# EDGAR Filing Document

**Accession Number:** 0001123452
**File Stem:** 0001104659-25-101550
**Filing Date:** 2025-10
**Character Count:** 15430
**Document Hash:** 88a95d7972c515ed3b72eb9f301d033a
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001104659-25-101550.hdr.sgml**: 20251022

**ACCESSION NUMBER**: 0001104659-25-101550

**CONFORMED SUBMISSION TYPE**: 6-K

**PUBLIC DOCUMENT COUNT**: 3

**CONFORMED PERIOD OF REPORT**: 20251022

**FILED AS OF DATE**: 20251022

**DATE AS OF CHANGE**: 20251022

**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:** 251410558

**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 October 2025

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.)

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| | |
|:---|:---|
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Yes ◻ | No ⌧ |

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(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: October 22, 2025

## Exhibit 99.1

**Exhibit 99.1**

![](tm2529294d1_6kimg01.jpg)

**ASUR** **ANNOUNCES 3Q25 RESULTS**

**Passenger traffic increased by 3.1% in Colombia and 1.1% in Puerto Rico; and decreased by 1.1% in Mexico**

**Mexico City, October 22, 2025 - 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 United States, and Colombia, today announced its results for the three- and nine-month periods ended September 30, 2025.

**3Q25 Highlights<sup>1</sup>**

• Total
 passenger traffic increased 0.4% YoY ("YoY"). By country of operations, passenger
 traffic showed the following YoY variations:

&nbsp;&nbsp;&nbsp;&nbsp;o **Mexico:** decreased 1.1%, driven by declines of 0.3% and 1.8% in international traffic and domestic
 traffic, respectively.

&nbsp;&nbsp;&nbsp;&nbsp;o **Puerto Rico (Aerostar):** increased 1.1%, reflecting increases of 11.7% and 0.5% in international
 and domestic traffic, respectively.

&nbsp;&nbsp;&nbsp;&nbsp;o **Colombia (Airplan):** increased 3.1%, reflecting growth of 11.2% and 0.8% in international and domestic
 traffic, respectively

• Revenues
 increased 17.1% YoY to Ps.8,765.4 million. Excluding construction services, revenues increased
 1.0% YoY.

• Commercial
 revenue per passenger increased 1.0% YoY to Ps.126.1.

• Consolidated
 EBITDA declined 1.3% YoY to Ps.4,639.4 million.

• Adjusted
 EBITDA margin (excluding IFRIC 12 effect) decreased to 66.7% from 68.3% in 3Q24.

• Cash
 position of Ps.16,259.3 million at September 30, 2025, with Debt to LTM Adjusted EBITDA
 at 0.2x.

• On
 July 30, 2025 ASUR announced an agreement to acquire Unibail-Rodamco-Westfield (URW)'s
 airport retail concessions at key terminals at John F. Kennedy International Airport, Los
 Angeles International Airport and Chicago O'Hare International Airport for US$295 million,
 marking its strategic entry into U.S. commercial airport operations; closing expected 4Q25
 subject to customary conditions precedent.

ASUR 3Q25 Page 1 of 4

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| | | | |
|:---|:---|:---|:---|
| &nbsp;&nbsp;**Table 1: Financial and Operating Highlights<sup>1</sup>** | &nbsp;&nbsp;**Table 1: Financial and Operating Highlights<sup>1</sup>** | &nbsp;&nbsp;**Table 1: Financial and Operating Highlights<sup>1</sup>** | &nbsp;&nbsp;**Table 1: Financial and Operating Highlights<sup>1</sup>** |
|  | &nbsp;&nbsp;**Third Quarter** | &nbsp;&nbsp;**Third Quarter** | &nbsp;&nbsp;***% Chg.*** |
|  | &nbsp;&nbsp;**2024** | &nbsp;&nbsp;**2025** | &nbsp;&nbsp;***% Chg.*** |
| &nbsp;&nbsp;**Financial Highlights** |  |  |  |
| &nbsp;&nbsp;**Total Revenue** | &nbsp;&nbsp;**7483293** | &nbsp;&nbsp;**8765450** | &nbsp;&nbsp;**17.1** |
| &nbsp;&nbsp; Mexico | &nbsp;&nbsp;5386401 | &nbsp;&nbsp;6479089 | &nbsp;&nbsp;20.3 |
| &nbsp;&nbsp; San Juan | &nbsp;&nbsp;1215566 | &nbsp;&nbsp;1325782 | &nbsp;&nbsp;9.1 |
| &nbsp;&nbsp;&nbsp;&nbsp;Colombia | &nbsp;&nbsp;881326 | &nbsp;&nbsp;960579 | &nbsp;&nbsp;9.0 |
| &nbsp;&nbsp;**Commercial Revenues per PAX** | &nbsp;&nbsp;**124.9** | &nbsp;&nbsp;**126.1** | &nbsp;&nbsp;**1.0** |
| &nbsp;&nbsp;&nbsp;&nbsp;Mexico | &nbsp;&nbsp;149.0 | &nbsp;&nbsp;144.2 | &nbsp;&nbsp;(3.3) |
| &nbsp;&nbsp; San Juan | &nbsp;&nbsp;152.4 | &nbsp;&nbsp;166.8 | &nbsp;&nbsp;9.5 |
| &nbsp;&nbsp;&nbsp;&nbsp;Colombia | &nbsp;&nbsp;52.0 | &nbsp;&nbsp;59.1 | &nbsp;&nbsp;13.6 |
| &nbsp;&nbsp;EBITDA | &nbsp;&nbsp;4700373 | &nbsp;&nbsp;4639368 | &nbsp;&nbsp;(1.3) |
| &nbsp;&nbsp;Net Income | &nbsp;&nbsp;3474554 | &nbsp;&nbsp;2211351 | &nbsp;&nbsp;(36.4) |
| &nbsp;&nbsp;**Majority Net Income** | &nbsp;&nbsp;**3381190** | &nbsp;&nbsp;**2114592** | &nbsp;&nbsp;**(37.5)** |
| &nbsp;&nbsp;Earnings per Share (in pesos) | &nbsp;&nbsp;11.2706 | &nbsp;&nbsp;7.0486 | &nbsp;&nbsp;(37.5) |
| &nbsp;&nbsp;Earnings per ADS (in US$) | &nbsp;&nbsp;6.1473 | &nbsp;&nbsp;3.8445 | &nbsp;&nbsp;(37.5) |
| &nbsp;&nbsp;Capex | &nbsp;&nbsp;1042400 | &nbsp;&nbsp;1872758 | &nbsp;&nbsp;79.7 |
| &nbsp;&nbsp;Cash & Cash Equivalents | &nbsp;&nbsp;18483601 | &nbsp;&nbsp;16259294 | &nbsp;&nbsp;(12.0) |
| &nbsp;&nbsp;Net Debt | &nbsp;&nbsp;(5853192) | &nbsp;&nbsp;4972580 | &nbsp;&nbsp;(185.0) |
| &nbsp;&nbsp;Net Debt/ LTM EBITDA | &nbsp;&nbsp;(0.3) | &nbsp;&nbsp;0.2 | &nbsp;&nbsp;(178.3) |
| &nbsp;&nbsp;**Operational Highlights** |  |  |  |
| &nbsp;&nbsp;**Passenger Traffic** |  |  |  |
| &nbsp;&nbsp;Mexico | &nbsp;&nbsp;9624910 | &nbsp;&nbsp;9519731 | &nbsp;&nbsp;(1.1) |
| &nbsp;&nbsp;San Juan | &nbsp;&nbsp;3316577 | &nbsp;&nbsp;3354150 | &nbsp;&nbsp;1.1 |
| &nbsp;&nbsp;Colombia | &nbsp;&nbsp;4314938 | &nbsp;&nbsp;4449600 | &nbsp;&nbsp;3.1 |

---

For a full version of ASUR's Third Quarter of 2025 Earnings Release, please visit: <u>https://www.asur.com.mx/informacion-financiera-page-0</u>"

**3Q25 Earnings Call**

**Day:** Thursday, October 23, 2025, at 10:00 AM ET; 8:00 AM Mexico City time

**Dial-in:** +1 877 407 4018 (U.S. Toll-Free); +1 201 689 8471 (International)

**Access Code: 13756571.** Please dial-in 10 minutes before the scheduled start time.

**Replay:** Thursday, October 23, 2025, at 2:00 PM ET, ending at 11:59 PM ET on Thursday, October 30, 2025. Dial-in: +1 844 512 2921 (U.S. Toll-Free); +1 412 317 6671 (International). Access Code: **13756571**

<sup>1</sup> Unless otherwise stated, all financial figures are unaudited and prepared in accordance with International Financial Reporting Standards (IFRS). All figures in this report are expressed in Mexican pesos, unless otherwise noted. Tables state figures in thousands of Mexican pesos, unless otherwise noted. Passenger figures for Mexico and Colombia exclude transit and general aviation passengers, unless otherwise noted. Commercial revenues include revenues from non-permanent ground transportation and parking lots. U.S. dollar figures are calculated at an exchange rate of US$1.00 = Ps.18.8332 (source: Diario Oficial de la Federación de México) while Colombian peso figures are calculated at an exchange rate of COP. 218.1500 = Ps.1.00 (source: Investing). Definitions for EBITDA, Adjusted EBITDA Margin, and Majority Net Income can be found on page 18 of this report.

ASUR 3Q25 Page 2 of 4

**Definitions**

**Concession Services Agreements (IFRIC 12 interpretation).** In Mexico and Puerto Rico, ASUR is required by IFRIC 12 to include in its income statement an income line, "Construction Revenues," reflecting the revenue from construction of, or improvements to concessioned assets made during the relevant period. The same amount is recognized under the expense line "Construction Costs" because ASUR hires third parties to provide construction services. Because equal amounts of Construction Revenues and Construction Costs have been included in ASUR's income statement as a result of the application of IFRIC 12, the amount of Construction Revenues does not have an impact on EBITDA, but it does have an impact on EBITDA Margin. In Colombia, "Construction Revenues" include the recognition of the revenue to which the concessionaire is entitled for carrying out the infrastructure works in the development of the concession, while "Construction Costs" represents the actual costs incurred in the execution of such additions or improvements to the concessioned assets.

**Majority Net Income** reflects ASUR's equity interests in each of its subsidiaries and therefore excludes the 40% interest in Aerostar that is owned by other shareholders. Other than Aerostar, ASUR owns (directly or indirectly) 100% of its subsidiaries.

**EBITDA** means net income before provision for taxes, deferred taxes, profit sharing, non-ordinary items, participation in the results of associates, comprehensive financing cost, and depreciation and amortization. EBITDA should not be considered as an alternative to net income, as an indicator of our operating performance, as an alternative to cash flow or as an indicator of liquidity. Our management believes that EBITDA provides a useful measure that is widely used by investors and analysts to evaluate our performance and compare it with other companies. EBITDA is not defined under U.S. GAAP or IFRS and may be calculated differently by different companies.

**Adjusted EBITDA Margin** is calculated by dividing EBITDA by total revenues excluding construction services revenues for Mexico, Puerto Rico, and Colombia and excludes the effect of IFRIC 12 with respect to the construction of, or improvements to concessioned assets. ASUR is required by IFRIC 12 to include in its income statement an income line reflecting the revenue from construction of, or improvements to concessioned assets made during the relevant period. The same amount is recognized under the expense line "Construction Costs" because ASUR hires third parties to provide construction services. In Mexico and Puerto Rico, because equal amounts of Construction Revenues and Construction Costs have been included in ASUR's income statement as a result of the application of IFRIC 12, the amount of Construction Revenues does not have an impact on EBITDA, but it does have an impact on EBITDA Margin, as the increase in revenues that relates to Construction Revenues does not result in a corresponding increase in EBITDA. In Colombia, construction revenues do have an impact on EBITDA, as construction revenues include a reasonable margin over the actual cost of construction. Like EBITDA Margin, Adjusted EBITDA Margin should not be considered as an indicator of our operating performance, as an alternative to cash flow or as an indicator of liquidity and is not defined under U.S. GAAP or IFRS and may be calculated differently by different companies.

**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 in the

ASUR 3Q25 Page 3 of 4

Americas. These comprise nine airports in southeast Mexico, including Cancun Airport, the most important tourist destination in Mexico, the Caribbean, and Latin America, and six airports in northern Colombia, including José María Córdova International Airport (Rionegro), the second busiest airport in Colombia. ASUR is also a 60% JV partner in Aerostar Airport Holdings, LLC, operator of the Luis Muñoz Marín International Airport serving the capital of Puerto Rico, San Juan. San Juan's Airport is the island's primary gateway for international and mainland-US destinations and was the first and currently the only major airport in the US to have successfully completed a public–private partnership under the FAA Pilot Program. Headquartered in Mexico, ASUR is listed both on the Mexican Bolsa, where it trades under the symbol ASUR, and on the NYSE in the U.S., where it trades under the symbol ASR. One ADS represents ten (10) series B shares. For more information, visit www.asur.com.mx

**Analyst Coverage**

In accordance with Article 4.033.01 of the Mexican Stock Exchange Internal Rules, ASUR reports that the stock is covered by the following broker-dealers: Actinver, Banorte, Barclays, BBVA, BofA Merrill Lynch, Bradesco, BTG Pactual, Citi Global Markets, GBM Grupo Bursatil, Goldman Sachs, HSBC Securities, Insight Investment Research, Itau BBA Securities, Jefferies, JP Morgan, Punto Research, Santander, Scotiabank, UBS Casa de Bolsa and Vector.

Please note that any opinions, estimates or forecasts with respect to the performance of ASUR issued by these analysts reflect their own views, and therefore do not represent the opinions, estimates or forecasts of ASUR or its management. Although ASUR may refer to or distribute such statements, this does not imply that ASUR agrees with or endorses any information, conclusions or recommendations included therein.

**<u>Forward Looking Statements</u>**

Some of the statements contained in this press release discuss future expectations or state other forward-looking information. Those statements are subject to risks identified in this press release and in ASUR's filings with the SEC. Actual developments could differ significantly from those contemplated in these forward-looking statements. The forward-looking information is based on various factors and was derived using numerous assumptions. Our forward-looking statements speak only as of the date they are made and, except as may be required by applicable law, we do not have an obligation to update or revise them, whether as a result of new information, future or otherwise.

**Contacts:**

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| | |
|:---|:---|
| **ASUR**<br> Adolfo Castro<br> +52-55-5284-0408<br> <u>acastro@asur.com.mx</u> | **InspIR Group** <br> Susan Borinelli<br> +1-646-330-5907<br> <u>susan@inspirgroup.com</u> |

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ASUR 3Q25 Page 4 of 4