Form 4: Arcadium Lithium General Counsel Sara Ponessa Reports Disposition of Shares and Stock Options Following Rio Tinto Acquisition

Sara Ponessa, General Counsel of Arcadium Lithium, reports the disposition of shares and stock options due to the acquisition by Rio Tinto, with shareholders receiving $5.85 per share.

Summary

• Sara Ponessa, General Counsel, VP & Secretary of Arcadium Lithium plc, filed a Form 4 detailing changes in beneficial ownership on March 6, 2025.
• The filing reports the disposition of ordinary shares and stock options as a result of the acquisition of Arcadium Lithium by Rio Tinto.
• Ponessa disposed of 93,547 ordinary shares and 153,346 restricted stock units.
• These shares were converted into the right to receive $5.85 per share in cash.
• Arcadium restricted stock units were canceled in exchange for restricted stock units with respect to a number of ordinary shares of either Rio Tinto plc or Rio Tinto Limited.
• Arcadium stock options were canceled in exchange for stock options with respect to a number of Listed Shares of equivalent value.
• The Equity Award Conversion Ratio used to determine the number of Listed Shares was 0.0920493627351811.

Sentiment

Score: 6

Explanation: Neutral sentiment as it is a standard regulatory filing related to an acquisition. The information is factual and doesn't convey positive or negative sentiment.

Industry Context

This announcement reflects the ongoing consolidation in the lithium mining industry, with larger players like Rio Tinto acquiring companies to secure resources for battery production.

Stakeholder Impact

• Shareholders received $5.85 per share as part of the acquisition.
• Employees with stock options and restricted stock units had their awards converted to Rio Tinto equivalents.

Key Dates