Lynch v. Express Scripts Holding Company

District Court, N.D. California·Decided August 5, 2025·No. 3:23-cv-01170·Unknown

Opinion

JONATHAN LYNCH, Case No. 23-cv-01170-AMO

Plaintiff, ORDER RE MOTION TO DISMISS v. Re: Dkt. No. 54 COMPANY, Defendant.

This is a putative class action arising from Plaintiff Jonathan Lynch’s use of Defendant Express Scripts Holding Company’s online pharmacy. Now pending before the Court is Express Scripts’ motion to dismiss Lynch’s second amended complaint. Lynch opposes the motion. The Court, having considered the parties’ papers and the relevant legal authority, GRANTS the motion IN PART and DENIES the motion IN PART for the reasons set forth below. I. BACKGROUND1 Express Scripts is a pharmacy benefits manager serving over 100 million consumers. ECF 51 (“SAC”) ¶ 33. The company runs an online pharmacy, through which it handles millions of prescriptions each year. Id. ¶ 36. The Express Scripts website – www.express-scripts.com – uses the Facebook Pixel. Id. ¶¶ 1, 74. The Pixel is a piece of code that allows Facebook to surreptitiously intercept an individual’s communications with a website, including include page views, button and mouse clicks, names of buttons clicked, microdata, mouse hovers, scrolling, and “other observable website interactions, 1 This background is based on the allegations in Lynch’s second amended complaint, which are taken as true and construed in the light most favorable to him for the purpose of this motion. selections, and communications.” Id. ¶¶ 46, 75-76. Once a user takes any action on the Express Scripts website, such as clicking a button to register, login, or logout of the customer portal, the Facebook Pixel commands the visitor’s device to re-direct the communication between the user and the website to Facebook in real-time. Id. ¶¶ 51, 52. The technology relies on Facebook cookies,2 which enable the company to match a website visitor to that person’s Facebook account. Id. ¶ 49. The Pixel allows developers to measure, optimize, and build audiences for ad campaigns on and off Facebook, which translates to ad revenue for Meta. Id. ¶¶ 29, 31, 42-46. Because the Facebook Pixel was installed on the Express Scripts website, every time Lynch visited the site between April 2022 and December 20223 to obtain prescriptions to treat low insulin and testosterone levels, Facebook received information about the pages and content Lynch viewed, what he clicked on, as well as “mouse clicks and movements, keystrokes, search items, information inputted, pages and content viewed, scroll movements, and copy and paste actions.4 Id. ¶¶ 20, 77. In order to obtain his prescriptions through the site, Lynch had to enter his name, email, address, phone number, payment information, date of birth, gender, insurance information, 2 Facebook uses the “c-user, datr, fr, and fbp” cookies, with browser attribute information, to fingerprint a user’s device. Id. ¶¶ 27, 58. Each Facebook user has a unique c-user cookie value, which “is the Facebook equivalent of a user identification number.” Id. ¶ 59. The datr cookie “identifies [a] person’s specific web browser from which the person is sending the communication” and “is unique to the person’s specific web browser.” Id. ¶ 63. The fr cookie “is an encrypted combination of the c_user and datr cookies.” Id. ¶ 67 (footnote omitted). The fbp cookie “masquerades as a first-party cookie to evade third party cookie blockers and share data more directly between a website that has deployed Pixel and Facebook.” Id. ¶ 68 (footnote omitted). 3 During that period, Lynch also had a Facebook account. Id. ¶¶ 20, 71. He used the same device to access both his Facebook account and the Express Scripts website. Id. ¶ 20.

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Lynch v. Express Scripts Holding Company, (N.D. Cal. 2025).

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