David Collier

Chief Executive Officer at X-37

📍 South San Francisco, California, United States🔄 Updated September 2026💼 8 investments📅 25 years investing🗓 Last invested Jan 2012𝕏 @upgrade_to_unlock
Operator-angel🌍 United States
8
Total investments
3
Early stage
1
Mid stage
2
Late stage
25y
Years active

Portfolio

6 investments · sorted by recency
All investments
Early stage
Mid stage
Late stage
Board Member
Jan 2012
Exela Pharma Sciences, a fast-growing specialty pharmaceutical company, focuses on developing, manufacturing and marketing generic and proprietary injectable and sterile ophthalmic products that keep the healthcare provider and patient in mind. Our goal is to deliver high quality, affordable products that make a difference in people’s lives, and also meet the needs of the healthcare providers that treat them. Exela targets the development and manufacturing of generic and proprietary injectable and sterile ophthalmic products with high barriers to market entry, via an Abbreviated New Drug Approval or 505(b)(2) regulatory pathway. We develop products that enhance the patient or provider experience such as easing the burden of administration, providing an improved safety profile, faster drug preparation, or reduce drug waste. In other words, we strive to improve patient outcomes while reducing overall health care costs.
Co-founder, Board Member
Jun 2011
We are a late stage biopharmaceutical company focused on the development and commercialization of serlopitant for the treatment of pruritus, or itch, associated with various conditions. We believe that serlopitant, a highly selective small molecule inhibitor of the neurokinin 1 receptor, or NK1R, given as a once daily, oral tablet, has the potential to significantly alleviate pruritus associated with various conditions.
Board Member
2011
Ardelyx is a commercial-stage biopharmaceutical company focused on the development and commercialization of innovative medicines that meet significant unmet medical needs. Ardelyx has two commercial products approved in the United States, IBSRELA® (tenapanor) and XPHOZAH® (tenapanor). The company’s pipeline includes the Phase 3 development of tenapanor for chronic idiopathic constipation, and RDX10531, a next-generation NHE3 inhibitor with potential application across multiple therapeutic areas. Ardelyx has agreements for the development and commercialization of tenapanor outside of the U.S. Kyowa Kirin commercializes PHOZEVEL® (tenapanor) for hyperphosphatemia in Japan. A New Drug Application for tenapanor for hyperphosphatemia has been approved in China with Fosun Pharma. Knight Therapeutics commercializes IBSRELA in Canada. Community Guidelines: https://rb.gy/07ltg3
Board Member
2007
Auspex Pharmaceuticals is a biopharmaceutical company focused on the development and commercialization of novel medicines for people with movement disorders and other rare diseases, including orphan diseases, which are rare diseases that affect fewer than 200,000 people in the United States. Our pipeline includes product candidates to address unmet medical needs in hyperkinetic movement disorders, such as chorea (abnormal involuntary movements) associated with Huntington’s disease, an orphan disease, and tardive dyskinesia and Tourette syndrome, subsets of either of which may be deemed to be orphan diseases, as well as other orphan indications.
late stagePharmaceuticals
Board Member
2006
Sorbent Therapeutics is a private biopharmaceutical company focused on the development of adaptable non-absorbed polymeric drugs to satisfy unmet clinical needs in large markets such as Congestive Heart Failure (CHF), Chronic Kidney Disease (CKD), End Stage Renal Disease (ESRD), and Hypertension. The array of customized compounds under development in our pipeline are all based on CLP's robust platform, which can be tailored to sequester or contribute targeted ions and/or fluid.
Board Member
2001
With origins as a trailblazing developer of science-based approaches to enhancing the quality and nutritional value of crops and food ingredients, Arcadia Biosciences (Nasdaq: RKDA) is now a producer of innovative, plant-based health and wellness products, within the portfolios of GoodWheat™ and Lief™, which includes popular brands Soul SpringTM, ProVaultTM, Saavy NaturalsTM, Zola® coconut water and SONOVA® GLA safflower oil. The company’s growing number of innovative offerings are designed to enhance quality and health benefits in an array of consumer product categories. For more information, visit www.arcadiabio.com.
Experience · 11 entries
All (11)
Investments (7)
Founder (1)
Board (7)
2014
Managing Director
Nov 2014
Venture capital firm located in San Francisco, CA. Investment focus includes healthcare, technology, and energy. Select portfolio companies include Tetraphase Pharmaceuticals, AirTight Networks, Odyssey Logistics & Technology Corp., Intermolecular, Arcadia Biosciences, and LiveOps.
2012
Board Member
Jan 2012
Exela Pharma Sciences, a fast-growing specialty pharmaceutical company, focuses on developing, manufacturing and marketing generic and proprietary injectable and sterile ophthalmic products that keep the healthcare provider and patient in mind. Our goal is to deliver high quality, affordable products that make a difference in people’s lives, and also meet the needs of the healthcare providers that treat them. Exela targets the development and manufacturing of generic and proprietary injectable and sterile ophthalmic products with high barriers to market entry, via an Abbreviated New Drug Approval or 505(b)(2) regulatory pathway. We develop products that enhance the patient or provider experience such as easing the burden of administration, providing an improved safety profile, faster drug preparation, or reduce drug waste. In other words, we strive to improve patient outcomes while reducing overall health care costs.
2011
Co-founder, Board Member
Jun 2011
We are a late stage biopharmaceutical company focused on the development and commercialization of serlopitant for the treatment of pruritus, or itch, associated with various conditions. We believe that serlopitant, a highly selective small molecule inhibitor of the neurokinin 1 receptor, or NK1R, given as a once daily, oral tablet, has the potential to significantly alleviate pruritus associated with various conditions.
Board Member
2011
Ardelyx is a commercial-stage biopharmaceutical company focused on the development and commercialization of innovative medicines that meet significant unmet medical needs. Ardelyx has two commercial products approved in the United States, IBSRELA® (tenapanor) and XPHOZAH® (tenapanor). The company’s pipeline includes the Phase 3 development of tenapanor for chronic idiopathic constipation, and RDX10531, a next-generation NHE3 inhibitor with potential application across multiple therapeutic areas. Ardelyx has agreements for the development and commercialization of tenapanor outside of the U.S. Kyowa Kirin commercializes PHOZEVEL® (tenapanor) for hyperphosphatemia in Japan. A New Drug Application for tenapanor for hyperphosphatemia has been approved in China with Fosun Pharma. Knight Therapeutics commercializes IBSRELA in Canada. Community Guidelines: https://rb.gy/07ltg3
2007
Board Member
2007
Auspex Pharmaceuticals is a biopharmaceutical company focused on the development and commercialization of novel medicines for people with movement disorders and other rare diseases, including orphan diseases, which are rare diseases that affect fewer than 200,000 people in the United States. Our pipeline includes product candidates to address unmet medical needs in hyperkinetic movement disorders, such as chorea (abnormal involuntary movements) associated with Huntington’s disease, an orphan disease, and tardive dyskinesia and Tourette syndrome, subsets of either of which may be deemed to be orphan diseases, as well as other orphan indications.
late stagePharmaceuticals
Show all 11 entries ↓
Investment activity
2001–2012 · 8 investments
20011200412005120061200712011220121
Recent (last 2 years)Earlier