Grace Ann Brew is an associate in Cohen Milstein’s Antitrust practice, where she represents a broad range of individuals and businesses in civil litigation, with a focus on multi-district class actions and antitrust litigation.

Prior to joining the firm, Grace Ann was an antitrust associate at a highly regarded national plaintiffs law firm.

Before entering private practice, Grace Ann was a law clerk for the Honorable Maryellen Noreika of the United States District Court for the District of Delaware.

While attending Stanford Law School, Grace Ann was an editor of the Stanford Law Review and the Stanford Journal of Civil Rights & Civil Liberties. She was also the mentorship and faculty co-chair of the Plaintiffs’ Lawyers Association.

Nathan Weiser is an associate in the Securities Litigation & Investor Protection practice, where he represents investors in shareholder derivative lawsuits and securities class actions.

Nathan was also a Cohen Milstein Law Fellow. In this role, he worked on litigation spanning the firm’s antitrust, consumer protection, civil rights and employment, human rights, and securities practice groups. While attending Stanford Law School, Nathan participated in Cohen Milstein’s summer associate program.

Also at law school, Nathan was a clinic student in Stanford Law School’s Religious Liberty Clinic, as well as a summer law clerk for Disability Rights Advocates.

Silvie Saltzman, an associate in Cohen Milstein’s Antitrust practice, represents a broad range of individuals and businesses in civil litigation with a focus on multi-district class actions and antitrust litigation.

Prior to joining Cohen Milstein, Silvie was a law clerk for the Honorable Carol Bagley Amon of the United States District Court for the Eastern District of New York.

While attending Stanford Law School, Silvie was a development editor for the Stanford Law Review.

Publications

• Nora Freeman Engstrom, Todd Venook, David Freeman Engstrom & Silvie Saltzman, Plaintiffs and Attorneys in Multidistrict Litigation: Strengths, Deficits, and Paths Forward, DEBORAH L. RHODE CENTER ON THE LEGAL PROFESSION (May 15, 2023).

Zachary Krowitz is an associate in Cohen Milstein’s Antitrust practice, where he represents a broad range of individuals and businesses in civil litigation, with a focus on multi-district class actions and antitrust litigation.

Prior to joining the firm, Zac served as a law clerk for the Honorable Pamela A. Harris of the U.S. Court of Appeals for the Fourth Circuit. Before his clerkship, he was an associate with a global law firm, where he focused on complex commercial litigation and criminal defense.

In law school, Zac served as symposium co-chair and senior editor for the Stanford Law Review and was a participant in Stanford’s Supreme Court Litigation Clinic, during which he helped drafted merits briefs and cert petitions for the United States Supreme Court. He was also a member of Stanford’s Housing Pro Bono Project, provided pro bono assistance on the direct appeal of a criminal conviction in Colorado state court, and co-authored “Confronting Efforts at Election Manipulation from Foreign Media Organizations” in Securing American Elections: Prescriptions for Enhancing the Integrity and Independence of the 2020 U.S. Presidential Elections and Beyond, Stanford Cyber Policy Center Freeman Spolgi Institute (June 2019).

Before law school, Zac was a staff assistant for U.S. Senator Richard Blumenthal.

Zachary Glubiak, an associate in the Antitrust practice, represents employees, consumers, and small businesses in nationwide class actions seeking to recover for overpriced goods and underpaid wages, with a focus on labor-related violations of the antitrust laws. Zach also maintains a robust pro bono appellate practice, principally on behalf of civil plaintiffs in the state and federal appellate courts.  

Zach first joined Cohen Milstein in 2020, and he rejoined the firm following a clerkship with the Honorable Randolph D. Moss of the United States District Court for the District of Columbia. 

Previously, he served as the John Marshall Fellow in the Solicitor General’s Office of the Virginia Attorney General. In this capacity, Zach litigated constitutional and other high-profile matters on behalf of the Commonwealth, including defending the constitutionality of recently enacted gun safety legislation and the lawfulness of the Governor’s Covid 19-related executive orders. He primarily practiced in the state and federal appellate courts, serving as lead counsel in appeals before the United States Court of Appeals for the Fourth Circuit, presenting oral arguments before both the Supreme Court of Virginia and the Court of Appeals of Virginia, and drafting multiple successful briefs in opposition to certiorari in counseled appeals before the Supreme Court of the United States. 

Prior to joining the Solicitor General’s Office, Zach clerked for the Honorable Pamela A. Harris of the United States Court of Appeals for the Fourth Circuit. 

During law school, Zach participated in the Community Law Clinic, served as Professor Pamela S. Karlan’s teaching assistant for her Constitutional Law course, and co-founded the Stanford Law School’s Plaintiffs’ Lawyers Association. 

Prior to law school, Zach spent three years as a world history teacher, coach, and advisor at KIPP NYC College Prep, a public charter high school in New York City’s South Bronx neighborhood. 

Alicia Gutiérrez is discovery counsel at Cohen Milstein and a member of the Antitrust practice. Her legal practice has focused for more than a decade on complex commercial litigation, with an emphasis on antitrust litigation. Alicia has worked on cases in both state and federal courts, as well as advised clients on investigations and litigation involving government agencies.  

 Alicia also focuses her time identifying and developing potential cases for the Antitrust practice. 

Prior to joining Cohen Milstein, Alicia was counsel and an associate at two notable Washington, DC firms, where she represented both defendants and plaintiffs. Before embarking on her legal career, she was a financial analyst in investment banking at Merrill Lynch and a management consultant at The Boston Consulting Group. 

Brent W. Johnson is a partner at Cohen Milstein and co-chair of the firm’s Antitrust practice. He also leads the practice’s new case investigations. 

Brent has served as lead and co-lead counsel in cases that have compensated class members hundreds of millions of dollars for claims under Sherman Act Sections 1 and 2 and state antitrust laws. He also has initiated and developed cases that have helped break new ground in antitrust law, including those on behalf of workers challenging restraints in labor markets.

Brent leads the Co-Lead Counsel teams in the following notable antitrust class actions:

• Jien v. Perdue Farms, Inc. (D. Md.): Brent leads the Co-Lead Counsel team for Cohen Milstein, representing a proposed class of poultry plant workers, in a suit alleging that the nation’s largest chicken and turkey producers conspired to suppress their compensation. On June 5, 2025, the Court granted final approval to settlements totaling more than $398 million. The Court also found that counsel have “consistently demonstrated strong and vigorous advocacy throughout the litigation, from a thorough pre-suit investigation to extensive discovery to effective settlement negotiations.” On October 14, 2025, the Court preliminarily approved a settlement with the final defendant, Agri Stats, a data vendor for the poultry industry, for injunctive relief that reforms their provision of labor data.
• Brown v. JBS USA Food Company (D. Co.): Brent leads the Co-Lead Counsel team for Cohen Milstein, representing a proposed class of beef and pork plant workers, in a suit alleging that the nation’s largest beef and pork producers conspired to suppress their compensation. Plaintiffs so far have reached settlements totaling more than $200 million. The case is in discovery with the remaining defendants.
• In re Broiler Chicken Antitrust Litigation (N.D. Ill.): Brent leads the Co-Lead Counsel team for Cohen Milstein, representing a class of end-user consumers of broiler chicken in a litigation alleging that the defendants, who include Perdue Farms and Tyson Foods, agreed to restrict the supply of broilers, among other things, thereby raising their price to consumers. As of July 25, 2023, settlements against defendants total $183.9 million. In its December 20, 2021 order granting final approval of settlements with six defendants for a total of $181 million, the Court described co-lead counsel’s work as “exemplary.”
• Scharpf v. General Dyamics Corp. (E.D. Va.): Brent leads the Co-Lead Counsel team for Cohen Milstein, representing a proposed class of naval architects and marine engineers, in a suit alleging that the nation’s largest private contractors and consulting firms who design and build ships for the Navy and Coast Guard conspired to not actively recruit class members and thereby suppress their compensation.
• Dorrell v. Constellation Energy Corp. (D. Md.): Brent leads the Co-Lead Counsel team for Cohen Milstein, representing a proposed class of nuclear engineers and others employed in nuclear power generation, in a suit alleging that the nation’s largest nuclear power companies conspired to exchange compensation data and conduct in-person meetings to align and suppress compensation.

Brent’s work has been repeatedly recognized. He was recognized by The Legal 500 in 2024 and 2025 as a “Leading Lawyer,” an honor bestowed upon thirteen lawyers who lead antitrust civil litigation and class actions. Since 2019, Lawdragon has named him to its list of “500 Leading Plaintiff Financial Lawyers,” and in 2025, it named him to its list of “500 Leading Litigators in America.” Since 2021, Global Competition Review (GCR) has named him to its “Who’s Who Legal: Competition” list for Plaintiffs. He also was named by Super Lawyers a Super Lawyer for Antitrust Litigation in 2020 and 2021. The Antitrust practice has won Law360’s Competition Practice Group of the year twice (2022, 2024) during Brent’s five-year tenure as co-chair with Managing Partner Benjamin Brown.

Brent is a commentator on antitrust and class action issues. In 2016, he provided testimony concerning Rule 23 to the Advisory Committee on Civil Rules on behalf of the Committee to Support the Antitrust Laws. Along with his law partner Emmy Levens, he has published two articles in the ABA’s Antitrust magazine – one on ascertainability in the Spring 2016 issue and another on circuit splits affecting antitrust class actions in the Fall 2019 issue. He is a member of the ABA Section of Antitrust Law, and in July of 2019, he gave an ABA presentation on the legal standard to apply in cases regarding no-poach agreements.