The U.S. Supreme Court has narrowed the ability of private investors to challenge investment fund practices under one of America’s most significant securities statutes, delivering a victory to a group of asset managers led by BlackRock.
In a 6-3 ruling, the court overturned lower-court decisions that had allowed hedge fund Saba Capital Master Fund to pursue legal action under the Investment Company Act of 1940. The dispute centered on corporate bylaws adopted by several closed-end funds that limit the voting influence of large activist shareholders.
Writing for the majority, Justice Amy Coney Barrett concluded that the Investment Company Act does not grant private parties broad authority to seek the cancellation of fund bylaws or contractual provisions they believe violate the law. According to the court, neither the language nor the framework of the statute suggests that Congress intended investors to enforce most of its provisions through private lawsuits.
The ruling drew a sharp dissent from the court’s three liberal justices, who disagreed with the majority’s interpretation of the decades-old law.
At the heart of the case were closed-end investment funds, which issue a fixed number of shares and often trade at prices that differ from the value of their underlying assets. Several of these funds, organized under Maryland law, adopted so-called control-share provisions designed to curb the voting power of investors accumulating large stakes.
Saba Capital, led by activist investor Boaz Weinstein, challenged those restrictions after acquiring positions in a number of the funds. The hedge fund argued that the voting limitations violated a provision of the Investment Company Act requiring equal voting rights for all shares. It also maintained that investors should be able to seek court intervention when corporate bylaws conflict with federal securities law.
Saba initially found success in the lower courts. A federal judge in New York ruled in 2024 that the disputed provisions breached the Investment Company Act and ordered their removal. The decision was later upheld by the 2nd U.S. Circuit Court of Appeals.
The funds then took the fight to the Supreme Court, arguing that the statute contains no private right of action allowing investors to bring such claims. The justices ultimately agreed.
Supporters of the decision said it provides certainty for closed-end funds and protects long-term shareholders from activist campaigns that can pressure funds into short-term actions. Representatives of the prevailing funds described the ruling as a significant endorsement of their governance structures.
Weinstein, however, said the decision shifts responsibility to the U.S. Securities and Exchange Commission. He argued that if control-share provisions violate federal law, regulators—not private litigants—must now take the lead in addressing them.
The judgment is expected to have lasting consequences for shareholder activism and securities litigation, reinforcing the Supreme Court’s increasingly cautious approach toward recognizing implied rights for private lawsuits under federal statutes.
