Cinemark (NYSE: CNK) officer plans stock sales from 2025 RSA vesting

Rhea-AI Filing Summary

Cinemark Holdings, Inc. (CNK) has a notice of proposed sale of securities filed under Rule 144 for shares beneficially owned by officer Melissa Thomas. J.P. Morgan Securities LLC is identified as the broker and signs as agent and attorney-in-fact for Melissa Thomas.

The notice covers Cinemark common stock that will be available for sale following RSA vesting events. These include 16,153 shares tied to vesting on February 23, 2025 and 22,083 shares tied to vesting on November 8, 2025, both described as compensation-related common stock.

Key Figures

Shares from RSA vesting on 02/23/2025: 16,153 shares of common stock Shares from RSA vesting on 11/08/2025: 22,083 shares of common stock Rule 144 notice date: 08/20/2026 +1 more

4 metrics

Shares from RSA vesting on 02/23/2025 16,153 shares of common stock Securities to be sold; RSA Vesting dated 02/23/2025 as compensation common stock

Shares from RSA vesting on 11/08/2025 22,083 shares of common stock Securities to be sold; RSA Vesting dated 11/08/2025 as compensation common stock

Rule 144 notice date 08/20/2026 Date appearing with the Rule 144 remarks and signature section

Additional date in remarks 05/21/2026 Date listed in the remarks and signature section alongside 08/20/2026

Key Terms

Rule 144, RSA Vesting, attorney-in-fact, compensation common stock

4 terms

Rule 144 regulatory

"See the definition of "person" in paragraph (a) of Rule 144."

Rule 144 is a U.S. securities regulation that sets conditions under which restricted or insider-held shares can be legally resold to the public, such as required holding periods, availability of public information, limits on how much can be sold at once, and certain filing requirements. For investors it matters because it determines when previously locked-up shares can enter the market — like a release valve that can increase supply, affect share price, and signal insider intent.

RSA Vesting financial

"Common Stock | 02/23/2025 | RSA Vesting | Issuer"

attorney-in-fact regulatory

"as agent and attorney-in-fact for Melissa Thomas"

An attorney-in-fact is the person or entity given legal authority through a power of attorney to act on behalf of another for specific tasks, such as signing documents, voting shares, or handling transactions. For investors, this matters because it lets a trusted representative make timely decisions or complete paperwork when the owner cannot, much like handing keys to someone to run errands on your behalf—so checks on scope and limits of that authority are important.

compensation common stock financial

"16153 | 02/23/2025 | Compensation Common Stock"

FAQ

What does the Form 144 filed for CNK disclose?

It discloses a proposed sale under Rule 144 of Cinemark Holdings, Inc. common stock for the account of officer Melissa Thomas, with J.P. Morgan Securities LLC acting as broker and attorney-in-fact, involving shares from restricted stock award (RSA) vesting events in 2025.

Who is the person for whose account Cinemark (CNK) shares may be sold?

The person is Melissa Thomas, identified as an officer of Cinemark Holdings, Inc. The Form 144 states that the proposed sales are for her account, with details regarding the securities and RSA vesting dates in 2025.

How many CNK shares from RSA vesting on February 23, 2025 are covered?

The notice lists 16,153 shares of Cinemark common stock associated with an RSA Vesting event dated February 23, 2025, categorized as compensation-related common stock that may be sold under Rule 144.

How many CNK shares from RSA vesting on November 8, 2025 are covered?

The Form 144 lists 22,083 shares of Cinemark common stock tied to an RSA Vesting event dated November 8, 2025, also described as compensation common stock potentially to be sold under Rule 144.

Which broker is involved in the CNK Form 144 transaction?

The broker is J.P. Morgan Securities LLC. It is named as the broker for the Cinemark common stock and signs the Form 144 as agent and attorney-in-fact for Melissa Thomas in connection with the proposed Rule 144 sales.

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

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Available on EDGAR 08/20/2026 - 04:54 PM Accepted by SEC EDGAR 08/20/2026 - 04:53 PM Learn about SEC filing dates

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001760333
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	Cinemark Holdings, Inc.
SEC File Number	001-33401
Address of Issuer	3900 Dallas Parkway Plano TEXAS 75093
Phone	972-665-1000
Name of Person for Whose Account the Securities are To Be Sold	Melissa Thomas
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Officer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common Stock	J.P. Morgan Securities LLC 270 Park Avenue, 10th Floor New York NY 10017	38236	1426968	115911855	08/20/2026	NYSE

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common Stock	02/23/2025	RSA Vesting	Issuer			16153	02/23/2025	Compensation
Common Stock	11/08/2025	RSA Vesting	Issuer			22083	11/08/2025	Compensation

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Nothing to Report

144: Remarks and Signature

Remarks
Date of Notice	08/20/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	05/21/2026
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	/s/ J.P. Morgan Securities LLC as agent and attorney-in-fact for Melissa Thomas
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)