Highlights Include Company’s Progress in the Following Areas:

• Advances in the Research, Development, and Manufacturing Processes of the ALEXIS Gamma Delta T cell Platform

• Key Hires in Research & Development, Clinical Translational Medicine and Clinical Trial Preparation

• Completion of Approximately 90% of In-house cGMP Facility Expansion and Redesign

• Launch of DIAMOND® Artificial Intelligence (AI) 2.0 Platform for Identification and Selection of Immunotherapy Targets, which Now Includes Nearly Two Billion Data Points

Kiromic BioPharma, Inc. (NASDAQ: KRBP) (“Kiromic” or the “Company”), a clinical-stage fully integrated biotherapeutics company using its proprietary DIAMOND^® artificial intelligence (AI) and big data mining platform to discover and develop cell and gene therapies with a therapeutic focus on immuno-oncology, today announces financial results for the fourth quarter and fiscal year ended December 31, 2021.

“We are extremely encouraged by the progress the Company demonstrated in the fourth quarter. Our team’s unified efforts are strictly focused on achieving our goal of beginning the activation of the clinical trial for our first oncology cell therapy candidate by the end of the fourth quarter of 2022,” stated Pietro Bersani, Kiromic BioPharma’s Interim Chief Executive Officer. “We have been intensely preparing for this milestone, ensuring we have the right team, the right capabilities, and the right processes in place to achieve this objective. Our team has been executing critical advancements - occurring simultaneously - across our research and development, clinical trial preparation, facility expansion, and manufacturing operations, among other functions. We look forward to more opportunities to communicate with our shareholders as we demonstrate the Company’s overall progress.”

Fiscal Year Ended 2021 Financial Highlights:

• Cash Position: Cash and cash equivalents were $25,353,900 as of December 31, 2021, compared to $10,150,500 as of December 31, 2020. The difference is attributable to cash outflows of $20,321,500, and $1,810,800 for operating activities, and investing activities, respectively. There were cash inflows of $37,335,700 from financing activities.

• R&D Expenses: Our research and development expenses increased by $6,314,900, or 124.98%, to $11,367,800 for the year ended December 31, 2021 from $5,052,900 for the year ended December 31, 2020. The increase was attributable to increased headcount, manufacturing, and experimentation costs for the development of our ALEXIS clinical platform.

• G&A Expenses: Our general and administrative expenses decreased by $206,100, or 1.46%, to $13,937,900 for the year ended December 31, 2021 from $14,144,000 for the year ended December 31, 2020. This decrease was primarily due to reduced stock compensation expenses, offset by increases in professional services fees, personnel, and recruiting costs.

• Net Loss: Our net loss increased to $25,588,700 during the year ended December 31, 2021 compared to $19,200,200 during the year ended December 31, 2020.

Recent Business Highlights:

ALEXIS (Gamma Delta CAR-T cell Platform) Research & Development:

• Developed an innovative and highly efficient process that improves the manufacturing of our cell therapy candidates, making it more space-efficient and cost-effective. We believe that this will significantly reduce the costs of CAR-T cell manufacturing, providing a competitive market advantage.
• Successfully tested a prototype variant of the ALEXIS manufacturing process that leverages the potential of pooled donors’ cells. This is a necessary step to building a proprietary bank of precursor cells for the manufacturing of our ALEXIS product line. A donor cell bank is expected to ensure a high degree of homogeneity and consistency of our drug products, and at the same time to improve the resilience of our supply chain.
• Continued progress towards a scalable and retrovirus-free process for the delivery of recombinant genes into T cells. This is an important step towards the deployment of our proprietary non-viral cell engineering system.

Key Hires in Research & Development, Clinical Translational Medicine and Clinical Trial Preparation:

• The Company added new hires across the organization, specifically augmenting research & development, clinical translational medicine and clinical trial preparation capabilities. This represents a headcount total of nearly 60 employees, which is an increase from 19 as of December 31, 2020.

cGMP Manufacturing:

• We have completed approximately 90% of our in-house current Good Manufacturing Practices (cGMP) facility expansion and redesign.

DIAMOND®AI 2.0 Platform for Drug Discovery and Development is Completed:

• The Company developed and made operational a completely revised version of its proprietary platform for identification and vetting of immunotherapy targets. Diamond AI 2.0 was developed by Kiromic’s in-house bioinformatics team and includes:
  • Enhanced and updated existing models to provide more accurate predictions of therapy target efficacy;
  • A modular, containerized architecture to support rapid addition of new algorithms, scientific methods, and therapy designs;
  • Integrated data mining components to provide a seamless workflow from identification of cancer-specific surface protein regions through to vetted immunotherapy targets;
  • Proteomic validation of transcript targets;
  • An additional 300+ million data points were added to the DIAMOND database in Q4 2021, which included proteomic data covering and extending the range of cancer types; and
  • Approximately 600 million data points were added in 2021, representing a 50% data point increase from 2020.

About Kiromic BioPharma

Kiromic BioPharma, Inc. is a clinical-stage, fully integrated biotherapeutics company using its proprietary DIAMOND^® artificial intelligence (AI) platform to discover and develop cell and gene therapies with a therapeutic focus on immuno-oncology and other diseases. Kiromic is in the process of developing ALEXIS, a multi-indication allogeneic CAR-T cell therapy platform that exploits the natural potency of gamma delta T-cells to target solid cancers. From its heritage as a cancer vaccine development company, Kiromic is focused on discovering, developing, and commercializing novel immuno-oncology applications through its robust product pipeline. The pipeline development is leveraged through the Company’s proprietary target discovery engine called "DIAMOND." Kiromic's DIAMOND is where big data science meets target identification to dramatically compress the man-years and billions of drug development dollars required to develop a live drug. The Company maintains offices in Houston, Texas. To learn more, visit www.kiromic.com and connect with us on Twitter and LinkedIn.

Forward-Looking Statements

This press release contains forward-looking statements that involve substantial risks and uncertainties. We make such forward-looking statements pursuant to the safe harbor provisions of the U.S. Private Securities Litigation Reform Act, Section 21E of the Securities Exchange Act of 1934, as amended, and other federal securities laws. All statements other than statements of historical facts are forward-looking statements. These statements relate to future events or to our future financial performance and involve known and unknown risks, uncertainties and other factors that may cause our actual results, levels of activity, performance or achievements to be materially different from any future results, levels of activity, performance or achievements expressed or implied by these forward-looking statements. Forward-looking statements include, but are not limited to, statements about:

• our goals and strategies;
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• expected changes in our revenue, costs or expenditures;
• our expected timing of human clinical trials and other related milestones;
• difficulties or delays in the product development process, including the results of preclinical studies or clinical trials;
• difficulties or delays in the regulatory approval process;
• manufacturing, sales, marketing and distribution of any of our products that may be successfully developed and approved for commercialization;
• growth of and competition trends in our industry;
• our expectations regarding demand for, and market acceptance of, our products;
• protection for our patents and other intellectual property or trade secrets;
• our expectations regarding our relationships with investors, institutional funding partners, strategic partners and other parties we collaborate with;
• adverse side effects or inadequate therapeutic efficacy of our products that could slow or prevent product development or commercialization;
• dependence on third party suppliers;
• fluctuations in general economic and business conditions in the markets in which we operate; including those fluctuations caused by COVID-19;
• our ability to raise capital when needed;
• relevant government policies and regulations relating to our industry; and
• the outcome of any pending or threatened litigation.

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