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Side-by-side financial comparison of Apellis Pharmaceuticals, Inc. (APLS) and Kiniksa Pharmaceuticals International, plc (KNSA). Click either name above to swap in a different company.

Kiniksa Pharmaceuticals International, plc is the larger business by last-quarter revenue ($202.1M vs $199.9M, roughly 1.0× Apellis Pharmaceuticals, Inc.). Kiniksa Pharmaceuticals International, plc runs the higher net margin — 7.0% vs -29.5%, a 36.5% gap on every dollar of revenue. On growth, Kiniksa Pharmaceuticals International, plc posted the faster year-over-year revenue change (65.0% vs -5.9%). Kiniksa Pharmaceuticals International, plc produced more free cash flow last quarter ($53.3M vs $-14.3M). Over the past eight quarters, Kiniksa Pharmaceuticals International, plc's revenue compounded faster (59.1% 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.

Kiniksa Pharmaceuticals International plc is a global biopharmaceutical firm focused on discovering, developing and commercializing targeted therapies for patients with unmet medical needs, primarily in autoimmune, inflammatory and rare disease segments. It operates across major markets including North America, Europe and Asia, advancing a pipeline of clinical-stage and approved treatment candidates.

APLS vs KNSA — Head-to-Head

Bigger by revenue
KNSA
KNSA
1.0× larger
KNSA
$202.1M
$199.9M
APLS
Growing faster (revenue YoY)
KNSA
KNSA
+70.9% gap
KNSA
65.0%
-5.9%
APLS
Higher net margin
KNSA
KNSA
36.5% more per $
KNSA
7.0%
-29.5%
APLS
More free cash flow
KNSA
KNSA
$67.5M more FCF
KNSA
$53.3M
$-14.3M
APLS
Faster 2-yr revenue CAGR
KNSA
KNSA
Annualised
KNSA
59.1%
7.7%
APLS

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
APLS
APLS
KNSA
KNSA
Revenue
$199.9M
$202.1M
Net Profit
$-59.0M
$14.2M
Gross Margin
89.6%
Operating Margin
-25.6%
9.8%
Net Margin
-29.5%
7.0%
Revenue YoY
-5.9%
65.0%
Net Profit YoY
-62.2%
259.8%
EPS (diluted)
$-0.40
$0.18

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
KNSA
KNSA
Q4 25
$199.9M
$202.1M
Q3 25
$458.6M
$180.9M
Q2 25
$178.5M
$156.8M
Q1 25
$166.8M
$137.8M
Q4 24
$212.5M
$122.5M
Q3 24
$196.8M
$112.2M
Q2 24
$199.7M
$108.6M
Q1 24
$172.3M
$79.9M
Net Profit
APLS
APLS
KNSA
KNSA
Q4 25
$-59.0M
$14.2M
Q3 25
$215.7M
$18.4M
Q2 25
$-42.2M
$17.8M
Q1 25
$-92.2M
$8.5M
Q4 24
$-36.4M
$-8.9M
Q3 24
$-57.4M
$-12.7M
Q2 24
$-37.7M
$-3.9M
Q1 24
$-66.4M
$-17.7M
Gross Margin
APLS
APLS
KNSA
KNSA
Q4 25
89.6%
Q3 25
88.8%
Q2 25
88.1%
Q1 25
87.0%
Q4 24
85.4%
Q3 24
82.1%
Q2 24
88.7%
Q1 24
86.7%
Operating Margin
APLS
APLS
KNSA
KNSA
Q4 25
-25.6%
9.8%
Q3 25
48.7%
13.3%
Q2 25
-18.6%
12.9%
Q1 25
-50.0%
9.6%
Q4 24
-12.3%
-15.7%
Q3 24
-24.0%
-8.6%
Q2 24
-14.7%
-0.1%
Q1 24
-36.0%
-20.7%
Net Margin
APLS
APLS
KNSA
KNSA
Q4 25
-29.5%
7.0%
Q3 25
47.0%
10.2%
Q2 25
-23.6%
11.4%
Q1 25
-55.3%
6.2%
Q4 24
-17.1%
-7.3%
Q3 24
-29.2%
-11.3%
Q2 24
-18.9%
-3.6%
Q1 24
-38.5%
-22.2%
EPS (diluted)
APLS
APLS
KNSA
KNSA
Q4 25
$-0.40
$0.18
Q3 25
$1.67
$0.23
Q2 25
$-0.33
$0.23
Q1 25
$-0.74
$0.11
Q4 24
$-0.30
$-0.11
Q3 24
$-0.46
$-0.18
Q2 24
$-0.30
$-0.06
Q1 24
$-0.54
$-0.25

Balance Sheet & Financial Strength

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

Metric
APLS
APLS
KNSA
KNSA
Cash + ST InvestmentsLiquidity on hand
$466.2M
$414.1M
Total DebtLower is stronger
Stockholders' EquityBook value
$370.1M
$567.6M
Total Assets
$1.1B
$763.6M
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
APLS
APLS
KNSA
KNSA
Q4 25
$466.2M
$414.1M
Q3 25
$479.2M
$352.1M
Q2 25
$370.0M
$307.8M
Q1 25
$358.4M
$268.3M
Q4 24
$411.3M
$243.6M
Q3 24
$396.9M
$223.8M
Q2 24
$360.1M
$218.8M
Q1 24
$325.9M
$213.6M
Total Debt
APLS
APLS
KNSA
KNSA
Q4 25
Q3 25
Q2 25
Q1 25
Q4 24
Q3 24
Q2 24
Q1 24
$93.1M
Stockholders' Equity
APLS
APLS
KNSA
KNSA
Q4 25
$370.1M
$567.6M
Q3 25
$401.2M
$535.4M
Q2 25
$156.3M
$495.0M
Q1 25
$164.2M
$457.5M
Q4 24
$228.5M
$438.4M
Q3 24
$237.1M
$437.0M
Q2 24
$264.3M
$435.1M
Q1 24
$266.7M
$431.9M
Total Assets
APLS
APLS
KNSA
KNSA
Q4 25
$1.1B
$763.6M
Q3 25
$1.1B
$712.3M
Q2 25
$821.4M
$661.1M
Q1 25
$807.3M
$599.3M
Q4 24
$885.1M
$580.6M
Q3 24
$901.9M
$555.3M
Q2 24
$904.5M
$542.4M
Q1 24
$831.9M
$519.7M
Debt / Equity
APLS
APLS
KNSA
KNSA
Q4 25
Q3 25
Q2 25
Q1 25
Q4 24
Q3 24
Q2 24
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
KNSA
KNSA
Operating Cash FlowLast quarter
$-14.2M
$53.9M
Free Cash FlowOCF − Capex
$-14.3M
$53.3M
FCF MarginFCF / Revenue
-7.1%
26.4%
Capex IntensityCapex / Revenue
0.1%
0.3%
Cash ConversionOCF / Net Profit
3.80×
TTM Free Cash FlowTrailing 4 quarters
$45.0M
$136.4M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
APLS
APLS
KNSA
KNSA
Q4 25
$-14.2M
$53.9M
Q3 25
$108.5M
$33.7M
Q2 25
$4.4M
$28.1M
Q1 25
$-53.4M
$22.3M
Q4 24
$19.4M
$18.8M
Q3 24
$34.1M
$-2.2M
Q2 24
$-8.3M
$5.2M
Q1 24
$-133.0M
$4.0M
Free Cash Flow
APLS
APLS
KNSA
KNSA
Q4 25
$-14.3M
$53.3M
Q3 25
$108.3M
$33.0M
Q2 25
$4.4M
$27.9M
Q1 25
$-53.4M
$22.2M
Q4 24
$19.3M
$18.6M
Q3 24
Q2 24
$-8.4M
Q1 24
$-133.3M
$3.9M
FCF Margin
APLS
APLS
KNSA
KNSA
Q4 25
-7.1%
26.4%
Q3 25
23.6%
18.2%
Q2 25
2.5%
17.8%
Q1 25
-32.0%
16.1%
Q4 24
9.1%
15.2%
Q3 24
Q2 24
-4.2%
Q1 24
-77.3%
4.9%
Capex Intensity
APLS
APLS
KNSA
KNSA
Q4 25
0.1%
0.3%
Q3 25
0.0%
0.4%
Q2 25
0.0%
0.1%
Q1 25
0.0%
0.1%
Q4 24
0.0%
0.2%
Q3 24
0.0%
0.0%
Q2 24
0.0%
0.0%
Q1 24
0.2%
0.1%
Cash Conversion
APLS
APLS
KNSA
KNSA
Q4 25
3.80×
Q3 25
0.50×
1.83×
Q2 25
1.58×
Q1 25
2.61×
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

APLS
APLS

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

KNSA
KNSA

Segment breakdown not available.

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