Lauren Weinstein has deep experience representing clients on both sides of the “v.” in a broad range of business disputes in state and federal courts across the country. Weinstein has particular expertise in antitrust litigation. She was appointed as a Special State Attorney General to prosecute antitrust and consumer protection claims on behalf of 39 states in the In re Google Play Store Antitrust Litigation. That representation culminated in an historic $800 million settlement resolving claims by all 50 states and 3 territories against Google. She is currently part of the nationwide class leadership in a case in Chicago involving financial services. She also represented the nation's largest holding company for real estate brokerage brands in a bet-the-company antitrust class action in Kansas City. That representation resulted in a very favorable pretrial settlement avoiding the nearly $5 billion verdict the jury rendered against the remaining co-defendants.
Descended from Cuban and Jewish immigrants, Weinstein is deeply involved in MoloLamken’s diversity efforts. She was a Fellow of the Leadership Council on Legal Diversity and currently serves as MoloLamken’s Diversity Professional for the organization. She also mentors law students of color through The Appellate Project.
Weinstein is fluent in Spanish and French. She grew up speaking Spanish and regularly represents clients with significant operations in, or disputes arising from, Latin America and Spain.
Lawdragon Honors
| Honor | Year | Practice |
|---|---|---|
| The 2025 Lawdragon 500 X – The Next Generation | 2025 | Complex Commercial Litigation, esp. Antitrust |
| Lawdragon 500 Leading Litigators in America | 2022 | Complex Commercial Litigation, esp. Antitrust |
Prior to joining MoloLamken, Weinstein clerked for judges in two of the most dynamic courts in the United States: the Honorable John G. Koeltl of the United States District Court for the Southern District of New York and the Honorable M. Margaret McKeown of the United States Court of Appeals for the Ninth Circuit. She graduated from Harvard Law School and obtained her B.A. magna cum laude from Northwestern University where she was a member of the national-champion policy debate team.
Weinstein has been recognized as a Leading U.S. Litigator by Lawdragon, and as a Next Generation Leader by Lawdragon.
Representative Matters
- Representation of leading provider of native search advertising at remedies phase of United States v. Google, No. 20-cv-3010 (D.D.C.), culminating in testimony of client’s co-CEO at remedies-phase trial
- Representation of classes in appeal seeking reversal of order granting judgment as a matter of law and vacating nearly $5 billion jury verdict in In re NFL’s Sunday Ticket Antitrust Litigation, Nos. 24-5493, -5691 (9th Cir. pending)
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Successful representation of States in In re Google Play Store Antitrust Litigation (N.D. Cal.)
- Secured favorable pretrial settlement for nation’s largest publicly traded holding company for real estate brokerage brands in price-fixing class action (Sitzer v. Nat’l Ass’n of Realtors, No. 19 Civ. 332 (W.D. Mo.))
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Defense on appeal of an order dismissing antitrust claims against global investment manager (Intel Corp. v. Fortress Inv. Grp., 2022 WL 16756365 (9th Cir. Nov. 8, 2022))
- Appointed as liaison counsel for Direct Purchaser Plaintiffs (In re FICO Antitrust Litigation (N.D. Ill. pending))
- Appeal of order dismissing Walker Process monopolization claims by competitor against leading natural-gas tubing company (Fed. Cir. pending)
- Defense on appeal of an order dismissing antitrust claims against a leading telecommunications company (Continental Auto. Sys., Inc. v. Avanci, 27 F.4th 326 (5th Cir. 2022))
- Representation of leading economist and scholar as amicus curiae in In re EpiPen Litigation (44 F.4th 959 (10th Cir. 2022))
- Representation of leading antitrust scholars as amici curiae in Apple v. Pepper, 139 S.Ct. 1514 (2019)
- Representation of putative class in antitrust suit against Carolinas HealthCare System (W.D.N.C., No. 3:18-cv-00095)
- Representation of global financial institutions in multiple RMBS “putback” suits in the Southern District of New York and New York Supreme Court
- Representation of natural gas utility in appeal involving alter-ego and foreign sovereign immunity issues (Gater Assets Ltd. v. AO Moldovagaz, No. 19-3550 (2d Cir. 2021))
- Representation of the Central Bank of Iran in a constitutional challenge to the Iran Threat Reduction and Syria Human Rights Act of 2012 (Bank Markazi v. Peterson, 136 S. Ct. 1310 (2016)) and in ongoing proceedings
- Defense on appeal of nearly $50 million jury verdict in securities fraud suit (In re Vivendi, S.A. Sec. Litig., 838 F.3d 223 (2d Cir. 2016))