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Side-by-side financial comparison of Ultragenyx Pharmaceutical Inc. (RARE) and Wheels Up Experience Inc. (UP). Click either name above to swap in a different company.

Ultragenyx Pharmaceutical Inc. is the larger business by last-quarter revenue ($207.3M vs $183.8M, roughly 1.1× Wheels Up Experience Inc.). Wheels Up Experience Inc. runs the higher net margin — -15.7% vs -62.0%, a 46.3% gap on every dollar of revenue. On growth, Ultragenyx Pharmaceutical Inc. posted the faster year-over-year revenue change (25.9% vs -10.2%). Wheels Up Experience Inc. produced more free cash flow last quarter ($-58.3M vs $-100.8M). Over the past eight quarters, Ultragenyx Pharmaceutical Inc.'s revenue compounded faster (38.0% CAGR vs -3.4%).

Ultragenyx Pharmaceutical Inc. is an American biopharmaceutical company involved in the research and development of novel products for treatment of rare and ultra-rare genetic diseases for which there are typically no approved treatments and high unmet medical need. The company works with multiple drug modalities including biologics, small molecule, gene therapies, and ASO and mRNAs in the disease categories of bone, endocrine, metabolic, muscle and CNS diseases.

Wheels Up is a provider of "on demand" private aviation in the United States and one of the largest private aviation companies in the world. It was founded in 2013 by Kenny Dichter, using a membership/on-demand business model. Wheels Up members can book private aircraft from the company fleet and third-party operators using a mobile application.

RARE vs UP — Head-to-Head

Bigger by revenue
RARE
RARE
1.1× larger
RARE
$207.3M
$183.8M
UP
Growing faster (revenue YoY)
RARE
RARE
+36.1% gap
RARE
25.9%
-10.2%
UP
Higher net margin
UP
UP
46.3% more per $
UP
-15.7%
-62.0%
RARE
More free cash flow
UP
UP
$42.5M more FCF
UP
$-58.3M
$-100.8M
RARE
Faster 2-yr revenue CAGR
RARE
RARE
Annualised
RARE
38.0%
-3.4%
UP

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
RARE
RARE
UP
UP
Revenue
$207.3M
$183.8M
Net Profit
$-128.6M
$-28.9M
Gross Margin
14.3%
Operating Margin
-54.7%
-0.9%
Net Margin
-62.0%
-15.7%
Revenue YoY
25.9%
-10.2%
Net Profit YoY
3.5%
67.0%
EPS (diluted)
$-1.28
$-0.04

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
RARE
RARE
UP
UP
Q4 25
$207.3M
$183.8M
Q3 25
$159.9M
$185.5M
Q2 25
$166.5M
$189.6M
Q1 25
$139.3M
$177.5M
Q4 24
$164.6M
$204.8M
Q3 24
$139.5M
$193.9M
Q2 24
$147.0M
$196.3M
Q1 24
$108.8M
$197.1M
Net Profit
RARE
RARE
UP
UP
Q4 25
$-128.6M
$-28.9M
Q3 25
$-180.4M
$-83.7M
Q2 25
$-115.0M
$-82.3M
Q1 25
$-151.1M
$-99.3M
Q4 24
$-133.2M
$-87.5M
Q3 24
$-133.5M
$-57.7M
Q2 24
$-131.6M
$-97.0M
Q1 24
$-170.7M
$-97.4M
Gross Margin
RARE
RARE
UP
UP
Q4 25
14.3%
Q3 25
6.8%
Q2 25
8.3%
Q1 25
10.8%
Q4 24
13.9%
Q3 24
13.9%
Q2 24
2.3%
Q1 24
-0.6%
Operating Margin
RARE
RARE
UP
UP
Q4 25
-54.7%
-0.9%
Q3 25
-106.9%
-33.1%
Q2 25
-64.8%
-31.4%
Q1 25
-102.6%
-45.5%
Q4 24
-74.3%
-26.0%
Q3 24
-94.6%
-21.6%
Q2 24
-79.1%
-40.3%
Q1 24
-151.9%
-42.9%
Net Margin
RARE
RARE
UP
UP
Q4 25
-62.0%
-15.7%
Q3 25
-112.8%
-45.1%
Q2 25
-69.0%
-43.4%
Q1 25
-108.5%
-55.9%
Q4 24
-80.9%
-42.7%
Q3 24
-95.7%
-29.8%
Q2 24
-89.5%
-49.4%
Q1 24
-156.8%
-49.4%
EPS (diluted)
RARE
RARE
UP
UP
Q4 25
$-1.28
$-0.04
Q3 25
$-1.81
$-0.12
Q2 25
$-1.17
$-0.12
Q1 25
$-1.57
$-0.14
Q4 24
$-1.34
$-0.13
Q3 24
$-1.40
$-0.08
Q2 24
$-1.52
$-0.14
Q1 24
$-2.03
$-0.14

Balance Sheet & Financial Strength

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

Metric
RARE
RARE
UP
UP
Cash + ST InvestmentsLiquidity on hand
$421.0M
$133.9M
Total DebtLower is stronger
$671.3M
Stockholders' EquityBook value
$-80.0M
$-392.1M
Total Assets
$1.5B
$968.8M
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
RARE
RARE
UP
UP
Q4 25
$421.0M
$133.9M
Q3 25
$202.5M
$125.3M
Q2 25
$176.3M
$107.0M
Q1 25
$127.1M
$171.8M
Q4 24
$174.0M
$216.4M
Q3 24
$150.6M
$115.9M
Q2 24
$480.7M
$141.5M
Q1 24
$112.3M
$180.9M
Total Debt
RARE
RARE
UP
UP
Q4 25
$671.3M
Q3 25
$766.5M
Q2 25
$770.5M
Q1 25
$765.8M
Q4 24
$761.3M
Q3 24
$596.9M
Q2 24
$597.4M
Q1 24
$603.2M
Stockholders' Equity
RARE
RARE
UP
UP
Q4 25
$-80.0M
$-392.1M
Q3 25
$9.2M
$-374.5M
Q2 25
$151.3M
$-347.8M
Q1 25
$144.2M
$-288.1M
Q4 24
$255.0M
$-202.1M
Q3 24
$346.8M
$-117.7M
Q2 24
$432.4M
$-72.2M
Q1 24
$140.3M
$936.0K
Total Assets
RARE
RARE
UP
UP
Q4 25
$1.5B
$968.8M
Q3 25
$1.2B
$973.0M
Q2 25
$1.3B
$1.0B
Q1 25
$1.3B
$1.1B
Q4 24
$1.5B
$1.2B
Q3 24
$1.5B
$1.0B
Q2 24
$1.6B
$1.1B
Q1 24
$1.3B
$1.2B
Debt / Equity
RARE
RARE
UP
UP
Q4 25
Q3 25
Q2 25
Q1 25
Q4 24
Q3 24
Q2 24
Q1 24
644.43×

Cash Flow & Capital Efficiency

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

Metric
RARE
RARE
UP
UP
Operating Cash FlowLast quarter
$-99.8M
$-18.4M
Free Cash FlowOCF − Capex
$-100.8M
$-58.3M
FCF MarginFCF / Revenue
-48.6%
-31.7%
Capex IntensityCapex / Revenue
0.5%
21.7%
Cash ConversionOCF / Net Profit
TTM Free Cash FlowTrailing 4 quarters
$-472.0M
$-259.9M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
RARE
RARE
UP
UP
Q4 25
$-99.8M
$-18.4M
Q3 25
$-91.4M
$-37.1M
Q2 25
$-108.3M
$-62.9M
Q1 25
$-166.5M
$-47.9M
Q4 24
$-79.3M
$37.9M
Q3 24
$-67.0M
$-16.9M
Q2 24
$-77.0M
$-25.2M
Q1 24
$-190.7M
$-73.8M
Free Cash Flow
RARE
RARE
UP
UP
Q4 25
$-100.8M
$-58.3M
Q3 25
$-92.7M
$-60.4M
Q2 25
$-110.7M
$-78.6M
Q1 25
$-167.8M
$-62.6M
Q4 24
$-79.5M
$-70.2M
Q3 24
$-68.6M
$-21.9M
Q2 24
$-79.0M
$-30.8M
Q1 24
$-193.9M
$-77.8M
FCF Margin
RARE
RARE
UP
UP
Q4 25
-48.6%
-31.7%
Q3 25
-58.0%
-32.6%
Q2 25
-66.5%
-41.5%
Q1 25
-120.5%
-35.3%
Q4 24
-48.3%
-34.3%
Q3 24
-49.2%
-11.3%
Q2 24
-53.7%
-15.7%
Q1 24
-178.2%
-39.5%
Capex Intensity
RARE
RARE
UP
UP
Q4 25
0.5%
21.7%
Q3 25
0.8%
12.5%
Q2 25
1.5%
8.3%
Q1 25
1.0%
8.3%
Q4 24
0.1%
52.8%
Q3 24
1.2%
2.6%
Q2 24
1.4%
2.9%
Q1 24
3.0%
2.0%

Financial Flow Comparison

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

Revenue Breakdown by Segment

RARE
RARE

Royalty$105.6M51%
Products$101.7M49%

UP
UP

Segment breakdown not available.

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