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Side-by-side financial comparison of Regeneron Pharmaceuticals (REGN) and SIRIUS XM HOLDINGS INC. (SIRI). Click either name above to swap in a different company.

Regeneron Pharmaceuticals is the larger business by last-quarter revenue ($3.9B vs $2.2B, roughly 1.8× SIRIUS XM HOLDINGS INC.). Regeneron Pharmaceuticals runs the higher net margin — 21.7% vs 4.5%, a 17.2% gap on every dollar of revenue. On growth, Regeneron Pharmaceuticals posted the faster year-over-year revenue change (2.5% vs 0.2%). Regeneron Pharmaceuticals produced more free cash flow last quarter ($922.0M vs $536.0M). Over the past eight quarters, Regeneron Pharmaceuticals's revenue compounded faster (11.1% CAGR vs 0.7%).

Regeneron Pharmaceuticals, Inc. is an American biotechnology company headquartered in Westchester County, New York. The company was founded in 1988. Originally focused on neurotrophic factors and their regenerative capabilities, giving rise to its present name; the company has since expanded operations into the study of both cytokine and tyrosine kinase receptors, which gave rise to their first product, which is a VEGF-trap.

XM Satellite Radio Holdings Inc. (XM) was one of the three satellite radio (SDARS) and online radio services in the United States and Canada, operated by Sirius XM Holdings. It provided pay-for-service radio, analogous to subscription cable television. Its service included 73 different music channels, 39 news, sports, talk and entertainment channels, 21 regional traffic and weather channels, and 23 play-by-play sports channels. XM channels were identified by Arbitron with the label "XM".

REGN vs SIRI — Head-to-Head

Bigger by revenue
REGN
REGN
1.8× larger
REGN
$3.9B
$2.2B
SIRI
Growing faster (revenue YoY)
REGN
REGN
+2.3% gap
REGN
2.5%
0.2%
SIRI
Higher net margin
REGN
REGN
17.2% more per $
REGN
21.7%
4.5%
SIRI
More free cash flow
REGN
REGN
$386.0M more FCF
REGN
$922.0M
$536.0M
SIRI
Faster 2-yr revenue CAGR
REGN
REGN
Annualised
REGN
11.1%
0.7%
SIRI

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
REGN
REGN
SIRI
SIRI
Revenue
$3.9B
$2.2B
Net Profit
$844.6M
$99.0M
Gross Margin
53.1%
Operating Margin
22.7%
10.3%
Net Margin
21.7%
4.5%
Revenue YoY
2.5%
0.2%
Net Profit YoY
-8.0%
-55.4%
EPS (diluted)
$7.78
$0.23

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
REGN
REGN
SIRI
SIRI
Q4 25
$3.9B
$2.2B
Q3 25
$3.8B
$2.2B
Q2 25
$3.7B
$2.1B
Q1 25
$3.0B
$2.1B
Q4 24
$3.8B
$2.2B
Q3 24
$3.7B
$2.2B
Q2 24
$3.5B
$2.2B
Q1 24
$3.1B
$2.2B
Net Profit
REGN
REGN
SIRI
SIRI
Q4 25
$844.6M
$99.0M
Q3 25
$1.5B
$297.0M
Q2 25
$1.4B
$205.0M
Q1 25
$808.7M
$204.0M
Q4 24
$917.7M
$222.0M
Q3 24
$1.3B
$-2.5B
Q2 24
$1.4B
$304.0M
Q1 24
$722.0M
$265.0M
Gross Margin
REGN
REGN
SIRI
SIRI
Q4 25
53.1%
Q3 25
52.2%
Q2 25
52.4%
Q1 25
52.0%
Q4 24
52.9%
Q3 24
53.2%
Q2 24
53.5%
Q1 24
52.5%
Operating Margin
REGN
REGN
SIRI
SIRI
Q4 25
22.7%
10.3%
Q3 25
27.3%
22.8%
Q2 25
29.4%
17.1%
Q1 25
19.5%
18.7%
Q4 24
26.1%
20.2%
Q3 24
31.7%
-133.6%
Q2 24
30.2%
23.2%
Q1 24
23.9%
20.2%
Net Margin
REGN
REGN
SIRI
SIRI
Q4 25
21.7%
4.5%
Q3 25
38.9%
13.8%
Q2 25
37.9%
9.6%
Q1 25
26.7%
9.9%
Q4 24
24.2%
10.1%
Q3 24
36.0%
-113.1%
Q2 24
40.4%
14.0%
Q1 24
23.0%
12.3%
EPS (diluted)
REGN
REGN
SIRI
SIRI
Q4 25
$7.78
$0.23
Q3 25
$13.62
$0.84
Q2 25
$12.81
$0.57
Q1 25
$7.27
$0.59
Q4 24
$8.12
$2.45
Q3 24
$11.54
$-8.74
Q2 24
$12.41
$0.08
Q1 24
$6.27
$0.07

Balance Sheet & Financial Strength

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

Metric
REGN
REGN
SIRI
SIRI
Cash + ST InvestmentsLiquidity on hand
$8.6B
$94.0M
Total DebtLower is stronger
$8.6B
Stockholders' EquityBook value
$31.3B
$11.6B
Total Assets
$40.6B
$27.2B
Debt / EquityLower = less leverage
0.75×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
REGN
REGN
SIRI
SIRI
Q4 25
$8.6B
$94.0M
Q3 25
$8.4B
$79.0M
Q2 25
$7.5B
$92.0M
Q1 25
$8.3B
$127.0M
Q4 24
$9.0B
$162.0M
Q3 24
$9.8B
$127.0M
Q2 24
$9.8B
$100.0M
Q1 24
$10.5B
$71.0M
Total Debt
REGN
REGN
SIRI
SIRI
Q4 25
$8.6B
Q3 25
$9.0B
Q2 25
$10.1B
Q1 25
$10.4B
Q4 24
$10.3B
Q3 24
$10.1B
Q2 24
$9.0B
Q1 24
$8.7B
Stockholders' Equity
REGN
REGN
SIRI
SIRI
Q4 25
$31.3B
$11.6B
Q3 25
$31.0B
$11.6B
Q2 25
$29.9B
$11.3B
Q1 25
$29.4B
$11.2B
Q4 24
$29.4B
$11.1B
Q3 24
$29.3B
$10.9B
Q2 24
$28.2B
$-2.1B
Q1 24
$27.0B
$-2.4B
Total Assets
REGN
REGN
SIRI
SIRI
Q4 25
$40.6B
$27.2B
Q3 25
$40.2B
$27.4B
Q2 25
$38.2B
$27.3B
Q1 25
$37.5B
$27.4B
Q4 24
$37.8B
$27.5B
Q3 24
$37.4B
$27.5B
Q2 24
$36.1B
$11.2B
Q1 24
$34.4B
$11.2B
Debt / Equity
REGN
REGN
SIRI
SIRI
Q4 25
0.75×
Q3 25
0.78×
Q2 25
0.89×
Q1 25
0.93×
Q4 24
0.93×
Q3 24
0.93×
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
REGN
REGN
SIRI
SIRI
Operating Cash FlowLast quarter
$1.2B
$680.0M
Free Cash FlowOCF − Capex
$922.0M
$536.0M
FCF MarginFCF / Revenue
23.7%
24.4%
Capex IntensityCapex / Revenue
6.4%
6.6%
Cash ConversionOCF / Net Profit
1.39×
6.87×
TTM Free Cash FlowTrailing 4 quarters
$4.1B
$1.2B

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
REGN
REGN
SIRI
SIRI
Q4 25
$1.2B
$680.0M
Q3 25
$1.6B
$430.0M
Q2 25
$1.1B
$546.0M
Q1 25
$1.0B
$242.0M
Q4 24
$1.3B
$679.0M
Q3 24
$1.3B
$240.0M
Q2 24
$354.0M
$514.0M
Q1 24
$1.5B
$308.0M
Free Cash Flow
REGN
REGN
SIRI
SIRI
Q4 25
$922.0M
$536.0M
Q3 25
$1.4B
$255.0M
Q2 25
$925.4M
$401.0M
Q1 25
$815.8M
$53.0M
Q4 24
$1.1B
$514.0M
Q3 24
$1.0B
$24.0M
Q2 24
$173.5M
$341.0M
Q1 24
$1.4B
$134.0M
FCF Margin
REGN
REGN
SIRI
SIRI
Q4 25
23.7%
24.4%
Q3 25
37.8%
11.8%
Q2 25
25.2%
18.8%
Q1 25
26.9%
2.6%
Q4 24
28.1%
23.5%
Q3 24
28.2%
1.1%
Q2 24
4.9%
15.7%
Q1 24
43.8%
6.2%
Capex Intensity
REGN
REGN
SIRI
SIRI
Q4 25
6.4%
6.6%
Q3 25
5.4%
8.1%
Q2 25
6.0%
6.8%
Q1 25
7.6%
9.1%
Q4 24
5.3%
7.5%
Q3 24
6.5%
9.9%
Q2 24
5.1%
7.9%
Q1 24
4.3%
8.0%
Cash Conversion
REGN
REGN
SIRI
SIRI
Q4 25
1.39×
6.87×
Q3 25
1.11×
1.45×
Q2 25
0.82×
2.66×
Q1 25
1.29×
1.19×
Q4 24
1.38×
3.06×
Q3 24
0.96×
Q2 24
0.25×
1.69×
Q1 24
2.09×
1.16×

Financial Flow Comparison

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

Revenue Breakdown by Segment

REGN
REGN

Segment breakdown not available.

SIRI
SIRI

Subscription And Circulation$1.6B74%
Advertising$491.0M22%
Cost Of Sales Equipment Products And Services$48.0M2%
Other Revenue$28.0M1%

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