Biggest changeSales of therapeutics will depend substantially, both domestically and internationally, on the extent to which the costs of such therapeutics are paid by health maintenance, managed care, pharmacy benefit and similar healthcare management organizations, or reimbursed by government health administration authorities, private health coverage insurers and other third-party payors, including government health programs in the United States, such as Medicare and Medicaid.
Biggest changeIn addition we and our partners are subject to additional healthcare regulation and enforcement under laws related to, among other things, state, federal and foreign anti-kickback, fraud and abuse, false claims, and transparency laws and regulations related to drug pricing and payments and other transfers of value made to physicians and other healthcare providers. 19 Table of Contents Sales of therapeutics will depend substantially, both domestically and internationally, on the extent to which the costs of such therapeutics are paid by health maintenance, managed care, pharmacy benefit and similar healthcare management organizations, or reimbursed by government health administration authorities, private health coverage insurers and other third-party payors, including government health programs in the United States, such as Medicare and Medicaid.
As an example, in 2023 we launched our OmniDeep and Omni dAb technologies responding to our understanding of pharmaceutical industry needs. And in 2024 we launched OmniHub, a unified interface providing partners secure access to datasets to visualize their discovery campaign data with a variety of custom tools.
As an example, in 2023 we launched our OmniDeep and Omni dAb technologies responding to our understanding of pharmaceutical industry needs. In 2024 we launched OmniHub, a unified interface providing partners secure access to datasets to visualize their discovery campaign data with a variety of custom tools.
Additionally, we have an established core competency focused on ion channels and transporters that further differentiates OmniAb’s technology and creates opportunities in many important and emerging target classes. OmniAb technologies can be leveraged for the discovery of a variety of next-generation antibody-based therapeutic modalities, including bi- and multi-specific biologics, antibody-drug conjugates, CAR-T therapies, targeted radiotherapeutics and many others.
Additionally, we have an established core competency focused on ion channels and transporters that further differentiates OmniAb’s technology and creates opportunities in many important and emerging target classes. OmniAb technologies can be leveraged for the discovery of a variety of next-generation antibody-based therapeutic modalities, including bi- and multi-specific biologics, antibody-drug conjugates, CAR-T therapies, targeted radiotherapeutics, peptides and many others.
OmniClic expresses the heavy chain and VK3-15 light chains, with a modified light chain transgene to minimize diversification. 12 OmnidAb (sdAb chicken) Omni dAb was launched in 2023 and is a next-generation engineered chicken platform with an optimized human framework for discovering novel high-affinity single-domain antibodies ("sdAbs") that have favorable developability profiles without requiring additional engineering steps.
OmniClic expresses the heavy chain and VK3-15 light chains, with a modified light chain transgene to minimize diversification. OmnidAb (sdAb chicken) Omni dAb was launched in 2023 and is a next-generation engineered chicken platform with an optimized human framework for discovering novel high-affinity single-domain antibodies ("sdAbs") that have favorable developability profiles without requiring additional engineering steps.
These technologies can be seamlessly integrated into our partners’ internal or external workflows, allowing us to offer both comprehensive end-to-end discovery solutions and highly customizable, program-specific offerings. This flexibility enables us to address key industry challenges with optimized discovery solutions. 2 As part of our efforts to enhance the partner experience, we launched OmniHub ™ in December 2024.
These technologies can be seamlessly integrated into our partners’ internal or external workflows, allowing us to offer both comprehensive end-to-end discovery solutions and highly customizable, program-specific offerings. This flexibility enables us to address key industry challenges with optimized discovery solutions. As part of our efforts to enhance the partner experience, we launched OmniHub ™ in December 2024.
Although our license agreements with pharmaceutical and biotechnology partners typically include technology access fees, milestone payments and royalties, each agreement is negotiated separately and as a result, the financial terms and contractual provisions vary from agreement to agreement. By providing a full suite of antibody discovery technologies with streamlined economics, we believe we offer an attractive option to industry stakeholders.
Although our license agreements with pharmaceutical and biotechnology partners typically include technology access fees, milestone payments and royalties, each agreement is negotiated separately and as a result, the financial terms and contractual provisions vary from agreement to agreement. By providing a full suite of antibody discovery technologies with streamlined economics, we believe we offer an attractive option to the industry.
Our trademarks include our company name OMNIAB and product-specific names such as OMNICHICKEN, OMNICLIC, OMNIFLIC, OMNIDAB, OMNIMOUSE, OMNIRAT, and OMNITAUR, platform technology names such as ICAGEN, OMNIDEEP, PICOBODY, PICOBODIES TM, XPLORATION and XRPRO®, as well as slogans and marketing taglines such as “ABSOLUTELY OMNIAB®,” “BIOLOGICAL INTELLIGENCE,” and “NATURALLY OPTIMIZED HUMAN ANTIBODIES®.” Government Regulation Regulation of Drugs and Biological Products and Coverage and Reimbursement Government authorities in the United States, at the federal, state and local level, and in the European Union (“EU”) and other countries and jurisdictions, extensively regulate, the research, development, testing, manufacturing, quality control, safety, effectiveness, approval, labeling, packaging, storage, record-keeping, promotion, advertising, distribution, post-approval monitoring and reporting, marketing and export and import of drugs and biological products such as those that our partners develop.
Our trademarks include our company name OMNIAB and product-specific names such as OMNICHICKEN, OMNICLIC, OMNIFLIC, OMNIDAB, OMNIMOUSE, OMNIRAT, OMNITAUR, and OMNIULTRA, platform technology names such as ICAGEN, OMNIDEEP, PICOBODY, PICOBODIES, XPLORATION and XRPRO®, as well as slogans and marketing taglines such as “ABSOLUTELY OMNIAB®,” “BIOLOGICAL INTELLIGENCE,” and “NATURALLY OPTIMIZED HUMAN ANTIBODIES®.” Government Regulation Regulation of Drugs and Biological Products and Coverage and Reimbursement Government authorities in the United States, at the federal, state and local level, and in the European Union (“EU”) and other countries and jurisdictions, extensively regulate, the research, development, testing, manufacturing, quality control, safety, effectiveness, approval, labeling, packaging, storage, record-keeping, promotion, advertising, distribution, post-approval monitoring and reporting, marketing and export and import of drugs and biological products such as those that our partners develop.
We believe the long-term value of our business will be driven by royalties given that such payments are based on global sales of potential future partner programs, which generally provide for larger and recurring payments as compared to technology access, research and milestone payments.
We believe the long-term value of our business will be driven by royalties given that such payments are based on global sales of potential future partner programs, which generally provide for larger and recurring payments as compared to technology access, research fees and milestone payments.
These licensed patents have an expected expiry date in 2033, without accounting for potentially available patent term adjustments and extensions or disclaimers. OmniAb has an exclusive license from the Applied Biomedical Science Institute to a family of patent applications relating to the Picobody TM technology.
These licensed patents have an expected expiry date in 2033, without accounting for potentially available patent term adjustments and extensions or disclaimers. OmniAb has an exclusive license from the Applied Biomedical Science Institute to a family of patent applications relating to the Picobody® technology.
FDA approval of a New Drug Application (“NDA”) or Biologics License Application (“BLA”) or supplement, or European Commission or national 18 competent authority of an EU member state granting of a marketing authorization (“MA”) in the EU, is required before any new drug or biologic can be marketed.
FDA approval of a New Drug Application (“NDA”) or Biologics License Application (“BLA”) or supplement, or European Commission or national competent authority of an EU member state granting of a marketing authorization (“MA”) in the EU, is required before any new drug or biologic can be marketed.
This iterative process preferentially selects antibodies that are naturally optimized to be most effective in neutralizing the specific antigen. 7 This process, referred to as in vivo affinity maturation, has evolved over 500 million years to naturally select antibodies that are optimized for their intended function.
This iterative process preferentially selects antibodies that are naturally optimized to be most effective in neutralizing the specific antigen. This process, referred to as in vivo affinity maturation, has evolved over 500 million years to naturally select antibodies that are optimized for their intended function.
Our partners can select a biological target to treat a disease and define the antibody properties needed for therapeutic development or use certain of our technologies directly in their own laboratories. 5 Our license agreements with pharmaceutical and biotechnology partners generally include: (i) upfront or, in some instances, annual payments for technology access; (ii) payments for performance of research services; (iii) downstream payments in the form of preclinical, intellectual property, clinical, regulatory, and commercial milestones; and (iv) royalties on net sales of our partners’ products, if any.
Our partners can select a biological target to treat a disease and define the antibody properties needed for therapeutic development or use certain of our technologies directly in their own laboratories. 5 Table of Contents Our license agreements with pharmaceutical and biotechnology partners generally include: (i) upfront or, in some instances, annual payments for technology access; (ii) payments for performance of research services; (iii) downstream payments in the form of preclinical, intellectual property, clinical, regulatory, and commercial milestones; and (iv) royalties on net sales of our partners’ products, if any.
All references herein to the “Sponsor” refer to Avista Acquisition LP II, the sponsor of APAC, and to the “Board” refer to the board of directors of OmniAb. 20 Available Information Financial and other information about us is available on our website at www.omniab.com.
All references herein to the “Sponsor” refer to Avista Acquisition LP II, the sponsor of APAC, and to the “Board” refer to the board of directors of OmniAb. Available Information Financial and other information about us is available on our website at www.omniab.com.
Our four-species platform harnesses these complimentary mechanisms for generating antibody diversity, while maintaining the naturally optimized genetic sequences needed to produce high-quality, therapeutic antibodies that fit the needs of almost any discovery campaign. Market Opportunity Antibodies are among the fastest growing class of drugs and are used across many therapeutic areas, including oncology, inflammation, metabolic disease and neurodegeneration.
Our multi-species platform harnesses these complimentary mechanisms for generating antibody diversity, while maintaining the naturally optimized genetic sequences needed to produce high-quality, therapeutic antibodies that fit the needs of almost any discovery campaign. Market Opportunity Antibodies are among the fastest growing class of drugs and are used across many therapeutic areas, including oncology, inflammation, metabolic disease and neurodegeneration.
We believe our revenue will be materially driven by milestones in the shorter term, and by royalties in the longer term, from our partnered programs.
We believe our revenue will be materially driven by milestones and services in the shorter term, and by royalties in the longer term, from our partnered programs.
Business Acquisition Date Technologies Acquired OMT January 2016 OmniRat; OmniMouse; OmniFlic Crystal October 2017 OmniChicken; GEM screening Ab Initio July 2019 Antigen design Icagen April 2020 Ion channel technology xCella September 2020 xPloration screening Taurus September 2020 OmniTaur Competition The market for technologies that enable the discovery and development of therapeutic antibodies, such as ours, is global, characterized by intense competition and subject to significant intellectual property barriers.
Business Acquisition Date Technologies Acquired OMT January 2016 OmniRat; OmniMouse; OmniFlic Crystal October 2017 OmniChicken; GEM screening Ab Initio July 2019 Antigen design Icagen April 2020 Ion channel technology xCella September 2020 xPloration screening Taurus September 2020 OmniTaur 15 Table of Contents Competition The market for technologies that enable the discovery and development of therapeutic antibodies, such as ours, is global, characterized by intense competition and subject to significant intellectual property barriers.
We believe the xPloration platform provides industry-leading screening and cell recovery compared to other spatial separation techniques and enables the discovery of rare cells that would be missed with other systems that only evaluate a small percentage of a repertoire. 4 • Identify the Right Antibody.
We believe the xPloration platform provides industry-leading screening and cell recovery compared to other spatial separation techniques and enables the discovery of rare cells that would be missed with other systems that only evaluate a small percentage of a repertoire. 4 Table of Contents • Identify the Right Antibody.
We believe our capabilities in the ion channel area can be leveraged for both small molecule and antibody approaches to therapeutic development. Our Partnership Business Model We partner with pharmaceutical and biotechnology companies and leading academic institutions that vary in size, clinical stage, geography and therapeutic focus.
We believe our capabilities in the ion channel area can be leveraged for both small molecule and antibody approaches to therapeutic development. Our Partnership Business Model We partner with pharmaceutical and biotechnology companies and leading academic institutions that vary in size, geography and therapeutic focus.
Due to the significant interest and growth in antibody therapeutics more broadly, we expect the intensity of this competition to increase. We seek to provide our partners with the most advanced technologies for antibody drug discovery, including antigen design, transgenic animal platforms, single-cell screening technologies and antibody engineering technologies.
Due to the significant interest and growth in antibody therapeutics more broadly, we expect the intensity of this competition to increase. We seek to provide our partners with the most advanced technologies for antibody drug discovery, including transgenic animal platforms, single-cell screening technologies and antibody engineering technologies.
These patents include: • four U.S. patents directed to rodent germ cells, transgenic rodents, methods of generating transgenic rodents, and antibodies produced from transgenic rodents, and foreign counterparts including in Europe, Japan, China, and Canada, all having an expiration date in 2028 without accounting for potentially available patent term adjustments and extensions or disclaimers; • seven U.S. patents directed to transgenic animals including chickens, B cells isolated from transgenic chickens, and methods of producing antibodies, all having an expiration date in 2030 without accounting for potentially available patent term adjustments and extensions or disclaimers; • one U.S. patent directed to avian gonocytes and their method of manufacture, having an expiration date in 2031 without accounting for potentially available patent term adjustments and extensions or disclaimers; • four U.S. patents directed to transgenic chickens and chicken germ cells, methods of modifying chicken germ cells, and foreign counterparts including in Europe and Canada, all having an expiration date in 2032 without accounting for potentially available patent term adjustments and extensions or disclaimers; • four U.S. patents directed to transgenic chickens, methods of producing antibodies, including heavy chain antibodies, and isolated antibody-producing cells, all having an expiration date in 2032 without accounting for potentially available patent term adjustments and extensions or disclaimers; • two U.S. patents directed to transgenic rodents, methods of producing antibodies, and chimeric polynucleotides, and foreign counterparts including in Europe, China, and Japan, all having an expiration date in 2033 without accounting for potentially available patent term adjustments and extensions or disclaimers; • one U.S. patent directed to transgenic chickens and methods of producing antibodies having an expiration date in 2036 without accounting for potentially available patent term adjustments and extensions or disclaimers; • one U.S. patent directed to transgenic rodents, methods of producing antibodies, and chimeric polynucleotides, and a foreign counterpart in China, both having an expiration date in 2038 without accounting for potentially available patent term adjustments and extensions or disclaimers; 16 • one U.S. patent directed to transgenic chickens, and a counterpart in Japan, both having an expiration date in 2039 without accounting for potentially available patent term adjustment and extensions or disclaimers; and • one U.S. patent directed to transgenic chickens having an expiration date in 2039 without accounting for potentially available patent term adjustment and extensions or disclaimers.
These patents include: • four U.S. patents directed to rodent germ cells, transgenic rodents, methods of generating transgenic rodents, and antibodies produced from transgenic rodents, and foreign counterparts including in Europe, Japan, China, and Canada, all having an expiration date in 2028 without accounting for potentially available patent term adjustments and extensions or disclaimers; • six U.S. patents directed to transgenic animals including chickens, B cells isolated from transgenic chickens, and methods of producing antibodies, all having an expiration date in 2030 without accounting for potentially available patent term adjustments and extensions or disclaimers; • one U.S. patent directed to avian gonocytes and their method of manufacture, having an expiration date in 2031 without accounting for potentially available patent term adjustments and extensions or disclaimers; • four U.S. patents directed to transgenic chickens and chicken germ cells, methods of modifying chicken germ cells, and foreign counterparts including in Europe and Canada, all having an expiration date in 2032 without accounting for potentially available patent term adjustments and extensions or disclaimers; • four U.S. patents directed to transgenic chickens, methods of producing antibodies, including heavy chain antibodies, and isolated antibody-producing cells, all having an expiration date in 2032 without accounting for potentially available patent term adjustments and extensions or disclaimers; • two U.S. patents directed to transgenic rodents, methods of producing antibodies, and chimeric polynucleotides, and foreign counterparts including in Europe, China, and Japan, all having an expiration date in 2033 without accounting for potentially available patent term adjustments and extensions or disclaimers; • one U.S. patent directed to transgenic chickens and methods of producing antibodies having an expiration date in 2036 without accounting for potentially available patent term adjustments and extensions or disclaimers; • one U.S. patent directed to transgenic rodents, methods of producing antibodies, and chimeric polynucleotides, and a foreign counterpart in China, both having an expiration date in 2038 without accounting for potentially available patent term adjustments and extensions or disclaimers; • three U.S. patents directed to transgenic chickens, and foreign counterparts in Europe, Japan, and Canada having an expiration date in 2039 without accounting for potentially available patent term adjustment and extensions or disclaimers; and • two U.S. patent directed to transgenic chickens having an expiration date in 2039 without accounting for potentially available patent term adjustment and extensions or disclaimers; and • one U.S. patent directed to transgenic chickens, B cells isolated from transgenic chickens, and methods of producing antibodies and a foreign counterpart in Japan both having an expiration date in 2039 without accounting for potentially available patent term adjustment and extensions or disclaimers.
At the heart of the OmniAb platform is something we call Biological Intelligence TM , which powers the immune systems of our proprietary, engineered transgenic animals to create optimized antibody candidates for human therapeutics. We believe the OmniAb animals comprise the most diverse host systems available in the industry.
At the heart of the OmniAb platform is what we call Biological Intelligence TM , which powers the immune systems of our proprietary, engineered transgenic animals to create optimized antibody candidates for human therapeutics. We believe the OmniAb animals comprise the most diverse host systems available in the industry.
Our ion channel platform has issued patents and pending patent applications directed to x-ray fluorescence-based detection of binding events and transport across barriers and related inventions, including 24 issued patents in the United States, six issued patents in Europe, seven issued patents in Japan, and three issued patents in China.
Our ion channel platform has issued patents and pending patent applications directed to x-ray fluorescence-based detection of binding events and transport across barriers and related inventions, including 24 issued patents in the United States, seven issued patents in Europe, nine issued patents in Japan, and three issued patents in China.
For partners who prefer to work with mice, OmniMouse provides a rapid solution to deliver fully human antibodies. As of December 31, 2024, there is one program based on an OmniMouse-derived antibody in clinical development by our partners.
For partners who prefer to work with mice, OmniMouse provides a rapid solution to deliver fully human antibodies. As of December 31, 2025, there is one program based on an OmniMouse-derived antibody in clinical development by our partners.
The patents and applications in our ion channel portfolio are expected to expire between 2027 and 2044, without accounting for potentially available patent term adjustments and extensions or disclaimers. Trademarks We also use trademark rights to protect our brand.
The patents and applications in our ion channel portfolio are expected to expire between 2027 and 2045, without accounting for potentially available patent term adjustments and extensions or disclaimers. Trademarks We also use trademark rights to protect our brand.
Our OmniAb transgenic animals take advantage of the immune system’s natural ability to produce high-quality antibodies and have been genetically modified to generate antibodies with human sequences. The evolutionary divergence of different species has resulted in some animals developing unique mechanisms that increase their immune systems’ effectiveness against certain antigens.
Our OmniAb transgenic animals take advantage of the immune system’s natural ability to produce high-quality antibodies and have been genetically modified to generate antibodies with human sequences. 7 Table of Contents The evolutionary divergence of different species has resulted in some animals developing unique mechanisms that increase their immune systems’ effectiveness against certain antigens.
CDR-H3 is the region of the antibody that makes primary contact with the target and ultralong CDR-H3 antibodies have been shown to bind to targets with deep or cryptic epitopes. We believe these antibodies could be leveraged for a variety of targets with epitopes which may be difficult to reach with conventional antibodies, including ion channels, transporters, and viral proteins.
CDRH3 is the region of the antibody that makes primary contact with the target and ultralong CDRH3 antibodies have been shown to bind to targets with deep or cryptic epitopes. We believe these antibodies could be leveraged for a variety of targets with epitopes which may be difficult to reach with conventional antibodies, including ion channels, transporters, and viral proteins.
Our computational antigen design technology has been validated in successfully generating, stabilizing, and purifying natively-folded antigen for these targets and our four-species transgenic animal platform is validated in successfully generating antibodies for poorly immunogenic, high homology, and cryptic targets. 14 In addition to the drug design challenges, it is difficult to develop effective functional assays to test potential therapeutics.
Our computational antigen design technology has been validated in successfully generating, stabilizing, and purifying natively-folded antigen for these targets and our multi-species transgenic animal platform is validated in successfully generating antibodies for poorly immunogenic, high homology, and cryptic targets. In addition to the drug design challenges, it is difficult to develop effective functional assays to test potential therapeutics.
You may obtain copies of these documents by visiting the SEC’s website at www.sec.gov. In addition, we may use X, formerly known as Twitter (@OmniAbTech), and our investor relations website as a means of disclosing material non-public information and for complying with our disclosure obligations under Regulation FD.
You may obtain copies of these documents by visiting the SEC’s website at www.sec.gov. In addition, we may use X (@OmniAbTech), and our investor relations website as a means of disclosing material non-public information and for complying with our disclosure obligations under Regulation FD.
The portfolio also includes five pending U.S. patent applications, four pending European patent applications, and pending applications in China and Japan. These patents and applications are directed to methods and apparatus. Additional pending applications are directed to biological targets.
The portfolio also includes four pending U.S. patent applications, three pending European patent applications, and pending applications in China and Japan. These patents and applications are directed to methods and apparatus, and additional pending applications are directed to biological targets.
We also have an exclusive license from The Scripps Research Institute to technology related to ultralong CDR-H3s. This licensed portfolio includes three issued patents in the U.S., one issued patent in Europe, and one issued patent in Japan, as well as three pending applications in Japan and one in China.
We also have an exclusive license from The Scripps Research Institute to technology related to ultralong CDRH3s. This licensed portfolio includes three issued patents in the U.S., one issued patent in Europe, and one issued patent in Japan, as well as three pending applications in Japan and one in China.
As of December 31, 2024, there are two programs based on an OmniFlic-derived antibody in clinical development by our partners. OmniClic (Bispecific chicken platform) OmniClic was launched in 2019 and is a common light-chain transgenic chicken developed to facilitate the generation of bispecific antibodies. OmniClic was engineered to focus sequence diversity on the CDRs of the VH domain.
As of December 31, 2025, there are three programs based on an OmniFlic-derived antibody in clinical development by our partners. OmniClic (Bispecific chicken platform) OmniClic was launched in 2019 and is a common light-chain transgenic chicken developed to facilitate the generation of bispecific antibodies. OmniClic was engineered to focus sequence diversity on the CDRs of the VH domain.
By providing leading-edge antibody discovery solutions, we aim to enhance the probability of success, reduce costs, and accelerate development timelines for our partners. Our cutting-edge technologies are modular, creating highly scalable solutions for antibody discovery.
By providing leading-edge antibody discovery solutions, we aim to enhance the probability of success, reduce costs, and accelerate development timelines for our partners. 2 Table of Contents Our cutting-edge technologies are modular, creating highly scalable solutions for antibody discovery.
These website addresses and the information accessible through our X social media account are not intended to function as hyperlinks, and the information contained in our website and in the SEC’s website is not intended to be a part of this filing.
These website addresses and the information accessible through our X social media account are not intended to function as hyperlinks, and the information contained in our website and in the SEC’s website is not intended to be a part of this filing. 21 Table of Contents
While there are several commercially available options when considering transgenic mice, OmniAb is the only four-species platform, which include transgenic mouse, rat and chicken technologies, in addition to a cow antibody humanization technology. Each animal has unique and complementary characteristics that address key challenges in antibody discovery. • Screen Antibody Candidates.
While there are several commercially available options when considering transgenic mice, OmniAb is the only platform that includes transgenic mouse, rat and chicken technologies, in addition to a cow antibody humanization technology. Each animal has unique and complementary characteristics that address key challenges in antibody discovery. • Screen Antibody Candidates.
The exclusive license is granted pursuant to a Collaborative Research Agreement in order to further the joint research activities contemplated therein related to the Picobody technology. Picobodies are very small immunoglobulin-based binding moieties that can be derived from a subclass of cow antibodies containing ultralong CDR-H3 domains.
The exclusive license is granted pursuant to a Collaborative Research Agreement in order to further the joint research activities contemplated therein related to the Picobody technology. Picobodies® are very small immunoglobulin-based binding moieties that can be derived from cow antibodies containing ultralong CDRH3 domains.
Automated imaging and AI algorithms, empowered by the LandingLens TM platform developed by Landing AI, identify B cells with desired binding profiles, and a rapid laser-based recovery process efficiently retrieves B cells for sequencing and expression cloning. xPloration enhances antibody discovery for partner campaigns using the entire suite of OmniAb transgenic animals and is designed to optimize discovery efficiency through new functional screening assays and large-scale repertoire mining.
Automated imaging and AI algorithms identify B cells with desired binding profiles, and a rapid laser-based recovery process efficiently retrieves B cells for sequencing and expression cloning. xPloration enhances antibody discovery for partner campaigns using the entire suite of OmniAb transgenic animals and is designed to optimize discovery efficiency through new functional screening assays and large-scale repertoire mining.
As of December 31, 2024, there are three approved products based on an OmniRat-derived antibody and 24 additional programs based on an OmniRat-derived antibody in clinical development by our partners. 10 OmniMouse OmniMouse was launched in 2014 and was developed using the same transgenes as OmniRat to deliver fully human antibodies utilizing standard mouse-based protocols.
As of December 31, 2025, there are three approved products based on an OmniRat-derived antibody and 21 additional programs based on an OmniRat-derived antibody in clinical development by our partners. 10 Table of Contents OmniMouse OmniMouse was launched in 2014 and was developed using the same transgenes as OmniRat to deliver fully human antibodies utilizing standard mouse-based protocols.
The patents and patent applications referenced below are in each case, as of February 28, 2025. Technology Platform Transgenic Animals Our transgenic animal therapeutic antibody platforms, including OmniRat, OmniMouse and OmniChicken, produce naturally optimized antibodies with human sequences in animals.
The patents and patent applications referenced below are in each case, as of February 28, 2026. Technology Platform Transgenic Animals 16 Table of Contents Our transgenic animal therapeutic antibody platforms, including OmniRat, OmniMouse and OmniChicken, produce naturally optimized antibodies with human sequences in animals.
We pursue this mission by developing and licensing cutting edge discovery and screening technology and by being the partner of choice for pharmaceutical and biotechnology companies and academic institutions. Our strategy to accomplish this includes the following: 9 • Enable discovery of high-quality antibody candidates through our platform.
We pursue this mission by developing and licensing cutting edge discovery and screening technology and by being the partner of choice for pharmaceutical and biotechnology companies and academic institutions. Our strategy to accomplish this includes the following: 9 Table of Contents • Enable discovery of high-quality antibody and other target-binding protein candidates through our platform.
Key Business Metrics The below graph shows the growth in active partners, active programs and clinical programs and the number of programs that have entered clinical trials. As of December 31, 2024, there were 363 active programs.
Key Business Metrics The below graph shows the growth in active partners, active programs and clinical programs and the number of programs that have entered clinical trials. As of December 31, 2025, there were 407 active programs.
We own patents directed to OmniAb animals and related inventions, including 26 issued patents in the United States, six issued patents in Europe, seven issued patents in Japan, five issued patents in China, and counterpart patents granted in other countries.
We own patents directed to OmniAb animals and related inventions, including 29 issued patents in the United States, eight issued patents in Europe, seven issued patents in Japan, five issued patents in China, and counterpart patents granted in other countries.
The solutions and applications offered by our competitors vary in size, breadth and scope, and given the broad promise of antibody therapeutics, we face competition from many different sources. These include companies developing antigen design, transgenic animal platforms, single-cell screening technologies and antibody engineering technologies.
The solutions and applications offered by our competitors vary in size, breadth and scope, and given the broad promise of antibody therapeutics, we face competition from many different sources. These include companies with transgenic animal platforms and other antibody discovery solutions, single-cell screening technologies and antibody engineering technologies.
We have 91 active partners as of December 31, 2024, consisting of pharmaceutical, biotechnology and academic organizations, varying in size, clinical stage, geography and therapeutic focus. We intend to continue to identify and capture new opportunities with existing partners by building upon our trusted relationships.
We have 107 active partners as of December 31, 2025, consisting of pharmaceutical, biotechnology and academic organizations, varying in size, geography and therapeutic focus. We intend to continue to identify and capture new opportunities with existing partners by building upon our trusted relationships.
These licensed applications have an expected expiry date in 2042, without accounting for potentially available patent term adjustments and extensions or disclaimers. 17 B cell screening Our xPloration screening technology, obtained through acquisition of xCella Biosciences in 2020, includes a microcapillary platform for high-throughput, automated screening of single B cells for specificity and bioactivity, which expands our existing single B cell assay capabilities in the OmniAb technology platform.
These licensed applications have an expected expiry date in 2042, without accounting for potentially available patent term adjustments and extensions or disclaimers. B cell screening Our xPloration screening technology, obtained through acquisition of xCella Biosciences in 2020, includes a microcapillary platform for high-throughput, automated screening of single B cells for specificity and bioactivity.
The patent portfolio includes six issued patents in the U.S., two granted European patents, one issued patent in China, and six issued patents in Japan, as well as five pending U.S. patent applications, four pending European patent applications, two pending Japanese patent applications, three pending Chinese patent applications, and counterpart patent applications issued and pending in other countries.
The patent portfolio includes seven issued patents in the U.S., three granted European patents, one issued patent in China, and seven issued patents in Japan, as well as five pending U.S. patent applications, three pending European patent applications, three pending Chinese patent applications, and counterpart patent applications issued and pending in other countries.
We offer the industry’s only four-species platform, designed to address a wide range of biological challenges encountered by our partners in their antibody discovery efforts.
We offer the industry a multi-species platform, designed to address a wide range of biological challenges encountered by our partners in their antibody discovery efforts.
Examples include: • in discovery using genetically-engineered rodents, we face technical competition from companies that provide access to similar technologies, such as AbCellera Biologics Inc., Ablexis LLC, Alloy Therapeutics, Inc., Biocytogen Pharmaceuticals (Beijing) Co., Ltd., Nona Biosciences, Leveragen, Inc., Regeneron Pharmaceuticals, Inc. and Twist Bioscience Corporation; • in the field of single-cell screening, we face technical competition from companies that provide access to similar technologies, such as AbCellera Biologics Inc., Bruker Corporation., HiFiBio Inc., and Sphere Fluidics Ltd.; and • in ion channel drug discovery, we face technical competition from companies that provide similar technologies, or biological expertise, such as Charles River Labs Inc., Evotec SE, Metrion Biosciences Ltd., and WuXi AppTec. 15 We also face direct business competition from companies that provide antibody discovery services using technologies such as hybridoma and display.
Examples include: • in discovery using genetically-engineered rodents, we face technical competition from companies that provide access to similar technologies, such as AbCellera Biologics Inc., Ablexis LLC, Alloy Therapeutics, Inc., Biocytogen Pharmaceuticals (Beijing) Co., Ltd., Nona Biosciences, Leveragen, Inc., Regeneron Pharmaceuticals, Inc. and Twist Bioscience Corporation; • in the field of single-cell screening, we face technical competition from companies that provide access to similar technologies, such as AbCellera Biologics Inc., Bruker Corporation, DPBIO, Inc., Sartorius AG, and Fluidic Sciences Ltd; and • in ion channel drug discovery, we face technical competition from companies that provide similar technologies, or biological expertise, such as Charles River Labs Inc., Evotec SE, Metrion Biosciences Ltd., and WuXi AppTec.
II (“APAC”), an exempted company in the Cayman Islands, on February 5, 2021. On October 31, 2022, APAC deregistered in the Cayman Islands and was domesticated as a corporation under the State of Delaware, and in connection with which APAC changed its name to “OmniAb, Inc.”.
On October 31, 2022, APAC deregistered in the Cayman Islands and was domesticated as a corporation under the State of Delaware, and in connection with which APAC changed its name to “OmniAb, Inc.”.
As of December 31, 2024, we had 91 active partners with 363 active programs using the OmniAb technology platform, including 28 OmniAb-derived antibodies in clinical development by our partners, one under regulatory review, and three approved products developed and commercialized by our partners.
As of December 31, 2025, we had 107 active partners with 407 active programs using the OmniAb technology platform, including 27 OmniAb-derived antibodies in clinical development by our partners, two under regulatory review, and three approved products developed and commercialized by our partners.
We combine our transgenic animals with our proprietary antigen technology and immunization techniques to generate high-quality antibodies for even the most difficult biological challenges, including but not limited to difficult and complex targets such as ion channels, G protein-coupled receptors (“GPCRs”), transporters, and other transmembrane proteins.
We combine our transgenic animals with our proprietary antigen technology and immunization techniques to generate high-quality antibodies for even the most difficult biological challenges, including but not limited to difficult and complex targets such as ion channels, G protein-coupled receptors (“GPCRs”), transporters, and other transmembrane proteins. 3 Table of Contents The various OmniAb animal-based technologies are depicted in the figure below.
The various OmniAb novel animal-based technologies are depicted in the figure below. 3 We believe that natural antibodies are superior to other antibody generation methods due to the immune system’s ability to naturally select quality, and already-optimized antibodies through a process that has evolved over 500 million years.
We believe that natural antibodies are superior to other antibody generation methods due to the immune system’s ability to naturally select quality, and already-optimized antibodies through a process that has evolved over 500 million years.
These patents and applications are directed to methods and apparatus. The patents and applications in our portfolio are expected to expire between 2036 and 2040, without accounting for potentially available patent term adjustments and extensions or disclaimers.
These patents and applications are directed to methods and apparatus. The patents and applications in our portfolio are expected to expire between 2036 and 2040, without accounting for potentially available patent term adjustments and extensions or disclaimers. In addition, the portfolio includes three international patent applications and one U.S. design application which are expected to expire between 2040 and 2046.
The agreement provides OmniAb with the non-exclusive, sublicensable right to incorporate the STR technology into antibodies that have been generated using OmniAb’s antibody discovery platform. xPloration Screening Technology OmniAb’s AI-powered xPloration platform offers superior screening and cell recovery compared to other single-cell profiling technologies. Its high-throughput enables the discovery of rare cells potentially missed by other systems or approaches.
The agreement provides OmniAb with the non-exclusive, sublicensable right to incorporate the STR technology into antibodies that have been generated using OmniAb’s antibody discovery platform. xPloration Screening Technology 13 Table of Contents OmniAb’s AI-powered xPloration platform offers superior screening and cell recovery compared to other single-cell profiling technologies.
As of February 28, 2025, we own a total of 19 registered United States trademarks, fourteen pending United States trademarks, 149 registered foreign trademarks in various countries including China, the European Union, and Japan, and six pending foreign trademarks in various countries around the world.
As of February 28, 2026, we own a total of 29 registered United States trademarks, seven pending United States trademarks, 166 registered foreign trademarks in various countries including China, the European Union, and Japan, and 26 pending foreign trademarks in various countries around the world.
Risk Factors” elsewhere in this Annual Report. Human Capital Resources As of December 31, 2024, we have 114 employees, including 82 employees engaged in research and development, and 42 employees with Ph.D. degrees. Our business development team has six dedicated professionals and our marketing team has two dedicated professionals.
Risk Factors” elsewhere in this Annual Report. Human Capital Resources As of December 31, 2025, we have 89 employees, including 63 employees engaged in research and development, and 29 employees with Ph.D. degrees. Our business development team has four dedicated professionals and our marketing team has one dedicated professional.
We believe that generating large and diverse repertoires of naturally optimized antibodies increases the chances of discovering the antibody with the most desirable therapeutic characteristics. We leverage computationally powered antigen design to tackle challenging therapeutic targets.
We believe that generating large and diverse repertoires of naturally optimized antibodies increases the chances of discovering the antibody with the most desirable therapeutic characteristics. We leverage computationally powered antigen design to tackle challenging therapeutic targets. Antigens can be prepared in specific conformations using protein or small molecule chaperones.
We also have two U.S. patents directed to our GEM assay, including gel microdrops, their use, and their method of manufacture, and foreign counterparts including in Europe, Japan, and Canada, all having an expiration date in 2029 without accounting for potentially available patent term adjustments and extensions or disclaimers.
We also have two U.S. patents directed to our GEM assay, including gel microdrops, their use, and their method of manufacture, and foreign counterparts including in Europe, Japan, and Canada, all having an expiration date in 2029 without accounting for potentially available patent term adjustments and extensions or disclaimers. 18 Table of Contents Ion Channel Platform In 2020, we acquired the core assets of Icagen, an early-stage drug discovery company focused on ion channel and transporter targets.
Ion Channel Capabilities Ion channels and transporters are key components in a wide variety of biological processes that involve rapid changes in cells and have broad therapeutic applicability across multiple therapeutic areas including oncology, metabolic disease, pain, neurological diseases, infectious diseases and others.
The program includes sales of the instrument and single-use consumables and requires a license to our proprietary AI-powered software. 14 Table of Contents Ion Channel Capabilities Ion channels and transporters are key components in a wide variety of biological processes that involve rapid changes in cells and have broad therapeutic applicability across multiple therapeutic areas including oncology, metabolic disease, pain, neurological diseases, infectious diseases and others.
While mouse hybridoma techniques have existed for decades, methods for other species like chickens and cows are unavailable. OmniAb’s B cell screening platforms enable the discovery of unique antibodies from any host system. 13 OmniAb scientists and engineers recently developed a next generation xPloration instrument as depicted in the figure below.
OmniAb’s B cell screening platforms enable the discovery of unique antibodies from any host system. OmniAb scientists and engineers recently developed a next generation xPloration instrument as depicted in the figure below.
In addition, we compete with a variety of fee-for-service contract research organizations that provide services, in most cases using legacy technologies, that compete with one or more steps in our technology platform.
We also face direct business competition from companies that provide antibody discovery services using technologies such as hybridoma and display. In addition, we compete with a variety of fee-for-service contract research organizations that provide services, in most cases using legacy technologies, that compete with one or more technologies in our platform.
We believe the xPloration platform has the potential to drive additional efficiencies in our business and further expand our position as the industry leader in speed, throughput, reliability, and ease-of-use for screening activities.
We believe the xPloration platform has the potential to drive additional efficiencies in our business and further expand our position as the industry leader in speed, throughput, reliability, and ease-of-use for screening activities. xPloration Partner Access Program In May 2025, we launched the xPloration Partner Access Program, under which our partners can purchase the xPloration instrument to enhance their capabilities in antibody discovery and development.
We aim to provide our workforce access to the resources and tools necessary for success in their respective roles. We also provide employees with access to an education reimbursement program to utilize for continual learning courses and relevant certifications. Corporate History and Background We were initially incorporated as Avista Public Acquisition Corp.
We also provide employees with access to an education reimbursement program to utilize for continual learning courses and relevant certifications. Corporate History and Background We were initially incorporated as Avista Public Acquisition Corp. II (“APAC”), an exempted company in the Cayman Islands, on February 5, 2021.
Through this acquisition, we own issued patents and pending patent applications relating to screening methods and antibody engineering. Our patent portfolio includes five issued U.S. patents and one pending U.S. application, one granted European patent, two granted patents in Japan, one granted patent and one pending patent application in China, and other foreign counterparts.
Our patent portfolio includes five issued U.S. patents and one pending U.S. application, one granted European patent, three granted patents in Japan, one granted patent and one pending patent application in China, and other foreign counterparts.
These relate to a variety of initiatives to promote our company culture as well as a sense of community and belonging and are open to all employees who are interested, regardless of their background. 19 We strive to create an environment where individuals, regardless of background, can excel and achieve their highest potential.
These relate to a variety of initiatives to promote our company culture as well as a sense of community and belonging and are open to all employees who are interested, regardless of their background. Competitive pay and benefits We rely on skilled, experienced, and innovative employees to conduct our operations.
Any patents issuing from these applications are expected to expire between 2028 and 2039, without accounting for potentially available patent term adjustments and extensions or disclaimers. We also own several pending international patent applications, U.S. patent applications, and counterpart patent applications pending in other countries, relating to novel antibodies generated with our transgenic animal platforms.
Any patents issuing from these applications are expected to expire between 2028 and 2039, without accounting for potentially available patent term adjustments and extensions or disclaimers.
Upon entering into a license to use the OmniAb platform, our partners typically get access to all existing platforms and services, and we tailor the discovery approach and technology use to each specific program. This approach helps increase the partnership funnel and provides an initial forum for us to expand our relationship moving forward.
We meet our partners’ specific needs by offering access to all or certain components of our technology platform. Upon entering into a license to use the OmniAb platform, our partners typically get access to all existing platforms and services, and we tailor the discovery approach and technology use to each specific program.
(Source: The Antibody Society Database of Antibody Regulatory Approvals, December 31, 2024) 8 Much of the success of antibodies as a therapeutic class is attributable to their favorable qualities relative to other therapeutic modalities. Antibodies can offer high affinity, potency and specificity, limited off-target toxicity, low immunogenicity, superior immune stimulation and the ability to modulate half-life circulation in serum.
(Source: The Antibody Society Database of Antibody Regulatory Approvals, December 31, 2024) 8 Table of Contents Much of the success of antibodies as a therapeutic class is attributable to their favorable qualities relative to other therapeutic modalities.
OmniRat provides cross-reactivity against mouse orthologs of human therapeutic targets, which may streamline preclinical development by obviating the need for surrogate antibodies and thereby may decrease clinical risks. The OmniRat has been engineered to contain functional recombinant immunoglobulin loci, use the full repertoire of human germline genes with similar frequency as humans, and rearrange functional human immunoglobulin genes.
OmniRat produces a diverse repertoire of antibodies with human idiotypes and immunological characteristics that are comparable to antibodies from wildtype animals. OmniRat provides cross-reactivity against mouse orthologs of human therapeutic targets, which may streamline preclinical development by obviating the need for surrogate antibodies and thereby may decrease clinical risks.
STR Technology In 2023, OmniAb entered into an agreement with mAbsolve Ltd. for its Fc-silencing platform technology, STR, which is based upon a proprietary engineered human Fc domain.
As depicted in the figure below, OmniTaur features a fully human variable framework, and an ultralong CDRH3 region, which we believe makes OmniTaur antibodies well suited for targeting unique, disease-relevant epitopes. STR Technology In 2023, OmniAb entered into an agreement with mAbsolve Ltd. for its Fc-silencing platform technology, STR, which is based upon a proprietary engineered human Fc domain.
Our commitment to employee development is evident through our continued internal scientific trainings facilitated by subject matter experts including the latest scientific methods, technologies, and instrumentation/equipment. We prioritize attendance at scientific and technological meetings and conferences, providing employees with valuable education and networking opportunities, while increasing the visibility of our technologies.
Employee development and training We actively engage and incentivize our workforce through various professional development activities. Our commitment to employee development is evident through our continued internal scientific trainings facilitated by subject matter experts including the latest scientific methods, technologies, and instrumentation/equipment.
We intend to continue to invest in enabling technologies and evaluate strategic technology acquisitions to broaden our capabilities in the antibody discovery continuum. • Drive partner adoption through a customizable and flexible offering. We meet our partners’ specific needs by offering access to all or certain components of our technology platform.
The program includes sales of the instrument and single-use consumables and requires a license to our proprietary AI-powered software. We intend to continue to invest in enabling technologies and evaluate strategic technology acquisitions to broaden our capabilities in the antibody and other target-binding protein discovery continuum. • Drive partner adoption through a customizable and flexible offering.
Our partners who use the OmniAb patented technology to generate novel antibodies may be entitled to separate, additional patent protection on such antibodies. Antigen Design OmniAb’s portfolio of issued patents and pending patent applications were acquired through acquisition of Ab Initio in 2019.
Our partners who use the OmniAb patented technology to generate novel antibodies may be entitled to separate, additional patent protection on such antibodies. 17 Table of Contents Antigen Design Through the Ab Initio acquisition in 2019, we obtained an exclusive license from Stanford University directed to screening methods using transmembrane and cell-surface proteins and related compositions and kits.
We are committed to providing all our employees with a fair and living wage, believing that our competitive compensation and benefits package enables us to attract and retain skilled labor.
We are committed to providing all our employees with a fair and living wage, believing that our competitive compensation and benefits package enables us to attract and retain skilled labor. 20 Table of Contents Our notable health, welfare and retirement benefits include: • equity awards; • subsidized health insurance; • subsidized health and mental wellness benefits; • 401(k) Plan with matching contributions; • education reimbursement program; and • paid time off.
Its rapid laser-based recovery process paired with next-generation sequencing enables further mining of immune repertoires for potential hit expansion. These capabilities can save our partners weeks or even months as compared to traditional discovery workflows. xPloration supports various assay formats and is valuable for high-throughput B cell screening within the OmniAb ecosystem.
These capabilities can save our partners weeks or even months as compared to traditional discovery workflows. xPloration supports various assay formats and is valuable for high-throughput B cell screening within the OmniAb ecosystem. While mouse hybridoma techniques have existed for decades, methods for other species like chickens and cows are unavailable.
The animals are bred on a mixed genetic background to further diversify the antibody repertoire and feature different light chain isotypes designed to provide flexibility around partners’ needs and technology. The OmniRat shows high expression, normal human CDR-H3 length distribution, and normal hypermutation and affinity maturation.
The OmniRat has been engineered to contain functional recombinant immunoglobulin loci, use the full repertoire of human germline genes with similar frequency as humans, and rearrange functional human immunoglobulin genes. The animals are bred on a mixed genetic background to further diversify the antibody repertoire and feature different light chain isotypes designed to provide flexibility around partners’ needs and technology.
Our Technology OmniRat OmniRat was launched in 2012 and is the first example of a successful knock-out of the endogenous rat immunoglobulin genes coupled with transgenesis of human counterparts. OmniRat produces a diverse repertoire of antibodies with human idiotypes and immunological characteristics that are comparable to antibodies from wildtype animals.
This approach helps increase the partnership funnel and provides an initial forum for us to expand our relationship moving forward. Our Technology OmniRat OmniRat was launched in 2012 and is the first example of a successful knock-out of the endogenous rat immunoglobulin genes coupled with transgenesis of human counterparts.
Engineered Antibodies The acquisition of Taurus Biosciences in 2020 added technologies for discovery and humanization of antibodies from immunized cows or cow-derived libraries to our platform technology platform. These antibodies feature some of the longest CDR-H3s of any species, with unique genetic and structural diversity that can enable binding to challenging antigens with application in therapeutics, diagnostics and research.
Engineered Antibodies The acquisition of Taurus Biosciences in 2020 added technologies for discovery and humanization of antibodies from immunized cows or cow-derived libraries, and bovinized human antibodies comprising ultralong CDRs and sequences derived therefrom to our platform technology platform.
Industry statistics suggest that these properties have also translated to an increased probability of success relative to other modalities.
Antibodies can offer high affinity, potency and specificity, limited off-target toxicity, low immunogenicity, superior immune stimulation and the ability to modulate half-life circulation in serum. Industry statistics suggest that these properties have also translated to an increased probability of success relative to other modalities.
As of December 31, 2024, there are two programs based on an OmniChicken-derived antibody in clinical development by our partners. OmniTaur OmniTaur was launched in 2020 and provides cow-derived ultralong CDR-H3 antibodies with a human framework.
As of December 31, 2025, there is one program based on an OmnidAb-derived antibody in clinical development by our partners. 12 Table of Contents OmniUltra OmniUltra was launched in 2025 and is the industry’s first and only transgenic chicken engineered to express ultralong CDRH3 domains on a human antibody framework.