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Side-by-side financial comparison of FIBROGEN INC (KYNB) and STEM, INC. (STEM). Click either name above to swap in a different company.

STEM, INC. is the larger business by last-quarter revenue ($47.1M vs $25.4M, roughly 1.9× FIBROGEN INC). STEM, INC. runs the higher net margin — -33.9% vs -129.8%, a 95.9% gap on every dollar of revenue. On growth, STEM, INC. posted the faster year-over-year revenue change (-15.6% vs -29.9%). Over the past eight quarters, STEM, INC.'s revenue compounded faster (36.1% CAGR vs -7.8%).

FibroGen Inc. is a biopharmaceutical firm developing and commercializing innovative therapies for unmet medical needs, targeting fibrotic diseases, anemia and cancer. Its lead product roxadustat is approved in multiple markets including China and Japan, serving patients across key therapeutic segments.

StemCells, Inc. is a public biopharmaceutical company headquartered in Newark, California, that is developing purified human neural stem cells (HuCNS-SCs) in the hopes of treating central nervous system disorders and paralysis. StemCells' HuCNS-SCs have the ability to differentiate into the three main types of cells found in the central nervous system: neurons, astrocytes and oligodendrocytes.

KYNB vs STEM — Head-to-Head

Bigger by revenue
STEM
STEM
1.9× larger
STEM
$47.1M
$25.4M
KYNB
Growing faster (revenue YoY)
STEM
STEM
+14.3% gap
STEM
-15.6%
-29.9%
KYNB
Higher net margin
STEM
STEM
95.9% more per $
STEM
-33.9%
-129.8%
KYNB
Faster 2-yr revenue CAGR
STEM
STEM
Annualised
STEM
36.1%
-7.8%
KYNB

Income Statement — Q1 FY2024 vs Q4 FY2025

Metric
KYNB
KYNB
STEM
STEM
Revenue
$25.4M
$47.1M
Net Profit
$-32.9M
$-16.0M
Gross Margin
15.9%
48.9%
Operating Margin
-193.9%
-17.7%
Net Margin
-129.8%
-33.9%
Revenue YoY
-29.9%
-15.6%
Net Profit YoY
57.1%
68.8%
EPS (diluted)
$-0.33
$-4.40

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
KYNB
KYNB
STEM
STEM
Q4 25
$47.1M
Q3 25
$38.2M
Q2 25
$38.4M
Q1 25
$32.5M
Q4 24
$55.8M
Q3 24
$29.3M
Q2 24
$34.0M
Q1 24
$25.4M
$25.5M
Net Profit
KYNB
KYNB
STEM
STEM
Q4 25
$-16.0M
Q3 25
$-23.8M
Q2 25
$202.5M
Q1 25
$-25.0M
Q4 24
$-51.1M
Q3 24
$-148.3M
Q2 24
$-582.3M
Q1 24
$-32.9M
$-72.3M
Gross Margin
KYNB
KYNB
STEM
STEM
Q4 25
48.9%
Q3 25
35.5%
Q2 25
33.4%
Q1 25
32.4%
Q4 24
-4.4%
Q3 24
21.2%
Q2 24
27.6%
Q1 24
15.9%
-95.0%
Operating Margin
KYNB
KYNB
STEM
STEM
Q4 25
-17.7%
Q3 25
-33.6%
Q2 25
-34.8%
Q1 25
-65.0%
Q4 24
-84.4%
Q3 24
-493.2%
Q2 24
-1705.5%
Q1 24
-193.9%
-267.0%
Net Margin
KYNB
KYNB
STEM
STEM
Q4 25
-33.9%
Q3 25
-62.2%
Q2 25
527.8%
Q1 25
-76.9%
Q4 24
-91.6%
Q3 24
-506.3%
Q2 24
-1712.6%
Q1 24
-129.8%
-283.9%
EPS (diluted)
KYNB
KYNB
STEM
STEM
Q4 25
$-4.40
Q3 25
$-2.84
Q2 25
$-1.79
Q1 25
$-0.15
Q4 24
$-15.29
Q3 24
$-18.24
Q2 24
$-71.81
Q1 24
$-0.33
$-0.46

Balance Sheet & Financial Strength

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

Metric
KYNB
KYNB
STEM
STEM
Cash + ST InvestmentsLiquidity on hand
$177.6M
$48.9M
Total DebtLower is stronger
Stockholders' EquityBook value
$-228.1M
$-249.4M
Total Assets
$365.9M
$308.9M
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
KYNB
KYNB
STEM
STEM
Q4 25
$48.9M
Q3 25
$43.1M
Q2 25
$40.8M
Q1 25
$58.6M
Q4 24
$56.3M
Q3 24
$75.4M
Q2 24
$89.6M
Q1 24
$177.6M
$112.8M
Stockholders' Equity
KYNB
KYNB
STEM
STEM
Q4 25
$-249.4M
Q3 25
$-235.7M
Q2 25
$-214.1M
Q1 25
$-417.5M
Q4 24
$-398.4M
Q3 24
$-344.1M
Q2 24
$-203.2M
Q1 24
$-228.1M
$371.6M
Total Assets
KYNB
KYNB
STEM
STEM
Q4 25
$308.9M
Q3 25
$362.6M
Q2 25
$379.2M
Q1 25
$405.1M
Q4 24
$437.4M
Q3 24
$537.8M
Q2 24
$691.5M
Q1 24
$365.9M
$1.3B

Cash Flow & Capital Efficiency

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

Metric
KYNB
KYNB
STEM
STEM
Operating Cash FlowLast quarter
$-59.3M
$8.2M
Free Cash FlowOCF − Capex
$-59.3M
FCF MarginFCF / Revenue
-233.9%
Capex IntensityCapex / Revenue
0.1%
Cash ConversionOCF / Net Profit
TTM Free Cash FlowTrailing 4 quarters
$-274.7M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
KYNB
KYNB
STEM
STEM
Q4 25
$8.2M
Q3 25
$11.4M
Q2 25
$-21.3M
Q1 25
$8.5M
Q4 24
$-14.7M
Q3 24
$-9.4M
Q2 24
$-11.9M
Q1 24
$-59.3M
$-621.0K
Free Cash Flow
KYNB
KYNB
STEM
STEM
Q4 25
Q3 25
Q2 25
Q1 25
Q4 24
Q3 24
Q2 24
Q1 24
$-59.3M
FCF Margin
KYNB
KYNB
STEM
STEM
Q4 25
Q3 25
Q2 25
Q1 25
Q4 24
Q3 24
Q2 24
Q1 24
-233.9%
Capex Intensity
KYNB
KYNB
STEM
STEM
Q4 25
Q3 25
Q2 25
Q1 25
Q4 24
Q3 24
Q2 24
Q1 24
0.1%
Cash Conversion
KYNB
KYNB
STEM
STEM
Q4 25
Q3 25
Q2 25
-0.11×
Q1 25
Q4 24
Q3 24
Q2 24
Q1 24

Financial Flow Comparison

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

Revenue Breakdown by Segment

KYNB
KYNB

Drug Product Revenue$24.5M97%
Other$878.0K3%

STEM
STEM

Segment breakdown not available.

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