Instagram CEO Denies 'Clinical Addiction' in Landmark Trial

Mosseri testifies users can't be 'clinically addicted' to social media, as Meta faces lawsuit over mental health impacts.

Published on Feb. 12, 2026

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In a landmark California trial, Instagram CEO Adam Mosseri testified that users cannot be 'clinically addicted' to social media, despite allegations that Meta intentionally designed its platform to be addictive, causing harm to young people. The case, brought by a 20-year-old plaintiff, centers on claims that Instagram's features contributed to her depression, anxiety and body image issues.

Why it matters

This trial is a pivotal moment in the legal battle to hold tech companies accountable for the mental health impacts of their products, particularly on young users. The outcome could reshape how these firms are regulated and compel them to redesign platforms to mitigate addictive features.

The details

Mosseri argued that while individuals can develop unhealthy relationships with social media, this doesn't equate to a clinical addiction. He suggested 'problematic use' is more accurate, and whether usage becomes a problem is subjective. The lawsuit also names YouTube, while Snapchat and TikTok previously settled. Mosseri's testimony is the first from a high-profile exec, as the jury determines if Instagram was a 'substantial factor' in the plaintiff's mental health struggles.

  • The trial began on February 11, 2026.
  • Mosseri testified on February 11, 2026.
  • Zuckerberg is scheduled to testify on February 18, 2026.
  • Mohan is scheduled to testify on February 19, 2026.

The players

Adam Mosseri

The CEO of Instagram, a subsidiary of Meta (Facebook).

K.G.M.

A 20-year-old plaintiff who claims Instagram's features contributed to her depression, anxiety and body image issues.

Meta

The parent company of Instagram, which vehemently denies the claims and argues the plaintiff's challenges predated her social media use.

Mark Lanier

The lead attorney representing the plaintiff, who accused Meta and Google of intentionally creating 'traps' to maximize user engagement.

Mark Zuckerberg

The CEO of Meta, who is scheduled to testify on February 18, 2026.

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What they’re saying

“We must not let individuals continue to damage private property in San Francisco.”

— Robert Jenkins, San Francisco resident (San Francisco Chronicle)

“Fifty years is such an accomplishment in San Francisco, especially with the way the city has changed over the years.”

— Gordon Edgar, grocery employee (Instagram)

What’s next

The judge in the case will decide on Tuesday whether or not to allow Walker Reed Quinn out on bail.

The takeaway

This case highlights growing concerns in the community about repeat offenders released on bail, raising questions about bail reform, public safety on SF streets, and if any special laws to govern autonomous vehicles in residential and commercial areas.