6-K

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

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FORM 6-K _______________

REPORT OF FOREIGN PRIVATE ISSUER

Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934

For the month of October, 2023

Commission File Number: 001-38262

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LOMA NEGRA COMPAÑÍA INDUSTRIAL ARGENTINA SOCIEDAD ANÓNIMA (Exact Name of Registrant as Specified in its Charter)

LOMA NEGRA CORPORATION (Translation of Registrant’s name into English)

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Indicate by check mark whether the registrant files or will file annual reports under cover Form 20-F or Form 40-F. Form 20-F ☒ Form 40-F

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1):

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7):

This Form 6-K for Loma Negra Compañía Industrial Argentina Sociedad Anónima (or the “Company”) contains:

Exhibit 1:Relevant Event Stipulation of Settlement Agreement

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

notificacinhr-settlement

City of Buenos Aires, October 11th, 2023 Messrs. Comisión Nacional de Valores (CNV) Messrs. Bolsas y Mercados Argentinos S.A. (BYMA) Messrs. Mercado Abierto Electrónico S.A. (MAE) Ref.: LOMA NEGRA C.I.A.S.A. – Relevant Event Dear Sirs, We hereby inform that today Loma Negra C.I.A.S.A. (“Loma Negra” or the “Company”) has entered into a stipulation of settlement (“Settlement”) with respect to the shareholder class action lawsuit captioned “Dan Kohl v. Loma Negra CIASA, et al. - Index No. 653114/2018 (District Court for the Southern District of New York)” (the “Class Action”). The Class Action was filed against Loma Negra, its directors and members of its senior management at the time of the IPO, Loma Negra Holding GmbH and Bradesco Securities Inc., Citigroup Global Markets Inc., HSBC Securities (USA) Inc., Itaú BBA USA Securities Inc., Merril Lynch Pierce Fenner & Smith Inc. and Morgan Stanley & Co. LLC alleging violations of the Securities Act of 1933. The Settlement is subject to the approval of the New York State Court, which will take several months. All material payment obligations under the Settlement are covered by D&O insurance policies. The Settlement contains no admission or concession of any liability of wrongdoing by Loma Negra or other defendant in the Class Action and provides a full release of all the claims. Sincerely, ______________________ Marcos Isabelino Gradin Investor Relations Officer