Ohio Cannabis Antitrust Lawsuit Targets 9 Major Operators

Ohio’s top legal official is taking aim at some of the biggest names in cannabis.

On February 5, Attorney General Dave Yost filed an Ohio cannabis antitrust lawsuit against nine multistate operators, accusing them of working together to squeeze smaller companies out of the state’s fast-growing adult-use market. The complaint, filed in Franklin County Court of Common Pleas, alleges coordinated conduct that limited product choice and kept prices artificially high.

At issue is how major operators structured retail and distribution agreements in a market that generated roughly $700 million in adult-use sales during its first year.

Key Takeaways

• The Ohio cannabis antitrust lawsuit names nine major multistate operators.
• The state alleges reciprocal trade agreements reduced access for independent Ohio businesses.
• Officials claim the conduct limited consumer choice and supported higher prices.
• Several companies deny wrongdoing and say they will defend the case.
• The Attorney General is seeking court-ordered changes to business practices.

Allegations Behind the Ohio Cannabis Antitrust Lawsuit

According to the complaint, the Ohio cannabis antitrust lawsuit grew out of an October 2024 tip from an industry employee. That tip alleged senior representatives from several companies met in late 2022 and struck agreements to prioritize one another’s products at Ohio dispensaries.

The lawsuit claims some operators set internal quotas reserving significant shelf space for products tied to reciprocal purchasing agreements. Smaller Ohio cultivators and processors, according to the state, were pushed aside.

Yost’s office alleges violations of Ohio’s Valentine Act, the state’s primary antitrust statute enacted in 1898 to prevent unlawful restraints on trade. The law mirrors federal antitrust principles but is enforced at the state level. Prosecutors argue the companies shared competitively sensitive information and engaged in discriminatory distribution practices that suppressed competition.

“Our investigation uncovered allegations of an industry-wide scheme designed to push small Ohio businesses out of the market,” Yost said in announcing the lawsuit.

The complaint describes the alleged coordination as an effort to eliminate independent rivals while maintaining elevated pricing in Ohio’s cannabis market.

Companies Respond to the Ohio Cannabis Antitrust Lawsuit

The lawsuit names Ascend Wellness, Ayr Wellness, The Cannabist Co., Cresco Labs, Curaleaf, Green Thumb Industries, Jushi, Trulieve and Verano.

Green Thumb and Cresco Labs confirmed they received the complaint and are reviewing it but declined additional comment due to pending litigation.

Curaleaf said it is aware of the filing and described the inquiry as premature. The company stated it cooperated with investigators for months and remains open to a good-faith resolution. Curaleaf also emphasized its investment in Ohio jobs and regulated cannabis access.

Ascend Wellness said it intends to vigorously defend against the allegations. The company noted that a significant portion of third-party inventory in its Ohio stores comes from single-state operators.

Why the Ohio Cannabis Antitrust Lawsuit Matters

The Ohio antitrust lawsuit lands at a critical point in the state’s adult-use rollout. Retail shelf space determines which brands survive and which struggle for visibility. In a market producing hundreds of millions in revenue, distribution control carries real economic consequences.

Antitrust law is designed to protect competition itself, not individual competitors. Courts typically examine whether conduct reduced consumer choice, inflated prices or created unfair barriers to entry.

If the state proves coordinated quotas or reciprocal purchasing agreements were used to exclude smaller operators, the court could order injunctive relief. That could mean prohibiting certain agreements, mandating changes to purchasing practices or requiring structural adjustments to ensure open market access.

The outcome may influence how multistate operators structure retail partnerships not only in Ohio but in other expanding adult-use markets.

Conclusion

The Ohio cannabis antitrust lawsuit represents one of the most significant legal tests of market competition in Ohio’s cannabis industry to date. Attorney General Dave Yost argues that dominant operators crossed the line from aggressive business strategy into unlawful coordination. The companies involved deny those claims and say they will defend their conduct in court.

The fight over Ohio’s cannabis market will now unfold in the courtroom, where the state must prove that coordinated retail and distribution practices violated long-standing antitrust law. The ruling could reshape how competition is defined in Ohio’s adult-use era and may set a precedent that reaches beyond state lines.