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Side-by-side financial comparison of MERCURY SYSTEMS INC (MRCY) and REPLIGEN CORP (RGEN). Click either name above to swap in a different company.

MERCURY SYSTEMS INC is the larger business by last-quarter revenue ($232.9M vs $197.9M, roughly 1.2× REPLIGEN CORP). REPLIGEN CORP runs the higher net margin — 6.7% vs -6.5%, a 13.2% gap on every dollar of revenue. On growth, REPLIGEN CORP posted the faster year-over-year revenue change (13.6% vs 4.4%). MERCURY SYSTEMS INC produced more free cash flow last quarter ($45.7M vs $17.6M). Over the past eight quarters, REPLIGEN CORP's revenue compounded faster (14.4% CAGR vs 5.7%).

Mercury Systems, Inc. is a technology company serving the aerospace and defense industry. It designs, develops and manufactures open architecture computer hardware and software products, including secure embedded processing modules and subsystems, avionics mission computers and displays, rugged secure computer servers, and trusted microelectronics components, modules and subsystems.

Repligen Corporation is a global life sciences company devoted to the development and commercialization of innovative bioprocessing technologies and systems that enable efficiencies in the process of manufacturing biological drugs.2025 The company is based in Waltham, Massachusetts,2014 and was incorporated in Delaware in 1981. A public company, Repligen is listed on the NASDAQ exchange under the symbol RGEN. As of 2025, Repligen employs over 1,900 employees globally and serves primarily biop...

MRCY vs RGEN — Head-to-Head

Bigger by revenue
MRCY
MRCY
1.2× larger
MRCY
$232.9M
$197.9M
RGEN
Growing faster (revenue YoY)
RGEN
RGEN
+9.3% gap
RGEN
13.6%
4.4%
MRCY
Higher net margin
RGEN
RGEN
13.2% more per $
RGEN
6.7%
-6.5%
MRCY
More free cash flow
MRCY
MRCY
$28.2M more FCF
MRCY
$45.7M
$17.6M
RGEN
Faster 2-yr revenue CAGR
RGEN
RGEN
Annualised
RGEN
14.4%
5.7%
MRCY

Income Statement — Q2 FY2026 vs Q4 FY2025

Metric
MRCY
MRCY
RGEN
RGEN
Revenue
$232.9M
$197.9M
Net Profit
$-15.1M
$13.3M
Gross Margin
26.0%
52.5%
Operating Margin
-4.6%
9.0%
Net Margin
-6.5%
6.7%
Revenue YoY
4.4%
13.6%
Net Profit YoY
14.1%
143.9%
EPS (diluted)
$-0.26
$0.24

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
MRCY
MRCY
RGEN
RGEN
Q4 25
$232.9M
$197.9M
Q3 25
$225.2M
$188.8M
Q2 25
$273.1M
$182.4M
Q1 25
$211.4M
$169.2M
Q4 24
$223.1M
$174.1M
Q3 24
$204.4M
$154.9M
Q2 24
$248.6M
$154.1M
Q1 24
$208.3M
$151.3M
Net Profit
MRCY
MRCY
RGEN
RGEN
Q4 25
$-15.1M
$13.3M
Q3 25
$-12.5M
$14.9M
Q2 25
$16.4M
$14.9M
Q1 25
$-19.2M
$5.8M
Q4 24
$-17.6M
$-30.3M
Q3 24
$-17.5M
$-654.0K
Q2 24
$-10.8M
$3.3M
Q1 24
$-44.6M
$2.1M
Gross Margin
MRCY
MRCY
RGEN
RGEN
Q4 25
26.0%
52.5%
Q3 25
27.9%
53.2%
Q2 25
31.0%
50.0%
Q1 25
27.0%
53.6%
Q4 24
27.3%
26.1%
Q3 24
25.3%
50.0%
Q2 24
29.5%
49.8%
Q1 24
19.5%
49.5%
Operating Margin
MRCY
MRCY
RGEN
RGEN
Q4 25
-4.6%
9.0%
Q3 25
-3.8%
8.9%
Q2 25
8.6%
7.6%
Q1 25
-8.2%
3.9%
Q4 24
-5.6%
-17.7%
Q3 24
-6.6%
-5.1%
Q2 24
-3.2%
1.0%
Q1 24
-21.9%
1.3%
Net Margin
MRCY
MRCY
RGEN
RGEN
Q4 25
-6.5%
6.7%
Q3 25
-5.6%
7.9%
Q2 25
6.0%
8.2%
Q1 25
-9.1%
3.4%
Q4 24
-7.9%
-17.4%
Q3 24
-8.6%
-0.4%
Q2 24
-4.3%
2.2%
Q1 24
-21.4%
1.4%
EPS (diluted)
MRCY
MRCY
RGEN
RGEN
Q4 25
$-0.26
$0.24
Q3 25
$-0.21
$0.26
Q2 25
$0.28
$0.26
Q1 25
$-0.33
$0.10
Q4 24
$-0.30
$-0.55
Q3 24
$-0.30
$-0.01
Q2 24
$-0.18
$0.06
Q1 24
$-0.77
$0.04

Balance Sheet & Financial Strength

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

Metric
MRCY
MRCY
RGEN
RGEN
Cash + ST InvestmentsLiquidity on hand
$335.0M
$767.6M
Total DebtLower is stronger
$542.2M
Stockholders' EquityBook value
$1.5B
$2.1B
Total Assets
$2.5B
$2.9B
Debt / EquityLower = less leverage
0.26×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
MRCY
MRCY
RGEN
RGEN
Q4 25
$335.0M
$767.6M
Q3 25
$304.7M
$748.7M
Q2 25
$309.1M
$708.9M
Q1 25
$269.8M
$697.2M
Q4 24
$242.6M
$757.4M
Q3 24
$158.1M
$784.0M
Q2 24
$180.5M
$809.1M
Q1 24
$142.6M
$780.6M
Total Debt
MRCY
MRCY
RGEN
RGEN
Q4 25
$542.2M
Q3 25
$537.9M
Q2 25
Q1 25
Q4 24
$525.6M
Q3 24
Q2 24
Q1 24
Stockholders' Equity
MRCY
MRCY
RGEN
RGEN
Q4 25
$1.5B
$2.1B
Q3 25
$1.5B
$2.1B
Q2 25
$1.5B
$2.1B
Q1 25
$1.5B
$2.0B
Q4 24
$1.5B
$2.0B
Q3 24
$1.5B
$2.0B
Q2 24
$1.5B
$2.0B
Q1 24
$1.5B
$2.0B
Total Assets
MRCY
MRCY
RGEN
RGEN
Q4 25
$2.5B
$2.9B
Q3 25
$2.5B
$2.9B
Q2 25
$2.4B
$2.9B
Q1 25
$2.4B
$2.9B
Q4 24
$2.4B
$2.8B
Q3 24
$2.4B
$2.8B
Q2 24
$2.4B
$2.9B
Q1 24
$2.4B
$2.8B
Debt / Equity
MRCY
MRCY
RGEN
RGEN
Q4 25
0.26×
Q3 25
0.26×
Q2 25
Q1 25
Q4 24
0.27×
Q3 24
Q2 24
Q1 24

Cash Flow & Capital Efficiency

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

Metric
MRCY
MRCY
RGEN
RGEN
Operating Cash FlowLast quarter
$51.6M
$25.7M
Free Cash FlowOCF − Capex
$45.7M
$17.6M
FCF MarginFCF / Revenue
19.6%
8.9%
Capex IntensityCapex / Revenue
2.5%
4.1%
Cash ConversionOCF / Net Profit
1.93×
TTM Free Cash FlowTrailing 4 quarters
$99.4M
$93.9M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
MRCY
MRCY
RGEN
RGEN
Q4 25
$51.6M
$25.7M
Q3 25
$2.2M
$48.1M
Q2 25
$38.1M
$28.6M
Q1 25
$30.0M
$15.0M
Q4 24
$85.5M
$39.2M
Q3 24
$-14.7M
$49.3M
Q2 24
$71.8M
$42.2M
Q1 24
$-17.8M
$44.7M
Free Cash Flow
MRCY
MRCY
RGEN
RGEN
Q4 25
$45.7M
$17.6M
Q3 25
$-4.4M
$43.4M
Q2 25
$34.0M
$21.5M
Q1 25
$24.1M
$11.4M
Q4 24
$81.9M
$33.6M
Q3 24
$-20.9M
$42.3M
Q2 24
$61.4M
$37.4M
Q1 24
$-25.7M
$36.4M
FCF Margin
MRCY
MRCY
RGEN
RGEN
Q4 25
19.6%
8.9%
Q3 25
-1.9%
23.0%
Q2 25
12.4%
11.8%
Q1 25
11.4%
6.8%
Q4 24
36.7%
19.3%
Q3 24
-10.2%
27.3%
Q2 24
24.7%
24.3%
Q1 24
-12.4%
24.0%
Capex Intensity
MRCY
MRCY
RGEN
RGEN
Q4 25
2.5%
4.1%
Q3 25
2.9%
2.5%
Q2 25
1.5%
3.9%
Q1 25
2.8%
2.1%
Q4 24
1.6%
3.2%
Q3 24
3.1%
4.5%
Q2 24
4.2%
3.1%
Q1 24
3.8%
5.5%
Cash Conversion
MRCY
MRCY
RGEN
RGEN
Q4 25
1.93×
Q3 25
3.23×
Q2 25
2.33×
1.92×
Q1 25
2.57×
Q4 24
Q3 24
Q2 24
12.70×
Q1 24
21.35×

Financial Flow Comparison

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

Revenue Breakdown by Segment

MRCY
MRCY

Airborne$84.2M36%
Components$48.7M21%
Other End Applications$36.8M16%
Electronic Warfare$27.5M12%
Other Sensor And Effector Applications$23.9M10%
Space$11.9M5%

RGEN
RGEN

Segment breakdown not available.

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