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Side-by-side financial comparison of Ceribell, Inc. (CBLL) and Montauk Renewables, Inc. (MNTK). Click either name above to swap in a different company.

Montauk Renewables, Inc. is the larger business by last-quarter revenue ($43.4M vs $24.8M, roughly 1.8× Ceribell, Inc.). Montauk Renewables, Inc. runs the higher net margin — 5.7% vs -54.6%, a 60.3% gap on every dollar of revenue. Ceribell, Inc. produced more free cash flow last quarter ($-11.0M vs $-41.1M).

Ceribell, Inc. develops and commercializes innovative portable neurodiagnostic medical devices, focused on rapid non-invasive electroencephalogram (EEG) solutions for seizure detection. Its core products serve hospital emergency departments, intensive care units, and long-term care facilities, with primary markets across North America and ongoing global expansion efforts.

Montauk Renewables, Inc. is a US-based renewable energy firm specializing in capturing and converting biogenic methane from landfills and agricultural waste into renewable natural gas (RNG) and low-carbon electricity. It serves utility, commercial, and industrial customers across North America, with operations focused on advancing decarbonization and sustainable energy transition goals.

CBLL vs MNTK — Head-to-Head

Bigger by revenue
MNTK
MNTK
1.8× larger
MNTK
$43.4M
$24.8M
CBLL
Higher net margin
MNTK
MNTK
60.3% more per $
MNTK
5.7%
-54.6%
CBLL
More free cash flow
CBLL
CBLL
$30.1M more FCF
CBLL
$-11.0M
$-41.1M
MNTK

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
CBLL
CBLL
MNTK
MNTK
Revenue
$24.8M
$43.4M
Net Profit
$-13.5M
$2.5M
Gross Margin
87.3%
Operating Margin
-58.9%
-3.8%
Net Margin
-54.6%
5.7%
Revenue YoY
56.7%
Net Profit YoY
129.5%
EPS (diluted)
$-0.35
$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
CBLL
CBLL
MNTK
MNTK
Q4 25
$24.8M
$43.4M
Q3 25
$22.6M
$45.3M
Q2 25
$21.2M
$45.1M
Q1 25
$20.5M
$42.6M
Q4 24
$27.7M
Q3 24
$17.2M
$65.9M
Q2 24
$43.3M
Q1 24
$38.8M
Net Profit
CBLL
CBLL
MNTK
MNTK
Q4 25
$-13.5M
$2.5M
Q3 25
$-13.5M
$5.2M
Q2 25
$-13.6M
$-5.5M
Q1 25
$-12.8M
$-464.0K
Q4 24
$-8.5M
Q3 24
$-10.4M
$17.0M
Q2 24
$-712.0K
Q1 24
$1.9M
Gross Margin
CBLL
CBLL
MNTK
MNTK
Q4 25
87.3%
Q3 25
88.3%
Q2 25
88.1%
Q1 25
87.9%
Q4 24
Q3 24
87.3%
43.8%
Q2 24
15.6%
Q1 24
22.8%
Operating Margin
CBLL
CBLL
MNTK
MNTK
Q4 25
-58.9%
-3.8%
Q3 25
-64.8%
9.8%
Q2 25
-70.5%
-5.2%
Q1 25
-69.3%
1.0%
Q4 24
-35.5%
Q3 24
-57.8%
34.4%
Q2 24
2.0%
Q1 24
6.1%
Net Margin
CBLL
CBLL
MNTK
MNTK
Q4 25
-54.6%
5.7%
Q3 25
-59.6%
11.5%
Q2 25
-64.4%
-12.2%
Q1 25
-62.4%
-1.1%
Q4 24
-30.5%
Q3 24
-60.6%
25.9%
Q2 24
-1.6%
Q1 24
4.8%
EPS (diluted)
CBLL
CBLL
MNTK
MNTK
Q4 25
$-0.35
$0.01
Q3 25
$-0.37
$0.04
Q2 25
$-0.38
$-0.04
Q1 25
$-0.36
$0.00
Q4 24
$-0.05
Q3 24
$-1.85
$0.12
Q2 24
$-0.01
Q1 24
$0.01

Balance Sheet & Financial Strength

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

Metric
CBLL
CBLL
MNTK
MNTK
Cash + ST InvestmentsLiquidity on hand
$159.3M
$23.8M
Total DebtLower is stronger
$126.0M
Stockholders' EquityBook value
$155.3M
$263.1M
Total Assets
$195.8M
$435.5M
Debt / EquityLower = less leverage
0.48×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
CBLL
CBLL
MNTK
MNTK
Q4 25
$159.3M
$23.8M
Q3 25
$168.5M
$6.8M
Q2 25
$177.4M
$29.1M
Q1 25
$182.7M
$40.1M
Q4 24
$45.6M
Q3 24
$14.1M
$55.0M
Q2 24
$42.3M
Q1 24
$63.3M
Total Debt
CBLL
CBLL
MNTK
MNTK
Q4 25
$126.0M
Q3 25
$54.9M
Q2 25
$57.8M
Q1 25
$40.8M
Q4 24
$43.8M
Q3 24
$46.7M
Q2 24
$49.7M
Q1 24
$52.7M
Stockholders' Equity
CBLL
CBLL
MNTK
MNTK
Q4 25
$155.3M
$263.1M
Q3 25
$164.1M
$260.7M
Q2 25
$172.2M
$254.7M
Q1 25
$180.9M
$258.2M
Q4 24
$257.4M
Q3 24
$-136.0M
$275.3M
Q2 24
$255.3M
Q1 24
$254.3M
Total Assets
CBLL
CBLL
MNTK
MNTK
Q4 25
$195.8M
$435.5M
Q3 25
$199.5M
$383.3M
Q2 25
$207.7M
$382.5M
Q1 25
$213.5M
$354.2M
Q4 24
$349.0M
Q3 24
$47.1M
$374.1M
Q2 24
$362.0M
Q1 24
$354.7M
Debt / Equity
CBLL
CBLL
MNTK
MNTK
Q4 25
0.48×
Q3 25
0.21×
Q2 25
0.23×
Q1 25
0.16×
Q4 24
0.17×
Q3 24
0.17×
Q2 24
0.19×
Q1 24
0.21×

Cash Flow & Capital Efficiency

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

Metric
CBLL
CBLL
MNTK
MNTK
Operating Cash FlowLast quarter
$-10.8M
$337.0K
Free Cash FlowOCF − Capex
$-11.0M
$-41.1M
FCF MarginFCF / Revenue
-44.2%
-94.7%
Capex IntensityCapex / Revenue
0.7%
95.5%
Cash ConversionOCF / Net Profit
0.14×
TTM Free Cash FlowTrailing 4 quarters
$-41.6M
$-86.2M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
CBLL
CBLL
MNTK
MNTK
Q4 25
$-10.8M
$337.0K
Q3 25
$-11.1M
$12.7M
Q2 25
$-7.5M
$8.2M
Q1 25
$-11.4M
$9.1M
Q4 24
$724.0K
Q3 24
$28.6M
Q2 24
$193.0K
Q1 24
$14.3M
Free Cash Flow
CBLL
CBLL
MNTK
MNTK
Q4 25
$-11.0M
$-41.1M
Q3 25
$-11.5M
$-17.2M
Q2 25
$-7.6M
$-25.5M
Q1 25
$-11.6M
$-2.5M
Q4 24
$-8.3M
Q3 24
$16.0M
Q2 24
$-18.6M
Q1 24
$-7.7M
FCF Margin
CBLL
CBLL
MNTK
MNTK
Q4 25
-44.2%
-94.7%
Q3 25
-50.8%
-37.9%
Q2 25
-35.9%
-56.4%
Q1 25
-56.4%
-5.8%
Q4 24
-29.8%
Q3 24
24.3%
Q2 24
-42.9%
Q1 24
-19.8%
Capex Intensity
CBLL
CBLL
MNTK
MNTK
Q4 25
0.7%
95.5%
Q3 25
1.6%
65.9%
Q2 25
0.3%
74.6%
Q1 25
0.7%
27.3%
Q4 24
32.5%
Q3 24
19.1%
Q2 24
43.3%
Q1 24
56.7%
Cash Conversion
CBLL
CBLL
MNTK
MNTK
Q4 25
0.14×
Q3 25
2.43×
Q2 25
Q1 25
Q4 24
Q3 24
1.68×
Q2 24
Q1 24
7.73×

Financial Flow Comparison

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

Revenue Breakdown by Segment

CBLL
CBLL

Products$18.8M76%
Subscription$6.0M24%

MNTK
MNTK

Natural Gas Environmental Attributes$28.1M65%
Natural Gas Commodity$10.7M25%
Electric Commodity$2.7M6%
Electric Environmental Attributes$2.0M5%

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