Aridis Pharmaceuticals (ARDS) Stock Price, News & Analysis

Company Overview

Aridis Pharmaceuticals is a San Diego–based clinical-stage biotechnology company dedicated to developing immunotherapeutic products for the prevention and treatment of life-threatening bacterial and fungal infections. The company’s technology platform leverages monoclonal antibodies and inhaled antifungal formulations to address antibiotic-resistant respiratory pathogens and emerging inhalational threats. Aridis’ research focuses on targeting key virulence factors in organisms such as Pseudomonas aeruginosa and Staphylococcus aureus, with the aim of delivering novel therapeutic approaches for hospital-acquired and ventilator-associated pneumonias, catheter-related bloodstream infections and deep fungal infections of the lung.

Among the company’s pipeline candidates, AR-310 is a first-in-class inhaled monoclonal antibody against Pseudomonas aeruginosa, designed for both prophylactic and therapeutic use in patients with cystic fibrosis and those at high risk of ventilator-associated pneumonia. AR-301 is an anti–alpha-toxin antibody targeting Staphylococcus aureus bloodstream infections and antibiotic-resistant strains. AR-501, a human immunoglobulin G designed to neutralize Pseudomonas toxins, is in early-stage development for the prevention of recurrent infections. In parallel, Aridis’ inhaled liposomal amphotericin B formulation advances as a treatment for invasive pulmonary fungal infections, offering targeted delivery with reduced systemic exposure.

Aridis collaborates with U.S. government agencies, including the Biomedical Advanced Research and Development Authority (BARDA), and participates in global public–private partnerships to accelerate development of countermeasures against antimicrobial resistance. The company’s clinical trials span multiple geographies across North America and Europe, with regulatory filings planned in key markets. Aridis’ leadership team comprises seasoned biopharmaceutical executives and clinical development experts guiding the company through pivotal studies and toward potential regulatory approvals.

Key Stats

• Today's Range: $0.0015 to $0.0015
• 50-Day Range: N/A
• 52-Week Range: $0.00 to $0.05
• Volume: 2 shs
• Average Volume: 23,256 shs
• Market Capitalization: $77.32 thousand
• P/E Ratio: N/A
• Dividend Yield: N/A
• Price Target: N/A
• Consensus Rating: N/A

Aridis Pharmaceuticals Stock Analysis - MarketRank™

Aridis Pharmaceuticals scored higher than 2% of companies evaluated by MarketBeat. Scores are calculated by averaging available category scores, with extra weight given to analysis and valuation.

Analyst's Opinion

• Score: N/A
• Analyst Rating: N/A

Consensus Rating

There is not enough analysis data for Aridis Pharmaceuticals.

Earnings and Valuation

• Score: 0.0 / 5
• Proj. Earnings Growth: N/A

Price to Earnings Ratio vs. the Market

The P/E ratio of Aridis Pharmaceuticals is -0.01, which means that its earnings are negative and its P/E ratio cannot be compared to companies with positive earnings.

Price to Earnings Ratio vs. Sector

The P/E ratio of Aridis Pharmaceuticals is -0.01, which means that its earnings are negative and its P/E ratio cannot be compared to companies with positive earnings.

Short Interest

• Score: 3.0 / 5
• Short Interest Level: Healthy

Percentage of Shares Shorted

0.05% of the outstanding shares of Aridis Pharmaceuticals have been sold short.

Short Interest Ratio / Days to Cover

Aridis Pharmaceuticals has a short interest ratio ("days to cover") of 0.8, which is generally considered an acceptable ratio of short interest to trading volume.

Change versus previous month

Dividend

• Score: 0.0 / 5
• Dividend Strength: N/A

Dividend Yield

Aridis Pharmaceuticals does not currently pay a dividend.

Dividend Growth

Aridis Pharmaceuticals does not have a long track record of dividend growth.

Sustainability and ESG

• Score: N/A
• Environmental Score: N/A

Percentage of Shares Shorted

0.05% of the outstanding shares of Aridis Pharmaceuticals have been sold short.

Short Interest Ratio / Days to Cover

Aridis Pharmaceuticals has a short interest ratio ("days to cover") of 0.8, which is generally considered an acceptable ratio of short interest to trading volume.

Change versus previous month

News and Social Media

• Score: 0.6 / 5
• News Sentiment: N/A

Search Interest

1 people have searched for ARDS on MarketBeat in the last 30 days.

Company Ownership

• Score: 0.0 / 5
• Insider Trading: N/A

Insider Buying vs. Insider Selling

In the past three months, Aridis Pharmaceuticals insiders have not sold or bought any company stock.

Percentage Held by Insiders

Only 5.50% of the stock of Aridis Pharmaceuticals is held by insiders.

Percentage Held by Institutions

Only 9.65% of the stock of Aridis Pharmaceuticals is held by institutions.

ARDS Stock Analysis - Frequently Asked Questions

How have ARDS shares performed this year?

Aridis Pharmaceuticals' stock was trading at $0.0001 on January 1st, 2025. Since then, ARDS shares have increased by 1,350.0% and is now trading at $0.0015.

How were Aridis Pharmaceuticals' earnings last quarter?

Aridis Pharmaceuticals, Inc. (NASDAQ:ARDS) announced its earnings results on Wednesday, November, 10th. The company reported ($1.94) earnings per share for the quarter, missing the consensus estimate of ($0.51) by $1.43. The firm earned $0.52 million during the quarter.

When did Aridis Pharmaceuticals IPO?

Aridis Pharmaceuticals (ARDS) raised $28 million in an initial public offering (IPO) on Tuesday, August 14th 2018. The company issued 2,000,000 shares at $13.00-$15.00 per share. Cantor acted as the underwriter for the IPO and Maxim Group and Northland Capital Markets were co-managers.

How do I buy shares of Aridis Pharmaceuticals?

Shares of ARDS stock can be purchased through any online brokerage account. Popular online brokerages with access to the U.S. stock market include Charles Schwab, E*TRADE, Fidelity, and Vanguard Brokerage Services.

What other stocks do shareholders of Aridis Pharmaceuticals own?

Based on aggregate information from My MarketBeat watchlists, some other companies that Aridis Pharmaceuticals investors own include VBI Vaccines (VBIV), Cidara Therapeutics (CDTX), Dare Bioscience (DARE), BioCardia (BCDA), Moleculin Biotech (MBRX), SCYNEXIS (SCYX) and Inovio Pharmaceuticals (INO).

Company Calendar

• Last Earnings: 11/10/2021
• Today: 10/25/2025
• Fiscal Year End: 12/31/2025

Industry, Sector and Symbol

• Stock Exchange: NASDAQ
• Sector: Medical
• Industry: Pharmaceutical preparations
• Sub-Industry: Pharmaceutical Products
• Current Symbol: NASDAQ:ARDS
• CIK: 1614067
• Web: www.aridispharma.com
• Phone: (408) 385-1742
• Fax: 408-960-3822
• Employees: 30
• Year Founded: 2003

Profitability

• EPS (Trailing Twelve Months): N/A
• Trailing P/E Ratio: N/A
• Forward P/E Ratio: N/A
• P/E Growth: N/A
• Net Income: N/A
• Net Margins: N/A
• Pretax Margin: N/A
• Return on Equity: N/A
• Return on Assets: N/A

Debt

• Debt-to-Equity Ratio: N/A
• Current Ratio: N/A
• Quick Ratio: N/A

Sales & Book Value

• Annual Sales: N/A
• Price / Sales: N/A
• Cash Flow: N/A
• Price / Cash Flow: N/A
• Book Value: N/A
• Price / Book: N/A

Miscellaneous

• Outstanding Shares: 53,321,000
• Free Float: 50,388,000
• Market Cap: $77.32 thousand
• Optionable: Not Optionable
• Beta: 38.37