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Side-by-side financial comparison of SUTRO BIOPHARMA, INC. (STRO) and UNITED STATES ANTIMONY CORP (UAMY). Click either name above to swap in a different company.

UNITED STATES ANTIMONY CORP is the larger business by last-quarter revenue ($13.0M vs $11.6M, roughly 1.1× SUTRO BIOPHARMA, INC.). On growth, UNITED STATES ANTIMONY CORP posted the faster year-over-year revenue change (131.4% vs -21.4%). Over the past eight quarters, UNITED STATES ANTIMONY CORP's revenue compounded faster (106.0% CAGR vs -5.4%).

Sutro Biopharma, Inc. is a publicly traded biotechnology company headquartered in South San Francisco, California focused on clinical-stage drug discovery, development and manufacturing. Using a proprietary cell-free protein synthesis platform, Sutro is working on oncology therapeutics using protein engineering and rational design. Founded in 2003 under the name Fundamental Applied Biology, the company name changed to Sutro Biopharma in 2009. William Newell, CEO as of 2024, joined Sutro in Ja...

United States Antimony Corp is a natural resources firm focused on exploring, mining, processing, and selling antimony, silver, and gold products. It runs production facilities in the U.S. and Mexico, serving global industrial clients in flame retardant, battery alloy, and specialty chemical manufacturing sectors.

STRO vs UAMY — Head-to-Head

Bigger by revenue
UAMY
UAMY
1.1× larger
UAMY
$13.0M
$11.6M
STRO
Growing faster (revenue YoY)
UAMY
UAMY
+152.8% gap
UAMY
131.4%
-21.4%
STRO
Faster 2-yr revenue CAGR
UAMY
UAMY
Annualised
UAMY
106.0%
-5.4%
STRO

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
STRO
STRO
UAMY
UAMY
Revenue
$11.6M
$13.0M
Net Profit
$-286.9K
Gross Margin
20.3%
Operating Margin
-30.1%
Net Margin
-2.2%
Revenue YoY
-21.4%
131.4%
Net Profit YoY
35.4%
67.5%
EPS (diluted)
$-0.01

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
STRO
STRO
UAMY
UAMY
Q4 25
$11.6M
$13.0M
Q3 25
$9.7M
$8.7M
Q2 25
$63.7M
$10.5M
Q1 25
$17.4M
$7.0M
Q4 24
$14.8M
$5.6M
Q3 24
$8.5M
$2.6M
Q2 24
$25.7M
$3.7M
Q1 24
$13.0M
$3.1M
Net Profit
STRO
STRO
UAMY
UAMY
Q4 25
$-286.9K
Q3 25
$-56.9M
$-4.8M
Q2 25
$-11.5M
$181.6K
Q1 25
$-76.0M
$546.5K
Q4 24
$-72.4M
$-882.9K
Q3 24
$-48.8M
$-727.5K
Q2 24
$-48.0M
$202.8K
Q1 24
$-58.2M
$-322.8K
Gross Margin
STRO
STRO
UAMY
UAMY
Q4 25
20.3%
Q3 25
23.1%
Q2 25
27.0%
Q1 25
33.9%
Q4 24
21.4%
Q3 24
16.5%
Q2 24
34.1%
Q1 24
19.2%
Operating Margin
STRO
STRO
UAMY
UAMY
Q4 25
-30.1%
Q3 25
-499.9%
-56.5%
Q2 25
-5.2%
0.2%
Q1 25
-393.8%
5.1%
Q4 24
-440.7%
-19.3%
Q3 24
-797.2%
-34.6%
Q2 24
-189.4%
1.5%
Q1 24
-435.0%
-15.3%
Net Margin
STRO
STRO
UAMY
UAMY
Q4 25
-2.2%
Q3 25
-586.6%
-54.9%
Q2 25
-18.0%
1.7%
Q1 25
-436.6%
7.8%
Q4 24
-489.2%
-15.7%
Q3 24
-572.6%
-28.3%
Q2 24
-186.8%
5.5%
Q1 24
-447.5%
-10.5%
EPS (diluted)
STRO
STRO
UAMY
UAMY
Q4 25
$-0.01
Q3 25
$-0.67
$-0.04
Q2 25
$-0.14
$0.01
Q1 25
$-0.91
$0.00
Q4 24
$-27.63
$-108943126.01
Q3 24
$-0.59
$-0.01
Q2 24
$-0.59
$108943126.00
Q1 24
$-0.59
$0.00

Balance Sheet & Financial Strength

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

Metric
STRO
STRO
UAMY
UAMY
Cash + ST InvestmentsLiquidity on hand
$141.4M
$30.5M
Total DebtLower is stronger
$195.4K
Stockholders' EquityBook value
$-132.5M
$141.0M
Total Assets
$173.8M
$153.9M
Debt / EquityLower = less leverage
0.00×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
STRO
STRO
UAMY
UAMY
Q4 25
$141.4M
$30.5M
Q3 25
$167.6M
Q2 25
$205.1M
Q1 25
$249.0M
Q4 24
$316.9M
$18.2M
Q3 24
$388.3M
$13.0M
Q2 24
$375.6M
$12.4M
Q1 24
$267.6M
$11.9M
Total Debt
STRO
STRO
UAMY
UAMY
Q4 25
$195.4K
Q3 25
$93.2K
Q2 25
$127.5K
Q1 25
$161.6K
Q4 24
$327.7K
Q3 24
$228.9K
Q2 24
$262.1K
Q1 24
$0
Stockholders' Equity
STRO
STRO
UAMY
UAMY
Q4 25
$-132.5M
$141.0M
Q3 25
$-87.3M
$71.8M
Q2 25
$-32.1M
$37.5M
Q1 25
$-25.8M
$32.6M
Q4 24
$44.6M
$28.6M
Q3 24
$111.2M
$25.1M
Q2 24
$152.2M
$25.7M
Q1 24
$98.0M
$25.4M
Total Assets
STRO
STRO
UAMY
UAMY
Q4 25
$173.8M
$153.9M
Q3 25
$209.7M
$79.9M
Q2 25
$262.4M
$47.5M
Q1 25
$321.4M
$39.5M
Q4 24
$387.2M
$34.6M
Q3 24
$451.8M
$29.8M
Q2 24
$489.0M
$28.9M
Q1 24
$403.4M
$28.0M
Debt / Equity
STRO
STRO
UAMY
UAMY
Q4 25
0.00×
Q3 25
0.00×
Q2 25
0.00×
Q1 25
0.00×
Q4 24
0.01×
Q3 24
0.01×
Q2 24
0.01×
Q1 24
0.00×

Cash Flow & Capital Efficiency

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

Metric
STRO
STRO
UAMY
UAMY
Operating Cash FlowLast quarter
$-177.2M
$-3.5M
Free Cash FlowOCF − Capex
$-15.2M
FCF MarginFCF / Revenue
-116.7%
Capex IntensityCapex / Revenue
90.1%
Cash ConversionOCF / Net Profit
TTM Free Cash FlowTrailing 4 quarters
$-37.5M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
STRO
STRO
UAMY
UAMY
Q4 25
$-177.2M
$-3.5M
Q3 25
$-38.2M
$-3.9M
Q2 25
$-44.7M
$-627.7K
Q1 25
$-67.9M
$-1.7M
Q4 24
$-71.7M
$1.2M
Q3 24
$-64.5M
$411.2K
Q2 24
$9.5M
$565.9K
Q1 24
$-64.7M
$65.0K
Free Cash Flow
STRO
STRO
UAMY
UAMY
Q4 25
$-15.2M
Q3 25
$-12.5M
Q2 25
$-7.2M
Q1 25
$-2.6M
Q4 24
$970.6K
Q3 24
$338.9K
Q2 24
$467.9K
Q1 24
$12.3K
FCF Margin
STRO
STRO
UAMY
UAMY
Q4 25
-116.7%
Q3 25
-144.1%
Q2 25
-68.0%
Q1 25
-37.0%
Q4 24
17.2%
Q3 24
13.2%
Q2 24
12.8%
Q1 24
0.4%
Capex Intensity
STRO
STRO
UAMY
UAMY
Q4 25
90.1%
Q3 25
99.7%
Q2 25
62.1%
Q1 25
12.3%
Q4 24
3.7%
Q3 24
2.8%
Q2 24
2.7%
Q1 24
1.7%
Cash Conversion
STRO
STRO
UAMY
UAMY
Q4 25
Q3 25
Q2 25
-3.46×
Q1 25
-3.16×
Q4 24
Q3 24
Q2 24
2.79×
Q1 24

Financial Flow Comparison

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

Revenue Breakdown by Segment

STRO
STRO

Segment breakdown not available.

UAMY
UAMY

Antimony$11.8M90%
Other$1.2M10%

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