UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 14A

(Rule 14a-101)

INFORMATION REQUIRED IN PROXY STATEMENT

SCHEDULE 14A INFORMATION

Proxy Statement Pursuant to Section 14(a) of The Securities Exchange Act of 1934

(Amendment No. )

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Filed by a Party other than the Registrant ☒

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☐ Preliminary Proxy Statement

☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))

☐ Definitive Proxy Statement

☒ Definitive Additional Materials

☐ Soliciting Material Under Rule 14a-12

CAPITAL SENIOR LIVING CORPORATION

(Name of Registrant as Specified in Its Charter)

ORTELIUS ADVISORS, L.P.

PANGAEA VENTURES, L.P.

PETER DESORCY

(Name of Persons(s) Filing Proxy Statement, if Other Than the Registrant)

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Ortelius Advisors, L.P. (“Ortelius Advisors”), together with the other participants in its solicitation, has filed a definitive proxy statement and accompanying GOLD proxy card with the Securities and Exchange Commission (“SEC”) to be used to solicit votes against the proposed securities issuances by Capital Senior Living Corporation (the “Company”) to affiliates of Conversant Capital LLC as contemplated by an Amended and Restated Investment Agreement entered into by and among such parties, and other Company proposals, at the upcoming special meeting of stockholders of the Company.

On October 6, 2021, Ortelius Advisors issued an additional investor presentation titled “Save Capital Senior Living Corp.,” a copy of which is attached hereto as Exhibit 99.1 and is incorporated herein by reference.