6-K

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 of the

Securities Exchange Act of 1934

For the month of August, 2023

Commission File Number 001-36671

Atento S.A.

(Translation of Registrant's name into English)

1, rue Hildegard Von Bingen, 1282, Luxembourg
Grand Duchy of Luxembourg
(Address of principal executive office)

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

Form 20-F: x Form 40-F: o

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):

Yes: o No: x

Note: Regulation S-T Rule 101(b)(1) only permits the submission in paper of a Form 6-K if submitted solely to provide an attached annual report to security holders.

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):

Yes: o No: x

Note: Regulation S-T Rule 101(b)(7) only permits the submission in paper of a Form 6-K if submitted to furnish a report or other document that the registrant foreign private issuer must furnish and make public under the laws of the jurisdiction in which the registrant is incorporated, domiciled or legally organized (the registrant’s “home country”), or under the rules of the home country exchange on which the registrant’s securities are traded, as long as the report or other document is not a press release, is not required to be and has not been distributed to the registrant’s security holders, and, if discussing a material event, has already been the subject of a Form 6-K submission or other Commission filing on EDGAR.

Third Supplemental Indenture

On August 22, 2023, Atento Luxco 1 (the “Company”), Atento UK Limited, Atento de Puerto Rico, Inc., Atento de Guatemala S.A. (sociedad anónima), Atento El Salvador S.A. de C.V., WOKNAL S.A. (the “Additional Guarantors”), Wilmington Trust, National Association and Wilmington Trust (London) Limited entered into a Supplemental Indenture (the “Third Supplemental Indenture”) to supplement the Indenture dated February 10, 2021 (the “Indenture”), governing the Company’s $500 million 8.000% Senior Secured Notes due 2026 (the “Notes”). Following the execution of the Third Supplemental Indenture, the Additional Guarantors became guarantors to the Notes under the Indenture.

The foregoing summary of the Third Supplemental does not purport to be complete and is subject to, and qualified in its entirety, by the full text of the Third Supplemental Indenture, which is attached hereto as Exhibits 99.1, and incorporated herein by reference. 

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.

    Date: August 24, 2023  ATENTO S.A.   By: /s/ Dimitrius Oliveira Name: Dimitrius Oliveira Title: Chief Executive Officer

Exhibit 99.1

Third Supplemental Indenture dated 22 August 2023

EX-99.1