{"schema_version":"secwatch.filing_event.v1","accession":"0000950170-23-038090","form_type":"8-K","ticker":"KOP","cik":"0001315257","company_name":"Koppers Holdings Inc.","filed_at":"2023-08-03T23:59:59+00:00","discovered_at":"2026-05-14T18:03:33.542276+00:00","generated_at":"2026-06-12T07:25:55.201958+00:00","sec_items":["5.03","9.01"],"event_type":"other","sentiment":"neutral","materiality_score":0.1,"calibrated_materiality_score":0.1,"confidence":"high","headline":"Koppers Holdings amends articles and bylaws for uncertificated shares and SEC Rule 14a-19","bullets":["Board adopted articles amendment on Aug 2, 2023 to require uncertificated common stock; filed with PA Dept of State Aug 3.","Bylaws restated to update director nomination procedures per SEC Rule 14a-19 and reflect recent PA Code changes.","No shareholder approval required under Pennsylvania Associations Code for the amendments.","Technical and conforming changes also made to the bylaws."],"urls":{"canonical":"https://secwatch.observer/filing/0000950170-23-038090","json":"https://secwatch.observer/filing/0000950170-23-038090.json","markdown":"https://secwatch.observer/filing/0000950170-23-038090.md","text":"https://secwatch.observer/filing/0000950170-23-038090.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1315257/000095017023038090/0000950170-23-038090-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1315257/000095017023038090/kop-20230802.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-12T07:25:55.201958+00:00"},"review":{"review_status":"machine_generated","human_reviewed":false,"corrected":false,"correction_note":null,"correction_timestamp":null,"superseded_by":null,"related_filings":[]},"source_grounded_claims":[{"claim_id":"cef93220bb673303744f34745b5b4b8ce7dde1bd","claim":"Koppers Holdings Inc.: Adopted amendment and restatement of bylaws to update director nomination procedures, reflect changes to the Pennsylvania Associations Code, provide for uncertificated shares, and make technical changes (effective 2023-08-02).","evidence_excerpt":"Also on August 2, 2023, the Board adopted an amendment and restatement of the Company’s Second Amended and Restated Bylaws, as adopted on August 2, 2017, in order to, among other things: (i) update the procedures and disclosure requirements for director nominations made under the Company’s existing advance notice requirements to reflect the U.S. Securities and Exchange Commission’s adoption of Rule 14a-19 under the Securities Exchange Act of 1934, as amended; (ii) make changes to reflect various recent amendments to the Code; (iii) provide that all shares of the Company’s Common Stock will be uncertificated, consistent with the Articles Amendment; and (iv) make other technical and conforming changes.","evidence_source":"SEC 8-K Item 5.03/5.05/5.06","evidence_url":"https://www.sec.gov/Archives/edgar/data/1315257/000095017023038090/0000950170-23-038090-index.htm","confidence":0.9,"family_label":"Governance Changes","details":[{"label":"Change","value":"bylaw amendment"},{"label":"Effective","value":"2023-08-02"}],"fact_type":"governance_change"},{"claim_id":"e9bc485a10cfb76f3a0d048d6ff9dcad59a4210e","claim":"Koppers Holdings Inc.: Adopted amendment to Amended and Restated Articles of Incorporation to provide that all shares of common stock will be uncertificated (effective 2023-08-02).","evidence_excerpt":"On August 2, 2023, the Board of Directors (the “Board”) of Koppers Holdings Inc. (the “Company”) determined that it was in the best interests of the Company and its shareholders to adopt, and did adopt, an amendment (the “Articles Amendment”) to the Company’s Amended and Restated Articles of Incorporation in order to provide that all shares of the Company’s common stock, $0.01 par value (“Common Stock”), will be uncertificated.","evidence_source":"SEC 8-K Item 5.03/5.05/5.06","evidence_url":"https://www.sec.gov/Archives/edgar/data/1315257/000095017023038090/0000950170-23-038090-index.htm","confidence":0.9,"family_label":"Governance Changes","details":[{"label":"Change","value":"charter amendment"},{"label":"Effective","value":"2023-08-02"}],"fact_type":"governance_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}