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Enzon Pharmaceuticals, Inc. (ENZN) Stock Analysis

Educational signal · not a buy or sell recommendation · How to read this

DELISTED

What happened to Enzon Pharmaceuticals, Inc. (ENZN) stock?

Enzon Pharmaceuticals, Inc. (ENZN) no longer trades on public markets. The figures below are historical and are not a current quote.

Vol: 1.3K| 52-wk range: $4.00 – $33.80
Data from FMP · Methodology

For informational purposes only. Not financial advice. Machine-generated analysis by Stock Expert AI — model gemini-2.0-flash, generated Jun 1, 2026. Editorial oversight is systemic, not page-by-page. Editorially accountable: Sedat ANAK, Founder and Editor-in-Chief. Data sources: Financial Modeling Prep, Yahoo Finance, SEC EDGAR

Enzon Pharmaceuticals, Inc. (ENZN). Enzon Pharmaceuticals, Inc. focuses on marketing drug products, primarily PegIntron. The company also has a marketing agreement relating to Vicineum drug. Sector: Healthcare.

Last analyzed: Jun 1, 2026
Enzon Pharmaceuticals, Inc. focuses on marketing drug products, primarily PegIntron. The company also has a marketing agreement relating to Vicineum drug.

Analyst Coverage for ENZN: ENZN does not currently have published analyst price targets in our coverage universe. This is common for smaller-cap names with limited Wall Street coverage. In the absence of analyst consensus, our AI model evaluates ENZN against Healthcare peers across nine fundamental dimensions and assigns a neutral fundamental signal based on the underlying data.

Watch the ENZN film Every key number, told as a short cinematic story — just press play. ~2 min
Council Score · Weighted Average of 3 Disciplines
Bearish Lean 27/100 · F

ENZN: 2/2 scored disciplines lean bearish. Dominant signal: Seth Klarman bearish.

How is this calculated? →
Legends Council · 5 Legends + Moon AI

AI simulations built from the named investors' published principles. Not affiliated with, endorsed by, or the opinion of these individuals. How these lenses are built

Englander-style lens (simulated)Izzy Englander
Neutral read
Klarman-style lens (simulated)Seth Klarman
Unfavorable read
Moon AI lens (model)
Unfavorable read
Munger's Mindset · Balance Sheet & Valuation
Financial Health
Negative
Margin of Safety
Fairly Valued
Council Score · Weighted Average of 3 Disciplines · See tabs for details →
The lenses are modelled on the published principles of the investors named. We are not affiliated with them, they have not endorsed this, and it is not their opinion of this stock.

Enzon Pharmaceuticals, Inc. (ENZN) Healthcare & Pipeline Overview

CEORichard L. Feinstein
Employees1,582
HeadquartersCranford, US
IPO Year1984

Enzon Pharmaceuticals, Inc., founded in 1981, operates within the biotechnology sector, marketing drug products like PegIntron and holding a marketing agreement for Vicineum. With a small team, the company navigates the healthcare landscape, focusing on its existing pharmaceutical assets.

Data Provenance | Financial Data Quantitative Analysis Analysis: Jun 1, 2026

What Is the Investment Thesis for ENZN?

AI-written as of Jun 1, 2026 — figures and tone reflect the data available then, not today's score.

Enzon Pharmaceuticals, Inc. presents a focused investment case centered on its existing drug product, PegIntron, and its marketing agreement for Vicineum. With a market capitalization of $0.00 billion and a negative profit margin of -11.1%, the company's financial performance requires careful evaluation. Key value drivers include the continued revenue generation from PegIntron and the potential upside from the Vicineum agreement. Growth catalysts may arise from strategic partnerships or market expansions, while potential risks include competition from other pharmaceutical products and regulatory changes. Investors should closely monitor the company's ability to manage its operational costs and maximize the value of its existing assets. The company's beta of -0.05 suggests a low correlation with the broader market, which could offer some portfolio diversification benefits.

Based on FMP financials and quantitative analysis

ENZN Key Highlights

AI-written as of Jun 1, 2026 — figures and tone reflect the data available then, not today's score.

Market Cap of $0.00B indicates a small-cap company with limited market presence.

  • Profit Margin of -11.1% reflects challenges in achieving profitability.
  • Gross Margin of 9.8% suggests limited pricing power and high cost of goods sold.
  • Beta of -0.05 indicates a low correlation with the overall market, potentially offering diversification benefits.
  • The company's primary marketed drug product is PegIntron, representing a significant portion of its revenue.

Who Are ENZN's Competitors?

ENZN is benchmarked below against 8 industry peers on price, market cap, and our AI MoonshotScore.

Company Price Change Market Cap MoonshotScore
NVO Novo Nordisk A/S $44.01 -1.23% $195B 925-pillar
VRTX Vertex Pharmaceuticals Incorporated $514.90 +0.07% $131B 965-pillar
REGN Regeneron Pharmaceuticals, Inc. $793.26 -1.78% $81.7B 945-pillar
ARGX argenx SE $984.04 -1.82% $61.2B 975-pillar
UCBJY UCB S.A. $117.06 -1.42% $44.6B 679-signal
ALNY Alnylam Pharmaceuticals, Inc. $247.51 -4.07% $33.1B 895-pillar
RPRX Royalty Pharma plc $58.75 -3.04% $26.0B 725-pillar
INCY Incyte Corporation $121.47 -1.47% $24.6B 985-pillar

AI Score by Stock Expert AI · Price data: FMP / Yahoo Finance This table mixes two scoring engines — compare a number only with others carrying the same tag.

What Are ENZN's Key Strengths?

Marketed drug product (PegIntron).

  • Marketing agreement relating to Vicineum.
  • Established presence in the biotechnology sector.
  • Lean operational structure.

What Are ENZN's Weaknesses?

Limited product portfolio.

  • Negative profit margin.
  • Small market capitalization.
  • Reliance on a small number of employees.

What Could Drive ENZN Stock Higher?

Potential strategic partnerships to expand market reach.

  • Possible market expansion into new geographic regions.
  • Lifecycle management strategies for existing drugs.
  • Cost optimization initiatives to improve profitability.

What Are the Key Risks for ENZN?

Financial-distress signal — its Altman Z-Score of 0.66 sits in the distress zone (elevated bankruptcy risk).

  • Negative return on equity (-13.8%) — the business is not currently generating profit on shareholder capital.
  • Weak fundamentals — a Piotroski F-Score of 1/9 flags soft profitability, leverage or efficiency.
  • Competition from other pharmaceutical products.
  • Regulatory changes affecting drug approvals.
  • Patent expirations for key drugs.
  • Economic downturn impacting healthcare spending.
  • Limited liquidity due to OTC market trading.

What Are the Growth Opportunities for ENZN?

  • Strategic Partnerships: Enzon could explore strategic partnerships with other pharmaceutical companies to expand the market reach of PegIntron and Vicineum. Collaborating with larger firms could provide access to broader distribution networks and marketing resources, potentially increasing sales and revenue. The market for strategic partnerships in the pharmaceutical industry is substantial, with numerous deals occurring annually. A successful partnership could lead to a significant boost in Enzon's financial performance.
  • Market Expansion: Enzon could investigate opportunities to expand the market for its existing drugs into new geographic regions or patient populations. This could involve conducting clinical trials to demonstrate the efficacy of PegIntron and Vicineum in treating different conditions or patient demographics. The global market for pharmaceutical products is vast, and expanding into new markets could provide a significant growth opportunity for Enzon. This strategy would require careful planning and execution, but the potential rewards could be substantial.
  • Lifecycle Management: Enzon can focus on lifecycle management strategies for PegIntron to extend its market exclusivity and revenue stream. This could involve developing new formulations, dosages, or delivery methods for the drug. By innovating and improving upon its existing product, Enzon can maintain a competitive edge and continue to generate revenue even as patents expire. The market for lifecycle management strategies in the pharmaceutical industry is significant, with companies constantly seeking ways to extend the lifespan of their blockbuster drugs.
  • Acquisition of New Assets: Enzon could pursue the acquisition of new pharmaceutical assets to diversify its product portfolio and reduce its reliance on PegIntron and Vicineum. This could involve acquiring rights to new drugs, technologies, or intellectual property. By expanding its portfolio, Enzon can mitigate the risks associated with relying on a limited number of products. The market for pharmaceutical acquisitions is active, with numerous deals occurring annually. A successful acquisition could provide Enzon with new growth opportunities and enhance its long-term prospects.
  • Cost Optimization: Enzon can focus on optimizing its operational costs to improve its profitability and financial performance. This could involve streamlining its operations, reducing its expenses, and improving its efficiency. By reducing its costs, Enzon can increase its profit margins and generate more cash flow. The market for cost optimization strategies in the pharmaceutical industry is significant, with companies constantly seeking ways to reduce their expenses and improve their bottom line. A successful cost optimization program could significantly improve Enzon's financial health.

What Are ENZN's Competitive Advantages?

  • Existing marketing and distribution network for PegIntron.
  • Established relationships with healthcare providers.
  • Marketing agreement for Vicineum provides a revenue stream.

What Does ENZN Do?

Enzon Pharmaceuticals, Inc. was established in 1981 and is headquartered in Cranford, New Jersey. The company operates in the biotechnology sector, primarily focusing on marketing its existing drug products. Enzon's main marketed product is PegIntron, a drug used in the treatment of certain medical conditions. Additionally, the company has a marketing agreement related to Vicineum, another pharmaceutical product. Over the years, Enzon has evolved from a research-driven entity to one that concentrates on commercializing its existing portfolio. The company's strategy involves managing its current assets and seeking opportunities to maximize their value. Enzon's operations are primarily based in the United States, and it navigates the competitive landscape of the biotechnology industry by focusing on its niche products and marketing agreements. With a small number of employees, Enzon operates with a lean structure, emphasizing efficiency in its commercial activities.

What Products and Services Does ENZN Offer?

  • Markets the drug product PegIntron.
  • Maintains a marketing agreement relating to Vicineum.
  • Focuses on commercializing its existing portfolio of pharmaceutical assets.
  • Manages its current assets to maximize their value.
  • Operates primarily in the United States.
  • Navigates the competitive landscape of the biotechnology industry.

How Does ENZN Make Money?

  • Generates revenue through the sale of PegIntron.
  • Receives income from its marketing agreement related to Vicineum.
  • Focuses on managing and commercializing its existing pharmaceutical assets.
  • Operates with a lean structure to emphasize efficiency in its commercial activities.

What Industry Does ENZN Operate In?

Enzon Pharmaceuticals, Inc. operates within the biotechnology industry, a sector characterized by intense competition and rapid innovation. The market includes both large pharmaceutical companies and smaller biotech firms, all vying for market share. Enzon's focus on marketing existing drug products positions it as a niche player in this landscape. The biotechnology industry is driven by advancements in medical science, increasing healthcare spending, and regulatory approvals. However, it also faces challenges such as high research and development costs, patent expirations, and regulatory hurdles. Enzon's ability to navigate these challenges will be crucial for its long-term success.

Who Are ENZN's Key Customers?

  • Patients who require treatment with PegIntron.
  • Healthcare providers who prescribe PegIntron.
  • Partners involved in the marketing and distribution of Vicineum.
Model self-rating on this text: 64% (not a measure of the evidence) Updated: Jun 1, 2026

Research confidence

Low 37/100

Thin evidence — scoring coverage unknown. Treat this as a starting point, not a conclusion.

  • Scoring coverage unknown
  • Price 5 days old
  • Latest filing 39 days ago
  • No analyst coverage

MoonshotScore History

Recorded daily since 2026-08-23 · 4 snapshots

2026-08-23 42
2026-08-24 42
2026-08-25 42
2026-08-26 42

What changed?

The score has stayed at 42.

Over the same 3 days the stock moved +0.0%.

Enzon Pharmaceuticals, Inc. Financial Trajectory

Enzon Pharmaceuticals, Inc. (ENZN) reported $90.1M in revenue for Q2 FY2026, reflecting 4.2% growth compared to the prior quarter. The company recorded a net loss of $5.1M, with diluted EPS of $-0.35.

Company Profile

Enzon Pharmaceuticals, Inc. operates in the Packaging & Containers industry within the Consumer Cyclical sector. It is headquartered in Lombard, US. The company is led by CEO Thomas Dale Davis. ENZN has traded publicly since 1984.

ROE -14%

Key Financial Metrics

Return on equity for Enzon Pharmaceuticals, Inc. stands at -13.8%, a gauge of how efficiently it converts shareholder capital into profit. Return on assets is -2.2%, showing how much profit it generates from its asset base. A current ratio of 2.01 indicates the company holds enough short-term assets to cover its near-term obligations. Its earnings yield is -24.2%, the inverse of the P/E and a quick read on earnings relative to price.

F-Score 1/9

Financial Health

Enzon Pharmaceuticals, Inc.'s Piotroski F-Score is 1/9, a 9-point checklist of profitability, leverage and efficiency — flagging fundamental weakness worth scrutiny. Its Altman Z-Score of 0.66 places it in the distress zone, a signal of elevated financial risk.

Net buying

Insider Activity

The most recent 9 insider filings for Enzon Pharmaceuticals, Inc. break down as 2 sales and 7 purchases. On net that is roughly 29.7M shares acquired (about $32.2B) — insiders putting money in tends to read as conviction.

ENZN Financials

Fundamental Snapshot

Revenue Growth (FY)
-100.0%
Free Cash Flow Growth (FY)
-368.3%
Return on Equity (TTM)
-13.8%
Current Ratio
2.0

Based on FMP financials and quantitative analysis · FY 2025

Bull Case vs Bear Case

Bull Case

  • Marketed drug product (PegIntron).
  • Marketing agreement relating to Vicineum.
  • Established presence in the biotechnology sector.
  • Lean operational structure.

Bear Case

  • Limited product portfolio.
  • Negative profit margin.
  • Small market capitalization.
  • Reliance on a small number of employees.

AI-generated arguments based on insider flow, news sentiment and technicals — not financial advice · June 2026

Recent Quarterly Results

Quarter Revenue Net Income EPS
Q2 FY2026 $90M -$5M -$0.35
Q1 FY2026 $87M -$7M -$0.84

Q2 FY2026 · filed 3 Aug 2026 · SEC EDGAR →

Based on FMP financials and quantitative analysis

ENZN Latest News

Leadership: Richard L. Feinstein

CEO

Richard L. Feinstein currently serves as CEO of Enzon Pharmaceuticals, Inc. His background includes experience in managing pharmaceutical companies and overseeing the commercialization of drug products. He is responsible for guiding Enzon's strategic direction and overseeing its day-to-day operations. His leadership is focused on maximizing the value of Enzon's existing assets and exploring opportunities for growth. He manages a small team of employees and works to ensure the company's efficient operation.

Track Record: Under Richard L. Feinstein's leadership, Enzon Pharmaceuticals, Inc. has focused on marketing its existing drug product, PegIntron, and managing its marketing agreement for Vicineum. Key milestones include maintaining revenue streams from these assets and navigating the competitive landscape of the biotechnology industry. His strategic decisions have centered on optimizing operational costs and seeking opportunities to enhance the value of Enzon's portfolio.

ENZN OTC Market Information

The OTC Other tier represents the lowest tier of the OTC market, indicating that Enzon Pharmaceuticals, Inc. may not meet the minimum financial standards or disclosure requirements of higher tiers like OTCQX or OTCQB. Companies in this tier often have limited trading volume and may not be subject to the same level of regulatory oversight as companies listed on major exchanges like the NYSE or NASDAQ. Investing in companies on the OTC Other tier carries a higher degree of risk due to the potential for limited information and liquidity.

  • OTC Tier: OTC Other
Liquidity: Liquidity for ENZN on the OTC market is likely very limited. As an OTC Other stock with a small market cap, bid-ask spreads are probably wide, and it may be difficult to buy or sell shares quickly without significantly affecting the price. Low trading volume could also make it challenging to establish or exit a position, further increasing the risk for investors.
OTC Risk Factors:
  • Limited liquidity due to low trading volume on the OTC market.
  • Lack of regulatory oversight compared to major exchanges.
  • Potential for information asymmetry due to limited disclosure.
  • Higher risk of price manipulation and fraud.
  • Uncertainty regarding the company's long-term viability.
Due Diligence Checklist:
  • Verify the company's legal status and registration.
  • Assess the availability and reliability of financial information.
  • Evaluate the company's management team and their track record.
  • Determine the company's compliance with regulatory requirements.
  • Analyze the company's business model and competitive landscape.
  • Assess the liquidity and trading volume of the stock.
  • Understand the risks associated with investing in OTC stocks.
Legitimacy Signals:
  • The company was founded in 1981, indicating a long operating history.
  • Enzon has a marketed drug product (PegIntron).
  • The company has a marketing agreement relating to Vicineum.
  • Richard L. Feinstein serves as the CEO.

What Investors Ask About Enzon Pharmaceuticals, Inc. (ENZN) — Healthcare

What happened to Enzon Pharmaceuticals, Inc. (ENZN) stock?

Enzon Pharmaceuticals, Inc. (ENZN) no longer trades on public markets. The figures below are historical and are not a current quote.

Can I still buy ENZN shares?

No. ENZN stopped trading on public markets, so the shares are not available through a broker. Anything you see quoted for ENZN elsewhere is historical data, not a live market.

Are the figures on this page current?

No. Every number here is the last value recorded before ENZN stopped trading. Nothing on this page updates, and none of it is a current quote.

Why does this page still exist?

Because people still search for what happened to Enzon Pharmaceuticals, Inc.. An archived profile that states the delisting plainly is more useful than a dead link — provided it is labelled as history, which is what this page does.

What does Enzon Pharmaceuticals, Inc. do?

Enzon Pharmaceuticals, Inc. is a biotechnology company that focuses on marketing its existing drug products. Its primary marketed product is PegIntron, and it also has a marketing agreement related to Vicineum.

What do analysts say about ENZN stock?

Given Enzon Pharmaceutical's small market capitalization and OTC listing, formal analyst coverage is unlikely. Investors must conduct their own thorough due diligence, focusing on financial statements (if available), the prospects for PegIntron and Vicineum, and the risks inherent in OTC-traded securities.

What are the main risks for ENZN?

Enzon Pharmaceuticals, Inc. faces several risks, including competition from other pharmaceutical products, regulatory changes affecting drug approvals, and patent expirations for its key drugs.

Disclaimer: This content is for informational purposes only and does not constitute investment advice. Always do your own research and consult a financial advisor.

Official Resources

Analysis updated
Data Sources & Methodology
Market data powered by Financial Modeling Prep & Yahoo Finance. AI analysis by Stock Expert AI proprietary algorithms. Technical indicators via industry-standard calculations. Last updated: .
Data Provenance
Sources: Financial Modeling Prep (FMP) — Primary · Yahoo Finance — Fallback · Alpaca — Tertiary
Last fetched:
Cache TTL: Quote 5min · Profile 7d · Financials 7d · Insider 48h
How we use AI: Numbers are pulled directly from FMP & Yahoo Finance — our AI writes the analysis, it never edits the figures.
Data provided as-is for educational purposes. Not financial advice. Methodology

Data provided for informational purposes only.

Analysis Notes
  • Information is based on available data and may be limited due to the company's OTC status and limited disclosure.
Data Sources
Financial Modeling Prep (FMP)Stock Expert AI proprietary analysis

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