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Side-by-side financial comparison of Esperion Therapeutics, Inc. (ESPR) and Proto Labs Inc (PRLB). Click either name above to swap in a different company.

Esperion Therapeutics, Inc. is the larger business by last-quarter revenue ($168.4M vs $136.5M, roughly 1.2× Proto Labs Inc). On growth, Esperion Therapeutics, Inc. posted the faster year-over-year revenue change (143.7% vs 12.1%). Over the past eight quarters, Esperion Therapeutics, Inc.'s revenue compounded faster (10.6% CAGR vs 3.3%).

Esperion Therapeutics, Inc. is a publicly traded American pharmaceutical company focused on the development of bempedoic acid, an orally available small molecule designed to lower elevated levels of LDL-C. The company is headquartered in Ann Arbor, Michigan.

Protolabs is a company that provides rapid manufacturing of 3D printed, CNC-machined, sheet metal, and injection-molded custom parts for prototyping and production. Markets like medical devices, aerospace, electronics, appliances, automotive and consumer products use these parts. Protolabs' headquarters are located in Maple Plain, Minnesota, with Minnesota-based manufacturing facilities in Plymouth, Brooklyn Park, and Rosemount, along with additional facilities in Nashua, New Hampshire and Ca...

ESPR vs PRLB — Head-to-Head

Bigger by revenue
ESPR
ESPR
1.2× larger
ESPR
$168.4M
$136.5M
PRLB
Growing faster (revenue YoY)
ESPR
ESPR
+131.6% gap
ESPR
143.7%
12.1%
PRLB
Faster 2-yr revenue CAGR
ESPR
ESPR
Annualised
ESPR
10.6%
3.3%
PRLB

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
ESPR
ESPR
PRLB
PRLB
Revenue
$168.4M
$136.5M
Net Profit
Gross Margin
44.2%
Operating Margin
50.6%
5.0%
Net Margin
Revenue YoY
143.7%
12.1%
Net Profit YoY
EPS (diluted)
$0.32
$0.25

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
ESPR
ESPR
PRLB
PRLB
Q4 25
$168.4M
$136.5M
Q3 25
$87.3M
$135.4M
Q2 25
$82.4M
$135.1M
Q1 25
$65.0M
$126.2M
Q4 24
$69.1M
$121.8M
Q3 24
$51.6M
$125.6M
Q2 24
$73.8M
$125.6M
Q1 24
$137.7M
$127.9M
Net Profit
ESPR
ESPR
PRLB
PRLB
Q4 25
Q3 25
$-31.3M
$7.2M
Q2 25
$-12.7M
$4.4M
Q1 25
$-40.5M
$3.6M
Q4 24
Q3 24
$-29.5M
$7.2M
Q2 24
$-61.9M
$4.5M
Q1 24
$61.0M
$5.3M
Gross Margin
ESPR
ESPR
PRLB
PRLB
Q4 25
44.2%
Q3 25
45.3%
Q2 25
44.3%
Q1 25
44.1%
Q4 24
42.7%
Q3 24
45.6%
Q2 24
45.0%
Q1 24
44.9%
Operating Margin
ESPR
ESPR
PRLB
PRLB
Q4 25
50.6%
5.0%
Q3 25
-11.4%
6.5%
Q2 25
8.6%
3.7%
Q1 25
-34.0%
3.6%
Q4 24
-6.4%
-1.2%
Q3 24
-31.0%
6.8%
Q2 24
3.5%
4.8%
Q1 24
52.5%
5.3%
Net Margin
ESPR
ESPR
PRLB
PRLB
Q4 25
Q3 25
-35.9%
5.3%
Q2 25
-15.4%
3.3%
Q1 25
-62.2%
2.9%
Q4 24
Q3 24
-57.2%
5.7%
Q2 24
-83.9%
3.6%
Q1 24
44.3%
4.1%
EPS (diluted)
ESPR
ESPR
PRLB
PRLB
Q4 25
$0.32
$0.25
Q3 25
$-0.16
$0.30
Q2 25
$-0.06
$0.18
Q1 25
$-0.21
$0.15
Q4 24
$-0.14
$-0.01
Q3 24
$-0.15
$0.29
Q2 24
$-0.33
$0.18
Q1 24
$0.34
$0.20

Balance Sheet & Financial Strength

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

Metric
ESPR
ESPR
PRLB
PRLB
Cash + ST InvestmentsLiquidity on hand
$167.9M
$128.1M
Total DebtLower is stronger
Stockholders' EquityBook value
$-302.0M
$673.9M
Total Assets
$465.9M
$763.4M
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
ESPR
ESPR
PRLB
PRLB
Q4 25
$167.9M
$128.1M
Q3 25
$92.4M
$119.2M
Q2 25
$86.1M
$103.2M
Q1 25
$114.6M
$96.8M
Q4 24
$144.8M
$103.1M
Q3 24
$144.7M
$100.5M
Q2 24
$189.3M
$112.9M
Q1 24
$226.6M
$109.7M
Stockholders' Equity
ESPR
ESPR
PRLB
PRLB
Q4 25
$-302.0M
$673.9M
Q3 25
$-451.4M
$664.7M
Q2 25
$-433.5M
$664.7M
Q1 25
$-426.2M
$656.8M
Q4 24
$-388.7M
$670.2M
Q3 24
$-370.2M
$680.0M
Q2 24
$-344.2M
$685.2M
Q1 24
$-294.3M
$687.3M
Total Assets
ESPR
ESPR
PRLB
PRLB
Q4 25
$465.9M
$763.4M
Q3 25
$364.0M
$756.9M
Q2 25
$347.1M
$743.3M
Q1 25
$324.0M
$737.5M
Q4 24
$343.8M
$743.5M
Q3 24
$314.1M
$753.8M
Q2 24
$352.3M
$758.2M
Q1 24
$373.1M
$769.8M

Cash Flow & Capital Efficiency

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

Metric
ESPR
ESPR
PRLB
PRLB
Operating Cash FlowLast quarter
$45.2M
$16.5M
Free Cash FlowOCF − Capex
$8.4M
FCF MarginFCF / Revenue
6.2%
Capex IntensityCapex / Revenue
0.0%
5.9%
Cash ConversionOCF / Net Profit
TTM Free Cash FlowTrailing 4 quarters
$59.7M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
ESPR
ESPR
PRLB
PRLB
Q4 25
$45.2M
$16.5M
Q3 25
$-4.3M
$29.1M
Q2 25
$-31.4M
$10.6M
Q1 25
$-22.6M
$18.4M
Q4 24
$-35.0M
$17.3M
Q3 24
$-35.3M
$24.8M
Q2 24
$-7.2M
$14.4M
Q1 24
$53.8M
$21.3M
Free Cash Flow
ESPR
ESPR
PRLB
PRLB
Q4 25
$8.4M
Q3 25
$25.0M
Q2 25
$9.1M
Q1 25
$17.1M
Q4 24
$16.5M
Q3 24
$-35.5M
$23.2M
Q2 24
$-7.3M
$10.2M
Q1 24
$53.8M
$18.8M
FCF Margin
ESPR
ESPR
PRLB
PRLB
Q4 25
6.2%
Q3 25
18.5%
Q2 25
6.7%
Q1 25
13.6%
Q4 24
13.5%
Q3 24
-68.7%
18.5%
Q2 24
-9.9%
8.2%
Q1 24
39.0%
14.7%
Capex Intensity
ESPR
ESPR
PRLB
PRLB
Q4 25
0.0%
5.9%
Q3 25
0.0%
3.0%
Q2 25
0.0%
1.1%
Q1 25
0.0%
1.0%
Q4 24
0.0%
0.7%
Q3 24
0.3%
1.2%
Q2 24
0.1%
3.3%
Q1 24
0.1%
2.0%
Cash Conversion
ESPR
ESPR
PRLB
PRLB
Q4 25
Q3 25
4.03×
Q2 25
2.39×
Q1 25
5.11×
Q4 24
Q3 24
3.44×
Q2 24
3.18×
Q1 24
0.88×
4.05×

Financial Flow Comparison

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

Revenue Breakdown by Segment

ESPR
ESPR

Collaboration Revenue$124.7M74%
Products$43.7M26%

PRLB
PRLB

CNC Machining Firstcut$65.5M48%
Injection Molding Protomold$47.6M35%
Three D Printing Fineline$18.8M14%
Sheet Metal$4.4M3%

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