As previously disclosed, on May 10, 2024, Reneo Pharmaceuticals, Inc., a Delaware corporation (Reneo or the
Company), entered into an Agreement and Plan of Merger (the Merger Agreement) by and among the Company, Radiate Merger Sub I, Inc., a Delaware corporation and a direct, wholly owned subsidiary of
Reneo, Radiate Merger Sub II, LLC, a Delaware limited liability company and a direct, wholly owned subsidiary of Reneo, and OnKure, Inc., a Delaware corporation (OnKure), pursuant to which, and subject to the satisfaction
or waiver of the conditions set forth in the Merger Agreement, OnKure will become a wholly owned subsidiary of the Company (the Merger), which will change its name to OnKure Therapeutics, Inc.
On June 21, 2024, Reneo filed with the Securities and Exchange Commission (SEC) a registration statement on Form S-4 (the Form S-4), as amended on July 29, 2024, August 19, 2024 and August 26, 2024, which contained a preliminary proxy
statement/prospectus. The Form S-4 became effective on August 26, 2024, and a final proxy statement/prospectus (the Proxy Statement/Prospectus) was filed with the SEC on that
day. The Proxy Statement/Prospectus solicits stockholder approval for, among other things, the Merger.
Certain Litigation
In connection with the Merger, two complaints have been filed in the Supreme Court of the State of New York, County of New York, captioned Thomas v. Reneo
Pharmaceuticals, Inc., et al., Index No. 654628/2024 (filed September 5, 2024) and Kent v. Reneo Pharmaceuticals, Inc., et al., Index No. 654642/2024 (filed September 6, 2024) (together, the
Complaints). The Complaints generally allege that the Proxy Statement/Prospectus filed by Reneo with the SEC misrepresents and/or omits certain purportedly material information relating to Reneo managements financial
projections for Reneo and OnKure, the data and inputs underlying the financial valuation analyses that support the fairness opinion provided by Leerink Partners, Reneos financial advisor, and potential conflicts of interest with Leerink
Partners LLC, Evercore Group L.L.C., and LifeSci Capital LLC, which are the placements agents for the concurrent private placement of Reneo common stock that is expected to close concurrently with the Merger. The Complaints assert violations of
negligent misrepresentation and concealment in violation of New York common law and negligence in violation of New York common law. The Complaints seek orders enjoining the proposed Merger, or in the event that the proposed Merger is consummated,
orders rescinding the Merger or awarding actual and punitive damages, as well as all of the plaintiffs fees and expenses in connection with the litigation, including reasonable attorneys and experts fees and expenses.
Reneo cannot predict the outcome of any litigation. Reneo and the individual defendants intend to vigorously defend against the Complaints and any
subsequently filed similar actions. It is possible additional lawsuits may be filed arising out of the Merger between September 16, 2024 and consummation of the Merger. Absent new or significantly different allegations, Reneo will not
necessarily disclose such additional filings.
Reneo believes that the disclosures set forth in the Proxy Statement/Prospectus comply fully with all
applicable laws, and denies the allegations in the Complaints described above. Nevertheless, Reneo has determined to voluntarily supplement certain disclosures in the Proxy Statement/Prospectus with the supplemental disclosures set forth below (the
Supplemental Disclosures). Nothing in the Supplemental Disclosures shall be deemed an admission of the legal merit of the Complaints described above, or of the necessity or materiality under applicable laws of any of the
disclosures set forth herein. To the contrary, Reneo specifically denies all allegations in the Complaints that any additional disclosure was or is required or is material.