# EDGAR Filing Document

**Accession Number:** 0001123452
**File Stem:** 0001104659-26-044497
**Filing Date:** 2026-4
**Character Count:** 5443
**Document Hash:** da438c97a8155f8397f95a6a7e2fd1ca
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001104659-26-044497.hdr.sgml**: 20260417

**ACCESSION NUMBER**: 0001104659-26-044497

**CONFORMED SUBMISSION TYPE**: 6-K

**PUBLIC DOCUMENT COUNT**: 3

**CONFORMED PERIOD OF REPORT**: 20260416

**FILED AS OF DATE**: 20260417

**DATE AS OF CHANGE**: 20260416

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** SOUTHEAST AIRPORT GROUP
- **CENTRAL INDEX KEY:** 0001123452
- **STANDARD INDUSTRIAL CLASSIFICATION:** AIRPORTS, FLYING FIELDS & AIRPORT TERMINAL SERVICES [4581]
- **ORGANIZATION NAME:** 01 Energy & Transportation
- **EIN:** 000000000

**FILING VALUES:**
- **FORM TYPE:** 6-K
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-15132
- **FILM NUMBER:** 26868927

**BUSINESS ADDRESS:**
- **ADDRESS IS A NON US LOCATION:** YES
- **STREET 1:** BOSQUE DE ALISOS NO. 47A - 4TH FL
- **CITY:** BOSQUES DE LAS LOMAS
- **PROVINCE COUNTRY:** O5
- **BUSINESS PHONE:** 212 225 3474

**MAIL ADDRESS:**
- **ADDRESS IS A NON US LOCATION:** YES
- **STREET 1:** BOSQUE DE ALISOS NO. 47A - 4TH FL
- **CITY:** BOSQUES DE LAS LOMAS
- **PROVINCE COUNTRY:** O5

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 April 2026

GRUPO AEROPORTUARIO DEL SURESTE, S.A.B. de C.V.

(SOUTHEAST AIRPORT GROUP)

(Translation of Registrant's Name Into English)

México

(Jurisdiction of incorporation or organization)

Bosque de Alisos No. 47A– 4th Floor

Bosques de las Lomas

05120 México, D.F.

(Address of principal executive offices)

(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 ⌧ Form 40-F ◻

(Indicate by check mark whether the registrant by furnishing the information contained in this form is also thereby furnishing the information to the Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934.)

---

| | |
|:---|:---|
| Yes ◻ | No ⌧ |

---

(If "Yes" is marked, indicate below the file number assigned to the registrant in connection with Rule 12g3-2(b): 82-<u> </u>.)

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.

---

| | |
|:---|:---|
| Grupo Aeroportuario del Sureste, S.A.B. de C.V. | Grupo Aeroportuario del Sureste, S.A.B. de C.V. |
| By: | /s/ ADOLFO CASTRO RIVAS |
|  | Adolfo Castro Rivas |
|  | Chief Executive Officer |

---

Date: April 16, 2026

## Exhibit 99.1

**Exhibit 99.1**

---

| | | |
|:---|:---|:---|
| &nbsp;&nbsp;<br> Contacts:<br>**ASUR**<br> Lic. Adolfo Castro<br> +52+55-5284-0408<br> acastro@asur.com.mx<br>Lic. David Barlow<br> +52-55-5284-0483<br> dbarlow@asur.com.mx | &nbsp;&nbsp; <br>![](tm2612067d1_ex99-1img001.jpg) <br>| &nbsp;&nbsp;<br>**InspIR Group**<br> Susan Borinelli<br> +1-646-330-5907<br> susan@inspirgroup.com<br>|

---

**ASUR Files its 2025 Form 20-F with the U.S. Securities and Exchange**

**Commission and Publishes its 2025 Sustainability Report**

**MEXICO CITY, April 16, 2026 - Grupo Aeroportuario del Sureste, S.A.B. de C.V. (NYSE: ASR; BMV: ASUR)** (ASUR), a leading international airport group with operations in Mexico, the U.S. and Colombia, announces that its annual report on Form 20-F for the year ended December 31, 2025, has been filed with the U.S. Securities and Exchange Commission. ASUR has also published its 2025 Sustainability Report, which discusses the company's environmental, social, governance performance.

You can access PDF versions of ASUR´s 2025 Form 20-F and 2025 Sustainability Report at its Investor Relations website www.asur.com.mx.

Investors can receive a printed copy of ASUR's 2025 20-F free of charge by calling The Bank of New York Mellon at 1-212-815-2838.

**About ASUR**

Grupo Aeroportuario del Sureste, S.A.B. de C.V. (ASUR) is a leading international airport operator with a portfolio of concessions to operate, maintain, and develop 16 airports across the Americas. The Company operates nine airports in southeast of Mexico, including Cancún Airport, the largest tourist gateway in Mexico, the Caribbean, and Latin America; as well as six airports in northern Colombia, including Medellin international airport (Rionegro), the second busiest in Colombia.

ASUR also holds a 60% interest in Aerostar Airport Holdings, LLC, operator of Luis Muñoz Marin International Airport in San Juan, the capital of Puerto Rico, the island's primary international gateway. San Juan Airport was the first and remains the only major airport in the U.S. to have successfully completed a public–private partnership under the FAA Pilot Program. ASUR has recently expanded into airport commercial services through ASUR US, which partners with airports and airlines to deliver enhanced retail and passenger experiences. ASUR Airports operates at major U.S. hubs, including Los Angeles International, Chicago O'Hare, and John F. Kennedy International, and has a track record of outperforming U.S. commercial revenue benchmarks.

Headquartered in Mexico, ASUR is listed on both the Mexican Bolsa (BMV) under the symbol ASUR, and on the NYSE in the U.S., where it trades under the symbol ASR. One ADS represents ten (10) B-series shares. For further information, visit www.asur.com.mx

**s- END -**

ASUR Page 1 of 1