Prolong Pharmaceuticals, LLC
PrivateLast Round
Grant
Nov 3, 2010
Total Funding Raised
$30.24M
Momentum
Top 10%
of companies Caplight tracks
Company Overview
Prolong Pharmaceuticals, LLC operates in Healthcare & Life Sciences and is based in South Plainfield, New Jersey. Its latest recorded funding round was a Grant round in November 2010.
Prolong Pharmaceuticals, LLC is a clinical-stage biopharmaceutical company developing therapies for ischemia and hypoxia in disorders like stroke, sickle cell disease, and cystic fibrosis.
Sector
Healthcare & Life Sciences
Verticals
Biotechnology, Drug Discovery, Clinical Trials
Business Model
B2B
Customer Profile
Government Contracts, Services & Consulting
AI Layer
Non-AI
Historical Pricing
Historical view of private secondary pricing and transaction trends.
Prolong Pharmaceuticals, LLC Comparables
Compare Prolong Pharmaceuticals, LLC with similar companies based on industry and business-model similarity.
| Company | Similarity | Market Cap |
|---|---|---|
| NuvOx Therapeutics | 86% | |
| HbO2 Therapeutics | 83% | |
| Pharmazz, Inc. | 81% |
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Prolong Pharmaceuticals, LLC Funding Rounds
Historical fundraising activity
| Round | Date | Amount Raised | Valuation | Investors | Sources |
|---|---|---|---|---|---|
| Grant | Nov 3, 2010 | ||||
| Series C | Oct 14, 2010 | ||||
| Early Funding | Apr 15, 2005 |
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Prolong Pharmaceuticals, LLC Investors
Notable investors and investment history
| Investor | Rounds |
|---|---|
| Avtar Investments | Series C |
| KBL Healthcare Ventures | Series C |
| Internal Revenue Service | Grant |
| Tarsadia Investments | Series C |
Market signals
Structured signals derived from secondary market and firmographic data.
- Sep 12, 2026
Monthly visitors grew 178% MoM, reaching 2.4K.
- Sep 2, 2026
Grew 22% QoQ, from 18 to 22 employees.
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Prolong Pharmaceuticals, LLC Filings
Explore SEC and related filing metadata, where available.
| Type | Date | Amount Offered | Amount Sold | Filing | Pages | Download |
|---|
Filing documents are not displayed on this public page. Request access to learn about available coverage.
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Frequently Asked Questions
Common questions about Prolong Pharmaceuticals, LLC's valuation, stock price, and market status.
Is Prolong Pharmaceuticals, LLC a public or private company?
Prolong Pharmaceuticals, LLC is a private company.
What is the current stock price of Prolong Pharmaceuticals, LLC?
Prolong Pharmaceuticals, LLC is a private company, so its shares have no public market price. Caplight tracks Prolong Pharmaceuticals, LLC's secondary market activity and provides MarketPrice™ estimates of its share price to Caplight users.
How much is Prolong Pharmaceuticals, LLC worth (valuation)?
Valuation information for Prolong Pharmaceuticals, LLC is not publicly available.
Can I buy Prolong Pharmaceuticals, LLC stock?
Prolong Pharmaceuticals, LLC shares may be available on secondary markets subject to transfer restrictions. Caplight facilitates secondary market transactions for accredited investors.
When was Prolong Pharmaceuticals, LLC's last funding round?
Prolong Pharmaceuticals, LLC's most recent funding round was Grant on November 3, 2010.
Who are the main investors in Prolong Pharmaceuticals, LLC?
Key investors in Prolong Pharmaceuticals, LLC include Avtar Investments, KBL Healthcare Ventures, Internal Revenue Service, Tarsadia Investments.
Will Prolong Pharmaceuticals, LLC IPO soon?
No public IPO plans have been announced for Prolong Pharmaceuticals, LLC.
How can I track Prolong Pharmaceuticals, LLC secondary market activity?
Caplight tracks bids, offers, and trades in Prolong Pharmaceuticals, LLC's shares on secondary markets.