Rezolute, Inc. (RZLT) Investigation

As recently as mid-November, Rezolute assured investors that “in both the real-world setting as well as in clinical studies, erso has shown the potential to substantially eradicate hypoglycemia and improve the quality of life for individuals living with hyperinsulinism[]” and that the Phase 3 study “is poised to be able to rigorously demonstrate the efficacy and safety of ersodetug[.]”

The company also said that an “incredible market opportunity […] lies before us[]” and that after validating the current market assumptions it has “an even greater market opportunity than initially expected[.]”

Investor disappointment abruptly set in on December 11, 2025. That day, Rezolute shocked them when the company announced results of the Phase 3 trial that appeared to contrast with previous assurances. The company said the study did not meet its primary endpoint and the reduction in hypoglycemia events was not statistically significant when compared to placebo. In addition, erso did not meet its secondary endpoint (which assessed change in average daily percent time in hypoglycemia by continuous glucose monitoring) when compared to placebo.

The markets swiftly reacted, sending the price of Rezolute shares crashing as much as 90% that day. Analysts also swiftly reacted, with one reportedly slashing Rezolute’s rating from outperform to neutral and the price target from $12 to $1.

FREQUENTLY ASKED QUESTIONS ABOUT THE CASE

What is the RZLT investigation about?

We are focused on the degree to which Rezolute may have misled investors about erso’s true efficacy and commercial prospects.

WHAT SHOULD I DO?

I worked at RZLT. What should I do?

If you were an employee of RZLT, you may have valuable information that could be relevant to the investigation. Hagens Berman is one of the nation’s top whistleblower law firms, and has successfully represented many individuals who come forward with information regarding corporate malfeasance. Under the new SEC Whistleblower program, whistleblowers who provide original information may receive rewards totaling up to 30 percent of any successful recovery made by the SEC. For more information, contact Reed Kathrein at 844-916-0895 or RZLT@hbsslaw.com.

There are multiple law firms participating, do I need to contact all of them?

No, you do not need to contact all participating law firms. Generally, class-action investigations and lawsuits are consolidated into a single case to streamline the legal process, and attorneys from only a few law firms are selected to serve in a leadership role on the consolidated case. Hagens Berman has a proven track record of being appointed to leadership roles in complex, multidistrict litigation regarding investor fraud and other consumer rights issues, and your claim will be handled by attorneys who have helped secure approximately $325 billion in class-action settlements on behalf of individuals who have suffered due to corporate malfeasance and the wrongdoing of other powerful institutions.

AM I ELIGIBLE?

What is the threshold amount to be eligible? What are “substantial” losses?

The threshold amount and the definition of "substantial" losses may vary depending on a number of factors specific to the case, including the size of the company, market cap, shares outstanding and who holds them and the damages alleged by the fraud. In general, to be eligible to participate in a class-action lawsuit, you must be able to demonstrate that you suffered financial losses as a result of the alleged wrongdoing and that your losses meet the criteria set by the court or law firm. Fill out the form and submit your losses.

CAN I PARTICIPATE?

Am I affected? What do I need to do to participate?

If you were an investor in RZLT, you may be affected and eligible to participate in the case. To determine your eligibility and potential involvement, fill out the form and submit your losses.

Can any RZLT investor participate?

In most class-action investigations and cases, any investor who meets the eligibility criteria, including purchasing the shares during the relevant period, can participate, regardless of the size of their investment. Fill out the form to find out your rights.

I bought on a non-U.S. Exchange. Can I participate?

No. This investigation only covers shares bought on a U.S. exchange, i.e. NASDAQ or NYSE. Fill out the form to find out your rights.

Am I included if I still hold my shares, or do I need to sell to participate?

Participation is based on purchasing shares during the relevant period, rather than your current holdings. Accordingly, you do not need to sell to participate. Fill out the form to find out your rights.