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Securities Fraud Loss Causation

A&O Shearman

Northern District Of California Narrows Claims In Securities Class Action Against Medical Devices Company

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On June 3, 2025, Judge Jacqueline S. Corley of the Northern District of California granted in part a motion to dismiss a putative securities class action brought against a medical devices company (the “Company”), its CEO, and...more

IMS Legal Strategies

The Power of Analogies in Securities Litigation

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In high-stakes securities litigation, trial teams often find themselves at a crossroads—how do you present intricate financial concepts to a jury that may have little to no background with the industry and relevant laws? The...more

Cooley LLP

Deciding Issue of First Impression, Fourth Circuit Holds Short-Seller Report Could Not Support Loss Causation – in Significant...

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On April 8, 2025, the US Court of Appeals for the Fourth Circuit affirmed the US District Court for the District of Maryland’s dismissal of all claims in Defeo et al. v. IonQ, Inc. et al., a securities class action asserting...more

A&O Shearman

Northern District Of California Dismisses Putative Securities Class Action Against Grocery Delivery Company For Failure To...

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On May 9, 2025, Judge Edward J. Davila of the Northern District of California granted a motion to dismiss a purported securities class action against a grocery delivery company (the “Company”), certain of its officers and...more

Morrison & Foerster LLP

Securities Fraud Claims Based on Short Reports

Is a report by a short seller followed by a stock decline enough to plead securities fraud? This month, the Fourth Circuit considered this issue. In Defeo v. IonQ, Inc., a group of investors sued IonQ, a developer of quantum...more

A&O Shearman

Fourth Circuit Affirms District Court’s Denial Of Motion To Amend A Securities Fraud Class Action Against Quantum Computing...

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On April 8, 2025, the United States Court of Appeals for the Fourth Circuit affirmed the district court’s denial of a motion to amend a class action complaint against a quantum computing company (the “Company”) and the...more

A&O Shearman

Northern District Of California Grants Summary Judgment To Software Company In Securities Class Action

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On April 10, 2025, Judge Charles R. Breyer of the United States District Court for the Northern District of California granted a motion for summary judgment in favor of a software company (the “Company”) in a purported class...more

Sheppard Mullin Richter & Hampton LLP

Fourth Circuit Rejects the Use of Short-Seller Report as a Basis for Satisfying Loss Causation Element in Securities Fraud Action

The United States Court of Appeals for the Fourth Circuit recently joined a growing consensus among federal appellate courts: short-seller reports, without more, rarely suffice to plead loss causation under the federal...more

Alston & Bird

The Fourth Circuit Joins the Ninth Circuit in Curtailing Plaintiffs’ Use of Short Seller Reports to Plead Federal Securities...

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Our Securities Litigation Group examines the Fourth Circuit decision to limit plaintiffs’ use of short seller reports to plead federal securities claims....more

A&O Shearman

Middle District Of Florida Denies Motion To Dismiss Federal Securities Action Against Retailer Holding Plaintiff Adequately...

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On December 4, 2024, Judge John L. Badalamenti of the United States District Court for the Middle District of Florida denied a motion to dismiss a putative securities fraud action against a retail company (the “Company”), its...more

A&O Shearman

Second Circuit Affirms District Court’s Summary Judgment Dismissal Of Securities Fraud Class Action Against Pharmaceutical Company

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On April 15, 2024, the United States Court of Appeals for the Second Circuit affirmed in a non-precedential summary order the summary judgment dismissal of securities fraud claims against a pharmaceutical company (the...more

A&O Shearman

Ninth Circuit Reinstates Putative Class Action Against Children’s Entertainment Company, Holding Actionable Misstatements And Loss...

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On April 5, 2024, the United States Court of Appeals for the Ninth Circuit affirmed in part and reversed in part the dismissal of a putative class action asserting claims under the Securities Exchange Act of 1934 against a...more

A&O Shearman

Southern District Of New York Declines To Dismiss Putative Class Action Against Financial Institution Regarding Alleged...

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On February 23, 2024, Judge Katherine Polk Failla of the United States District Court for the Southern District of New York largely denied a motion to dismiss a putative class action asserting claims under the Securities...more

A&O Shearman

Eastern District Of Pennsylvania Dismisses Purported Securities Fraud Class Action Against IT Services Company For Failure To...

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On February 1, 2024, Judge Gerald J. Pappert of the United States District Court for the Eastern District of Pennsylvania granted a motion to dismiss a putative securities class action against an IT solutions company that...more

A&O Shearman

Northern District Of California Pares Claims In Putative Class Action Regarding Purchase Of Social Media Platform

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On December 11, 2023, Judge Charles Breyer of the United States District Court for the Northern District of California narrowed a putative class action asserting claims under the Securities Exchange Act of 1934 against the...more

A&O Shearman

Southern District Of New York Dismisses Proposed Securities Class Action Complaint Against Drug Manufacturer For Failure To Plead...

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On September 25, 2023, Judge Lorna Schofield of the United States District Court for the Southern District of New York granted a motion to dismiss a proposed class action against a biopharmaceutical company (the “Company”)...more

Cooley LLP

Eleventh Circuit Reiterates Loss Causation not a Given at Pleading Stage

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Securities class action plaintiffs and defendants often disagree about the degree of difficulty to plead loss causation at the motion to dismiss phase. The US Court of Appeals for the Eleventh Circuit recently shed some light...more

A&O Shearman

Fourth Circuit Affirms Dismissal Of Putative Class Action Under Section 14(a) For Failure To Adequately Allege Material Omissions...

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On June 1, 2023, the United States Court of Appeals for the Fourth Circuit affirmed the grant of summary judgment dismissing claims under Sections 14(a) of the Securities Exchange Act of 1934 against a financial company and...more

A&O Shearman

Central District Of California Dismisses With Prejudice Suit Against Children’s Cartoon Company And Finds That The Complaint...

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On July 15, 2022, the United States District Court for the Central District of California granted a motion to dismiss a putative class action against a children’s cartoon company (the “Company”) and certain of its officers...more

A&O Shearman

Northern District Of California Grants Motion To Dismiss Securities And Exchange Act Claims Against Mobile Gaming Technology...

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On July 5, 2022, Chief Judge Richard Seeborg of the Northern District of California granted motions to dismiss a putative securities class action asserting claims under Section 10(b) of the Securities Exchange Act of 1934...more

A&O Shearman

Southern District Of Ohio Declines To Dismiss Putative Class Action Against Energy Company Regarding Alleged Bribery Scheme

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On March 7, 2022, Judge Algenon L. Marbley of the Southern District of Ohio largely denied a motion to dismiss a putative class action asserting claims under the Securities Exchange Act of 1934 (“Exchange Act”) and the...more

Skadden, Arps, Slate, Meagher & Flom LLP

Inside the Courts – An Update From Skadden Securities Litigators - March 2022

Class Certification - Central District of California Denies Class Certification in Securities Fraud Action Concerning Company’s Purchase of ADRs - Stoyas v. Toshiba Corp., No. 2:15-cv-04194 (C.D. Cal. Jan. 7, 2022) - ...more

Proskauer - Corporate Defense and Disputes

Securities Litigation: An Emerging Strategy to Hold Companies Accountable for Privacy Protections

A California federal judge rejected Zoom Video Communications, Inc.’s motion to dismiss securities fraud claims against it, and its CEO and CFO, for misrepresenting Zoom’s privacy protections....more

A&O Shearman

Northern District Of California Dismisses Putative Class Action Against Social Media Company For Failure To Adequately Allege...

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On December 20, 2021, the United States District Court for the Northern District of California dismissed a putative class action against a social media company and certain of its executives under the Securities Exchange Act. ...more

Skadden, Arps, Slate, Meagher & Flom LLP

Inside the Courts – An Update From Skadden Securities Litigators - October 2021

This quarter’s issue of Inside the Courts — An Update From Skadden Securities Litigators includes summaries and associated court opinions of selected cases principally decided in May-August 2021....more

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