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Side-by-side financial comparison of TransMedics Group, Inc. (TMDX) and UNITED STATES LIME & MINERALS INC (USLM). Click either name above to swap in a different company.

TransMedics Group, Inc. is the larger business by last-quarter revenue ($160.8M vs $87.9M, roughly 1.8× UNITED STATES LIME & MINERALS INC). TransMedics Group, Inc. runs the higher net margin — 65.6% vs 34.7%, a 30.8% gap on every dollar of revenue. On growth, TransMedics Group, Inc. posted the faster year-over-year revenue change (32.2% vs 9.8%). UNITED STATES LIME & MINERALS INC produced more free cash flow last quarter ($25.7M vs $19.0M). Over the past eight quarters, TransMedics Group, Inc.'s revenue compounded faster (28.8% CAGR vs 10.8%).

TransMedics Group, Inc. develops and commercializes innovative medical technologies for organ transplantation. Its flagship Organ Care System keeps donor organs viable during transport, improving transplant outcomes for heart, lung, liver and kidney recipients. It serves transplant centers and organ procurement organizations across North America, Europe and Asia-Pacific.

United States Lime & Minerals Inc is a leading US-based natural resources enterprise that produces high-calcium lime, dolomitic lime, limestone and related mineral products. Its core client segments cover infrastructure construction, steel manufacturing, agricultural soil amendment, environmental emission control and industrial processing, serving customers across North America.

TMDX vs USLM — Head-to-Head

Bigger by revenue
TMDX
TMDX
1.8× larger
TMDX
$160.8M
$87.9M
USLM
Growing faster (revenue YoY)
TMDX
TMDX
+22.3% gap
TMDX
32.2%
9.8%
USLM
Higher net margin
TMDX
TMDX
30.8% more per $
TMDX
65.6%
34.7%
USLM
More free cash flow
USLM
USLM
$6.7M more FCF
USLM
$25.7M
$19.0M
TMDX
Faster 2-yr revenue CAGR
TMDX
TMDX
Annualised
TMDX
28.8%
10.8%
USLM

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
TMDX
TMDX
USLM
USLM
Revenue
$160.8M
$87.9M
Net Profit
$105.4M
$30.5M
Gross Margin
58.1%
48.0%
Operating Margin
13.2%
41.0%
Net Margin
65.6%
34.7%
Revenue YoY
32.2%
9.8%
Net Profit YoY
1436.9%
13.2%
EPS (diluted)
$2.59
$1.06

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
TMDX
TMDX
USLM
USLM
Q4 25
$160.8M
$87.9M
Q3 25
$143.8M
$102.0M
Q2 25
$157.4M
$91.5M
Q1 25
$143.5M
$91.3M
Q4 24
$121.6M
$80.1M
Q3 24
$108.8M
$89.4M
Q2 24
$114.3M
$76.5M
Q1 24
$96.8M
$71.7M
Net Profit
TMDX
TMDX
USLM
USLM
Q4 25
$105.4M
$30.5M
Q3 25
$24.3M
$38.8M
Q2 25
$34.9M
$30.8M
Q1 25
$25.7M
$34.1M
Q4 24
$6.9M
$27.0M
Q3 24
$4.2M
$33.4M
Q2 24
$12.2M
$26.1M
Q1 24
$12.2M
$22.4M
Gross Margin
TMDX
TMDX
USLM
USLM
Q4 25
58.1%
48.0%
Q3 25
58.8%
51.2%
Q2 25
61.4%
45.8%
Q1 25
61.5%
50.6%
Q4 24
59.2%
44.3%
Q3 24
55.9%
48.2%
Q2 24
60.6%
45.5%
Q1 24
61.9%
42.7%
Operating Margin
TMDX
TMDX
USLM
USLM
Q4 25
13.2%
41.0%
Q3 25
16.2%
45.3%
Q2 25
23.2%
39.0%
Q1 25
19.1%
43.7%
Q4 24
7.1%
38.8%
Q3 24
3.6%
42.6%
Q2 24
10.9%
39.1%
Q1 24
12.8%
35.9%
Net Margin
TMDX
TMDX
USLM
USLM
Q4 25
65.6%
34.7%
Q3 25
16.9%
38.0%
Q2 25
22.2%
33.7%
Q1 25
17.9%
37.4%
Q4 24
5.6%
33.7%
Q3 24
3.9%
37.3%
Q2 24
10.7%
34.0%
Q1 24
12.6%
31.3%
EPS (diluted)
TMDX
TMDX
USLM
USLM
Q4 25
$2.59
$1.06
Q3 25
$0.66
$1.35
Q2 25
$0.92
$1.07
Q1 25
$0.70
$1.19
Q4 24
$0.19
$-2.20
Q3 24
$0.12
$1.16
Q2 24
$0.35
$0.91
Q1 24
$0.35
$3.92

Balance Sheet & Financial Strength

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

Metric
TMDX
TMDX
USLM
USLM
Cash + ST InvestmentsLiquidity on hand
$371.1M
Total DebtLower is stronger
$0
Stockholders' EquityBook value
$473.1M
$630.8M
Total Assets
$1.1B
$681.0M
Debt / EquityLower = less leverage
0.00×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
TMDX
TMDX
USLM
USLM
Q4 25
$371.1M
Q3 25
$349.5M
Q2 25
$319.9M
Q1 25
$300.6M
Q4 24
$278.0M
Q3 24
$330.1M
$255.0M
Q2 24
$362.8M
$222.5M
Q1 24
$350.2M
$207.0M
Total Debt
TMDX
TMDX
USLM
USLM
Q4 25
$0
Q3 25
$0
Q2 25
$0
Q1 25
$0
Q4 24
$0
Q3 24
$0
Q2 24
$0
Q1 24
$0
Stockholders' Equity
TMDX
TMDX
USLM
USLM
Q4 25
$473.1M
$630.8M
Q3 25
$355.2M
$602.3M
Q2 25
$318.1M
$563.3M
Q1 25
$266.3M
$532.2M
Q4 24
$228.6M
$497.7M
Q3 24
$209.9M
$474.2M
Q2 24
$189.9M
$441.1M
Q1 24
$159.5M
$415.3M
Total Assets
TMDX
TMDX
USLM
USLM
Q4 25
$1.1B
$681.0M
Q3 25
$946.0M
$652.8M
Q2 25
$890.5M
$607.4M
Q1 25
$837.5M
$585.3M
Q4 24
$804.1M
$543.2M
Q3 24
$785.6M
$521.8M
Q2 24
$758.6M
$484.2M
Q1 24
$723.8M
$464.0M
Debt / Equity
TMDX
TMDX
USLM
USLM
Q4 25
0.00×
Q3 25
0.00×
Q2 25
0.00×
Q1 25
0.00×
Q4 24
0.00×
Q3 24
0.00×
Q2 24
0.00×
Q1 24
0.00×

Cash Flow & Capital Efficiency

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

Metric
TMDX
TMDX
USLM
USLM
Operating Cash FlowLast quarter
$34.5M
$45.6M
Free Cash FlowOCF − Capex
$19.0M
$25.7M
FCF MarginFCF / Revenue
11.8%
29.2%
Capex IntensityCapex / Revenue
9.7%
22.6%
Cash ConversionOCF / Net Profit
0.33×
1.49×
TTM Free Cash FlowTrailing 4 quarters
$133.6M
$102.3M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
TMDX
TMDX
USLM
USLM
Q4 25
$34.5M
$45.6M
Q3 25
$69.6M
$45.9M
Q2 25
$91.6M
$34.0M
Q1 25
$-2.9M
$39.4M
Q4 24
$19.7M
$38.6M
Q3 24
$6.9M
$39.0M
Q2 24
$25.7M
$21.2M
Q1 24
$-3.4M
$27.2M
Free Cash Flow
TMDX
TMDX
USLM
USLM
Q4 25
$19.0M
$25.7M
Q3 25
$61.9M
$31.3M
Q2 25
$82.5M
$20.8M
Q1 25
$-29.9M
$24.6M
Q4 24
$6.1M
$27.6M
Q3 24
$-41.3M
$33.9M
Q2 24
$2.0M
$16.8M
Q1 24
$-47.6M
$20.3M
FCF Margin
TMDX
TMDX
USLM
USLM
Q4 25
11.8%
29.2%
Q3 25
43.1%
30.7%
Q2 25
52.4%
22.7%
Q1 25
-20.8%
26.9%
Q4 24
5.0%
34.4%
Q3 24
-38.0%
37.9%
Q2 24
1.7%
21.9%
Q1 24
-49.2%
28.4%
Capex Intensity
TMDX
TMDX
USLM
USLM
Q4 25
9.7%
22.6%
Q3 25
5.3%
14.4%
Q2 25
5.8%
14.5%
Q1 25
18.8%
16.3%
Q4 24
11.2%
13.8%
Q3 24
44.3%
5.8%
Q2 24
20.8%
5.7%
Q1 24
45.6%
9.5%
Cash Conversion
TMDX
TMDX
USLM
USLM
Q4 25
0.33×
1.49×
Q3 25
2.86×
1.18×
Q2 25
2.62×
1.10×
Q1 25
-0.11×
1.16×
Q4 24
2.87×
1.43×
Q3 24
1.63×
1.17×
Q2 24
2.11×
0.81×
Q1 24
-0.28×
1.21×

Financial Flow Comparison

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

Revenue Breakdown by Segment

TMDX
TMDX

Liver Product$127.0M79%
Heart Product$26.0M16%
Other$5.9M4%
Lung Product$1.9M1%

USLM
USLM

Segment breakdown not available.

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