Firms

Madryn Asset Management

New York, New York, United States

Madryn Asset Management, LP is a New York healthcare alternative investment manager launched in 2017. It provides structured debt, tailored credit and selected equity financing to commercially validated healthcare growth companies, combining clinical research with financial analysis and operational support. Its portfolio spans medical devices, therapeutics, diagnostics, life-science tools and healthcare technology and services. Neuroscience exposure includes transcranial magnetic stimulation through Neuronetics and Greenbrook TMS and minimally invasive neurosurgery through Monteris Medical; AI-enabled healthcare operations and virtual care are also areas of interest. Managing Partner Avinash Amin is a physician, and the published team includes investment, finance, legal, operations and scientific policy leaders. Madryn Health Partners and Select Opportunities are investment vehicles, distinct from the management partnership and fund administration entities. Walter Global Asset Management acquired a minority interest in the manager in January 2024, separately from investments in healthcare portfolio companies. Portfolio listings establish an investment relationship without automatically proving equity ownership, a specific financing round, or a fully drawn loan commitment.

Founded: 2017
Type: Venture capital

Funds3

Madryn Health Partners II, LP2025-012025-01$358M
Madryn’s second healthcare structured financing fund. The manager’s public May 2025 presentation states a final closing in January 2025 with USD358M cumulative commitments. A dedicated overage co-investment vehicle remained open in April 2025 and is not included as another closed fund.
Madryn Health Partners, LP——
Healthcare structured debt and selected equity fund advised by Madryn Asset Management. The manager’s May 2025 public pension presentation reports Fund I size of USD410M; a separately verified final close date and final commitment amount are not established, so numeric close amount and date remain empty.
Madryn Select Opportunities, LP——
Funded investment vehicle advised by Madryn Asset Management. Primary SEC ownership reports identify the fund’s securities and manager/adviser relationship. Its fund close amount and date are unverified; MSO reported current size of USD103M is not used as final closed commitments.

Team

Operations and support

Addison WrightManaging Director

Alex MarcantonioPartner

Austin FerroneVice President

Avinash AminManaging Partner

John LeonePartner

John RicciardiPartner, Chief Operating Officer and Chief Financial Officer

Matthew GirandolaGeneral Counsel and Chief Compliance Officer

Mickey CrocePrincipal, Director of Finance

Rochelle WalenskyChief Scientific and Policy Advisor

Scott MureSenior Operations Associate

William SuSenior Associate

Co-investing

Birchview Capital

Monteris Medical$28M · 2026-03-12

CU Healthcare Innovation Fund

Monteris Medical$28M · 2026-03-12

EW Healthcare Partners

Venus Concept$38M · 2017-07-13

Greybrook Health

Greenbrook TMS$6M · 2023-03-23

HealthQuest Capital

Venus Concept$38M · 2017-07-13

$—2026-03-30	Venus Concept	Madryn Asset Management
$1M2026-03-26	Venus Concept	Madryn Asset Management
$28M2026-03-12	Monteris Medical	InnovaHealth Partners, Birchview Capital, CU Healthcare Innovation Fund, Madryn Asset Management, OSF Ventures
$—2024-12-09	Neuronetics	Madryn Asset Management
$2M2024-11-06	Greenbrook TMS	Madryn Asset Management
$—2024-10-15	Greenbrook TMS	Madryn Asset Management
$1M2024-10-03	Greenbrook TMS	Madryn Asset Management
$2M2024-09-26	Venus Concept	Madryn Asset Management
$—2024-09-19	Greenbrook TMS	Madryn Asset Management
$—2024-09-05	Greenbrook TMS	Madryn Asset Management
$—2024-08-19	Greenbrook TMS	Madryn Asset Management
$—2024-08-02	Greenbrook TMS	Madryn Asset Management
$—2024-07-18	Greenbrook TMS	Madryn Asset Management
$—2024-06-27	Greenbrook TMS	Madryn Asset Management
$—2024-06-25	Greenbrook TMS	Madryn Asset Management
$—2024-06-04	Greenbrook TMS	Madryn Asset Management
$—2024-05-15	Greenbrook TMS	Madryn Asset Management
$—2024-05-01	Greenbrook TMS	Madryn Asset Management
$2M2024-04-23	Venus Concept	Madryn Asset Management
$—2024-04-15	Greenbrook TMS	Madryn Asset Management
$—2024-03-29	Greenbrook TMS	Madryn Asset Management
$—2024-03-15	Greenbrook TMS	Madryn Asset Management
$—2024-03-01	Greenbrook TMS	Madryn Asset Management
$2M2024-02-15	Greenbrook TMS	Madryn Asset Management
$—2024-02-05	Greenbrook TMS	Madryn Asset Management
$—2024-01-19	Greenbrook TMS	Madryn Asset Management
$5M2023-12-28	Greenbrook TMS	Madryn Asset Management
$—2023-12-14	Greenbrook TMS	Madryn Asset Management
$—2023-12-05	Greenbrook TMS	Madryn Asset Management
$—2023-11-15	Greenbrook TMS	Madryn Asset Management
$—2023-11-02	Greenbrook TMS	Madryn Asset Management
$—2023-10-19	Greenbrook TMS	Madryn Asset Management
$1M2023-10-12	Greenbrook TMS	Madryn Asset Management
$—2023-09-15	Greenbrook TMS	Madryn Asset Management
$2M2023-08-01	Greenbrook TMS	Madryn Asset Management
$—2023-03-24	Greenbrook TMS	Madryn Asset Management
$6M2023-03-23	Greenbrook TMS	Madryn Asset Management, Masters Special Situations, Greybrook Health
$—2023-03-20	Greenbrook TMS	Madryn Asset Management
$—2023-02-21	Greenbrook TMS	Madryn Asset Management
$—2023-02-01	Greenbrook TMS	Madryn Asset Management
$28M2022-10-27	Monteris Medical	Madryn Asset Management
$55M2022-07-14	Greenbrook TMS	Madryn Asset Management
$38M2017-07-13	Venus Concept	EW Healthcare Partners, HealthQuest Capital, Madryn Asset Management
$10MUnknown date	Venus Concept	Madryn Asset Management
$15MUnknown date	Venus Concept	Madryn Asset Management

Funds3

Team

Operations and support

Co-investing

Investments