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Side-by-side financial comparison of Spero Therapeutics, Inc. (SPRO) and UR-ENERGY INC (URG). Click either name above to swap in a different company.

Spero Therapeutics, Inc. is the larger business by last-quarter revenue ($12.6M vs $6.3M, roughly 2.0× UR-ENERGY INC). Spero Therapeutics, Inc. runs the higher net margin — 250.7% vs -434.3%, a 685.0% gap on every dollar of revenue. On growth, Spero Therapeutics, Inc. posted the faster year-over-year revenue change (24080.8% vs -1.2%).

UR-Energy Inc. is a specialized uranium mining firm that uses low-environmental-impact in-situ recovery extraction technology. It operates assets in the western United States, supplying uranium concentrate to nuclear power utilities across North America and global markets to support clean energy production.

SPRO vs URG — Head-to-Head

Bigger by revenue
SPRO
SPRO
2.0× larger
SPRO
$12.6M
$6.3M
URG
Growing faster (revenue YoY)
SPRO
SPRO
+24082.0% gap
SPRO
24080.8%
-1.2%
URG
Higher net margin
SPRO
SPRO
685.0% more per $
SPRO
250.7%
-434.3%
URG

Income Statement — Q4 FY2025 vs Q3 FY2025

Metric
SPRO
SPRO
URG
URG
Revenue
$12.6M
$6.3M
Net Profit
$31.5M
$-27.5M
Gross Margin
Operating Margin
-313.3%
Net Margin
250.7%
-434.3%
Revenue YoY
24080.8%
-1.2%
Net Profit YoY
250.9%
-243.2%
EPS (diluted)
$0.56
$-0.07

Green = leading value per metric. Periods may differ when fiscal calendars don't align.

8-Quarter Revenue & Profit Trend

Side-by-side quarterly history. Quarters aligned by calendar period so offset fiscal years line up.

Revenue
SPRO
SPRO
URG
URG
Q4 25
$12.6M
Q3 25
$0
$6.3M
Q2 25
$0
$10.4M
Q1 25
$12.0K
Q4 24
$52.0K
$22.7M
Q3 24
$65.0K
$6.4M
Q2 24
$114.0K
$4.7M
Q1 24
$140.0K
$0
Net Profit
SPRO
SPRO
URG
URG
Q4 25
$31.5M
Q3 25
$-7.4M
$-27.5M
Q2 25
$-1.7M
$-21.0M
Q1 25
$-13.9M
Q4 24
Q3 24
$-17.1M
$-8.0M
Q2 24
$-17.9M
$-6.6M
Q1 24
$-12.7M
$-18.5M
Gross Margin
SPRO
SPRO
URG
URG
Q4 25
Q3 25
Q2 25
18.6%
Q1 25
Q4 24
Q3 24
12.3%
Q2 24
28.5%
Q1 24
Operating Margin
SPRO
SPRO
URG
URG
Q4 25
Q3 25
-313.3%
Q2 25
-151.1%
Q1 25
-122758.3%
Q4 24
Q3 24
-28604.6%
-185.4%
Q2 24
-16720.2%
-245.2%
Q1 24
-9987.1%
Net Margin
SPRO
SPRO
URG
URG
Q4 25
250.7%
Q3 25
-434.3%
Q2 25
-200.8%
Q1 25
-115550.0%
Q4 24
Q3 24
-26380.0%
-125.0%
Q2 24
-15668.4%
-141.5%
Q1 24
-9049.3%
EPS (diluted)
SPRO
SPRO
URG
URG
Q4 25
$0.56
Q3 25
$-0.13
$-0.07
Q2 25
$-0.03
$-0.06
Q1 25
$-0.25
Q4 24
Q3 24
$-0.32
$-0.02
Q2 24
$-0.33
$-0.02
Q1 24
$-0.24
$-0.07

Balance Sheet & Financial Strength

Snapshot of each company's liquidity, leverage and book value from the latest quarter.

Metric
SPRO
SPRO
URG
URG
Cash + ST InvestmentsLiquidity on hand
$40.3M
$52.0M
Total DebtLower is stronger
Stockholders' EquityBook value
$59.0M
$90.7M
Total Assets
$68.9M
$170.9M
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
SPRO
SPRO
URG
URG
Q4 25
$40.3M
Q3 25
$48.6M
$52.0M
Q2 25
$31.2M
$57.6M
Q1 25
$48.9M
Q4 24
$52.9M
$76.1M
Q3 24
$76.3M
$118.5M
Q2 24
$63.5M
$61.3M
Q1 24
$82.3M
$53.9M
Stockholders' Equity
SPRO
SPRO
URG
URG
Q4 25
$59.0M
Q3 25
$26.5M
$90.7M
Q2 25
$32.8M
$102.1M
Q1 25
$33.8M
Q4 24
$46.1M
$132.8M
Q3 24
$65.5M
$152.1M
Q2 24
$80.5M
$92.8M
Q1 24
$96.2M
$76.9M
Total Assets
SPRO
SPRO
URG
URG
Q4 25
$68.9M
Q3 25
$54.2M
$170.9M
Q2 25
$62.1M
$171.3M
Q1 25
$77.7M
Q4 24
$110.5M
$194.1M
Q3 24
$135.2M
$201.4M
Q2 24
$149.9M
$140.6M
Q1 24
$167.7M
$124.9M

Cash Flow & Capital Efficiency

How much cash each business actually produces after reinvestment. Cash flow is harder to manipulate than net income.

Metric
SPRO
SPRO
URG
URG
Operating Cash FlowLast quarter
$-8.4M
$-15.0M
Free Cash FlowOCF − Capex
$-20.4M
FCF MarginFCF / Revenue
-322.5%
Capex IntensityCapex / Revenue
84.5%
Cash ConversionOCF / Net Profit
-0.26×
TTM Free Cash FlowTrailing 4 quarters
$-129.2M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
SPRO
SPRO
URG
URG
Q4 25
$-8.4M
Q3 25
$17.4M
$-15.0M
Q2 25
$-17.7M
$-12.1M
Q1 25
$-4.0M
Q4 24
$-23.4M
$-71.9M
Q3 24
$12.8M
$-6.8M
Q2 24
$-18.7M
$-11.3M
Q1 24
$5.9M
$-14.4M
Free Cash Flow
SPRO
SPRO
URG
URG
Q4 25
Q3 25
$-20.4M
Q2 25
$-17.2M
Q1 25
Q4 24
$-81.0M
Q3 24
$-10.7M
Q2 24
$-12.3M
Q1 24
$-15.2M
FCF Margin
SPRO
SPRO
URG
URG
Q4 25
Q3 25
-322.5%
Q2 25
-164.5%
Q1 25
Q4 24
-357.4%
Q3 24
-167.1%
Q2 24
-263.7%
Q1 24
Capex Intensity
SPRO
SPRO
URG
URG
Q4 25
Q3 25
84.5%
Q2 25
48.5%
Q1 25
Q4 24
39.9%
Q3 24
60.1%
Q2 24
21.7%
Q1 24
Cash Conversion
SPRO
SPRO
URG
URG
Q4 25
-0.26×
Q3 25
Q2 25
Q1 25
Q4 24
Q3 24
Q2 24
Q1 24

Financial Flow Comparison

Revenue → gross profit → operating profit → net profit for each company.

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