Additional Proxy Soliciting Materials (Form DEFA14A)

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 14A

Proxy Statement Pursuant to Section 14(a) of the

Securities Exchange Act of 1934

Filed by the Registrant ☒

Filed by a Party other than the Registrant ☐

Check the appropriate box:

CNL Healthcare Properties, Inc.

(Name of Registrant as Specified In Its Charter)

(Name of Person(s) Filing Proxy Statement, if other than the Registrant)

Payment of Filing Fee (Check all boxes that apply):

Why Should I Vote? As a stockholder, you have the right to vote on important matters. Your vote is needed to approve the proposals outlined in the proxy statement, including a proposal to approve the transaction between CNL Healthcare Properties (CHP) and Sonida Senior Living (NYSE: SNDA) (Sonida). If approved, all shares of CHP’s common stock will be converted into rights to receive a combination of cash and unrestricted, freely tradable Sonida stock — providing the opportunity for CHP stockholders to receive full liquidity. This is your opportunity to make a direct impact on your investment. Your vote counts! If you do not vote on the proposal to approve the merger, the effect will be the same as voting AGAINST the proposal, as described in the proxy materials. Please vote today to help us obtain the votes needed to approve the transaction and avoid delays in the delivery of liquidity to you and all our stockholders. Ways to Vote ProxyVote 800.690.6903 Important Information For holders as of December 30, 2025 Vote Common Shares by: March 5, 2026 Control Number: 0123456789012345 Cautionary Note Regarding Forward-Looking Statements Forward-looking statements are based on current expectations and may be identified by words such as “believes,” “anticipates,” “expects,” “may,” “could” and terms of similar substance, and speak only as of the date made. Actual results could differ materially due to risks and uncertainties that are beyond the company’s ability to control or accurately predict, including the amount and timing of anticipated future distributions, estimated per share net asset value of the company’s stock and/or other matters. The company’s forward-looking statements are not guarantees of future performance. Shareholders and financial professionals should not place undue reliance on forward-looking statements. While CNL Healthcare Properties’ management believes the assumptions underlying the forward-looking statements and

information are reasonable, such information is necessarily subject to uncertainties and may involve certain risks, many of which are difficult to predict and are beyond management’s control. These risks include, but are not limited to: (1) the occurrence of any event, change or other circumstances that could give rise to the termination of the Merger Agreement; (2) the nature, cost and outcome of any litigation and other legal proceedings, including any such proceedings related to the Transactions that may be instituted against the parties and others following announcement of the Merger Agreement; (3) the inability to consummate the Transactions within the anticipated time period, or at all, due to any reason, including the failure to obtain the requisite shareholder approval, failure to obtain any required regulatory approvals or the failure to satisfy other conditions to completion of the Transactions; (4) risks that the proposed Transactions disrupt current plans and operations of CNL Healthcare Properties or diverts management’s attention from its ongoing business; (5) the ability to recognize the anticipated benefits of the Transactions; (6) the amount of the costs, fees, expenses and charges related to the Transactions; (7) the risk that the Merger Agreement may be terminated in circumstances requiring CNL Healthcare Properties to pay a termination fee; (8) the effect of the announcement of the Transactions on the ability of CNL Healthcare Properties to retain and hire key personnel and maintain relationships with its tenants and others with whom it does business; (9) the effect of the announcement of the Transactions on CNL Healthcare Properties’ operating results and business generally; (10) the other risks and important factors contained and identified in CNL Healthcare Properties’ filings with the SEC, such as CNL Healthcare Properties’ Annual Report on Form 10-K for the fiscal year ended Dec. 31, 2024, as well as CNL Healthcare Properties’ subsequent reports on Form 10-K, Form 10-Q or Form 8-K filed from time to time; and (11) the risks, uncertainties and factors set forth under “Item. 1A. Risk Factors” in Sonida’s Annual Report on Form 10-K for the fiscal year ended Dec. 31, 2024, filed with the SEC on March 17, 2025, and as such factors may be updated from time to time in Sonida’s other filings with the SEC, any of which could cause actual results to differ materially from the forward-looking statements in this communication. Additional Information about the Proposed Transactions and Where to Find It This does not constitute a solicitation of any vote or approval in connection with the transaction. In connection with the proposed transaction, Sonida has filed a registration statement on Form S-4 (File No. 333-292187) (“Registration Statement”), which was declared effective by the Securities and Exchange Commission (“SEC”) on Jan. 6, 2026, that will serve as a prospectus for the Parent Common Stock to be issued as consideration in the transaction and Sonida and the Company have each filed a joint proxy statement as a proxy statement of the Company for the solicitation of our stockholders in favor of the transactions, among other proposals, and of Sonida for the solicitation of Sonida’s stockholders in favor of the issuance of the share consideration (the “Joint Proxy Statement/Prospectus”) with the SEC. This communication is for informational purposes only, is neither an offer to purchase nor a solicitation of an offer to sell shares and is not a substitute for the Joint Proxy Statement/Prospectus or any other document that the Company may file with the SEC or send to its stockholders in connection with the Transactions. THE REGISTRATION STATEMENT AND THE JOINT PROXY STATEMENT/ PROSPECTUS CONTAIN IMPORTANT INFORMATION ABOUT THE COMPANY, SONIDA, THE PROPOSED TRANSACTION, THE PLAN OF DISSOLUTION, AND RELATED MATTERS. BEFORE MAKING ANY VOTING DECISION WITH RESPECT TO THE TRANSACTIONS, STOCKHOLDERS OF THE COMPANY ARE URGED TO READ THE REGISTRATION STATEMENT AND THE JOINT PROXY STATEMENT/PROSPECTUS (INCLUDING ALL AMENDMENTS AND SUPPLEMENTS THERETO) AND ANY OTHER DOCUMENTS FILED WITH THE SEC CAREFULLY WHEN THEY ARE AVAILABLE. The registration statement, the proxy statement/prospectus and other documents can be obtained free of charge through the website maintained by the SEC at sec.gov, at the Company’s website at cnlhealthcareproperties.com under the tab “Filings” and then “SEC Filings” and on Sonida’s investor relations website at investors.sonidaseniorliving.com under the tab “Financials” and “SEC Filings.” Participants in the Solicitation The Company and its directors and executive officers and Sonida and its directors and executive

officers and other members of their respective management and employees may be deemed participants in the solicitation of proxies from the Company’s stockholders in connection with the proposed transactions and the issuance of shares of Sonida Common Stock. Information regarding the special interests of these directors, executive officers, management and employees in the proposed transactions are included in the joint proxy statement/prospectus referred to above and other relevant materials that have been or will filed with the SEC, when they become available, including in connection with the solicitation of proxies to approve the proposed Transactions and the issuance of shares of Parent Common Stock. Additional information regarding the Company’s directors and executive officers is also included in the Company’s Annual Report on Form 10-K for the fiscal year ended Dec. 31, 2024, which was filed with the SEC on March 12, 2025, and subsequent statements of changes in beneficial ownership on file with the SEC. Additional information regarding Sonida’s directors and executive officers is also included in Sonida’s proxy statement for its 2025 Annual Meeting of Stockholders, which was filed with the SEC on April 29, 2025, and in Form 3 and Form 4 statements of beneficial ownership and statements of changes in beneficial ownership of Sonida’s officers and executive officers filed with the SEC and in other documents filed by Sonida with the SEC. The filed documents are available free of charge on the SEC’s website at sec.gov and from the Company and Sonida by contacting them as described above. Other information about the participants in the proxy solicitation will be contained in the joint proxy statement/prospectus. View documents: Notice of Meeting and Proxy Statement | Shareholder Letter | © 2025 Broadridge Financial Solutions Inc. P.O. Box 1310, Brentwood, NY 11717 ProxyVote and Broadridge are trademarks of Broadridge Financial Solutions Inc. CUSIP is a registered trademark of the American Bankers Association. All other registered marks belong to their respective owners. Email Settings | Terms and Conditions | Privacy Statement