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Side-by-side financial comparison of Kosmos Energy Ltd. (KOS) and Penumbra Inc (PEN). Click either name above to swap in a different company.

Penumbra Inc is the larger business by last-quarter revenue ($385.4M vs $294.6M, roughly 1.3× Kosmos Energy Ltd.). On growth, Penumbra Inc posted the faster year-over-year revenue change (22.1% vs -25.9%). Over the past eight quarters, Penumbra Inc's revenue compounded faster (17.6% CAGR vs -16.5%).

Kosmos Energy is an American upstream oil company founded and based in Dallas, Texas. While previously incorporated in Bermuda, Kosmos has reincorporated in Delaware. The company holds production and development operations offshore Ghana, Equatorial Guinea, and Gulf of Mexico, while holding a development project offshore Mauritania and Senegal, and exploration licenses offshore Namibia, São Tomé and Príncipe and Suriname. It was previously involved in exploration offshore Morocco and Western ...

Penumbra, Inc. is an American medical device company headquartered in Alameda, California. The company was founded by Arani Bose and Adam Elsesser in 2004. It manufactures devices for interventional therapies to treat vascular conditions such as stroke and aneurysm.

KOS vs PEN — Head-to-Head

Bigger by revenue
PEN
PEN
1.3× larger
PEN
$385.4M
$294.6M
KOS
Growing faster (revenue YoY)
PEN
PEN
+48.0% gap
PEN
22.1%
-25.9%
KOS
Faster 2-yr revenue CAGR
PEN
PEN
Annualised
PEN
17.6%
-16.5%
KOS

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
KOS
KOS
PEN
PEN
Revenue
$294.6M
$385.4M
Net Profit
$47.3M
Gross Margin
68.0%
Operating Margin
-125.7%
15.4%
Net Margin
12.3%
Revenue YoY
-25.9%
22.1%
Net Profit YoY
40.6%
EPS (diluted)
$-0.80
$1.20

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
KOS
KOS
PEN
PEN
Q4 25
$294.6M
$385.4M
Q3 25
$311.0M
$354.7M
Q2 25
$392.6M
$339.5M
Q1 25
$290.1M
$324.1M
Q4 24
$397.6M
$315.5M
Q3 24
$407.8M
$301.0M
Q2 24
$447.8M
$299.4M
Q1 24
$422.3M
$278.7M
Net Profit
KOS
KOS
PEN
PEN
Q4 25
$47.3M
Q3 25
$-124.3M
$45.9M
Q2 25
$-87.7M
$45.3M
Q1 25
$-110.6M
$39.2M
Q4 24
$33.7M
Q3 24
$45.0M
$29.5M
Q2 24
$59.8M
$-60.2M
Q1 24
$91.7M
$11.0M
Gross Margin
KOS
KOS
PEN
PEN
Q4 25
68.0%
Q3 25
67.8%
Q2 25
66.0%
Q1 25
66.6%
Q4 24
66.8%
Q3 24
66.5%
Q2 24
54.4%
Q1 24
65.0%
Operating Margin
KOS
KOS
PEN
PEN
Q4 25
-125.7%
15.4%
Q3 25
-34.2%
13.8%
Q2 25
-16.2%
12.0%
Q1 25
-32.4%
12.4%
Q4 24
-8.5%
13.6%
Q3 24
26.1%
11.7%
Q2 24
30.2%
-27.0%
Q1 24
33.6%
4.3%
Net Margin
KOS
KOS
PEN
PEN
Q4 25
12.3%
Q3 25
-40.0%
12.9%
Q2 25
-22.3%
13.3%
Q1 25
-38.1%
12.1%
Q4 24
10.7%
Q3 24
11.0%
9.8%
Q2 24
13.3%
-20.1%
Q1 24
21.7%
3.9%
EPS (diluted)
KOS
KOS
PEN
PEN
Q4 25
$-0.80
$1.20
Q3 25
$-0.26
$1.17
Q2 25
$-0.18
$1.15
Q1 25
$-0.23
$1.00
Q4 24
$0.00
$0.88
Q3 24
$0.09
$0.75
Q2 24
$0.12
$-1.55
Q1 24
$0.19
$0.28

Balance Sheet & Financial Strength

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

Metric
KOS
KOS
PEN
PEN
Cash + ST InvestmentsLiquidity on hand
$91.5M
$186.9M
Total DebtLower is stronger
$3.1B
Stockholders' EquityBook value
$528.6M
$1.4B
Total Assets
$4.7B
$1.8B
Debt / EquityLower = less leverage
5.78×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
KOS
KOS
PEN
PEN
Q4 25
$91.5M
$186.9M
Q3 25
$64.0M
$321.0M
Q2 25
$51.7M
$421.8M
Q1 25
$49.8M
$376.1M
Q4 24
$85.0M
$324.4M
Q3 24
$51.6M
$280.5M
Q2 24
$173.8M
$288.3M
Q1 24
$254.3M
$223.1M
Total Debt
KOS
KOS
PEN
PEN
Q4 25
$3.1B
Q3 25
$3.0B
Q2 25
$2.9B
Q1 25
Q4 24
$2.7B
Q3 24
Q2 24
Q1 24
Stockholders' Equity
KOS
KOS
PEN
PEN
Q4 25
$528.6M
$1.4B
Q3 25
$898.8M
$1.4B
Q2 25
$1.0B
$1.3B
Q1 25
$1.1B
$1.2B
Q4 24
$1.2B
$1.2B
Q3 24
$1.2B
$1.1B
Q2 24
$1.1B
$1.2B
Q1 24
$1.1B
$1.2B
Total Assets
KOS
KOS
PEN
PEN
Q4 25
$4.7B
$1.8B
Q3 25
$5.1B
$1.7B
Q2 25
$5.2B
$1.7B
Q1 25
$5.3B
$1.6B
Q4 24
$5.3B
$1.5B
Q3 24
$5.5B
$1.5B
Q2 24
$5.4B
$1.5B
Q1 24
$5.4B
$1.6B
Debt / Equity
KOS
KOS
PEN
PEN
Q4 25
5.78×
Q3 25
3.31×
Q2 25
2.80×
Q1 25
Q4 24
2.29×
Q3 24
Q2 24
Q1 24

Cash Flow & Capital Efficiency

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

Metric
KOS
KOS
PEN
PEN
Operating Cash FlowLast quarter
$35.3M
$86.5M
Free Cash FlowOCF − Capex
$68.0M
FCF MarginFCF / Revenue
17.7%
Capex IntensityCapex / Revenue
4.8%
Cash ConversionOCF / Net Profit
1.83×
TTM Free Cash FlowTrailing 4 quarters
$174.9M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
KOS
KOS
PEN
PEN
Q4 25
$35.3M
$86.5M
Q3 25
$-27.6M
$58.3M
Q2 25
$127.2M
$44.9M
Q1 25
$-888.0K
$49.0M
Q4 24
$175.7M
$51.1M
Q3 24
$6.3M
$56.5M
Q2 24
$223.7M
$22.6M
Q1 24
$272.6M
$38.3M
Free Cash Flow
KOS
KOS
PEN
PEN
Q4 25
$68.0M
Q3 25
$42.0M
Q2 25
$29.4M
Q1 25
$35.5M
Q4 24
$45.7M
Q3 24
$51.0M
Q2 24
$18.1M
Q1 24
$32.5M
FCF Margin
KOS
KOS
PEN
PEN
Q4 25
17.7%
Q3 25
11.8%
Q2 25
8.7%
Q1 25
11.0%
Q4 24
14.5%
Q3 24
16.9%
Q2 24
6.0%
Q1 24
11.7%
Capex Intensity
KOS
KOS
PEN
PEN
Q4 25
4.8%
Q3 25
4.6%
Q2 25
4.6%
Q1 25
4.2%
Q4 24
1.7%
Q3 24
1.8%
Q2 24
1.5%
Q1 24
2.1%
Cash Conversion
KOS
KOS
PEN
PEN
Q4 25
1.83×
Q3 25
1.27×
Q2 25
0.99×
Q1 25
1.25×
Q4 24
1.52×
Q3 24
0.14×
1.91×
Q2 24
3.74×
Q1 24
2.97×
3.48×

Financial Flow Comparison

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

Revenue Breakdown by Segment

KOS
KOS

Ghana Segment$134.6M46%
Gulf Of America$80.7M27%
Mauritania And Senegal$54.9M19%
Equatorial Guinea Segment$24.3M8%

PEN
PEN

Thrombectomy$254.7M66%
Other$130.7M34%

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