Company / Book Value per Share
Spero Therapeutics, Inc. Book Value per Share History
FY2018-FY2025 · Annual data · Source: SEC filings
At a glance
Latest annual filing availableLatest Book Value per Share
$0.845
FY2025
5-year range
$0.845 / $4.513
FY2021-FY2025
Trend
-58.1%
vs FY2024
Sector context
Sector data unavailable
Latest sector comparison
What the data says
Book Value per Share has fluctuated over the past 8 years, ranging from $0.845 in FY2025 to $8.038 in FY2018.
Based on SEC 10-K filings.
$0.845 in FY2025 with a 5-year CAGR of -26.3%.
Declined from $1.448 to $0.845 over the past 2 years.
Book Value per Share over time
Growth rates
- 3-Year CAGR
- -32.3%
- 5-Year CAGR
- -26.3%
- 10-Year CAGR
- -
Key checks
Key Insights
- 5-year CAGR of -26.3%, indicating a declining trend.
- In FY2025, book value per share decreased 58.1% year-over-year.
- Peak book value per share was recorded in FY2018.
Company context
Key Data Points
- Low Piotroski F-Score: 2/9 (multiple financial health concerns)
- Altman Z-Score -1.15 (distress zone, below 1.8 threshold)
- High earnings quality (cash-backed earnings)
Data sourced from SEC EDGAR filings. Not investment advice.
Annual data
| Year | Book Value per ShareValue | YoY GrowthYoY |
|---|---|---|
| FY2025 | $0.845 | -58.1% |
| FY2024 | $2.017 | +39.3% |
| FY2023 | $1.448 | -46.9% |
| FY2022 | $2.725 | -39.6% |
| FY2021 | $4.513 | +16.1% |
| FY2020 | $3.886 | -10.3% |
| FY2019 | $4.334 | -46.1% |
| FY2018 | $8.038 | - |
As of FY2025 · SEC 10-K · Updated Jun 28, 2026