| | | | | | | | | | | | | | | | | | | | | |
Ownership Document |
Schema Version: X0508 |
Document Type: 4 |
Period of Report: 2/22/24 |
Not Subject to Section 16: 0 |
Issuer: |
| Issuer CIK: 1977303 |
| Issuer Name: Arcadium Lithium plc |
| Issuer Trading Symbol: ALTM |
Reporting Owner: |
| Reporting Owner ID: |
| | Owner CIK: 1752661 |
| | Owner Name: Antoniazzi Gilberto |
| Reporting Owner Address: |
| | Owner Street 1: C/O SUITE 12, GATEWAY HUB |
| | Owner Street 2: SHANNON AIRPORT HOUSE |
| | Owner City: SHANNON |
| | Owner State: L2 |
| | Owner ZIP Code: V14 E370 |
| | Owner State Description: IRELAND |
| Reporting Owner Relationship: |
| | Is Director? No |
| | Is Officer? Yes |
| | Is Ten Percent Owner? No |
| | Is Other? No |
| | Officer Title: CFO, VP & Treasurer |
| | Other Text: |
Aff 10b5 One: 0 |
Non-Derivative Table: |
| Non-Derivative Transaction: |
| | Security Title: |
| | | Value: Ordinary Shares |
| | Transaction Date: |
| | | Value: 2/22/24 |
| | Deemed Execution Date: |
| | Transaction Coding: |
| | | Transaction Form Type: 4 |
| | | Transaction Code: F |
| | | Equity Swap Involved? No |
| | Transaction Timeliness: |
| | Transaction Amounts: |
| | | Transaction Shares: |
| Value: 512 |
| Footnote ID: F1 |
| | | Transaction Price Per Share: |
| Value: 4.69 |
| | | Transaction Acquired-Disposed Code: |
| Value: D |
| | Post-Transaction Amounts: |
| | | Shares Owned Following Transaction: |
| Value: 167,764 |
| | Ownership Nature: |
| | | Direct or Indirect Ownership: |
| Value: D |
Footnotes: |
| Footnote - F1: Represents shares withheld by the Issuer to cover tax obligations from the settlement of vested RSUs. |
Owner Signature: |
| Signature Name: /s/ Sara Ponessa, as attorney-in-fact |
| Signature Date: 2/26/24 |