• A tiny, early-stage version of a large pharmaceutical company like Merck or Bristol Myers Squibb, but focused exclusively on developing new cancer treatments.
• A clinical-stage biotech focused on discovering and developing breakthrough cancer drugs, similar to how Genentech operated in its pioneering early days.

• Annamycin: A next-generation anthracycline designed to overcome drug resistance in acute myeloid leukemia (AML) and soft tissue sarcoma (STS) lung metastases.
• WP1066: A STAT3 inhibitor being developed to suppress tumor growth and modulate the tumor microenvironment in various cancers, including glioblastoma.
• WP1122: A prodrug of 2-deoxy-D-glucose (2-DG) that targets the Warburg effect in cancer cells by inhibiting glucose transport and metabolism.
• WP761: An early-stage DNA damage response inhibitor intended to kill cancer cells by blocking their ability to repair DNA damage.

Moleculin Biotech (MBRX) is a clinical-stage pharmaceutical company focused on the discovery and development of new treatments for cancer. As a company in the clinical development phase, it does not currently have major commercial customers in the traditional sense because it has not yet commercialized any of its drug candidates.

The company's operations are funded primarily through equity financing, grants, and other non-product related sources necessary to support its research and clinical trials.

Should Moleculin Biotech successfully develop and obtain regulatory approval for its drug candidates, its future business model would primarily involve selling its pharmaceutical products to other entities within the healthcare system. These potential future "customers" would fall into the following categories:

• Hospitals and Medical Centers: These institutions would purchase and administer Moleculin's approved therapies to patients.
• Specialty Pharmacies and Pharmacy Chains: Outlets that dispense specialized drugs, often directly to patients or via healthcare providers.
• Pharmaceutical Distributors: Wholesale companies responsible for the distribution of drugs from manufacturers to healthcare providers and pharmacies.
• Other Pharmaceutical or Biotech Companies: Through potential licensing agreements or strategic partnerships for co-development, commercialization, or distribution in specific markets or regions.

Given the company's current clinical stage, no specific names of customer companies or their public symbols can be identified, as they do not yet have commercialized products being sold to customers.

• Albany Molecular Research, Inc.
• Lonza Group Ltd (LONN)
• Thermo Fisher Scientific (TMO)
• Cambridge Isotope Laboratories, Inc.

Walter V. Klemp, Chairman of the Board, President and Chief Executive Officer

Mr. Klemp is a co-founder of Moleculin Biotech. He served as CEO and then Executive Chairman on the Board of Directors of Soliton, Inc., a medical device company he co-founded, took public on Nasdaq in 2018, and which was sold to AbbVie in December 2021. He also served as President and Chief Executive Officer of Zeno Corporation from 2004 to April 2011, where he developed and marketed dermatology devices and drugs.

Jonathan P. Foster, Chief Financial Officer, Executive Vice President and Principal Accounting Officer

Mr. Foster joined Moleculin in August 2016, bringing over 30 years of financial experience. From July 2018 to December 2020, he served on the board of directors and chaired the Audit, Nominating & Governance, Compensation, and Strategic Alternative committees for Soliton, Inc., a Nasdaq-listed medical device company that was acquired by AbbVie.

Dr. Donald H. Picker, PhD, Chief Scientific Officer

Dr. Picker is a co-founder of Moleculin Biotech. He became the Chief Executive Officer of IntertechBio in 2007. From 2006 to 2007, he was the President of Tapestry Pharmaceuticals. From 1998 to 2003, Dr. Picker was CEO of Synergy Pharmaceuticals, which subsequently merged into Callisto Pharmaceuticals, where he served as Vice President of Research and Development until 2006. He led the development of carboplatin and cisplatin from concept to FDA approval. Dr. Picker currently serves as the Chief Science Officer of CNS Pharmaceuticals, Inc.

Waldemar Priebe, PhD, Founder, Founding Scientist, and Chair of Scientific Advisory Board

Dr. Priebe is a co-founder and founding scientist of Moleculin, and he serves as the head of its Scientific Advisory Board. He is a Professor of Medicinal Chemistry at The University of Texas MD Anderson Cancer Center. Dr. Priebe led the discovery of the molecules that form the basis for Moleculin's lead drug candidates. He has been a Founder or Founding Scientist at several successful biotechnology firms, including Aronex Pharmaceuticals, Houston Pharmaceuticals, Reata Pharmaceuticals, IntertechBio, and CNS Pharmaceuticals, and is a co-founder of six biotechnology companies in the US. He has been instrumental in advancing several drugs through the pipeline, with four currently in clinical development.

Robert Shepard, MD, FACP, Medical Advisor

Dr. Shepard currently serves as a Medical Advisor to Moleculin. Previously, he served as the company's Chief Medical Officer on a part-time basis from June 2016. From 2013 to 2014, Dr. Shepard was the Vice President of Scientific and Medical Affairs for Accelovance. He possesses extensive research credentials in hematology and oncology and is board certified in oncology, hematology, and internal medicine.

Moleculin Biotech (MBRX) has several main products and services in development, with addressable market sizes identified for some of its key candidates.

• Annamycin (Soft Tissue Sarcoma Lung Metastases): The global market opportunity for Annamycin in treating soft tissue sarcoma lung metastases is projected to reach approximately $2.6 billion by 2030. This addresses an estimated 13,500 new cases of soft tissue sarcoma annually.
• Annamycin (Relapsed or Refractory Acute Myeloid Leukemia - AML): null
• WP1066 (STAT3 Inhibitor for various cancers including brain tumors and pancreatic cancer): null
• WP1122 (Antimetabolite for pathogenic viruses and certain cancer indications): null

Moleculin Biotech (MBRX) anticipates future revenue growth over the next 2-3 years primarily through the advancement and potential commercialization of its lead drug candidate, Annamycin, across multiple indications, alongside the progression of other pipeline assets.

1. Advancement and Potential Approval of Annamycin for Relapsed or Refractory Acute Myeloid Leukemia (R/R AML): The most significant driver of future revenue growth for Moleculin Biotech is the ongoing pivotal Phase 3 "MIRACLE" trial for Annamycin, in combination with cytarabine (AnnAraC), for the treatment of relapsed or refractory acute myeloid leukemia. The company expects early unblinding of safety and efficacy data from the initial 45 subjects in the second half of 2025, with further interim efficacy and safety data from 75-90 subjects (Part A completion) anticipated in the first half of 2026. Annamycin holds Fast Track Status and Orphan Drug Designation from both the FDA and EMA for R/R AML, which could facilitate an accelerated approval pathway, potentially beginning as early as 2027. This indication represents a high unmet medical need where Annamycin's Phase 2 data has shown promising response rates.
2. Development of Annamycin for Soft Tissue Sarcoma (STS) Lung Metastases: Annamycin is also progressing in clinical development for the treatment of soft tissue sarcoma lung metastases. Positive topline results from the Phase 1B/2 trial for this indication, demonstrating a 13.5-month median overall survival, were reported in the second quarter of 2025. Continued positive clinical data and progression towards later-stage trials or approval in this indication could provide an additional revenue stream.
3. Expansion of Annamycin into New Cancer Indications ("Pipeline in a Product"): Moleculin Biotech views Annamycin as having "pipeline in a product" potential, suggesting its applicability to other cancers. This includes recently announced preclinical data showing significant activity of Annamycin in Venetoclax-resistant AML models. Furthermore, the company announced an investigator-initiated study of Annamycin for treating pancreatic cancer in October 2025, and has received positive FDA feedback on a pediatric AML study plan, along with encouraging preclinical data for Annamycin against liver cancers. Successful expansion into these additional indications would broaden the market opportunity for Annamycin.
4. Advancement of Other Clinical Pipeline Candidates: Beyond Annamycin, Moleculin Biotech has other drug candidates in its pipeline that could contribute to future revenue. For example, the WP1096 compound was selected for NIAID-funded animal studies in September 2023. Additionally, WP1122, a brain cancer therapy, received FDA orphan drug status in September 2023 and showed safety in preliminary Phase 1a data as a potential COVID-19 treatment in July 2023. Continued progress and potential commercialization of these or other pipeline assets represent longer-term revenue drivers.

Share Issuance

• Moleculin Biotech's shares outstanding significantly increased, with a 1:15 reverse stock split occurring in March 2024, following an earlier split in February 2021.
• In August 2024, the company closed a public offering that generated $5.5 million upfront from the sale of common stock and warrants, with the potential for an additional $11.0 million upon the exercise of milestone-linked warrants.
• A June 2025 offering resulted in a $20.55 million warrant liability and a $10.4 million loss on issuance, indicating substantial share and/or warrant issuance.

Inbound Investments

• Moleculin Biotech raised $9.3 million in February 2025.
• The company secured $5.5 million upfront from a public offering in August 2024, with additional potential proceeds of $11.0 million from warrant exercises.
• A June 2025 offering led to a $20.55 million warrant liability and a $10.4 million loss on issuance, signifying a significant financing event.

Capital Expenditures

• Moleculin Biotech did not report significant capital expenditures as a separate line item in available financial summaries, with capital expenditures often noted as "n/a".
• The company's primary focus for capital deployment is research and development (R&D) activities, which are reported as operating expenses rather than capital expenditures.
• R&D expenses were $17.7 million for the fiscal year 2024, a decrease from $19.5 million in 2023.