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Side-by-side financial comparison of GERON CORP (GERN) and System1, Inc. (SST). Click either name above to swap in a different company.

System1, Inc. is the larger business by last-quarter revenue ($51.9M vs $47.2M, roughly 1.1× GERON CORP). System1, Inc. runs the higher net margin — -26.0% vs -39.0%, a 13.1% gap on every dollar of revenue. On growth, GERON CORP posted the faster year-over-year revenue change (67.1% vs -31.3%). Over the past eight quarters, GERON CORP's revenue compounded faster (1597.0% CAGR vs -21.8%).

Geron Corporation is a biotechnology company located in Foster City, California which specializes in developing and commercializing therapeutic products for cancer that inhibit telomerase.

System1 is an American Internet advertising company. Formerly known as OpenMail, it was founded in 2013. It describes itself as operating a "Responsive Acquisition Marketing Platform", and cites privacy as one of its principal foci, although it has been criticized for its influence on privacy-focused properties, including search engine Startpage.com. It is headquartered in Marina del Rey, California.

GERN vs SST — Head-to-Head

Bigger by revenue
SST
SST
1.1× larger
SST
$51.9M
$47.2M
GERN
Growing faster (revenue YoY)
GERN
GERN
+98.3% gap
GERN
67.1%
-31.3%
SST
Higher net margin
SST
SST
13.1% more per $
SST
-26.0%
-39.0%
GERN
Faster 2-yr revenue CAGR
GERN
GERN
Annualised
GERN
1597.0%
-21.8%
SST

Income Statement — Q3 FY2025 vs Q4 FY2025

Metric
GERN
GERN
SST
SST
Revenue
$47.2M
$51.9M
Net Profit
$-18.4M
$-13.5M
Gross Margin
41.0%
Operating Margin
-29.4%
-33.6%
Net Margin
-39.0%
-26.0%
Revenue YoY
67.1%
-31.3%
Net Profit YoY
30.3%
4.8%
EPS (diluted)
$-0.03
$-3.58

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
GERN
GERN
SST
SST
Q4 25
$51.9M
Q3 25
$47.2M
$61.6M
Q2 25
$49.0M
$78.1M
Q1 25
$39.6M
$74.5M
Q4 24
$75.6M
Q3 24
$28.3M
$88.8M
Q2 24
$882.0K
$94.6M
Q1 24
$304.0K
$84.9M
Net Profit
GERN
GERN
SST
SST
Q4 25
$-13.5M
Q3 25
$-18.4M
$-18.5M
Q2 25
$-16.4M
$-17.5M
Q1 25
$-19.8M
$-15.9M
Q4 24
$-14.2M
Q3 24
$-26.4M
$-23.6M
Q2 24
$-67.4M
$-26.4M
Q1 24
$-55.4M
$-10.5M
Gross Margin
GERN
GERN
SST
SST
Q4 25
41.0%
Q3 25
36.9%
Q2 25
35.7%
Q1 25
38.2%
Q4 24
42.1%
Q3 24
28.0%
Q2 24
27.6%
Q1 24
21.9%
Operating Margin
GERN
GERN
SST
SST
Q4 25
-33.6%
Q3 25
-29.4%
-25.3%
Q2 25
-25.4%
-20.4%
Q1 25
-42.2%
-17.6%
Q4 24
-15.7%
Q3 24
-99.8%
-24.6%
Q2 24
-7860.9%
-30.8%
Q1 24
-18465.1%
-30.4%
Net Margin
GERN
GERN
SST
SST
Q4 25
-26.0%
Q3 25
-39.0%
-30.1%
Q2 25
-33.4%
-22.4%
Q1 25
-50.1%
-21.3%
Q4 24
-18.7%
Q3 24
-93.5%
-26.6%
Q2 24
-7639.8%
-27.9%
Q1 24
-18220.4%
-12.4%
EPS (diluted)
GERN
GERN
SST
SST
Q4 25
$-3.58
Q3 25
$-0.03
$-2.30
Q2 25
$-0.02
$-2.23
Q1 25
$-0.03
$-0.21
Q4 24
$-3.41
Q3 24
$-0.04
$-3.37
Q2 24
$-0.10
$-3.80
Q1 24
$-0.09
$-0.16

Balance Sheet & Financial Strength

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

Metric
GERN
GERN
SST
SST
Cash + ST InvestmentsLiquidity on hand
$78.1M
$86.9M
Total DebtLower is stronger
$305.1M
Stockholders' EquityBook value
$248.7M
$30.5M
Total Assets
$567.4M
$405.0M
Debt / EquityLower = less leverage
10.01×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
GERN
GERN
SST
SST
Q4 25
$86.9M
Q3 25
$78.1M
$54.6M
Q2 25
$77.7M
$63.6M
Q1 25
$83.7M
$43.9M
Q4 24
$63.6M
Q3 24
$60.3M
$69.1M
Q2 24
$116.9M
$75.7M
Q1 24
$189.8M
$69.9M
Total Debt
GERN
GERN
SST
SST
Q4 25
$305.1M
Q3 25
$259.2M
Q2 25
$263.3M
Q1 25
$267.4M
Q4 24
$255.1M
Q3 24
$259.2M
Q2 24
$263.3M
Q1 24
$268.6M
Stockholders' Equity
GERN
GERN
SST
SST
Q4 25
$30.5M
Q3 25
$248.7M
$42.7M
Q2 25
$259.5M
$58.2M
Q1 25
$268.2M
$67.2M
Q4 24
$80.3M
Q3 24
$292.3M
$90.3M
Q2 24
$306.7M
$109.4M
Q1 24
$344.9M
$131.7M
Total Assets
GERN
GERN
SST
SST
Q4 25
$405.0M
Q3 25
$567.4M
$385.2M
Q2 25
$555.2M
$429.2M
Q1 25
$562.5M
$419.2M
Q4 24
$459.1M
Q3 24
$444.9M
$479.3M
Q2 24
$449.4M
$511.3M
Q1 24
$482.1M
$521.1M
Debt / Equity
GERN
GERN
SST
SST
Q4 25
10.01×
Q3 25
6.07×
Q2 25
4.53×
Q1 25
3.98×
Q4 24
3.18×
Q3 24
2.87×
Q2 24
2.41×
Q1 24
2.04×

Cash Flow & Capital Efficiency

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

Metric
GERN
GERN
SST
SST
Operating Cash FlowLast quarter
$-13.6M
$-10.6M
Free Cash FlowOCF − Capex
FCF MarginFCF / Revenue
Capex IntensityCapex / Revenue
0.0%
Cash ConversionOCF / Net Profit
TTM Free Cash FlowTrailing 4 quarters

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
GERN
GERN
SST
SST
Q4 25
$-10.6M
Q3 25
$-13.6M
$-2.1M
Q2 25
$-27.4M
$24.5M
Q1 25
$-48.0M
$-15.9M
Q4 24
$772.0K
Q3 24
$-58.9M
$-5.0K
Q2 24
$-53.5M
$10.0M
Q1 24
$-62.3M
$-16.0M
Free Cash Flow
GERN
GERN
SST
SST
Q4 25
Q3 25
Q2 25
Q1 25
$-16.0M
Q4 24
Q3 24
$-36.0K
Q2 24
$-53.7M
Q1 24
$-62.9M
FCF Margin
GERN
GERN
SST
SST
Q4 25
Q3 25
Q2 25
Q1 25
-21.5%
Q4 24
Q3 24
-0.0%
Q2 24
-6086.6%
Q1 24
-20680.3%
Capex Intensity
GERN
GERN
SST
SST
Q4 25
0.0%
Q3 25
0.0%
Q2 25
0.0%
Q1 25
0.1%
Q4 24
0.0%
Q3 24
0.0%
0.0%
Q2 24
23.4%
0.0%
Q1 24
202.3%
0.0%

Financial Flow Comparison

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

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