MDL 3047 Explained: The Social Media Youth Addiction Lawsuit

MDL 3047 is the federal multi-district litigation consolidating thousands of personal injury cases against Meta (Instagram, Facebook), ByteDance (TikTok), Snap (Snapchat), and Google/YouTube. The cases allege that these companies designed social media platforms with features that create compulsive use in minors, causing depression, anxiety, eating disorders, self-harm, and suicide. Judge Yvonne Gonzalez Rogers of the Northern District of California oversees the docket.

What Is a Multi-District Litigation?

When hundreds or thousands of plaintiffs across the country file similar lawsuits, federal courts can consolidate them into one MDL for pretrial proceedings. This prevents duplicative discovery, ensures consistent legal rulings on shared questions, and makes the litigation manageable for courts and defendants alike. Each plaintiff retains their own individual case — they simply share the pretrial phase with others in the same MDL.

MDL 3047 was established by the Judicial Panel on Multidistrict Litigation (JPML) in October 2022. The JPML transferred cases from federal courts across the country to the Northern District of California. The Northern District of California was chosen in part because it is where Meta, Google, and other major defendants are headquartered, which streamlines discovery and corporate witness testimony.

Judge Yvonne Gonzalez Rogers

Judge Gonzalez Rogers has presided over high-profile technology cases before — most notably the Epic Games v. Apple antitrust litigation. She is known for moving cases efficiently and holding large corporate defendants to demanding discovery standards. In MDL 3047, she has been aggressive about pushing the litigation toward substantive proceedings, rejecting defense motions that would have stalled the case, and approving bellwether trial pools designed to produce actual courtroom verdicts.

The judge has been particularly active on the question of social media companies' First Amendment defenses. Defendants argued that the algorithms and content moderation choices at the heart of plaintiffs' claims were protected speech. Judge Gonzalez Rogers rejected significant portions of that argument, ruling that product design defect claims — as opposed to editorial decisions about specific speech — can proceed to trial.

How Many Cases Are in MDL 3047?

As of early 2026, MDL 3047 contains well over 10,000 individual cases and the number continues to grow. New cases are filed and transferred to the MDL regularly. The case count reflects only federal court filings — additional cases are proceeding in state court MDLs, most notably in California's JCCP 5255 and in other state consolidated proceedings. The combined federal-and-state case volume makes this one of the largest personal injury litigation complexes currently active in the United States.

What Are the Core Allegations?

Plaintiffs allege that defendants built and deployed products that they knew were psychologically harmful to minors. The specific allegations vary by defendant and platform, but share a common structure:

• Defective design: Infinite scroll, autoplay, push notifications, variable-ratio reinforcement through likes and comments, and recommendation algorithms that escalate emotionally intense content — all designed to maximize time-on-platform regardless of harm to users.
• Failure to warn: Defendants knew their platforms caused measurable psychological harm to teenagers but did not warn parents, users, or regulators in a way that matched what their own internal research showed.
• Negligence: Defendants had the ability to implement protective features for minors — features their own employees proposed internally — and chose not to because doing so would reduce engagement metrics.
• Products liability: The platforms themselves are products, and those products were unreasonably dangerous as designed and deployed to a minor audience.

Defendants Named in MDL 3047

The primary defendants are Meta Platforms (parent company of Instagram and Facebook), ByteDance and TikTok Inc. (TikTok), Snap Inc. (Snapchat), and Google LLC / YouTube. Apple and other companies have appeared in related state litigation. The federal MDL focuses on the platform design and product liability theories; different defendants face varying levels of exposure based on the specific products at issue in each case.

Bellwether Trials: What They Are and Why They Matter

In large MDLs, bellwether trials are test cases selected to be tried before juries. They serve as data points for the broader litigation: both sides see how juries respond to the evidence, which helps predict settlement values and drives global resolution. MDL 3047 has an active bellwether selection process. The first bellwether trials are anticipated in 2025–2026, subject to motion practice and any appeals.

Bellwether verdicts do not automatically bind other plaintiffs, but they heavily influence negotiation dynamics. If a jury returns a substantial plaintiff verdict in a bellwether case, defendants typically become more willing to negotiate a global resolution rather than try each case individually.

Who Can File a Claim?

Cases in MDL 3047 typically involve minors — children under 18 at the time of harm — who experienced diagnosed mental health conditions during a period of significant social media use. Common diagnoses in the case pool include major depression, anxiety disorders, eating disorders (anorexia, bulimia, ARFID), self-harm, and suicide attempts. Cases involving a minor who died by suicide with documented social media use are among the highest-severity claims in the MDL.

Adult users are generally not the target population for MDL 3047, though some cases involving users who began using platforms heavily as minors and continued into adulthood may qualify. Cases involving children as young as 10 or 11 who were given smartphones and social media access are common in the MDL.

What Families Should Do Now

If your child experienced depression, anxiety, an eating disorder, self-harm, or suicidal ideation during a period of social media use, the most important step is to preserve records. Pull screen time data from device settings before it resets. Gather medical and mental health records from every treating provider. Do not delete social media accounts — request a data download from each platform's settings to preserve account history. Document the timeline: when the account was created, how old your child was, and when symptoms first appeared or worsened.

Filing deadlines vary by state. Statutes of limitations for minors are typically tolled until the minor reaches adulthood, but that protection has limits. Consulting with counsel early preserves options; waiting until your child is 18 can reduce recovery potential.

Related Pages on This Site

• How to file a social media youth addiction lawsuit
• Instagram algorithm and teen depression
• Check your eligibility