[Form 4] Amrize Ltd Insider Trading Activity

Rhea-AI Filing Summary

Jan Philipp Jenisch, who serves as Chairman & CEO and a director of Amrize Ltd (AMRZ), reported multiple purchases of the issuer's ordinary shares on 08/11/2025. The reporting person acquired 545,000 ordinary shares directly in several transactions priced roughly between $47.59 and $47.99. An additional 50,000 shares were acquired indirectly by the reporting persons spouse. Following these transactions, the filing shows 1,450,000 shares beneficially owned directly and 450,000 shares beneficially owned indirectly by the spouse. The prices reported reflect conversions from Swiss francs using an exchange rate of USD 1.00 = CHF 0.8084, and the filer offers to provide a full breakdown of the CHF-priced lots upon request.

Positive

• Chairman & CEO made multiple direct purchases totaling 545,000 ordinary shares
• Direct beneficial ownership increased to 1,450,000 shares
• Indirect acquisition by spouse reported (50,000 shares), with indirect holdings shown as 450,000
• Filer provided CHF-to-USD conversion details and offered to supply per-lot purchase breakdowns

Negative

• None.

Insights

Securities Analyst

TL;DR: CEO acquired 545,000 shares, raising direct ownership to 1,450,000; sizable insider purchases are materially noteworthy.

The Form 4 discloses multiple open-market purchases totaling 545,000 ordinary shares by Jan Philipp Jenisch at prices converted into USD between $47.59 and $47.99. Post-transaction direct beneficial ownership is reported as 1,450,000 shares, with an additional 50,000 shares acquired indirectly by the spouse (indirect holdings reported as 450,000 shares). The filing includes conversion detail from CHF and a commitment to provide per-lot breakdowns on request, which supports transparency for investors assessing the scale and timing of these purchases. Impact rating: 1.

Corporate Governance Expert

TL;DR: Transactions are properly disclosed on Form 4; spouse-held shares are reported as indirect ownership, consistent with Section 16 reporting norms.

The disclosure identifies the reporting person as both CEO and director and shows multiple purchases on the same transaction date with subsequent increases in reported direct and indirect holdings. The inclusion of a spouse-acquired block and the explicit offer to provide detailed CHF lot information indicate attention to compliance and transparency. This filing appears procedural and compliant, with no additional governance issues disclosed. Impact rating: 0.

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^*

Jenisch Jan Philipp

(Last) (First) (Middle)

GRAFENAUWEG 8

(Street)

ZUG V8 6300

(City) (State) (Zip)

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

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

X	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chairman & CEO

3. Date of Earliest Transaction (Month/Day/Year)
08/11/2025

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

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

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

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	08/11/2025		P		340,000	A	$47.99(1)	1,245,000	D
Ordinary Shares	08/11/2025		P		180,000	A	$47.96(2)	1,425,000	D
Ordinary Shares	08/11/2025		P		3,723	A	$47.59	1,428,723	D
Ordinary Shares	08/11/2025		P		21,277	A	$47.6	1,450,000	D
Ordinary Shares	08/11/2025		P		50,000	A	$47.5	450,000	I	By spouse

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 shares were purchased in multiple transactions at prices ranging from CHF 38.61 to CHF 39.00, inclusive. This amount represents the CHF 38.799 weighted average price of such transactions, and such price was converted into US Dollars using the transaction date exchange rate of (USD 1.00 = CHF 0.8084). The reporting person undertakes to provide full information regarding the number of shares purchased at each separate price upon request of the Securities and Exchange Commission, the Issuer, or a security holder of the Issuer.

2. The shares were purchased in multiple transactions at prices ranging from CHF 38.51 to CHF 38.99, inclusive. This amount represents the CHF 38.775 weighted average price of such transactions, and such price was converted into US Dollars using the transaction date exchange rate of (USD 1.00 = CHF 0.8084). The reporting person undertakes to provide full information regarding the number of shares purchased at each separate price upon request of the Securities and Exchange Commission, the Issuer, or a security holder of the Issuer.

	Hans Weinburger, Attorney-in-Fact	08/12/2025
	** 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.

FAQ

What insider transactions did AMRZ CEO Jan Philipp Jenisch report?

The CEO reported multiple purchases on 08/11/2025 acquiring 545,000 ordinary shares directly and 50,000 shares indirectly by his spouse.

How many AMRZ shares does the reporting person beneficially own after the transactions?

The filing shows 1,450,000 shares beneficially owned directly by the reporting person and 450,000 shares beneficially owned indirectly (spouse).

At what prices were the AMRZ shares purchased?

Reported converted USD prices range from approximately $47.59 to $47.99; the filing explains these are conversions from CHF weighted-average prices.

Was a currency conversion disclosed for the AMRZ purchases?

Yes. The filer disclosed CHF weighted-average prices (CHF 38.799 and CHF 38.775) converted to USD using USD 1.00 = CHF 0.8084.

Will the filer provide more detail on the individual purchase lots?

Yes. The filing states the reporting person will provide a full per-lot breakdown upon request from the SEC, the issuer, or a security holder.