Professor Andreas Stephan has been certified to act as class representative and the claim has been certified on an opt-out basis. The CPO Judgment is available here. A copy of the CPO Notice is available here.

Professor Stephan successfully defends Amazon’s opt-in application.

| Published: Tuesday, 08 September 2026 | 1 minute read

On 8 September 2026, the Competition Appeal Tribunal dismissed Amazon’s application to vary the Collective Proceedings Order in the Stephan v Amazon proceedings. Amazon sought to require certain larger third-party sellers to opt into Professor Stephan’s claim. However, the claim remains certified on an opt-out basis.

Further information is available on the Tribunal’s case page here.

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