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Side-by-side financial comparison of Apellis Pharmaceuticals, Inc. (APLS) and Kodiak Gas Services, Inc. (KGS). Click either name above to swap in a different company.

Kodiak Gas Services, Inc. is the larger business by last-quarter revenue ($332.9M vs $199.9M, roughly 1.7× Apellis Pharmaceuticals, Inc.). Kodiak Gas Services, Inc. runs the higher net margin — 7.4% vs -29.5%, a 36.9% gap on every dollar of revenue. On growth, Kodiak Gas Services, Inc. posted the faster year-over-year revenue change (7.5% vs -5.9%). Kodiak Gas Services, Inc. produced more free cash flow last quarter ($142.0M vs $-14.3M). Over the past eight quarters, Kodiak Gas Services, Inc.'s revenue compounded faster (24.3% CAGR vs 7.7%).

Apellis Pharmaceuticals is a clinical-stage biopharmaceutical company focused on developing targeted therapies that modulate the complement system to address serious unmet medical needs. Its core products target ophthalmic conditions like geographic atrophy secondary to age-related macular degeneration, as well as rare hematological and autoimmune disorders, with primary operations in the United States and European markets.

Kodiak Gas Services, Inc. is a leading natural gas compression services provider operating primarily across North America. It serves upstream and midstream energy sector clients, offering custom compression equipment, regular maintenance, and operational support to optimize natural gas gathering, processing, and transportation workflows for onshore oil and gas production operations.

APLS vs KGS — Head-to-Head

Bigger by revenue
KGS
KGS
1.7× larger
KGS
$332.9M
$199.9M
APLS
Growing faster (revenue YoY)
KGS
KGS
+13.5% gap
KGS
7.5%
-5.9%
APLS
Higher net margin
KGS
KGS
36.9% more per $
KGS
7.4%
-29.5%
APLS
More free cash flow
KGS
KGS
$156.3M more FCF
KGS
$142.0M
$-14.3M
APLS
Faster 2-yr revenue CAGR
KGS
KGS
Annualised
KGS
24.3%
7.7%
APLS

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
APLS
APLS
KGS
KGS
Revenue
$199.9M
$332.9M
Net Profit
$-59.0M
$24.6M
Gross Margin
Operating Margin
-25.6%
26.1%
Net Margin
-29.5%
7.4%
Revenue YoY
-5.9%
7.5%
Net Profit YoY
-62.2%
29.0%
EPS (diluted)
$-0.40
$0.30

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
APLS
APLS
KGS
KGS
Q4 25
$199.9M
$332.9M
Q3 25
$458.6M
$322.7M
Q2 25
$178.5M
$322.8M
Q1 25
$166.8M
$329.6M
Q4 24
$212.5M
$309.5M
Q3 24
$196.8M
$324.6M
Q2 24
$199.7M
$309.7M
Q1 24
$172.3M
$215.5M
Net Profit
APLS
APLS
KGS
KGS
Q4 25
$-59.0M
$24.6M
Q3 25
$215.7M
$-14.0M
Q2 25
$-42.2M
$39.5M
Q1 25
$-92.2M
$30.4M
Q4 24
$-36.4M
$19.1M
Q3 24
$-57.4M
$-5.6M
Q2 24
$-37.7M
$6.2M
Q1 24
$-66.4M
$30.2M
Gross Margin
APLS
APLS
KGS
KGS
Q4 25
Q3 25
Q2 25
Q1 25
Q4 24
Q3 24
37.5%
Q2 24
36.5%
Q1 24
39.4%
Operating Margin
APLS
APLS
KGS
KGS
Q4 25
-25.6%
26.1%
Q3 25
48.7%
19.9%
Q2 25
-18.6%
30.9%
Q1 25
-50.0%
27.1%
Q4 24
-12.3%
22.3%
Q3 24
-24.0%
20.4%
Q2 24
-14.7%
17.5%
Q1 24
-36.0%
27.9%
Net Margin
APLS
APLS
KGS
KGS
Q4 25
-29.5%
7.4%
Q3 25
47.0%
-4.3%
Q2 25
-23.6%
12.2%
Q1 25
-55.3%
9.2%
Q4 24
-17.1%
6.2%
Q3 24
-29.2%
-1.7%
Q2 24
-18.9%
2.0%
Q1 24
-38.5%
14.0%
EPS (diluted)
APLS
APLS
KGS
KGS
Q4 25
$-0.40
$0.30
Q3 25
$1.67
$-0.17
Q2 25
$-0.33
$0.43
Q1 25
$-0.74
$0.33
Q4 24
$-0.30
$0.18
Q3 24
$-0.46
$-0.07
Q2 24
$-0.30
$0.06
Q1 24
$-0.54
$0.39

Balance Sheet & Financial Strength

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

Metric
APLS
APLS
KGS
KGS
Cash + ST InvestmentsLiquidity on hand
$466.2M
$3.2M
Total DebtLower is stronger
$2.6B
Stockholders' EquityBook value
$370.1M
$1.2B
Total Assets
$1.1B
$4.3B
Debt / EquityLower = less leverage
2.12×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
APLS
APLS
KGS
KGS
Q4 25
$466.2M
$3.2M
Q3 25
$479.2M
$724.0K
Q2 25
$370.0M
$5.4M
Q1 25
$358.4M
$1.9M
Q4 24
$411.3M
$4.8M
Q3 24
$396.9M
$7.4M
Q2 24
$360.1M
$3.9M
Q1 24
$325.9M
$9.3M
Total Debt
APLS
APLS
KGS
KGS
Q4 25
$2.6B
Q3 25
$2.6B
Q2 25
$2.5B
Q1 25
$2.6B
Q4 24
$2.6B
Q3 24
$2.6B
Q2 24
$2.5B
Q1 24
$93.1M
Stockholders' Equity
APLS
APLS
KGS
KGS
Q4 25
$370.1M
$1.2B
Q3 25
$401.2M
$1.3B
Q2 25
$156.3M
$1.3B
Q1 25
$164.2M
$1.4B
Q4 24
$228.5M
$1.4B
Q3 24
$237.1M
$1.4B
Q2 24
$264.3M
$1.5B
Q1 24
$266.7M
$1.1B
Total Assets
APLS
APLS
KGS
KGS
Q4 25
$1.1B
$4.3B
Q3 25
$1.1B
$4.4B
Q2 25
$821.4M
$4.4B
Q1 25
$807.3M
$4.4B
Q4 24
$885.1M
$4.4B
Q3 24
$901.9M
$4.5B
Q2 24
$904.5M
$4.4B
Q1 24
$831.9M
$3.3B
Debt / Equity
APLS
APLS
KGS
KGS
Q4 25
2.12×
Q3 25
2.08×
Q2 25
1.89×
Q1 25
1.91×
Q4 24
1.88×
Q3 24
1.86×
Q2 24
1.71×
Q1 24
0.35×

Cash Flow & Capital Efficiency

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

Metric
APLS
APLS
KGS
KGS
Operating Cash FlowLast quarter
$-14.2M
$194.9M
Free Cash FlowOCF − Capex
$-14.3M
$142.0M
FCF MarginFCF / Revenue
-7.1%
42.7%
Capex IntensityCapex / Revenue
0.1%
15.9%
Cash ConversionOCF / Net Profit
7.91×
TTM Free Cash FlowTrailing 4 quarters
$45.0M
$284.3M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
APLS
APLS
KGS
KGS
Q4 25
$-14.2M
$194.9M
Q3 25
$108.5M
$113.4M
Q2 25
$4.4M
$177.2M
Q1 25
$-53.4M
$114.3M
Q4 24
$19.4M
$118.5M
Q3 24
$34.1M
$36.9M
Q2 24
$-8.3M
$121.1M
Q1 24
$-133.0M
$51.5M
Free Cash Flow
APLS
APLS
KGS
KGS
Q4 25
$-14.3M
$142.0M
Q3 25
$108.3M
$10.9M
Q2 25
$4.4M
$94.6M
Q1 25
$-53.4M
$36.8M
Q4 24
$19.3M
$45.2M
Q3 24
$-49.7M
Q2 24
$-8.4M
$4.0M
Q1 24
$-133.3M
$-8.6M
FCF Margin
APLS
APLS
KGS
KGS
Q4 25
-7.1%
42.7%
Q3 25
23.6%
3.4%
Q2 25
2.5%
29.3%
Q1 25
-32.0%
11.2%
Q4 24
9.1%
14.6%
Q3 24
-15.3%
Q2 24
-4.2%
1.3%
Q1 24
-77.3%
-4.0%
Capex Intensity
APLS
APLS
KGS
KGS
Q4 25
0.1%
15.9%
Q3 25
0.0%
31.7%
Q2 25
0.0%
25.6%
Q1 25
0.0%
23.5%
Q4 24
0.0%
23.7%
Q3 24
0.0%
26.7%
Q2 24
0.0%
37.8%
Q1 24
0.2%
27.9%
Cash Conversion
APLS
APLS
KGS
KGS
Q4 25
7.91×
Q3 25
0.50×
Q2 25
4.49×
Q1 25
3.76×
Q4 24
6.21×
Q3 24
Q2 24
19.44×
Q1 24
1.70×

Financial Flow Comparison

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

Revenue Breakdown by Segment

APLS
APLS

Syfovre$155.2M78%
Empaveli Pegcetacoplan$35.1M18%
Licensing And Other Revenue$9.6M5%

KGS
KGS

Other Services$126.8M38%
Other$112.2M34%
Transferred At Point In Time$93.8M28%

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