Planned Rule 144 sale of 4,747 MAR shares disclosed

Rhea-AI Filing Summary

A Rule 144 notice has been filed for the planned sale of 4,747 shares of common stock, to be sold through Raymond James & Associates, Inc. on the NYSE around 02/17/2026. The filing lists an aggregate market value of $1,600,000.00 for these shares and notes that 264,984,554 shares of this class were outstanding.

The shares to be sold were acquired via restricted stock unit (RSU) vesting awards from the issuer, with 3,899 shares vesting on 02/15/2024 and 848 shares vesting on 02/15/2025. The notice also discloses recent sales in the past three months by related sellers, including MAYO CLINIC selling 21,600 common shares for $6,413,888.13 on 12/12/2025 and SUBURBAN HOSPITAL FOUNDATION selling 3,400 common shares for $1,002,498.50 on 11/24/2025.

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

144: Issuer Information

Name of Issuer

SEC File Number

Address of Issuer

Phone

Name of Person for Whose Account the Securities are To Be Sold

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

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	Raymond James & Associates, Inc. 880 Carillon Parkway St. Petersburg FL 33716	4747	1600000.00	264984554	02/17/2026	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	02/15/2025	RSU VESTING	ISSUER			848	02/15/2025	AWARD
COMMON	02/15/2024	RSU VESTING	ISSUER			3899	02/15/2024	AWARD

* 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

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
MAYO CLINIC 200 FIRST ST SW ROCHESTER MN 55905	COMMON	12/12/2025	21600	6413888.13
SUBURBAN HOSPITAL FOUNDATION 8600 OLD GEROGETOWN RD BETHESDA MD 20814	COMMON	11/24/2025	3400	1002498.50
CHILDRENS HOSPITAL FOUNDATION 111 MICHIGAN AVE NW WASHINGTON DC 20010	COMMON	11/24/2025	6900	2035486.60
UNIVERISTY OF UTAH 332 S 1400 E DUITE 160 SALT LAKE CITY UT 84112	COMMON	11/24/2025	13690	4060180.20
NEW YORK UNIVERSITY 7 E 12TH ST NEW YORK NY 10003	COMMON	11/24/2025	3400	1000084.10

144: Remarks and Signature

Remarks

Date of Notice

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

ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)

FAQ

How many shares are covered by this Form 144 for MAR?

The notice covers a planned sale of 4,747 shares of common stock. These shares are to be sold through Raymond James & Associates on the NYSE, with an aggregate market value listed as $1,600,000.00 in the filing.

How were the MAR shares being sold under Rule 144 originally acquired?

The shares were acquired through RSU vesting awards from the issuer. The filing lists 3,899 shares vesting on 02/15/2024 and 848 shares vesting on 02/15/2025, with each grant identified as an “AWARD” in the transaction details.

What trading details does the MAR Form 144 specify for the planned sale?

The planned sale is for common stock to be executed via Raymond James & Associates, Inc. on the NYSE. The filing lists an approximate sale date of 02/17/2026 and an aggregate market value of $1,600,000.00 for the 4,747 shares.

How many MAR shares of this class are outstanding according to the notice?

The filing states that 264,984,554 shares of the relevant class of common stock were outstanding. This figure provides context for the relative size of the planned Rule 144 sale compared with the issuer’s total shares.

What other recent stock sales related to MAR are disclosed in the past three months?

The notice lists several related sales, including MAYO CLINIC selling 21,600 common shares for $6,413,888.13 on 12/12/2025 and SUBURBAN HOSPITAL FOUNDATION selling 3,400 shares for $1,002,498.50 on 11/24/2025, among others.

What representation does the seller make in this MAR Rule 144 notice?

By signing, the person for whose account the securities are sold represents that they do not know any material adverse information about the issuer’s current or prospective operations that has not been publicly disclosed, consistent with Rule 144 and related 10b5-1 provisions.