Case C-601/16 P: Judgment of the Court (Fourth Chamber) of 25 March 2021 — Arrow Group ApS, Arrow Generics Ltd v European Commission (Appeal — Competition — Agreements, decisions and concerted practices — Pharmaceutical products — Market for antidepressant medicines (citalopram) — Settlement agreements concerning process patents concluded between a manufacturer of originator medicines holding those patents and manufacturers of generic medicines — Article 101 TFEU — Potential competition — Restriction by object — Characterisation — Calculation of the amount of the fine)