Steven M. Altschuler

Managing Director

9 past transactions

Corner Therapeutics

Series A in 2024
Corner Therapeutics is a biotechnology research company focused on advancing immunotherapy solutions. The company specializes in stimulating exceptional memory T cells to achieve lifelong immunity. It has developed a versatile dendritic cell hyperactivation (hDC) platform that induces strong T-cell responses, aiming to deliver robust and durable immunity against a wide array of cancers and infectious diseases. By providing these innovative technologies, Corner Therapeutics enables healthcare providers to enhance immune responses and promote long-lasting immunity, positioning itself at the forefront of immunotherapy research.

Platelet BioGenesis

Series B in 2021
Platelet BioGenesis, Inc. is a biotechnology company based in Cambridge, Massachusetts, established in 2014. It specializes in the production of donor-independent human platelets derived from pluripotent stem cells for clinical applications. The company has developed a microfluidic bioreactor that enables the generation of functional platelets at commercial scale from human stem cell cultures. These bioreactor-produced platelets are distributed to hospitals and blood banks, providing essential therapeutic resources to patients globally. Through its innovative approach, Platelet BioGenesis is contributing to advancements in biotechnology and the field of transfusion medicine.

Mighty Networks

Series B in 2021
Mighty Software, Inc. operates Mighty Networks, an online platform that enables creators and brands to build and grow engaged communities. Founded in 2017 and based in Palo Alto, California, the company provides a Software as a Service (SaaS) solution that allows users to sell experiences, relationships, and expertise through a combination of community interaction, content, online courses, and subscription commerce. This integrated approach ensures that all offerings are presented under the creator's brand and accessible across multiple platforms. By fostering connections among members, Mighty Networks enhances the value of a creator's brand as the community expands.

Affinivax

Series C in 2021
Affinivax, Inc. is a biotechnology company based in Lexington, Massachusetts, specializing in the development of vaccines using its innovative Multiple Antigen Presenting System (MAPS) technology. Founded in 2014, the company aims to enhance the protection against a range of infectious diseases that affect both children and adults globally. MAPS technology allows for the effective binding of protective polysaccharides and proteins within a single vaccine, inducing robust immune responses. Affinivax is advancing vaccine programs targeting significant pathogens, including Streptococcus pneumoniae, which contributes to considerable morbidity and mortality worldwide. The company leverages insights from leading experts in infectious diseases and has secured exclusive intellectual property rights related to its MAPS platform from Boston Children’s Hospital, with notable backing from the Bill & Melinda Gates Foundation.

SomaLogic

Series A in 2020
SomaLogic, Inc. is a commercial-stage company based in Boulder, Colorado, specializing in protein biomarker discovery and clinical diagnostics. Founded in 1999, the company has developed advanced technologies such as SOMAmers, slow off-rate modified aptamers that specifically bind to target proteins, and the SOMAscan platform, which facilitates comprehensive protein measurement. This innovative approach allows for the analysis of protein biomarker signatures, significantly enhancing the understanding of health and disease beyond traditional genomic methods. SomaLogic's products are utilized in a variety of applications, including diagnostics for conditions in oncology, neurology, and cardiovascular and metabolic diseases, as well as in drug discovery and development. The company also offers diagnostic tests and protein measurement solutions for life science and biopharma researchers, contributing to advancements in medical science.

Imvax

Series C in 2020
Imvax, Inc. is a clinical-stage biotechnology company based in Philadelphia, Pennsylvania, focused on developing innovative, patient-specific vaccines and immunotherapy strategies for the treatment of malignant gliomas and other cancers with significant unmet medical needs. Incorporated in 2015, Imvax's primary product, IGV-001, is an autologous tumor cell vaccine designed to harness the patient's immune system to generate a robust response against tumor cells. The company employs advanced methodologies, including patient cell harvest and treatment, immunogenic cell death, and activation of both the innate and adaptive immune systems, to enhance therapeutic outcomes. Through its novel approach, Imvax aims to provide effective treatments for patients facing challenging cancer diagnoses.

Affinivax

Series B in 2020
Affinivax, Inc. is a biotechnology company based in Lexington, Massachusetts, specializing in the development of vaccines using its innovative Multiple Antigen Presenting System (MAPS) technology. Founded in 2014, the company aims to enhance the protection against a range of infectious diseases that affect both children and adults globally. MAPS technology allows for the effective binding of protective polysaccharides and proteins within a single vaccine, inducing robust immune responses. Affinivax is advancing vaccine programs targeting significant pathogens, including Streptococcus pneumoniae, which contributes to considerable morbidity and mortality worldwide. The company leverages insights from leading experts in infectious diseases and has secured exclusive intellectual property rights related to its MAPS platform from Boston Children’s Hospital, with notable backing from the Bill & Melinda Gates Foundation.

Imvax

Series B in 2019
Imvax, Inc. is a clinical-stage biotechnology company based in Philadelphia, Pennsylvania, focused on developing innovative, patient-specific vaccines and immunotherapy strategies for the treatment of malignant gliomas and other cancers with significant unmet medical needs. Incorporated in 2015, Imvax's primary product, IGV-001, is an autologous tumor cell vaccine designed to harness the patient's immune system to generate a robust response against tumor cells. The company employs advanced methodologies, including patient cell harvest and treatment, immunogenic cell death, and activation of both the innate and adaptive immune systems, to enhance therapeutic outcomes. Through its novel approach, Imvax aims to provide effective treatments for patients facing challenging cancer diagnoses.

Platelet BioGenesis

Series A in 2019
Platelet BioGenesis, Inc. is a biotechnology company based in Cambridge, Massachusetts, established in 2014. It specializes in the production of donor-independent human platelets derived from pluripotent stem cells for clinical applications. The company has developed a microfluidic bioreactor that enables the generation of functional platelets at commercial scale from human stem cell cultures. These bioreactor-produced platelets are distributed to hospitals and blood banks, providing essential therapeutic resources to patients globally. Through its innovative approach, Platelet BioGenesis is contributing to advancements in biotechnology and the field of transfusion medicine.
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