Organization and Business	6 Months Ended
Jun. 30, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization and Business	1. Organization and Business Organization Reneo Pharmaceuticals, Inc. (Reneo or the Company) is a pharmaceutical company historically focused on the development and commercialization of therapies for patients with rare genetic mitochondrial diseases, which are often associated with the inability of mitochondria to produce adenosine triphosphate. The Company’s only product candidate, mavodelpar, is a potent and selective agonist of the peroxisome proliferator-activated receptor delta (PPARδ). Mavodelpar has been shown to increase transcription of genes involved in mitochondrial function and increase fatty acid oxidation , and may increase production of new mitochondria. On December 14, 2023, the Company announced that its pivotal STRIDE study, a global, randomized, double-blind, placebo-controlled Phase 2b trial of mavodelpar in adult patients with primary mitochondria myopathy due to mitochondrial DNA defects, did not meet its primary or secondary efficacy endpoints. As a result, the Company suspended the development activities for mavodelpar and implemented cash preservation activities, including a substantial workforce reduction. The Company implemented a reduction in workforce in December 2023 and February 2024, and currently has eight full-time employees remaining. In January 2024, the Company’s Board of Directors retained an independent financial advisor to initiate a formal process to evaluate potential strategic alternatives focused on maximizing stockholder value, including, but not limited to, a merger, sale, other business combination, a strategic partnership with one or more parties, or the licensing, sale or divestiture of its assets. The Company is no longer pursuing further clinical development of mavodelpar at this time. On May 10, 2024, the Company entered into an Agreement and Plan of Merger (Merger Agreement and the transactions contemplated thereby, Proposed Transactions) with Radiate Merger Sub I, Inc., a Delaware corporation and its direct, wholly owned subsidiary (Merger Sub I), Radiate Merger Sub II, LLC, a Delaware limited liability company and its direct, wholly owned subsidiary (Merger Sub II), 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, (a) Merger Sub I will merge with and into OnKure (the First Merger), with Merger Sub I ceasing to exist and OnKure surviving the First Merger as its wholly owned subsidiary (Reneo following the First Merger, NewCo), and (b) as promptly as practicable following the First Merger, OnKure, as the surviving corporation of the First Merger, will merge with and into Merger Sub II, with OnKure ceasing to exist and Merger Sub II surviving the Second Merger as a wholly owned subsidiary of NewCo (the Second Merger, and together with the First Merger, the Mergers). At the effective time of the First Merger (the First Effective Time) and upon filing of an amendment to the Company’s amended and restated certificate of incorporation to reclassify its common stock, each share of the Company’s common stock existing and outstanding immediately prior thereto will be recapitalized and remain outstanding as a share of NewCo Class A common stock without any conversion or exchange thereof, subject to a proposed reverse stock split of all of the shares of the Company’s common stock outstanding at the time of effectiveness thereof by a ratio to be determined by OnKure subject to the Company’s approval (the Reverse Stock Split). Upon the First Effective Time, all shares of OnKure capital stock outstanding immediately prior to the First Effective Time, after giving effect to an assumed common stock exchange ratio of 0.24482 and an assumed preferred stock exchange ratio of 1.50062, will be converted into the right to receive approximately 76,958,781 shares of NewCo common stock in the aggregate, which is subject to adjustment as set forth in the Merger Agreement. In connection with the Mergers, on May 10, 2024, the Company concurrently entered into a Subscription Agreement with certain existing OnKure stockholders and new investors (collectively, PIPE Investors) pursuant to which, among other things, the Company agreed to issue to the PIPE Investors shares of NewCo Class A common stock concurrently with the Mergers in a private placement transaction for an aggregate purchase price of $65.0 million, which amount may be increased to up to $85.0 million through additional subscriptions from additional PIPE Investors (the Concurrent PIPE Investments). The closing of the Concurrent PIPE Investments is conditioned upon the satisfaction or waiver of the conditions to the closing of the Mergers and the substantially concurrent closing of the Mergers, as well as certain other conditions. Immediately after the Mergers, pre-Mergers OnKure stockholders are expected to own approximately 69.4% of NewCo on a fully-diluted basis and pre-Mergers Reneo stockholders are expected to own approximately 30.6% of NewCo on a fully-diluted basis. Following the completion of the Concurrent PIPE Investments, assuming a subscription amount of (a) $65.0 million, pre-Mergers OnKure stockholders are expected to own approximately 54.8% of NewCo on a fully-diluted basis, pre-Mergers Reneo stockholders are expected to own approximately 24.2% of NewCo on a fully-diluted basis, and the PIPE Investors are expected to own approximately 21.0% of NewCo on a fully-diluted basis, and (b) $85.0 million, pre-Mergers OnKure stockholders are expected to own approximately 51.5% of NewCo on a fully-diluted basis, pre-Mergers Reneo stockholders are expected to own approximately 22.7% of NewCo on a fully-diluted basis, and the PIPE Investors are expected to own approximately 25.8% of NewCo on a fully-diluted basis. The exchange ratios, and related pro forma ownership, will be adjusted (i) to account for the effect of the proposed Reverse Stock Split and (ii) to the extent that Reneo’s net cash as of the close of business on the business day immediately preceding the closing date of the Mergers is less than $59.0 million or greater than $61.0 million (resulting in pre-Mergers Reneo stockholders owning less or more of NewCo, respectively). The expected relative ownership percentages of pre-Mergers OnKure stockholders and pre-Mergers Reneo stockholders of NewCo are calculated using the treasury stock method, as described in the Merger Agreement. The Mergers, which have been approved by the Company’s Board of Directors and the board of directors of OnKure, are expected to close in the second half of 2024, subject to the satisfaction or waiver of certain closing conditions, including the approval of the Company’s stockholders. Certain stockholders of Reneo holding approximately 28.2% of the outstanding shares of its common stock entered into support agreements with Reneo and OnKure to vote all of their shares of the Company’s common stock in favor of the Mergers, subject to the terms of the support agreements. Although the Company has entered into the Merger Agreement and intends to consummate the proposed Mergers, there is no assurance that the Company will be able to successfully consummate the proposed Mergers on a timely basis, or at all. If, for any reason, the proposed Mergers are not completed, the Company will reconsider its strategic alternatives and could pursue another strategic transaction similar to the proposed Mergers, potential collaborative, partnering or other strategic arrangements for the Company’s assets, including a license, sale or divestiture of its assets, or liquidate and distribute available cash. Liquidity From its inception in 2014, the Company has incurred significant losses and negative cash flows from operations and expects to continue to incur net losses into the foreseeable future and may never become profitable. As of June 30, 2024, the Company had cash, cash equivalents and short-term investments of $76.7 million , which the Company believes will be sufficient to fund the Company’s current operating plan for at least the next 12 months from the date of issuance of these unaudited condensed financial statements.

Organization and Business

6 Months Ended

Jun. 30, 2024

Organization, Consolidation and Presentation of Financial Statements [Abstract]

1. Organization and Business

Organization

Reneo Pharmaceuticals, Inc. (Reneo or the Company) is a pharmaceutical company historically focused on the development and commercialization of therapies for patients with rare genetic mitochondrial diseases, which are often associated with the inability of mitochondria to produce adenosine triphosphate. The Company’s only product candidate, mavodelpar, is a potent and selective agonist of the peroxisome proliferator-activated receptor delta (PPARδ). Mavodelpar has been shown to increase transcription of genes involved in mitochondrial function and increase fatty acid oxidation , and may increase production of new mitochondria.

On December 14, 2023, the Company announced that its pivotal STRIDE study, a global, randomized, double-blind, placebo-controlled Phase 2b trial of mavodelpar in adult patients with primary mitochondria myopathy due to mitochondrial DNA defects, did not meet its primary or secondary efficacy endpoints. As a result, the Company suspended the development activities for mavodelpar and implemented cash preservation activities, including a substantial workforce reduction. The Company implemented a reduction in workforce in December 2023 and February 2024, and currently has eight full-time employees remaining.

In January 2024, the Company’s Board of Directors retained an independent financial advisor to initiate a formal process to evaluate potential strategic alternatives focused on maximizing stockholder value, including, but not limited to, a merger, sale, other business combination, a strategic partnership with one or more parties, or the licensing, sale or divestiture of its assets. The Company is no longer pursuing further clinical development of mavodelpar at this time.

On May 10, 2024, the Company entered into an Agreement and Plan of Merger (Merger Agreement and the transactions contemplated thereby, Proposed Transactions) with Radiate Merger Sub I, Inc., a Delaware corporation and its direct, wholly owned subsidiary (Merger Sub I), Radiate Merger Sub II, LLC, a Delaware limited liability company and its direct, wholly owned subsidiary (Merger Sub II), 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, (a) Merger Sub I will merge with and into OnKure (the First Merger), with Merger Sub I ceasing to exist and OnKure surviving the First Merger as its wholly owned subsidiary (Reneo following the First Merger, NewCo), and (b) as promptly as practicable following the First Merger, OnKure, as the surviving corporation of the First Merger, will merge with and into Merger Sub II, with OnKure ceasing to exist and Merger Sub II surviving the Second Merger as a wholly owned subsidiary of NewCo (the Second Merger, and together with the First Merger, the Mergers). At the effective time of the First Merger (the First Effective Time) and upon filing of an amendment to the Company’s amended and restated certificate of incorporation to reclassify its common stock, each share of the Company’s common stock existing and outstanding immediately prior thereto will be recapitalized and remain outstanding as a share of NewCo Class A common stock without any conversion or exchange thereof, subject to a proposed reverse stock split of all of the shares of the Company’s common stock outstanding at the time of effectiveness thereof by a ratio to be determined by OnKure subject to the Company’s approval (the Reverse Stock Split). Upon the First Effective Time, all shares of OnKure capital stock outstanding immediately prior to the First Effective Time, after giving effect to an assumed common stock exchange ratio of 0.24482 and an assumed preferred stock exchange ratio of 1.50062, will be converted into the right to receive approximately 76,958,781 shares of NewCo common stock in the aggregate, which is subject to adjustment as set forth in the Merger Agreement.

In connection with the Mergers, on May 10, 2024, the Company concurrently entered into a Subscription Agreement with certain existing OnKure stockholders and new investors (collectively, PIPE Investors) pursuant to which, among other things, the Company agreed to issue to the PIPE Investors shares of NewCo Class A common stock concurrently with the Mergers in a private placement transaction for an aggregate purchase price of $65.0 million, which amount may be increased to up to $85.0 million through additional subscriptions from additional

PIPE Investors (the Concurrent PIPE Investments). The closing of the Concurrent PIPE Investments is conditioned upon the satisfaction or waiver of the conditions to the closing of the Mergers and the substantially concurrent closing of the Mergers, as well as certain other conditions.

Immediately after the Mergers, pre-Mergers OnKure stockholders are expected to own approximately 69.4% of NewCo on a fully-diluted basis and pre-Mergers Reneo stockholders are expected to own approximately 30.6% of NewCo on a fully-diluted basis. Following the completion of the Concurrent PIPE Investments, assuming a subscription amount of (a) $65.0 million, pre-Mergers OnKure stockholders are expected to own approximately 54.8% of NewCo on a fully-diluted basis, pre-Mergers Reneo stockholders are expected to own approximately 24.2% of NewCo on a fully-diluted basis, and the PIPE Investors are expected to own approximately 21.0% of NewCo on a fully-diluted basis, and (b) $85.0 million, pre-Mergers OnKure stockholders are expected to own approximately 51.5% of NewCo on a fully-diluted basis, pre-Mergers Reneo stockholders are expected to own approximately 22.7% of NewCo on a fully-diluted basis, and the PIPE Investors are expected to own approximately 25.8% of NewCo on a fully-diluted basis. The exchange ratios, and related pro forma ownership, will be adjusted (i) to account for the effect of the proposed Reverse Stock Split and (ii) to the extent that Reneo’s net cash as of the close of business on the business day immediately preceding the closing date of the Mergers is less than $59.0 million or greater than $61.0 million (resulting in pre-Mergers Reneo stockholders owning less or more of NewCo, respectively). The expected relative ownership percentages of pre-Mergers OnKure stockholders and pre-Mergers Reneo stockholders of NewCo are calculated using the treasury stock method, as described in the Merger Agreement.

The Mergers, which have been approved by the Company’s Board of Directors and the board of directors of OnKure, are expected to close in the second half of 2024, subject to the satisfaction or waiver of certain closing conditions, including the approval of the Company’s stockholders. Certain stockholders of Reneo holding approximately 28.2% of the outstanding shares of its common stock entered into support agreements with Reneo and OnKure to vote all of their shares of the Company’s common stock in favor of the Mergers, subject to the terms of the support agreements. Although the Company has entered into the Merger Agreement and intends to consummate the proposed Mergers, there is no assurance that the Company will be able to successfully consummate the proposed Mergers on a timely basis, or at all. If, for any reason, the proposed Mergers are not completed, the Company will reconsider its strategic alternatives and could pursue another strategic transaction similar to the proposed Mergers, potential collaborative, partnering or other strategic arrangements for the Company’s assets, including a license, sale or divestiture of its assets, or liquidate and distribute available cash.

Liquidity

From its inception in 2014, the Company has incurred significant losses and negative cash flows from operations and expects to continue to incur net losses into the foreseeable future and may never become profitable. As of June 30, 2024, the Company had cash, cash equivalents and short-term investments of $76.7 million , which the Company believes will be sufficient to fund the Company’s current operating plan for at least the next 12 months from the date of issuance of these unaudited condensed financial statements.