Arcadium Lithium plc

Annual report pursuant to Section 13 or 15(d) (amendment)

Certification of termination of registration of a class of securities (Section 12(g))

Post Effective Amendment to S-8

Post Effective Amendment to S-8

Entry into a Material Definitive Agreement

Notification of removal from listing and/or registration on a national securities exchange

Other Events

Annual report pursuant to Section 13 or 15(d)

Results of Operations and Financial Condition

Other Events

Regulation FD Disclosure

Entry into a Material Definitive Agreement

Entry into a Material Definitive Agreement

Entry into a Material Definitive Agreement

Submission of Matters to a Vote of Security Holders

Other Events

Additional Information for Proxy Statement/ Votes

No description available

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers

General form for quarterly reports under Section 13 or 15(d)

Results of Operations and Financial Condition

No description available

Entry into a Material Definitive Agreement

Regulation FD Disclosure

Additional Information for Proxy Statement/ Votes

Additional Information for Proxy Statement/ Votes

Additional Information for Proxy Statement/ Votes

Specialized Disclosure Report

General form for quarterly reports under Section 13 or 15(d)

2.02,9.01

5.07

Definitive Proxy Statement

Additional Information for Proxy Statement/ Votes

General form for quarterly reports under Section 13 or 15(d)

2.02,9.01

Annual report pursuant to Section 13 or 15(d) (amendment)

Annual report pursuant to Section 13 or 15(d) (amendment)

7.01,9.01

Annual report pursuant to Section 13 or 15(d)

2.01,9.01

2.02,9.01

1.01,2.01,2.03,3.01,3.02,3.03,5.01,5.02,5.03,8.01,9.01

Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans

Notification of removal from listing and/or registration on a national securities exchange

Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans

1.01,5.03,9.01

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Notice of Effectiveness

Prospectus Supplement for Primary Offering

Correspondence with the SEC

Correspondence with the SEC

Registration statement under Securities Act of 1933 (amendment)

Letter from the SEC

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Correspondence with the SEC

Registration statement under Securities Act of 1933 (amendment)

Registration statement under Securities Act of 1933 (amendment)

Letter from the SEC

Registration statement under Securities Act of 1933 (amendment)

Correspondence with the SEC

Letter from the SEC

Fochtman Barbara A

Graves Paul W

Fitzpatrick Alan Murray

Oris de Roa Fernando

Heredia Florencia

Lampe-Onnerud Christina

Heywood Leanne

Coleman Peter John

Marcet Pablo

Turner John Stephen Morris

MERKT STEVEN T

BARRY MICHAEL F

Ponessa Sara

Stark Ronald B

Pallash Robert C

Antoniazzi Gilberto

Stark Ronald B

Stark Ronald B

Pallash Robert C

Graves Paul W