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Windtree Therapeutics
Windtree Therapeutics is a publicly traded biotech developing istaroxime for acute cardiogenic shock and KL4 surfactant for neonatal respiratory distress.
Windtree Therapeutics
Windtree Therapeutics, Inc. is a publicly traded biotechnology company listed on the Nasdaq under the ticker symbol WINT. The company was originally founded as Discovery Laboratories before rebranding to Windtree in 2016. Its focus lies in developing novel therapies for acute cardiovascular and pulmonary conditions, leveraging a deep pipeline of product candidates. The company's primary asset is istaroxime, a first-in-class dual mechanism agent being investigated for the treatment of acute cardiogenic shock. Clinical trials for istaroxime have shown potential to improve hemodynamic parameters in patients. Windtree also has a portfolio of surfactant therapies, including KL4 surfactant, designed for neonatal respiratory distress syndrome. The company has conducted research collaborations with institutions such as the University of Pennsylvania for preclinical work. Windtree is headquartered in Pennsylvania, with additional operations in Warrington, PA. The company's market capitalization was approximately $8.9 million as of mid-2026, reflecting its position as a small-cap public biotech. The firm operates with a lean structure, with fewer than 20 employees based on public filings. A key structural differentiator is Windtree's status as a publicly traded company with a clinical-stage pipeline, rather than a family office or private investment firm. This requires public disclosure of financials and clinical trial data through SEC filings, offering transparency to investors. The company's reliance on partnership and licensing deals for commercialization positions it as a focused drug developer.
General information
Firm type
Asset Manager
Year founded
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AUM
Undisclosed
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Frequently asked questions
What is Windtree Therapeutics' lead drug candidate?
Windtree's lead candidate is istaroxime, a first-in-class agent that combines a sodium-potassium ATPase inhibitor and a SERCA2a activator, designed to improve cardiac contractility and blood pressure in acute heart failure. The drug is in Phase 2 clinical trials for acute cardiogenic shock (per clinicaltrials.gov, NCT05213117).
Is Windtree Therapeutics a family office or investment firm?
No. Windtree Therapeutics is a publicly traded biotechnology company, not a family office. It files annual and quarterly reports with the SEC under the ticker WINT.
How does Windtree fund its operations?
The company raises capital through public equity offerings, at-the-market offerings, and research grants. In 2025, Windtree completed a $3.5 million public offering to fund clinical trials (per SEC filing, June 2025).
What therapeutic areas does Windtree focus on?
Windtree focuses on acute cardiovascular conditions (acute heart failure, cardiogenic shock) and neonatal pulmonary diseases (respiratory distress syndrome). Its pipeline includes istaroxime and KL4 surfactant.
Has Windtree received FDA approval for any drug?
As of 2026, Windtree has not received FDA approval for any drug. Its KL4 surfactant program was previously in development but was not approved. Istaroxime remains in clinical testing.
Where is Windtree Therapeutics headquartered?
Windtree's headquarters is in Pennsylvania, with offices in Warrington, PA. The company's registered address is in the state of Delaware, its incorporation state.
Who are Windtree's key executives?
The CEO is Craig Fraser, appointed in 2020. Other officers include John Yetter (former interim CEO) and Nelson Yeu (CFO, appointed 2025). The board includes medical and financial professionals.
Profile maintained by Altss using OSINT (open-source intelligence), regulatory filings, licensed data partners, and verified direct submissions. Read the methodology. Last updated: . Continuous refresh with full update cycles at least every 30 days.
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