RYTHM, Inc.

Annual Report on Form 10-K

Our 2025 Annual Report on Form 10-K, as amended, accompanies this proxy statement (the “Form 10-K”). The Form 10-K for the year ended December 31, 2025 was filed with the SEC on March 3, 2026. We will furnish, upon written request of any stockholder and the payment of an appropriate processing fee, copies of the exhibits to our Annual Report on Form 10-K. Please address all such requests to RYTHM, Inc., 2220 Hicks Road, Suite 210, Rolling Meadows, Illinois 60008, Attention: Corporate Secretary.

Householding of Special Meeting Materials

Some banks, brokers and other nominee record holders may be participating in the practice of “householding” proxy statements and annual reports. This means that only one copy of such materials may have been sent to multiple stockholders in your household. We will promptly deliver a separate copy of any such document to you if you write or call us at the following address or telephone number: RYTHM, Inc., 2220 Hicks Road, Suite 210, Rolling Meadows, IL 60008, (855) 420-0020, or you can request a copy of any such document by visiting the Special Meeting page of our Internet website atwww.proxyvote.com. If you want to receive separate copies of the annual report or proxy statement in the future, or if you are receiving multiple copies and would like to receive only one copy for your household, you should contact your bank, broker or other nominee record holder, or you may contact us at the above address and telephone number.

YOUR VOTE IS IMPORTANT

PLEASE SIGN, DATE AND RETURN YOUR PROXY CARD

OR VOTE BY TELEPHONE OR VOTE THROUGH

THE INTERNET AS SOON AS POSSIBLE

RYTHM, INC. C/O BROADRIDGE CORPORATE ISSUER SOLUTIONS P.O. BOX 1342 BRENTWOOD, NY 11717 SCAN TO VIEW MATERIALS & VOTE VOTE BY INTERNET Before The Meeting - Go to www.proxyvote.com or scan the QR Barcode above Use the Internet to transmit your voting instructions and for electronic delivery of information up until 10:59 PM CT on August 9, 2026. Have your proxy card in hand when you access the web site and follow the instructions to obtain your records and to create an electronic voting instruction form. During The Meeting - Go to www.virtualshareholdermeeting.com/RYM2026SM You may attend the meeting via the Internet and vote during the meeting. Have the information that is printed in the box marked by the arrow available and follow the instructions. VOTE BY PHONE - 1-800-690-6903 Use any touch-tone telephone to transmit your voting instructions up until 10:59 PM CT on August 9, 2026. Have your proxy card in hand when you call and then follow the instructions. VOTE BY MAIL Mark, sign and date your proxy card and return it in the postage-paid envelope we have provided or return it to Vote Processing, c/o Broadridge, 51 Mercedes Way, Edgewood, NY 11717. TO VOTE, MARK BLOCKS BELOW IN BLUE OR BLACK INK AS FOLLOWS: KEEP THIS PORTION FOR YOUR RECORDS THIS PROXY CARD IS VALID ONLY WHEN SIGNED AND DATED. DETACH AND RETURN THIS PORTION ONLY T01935-TBD RYTHM, INC For Against Abstain The Board of Directors recommends you vote FOR proposal 1. 1. To approve the issuance of shares of Common Stock to the holders of certain convertible promissory notes and warrants and pursuant to shared services agreements in accordance with Nasdaq Listing Rule 5635. NOTE: Such other business as may properly come before the meeting or any adjournment thereof. Please sign exactly as your name(s) appear(s) hereon. When signing as attorney, executor, administrator, or other fiduciary, please give full title as such. Joint owners should each sign personally. All holders must sign. If a corporation or partnership, please sign in full corporate or partnership name by authorized officer. Signature [PLEASE SIGN WITHIN BOX] Date Signature (Joint Owners) Date

Important Notice Regarding the Availability of Proxy Materials for the Special Meeting: The Notice and Proxy Statement is available at www.proxyvote.com. T01936-TBD RYTHM, Inc. Virtual Special Meeting of Stockholders August 10, 2026 10:00 AM CT This proxy is solicited by the Board of Directors The stockholder(s) hereby appoint(s) Benjamin Kovler and Brad Asher, or either of them, as proxies, each with the power to appoint his substitute, and hereby authorize(s) them to represent and to vote, as designated on the reverse side of this ballot, all of the shares of Common Stock of RYTHM, Inc. that the stockholder(s) is/are entitled to vote at the Special Meeting of Stockholders to be held at 10:00 AM CT on August 10, 2026, at www.virtualshareholdermeeting.com/RYM2026SM, and any adjournment or postponement thereof. This proxy, when properly executed, will be voted in the manner directed herein. If no such direction is made, this proxy will be voted in accordance with the Board of Directors’ recommendations. Continued and to be signed on reverse side