Spero Therapeutics Inc Stock (SPRO) Price History
The historical daily chart and data for Spero Therapeutics Inc stock (SPRO), show that the latest closing stock price as of November 12, 2026, is $1.00.
- Spero Therapeutics Inc all-time high stock price is $23.64, occurred on December 28, 2020.
- The lowest Spero Therapeutics Inc stock price recorded was $0.5052 on April 09, 2025. Since then, Spero Therapeutics Inc's stock price has risen over 49.48% to $1.00 now.
- The 52-week high stock price for SPRO is $3.08, representing a 208.00% increase from the current share price, occurred on May 27, 2026.
- The 52-week low stock price for SPRO is $0.961, indicating a 3.90% decrease from the current share price, occurred on November 05, 2026.
- The closing price of Spero Therapeutics Inc (SPRO) stock in the beginning of 2025 was $1.08. The stock closed the year at $2.33, a gain of over 115.74% for the year.
The table below shows more information about SPRO historical price data:
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Spero Therapeutics Inc Stock (SPRO) Year by Year Price History
In this detailed analysis, we present a comprehensive overview of the price movements of Spero Therapeutics Inc stock over the years. By exploring the year-by-year data, investors can gain valuable insights into the historical performance and volatility of SPRO shares. From significant milestones and fluctuations to notable trends, this in-depth examination of Spero Therapeutics Inc stock price history provides a foundation for understanding how the company's stock has evolved over time.