Rezolute, Inc.: Form 10-Q for the period ended Sep 30, 2025

Certain figures, such as interest rates and other percentages included in this section have been rounded for ease of presentation. Percentage figures included in this section have not in all cases been calculated on the basis of such rounded figures but on the basis of such amounts prior to rounding. For this reason, percentage amounts in this section may vary slightly from those obtained by performing the same calculations using the figures in our unaudited condensed consolidated financial statements or in the associated text. Certain other amounts that appear in this section may similarly not sum due to rounding. As used in the discussion below, “we,” “our,” “us,” and the “Company” refers to Rezolute, Inc.

We are a late-stage rare disease company focused on developing biologics that significantly improve the quality of life for patients and their families.

Our priorities going into the end of 2025 and first half of 2026 are to execute across our two Phase 3 clinical trials. Our goals include (i) complete the sunRIZE study (as defined below) to enable topline data in December 2025, (ii) continue enrollment in the registrational tumor hyperinsulinism study, and (iii) assuming supportive data from sunRIZE, submit a Biologics License Application to the Food and Drug Administration for ersodetug in mid-2026.

Ersodetug for congenital hyperinsulinism (“HI”)

Congenital HI is the most common cause of recurrent and persistent hypoglycemia in children. Individuals with congenital HI typically present with signs or symptoms of hypoglycemia shortly after birth. Hypoglycemia can result in significant brain injury and death if not recognized and managed appropriately. Additionally, recurrent, or cumulative, hypoglycemia can lead to progressive and irreversible damage over time, including serious and devastating brain injury, seizures, neuro-developmental problems, feeding difficulties, and significant impact on patient and family quality of life. In cases where individuals have diffuse disease, a near-total pancreatectomy may be undertaken, although ongoing medical treatment of hypoglycemia is generally required for several years after surgery, before eventual insulin-dependent diabetes ensues. There are no Food and Drug Administration (“FDA”) approved therapies for all forms of congenital HI, and the current standard of care treatments are suboptimal. The treatments used by physicians today include glucagon, diazoxide, somatostatin analogues and pancreatectomy. We estimate that in the U.S. alone the addressable market for congenital HI is more than 1,500 individuals.

Ersodetug has received Orphan Drug Designation in the U.S. and European Union for the treatment of congenital HI, as well as Rare Pediatric Disease Designation in the U.S., a prerequisite for a request for a Rare Pediatric Disease Priority Review Voucher upon Biologics License Application (“BLA”) submission. Based on the multinational Phase 2b clinical trial outcomes and the evidence of benefit in this serious condition with substantial unmet medical need, ersodetug was subsequently granted a priority medicines (“PRIME”) designation by the European Medicines Agency (“EMA”), an Innovation Passport designation by the UK Innovative Licensing and Access Pathway (“ILAP”) Steering Group for the treatment of congenital HI, and Breakthrough Therapy Designation by the FDA in the U.S.

sunRIZE Phase 3 Study

The sunRIZE study is a global, randomized, double-blind, placebo-controlled, parallel arm evaluation of ersodetug in participants 3 months of age and older with congenital HI who are not adequately responding to standard of care medical therapies. The primary endpoint is change in average number of hypoglycemia events (blood sugars below 70 mg/dL) per week. Additional endpoints include change in average daily percent time in hypoglycemia, change in severe hypoglycemia events and time, time in a target glucose range, and symptomatic hypoglycemia events. The endpoints will be assessed by measuring (i) hypoglycemia events using self-monitored blood glucose (“SMBG”) and (ii) time in hypoglycemia using continuous glucose monitoring (“CGM”) over 24 weeks of treatment. Eligible participants may continue in a long-term extension study following pivotal treatment. Topline results from the study are anticipated to be available in December 2025, but the specific date of the availability of such results may vary.

On July 14, 2025, we presented “Preliminary Patient Demographics and Baseline Characteristics From a Phase 3 Study (sunRIZE) of Ersodetug for Hypoglycemia Due to Congenital Hyperinsulinism: Trial in Progress” at the Annual Meeting of the Endocrine Society (“ENDO”). Comparable to what was observed in the Phase 2 RIZE study, the average age of study participants is younger (3.4 years) with 35% of the participants under the age of 2. Approximately 95% of the participants were taking one or more standard of care treatments (40% on Diazoxide) and had an average of 15 hypoglycemia events per week with 19% daily time spent in hypoglycemia.

Ersodetug for tumor hyperinsulinism (“HI”)

Tumor HI may be caused by two distinct types of solid tumors: neuroendocrine islet cell tumors (“ICTs”) and non-islet cell tumors (“NICTs”), both of which lead to hypoglycemia due to excessive activation of the insulin receptor. Insulinomas are the most common type of functional ICT and mediate hypoglycemia through excessive insulin production. NICTs are generally associated with relatively large, solid tumors such as hepatocellular carcinoma, fibrosarcoma and mesothelioma, and can cause hypoglycemia by producing and secreting insulin-like paraneoplastic substances such as IGF-2 or related variants that bind to and activate the insulin receptor. This form of hypoglycemia can occur in more than 15 different tumor types.

Current therapies for insulinomas and NICTs can be grouped into two main categories: (a) tumor-directed de-bulking therapies (e.g., surgery, chemotherapy, radiotherapy), which may indirectly and/or eventually lead to decreased levels of circulating insulin and/or insulin-like substances, and therefore control HI and related hypoglycemia; and/or (b) medical therapies such as glucocorticoids that are used to attempt to treat the hypoglycemia. Tumor-directed therapies do not directly treat hypoglycemia caused by insulinomas or NICTs. In many cases, tumor-directed therapies are administered concurrently with medical therapies for hypoglycemia and in other cases successful treatment of hypoglycemia often enables the initiation and/or continuation of tumor-directed therapies, as indicated. During the period from diagnosis to surgical treatment, or if surgery is contraindicated or refused, medical treatments are often necessary to directly manage the HI and hypoglycemia induced by the tumor. Additionally, chronic medical management of refractory hypoglycemia is often necessary for patients who cannot be cured by surgery, such as those with extensive disease of the pancreas, multi-focal insulinomas, inoperable or unresectable benign or malignant insulinomas, metastatic insulinomas, non-pancreatic insulinomas, or NICT hypoglycemia resulting from a variety of other tumors.

A significant unmet need exists for treatment options with improved efficacy and tolerability, as normalization of glucose levels is crucial to prevent serious signs and symptoms of hypoglycemia, improve patient quality of life and overall function, and even to ensure patients are fit to receive cancer treatment and to reduce mortality. Unfortunately, some patients are unresponsive to the current standard of care medical therapies for tumor HI and experience debilitating hypoglycemia that is otherwise untreatable. Currently available medical therapies are directed at reducing or eliminating insulin production and/or secretion from tumors, which may be challenging when the tumor is differentiated or dysregulated, and therefore not responding to usual control mechanisms for suppressing insulin production. In some cases, commonly utilized somatostatin analog therapies may even worsen hypoglycemia due to suppression of glucagon. Therefore, currently available medical therapies directed at suppressing insulin production may have limited effectiveness in tumor HI.

While we believe the total addressable market may be larger, the immediately addressable market for the combined indications causing tumor HI is estimated to be approximately 1,500 patients in the U.S. alone.

upLIFT Phase 3 Study

In mid-2025 we initiated the Phase 3 registrational study (“upLIFT”) of ersodetug for the treatment of hypoglycemia due to tumor HI. Topline results from the study are anticipated to be available in the second half of calendar 2026, but the specific date of the availability of such results may vary.

At a meeting held with FDA on August 19, 2025, the agency agreed to modifications to the design of the study including removing the need to conduct a double-blind randomized placebo-controlled trial. The truncated study will include as few as 16 participants and will be limited to the single-arm open-label portion of the upLIFT study. Utilizing Breakthrough Therapy Designation, we plan to engage further with FDA to discuss the necessary data package to support a BLA filing and potential approval for the tumor HI indication, as an expansion of the congenital HI indication.

The upLIFT study is a Phase 3 registrational, single-arm, open-label, pivotal trial in as few as 16 participants with tumors who have uncontrolled hypoglycemia caused by tumor HI. Eligible participants requiring continuous intravenous (“IV”) glucose will receive ersodetug 9 mg/kg per week for 8 weeks, as an add-on to standard of care. Following this 8-week pivotal treatment period, all participants may receive ersodetug in long-term extension. The primary endpoint is the number of participants achieving at least a 50 percent reduction from baseline in IV glucose requirements (glucose infusion rate; “GIR”). Additional endpoints include the time to discontinuation of glucose infusion, time to discharge from the hospital, extent of hypoglycemia events and hypoglycemia time in the outpatient setting by SMBG and CMG, respectively, and patient reported quality of life.

Expanded Access Program (“EAP”)

We maintain an EAP for a variety of HI indications for the purpose of making ersodetug available on a compassionate use basis when available therapeutic options have failed, and an individual’s hypoglycemia is unmanageable. In clinical and real-world experience, ersodetug has been shown to counteract excessive insulin action downstream, at the insulin-receptor on target organs. The unique mechanism of action of ersodetug makes the therapy a potential universal treatment for any form of HI. To date, we have received over 25 unsolicited inbound physician inquiries regarding the use of ersodetug in patients with tumor HI caused by metastatic insulinomas or non-islet cell tumors, which has thus far resulted in the request, approval, and initiation of ersodetug in 13 ICT and NICT patients. In the U.S., these requests have all been individually approved by the FDA's Office of Cardiology, Hematology, Endocrinology and Nephrology - Division of Diabetes, Lipid Disorders, and Obesity (“Division”). The tumor HI patients that have received ersodetug have been refractory to the standard of care therapies for chronic management of hypoglycemia. These patients have generally required continuous intravenous dextrose or nutritional infusion in order to prevent severe hypoglycemia and were typically hospitalized and in life-threatening or hospice-bound condition at the time of request. Further treatment with tumor-directed therapies (e.g., embolization, radiotherapy, chemotherapy) was often deferred as a result of the debilitating hypoglycemia.

Generally, dosing for tumor HI patients has been either 6 mg/kg or 9 mg/kg every 1-4 weeks. In all cases to date, ersodetug has led to substantial improvement in hypoglycemia and has been well tolerated. Within a relatively short period of time after administration of ersodetug, continuous intravenous dextrose was discontinued or substantially reduced, and hospitalized patients were able to be discharged and receive maintenance ersodetug doses on an outpatient basis, with durable benefit. In several cases, other background medical therapies to prevent hypoglycemia were able to be weaned or stopped, and patients were able to resume tumor-directed therapies for treatment of their underlying cancer. No participants have discontinued the therapy due to lack of response or safety, and the duration of treatment has ranged from several months to more than one year in several instances, in this subset of tumor HI patients with significantly advanced and metastatic tumor burden.

Six patients with congenital HI are currently receiving ersodetug as part of our EAP, which has served to support patients on a compassionate use basis prior to availability of the Phase 3 sunRIZE clinical trial. These participants were refractory to usual therapies and include one infant where off-label or surgical (pancreatectomy) therapies were being considered. The duration of treatment in these participants ranges from one to approximately 3 years, with ongoing benefit.

Recent Developments

Appointment of Chief Commercial Officer. On August 18, 2025, the Board of Directors approved the appointment of Sunil Karnawat to serve as our Chief Commercial Officer. In connection with the appointment, we entered into an employment agreement, effective August 18, 2025, that provides for the following compensation: (i) an annual base salary of $475,000; (ii) a signing bonus of $65,000, (iii) eligibility to receive an annual performance bonus with a target of 40% of Mr. Karnawat’s base salary, on December 31st of each year; (iv) an inducement grant pursuant to Nasdaq Listing Rule 5635(c)(4) in the form of stock options to purchase 275,000 shares of our common stock (the “Inducement Grant”), and (v) 25,000 shares of restricted stock units (“RSUs”). The stock options issued as the Inducement Grant will vest and become exercisable as to 25% of the underlying shares on the first anniversary of the grant date, and will vest and become exercisable as to the remaining 75% of the underlying shares in 36 equal monthly installments from the first anniversary of the grant date, subject to his continued employment on such vesting dates. If we experience a change of control during his employment, all remaining options will automatically vest.

Factors Impacting our Results of Operations

We have not generated any meaningful revenues since our inception in March 2010. Over the last several years, we have conducted private placements and public offerings to raise additional capital, adopted a licensing model to pursue development of product candidates, conducted pre-clinical and clinical trials, and conducted other research and development activities on our pipeline of product candidates.

We do not expect to generate revenue from any of our product candidates until we obtain regulatory approval and commercialize our approved product candidates. We expect to incur operating losses for the foreseeable future; therefore, we expect to continue efforts to raise additional capital to maintain our current operating plans over the next several years. We cannot assure you that we will secure such financing or that it will be adequate for the long-term execution of our business strategy. Even if we obtain additional financing, it may be costly and may require us to agree to covenants or other provisions that will favor new investors over our existing shareholders.

Key Components of Consolidated Statements of Operations and Comprehensive Loss

Research and development expenses. Research and development (“R&D”) expenses consist primarily of compensation and benefits for our personnel engaged in R&D activities, clinical trial costs, licensing costs, and consulting and outside services. Our R&D compensation costs include an allocable portion of our cash and share-based compensation, employee benefits, and consulting costs related to personnel engaged in the design and development of product candidates and other scientific research projects. We also allocate a portion of our facilities and overhead costs based on the personnel and other resources devoted to R&D activities.

General and administrative expenses. General and administrative (“G&A”) expenses consist primarily of (i) an allocable portion of our cash and share-based compensation and employee benefits related to personnel engaged in our administrative, finance, accounting, and executive functions, and (ii) an allocable portion of our facilities and overhead costs related to such personnel. G&A expenses also include professional fees for business development, legal, auditing, consulting, investor relations and other costs primarily related to our status as a public company.

Interest and other income. Interest and other income consist primarily of interest income earned on marketable debt securities and temporary cash investments, amortization of investment premiums and accretion of investment discounts, and realized gains on investments in marketable debt securities.

Loss from change in fair value of derivative liabilities. We recognize liabilities for financial instruments that are required to be accounted for as derivatives, as well as embedded derivatives in our debt agreements. Derivative liabilities are adjusted to fair value at the end of each reporting period until the contracts are settled, expire, or otherwise meet the conditions for equity classification. Changes in fair value are reflected as a gain or loss in our unaudited condensed consolidated statements of operations and comprehensive loss.

Critical Accounting Policies and Significant Judgments and Estimates

Overview

The discussion herein is based on our unaudited condensed consolidated financial statements, which have been prepared in accordance with accounting principles generally accepted in the United States. The preparation of these unaudited condensed consolidated financial statements requires us to make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the unaudited condensed consolidated financial statements, as well as the reported revenue and expenses during the reporting periods. These items are monitored and analyzed for changes in facts and circumstances, and material changes in these estimates could occur in the future. We base our estimates on historical experience and on various other factors that we believe are reasonable under the circumstances, the results of which form the basis for making judgments about the carrying value of assets and liabilities that are not readily apparent from other sources. Changes in estimates are reflected in reported results for the period in which they become known. Actual results may differ from these estimates under different assumptions or conditions.

With respect to our significant accounting policies that are described in Note 1 to our consolidated financial statements included in Item 8 of our 2025 Form 10-K, we believe that the following accounting policies involve a greater degree of judgment and complexity. Accordingly, these are the policies we believe are the most critical to aid in fully understanding and evaluating our consolidated financial condition and results of operations.

Investments in Marketable Debt Securities

We account for investments in marketable debt securities as available-for-sale securities whereby they are recorded in our consolidated balance sheets at fair value. Interest income consists of accrued interest earned based on the coupon rate of the security, plus the impact of accreting discounts and amortizing premiums to maturity using the straight-line method which approximates the interest method. Unrealized gains and losses due to subsequent changes in fair value of the investments are reported in shareholders’ equity as a component of accumulated other comprehensive income (loss). The individual debt securities in our portfolio are subject to credit risk in the event of default by the issuers. We review the components of our portfolio of available-for-sale debt securities, using both quantitative and qualitative factors, to determine if declines in fair value below amortized cost have resulted from a credit-related loss or other factors. To the extent that declines in fair value are due to a deterioration of credit quality of the issuer, we will recognize an allowance for credit losses related to such investments with a corresponding loss in the consolidated statements of operations. Allowances for credit losses may be reversed in subsequent periods if conditions improve and credit-related losses are no longer expected. For a decline in fair value that is solely due to changes in interest rates, impairment is not recognized if we have the ability and intent to hold the investment until maturity. The cost basis of any securities sold prior to maturity will be determined using the specific identification method.

Research and Development

R&D costs are expensed as incurred. Intangible assets related to in-licensing costs under license agreements with third parties are charged to expense unless we are able to determine that the licensing rights have an alternative future use in other R&D projects or otherwise.

Clinical Trial Accruals

Clinical trial costs are a component of R&D expenses. We accrue and recognize expenses for clinical trial activities performed by third parties based upon estimates of the percentage of work completed over the life of the individual study in accordance with agreements established with clinical research organizations and clinical trial sites. We determine the estimates through discussions with internal clinical personnel and external service providers as to the progress or stage of completion of trials or services and the agreed-upon fee to be paid for such services. Nonrefundable advance payments for goods and services that will be used or rendered in future R&D activities are deferred and recognized as expense in the period that the related goods are delivered, or services are performed.

Share-Based Compensation Expense

We measure the fair value of services received in exchange for grants of share-based awards based on the fair value of the award as of the grant date. We compute the fair value of the stock option awards with time-based vesting using the Black-Scholes-Merton option-pricing model and recognize the cost of the equity awards over the period that services are provided to earn the award. For stock option awards that contain a graded vesting schedule, and the only condition for vesting is a service condition, compensation cost is recognized on a straight-line basis over the requisite service period as if the award was, in substance, a single award. We recognize the impact of forfeitures in the period that the forfeiture occurs, rather than estimating the number of awards that are not expected to vest in accounting for share-based compensation. For stock options that are voluntarily surrendered, all unrecognized compensation is immediately recognized in the period the options are cancelled. Fair value of RSUs is based on the closing market price on the date of grant whereby compensation cost is recognized ratably over the vesting period of the RSUs.

Results of Operations

Revenue. As a late-stage rare disease company, we did not generate any revenue for the three months ended September 30, 2025 and 2024. We are at a late stage of clinical development and do not currently have any commercial products. Our existing product candidates will require extensive additional clinical evaluation, regulatory review, significant marketing efforts and substantial investment before they generate any revenues. We do not expect to be able to generate revenue from any of our product candidates until we obtain regulatory approval and commercialize our approved product candidates.

Three months ended September 30, 2025 and 2024

Research and development expenses. R&D expenses for the three months ended September 30, 2025 and 2024 were as follows (in thousands, except percentages):

The increase in R&D expenses of $0.4 million for the three months ended September 30, 2025 was attributable to increases of $1.3 million in R&D compensation and benefits, and an increase of $0.7 million in other R&D costs related to quality and patient affairs costs related to the phase 3 clinical study. These increases amount to $2.0 million and were partially offset by a decrease of $1.6 million related to ersodetug clinical and manufacturing costs.

The increase in R&D compensation and benefit related costs of $1.3 million was attributable to (i) an increase of $0.8 million cash-based compensation and benefits due to an increase in the average number of R&D employees from 41 for the three months ended September 30, 2024 to 54 employees for the three months ended September 30, 2025, and (ii) an increase of $0.5 million in share-based compensation related to the stock awards granted in the first half of calendar 2025.

The $1.6 million decrease in ersodetug R&D costs was driven by a decrease of $3.0 million due to lower spending on drug substance and drug product manufacturing, as well as process performance qualification batch productions. This $3.0 million decrease was partially offset by (i) an increase of $1.0 million in clinical costs due to startup activities in 2025 for the tumor HI phase 3 study which we are in preparation for first patient enrollment anticipated in the fourth quarter of calendar 2025, and (ii) an increase of $0.4 million in clinical trial costs due to the completion of enrollment of patients in the congenital HI phase 3 clinical study in May 2025. For the three months ended September 30, 2024, there were de minimis clinical costs incurred for tumor HI related program spend as this study had yet to be initiated and clinical costs for congenital HI were lower because we had not completed enrollment of patients in the sunRIZE study as of September 30, 2024.

General and administrative expenses. G&A expenses for the three months ended September 30, 2025 and 2024 were as follows (in thousands, except percentages):

The increase in G&A expenses of $2.5 million for the three months ended September 30, 2025 was attributable to (i) an increase of $1.1 million in G&A compensation and benefits, and (ii) an increase of $1.4 million in other G&A costs related to business development and market research and planning activities in preparation for future ersodetug commercial activities.

The increase in G&A compensation and benefit related costs of $1.1 million was attributable to (i) an increase of $0.4 million for cash-based compensation and benefits due to an increase in the average number of G&A employees from 18 for the three months ended September 30, 2024 to 21 employees for the three months ended September 30, 2025, and (ii) an increase of $0.7 million in share-based compensation related to the stock awards granted in the first half of calendar 2025.

Interest and other income. Interest and other income amounted to $1.7 million for the three months ended September 30, 2025, compared to $1.6 million for the three months ended September 30, 2024. This increase of $0.1 million was primarily due to the Company having a higher average balance of investments in marketable debt securities throughout the three months ended September 30, 2025 compared to the three months ended September 30, 2024.

Income taxes. For the three months ended September 30, 2025 and 2024, we did not recognize any income tax benefit due to our net losses, and our determination that a valuation allowance was required for all of our deferred income tax assets.

Liquidity and Capital Resources

Short-term Liquidity Requirements

As of September 30, 2025, we had cash and cash equivalents of $9.1 million and short-term marketable debt securities of $143.1 million for total capital resources of $152.2 million. Working capital amounted to approximately $144.5 million as of September 30, 2025. We have incurred cumulative net losses of $422.0 million since our inception and as a clinical stage company we have not generated any meaningful revenue to date.

Accordingly, our primary source of liquidity has historically been from the completion of private placements and public offerings of our equity securities. The completion of equity financings between June 2024 and June 2025 is the primary source of our cash, cash equivalents and short-term investments in marketable debt securities totaling $152.2 million as of September 30, 2025.

Expected cash payments related to existing contractual obligations for the 12-months ending September 30, 2026 include approximately $0.8 million under all of our operating lease agreements.

Based on our cash, cash equivalents and marketable debt security investments totaling $152.2 million as of September 30, 2025, we believe we have adequate capital resources to meet our contractual obligations and carry out ongoing clinical trials and other planned activities for at least 12 months from the issuance date of the unaudited condensed consolidated financial statements for the three months ended September 30, 2025.

Long-term Liquidity Requirements

Our most significant long-term contractual obligations consist of a regulatory milestone payment of $25.0 million payable to XOMA and additional clinical and regulatory milestone payments up to $25.0 million payable to ActiveSite. Due to uncertainties in the timing associated with clinical trial activities and regulatory approvals, there is even greater uncertainty in forecasting the timing of our long-term future clinical and regulatory milestone payments to XOMA and ActiveSite.

In addition to the clinical and regulatory milestone payments discussed above, upon the future commercialization of ersodetug and RZ402 we will be obligated to pay additional milestone payments and alternative indication regulatory approval payments to XOMA and ActiveSite for an aggregate up to $202.5 million and royalties based on the net sales of the related products. These future milestones include $185.0 million in potential payments to XOMA and $17.5 million to ActiveSite for various sales-based milestones and alternative indication regulatory approvals. No assurance can be provided that commercialization will ever be achieved for ersodetug or RZ402, in which case none of these future payments may ever be required.

In addition to our licensing obligations, we also have approximately $0.8 million of long-term contractual obligations under existing operating lease agreements that expire by October 2027.

Based on our current forecast, we expect that our existing capital resources will be sufficient to fund our contractual obligations and carry out ongoing clinical trials and other planned activities for at least 12 months from the issuance date of the unaudited condensed consolidated financial statements for the three months ended September 30, 2025. However, we will need to obtain additional equity or debt financing in order to fund all of our long-term liquidity requirements.

Presented below is an additional discussion about the ongoing requirements pursuant to our license agreements with XOMA and ActiveSite, along with additional information about our ongoing financing activities that impacted our liquidity and capital resources through September 30, 2025.

XOMA License Agreement

In December 2017, we entered into a license agreement (the “XOMA License Agreement”) with XOMA through its wholly-owned subsidiary, XOMA (US) LLC, pursuant to which XOMA granted an exclusive global license to develop and commercialize XOMA 358 (formerly X358 or RZ358, now ersodetug) for all indications. In January 2019, the XOMA License Agreement was amended with an updated payment schedule, as well as revised the amount we were required to expend on development of ersodetug and related licensed products, and revised provisions with respect to our diligence efforts in conducting clinical studies.

Upon the achievement of certain clinical and regulatory events, we will be required to make up to $37.0 million in aggregate milestone payments to XOMA. To date the Company has paid a total of $12.0 million in milestone payments to XOMA. The most recent milestone payment of $5.0 became due in May 2025 upon dosing of the last patient in the Company’s Phase 3 Clinical Trial for ersodetug and was paid in June 2025. We record a liability for milestone payments in our financial statements on the date that we achieve the milestone event. The next milestone payment of $25.0 million will be due upon the first regulatory approval of ersodetug by any regulatory authority. Additionally, upon the future commercialization of ersodetug, we will be required to pay royalties to XOMA based on the net sales of the related products, and milestone payments up to an additional $185.0 million if future annual sales related to ersodetug exceed targets ranging from $100.0 million to $1.0 billion. Through September 30, 2025, no events have occurred that would result in the requirement to make additional milestone payments and no royalties have been incurred.

ActiveSite License Agreement

In August 2017, we entered into a Development and License Agreement with ActiveSite (“ActiveSite License Agreement”) pursuant to which we acquired the rights to ActiveSite’s PKI portfolio. We are planning to use the PKI Program to develop, file, manufacture, market and sell products for diabetic macular edema and other therapeutic indications. The ActiveSite License Agreement requires various milestone payments ranging from $1.0 million to $10.0 million when milestone events occur, up to an aggregate of $46.5 million of aggregate milestone payments. To date the company has paid a total of $4.0 million in milestone payments consisting of (i) $1.0 million in December 2020 for clearance of an initial drug application (“IND”) filed with the FDA, and (ii) $3.0 million in February 2023 after dosing of the first patient in a Phase 2 clinical trial for RZ402. Remaining milestone payments under the ActiveSite License Agreement for various clinical and regulatory milestones amount to $25.0 million and milestones after commercial success or alternative indication approvals amount to $17.5 million. We will also be required to pay royalties equal to 2.0% of any sales of products that use the PKI Program. Through September 30, 2025, no events have occurred that would result in the requirement to make additional milestone payments and no royalties have been incurred.

Cash Flows Summary

Presented below is a summary of our operating, investing, and financing cash flows for the three months ended September 30, 2025 and 2024 (in thousands):

Cash Used in Operating Activities

For the three months ended September 30, 2025 and 2024, cash used in operating activities amounted to $17.4 million and $16.0 million, respectively. The key components in the calculation of our cash used in operating activities are as follows (in thousands):

For the three months ended September 30, 2025, our net loss was $18.2 million compared to $15.4 million for the three months ended September 30, 2024. For further discussion about changes in our operating results for the three months ended September 30, 2025 and 2024, please refer to Results of Operations above.

For the three months ended September 30, 2025 and 2024, our non-cash expenses of $2.7 million and $1.6 million, respectively, were primarily attributable to share-based compensation expense and non-cash lease expense. For the three months ended September 30, 2025 and 2024, accretion of discounts and amortization of premiums on marketable debt securities amounted to $0.8 million. For the three months ended September 30, 2025, net changes in operating assets and liabilities decreased operating cash flow by $1.2 million, primarily driven by cash outflows resulting in a net decrease in accounts payable and other accrued liabilities of $1.8 million. This amount was partially offset by a net decrease of $0.7 million in prepaid expenses and other assets. For the three months ended September 30, 2024, net changes in operating assets and liabilities decreased operating cash flow by $1.4 million, primarily driven by a net decrease of $1.3 million in accounts payable and other accrued liabilities, and an increase in prepaid expenses and other assets of $0.1 million.

Cash Used in Investing Activities

For the three months ended September 30, 2025, our net cash used in investing activities amounted to $68.5 million. For the three months ended September 30, 2025, we received proceeds of $20.4 million upon the maturity of certain marketable debt securities. These cash proceeds from maturities, along with certain proceeds from the 2025 Underwritten Offering in April 2025 and the 2025 Private Placement in June 2025, were used to purchase a total of $88.9 million of marketable debt securities.

For the three months ended September 30, 2024, our net cash used in investing activities amounted to $49.4 million. For the three months ended September 30, 2024, we received proceeds of $23.8 million upon the maturity of certain marketable debt securities. These cash proceeds from maturities, along with certain proceeds from the 2024 Public Underwritten Offering in June 2024 and 2024 Private Placement in July 2024, were used to purchase a total of $73.2 million of marketable debt securities.

Cash Provided by Financing Activities

For the three months ended September 30, 2025, our net cash provided by financing activities was $0.9 million. Cash inflows amounted to $0.9 million from the exercise of stock options.

For the three months ended September 30, 2024, our net cash provided by financing activities was $5.5 million. Cash inflows amounted to $6.1 million, consisting of $6.0 million of proceeds from the 2024 Private Placement and $0.1 million of proceeds from the exercise of employee stock options. These amounts were partially offset by cash outflows related to the payments of offering costs of $0.6 million incurred in connection with the 2024 Public Underwritten Offering.

Recent Accounting Pronouncements

Please refer to Note 1 to our unaudited condensed consolidated financial statements in Part I, Item 1 of this Report regarding the expected impact of recent accounting pronouncements.

Off-Balance Sheet Arrangements

We did not have any off-balance sheet transactions for the periods covered by this Report.

Evaluation of Disclosure Controls and Procedures

As of the end of the period covered by this Quarterly Report on Form 10-Q, we carried out an evaluation, under the supervision and with the participation of our management, including our Chief Executive Officer (our Principal Executive and Financial Officer), of the effectiveness of our disclosure controls and procedures as defined in Rule 13a-15(e) and 15d-15(e) of the Securities Exchange Act of 1934, as amended (“Exchange Act”). Disclosure controls and procedures include, without limitation, controls and procedures designed to ensure that information required to be disclosed by a company in the reports that it files or submits under the Exchange Act is accumulated and communicated to the Company’s management, including its Principal Executive and Principal Financial Officer, as appropriate, to allow timely decisions regarding required disclosure. In designing and evaluating disclosure controls and procedures, management recognizes that any controls and procedures, no matter how well designed and operated, can provide only reasonable, not absolute assurance of achieving the desired objectives. Also, the design of a control system must reflect the fact that there are resource constraints, and the benefits of controls must be considered relative to their costs. Based on that assessment under those criteria, our management has determined that our internal control over financial reporting was effective as of September 30, 2025.

Changes in Internal Controls over Financial Reporting

During the period covered by this Quarterly Report on Form 10-Q, there were no changes in our internal control over financial reporting that materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

Our Risk Factor disclosures are set forth in Part I, Item 1A of our Annual Report on Form 10-K for the fiscal year ended June 30, 2025 filed with the Securities and Exchange Commission on September 17, 2025. As of the date of this Report, there have been no material changes with respect to the Risk Factor disclosures in our Annual Report on Form 10-K.