{"url_path":"/sec/caba/8-k/2026-06-11/item-5-03","section_key":"item-5-03","section_title":"Item 5.03 Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year.","topic":"sec","document":{"doc_type":"8-K","doc_date":"2026-06-11","source_url":"https://www.sec.gov/Archives/edgar/data/1759138/0001759138-26-000033-index.html","accession_number":"0001759138-26-000033","cik":"0001759138","ticker":"CABA","issuer_name":"Cabaletta Bio, Inc.","edgar_url":"https://www.sec.gov/Archives/edgar/data/1759138/0001759138-26-000033-index.html","primary_entity_key":"0001759138","primary_entity_name":"Cabaletta Bio, Inc."},"word_count":169,"has_tables":true,"body_markdown":"Item 5.03 Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year.\n\nOn June 9, 2026, Cabaletta Bio, Inc. (the “Company”) held its Annual Meeting of Stockholders (the “Annual Meeting”). As further described in Item 5.07 to this Current Report on Form 8-K, at the Annual Meeting, the Company’s stockholders approved an amendment to the Company’s Third Amended and Restated Certificate of Incorporation to increase the number of authorized shares of common stock from 300,000,000 to 600,000,000. On June 9, 2026, the Company filed a Certificate of Amendment to the Company’s Third Amended and Restated Certificate of Incorporation (the “Certificate of Amendment”) with the Secretary of State of the State of Delaware and the Certificate of Amendment became effective on filing. The foregoing description does not purport to be complete and is qualified in its entirety by reference to the full text of the Certificate of Amendment, a copy of which is filed as Exhibit 3.1 to this Current Report on Form 8-K and incorporated herein by reference."}