New York attorney · Reg. #5543889

Costanza Posarelli

Registered (registry: Currently registered)

Current employer

Sullivan & Cromwell LLP · London Ec4a 1AN · since at least September 2026

Admission

Admitted 2017, Third Department · FORDHAM

Employment history

• Sullivan & Cromwell LLP · London Ec4a 1AN · current

Compiled from NYS Office of Court Administration registration records and published NY Appellate Division decisions; current as of October 2026. Not an official record; verify with the NY Courts Attorney Search.