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- Windward Bio
Windward Bio Funding, Investors & Competitors
Windward Bio has raised $365M across 2 funding rounds, most recently a $165M undisclosed-stage round in May 2026.
Last Windward Bio funding round
$165M
Undisclosed stage · May 2026
Cumulative funding Windward Bio raised
$365M
across 2 funding rounds
Key investors in Windward Bio
Qiming Venture Partners
OrbiMed
Novo Holdings
SR One
Omega Funds
RTW Investments
Quan Capital
RA Capital Management
About Windward Bio
Windward Bio is a Basel, Switzerland-based clinical-stage biotechnology company launched in January 2025. It develops long-acting immunology therapies for serious respiratory and dermatological diseases such as severe asthma and COPD, including its lead candidate WIN378, a long-acting anti-TSLP monoclonal antibody in-licensed from Kelun-Biotech and Harbour BioMed. The company has in-licensed a second bispecific antibody candidate, WIN027, from Qyuns Therapeutics to expand its pipeline in respiratory and dermatology indications.
Founded
2024
HQ
Website
Status
Privately held
Customer focus
B2C
Revenue model
Product sales
Windward Bio Funding History
Windward Bio has raised a total of $365M across 2 funding rounds.
Windward Bio's first fundraising round was a $200M Series A in January 2025. The most recent completed round was a $165M undisclosed-stage round in May 2026.
Windward Bio funding rounds
| Date | Stage | Investors | Raised | Deal Summary |
|---|---|---|---|---|
| May 2026 | Undisclosed stage | OrbiMed (lead); RTW Investments; Novo Holdings; Quan Capital; SR One; Janus Henderson; Qiming Venture Partners; HBM Holdings; Omega Funds; RA Capital Management; Dyal Capital Partners; Sanofi Ventures | $165M | Windward Bio completed a $165 million crossover financing on May 4, 2026, led by OrbiMed with participation from new investors RA Capital Management, Janus Henderson Investors, Sanofi Ventures, and Harbour BioMed, alongside existing Series A investors including Novo Holdings, Blue Owl Healthcare Opportunities, SR One, Omega Funds, RTW Investments, Qiming Venture Partners, Quan Capital, and Pivotal bioVenture Partners. Proceeds will advance lead candidate WIN378 into Phase 3 trials and WIN027 into proof-of-concept studies across respiratory and dermatology indications starting in Q4 2026, significantly extending cash runway to enable multiple clinical readouts within the next 12 months. Windward Bio, a Basel, Switzerland-based clinical-stage biotechnology company launched in January 2025, focuses on long-acting immunology therapies for serious immunological diseases in respiratory and dermatology. The company has in-licensed two clinical-stage assets and raised a total of $365 million to date, rapidly advancing both programs in the clinic. |
| Jan 2025 | Series A | Blue Owl Capital Inc. (lead); Novo Holdings (lead); OrbiMed (lead); RTW Investments; Quan Capital; SR One; Qiming Venture Partners; Omega Funds; Pivotal bioVenture Partners | $200M | Windward Bio, a Swiss-based clinical-stage biotechnology company focused on developing novel therapeutics for serious immunological diseases like severe asthma and COPD, launched on January 10, 2025, with a $200 million oversubscribed Series A financing. The round was co-led by OrbiMed, Novo Holdings, and Blue Owl Healthcare Opportunities, with participation from SR One, Omega Funds, RTW Investments, Qiming Venture Partners, Quan Capital, and Pivotal bioVenture Partners. Proceeds fund the advancement of two undisclosed bispecific programs through IND-enabling studies and the development of lead candidate WIN378, a phase 2-ready, long-acting anti-TSLP monoclonal antibody in-licensed from Kelun-Biotech and Harbour BioMed, featuring potential six-month dosing. The founding team, led by CEO Luca Santarelli, M.D., includes seasoned executives with a track record of over 15 product launches, two Nasdaq IPOs, and exits including Therachon to Pfizer for $810M and VectivBio to Ironwood for $1.2B. WIN378 targets thymic stromal lymphopoietin (TSLP) for severe respiratory conditions, with phase 2 trials planned and initial readouts anticipated by 2026. The company aims to build a pipeline of long-acting bispecifics leveraging validated targets for best-in-disease efficacy in immunology. In late 2025, Windward Bio expanded via a second licensing deal with Qyuns Therapeutics for WIN027 (formerly QX027N), a potent long-acting bispecific antibody for respiratory and dermatology indications, valued at up to $700M in upfront, equity, milestones, and royalties (excluding Greater China). This follows the initial Kelun-Harbour deal, which included $45M upfront/near-term payments split between partners plus potential change-of-control or sublicense fees. |
Who has invested in Windward Bio?
14 investors have backed Windward Bio across its funding rounds, including Qiming Venture Partners, OrbiMed, Novo Holdings, SR One, Omega Funds and RTW Investments.
Lead investors include OrbiMed, Blue Owl Capital Inc. and Novo Holdings.
Windward Bio Investors
| Investor | HQ | Rounds | Role | First check |
|---|---|---|---|---|
| 2 | Participant | Jan 2025 | ||
| 2 | Lead | Jan 2025 | ||
| 2 | Participant | Jan 2025 | ||
| 2 | Participant | Jan 2025 | ||
| 2 | Participant | Jan 2025 | ||
| 2 | Participant | Jan 2025 | ||
| 2 | Lead | Jan 2025 | ||
| 1 | Lead | Jan 2025 | ||
| 1 | Participant | May 2026 | ||
| 1 | Participant | May 2026 | ||
| 1 | Participant | May 2026 | ||
| 1 | Participant | May 2026 | ||
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Benchmark 350K+ Funding Rounds and Disclosed VC Valuation Multiples
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Start Free TrialWindward Bio Competitors
Windward Bio competitors include listed companies like Johnson & Johnson and Roche, and private ones like Biosplice Therapeutics, Biomat USA, ArsenalBio and BioRay Pharmaceuticals.
| Company | HQ | Status | Revenue | EBITDA | Valuation | Revenue Multiple |
|---|---|---|---|---|---|---|
| Publicly listed | $94B | $40B | $651B | 6.8x | ||
| Publicly listed | $77B | $26B | $351B | 4.9x | ||
| Private | - | - | $12B | - | ||
| Private | - | - | $4.2B | - | ||
| Private | - | - | $1.9B | - | ||
| Private | $131M | - | $1.9B | 14.5x |
Windward Bio Public Comps
Windward Bio is still privately-owned, but its public comps include Samsung, Eli Lilly, Johnson & Johnson, AbbVie, Merck, Roche, Novartis, AstraZeneca, Thermo Fisher Scientific and Siemens.
| Last FY | EV/Revenue | EV/EBITDA | ||||||
|---|---|---|---|---|---|---|---|---|
| Revenue | EBITDA | Last FY | LTM | 2027E | Last FY | LTM | 2027E | |
| $243B | $67B | 4.4x | 2.4x | 15.8x | 4.4x | |||
| $65B | $28B | 16.5x | 13.1x | 38.7x | 27.0x | |||
| $94B | $40B | 7.2x | 6.8x | 17.0x | 18.3x | |||
| $61B | $17B | 8.7x | 8.1x | 30.6x | 17.6x | |||
| $65B | $28B | 6.3x | 6.2x | 14.7x | 21.0x | |||
| $77B | $26B | 5.0x | 4.9x | 14.6x | 12.4x | |||
| $57B | $22B | 5.5x | 5.5x | 14.2x | 13.3x | |||
| $59B | $19B | 4.8x | 4.5x | 14.6x | 12.7x | |||
This data is available for Pro users. Sign up to see all Windward Bio competitors and their valuation data. Start Free Trial | ||||||||
Common questions about Windward Bio
| When was Windward Bio founded? | Windward Bio was founded in 2024. |
| Where is Windward Bio headquartered? | Windward Bio is headquartered in Switzerland. |
| Is Windward Bio publicly listed? | No, Windward Bio is a private, VC-backed company. |
| How much funding has Windward Bio raised? | Windward Bio has raised $365M across 2 funding rounds. |
| What was Windward Bio's last funding round? | Windward Bio's last funding round was a $165M undisclosed-stage round in May 2026, led by OrbiMed. |
| Who are Windward Bio's investors? | Windward Bio's investors include RTW Investments, Novo Holdings, Quan Capital, SR One, Qiming Venture Partners, Omega Funds, OrbiMed, Blue Owl Capital Inc., Janus Henderson, HBM Holdings and 4 others. |
| Which companies are comparable to Windward Bio? | Companies comparable to Windward Bio include Johnson & Johnson, Roche, Biosplice Therapeutics, Biomat USA, ArsenalBio and BioRay Pharmaceuticals. |
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