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Side-by-side financial comparison of GIBRALTAR INDUSTRIES, INC. (ROCK) and TransMedics Group, Inc. (TMDX). Click either name above to swap in a different company.

GIBRALTAR INDUSTRIES, INC. is the larger business by last-quarter revenue ($225.0M vs $160.8M, roughly 1.4× TransMedics Group, Inc.). On growth, TransMedics Group, Inc. posted the faster year-over-year revenue change (32.2% vs 24.9%). GIBRALTAR INDUSTRIES, INC. produced more free cash flow last quarter ($26.2M vs $19.0M). Over the past eight quarters, TransMedics Group, Inc.'s revenue compounded faster (28.8% CAGR vs -12.3%).

Gibraltar Industries, Inc. is a leading manufacturer and distributor of specialized building, infrastructure, and renewable energy products. Its offerings include ventilation systems, roofing accessories, solar mounting solutions, and landscape and garden products, serving residential, commercial construction, and clean energy markets primarily across North America, with a focus on innovative, sustainable solutions for its customers.

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.

ROCK vs TMDX — Head-to-Head

Bigger by revenue
ROCK
ROCK
1.4× larger
ROCK
$225.0M
$160.8M
TMDX
Growing faster (revenue YoY)
TMDX
TMDX
+7.2% gap
TMDX
32.2%
24.9%
ROCK
More free cash flow
ROCK
ROCK
$7.2M more FCF
ROCK
$26.2M
$19.0M
TMDX
Faster 2-yr revenue CAGR
TMDX
TMDX
Annualised
TMDX
28.8%
-12.3%
ROCK

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
ROCK
ROCK
TMDX
TMDX
Revenue
$225.0M
$160.8M
Net Profit
$105.4M
Gross Margin
25.3%
58.1%
Operating Margin
7.9%
13.2%
Net Margin
65.6%
Revenue YoY
24.9%
32.2%
Net Profit YoY
1436.9%
EPS (diluted)
$2.59

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
ROCK
ROCK
TMDX
TMDX
Q4 25
$225.0M
$160.8M
Q3 25
$310.9M
$143.8M
Q2 25
$309.5M
$157.4M
Q1 25
$290.0M
$143.5M
Q4 24
$180.1M
$121.6M
Q3 24
$277.1M
$108.8M
Q2 24
$273.6M
$114.3M
Q1 24
$292.5M
$96.8M
Net Profit
ROCK
ROCK
TMDX
TMDX
Q4 25
$105.4M
Q3 25
$-89.1M
$24.3M
Q2 25
$26.0M
$34.9M
Q1 25
$21.1M
$25.7M
Q4 24
$6.9M
Q3 24
$34.0M
$4.2M
Q2 24
$32.2M
$12.2M
Q1 24
$24.9M
$12.2M
Gross Margin
ROCK
ROCK
TMDX
TMDX
Q4 25
25.3%
58.1%
Q3 25
26.6%
58.8%
Q2 25
28.4%
61.4%
Q1 25
26.8%
61.5%
Q4 24
29.0%
59.2%
Q3 24
29.4%
55.9%
Q2 24
30.5%
60.6%
Q1 24
28.9%
61.9%
Operating Margin
ROCK
ROCK
TMDX
TMDX
Q4 25
7.9%
13.2%
Q3 25
12.8%
16.2%
Q2 25
12.8%
23.2%
Q1 25
8.8%
19.1%
Q4 24
13.3%
7.1%
Q3 24
15.6%
3.6%
Q2 24
14.9%
10.9%
Q1 24
10.8%
12.8%
Net Margin
ROCK
ROCK
TMDX
TMDX
Q4 25
65.6%
Q3 25
-28.6%
16.9%
Q2 25
8.4%
22.2%
Q1 25
7.3%
17.9%
Q4 24
5.6%
Q3 24
12.3%
3.9%
Q2 24
11.8%
10.7%
Q1 24
8.5%
12.6%
EPS (diluted)
ROCK
ROCK
TMDX
TMDX
Q4 25
$2.59
Q3 25
$-2.98
$0.66
Q2 25
$0.87
$0.92
Q1 25
$0.70
Q4 24
$0.19
Q3 24
$1.11
$0.12
Q2 24
$1.05
$0.35
Q1 24
$0.35

Balance Sheet & Financial Strength

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

Metric
ROCK
ROCK
TMDX
TMDX
Cash + ST InvestmentsLiquidity on hand
$115.7M
Total DebtLower is stronger
$0
Stockholders' EquityBook value
$950.4M
$473.1M
Total Assets
$1.4B
$1.1B
Debt / EquityLower = less leverage
0.00×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
ROCK
ROCK
TMDX
TMDX
Q4 25
$115.7M
Q3 25
$89.4M
Q2 25
$43.3M
Q1 25
$25.1M
Q4 24
$269.5M
Q3 24
$228.9M
$330.1M
Q2 24
$179.1M
$362.8M
Q1 24
$146.7M
$350.2M
Total Debt
ROCK
ROCK
TMDX
TMDX
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
ROCK
ROCK
TMDX
TMDX
Q4 25
$950.4M
$473.1M
Q3 25
$951.8M
$355.2M
Q2 25
$1.0B
$318.1M
Q1 25
$1.0B
$266.3M
Q4 24
$1.0B
$228.6M
Q3 24
$1.0B
$209.9M
Q2 24
$975.7M
$189.9M
Q1 24
$940.2M
$159.5M
Total Assets
ROCK
ROCK
TMDX
TMDX
Q4 25
$1.4B
$1.1B
Q3 25
$1.4B
$946.0M
Q2 25
$1.5B
$890.5M
Q1 25
$1.4B
$837.5M
Q4 24
$1.4B
$804.1M
Q3 24
$1.4B
$785.6M
Q2 24
$1.4B
$758.6M
Q1 24
$1.3B
$723.8M
Debt / Equity
ROCK
ROCK
TMDX
TMDX
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
ROCK
ROCK
TMDX
TMDX
Operating Cash FlowLast quarter
$35.5M
$34.5M
Free Cash FlowOCF − Capex
$26.2M
$19.0M
FCF MarginFCF / Revenue
11.7%
11.8%
Capex IntensityCapex / Revenue
4.1%
9.7%
Cash ConversionOCF / Net Profit
0.33×
TTM Free Cash FlowTrailing 4 quarters
$120.6M
$133.6M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
ROCK
ROCK
TMDX
TMDX
Q4 25
$35.5M
$34.5M
Q3 25
$73.0M
$69.6M
Q2 25
$44.9M
$91.6M
Q1 25
$13.7M
$-2.9M
Q4 24
$19.9M
$19.7M
Q3 24
$64.7M
$6.9M
Q2 24
$36.5M
$25.7M
Q1 24
$53.2M
$-3.4M
Free Cash Flow
ROCK
ROCK
TMDX
TMDX
Q4 25
$26.2M
$19.0M
Q3 25
$64.8M
$61.9M
Q2 25
$27.3M
$82.5M
Q1 25
$2.3M
$-29.9M
Q4 24
$14.1M
$6.1M
Q3 24
$60.5M
$-41.3M
Q2 24
$33.5M
$2.0M
Q1 24
$48.8M
$-47.6M
FCF Margin
ROCK
ROCK
TMDX
TMDX
Q4 25
11.7%
11.8%
Q3 25
20.8%
43.1%
Q2 25
8.8%
52.4%
Q1 25
0.8%
-20.8%
Q4 24
7.8%
5.0%
Q3 24
21.8%
-38.0%
Q2 24
12.2%
1.7%
Q1 24
16.7%
-49.2%
Capex Intensity
ROCK
ROCK
TMDX
TMDX
Q4 25
4.1%
9.7%
Q3 25
2.6%
5.3%
Q2 25
5.7%
5.8%
Q1 25
3.9%
18.8%
Q4 24
3.3%
11.2%
Q3 24
1.5%
44.3%
Q2 24
1.1%
20.8%
Q1 24
1.5%
45.6%
Cash Conversion
ROCK
ROCK
TMDX
TMDX
Q4 25
0.33×
Q3 25
2.86×
Q2 25
1.73×
2.62×
Q1 25
0.65×
-0.11×
Q4 24
2.87×
Q3 24
1.90×
1.63×
Q2 24
1.13×
2.11×
Q1 24
2.13×
-0.28×

Financial Flow Comparison

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

Revenue Breakdown by Segment

ROCK
ROCK

Transferred At Point In Time$183.5M82%
Infrastructure$22.5M10%
Other$18.9M8%

TMDX
TMDX

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

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