Loma Negra (NYSE: LOMA) operations director details stock unit and ADS holdings

Rhea-AI Filing Summary

Loma Negra Compania Industrial Argentina Sociedad Anonima Director of Operations Lucas Ariel Amchite filed an initial Form 3 reporting his equity interests in the company. He holds performance stock units and restricted stock units each tied to 17,191 underlying ordinary shares, plus 800 Loma Negra ADSs.

The performance stock units are awarded under a total shareholder return plan and may be settled in ordinary shares, ADSs (each representing five ordinary shares), or cash after a three-year performance period. The restricted stock units may also be settled in shares, ADSs, or cash and vest in three equal annual installments starting on January 1, 2027, subject to continued employment.

SEC Form 3

FORM 3

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

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

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:			3235-0104
Estimated average burden
hours per response:			0.5

1. Name and Address of Reporting Person^*

Amchite Lucas Ariel

(Last) (First) (Middle)

CECILIA GRIERSON 355, 4TH FLOOR

(Street)

BUENOS AIRES C1 C1107CPG

(City) (State) (Zip)

ARGENTINA

(Country)

2. Date of Event Requiring Statement (Month/Day/Year)
03/18/2026

3. Issuer Name and Ticker or Trading Symbol
Loma Negra Compania Industrial Argentina Sociedad Anonima [ LOMA ]

3a. Foreign Trading Symbol
[LOMA.BA]

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

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

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Director of Operations

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 Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Loma Negra ADS(1)	800	D

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Performance Stock Units	(2)	(2)	Ordinary Shares	17,191	(2)	D
Restricted Stock Units	(3)	(3)	Ordinary Shares	17,191	(3)	D

Explanation of Responses:

1. Each American depositary share (ADS) represents five (5) ordinary shares of Loma Negra C.I.A.S.A. (the Company).

2. Each performance stock unit represents a contingent right to receive the economic equivalent of one ordinary share of Loma Negra C.I.A.S.A.(the Company). The Reporting Person was awarded performance stock units under the Company s Stock Compensation Plan Subject to Total Shareholder Return (TSR). The performance stock units may, at the Company s discretion, be settled in ordinary shares, American depositary shares (each representing five (5) ordinary shares) (ADSs) or the equivalent value in cash. The number of ordinary shares, ADSs (or equivalent value in cash) to be delivered upon vesting will be determined by reference to the Company s TSR over a three-year period following the award date (including the year the award was made) and calculated in accordance with the plan. The performance stock units will vest following the end of the three-year performance period, subject to the Reporting Person continued employment with the Company through such vesting date.

3. Each restricted stock unit represents a contingent right to receive the economic equivalent of one ordinary share of the Company. The Reporting Person was awarded restricted stock units under the Company s Stock Compensation Plan. The restricted stock units may, at discretion of the Company, be settled in ordinary shares, ADSs or the equivalent value in cash. The restricted stock units vest in substantially equal installments on January 1 of each of the three years following the award date, subject to the Reporting Person continued employment with the Company through each such vesting date, commencing on January 1, 2027.

Remarks:

	Lucas Ariel Amchite	03/18/2026
	** 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 5 (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 3: SEC 1473 (03-26)

FAQ

What does the LOMA Form 3 filing by Lucas Ariel Amchite report?

The Form 3 reports Lucas Ariel Amchite’s initial ownership in Loma Negra. It lists performance stock units, restricted stock units, and 800 ADSs, giving investors a baseline view of his compensation-linked equity position as Director of Operations.

How many Loma Negra ordinary shares underlie the reported stock units on this Form 3?

The filing shows performance stock units linked to 17,191 underlying ordinary shares and restricted stock units also linked to 17,191 underlying ordinary shares. These contingent rights reflect potential future equity, subject to vesting conditions and settlement choices by the company.

What are the key terms of the LOMA performance stock units disclosed?

Each performance stock unit represents the economic equivalent of one ordinary share. They vest after a three-year performance period tied to total shareholder return and may be settled in ordinary shares, ADSs representing five ordinary shares each, or cash, subject to continued employment.

How do the LOMA restricted stock units for Lucas Ariel Amchite vest?

Each restricted stock unit represents the economic equivalent of one ordinary share. They vest in substantially equal installments on January 1 of each of three years following the award date, beginning January 1, 2027, provided the executive remains employed through each vesting date.

What is the share ratio for Loma Negra ADSs mentioned in the Form 3?

Each Loma Negra American depositary share (ADS) represents five ordinary shares of the company. The filing notes that equity awards may be settled in ordinary shares, ADSs using this five-to-one ratio, or an equivalent cash value at the company’s discretion.

Does the LOMA Form 3 show any insider buying or selling activity?

The Form 3 does not show explicit buy or sell transactions. It primarily records existing holdings of performance stock units, restricted stock units, and ADSs, establishing Amchite’s starting ownership position as a reporting officer under U.S. insider disclosure rules.