UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

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 February 2026

Commission File Number: 001-14946

Cemex, S.A.B. de C.V.

(Translation of Registrant’s name into English)

Avenida Ricardo Margáin Zozaya #325, Colonia Valle del Campestre,

San Pedro Garza García, Nuevo León, 66265, México

(Address of principal executive offices)

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):

Contents

On1. ~~February 23, 2026,~~ Cemex, S.A.B. de C.V. (~~“Cemex”) (~~NYSE: CX) ~~repurchased 10,000,000 Cemex Ordinary Participation Certificates~~ (“~~CPOs~~Cemex”), atand aits ~~weighted-average~~subsidiaries’ ~~price~~consolidated offinancial ~~MXN$21.5764~~statements ~~per~~for ~~CPO pursuant to~~ the ~~stock~~years ~~repurchase~~ended ~~program~~December ~~approved at Cemex’s general ordinary shareholders’ meeting held on March 25~~31, 2025 ~~(the “Share Buyback Program”). The total monetary amount of CPOs repurchased on February 23~~, ~~2026~~2024 ~~under the Share Buyback Program, excluding fees~~ and ~~value-added tax~~2023, ~~was~~subject ~~MXN$215,764,000.00 (approximately U.S.$12,564,726.71 based on an exchange rate of MXN$17.1722~~ to ~~U.S.$1.00~~approval ~~determined~~ by ~~the Central Bank of Mexico).~~ Cemex’s ~~engaged~~shareholders ~~Citi~~at ~~México~~the ~~Casa~~Ordinary deGeneral ~~Bolsa,~~Shareholders’ ~~S.A.~~Meeting ~~de C.V. Grupo Financiero Citi México~~ to ~~execute~~be ~~the~~held ~~above~~on ~~referenced~~March ~~repurchases~~26, ~~of CPOs~~2026.

In2. ~~compliance~~Cemex’s ~~with~~separate ~~the~~financial ~~laws~~statements ~~and~~for ~~regulations~~the ofyears ~~Mexico,~~ended ~~any~~December ~~future~~31, ~~repurchases~~2025, of2024 ~~shares~~and or2023, ~~securities~~subject ~~representing~~to ~~them~~approval by Cemex’s ~~under~~shareholders ~~the~~at ~~Share Buyback Program will be announced no later than~~ the ~~end~~Ordinary ofGeneral ~~the~~Shareholders’ ~~business~~Meeting ~~day~~to ~~following~~be ~~the~~held ~~date~~ on ~~which~~March ~~such~~26, ~~repurchases are made~~2026.

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, Cemex, S.A.B. de C.V. has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

		Cemex, S.A.B. de C.V.	~~Cemex, S.A.B. de C.V.~~
		(Registrant)	~~(Registrant)~~
Date:	February 24, 2026		By:	/s/ Jaime Martínez Merla
Date: February 25, 2026		By:	/s/ Jaime Martinez Merla
				Name: Jaime Martínez Merla
			Name:	Jaime Martinez Merla
				Title: Chief Comptroller
			Title:	Chief Comptroller

EXHIBIT INDEX


EXHIBIT NO.		DESCRIPTION

1.		Cemex, S.A.B. de C.V. (NYSE: CX) (“Cemex”) and its subsidiaries’ consolidated financial statements for the years ended December 31, 2025, 2024 and 2023, subject to approval by Cemex’s shareholders at the Ordinary General Shareholders’ Meeting to be held on March 26, 2026.

2.		Cemex’s separate financial statements for the years ended December 31, 2025, 2024 and 2023, subject to approval by Cemex’s shareholders at the Ordinary General Shareholders’ Meeting to be held on March 26, 2026.

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