Fundraising Fox

Altesa BioSciences

College Park, US · Founded 2020 · Delaware corporation · 6 known investors

Altesa BioSciences is a clinical-stage pharmaceutical company developing vapendavir, an orally administered antiviral targeting rhinovirus infections in patients with chronic lung diseases such as COPD and asthma. The drug aims to stop viral infections before they trigger acute respiratory exacerbations, addressing the underlying viral cause rather than downstream inflammation.

Founders & leadership

JCJohn Clerici
John ClericiinChief Operating Officer
AD
Andrew DrechslerExecutive
BG
Brett GiroirExecutive

Board

NWNicholas Williams
Nicholas WilliamsBoard directorInvestor at Medicxi
MSMoncef Slaoui
Moncef SlaouiBoard directorInvestor at Medicxi
JE
Jon EdwardsBoard director
IHIttai Harel
Ittai HarelinDirector Board of DirectorsManaging Partner | HealthTech at Pitango
SRSeth Rudnick
Seth RudnickBoard directorVenture Partner at Pitango

Investors · 6

Also in the syndicate · 2

Atlantic PartnersSanofi

Reported raises · per SEC filings

Form D private placements

$110M disclosed across 2 rounds · 2022–2026

$75MraisedFeb 2026 · 17 investors · Pharmaceuticals
Rule 506(b)
Officers, directors & promoters on the filing
  • John ClericiExecutive Officer
  • Nicholas WilliamsDirector
  • Moncef SlaouiDirector
  • Andrew DrechslerExecutive Officer
  • Seth RudnickDirector
  • Jon EdwardsDirector
  • Brett GiroirExecutive Officer, Director
  • Ittai HarelDirector
Offering amount
$75M
Amount sold
$75M
First sale
Feb 2026
Incorporated
Corporation, Delaware
Federal exemptions
06b
Full filing on SEC EDGAR ↗
$35MraisedJul 2023 · 18 investors · Pharmaceuticals
Rule 506(b)
Officers, directors & promoters on the filing
  • Brett GiroirExecutive Officer, Director
  • Ittai HarelDirector
  • Moncef SlaouiDirector
  • Seth RudnickDirector
  • Nicholas WilliamsDirector
  • John ClericiExecutive Officer
Offering amount
$35M
Amount sold
$35M
First sale
Dec 2022
Incorporated
Corporation, Delaware, 2020
Federal exemptions
06b
Full filing on SEC EDGAR ↗

Source: SEC EDGAR Form D. Amounts as filed; amended filings shown once at their latest values.

Competitors · 2

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In the news

Frequently asked questions

What does Altesa BioSciences do?
Altesa BioSciences is a clinical-stage pharmaceutical company developing vapendavir, an orally administered antiviral targeting rhinovirus infections in patients with chronic lung diseases such as COPD and asthma. The drug aims to stop viral infections before they trigger acute respiratory exacerbations, addressing the underlying viral cause rather than downstream inflammation.
Who are Altesa BioSciences's investors?
Altesa BioSciences's investors include GRA Venture, Forbion, Medicxi, Pitango.
How much funding has Altesa BioSciences raised?
Altesa BioSciences has disclosed $110M raised across 2 rounds.
Where is Altesa BioSciences headquartered?
Altesa BioSciences is headquartered in College Park, US.