SPRO
Spero Therapeutics Inc
1.20$
-2.5%
vs. previous close
Closing price · As of: Oct 5, 2026
Statements
Income Statement
All figures as the change versus the prior period, in percent. Periods without a positive comparison base stay empty.
Tick rows to compare them in a chart (up to 4)
| Line item | Q3 16 | Q4 16 | Q1 17 | Q2 17 | Q3 17 | Q4 17 | Q1 18 | Q2 18 | Q3 18 | Q4 18 | Q1 19 | Q2 19 | Q3 19 | Q4 19 | Q1 20 | Q2 20 | Q3 20 | Q4 20 | Q1 21 | Q2 21 | Q3 21 | Q4 21 | Q1 22 | Q2 22 | Q3 22 | Q4 22 | Q1 23 | Q2 23 | Q3 23 | Q4 23 | Q1 24 | Q2 24 | Q3 24 | Q4 24 | Q1 25 | Q2 25 | Q3 25 | Q4 25 | Q1 26 | Q2 26 | LTM* |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| – | – | -58.2% | +77.9% | +139.8% | +0.0% | +93.1% | -59.8% | +42.1% | +157.1% | +125.0% | -43.4% | -92.0% | +2,010.5% | -53.1% | +1.5% | +131.3% | -52.3% | +282.8% | -71.2% | -66.4% | +287.6% | -91.0% | +262.8% | +20.8% | +4,184.1% | -95.5% | +31.3% | +837.9% | +188.6% | -94.3% | +142.6% | +32.1% | +11.7% | -61.0% | +100.9% | -74.2% | +1,201.1% | -99.3% | -100.0% | – | |
| – | +15.6% | -15.5% | +35.0% | +1.3% | +42.3% | -40.1% | -17.4% | +14.7% | +7.9% | +4.4% | +26.2% | +53.8% | +39.1% | -20.6% | – | – | – | – | – | – | – | – | – | -9.9% | -95.1% | +2,387.3% | +5.9% | -93.5% | +7,886.1% | -110.2% | – | -100.0% | +4,731,600.0% | -85.6% | – | – | – | – | – | – | |
| – | – | -58.2% | +77.9% | +139.8% | -4,260.2% | – | -59.8% | +42.1% | +157.1% | +125.0% | -43.4% | -92.0% | -12,947.7% | – | – | -893.9% | – | -682.3% | – | -66.4% | -2,145.3% | – | +262.8% | +20.8% | +4,184.1% | -114.9% | – | – | -3.1% | -82.5% | -421.8% | – | -690.9% | – | – | -74.2% | +1,201.1% | -99.3% | – | – | |
| – | +15.4% | -13.4% | +24.3% | -7.3% | +0.0% | +29.2% | -17.4% | +14.7% | +7.9% | +4.4% | +26.2% | +53.8% | +48.8% | -25.0% | -24.1% | +13.1% | -25.4% | +39.4% | -21.4% | -0.2% | +20.0% | -2.0% | -51.8% | -9.9% | +105.0% | -40.5% | +5.9% | +72.4% | +1.0% | +4.7% | +36.9% | +13.2% | +7.3% | -52.8% | -21.6% | -19.4% | -35.0% | -48.0% | +18.0% | – | |
| – | +16.2% | -21.6% | +69.9% | +23.5% | +0.0% | -16.7% | +0.5% | +2.4% | +16.4% | +6.5% | -2.7% | +9.3% | -28.3% | +37.9% | +11.3% | +16.8% | +41.2% | +10.7% | +11.2% | +20.8% | +9.4% | +25.5% | -47.4% | -17.6% | -2.1% | +12.7% | -16.7% | -6.4% | +2.8% | +0.9% | -6.5% | -6.1% | +20.5% | +8.9% | -13.9% | -29.0% | +3.0% | +13.7% | +32.8% | – | |
| – | +15.6% | -16.9% | +33.8% | -2.0% | +6.0% | +2.4% | -7.8% | +9.7% | +1.4% | -14.3% | +66.3% | +14.9% | -79.2% | +8.0% | +394.4% | -73.7% | +290.0% | -59.9% | +148.8% | +12.5% | -44.0% | +133.9% | -11.4% | -52.1% | +58.2% | -64.2% | -16.7% | +339.4% | -198.7% | – | -69.6% | +479.5% | -280.5% | – | +103.5% | -23.0% | -24.7% | -5.5% | +27.3% | – | |
| – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | -154.9% | – | – | – | -127.7% | – | – | – | – | – | – | – | -124.0% | – | – | |
| – | – | +175.0% | -100.0% | – | -100.0% | – | -91.3% | +3,046.7% | +142.4% | -45.5% | -19.6% | -46.6% | -75.4% | – | – | – | – | – | – | – | – | +28.2% | -95.3% | +77.8% | -98.8% | +39,991.8% | -100.0% | – | – | – | – | – | – | – | – | – | – | – | – | – | |
| – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | -149.6% | – | – | – | -124.6% | – | – | – | – | – | – | – | -122.7% | – | – | |
| – | – | – | – | – | – | – | -100.0% | – | – | – | – | – | – | -313.5% | – | – | – | – | – | – | – | +35.2% | -95.9% | -121.5% | – | -48,635.4% | – | – | -82.5% | -123.7% | – | – | – | – | – | – | – | – | – | – | |
| – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | -149.6% | – | – | – | -124.7% | – | – | – | – | – | – | – | -122.9% | – | – | |
| – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | -148.9% | – | – | +1,383.2% | -124.5% | – | – | – | – | – | – | – | -122.7% | – | – |
LTM = last twelve months (sum of the four most recent quarters).
Showing the most recent 40 periods — older statements are on file for this stock.
Data as of: October 5, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.