v3.25.2
Document and Entity Information
Jun. 26, 2025
Cover [Abstract]  
Security Exchange Name NASDAQ
Amendment Flag true
Entity Central Index Key 0001764974
Document Type 8-K/A
Document Period End Date Jun. 26, 2025
Entity Registrant Name Turnstone Biologics Corp.
Entity Incorporation State Country Code DE
Entity File Number 001-41747
Entity Tax Identification Number 82-2909368
Entity Address, Address Line One 9310 Athena Circle
Entity Address, Address Line Two Suite 3000
Entity Address, City or Town La Jolla
Entity Address, State or Province CA
Entity Address, Postal Zip Code 92037
City Area Code (347)
Local Phone Number 897-5988
Written Communications false
Soliciting Material false
Pre Commencement Tender Offer false
Pre Commencement Issuer Tender Offer false
Security 12b Title Common Stock, ($0.001 par value)
Trading Symbol TSBX
Entity Emerging Growth Company true
Entity Ex Transition Period false
Amendment Description Turnstone Biologics Corp. (the “Company”) is filing this Amendment No. 1 to its Current Report on Form 8-K (the “Amendment”) originally filed with the Securities and Exchange Commission (the “SEC”) on June 27, 2025 (the “Original Form 8-K”), solely to refile a corrected Exhibit 2.1 (Agreement and Plan of Merger, dated June 26, 2025 (the “Merger Agreement”)) to the Original Form 8-K. The copy of the Merger Agreement filed as Exhibit 2.1 to the Original Form 8-K inadvertently omitted the form of CVR Agreement and the form of Support Agreement (each as defined in the Merger Agreement) as Exhibit C and Exhibit D to the Merger Agreement, respectively. The corrected version of the Merger Agreement is filed as Exhibit 2.1 hereto and supersedes and replaces in its entirety Exhibit 2.1 to the Original Form 8-K. Except as stated in this Explanatory Note, this Amendment does not otherwise change or update the disclosure set forth in the Original Form 8-K.