Ally Bridge Group

Ally Bridge Group is a healthcare-focused private investment group founded in 2013, with operations in Hong Kong and the United States. The firm specializes in venture and growth capital, buyout, and hedge fund investing, primarily targeting life sciences companies and innovative medical technologies. With a commitment to bridging the gap between groundbreaking healthcare innovations and global markets, Ally Bridge Group invests in both private and public equity across various sectors, including medical devices and biopharmaceuticals. By leveraging its extensive expertise and network, the firm aims to support the development and growth of its portfolio companies, focusing on transformative solutions that address significant unmet medical needs.

Slanix Alex

Portfolio Manager and President, Public Equity

Tinnie Chau

Vice President

Charles Chon

Managing Director

Paresh Kumar

Vice President

David Nikodem

Managing Director

Sebastian Paquette

Principal, Private Equity

Plachtyna, Steven

Vice President

Reese Yeh

Managing Director

Frank Yu

Founder and CEO

Steven Plachtyna

Vice President, Private Equity

Past deals in Health Care

Kandu Health

Venture Round in 2025
Kandu is a tech-enabled healthcare company focused on enhancing the quality of life for stroke survivors and their families. The company specializes in stroke recovery training, stroke detection research, and educational services. It provides remote clinical support through a dedicated app, delivering personalized information, resources, and guidance tailored to the needs of each user. This approach empowers stroke survivors to take control of their recovery and adjust to life after a stroke.

Cardiac Dimensions

Series E in 2025
Cardiac Dimensions, Inc. is a medical device company focused on developing minimally invasive treatments for heart failure and associated cardiovascular conditions. The company is known for its Carillon Mitral Contour System, a permanent implant designed to treat functional mitral regurgitation through a non-surgical, catheter-based approach that reshapes the mitral valve and reduces regurgitation. Established in 2000, Cardiac Dimensions is headquartered in Kirkland, Washington, with additional operations in Sydney, Australia, and Offenbach, Germany.

Aadi Bioscience

Post in 2025
Aadi Bioscience, Inc. is a clinical-stage biopharmaceutical company based in Pacific Palisades, California, focused on developing precision therapies for genetically-defined cancers. The company specializes in mTOR inhibitors, particularly ABI-009, aimed at treating patients with alterations in the TSC1 or TSC2 genes, where existing mTOR inhibitors have limitations in pharmacology, drug delivery, or safety. Aadi's primary focus is on providing transformational therapies for patients with ultra-rare cancers, such as perivascular epithelioid cell tumors (PEComa). Since its founding in 2011, Aadi Bioscience has aimed to address significant unmet medical needs in oncology and related therapeutic areas.

Aadi Bioscience

Post in 2024
Aadi Bioscience, Inc. is a clinical-stage biopharmaceutical company based in Pacific Palisades, California, focused on developing precision therapies for genetically-defined cancers. The company specializes in mTOR inhibitors, particularly ABI-009, aimed at treating patients with alterations in the TSC1 or TSC2 genes, where existing mTOR inhibitors have limitations in pharmacology, drug delivery, or safety. Aadi's primary focus is on providing transformational therapies for patients with ultra-rare cancers, such as perivascular epithelioid cell tumors (PEComa). Since its founding in 2011, Aadi Bioscience has aimed to address significant unmet medical needs in oncology and related therapeutic areas.

Vida Health

Venture Round in 2023
Vida Health, Inc. is a virtual care company based in San Francisco, California, focused on addressing chronic physical and behavioral health conditions. The company offers a comprehensive digital platform that combines artificial intelligence with human support, providing users access to coaches, nutritionists, diabetes educators, nurses, trainers, and licensed therapists. This platform features personalized content, lessons, and habit recommendations, along with video sessions and messaging to facilitate communication. Vida Health's approach aims to treat the whole health of individuals by integrating mental and physical care, helping users prevent, manage, and potentially reverse chronic conditions such as diabetes and hypertension, as well as associated mental health issues like stress, depression, and anxiety. Founded in 2014, Vida Health has earned the trust of major employers and health plans in the United States for its clinically validated services.

ProMIS Neurosciences

Post in 2023
ProMIS Neurosciences is a development-stage biotech company that discovers and develops precision therapeutics and companion diagnostics for early detection and effective treatment of neurodegenerative diseases, in particular, Alzheimer’s disease (AD) and amyotrophic lateral sclerosis (ALS). It was founded in 2004 and headquartered in Toronto, Canada.

Imperative Care

Series D in 2021
Imperative Care focuses on developing a portfolio of innovative solutions to address the vast and urgent unmet needs in stroke care. It focuses on medical technology designed to expedite and improve the effectiveness of treatment, giving patients a chance for optimal recovery.

Imperative Care

Series C in 2019
Imperative Care focuses on developing a portfolio of innovative solutions to address the vast and urgent unmet needs in stroke care. It focuses on medical technology designed to expedite and improve the effectiveness of treatment, giving patients a chance for optimal recovery.
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