{"filing":{"accession_number":"0001759138-26-000033","cik":"0001759138","ticker":"CABA","company_name":"Cabaletta Bio, Inc.","form":"8-K","filing_date":"2026-06-11","report_date":null,"primary_document":"caba-20260609.htm","primary_document_url":"https://www.sec.gov/Archives/edgar/data/1759138/000175913826000033/caba-20260609.htm"},"events":[{"id":5537,"run_id":4857,"accession_number":"0001759138-26-000033","anchor_item_number":"5.07","event_type":"shareholder_vote_results","event_domain":"governance","is_material":true,"confidence":0.98,"summary":"Cabaletta Bio held its Annual Meeting of Stockholders on June 9, 2026, at which stockholders voted on and approved six proposals: election of two Class I directors (Scott Brun, M.D. and Shawn Tomasello, MBA), ratification of Ernst \u0026 Young LLP as auditor, approval of a charter amendment increasing authorized common shares from 300 million to 600 million, an advisory vote on named executive officer compensation, and approval of an adjournment proposal.","company_name":"Cabaletta Bio, Inc.","ticker":"CABA","filing_date":"2026-06-11","form":"8-K","submitted_at":null,"items":[{"id":6074,"accession_number":"0001759138-26-000033","item_number":"5.03","item_title":"Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year.","event_type":"other_material","event_domain":"catchall","is_material":true,"confidence":0.65,"reasoning":"The filing discloses an amendment to the Certificate of Incorporation increasing authorized common shares from 300 million to 600 million, approved by stockholders at the June 9, 2026 Annual Meeting and filed with Delaware. While this is a structural corporate action that could signal future dilution or capital-raising plans, it does not fit neatly into the more specific event categories (it is not a shareholder vote result per se, nor a dilutive issuance itself, nor a routine bylaw amendment). The doubling of authorized shares is material to investors assessing dilution risk, warranting disclosure as a material event outside the standard taxonomy.","classifier_version":"claude-haiku-4-5-20251001+prompt-9e0ffca5","taxonomy_version":"v1","classified_at":"2026-06-11T11:02:11.670526+00:00","company_name":"","ticker":null,"filing_date":""},{"id":6075,"accession_number":"0001759138-26-000033","item_number":"5.07","item_title":"Submission of Matters to a Vote of Security Holders.","event_type":"shareholder_vote_results","event_domain":"governance","is_material":true,"confidence":0.98,"reasoning":"This is a classic Item 5.07 disclosure reporting the results of Cabaletta Bio's Annual Meeting held on June 9, 2026. The filing presents detailed voting tallies for all six proposals, including election of two Class I directors (Scott Brun, M.D. and Shawn Tomasello, MBA), ratification of Ernst \u0026 Young LLP as auditor, approval of a charter amendment to increase authorized shares from 300M to 600M, advisory vote on named executive officer compensation, and approval of an adjournment proposal. All material proposals were approved by stockholders.","classifier_version":"claude-haiku-4-5-20251001+prompt-9e0ffca5","taxonomy_version":"v1","classified_at":"2026-06-11T11:02:11.670526+00:00","company_name":"","ticker":null,"filing_date":""}]}],"classifications":[{"id":6074,"accession_number":"0001759138-26-000033","item_number":"5.03","item_title":"Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year.","event_type":"other_material","event_domain":"catchall","is_material":true,"confidence":0.65,"reasoning":"The filing discloses an amendment to the Certificate of Incorporation increasing authorized common shares from 300 million to 600 million, approved by stockholders at the June 9, 2026 Annual Meeting and filed with Delaware. While this is a structural corporate action that could signal future dilution or capital-raising plans, it does not fit neatly into the more specific event categories (it is not a shareholder vote result per se, nor a dilutive issuance itself, nor a routine bylaw amendment). The doubling of authorized shares is material to investors assessing dilution risk, warranting disclosure as a material event outside the standard taxonomy.","classifier_version":"claude-haiku-4-5-20251001+prompt-9e0ffca5","taxonomy_version":"v1","classified_at":"2026-06-11T11:02:11.670526+00:00","company_name":"Cabaletta Bio, Inc.","ticker":"CABA","filing_date":"2026-06-11"},{"id":6075,"accession_number":"0001759138-26-000033","item_number":"5.07","item_title":"Submission of Matters to a Vote of Security Holders.","event_type":"shareholder_vote_results","event_domain":"governance","is_material":true,"confidence":0.98,"reasoning":"This is a classic Item 5.07 disclosure reporting the results of Cabaletta Bio's Annual Meeting held on June 9, 2026. The filing presents detailed voting tallies for all six proposals, including election of two Class I directors (Scott Brun, M.D. and Shawn Tomasello, MBA), ratification of Ernst \u0026 Young LLP as auditor, approval of a charter amendment to increase authorized shares from 300M to 600M, advisory vote on named executive officer compensation, and approval of an adjournment proposal. All material proposals were approved by stockholders.","classifier_version":"claude-haiku-4-5-20251001+prompt-9e0ffca5","taxonomy_version":"v1","classified_at":"2026-06-11T11:02:11.670526+00:00","company_name":"Cabaletta Bio, Inc.","ticker":"CABA","filing_date":"2026-06-11"}]}