--- schema_version: "secwatch.filing_event.v1" accession: "0000950103-23-017749" form_type: "8-K" ticker: null cik: "0001977303" company_name: "Arcadium Lithium plc" filed_at: "2023-12-20T23:59:59+00:00" generated_at: "2026-06-07T10:10:14.685539+00:00" event_type: "m_and_a" sentiment: "positive" materiality_score: 0.75 calibrated_materiality_score: 0.75 confidence: "high" source: SEC EDGAR --- # Arcadium Lithium completes approvals for Livent-Allkem merger; appoints new board and officers ## Summary - Livent stockholders approved merger; each Livent share converts into 2.406 Arcadium shares. - Allkem shareholders voted in favor of scheme; Australian Federal Court approved on Dec 20. - New board of 12 directors appointed effective at closing; committee assignments disclosed. - Paul W. Graves named CEO/President; Gilberto Antoniazzi CFO; Sara Ponessa General Counsel; Ronald B. Stark CAO. - Three current directors resigned effective at closing per merger agreement; no disagreements. ## SEC filing metadata - accession: 0000950103-23-017749 - form_type: 8-K - cik: 0001977303 - company_name: Arcadium Lithium plc - filed_at: 2023-12-20T23:59:59+00:00 - event_type: m_and_a - sentiment: positive - materiality_score: 0.75 - calibrated_materiality_score: 0.75 - confidence: high - sec_items: 5.02, 8.01 - EDGAR index: https://www.sec.gov/Archives/edgar/data/1977303/000095010323017749/0000950103-23-017749-index.htm - EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1977303/000095010323017749/dp204249_8k-2.htm ## Machine-readable alternates - HTML: https://secwatch.observer/filing/0000950103-23-017749 - JSON: https://secwatch.observer/filing/0000950103-23-017749.json - Plain text: https://secwatch.observer/filing/0000950103-23-017749.txt ## Key facts - Executive change Donal Flynn resigned as Director at Arcadium Lithium plc. - Action: resigned - Role: Director source text: Each of the members of the Current Arcadium Board, Gilberto Antoniazzi, Juan Carlos Cruz Chellew and Donal Flynn, submitted resignations from the board of directors of Arcadium effective upon the Effective Time and subject to the Closing. evidence_url: https://www.sec.gov/Archives/edgar/data/1977303/000095010323017749/0000950103-23-017749-index.htm - Executive change Ronald B. Stark was appointed as Chief Accounting Officer at Arcadium Lithium plc. - Action: appointed - Role: Chief Accounting Officer source text: On December 15, 2023, the Current Arcadium Board appointed Paul W. Graves as Chief Executive Officer and President, Gilberto Antoniazzi as Chief Financial Officer, Vice President and Treasurer, Sara Ponessa as General Counsel, Vice President and Secretary, and Ronald B. Stark as Chief Accounting Officer evidence_url: https://www.sec.gov/Archives/edgar/data/1977303/000095010323017749/0000950103-23-017749-index.htm - Executive change Juan Carlos Cruz Chellew resigned as Director at Arcadium Lithium plc. - Action: resigned - Role: Director source text: Each of the members of the Current Arcadium Board, Gilberto Antoniazzi, Juan Carlos Cruz Chellew and Donal Flynn, submitted resignations from the board of directors of Arcadium effective upon the Effective Time and subject to the Closing. evidence_url: https://www.sec.gov/Archives/edgar/data/1977303/000095010323017749/0000950103-23-017749-index.htm - Executive change Gilberto Antoniazzi resigned as Director at Arcadium Lithium plc. - Action: resigned - Role: Director source text: Each of the members of the Current Arcadium Board, Gilberto Antoniazzi, Juan Carlos Cruz Chellew and Donal Flynn, submitted resignations from the board of directors of Arcadium effective upon the Effective Time and subject to the Closing. evidence_url: https://www.sec.gov/Archives/edgar/data/1977303/000095010323017749/0000950103-23-017749-index.htm - Executive change Gilberto Antoniazzi was appointed as Chief Financial Officer, Vice President and Treasurer at Arcadium Lithium plc. - Action: appointed - Role: Chief Financial Officer, Vice President and Treasurer source text: On December 15, 2023, the Current Arcadium Board appointed Paul W. Graves as Chief Executive Officer and President, Gilberto Antoniazzi as Chief Financial Officer, Vice President and Treasurer, Sara Ponessa as General Counsel, Vice President and Secretary, and Ronald B. Stark as Chief Accounting Officer evidence_url: https://www.sec.gov/Archives/edgar/data/1977303/000095010323017749/0000950103-23-017749-index.htm - Executive change Paul W. Graves was appointed as Chief Executive Officer and President at Arcadium Lithium plc. - Action: appointed - Role: Chief Executive Officer and President source text: On December 15, 2023, the Current Arcadium Board appointed Paul W. Graves as Chief Executive Officer and President, Gilberto Antoniazzi as Chief Financial Officer, Vice President and Treasurer, Sara Ponessa as General Counsel, Vice President and Secretary, and Ronald B. Stark as Chief Accounting Officer evidence_url: https://www.sec.gov/Archives/edgar/data/1977303/000095010323017749/0000950103-23-017749-index.htm - Executive change Sara Ponessa was appointed as General Counsel, Vice President and Secretary at Arcadium Lithium plc. - Action: appointed - Role: General Counsel, Vice President and Secretary source text: On December 15, 2023, the Current Arcadium Board appointed Paul W. Graves as Chief Executive Officer and President, Gilberto Antoniazzi as Chief Financial Officer, Vice President and Treasurer, Sara Ponessa as General Counsel, Vice President and Secretary, and Ronald B. Stark as Chief Accounting Officer evidence_url: https://www.sec.gov/Archives/edgar/data/1977303/000095010323017749/0000950103-23-017749-index.htm This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.