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Side-by-side financial comparison of Mirum Pharmaceuticals, Inc. (MIRM) and STURM RUGER & CO INC (RGR). Click either name above to swap in a different company.

STURM RUGER & CO INC is the larger business by last-quarter revenue ($151.1M vs $148.9M, roughly 1.0× Mirum Pharmaceuticals, Inc.). On growth, Mirum Pharmaceuticals, Inc. posted the faster year-over-year revenue change (49.8% vs 3.6%). STURM RUGER & CO INC produced more free cash flow last quarter ($12.3M vs $5.5M). Over the past eight quarters, Mirum Pharmaceuticals, Inc.'s revenue compounded faster (46.7% CAGR vs 5.1%).

Mirum Pharmaceuticals, Inc. is a late-stage biopharmaceutical company focused on developing and commercializing innovative therapies for patients with rare, debilitating liver diseases that have high unmet medical needs, serving both pediatric and adult patient groups across North America, Europe and other global regions.

Sturm, Ruger & Company, Inc., better known by the shortened name Ruger, is an American firearm manufacturing company based in Southport, Connecticut, with production facilities also in Newport, New Hampshire; Mayodan, North Carolina; and Prescott, Arizona. The company was founded in 1949 by Alexander McCormick Sturm and William B. Ruger and has been publicly traded since 1969.

MIRM vs RGR — Head-to-Head

Bigger by revenue
RGR
RGR
1.0× larger
RGR
$151.1M
$148.9M
MIRM
Growing faster (revenue YoY)
MIRM
MIRM
+46.2% gap
MIRM
49.8%
3.6%
RGR
More free cash flow
RGR
RGR
$6.9M more FCF
RGR
$12.3M
$5.5M
MIRM
Faster 2-yr revenue CAGR
MIRM
MIRM
Annualised
MIRM
46.7%
5.1%
RGR

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
MIRM
MIRM
RGR
RGR
Revenue
$148.9M
$151.1M
Net Profit
$-5.7M
Gross Margin
17.8%
Operating Margin
-3.1%
2.3%
Net Margin
-3.8%
Revenue YoY
49.8%
3.6%
Net Profit YoY
75.9%
EPS (diluted)
$-0.10
$0.22

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
MIRM
MIRM
RGR
RGR
Q4 25
$148.9M
$151.1M
Q3 25
$133.0M
$126.8M
Q2 25
$127.8M
$132.5M
Q1 25
$111.6M
$135.7M
Q4 24
$99.4M
$145.8M
Q3 24
$90.4M
$122.3M
Q2 24
$77.9M
$130.8M
Q1 24
$69.2M
$136.8M
Net Profit
MIRM
MIRM
RGR
RGR
Q4 25
$-5.7M
Q3 25
$2.9M
$1.6M
Q2 25
$-5.9M
$-17.2M
Q1 25
$-14.7M
$7.8M
Q4 24
$-23.8M
Q3 24
$-14.2M
$4.7M
Q2 24
$-24.6M
$8.3M
Q1 24
$-25.3M
$7.1M
Gross Margin
MIRM
MIRM
RGR
RGR
Q4 25
17.8%
Q3 25
15.1%
Q2 25
3.9%
Q1 25
22.0%
Q4 24
22.8%
Q3 24
18.5%
Q2 24
22.3%
Q1 24
21.5%
Operating Margin
MIRM
MIRM
RGR
RGR
Q4 25
-3.1%
2.3%
Q3 25
2.0%
-2.7%
Q2 25
-3.9%
-15.6%
Q1 25
-13.6%
6.2%
Q4 24
-24.4%
7.8%
Q3 24
-14.0%
3.1%
Q2 24
-31.1%
6.9%
Q1 24
-38.2%
5.5%
Net Margin
MIRM
MIRM
RGR
RGR
Q4 25
-3.8%
Q3 25
2.2%
1.2%
Q2 25
-4.6%
-13.0%
Q1 25
-13.2%
5.7%
Q4 24
-23.9%
Q3 24
-15.8%
3.9%
Q2 24
-31.6%
6.3%
Q1 24
-36.5%
5.2%
EPS (diluted)
MIRM
MIRM
RGR
RGR
Q4 25
$-0.10
$0.22
Q3 25
$0.05
$0.10
Q2 25
$-0.12
$-1.05
Q1 25
$-0.30
$0.46
Q4 24
$-0.49
$0.62
Q3 24
$-0.30
$0.28
Q2 24
$-0.52
$0.47
Q1 24
$-0.54
$0.40

Balance Sheet & Financial Strength

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

Metric
MIRM
MIRM
RGR
RGR
Cash + ST InvestmentsLiquidity on hand
$383.3M
$92.5M
Total DebtLower is stronger
Stockholders' EquityBook value
$314.7M
$283.8M
Total Assets
$842.8M
$342.0M
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
MIRM
MIRM
RGR
RGR
Q4 25
$383.3M
$92.5M
Q3 25
$375.5M
$80.8M
Q2 25
$304.6M
$101.4M
Q1 25
$277.7M
$108.3M
Q4 24
$280.3M
$105.5M
Q3 24
$284.4M
$96.0M
Q2 24
$278.4M
$105.6M
Q1 24
$302.8M
$115.3M
Stockholders' Equity
MIRM
MIRM
RGR
RGR
Q4 25
$314.7M
$283.8M
Q3 25
$292.0M
$279.6M
Q2 25
$255.2M
$289.3M
Q1 25
$233.3M
$321.5M
Q4 24
$225.6M
$319.6M
Q3 24
$232.0M
$314.9M
Q2 24
$229.0M
$321.5M
Q1 24
$234.6M
$332.0M
Total Assets
MIRM
MIRM
RGR
RGR
Q4 25
$842.8M
$342.0M
Q3 25
$785.1M
$342.3M
Q2 25
$725.8M
$349.5M
Q1 25
$690.2M
$379.0M
Q4 24
$670.8M
$384.0M
Q3 24
$667.9M
$373.5M
Q2 24
$660.8M
$376.7M
Q1 24
$652.0M
$385.0M

Cash Flow & Capital Efficiency

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

Metric
MIRM
MIRM
RGR
RGR
Operating Cash FlowLast quarter
$6.1M
$15.5M
Free Cash FlowOCF − Capex
$5.5M
$12.3M
FCF MarginFCF / Revenue
3.7%
8.2%
Capex IntensityCapex / Revenue
0.4%
2.1%
Cash ConversionOCF / Net Profit
TTM Free Cash FlowTrailing 4 quarters
$54.9M
$38.5M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
MIRM
MIRM
RGR
RGR
Q4 25
$6.1M
$15.5M
Q3 25
$39.7M
$12.9M
Q2 25
$12.0M
$14.7M
Q1 25
$-2.0M
$11.1M
Q4 24
$-5.1M
$20.0M
Q3 24
$4.0M
$9.4M
Q2 24
$-3.8M
$18.7M
Q1 24
$15.2M
$7.3M
Free Cash Flow
MIRM
MIRM
RGR
RGR
Q4 25
$5.5M
$12.3M
Q3 25
$39.5M
$7.0M
Q2 25
$11.9M
$9.1M
Q1 25
$-2.0M
$10.0M
Q4 24
$-5.1M
$16.4M
Q3 24
$3.8M
$2.6M
Q2 24
$-4.6M
$10.1M
Q1 24
$15.2M
$5.6M
FCF Margin
MIRM
MIRM
RGR
RGR
Q4 25
3.7%
8.2%
Q3 25
29.7%
5.5%
Q2 25
9.3%
6.9%
Q1 25
-1.8%
7.4%
Q4 24
-5.1%
11.2%
Q3 24
4.2%
2.1%
Q2 24
-5.9%
7.7%
Q1 24
22.0%
4.1%
Capex Intensity
MIRM
MIRM
RGR
RGR
Q4 25
0.4%
2.1%
Q3 25
0.1%
4.6%
Q2 25
0.1%
4.2%
Q1 25
0.0%
0.8%
Q4 24
0.0%
2.5%
Q3 24
0.2%
5.5%
Q2 24
1.0%
6.6%
Q1 24
0.0%
1.3%
Cash Conversion
MIRM
MIRM
RGR
RGR
Q4 25
Q3 25
13.66×
8.15×
Q2 25
Q1 25
1.43×
Q4 24
Q3 24
1.98×
Q2 24
2.27×
Q1 24
1.04×

Financial Flow Comparison

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

Revenue Breakdown by Segment

MIRM
MIRM

Livmarli$106.4M71%
Bile Acid Medicines$42.5M29%

RGR
RGR

Firearms$150.6M100%
Castings$7.3M5%

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