OMA addresses unusual trading volume in OMAB shares

Grupo Aeroportuario del Centro Norte (OMA) states it has no knowledge of any event that could be causing a breach of the traded volume parameter on Mexico’s stock exchanges.

Rhea-AI Filing Summary

Grupo Aeroportuario del Centro Norte (OMA) states it has no knowledge of any event that could be causing a breach of the traded volume parameter on Mexico’s stock exchanges. The company indicates it is not aware of trading movements by its board members or relevant executive officers, and confirms that its share repurchase program did not operate during this period.

OMA indicates that if supplementary information emerges, it will be disclosed to the market. The company reiterates its commitment to keep investors informed of any relevant future events, while reminding readers that any forward-looking comments are subject to risks and uncertainties described in its most recent Form 20-F.

Key Terms

traded volume parameter, repurchase program, forward-looking statements, Form 20-F, +2 more

6 terms

traded volume parameter financial

"no knowledge of any event that could be causing the breach of the traded volume parameter of Mexico’s Stock Exchanges"

repurchase program financial

"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 regulatory

"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 under the caption “Risk Factors.”"

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.

foreign private issuer regulatory

"REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16"

A foreign private issuer is a company organized outside the United States that meets tests showing it is primarily foreign-controlled and therefore qualifies for a different set of U.S. reporting rules. For investors, that means the company files less frequent or differently formatted disclosures with U.S. regulators and may follow home-country accounting and governance practices, so buying its stock is like dining at a well-reviewed restaurant that follows its home kitchen’s rules instead of the local menu — you get access but should check what standards apply.

VINCI Airports financial

"Since December 2022, OMA is part of VINCI Airports, the world´s leading private airport operator."

FAQ

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

What did Grupo Aeroportuario del Centro Norte (OMAB) disclose in this Form 6-K?

OMA disclosed that it currently has no knowledge of any event causing a breach of the traded volume parameter in Mexico’s stock exchanges. The company also stated its repurchase program did not operate during the period and committed to timely future disclosures.

Does OMA link its board or executives to recent trading in OMAB shares?

OMA states it is not aware that any members of its Board of Directors or relevant executive officers participated in the trading movements linked to the traded volume parameter breach. This indicates no identified insider involvement based on information currently available to the issuer.

What did OMA say about its share repurchase program in this filing?

OMA reported that its repurchase program did not operate during the period in which the traded volume parameter was breached. This means the company was not buying back its own shares at that time through the authorized repurchase mechanism.

How will OMA handle any new information about the trading volume situation?

OMA stated that if any supplementary information exists, it will be disclosed to the market in a timely manner. The company reiterated its commitment to inform the market of any relevant events that occur in the future affecting its securities.

What forward-looking statement caution does OMA provide in this report?

OMA explains that forward-looking statements are predictions based on current expectations and are subject to various risks and uncertainties. It points investors to the “Risk Factors” section of its most recent Form 20-F for a broader description of these potential risks.

What business operations of Grupo Aeroportuario del Centro Norte (OMAB) are described?

OMA operates 13 international airports in nine Mexican states, including Monterrey, Acapulco, Mazatlán, and Zihuatanejo. It also operates two hotels at major airports and employs over 1,200 people to provide airport and commercial services across its facilities.

On which stock exchanges are OMA shares listed and under which tickers?

OMA’s shares are listed on the Mexican Stock Exchange under the ticker OMA and on the NASDAQ Global Select Market under the ticker OMAB. This dual listing provides access to both Mexican and U.S. capital markets for its equity securities.

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

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Accepted by SEC EDGAR 06/01/2026 - 01:48 PM EDT 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

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, May 29, 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		Investor Relations:
Ruffo Pérez Pliego		Emmanuel Camacho
+52 (81) 8625 4300	www.oma.aero	+52 (81) 8625 4308
rperezpliego@oma.aero		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 June 1, 2026