Amrize CTO buys 1,500 company shares

Amrize Ltd Chief Technology Officer Brouwer Roald purchased 1,500 Ordinary Shares on 2026-08-11 in an open-market transaction.

Rhea-AI Filing Summary

Amrize Ltd Chief Technology Officer Brouwer Roald purchased 1,500 Ordinary Shares on 2026-08-11 in an open-market transaction. The shares were bought at $46.36 per share, a price converted from CHF 37.60 using the transaction-date exchange rate, bringing his direct holdings to 21,490 shares.

Insider Trade Summary

Net Buyer: 1,500 shares

Net Buy 1 txn

Insider Brouwer Roald

Role Chief Technology Officer

Bought 1,500 shs ($70K)

Type	Security	Shares	Price	Value
Purchase	Ordinary Shares F1	1,500	$46.36	$70K

Holdings After Transaction: Ordinary Shares — 21,490 shares (Direct)

Footnotes (1)

1. F1. The purchase was made in Swiss Francs at a price of CHF 37.60 per share, and such price was converted into US Dollars using the transaction date exchange rate (USD 1.00 = CHF 0.8111).

Key Figures

Shares purchased: 1,500 shares Purchase price per share (USD): $46.36 Price per share (CHF): CHF 37.60 +2 more

5 metrics

Shares purchased 1,500 shares Ordinary Shares bought on 2026-08-11

Purchase price per share (USD) $46.36 Converted from CHF 37.60 per share using stated FX rate

Price per share (CHF) CHF 37.60 Original Swiss Franc purchase price per share

Exchange rate USD 1.00 = CHF 0.8111 Rate used to convert CHF price into USD

Shares owned after transaction 21,490 shares Direct Ordinary Share holdings of Brouwer Roald post-purchase

Key Terms

Ordinary Shares, open market or private transaction, Rule 10b5-1, non-derivative

4 terms

Ordinary Shares financial

"The transaction involves 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.

open market or private transaction financial

"Purchase in open market or private transaction."

Rule 10b5-1 regulatory

"The filing’s Rule 10b5-1 checkbox is not checked."

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.

non-derivative financial

"The transaction involves Ordinary Shares classified as non-derivative."

FAQ

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

What insider transaction did Amrize Ltd (AMRZ) report for Brouwer Roald?

Brouwer Roald, Chief Technology Officer of Amrize Ltd, purchased 1,500 Ordinary Shares on 2026-08-11. This open-market transaction increased his direct ownership to 21,490 shares following the purchase.

At what price were the Amrize Ltd (AMRZ) shares purchased in this Form 4?

The reported purchase price was $46.36 per share, converted from a Swiss Franc price of CHF 37.60. The conversion used the transaction-date exchange rate of USD 1.00 = CHF 0.8111, as disclosed in the footnote.

How many Amrize Ltd (AMRZ) shares does Brouwer Roald hold after this transaction?

After purchasing 1,500 Ordinary Shares, Brouwer Roald directly holds 21,490 Amrize Ltd shares. The Form 4 lists this figure as his total direct ownership immediately following the reported transaction.

Was the Amrize Ltd (AMRZ) insider trade made under a Rule 10b5-1 plan?

The filing’s Rule 10b5-1 checkbox is not checked, and no footnote states that the trade was made under a trading plan. The reported purchase is therefore not described as plan-based in this disclosure.

What type of security did the Amrize Ltd (AMRZ) insider purchase?

The transaction involves Ordinary Shares of Amrize Ltd. The Form 4 classifies it as a non-derivative open-market or private purchase, with direct ownership recorded after completion of the trade.

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

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Accepted by SEC EDGAR 08/13/2026 - 11:41 AM 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^*

Brouwer Roald

(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 Technology 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		1,500	A	$46.36(1)	21,490	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 37.60 per share, and such price was converted into US Dollars using the transaction date exchange rate (USD 1.00 = CHF 0.8111).

	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)