Price Move History
- Daily moves over 5%
- 17 26 sessions, September 15, 2025 to October 22, 2026
- Largest daily move
- -80% close of March 13, 2026
- 1-year change
- -91.3% closing prices, September 15, 2025 to October 22, 2026
- 1-month change
- -55.7% closing prices, August 19, 2026 to October 22, 2026
Company Description
IMMUTEP LTD ORD (PRRUF) refers to ordinary shares of Immutep Limited, a foreign private issuer that files reports with the U.S. Securities and Exchange Commission. The company submits current reports on Form 6-K under the Securities Exchange Act of 1934, indicating that it provides periodic updates to U.S. investors in connection with its listing and reporting obligations.
Immutep Limited is organized outside the United States and has identified its principal executive office in Sydney, New South Wales, Australia. As a foreign issuer, it uses Form 20-F as its primary annual reporting format with the SEC, as indicated by its selection of Form 20-F status in its filings. The PRRUF symbol represents access to the company’s ordinary shares for investors who follow its disclosures through U.S. regulatory channels.
Regulatory reporting framework
According to its SEC disclosures, Immutep Limited furnishes reports on Form 6-K pursuant to Rules 13a-16 or 15d-16 under the Securities Exchange Act of 1934. These filings allow the company to provide information that it makes public in its home market or that it is required to file with a foreign stock exchange or foreign regulator. The company also indicates that it does not rely on the Rule 12g3-2(b) exemption, as reflected in its Form 6-K check-box responses.
Immutep’s filings may include exhibits that describe operational or research-related developments. For example, one Form 6-K references an exhibit describing a research collaboration involving the evaluation of a neoadjuvant treatment approach, illustrating that the company uses its SEC reports to communicate scientific or clinical research collaborations to investors.
Location and corporate form
The company identifies its principal executive office as being located in Sydney, in the state of New South Wales, Australia. This confirms that Immutep Limited operates as an Australia-based entity while maintaining a presence in U.S. capital markets through its foreign issuer reporting status. The reference to ordinary shares in the PRRUF designation reflects that investors are dealing with the company’s standard equity securities.
Use of Form 6-K and exhibits
Form 6-K filings by Immutep Limited can contain a variety of exhibits, including announcements of collaborations and other material information. In one such filing, the exhibit list includes an item describing a research collaboration with the George Washington University Cancer Center to evaluate a neoadjuvant treatment referred to as efti. This demonstrates that the company’s SEC reports can provide insight into its research-related activities and partnerships.
Investor considerations
For investors following PRRUF, the SEC reporting framework used by Immutep Limited offers a structured way to review information that the company furnishes to the U.S. market. Form 6-K current reports and Form 20-F annual reports are central to understanding the disclosures the company chooses to provide as a foreign private issuer. These documents, together with any attached exhibits, form the primary source of publicly available regulatory information about the company for U.S.-based investors.
Stock Performance
IMMUTEP (PRRUF) closed at $0.0168 on October 22, 2026. Over the past 12 months, the price has lost 91.3%.
PRRUF Metrics & Rankings
Price returns through October 22, 2026. Month-to-date and YTD include the first trading day. Ranking links may use different dates.
Latest News
SEC Filings
IMMUTEP has filed 10 recent SEC filings, including 7 Form 6-K, 2 Form 3, 1 Form 20-F. The most recent filing was submitted on October 29, 2026. SEC filings provide transparency into a company's financial condition, material events, and regulatory compliance. View all PRRUF SEC filings →
Short Interest History
Short interest in IMMUTEP (PRRUF) currently stands at 15.3 million shares, up 0.3% from the previous reporting period, representing 1.1% of the float. Since October 2025, short interest has increased by 4152.2%.
Days to Cover History
Days to cover for IMMUTEP (PRRUF) currently stands at 1000.0 days. The ratio is the reported short interest divided by the average daily trading volume. Since October 2025, the figure has increased by 38.7%. Across the settlements charted above, it has ranged from 8.6 to 1000.0 days.
PRRUF Company Profile & Sector Positioning
IMMUTEP (PRRUF) operates in the Biotechnology industry within the broader Healthcare sector and is listed on the OTC.