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Side-by-side financial comparison of CATALYST PHARMACEUTICALS, INC. (CPRX) and PTC THERAPEUTICS, INC. (PTCT). Click either name above to swap in a different company.

PTC THERAPEUTICS, INC. is the larger business by last-quarter revenue ($164.7M vs $152.6M, roughly 1.1× CATALYST PHARMACEUTICALS, INC.). CATALYST PHARMACEUTICALS, INC. runs the higher net margin — 34.5% vs -82.0%, a 116.5% gap on every dollar of revenue. On growth, CATALYST PHARMACEUTICALS, INC. posted the faster year-over-year revenue change (7.6% vs -22.7%). CATALYST PHARMACEUTICALS, INC. produced more free cash flow last quarter ($44.9M vs $-36.6M). Over the past eight quarters, CATALYST PHARMACEUTICALS, INC.'s revenue compounded faster (24.5% CAGR vs -11.5%).

Catalyst Pharmaceuticals, Inc. is a biopharmaceutical company based in Coral Gables, Florida, United States. The company develops medicines for rare diseases, including the phosphate salt of amifampridine for the treatment of Lambert–Eaton myasthenic syndrome (LEMS). The drug is referred to under the trade name Firdapse, which was approved by the FDA for approved use in children 6 years and older with LEMS in addition to the prior approval for use in adults with LEMS on November 28, 2018. Fir...

PTC Therapeutics, Inc. is a US pharmaceutical company focused on the development of orally administered small molecule drugs and gene therapy which regulate gene expression by targeting post-transcriptional control (PTC) mechanisms in orphan diseases.

CPRX vs PTCT — Head-to-Head

Bigger by revenue
PTCT
PTCT
1.1× larger
PTCT
$164.7M
$152.6M
CPRX
Growing faster (revenue YoY)
CPRX
CPRX
+30.4% gap
CPRX
7.6%
-22.7%
PTCT
Higher net margin
CPRX
CPRX
116.5% more per $
CPRX
34.5%
-82.0%
PTCT
More free cash flow
CPRX
CPRX
$81.5M more FCF
CPRX
$44.9M
$-36.6M
PTCT
Faster 2-yr revenue CAGR
CPRX
CPRX
Annualised
CPRX
24.5%
-11.5%
PTCT

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
CPRX
CPRX
PTCT
PTCT
Revenue
$152.6M
$164.7M
Net Profit
$52.7M
$-135.0M
Gross Margin
82.9%
Operating Margin
40.5%
-43.3%
Net Margin
34.5%
-82.0%
Revenue YoY
7.6%
-22.7%
Net Profit YoY
-5.8%
-104.8%
EPS (diluted)
$0.40
$-1.63

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
CPRX
CPRX
PTCT
PTCT
Q4 25
$152.6M
$164.7M
Q3 25
$148.4M
$211.0M
Q2 25
$146.6M
$178.9M
Q1 25
$141.4M
$1.2B
Q4 24
$141.8M
$213.2M
Q3 24
$128.7M
$196.8M
Q2 24
$122.7M
$186.7M
Q1 24
$98.5M
$210.1M
Net Profit
CPRX
CPRX
PTCT
PTCT
Q4 25
$52.7M
$-135.0M
Q3 25
$52.8M
$15.9M
Q2 25
$52.1M
$-64.8M
Q1 25
$56.7M
$866.6M
Q4 24
$55.9M
$-65.9M
Q3 24
$43.9M
$-106.7M
Q2 24
$40.8M
$-99.2M
Q1 24
$23.3M
$-91.6M
Gross Margin
CPRX
CPRX
PTCT
PTCT
Q4 25
82.9%
Q3 25
84.7%
Q2 25
85.9%
Q1 25
87.3%
Q4 24
84.7%
Q3 24
85.0%
Q2 24
87.4%
Q1 24
87.3%
Operating Margin
CPRX
CPRX
PTCT
PTCT
Q4 25
40.5%
-43.3%
Q3 25
44.7%
1.4%
Q2 25
45.2%
-19.5%
Q1 25
44.8%
82.5%
Q4 24
44.3%
-76.2%
Q3 24
39.6%
-27.7%
Q2 24
44.2%
-21.5%
Q1 24
27.5%
-21.6%
Net Margin
CPRX
CPRX
PTCT
PTCT
Q4 25
34.5%
-82.0%
Q3 25
35.6%
7.5%
Q2 25
35.6%
-36.3%
Q1 25
40.1%
73.7%
Q4 24
39.4%
-30.9%
Q3 24
34.1%
-54.2%
Q2 24
33.2%
-53.1%
Q1 24
23.6%
-43.6%
EPS (diluted)
CPRX
CPRX
PTCT
PTCT
Q4 25
$0.40
$-1.63
Q3 25
$0.42
$0.20
Q2 25
$0.41
$-0.83
Q1 25
$0.45
$10.04
Q4 24
$0.44
$-0.85
Q3 24
$0.35
$-1.39
Q2 24
$0.33
$-1.29
Q1 24
$0.19
$-1.20

Balance Sheet & Financial Strength

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

Metric
CPRX
CPRX
PTCT
PTCT
Cash + ST InvestmentsLiquidity on hand
$709.2M
$1.9B
Total DebtLower is stronger
Stockholders' EquityBook value
$954.3M
$-205.3M
Total Assets
$1.1B
$2.9B
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
CPRX
CPRX
PTCT
PTCT
Q4 25
$709.2M
$1.9B
Q3 25
$689.9M
$1.7B
Q2 25
$652.8M
$2.0B
Q1 25
$580.7M
$2.0B
Q4 24
$517.6M
$1.1B
Q3 24
$442.3M
$1.0B
Q2 24
$375.7M
$1.1B
Q1 24
$310.4M
$884.8M
Stockholders' Equity
CPRX
CPRX
PTCT
PTCT
Q4 25
$954.3M
$-205.3M
Q3 25
$920.2M
$-155.8M
Q2 25
$856.0M
$-206.5M
Q1 25
$794.3M
$-185.8M
Q4 24
$727.6M
$-1.1B
Q3 24
$660.9M
$-1.1B
Q2 24
$608.7M
$-980.2M
Q1 24
$561.4M
$-893.9M
Total Assets
CPRX
CPRX
PTCT
PTCT
Q4 25
$1.1B
$2.9B
Q3 25
$1.1B
$2.6B
Q2 25
$971.9M
$2.6B
Q1 25
$908.9M
$2.7B
Q4 24
$851.4M
$1.7B
Q3 24
$772.0M
$1.8B
Q2 24
$706.4M
$1.9B
Q1 24
$646.7M
$1.8B

Cash Flow & Capital Efficiency

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

Metric
CPRX
CPRX
PTCT
PTCT
Operating Cash FlowLast quarter
$44.9M
$-34.3M
Free Cash FlowOCF − Capex
$44.9M
$-36.6M
FCF MarginFCF / Revenue
29.4%
-22.3%
Capex IntensityCapex / Revenue
0.0%
1.4%
Cash ConversionOCF / Net Profit
0.85×
TTM Free Cash FlowTrailing 4 quarters
$702.3M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
CPRX
CPRX
PTCT
PTCT
Q4 25
$44.9M
$-34.3M
Q3 25
$32.4M
$-66.3M
Q2 25
$71.3M
$-58.3M
Q1 25
$60.0M
$870.1M
Q4 24
$70.9M
$-30.0M
Q3 24
$72.9M
$-77.0M
Q2 24
$64.1M
$-71.5M
Q1 24
$31.9M
$70.8M
Free Cash Flow
CPRX
CPRX
PTCT
PTCT
Q4 25
$44.9M
$-36.6M
Q3 25
$-69.7M
Q2 25
$71.3M
$-59.6M
Q1 25
$868.4M
Q4 24
$70.8M
$-33.8M
Q3 24
$72.6M
$-77.5M
Q2 24
$64.1M
$-78.8M
Q1 24
$31.7M
$61.2M
FCF Margin
CPRX
CPRX
PTCT
PTCT
Q4 25
29.4%
-22.3%
Q3 25
-33.1%
Q2 25
48.6%
-33.3%
Q1 25
73.8%
Q4 24
49.9%
-15.8%
Q3 24
56.4%
-39.4%
Q2 24
52.3%
-42.2%
Q1 24
32.2%
29.1%
Capex Intensity
CPRX
CPRX
PTCT
PTCT
Q4 25
0.0%
1.4%
Q3 25
0.0%
1.6%
Q2 25
0.0%
0.7%
Q1 25
0.0%
0.1%
Q4 24
0.1%
1.8%
Q3 24
0.2%
0.3%
Q2 24
0.0%
4.0%
Q1 24
0.2%
4.6%
Cash Conversion
CPRX
CPRX
PTCT
PTCT
Q4 25
0.85×
Q3 25
0.61×
-4.17×
Q2 25
1.37×
Q1 25
1.06×
1.00×
Q4 24
1.27×
Q3 24
1.66×
Q2 24
1.57×
Q1 24
1.37×

Financial Flow Comparison

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

Revenue Breakdown by Segment

CPRX
CPRX

Firdapse$97.6M64%
Agamree$35.3M23%
Fycompa$19.6M13%

PTCT
PTCT

Segment breakdown not available.

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