Amrize officer buys 3,200 shares in open market

Amrize Ltd’s Chief Supply Chain Officer, Mario Gross, made open-market purchases of the company’s Ordinary Shares.

Accepted by SEC EDGAR 03/16/2026 - 01:59 PM EDT Learn about SEC filing dates

Rhea-AI Filing Summary

Amrize Ltd’s Chief Supply Chain Officer, Mario Gross, made open-market purchases of the company’s Ordinary Shares. On March 13, 2026, he bought a total of 3,200 shares in two transactions, acquiring 2,000 shares at $55.39 per share and 1,200 shares at $55.13 per share. After these purchases, his direct ownership increased to 30,947 Ordinary Shares. The footnotes state the trades were executed in Swiss Francs at prices of CHF 43.665 and CHF 43.46 per share, converted into U.S. dollars using an exchange rate of USD 1.00 = CHF 0.7883.

Insider Trade Summary

Net Buyer: 3,200 shares

Net Buy 2 txns

Insider Gross Mario

Role Chief Supply Chain Officer

Bought 3,200 shs ($177K)

Type	Security	Shares	Price	Value
Purchase	Ordinary Shares	2,000	$55.39	$111K
Purchase	Ordinary Shares	1,200	$55.13	$66K

Holdings After Transaction: Ordinary Shares — 30,947 shares (Direct)

Footnotes (2)

1. F1. The purchase was made in Swiss Francs at a price of CHF 43.665 per share, and converted into US Dollars using the transaction date exchange rate of (USD 1.00 = CHF 0.7883).
2. F2. The purchase was made in Swiss Francs at a price of CHF 43.46 per share, and converted into US Dollars using the transaction date exchange rate of (USD 1.00 = CHF 0.7883).

FAQ

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

What insider transaction did Amrize Ltd (AMRZ) report for Mario Gross?

Amrize Ltd reported that Chief Supply Chain Officer Mario Gross bought 3,200 Ordinary Shares in open-market transactions. The purchases were made on March 13, 2026, and increased his direct ownership position in the company’s stock as disclosed in the Form 4 filing.

How many Amrize Ltd (AMRZ) shares does Mario Gross own after this Form 4?

After the reported transactions, Mario Gross directly owns 30,947 Amrize Ltd Ordinary Shares. This total reflects the addition of 3,200 shares purchased on March 13, 2026, as shown in the insider trading disclosure filed with the SEC.

At what prices did Mario Gross buy Amrize Ltd (AMRZ) shares?

Mario Gross bought 2,000 Amrize Ltd Ordinary Shares at $55.39 per share and 1,200 shares at $55.13 per share. These were open-market purchases executed on March 13, 2026, and are detailed in the Form 4 insider transaction report.

Were the Amrize Ltd (AMRZ) insider purchases made in a foreign currency?

Yes. The purchases were executed in Swiss Francs at CHF 43.665 and CHF 43.46 per share. The amounts were converted into U.S. dollars using an exchange rate of USD 1.00 = CHF 0.7883, as explained in the Form 4 footnotes.

What type of insider transaction did Amrize Ltd (AMRZ) disclose for Mario Gross?

The filing describes open-market purchases of Ordinary Shares by Mario Gross. The transaction code is “P,” indicating a purchase in the open market or a private transaction, with no sales or derivative exercises reported for this date.

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

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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^*

Gross Mario

(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)

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

3. Date of Earliest Transaction (Month/Day/Year)
03/13/2026

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	03/13/2026		P		2,000	A	$55.39(1)	29,747	D
Ordinary Shares	03/13/2026		P		1,200	A	$55.13(2)	30,947	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 43.665 per share, and converted into US Dollars using the transaction date exchange rate of (USD 1.00 = CHF 0.7883).

2. The purchase was made in Swiss Francs at a price of CHF 43.46 per share, and converted into US Dollars using the transaction date exchange rate of (USD 1.00 = CHF 0.7883).

	Hans Weinburger, Attorney-in-Fact	03/16/2026
	** 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.