Opportunity for Six Flags Investors to Lead Class Action Lawsuit for Substantial Losses

Potential Class Action Lawsuit Against Six Flags Entertainment Corporation

On December 3, 2025, the prominent law firm Robbins Geller Rudman & Dowd LLP declared that investors of Six Flags Entertainment Corporation, which was previously CopperSteel HoldCo, Inc. (NYSE: FUN), are invited to take a leading role in a class action lawsuit. This announcement follows significant price drops in Six Flags stock and raises substantial allegations related to the company's merger with Cedar Fair, L.P., executed on July 1, 2024.

Background of the Case

The class action lawsuit, entitled City of Livonia Employees' Retirement System v. Six Flags Entertainment Corporation, is filed in the Northern District of Ohio (Case No. 25-cv-02394). It alleges severe violations of the Securities Act of 1933, implicating both Six Flags and high-ranking executives in a misleading registration statement tied to the merger with Cedar Fair, L.P.

The statement claimed that Six Flags had made substantial investments leading to a competitive edge. However, the lawsuit contends that this was far from reality. In fact, it claims the legacy Six Flags faced chronic underinvestment, lacking the necessary capital to maintain its market position in the fiercely competitive amusement park sector.

Key Allegations

The most critical accusation against Six Flags involves its failure to disclose the essential funding needs required for maintaining and improving its parks. The registration statement provided to investors purportedly downplayed the overwhelming challenges the company faced in terms of capital and operational expenditures needed to sustain its attractions. These omitted disclosures, according to the class action, significantly undermined investors' rationale for participating in the merger.

Moreover, the lawsuit suggests that since Selim Bassoul took over as CEO in November 2021, he undertook drastic cost-cutting measures such as reducing employee numbers. While aimed at improving profitability, these actions reportedly deteriorated the company's operational quality and harmed guest satisfaction—a crucial aspect of the amusement park experience.

On July 1, 2024, the day the merger concluded, shares of Six Flags traded for over $55 per share. In a shocking downturn, the stock plummeted to as low as $20, equating to a staggering 64% loss. Investors who purchased stock during this time and suffered losses are encouraged to act before the lead plaintiff appointment deadline on January 5, 2026.

What Investors Should Do

Interested investors should file their information through the law firm's dedicated webpage to express their desire to take part in the class action as lead plaintiff. The firm is experienced in handling similar securities fraud cases and believes that collective legal action could potentially secure justice and recovery of losses for affected shareholders. Furthermore, those looking for additional guidance can connect directly with attorneys J.C. Sanchez or Jennifer N. Caringal of Robbins Geller.

About Robbins Geller

Robbins Geller Rudman & Dowd LLP is a well-established law firm recognized for representing investors in securities fraud and shareholder litigation. With a proven track record, the firm has successfully recovered over $2.5 billion in 2024 alone, underscoring its prominence in advocating for investor rights. The expertise of Robbins Geller signifies hope for those affected by the Six Flags situation, offering avenues for accountability and financial restitution.

As a collective of 200 attorneys across ten offices, Robbins Geller stands as one of the largest plaintiffs' firms globally. Their history of securing significant recoveries positions them as a valuable ally in this ongoing litigation effort against Six Flags Entertainment Corporation.

Conclusion

In conclusion, the Six Flags Entertainment Corporation class action lawsuit marks a pivotal moment for investors grappling with substantial losses. Those impacted should capitalize on the opportunity to take legal action as details unfold, aiming to restore losses incurred during a tumultuous period in the company’s financial history. Nevertheless, it’s imperative to act swiftly, ensuring eligibility before the looming deadline.

For additional information, visit Robbins Geller's dedicated class action page and seize the potential for financial recovery.