$5.25M+ Mount Sinai Settlement Ends Class Action Lawsuit Over Alleged Data Sharing with Facebook

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A more than $5.25 million settlement will resolve a class action lawsuit that alleged Mount Sinai Health System collected patients’ personal health information and shared the data with Facebook without consent.

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The Mount Sinai settlement received preliminary approval from the court on June 16, 2025 and covers all Mount Sinai MyChart account holders who logged into their account through https://MyChart.MountSinai.org between October 27, 2020 and October 27, 2023.

The court-approved website for the Mount Sinai class action lawsuit settlement can be found at MountSinaiSettlement.com.

Mount Sinai settlement class members—approximately 1,314,147 people—who submit a timely, valid claim form will be able to receive a pro-rata, or equal share, portion of the $5,256,588 settlement fund after the payment of legal fees, administration costs and lead plaintiff awards.

To submit a claim form online, class members can visit this page on the Mount Sinai settlement website and log in with the unique ID found in their copy of the settlement notice.

Alternatively, a PDF of the claim form is available to print, fill out and mail back to the address listed on the first page of the form.

All claim forms must be submitted online or postmarked by October 14, 2025.

A hearing is set for October 24, 2025 to determine whether the Mount Sinai settlement will receive final court approval. Payments will begin to be distributed to class members only after final approval has been granted and any appeals have been resolved.

The Mount Sinai class action lawsuit alleged that Mount Sinai Health System collected consumers’ personal health data via third-party tracking software, including the Meta Pixel, on its MyChart website and distributed that data to Facebook without patients’ consent or knowledge.

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