD): $46.92 per share Purchase price (CHF): CHF 37.97 per share +3 more

6 metrics

Shares purchased 2,510 shares Ordinary Shares bought on 2026-08-17 by Chief Strategy & M&A Officer

Purchase price (USD) $46.92 per share Price for the 2,510 Ordinary Shares purchased

Purchase price (CHF) CHF 37.97 per share Execution currency price before conversion to U.S. dollars

Exchange rate USD 1.00 = CHF 0.8092 Transaction-date exchange rate used to convert price to U.S. dollars

Shares held after transaction 10,155 shares Total direct Ordinary Shares held by Samuel Jonas Poletti after the purchase

Net buy shares 2,510 shares Net share change across all reported transactions in this Form 4

Key Terms

Ordinary Shares, Rule 10b5-1, beneficial ownership, transaction date exchange rate, +1 more

5 terms

Ordinary Shares financial

"security_title: "Ordinary Shares""

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.

Rule 10b5-1 regulatory

"transactions were made pursuant to a 10b5-1 or pre-arranged trading"

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.

beneficial ownership financial

"disclaimers of beneficial ownership"

Beneficial ownership means the person or entity that actually enjoys the benefits of owning shares or other assets — such as receiving dividends, voting rights, or price gains — even if the legal title is held in another name. For investors it matters because knowing who truly controls and profits from a company reveals who can influence decisions, exposes potential conflicts of interest or hidden concentration of power, and affects transparency and risk in the stock.

transaction date exchange rate financial

"converted into US Dollars using the transaction date exchange rate"

direct ownership financial

"ownership_type: "direct""

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transaction did AMRZ report for Samuel Jonas Poletti?

Amrize Ltd reported that Chief Strategy & M&A Officer Samuel Jonas Poletti purchased 2,510 Ordinary Shares on 2026-08-17. The transaction was a direct ownership buy at $46.92 per share, increasing his total direct holdings.

At what price were the AMRZ shares bought in the latest Form 4?

The reported purchase of Amrize Ltd (AMRZ) shares was made at $46.92 per share. A footnote explains the trade was executed in Swiss Francs at CHF 37.97 per share and then converted to U.S. dollars using the transaction-date exchange rate.

How many AMRZ shares does Samuel Jonas Poletti hold after this transaction?

After the reported purchase, Samuel Jonas Poletti directly holds 10,155 Ordinary Shares of Amrize Ltd (AMRZ). This figure reflects his total direct ownership position immediately following the 2,510-share open-market or private purchase reported in the Form 4.

Was the recent AMRZ insider trade made under a Rule 10b5-1 plan?

The filing indicates the transaction was not made under a Rule 10b5-1 trading plan. The Rule 10b5-1 checkbox is explicitly unchecked, so the reported 2,510-share purchase was not executed pursuant to a pre-arranged trading program.

In what currency was the AMRZ insider trade executed and how was it converted?

The Amrize Ltd (AMRZ) insider purchase was executed in Swiss Francs at CHF 37.97 per share. The reported U.S. dollar price of $46.92 per share reflects conversion using the transaction-date exchange rate of USD 1.00 = CHF 0.8092.

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

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Available on EDGAR 08/18/2026 - 12:29 PM EDT Accepted by SEC EDGAR 08/18/2026 - 12:29 PM EDT 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^*

Poletti Samuel Jonas

(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 Strategy & M&A Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
08/17/2026

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	08/17/2026		P		2,510	A	$46.92(1)	10,155	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. The purchase was made in Swiss Francs at a price of CHF 37.97 per share, and such price was converted into US Dollars using the transaction date exchange rate (USD 1.00 = CHF 0.8092).

Remarks:

	/s/ Hans Weinburger, Attorney-in-Fact	08/18/2026
	** 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)