Central North Airport Group sees no cause for unusual trading

Central North Airport Group says it sees no corporate or insider actions behind recent abnormal trading volume and confirms its buyback program was inactive during the period.

Rhea-AI Filing Summary

Central North Airport Group (OMAB) reports that it has no knowledge of any specific event causing a breach of the traded volume parameter on Mexico’s stock exchanges for its shares. Based on the information available, the company states it is not aware of any trading by members of its Board of Directors or relevant executive officers that could explain such movements, and its share repurchase program did not operate during this period.

Central North Airport Group indicates that any supplementary or relevant information that may arise will be disclosed to the market in a timely manner and includes customary cautionary language regarding forward-looking statements. The company also describes its core business as operating 13 international airports and related hotel assets in Mexico and notes that it is part of VINCI Airports.

Key Terms

traded volume parameter, repurchase program, forward-looking statements, Form 20-F, +1 more

5 terms

traded volume parameter financial

"any event that could be causing the breach of the traded volume parameter"

repurchase program financial

"additionally, the repurchase program did not operate during this period"

A repurchase program is when a company buys back its own shares from the open market. This reduces the total number of shares available, which can increase the value of each remaining share and signal confidence in the company's future. For investors, it often suggests that the company believes its stock is undervalued and can be a sign of financial strength.

forward-looking statements financial

"This report may contain forward-looking information and statements"

Forward-looking statements are predictions or plans that companies share about what they expect to happen in the future, like estimating sales or profits. They matter because they help investors understand a company's outlook, but since they are based on guesses and assumptions, they can sometimes be wrong.

Form 20-F regulatory

"those discussed in our most recent annual report filed on Form 20-F"

Form 20-F is the standardized annual disclosure that non-U.S. companies must file with the U.S. securities regulator when their shares are traded in the U.S.; it contains audited financial statements, a plain-language description of the business, management discussion, governance details and key risk factors. It matters to investors because it provides a consistent, comparable company “report card” and rulebook, helping buyers assess financial health, governance and risks before investing.

Risk Factors financial

"filed on Form 20-F under the caption “Risk Factors.”"

Risk factors are elements or conditions that could cause an investment's value to decrease or lead to potential losses. They are like warning signs or obstacles that can affect the success of an investment, making it uncertain or more unpredictable. Recognizing risk factors helps investors understand the possible challenges and make more informed decisions.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What did OMAB disclose about unusual trading volume in its September 6-K?

OMAB stated it has no knowledge of any event that could be causing a breach of the traded volume parameter on Mexico’s stock exchanges for its shares, based on the information currently available to the company.

Did OMAB’s board members or executives trade during the recent volume movements?

OMAB reported that with the information currently available, it is not aware that any Board members or relevant executive officers participated in the trading movements associated with the unusual volume.

Was OMAB’s share repurchase program active during the period of unusual trading volume?

OMAB disclosed that its repurchase program did not operate during the period in which the traded volume parameter on Mexico’s stock exchanges was breached.

How will OMAB (OMAB) handle any new information about the unusual trading activity?

OMAB stated it will disclose any supplementary information to the market in a timely manner if such information exists, reiterating its commitment to inform the market of any relevant future events.

What forward-looking statement cautions did OMAB include in this 6-K?

OMAB noted that the report may contain forward-looking statements subject to various risks and uncertainties, and referred investors to the “Risk Factors” section in its most recent Form 20-F, adding it has no obligation to update such statements.

What business operations of OMAB are highlighted in this filing?

OMAB highlighted that it operates 13 international airports in nine Mexican states, runs hotels at the Mexico City and Monterrey airports, employs over 1,200 people, and has been part of VINCI Airports since December 2022.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 09/21/2026 - 06:02 AM Accepted by SEC EDGAR 09/18/2026 - 09:25 PM Learn about SEC filing dates

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 September

GRUPO AEROPORTUARIO DEL CENTRO NORTE, S.A.B. DE C.V.

(CENTRAL NORTH AIRPORT GROUP)

(Translation of Registrant’s Name Into English)

México

(Jurisdiction of incorporation or organization)

Torre Latitud, L501, Piso 5

Av. Lázaro Cárdenas 2225

Col. Valle Oriente, San Pedro Garza García

Nuevo León, México

(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-             .)

            OMA responds to Mexican Stock Exchange's request regarding today's trading volume

Mexico City, Mexico, September 18, 2026— Mexican airport operator Grupo Aeroportuario del Centro Norte, S.A.B. de C.V., known as OMA (NASDAQ: OMAB; BMV: OMA), informs that it currently has no knowledge of any event that could be causing the breach of the traded volume parameter of Mexico’s Stock Exchanges. With the current information available to the issuer, it is not aware that any of the members of its Board of Directors or any of its relevant executive officers participated in such trading movements; additionally, the repurchase program did not operate during this period.

If any supplementary information exists, it will be disclosed to the market in a timely manner. OMA reiterates its commitment to inform the market of any relevant event that occurs in the future.

Chief Financial Officer Ruffo Pérez Pliego +52 (81) 8625 4300 rperezpliego@oma.aero www.oma.aero Investor Relations: Emmanuel Camacho +52 (81) 8625 4308 ecamacho@oma.aero

This report may contain forward-looking information and statements. Forward-looking statements are statements that are not historical facts. These statements are only predictions based on our current information and expectations and projections about future events. Forward-looking statements may be identified by the words “believe,” “expect,” “anticipate,” “target,” “estimate,” or similar expressions. While OMA's management believes that the expectations reflected in such forward-looking statements are reasonable, investors are cautioned that forward-looking information and statements are subject to various risks and uncertainties, many of which are difficult to predict and are generally beyond the control of OMA, that could cause actual results and developments to differ materially from those expressed in, or implied or projected by, the forward-looking information and statements. These risks and uncertainties include, but are not limited to, those discussed in our most recent annual report filed on Form 20-F under the caption “Risk Factors.” OMA undertakes no obligation to update publicly its forward-looking statements, whether as a result of new information, future events, or otherwise.

About OMA

Grupo Aeroportuario del Centro Norte, S.A.B. de C.V., known as OMA, operates 13 international airports in nine states of central and northern Mexico. OMA’s airports serve Monterrey, Mexico’s third largest metropolitan area, the tourist destinations of Acapulco, Mazatlán, and Zihuatanejo, and nine other regional centers and border cities. OMA also operates the NH Collection Hotel inside Terminal 2 of the Mexico City airport and the Hilton Garden Inn at the Monterrey airport. OMA employs over 1,200 people to offer passengers and clients airport and commercial services in facilities. OMA is listed on the Mexican Stock Exchange (OMA) and on the NASDAQ Global Select Market (OMAB). Since December 2022, OMA is part of VINCI Airports, the world´s leading private airport operator.

Webpage: www.oma.aero

X: http://twitter.com/OMAeropuertos

Facebook https://www.facebook.com/OMAeropuertos

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 Centro Norte, S.A.B. de C.V.
	By:	/s/ Ruffo Pérez Pliego
		Ruffo Pérez Pliego
		Chief Financial Officer

Dated: September 18, 2026