October Term 2012 · Docket 11-1085

Can a judge decide materiality before certifying a securities class action?

Amgen argues that materiality is an individual issue. Plaintiffs claim it is a common question for the whole class.

Official caption
Amgen Inc. v. Connecticut Retirement Plans and Trust Funds
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Verified source milestones

  1. — An official oral-argument transcript was verified.

The arguments, in order

This case may have been argued more than once. Each entry below uses that session's official transcript. Later arguments do not erase earlier ones.

  1. Argument 1 ·

    What happened at the argument

    Waxman stated that the core of a 10b-5 claim is individual reliance.

    Sherry argued that Rule 23 focuses on whether common issues predominate.

    Frederick contended that certification determines if the case generates common answers.

    Read the official transcript for this argument · Official argument details

    Sources used for this argument breakdown

A citizen's guide to the whole case

What this case is about

The case tests whether a judge can resolve materiality at the class certification stage. This step happens before a full trial on the merits.

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How the case got here

The Supreme Court heard oral argument in this case on November 5, 2012.

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What each side wants

Amgen wants the Court to bar judges from deciding materiality at certification.

Plaintiffs want the Court to allow judges to decide materiality at certification.

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What each side says

Amgen argues that materiality depends on each investor's unique reliance.

Plaintiffs argue that materiality is a common question for all class members.

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What the justices asked

Justice Kagan asked if a judge can dismiss a suit for immateriality at certification.

Justice Kagan asked if a judge can keep an individual case after ruling a statement immaterial.

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Why it matters

This dispute shapes how securities fraud cases proceed. It determines whether individual investors must prove reliance separately. It affects the cost and speed of class action litigation.

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What happens next

This article currently covers the argument record. Use the official docket link for later case activity.

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Official Court provenance

Official docket and case history · Official Supreme Court oral-argument detail page

Title and summary sources

Revision history

  1. Revision 1 · Official Transcript ·

    Correction: Rewritten to the concise citizen-facing editorial standard.

  2. Revision 2 · Official Transcript ·

    Correction: Migrated to the dated official Court activity contract without model use.

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