DOJ Weighs Joining State Antitrust Lawsuit Against BlackRock, State Street, Report Says

The U.S. Department of Justice is actively considering whether to join a multi-state antitrust lawsuit against asset management giants BlackRock Inc. and State Street Corp., according to a Bloomberg report citing people familiar with the matter. Senior DOJ officials have recently met with state attorneys general and company representatives, though a final decision has not been made.

Allegations and Background

The lawsuit, originally filed in late 2024 and led by Texas, alleges that the investment firms leveraged their substantial market power and memberships in climate coalitions to suppress coal production and inflate regional energy costs. The case represents one of the most significant legal challenges to the environmental, social, and governance (ESG) investment strategies employed by major financial institutions.

Federal regulators have previously shown interest in the case. In May 2025, the Justice Department and the Federal Trade Commission filed a joint statement of interest, noting that the conduct alleged in the lawsuit, if proven, would constitute an antitrust violation. Direct intervention by the DOJ, however, would substantially escalate the legal pressure on asset managers navigating political and legal scrutiny over climate-related investing.

Ad

Industry Impact and Case Precedent

The litigation has already had a tangible impact on the industry. Vanguard Group Inc., which was initially a co-defendant, settled its part of the case in February. The firm agreed to pay $29.5 million and restrict the use of ESG targets in its portfolios, while denying the lawsuit's underlying claims.

A federal judge ruled in August 2025 that the case against BlackRock and State Street could proceed, opening the door for legal discovery into their proxy voting and corporate engagement practices. Market observers are now watching closely to see if the DOJ's potential entry will transform the state-led effort into a broader federal enforcement action against institutional investors.