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Side-by-side financial comparison of Arq, Inc. (ARQ) and REGENXBIO Inc. (RGNX). Click either name above to swap in a different company.

REGENXBIO Inc. is the larger business by last-quarter revenue ($30.3M vs $29.4M, roughly 1.0× Arq, Inc.). On growth, REGENXBIO Inc. posted the faster year-over-year revenue change (43.0% vs 8.8%). Arq, Inc. produced more free cash flow last quarter ($-3.5M vs $-52.8M). Over the past eight quarters, REGENXBIO Inc.'s revenue compounded faster (39.4% CAGR vs 16.4%).

Arq, Inc. is a sustainable technology firm focused on processing coal mining waste to produce high-value, low-carbon solid fuels and industrial carbon products. It caters to customers across the energy, construction, and manufacturing sectors, with core markets in North America and major European regions, aiming to cut industrial waste and carbon footprints for its clients.

REGENXBIO Inc. is a clinical-stage biotechnology firm focused on gene therapy for rare severe genetic diseases. It licenses its proprietary AAV vector technology to global biopharma partners, and advances its own pipeline targeting ophthalmology, metabolic and neurodegenerative disorders.

ARQ vs RGNX — Head-to-Head

Bigger by revenue
RGNX
RGNX
1.0× larger
RGNX
$30.3M
$29.4M
ARQ
Growing faster (revenue YoY)
RGNX
RGNX
+34.2% gap
RGNX
43.0%
8.8%
ARQ
More free cash flow
ARQ
ARQ
$49.3M more FCF
ARQ
$-3.5M
$-52.8M
RGNX
Faster 2-yr revenue CAGR
RGNX
RGNX
Annualised
RGNX
39.4%
16.4%
ARQ

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
ARQ
ARQ
RGNX
RGNX
Revenue
$29.4M
$30.3M
Net Profit
$-67.1M
Gross Margin
13.6%
Operating Margin
-174.1%
-190.0%
Net Margin
-221.3%
Revenue YoY
8.8%
43.0%
Net Profit YoY
-31.2%
EPS (diluted)
$-1.20
$-1.30

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
ARQ
ARQ
RGNX
RGNX
Q4 25
$29.4M
$30.3M
Q3 25
$35.1M
$29.7M
Q2 25
$28.6M
$21.4M
Q1 25
$27.2M
$89.0M
Q4 24
$27.0M
$21.2M
Q3 24
$34.8M
$24.2M
Q2 24
$25.4M
$22.3M
Q1 24
$21.7M
$15.6M
Net Profit
ARQ
ARQ
RGNX
RGNX
Q4 25
$-67.1M
Q3 25
$-653.0K
$-61.9M
Q2 25
$-2.1M
$-70.9M
Q1 25
$203.0K
$6.1M
Q4 24
$-51.2M
Q3 24
$1.6M
$-59.6M
Q2 24
$-2.0M
$-53.0M
Q1 24
$-3.4M
$-63.3M
Gross Margin
ARQ
ARQ
RGNX
RGNX
Q4 25
13.6%
Q3 25
28.8%
Q2 25
33.3%
Q1 25
36.4%
Q4 24
36.3%
70.2%
Q3 24
38.6%
48.8%
Q2 24
32.2%
52.5%
Q1 24
36.9%
72.6%
Operating Margin
ARQ
ARQ
RGNX
RGNX
Q4 25
-174.1%
-190.0%
Q3 25
-2.4%
-176.3%
Q2 25
-5.4%
-296.3%
Q1 25
2.4%
13.6%
Q4 24
1.5%
-242.1%
Q3 24
5.8%
-256.6%
Q2 24
-5.6%
-251.3%
Q1 24
-13.7%
-408.8%
Net Margin
ARQ
ARQ
RGNX
RGNX
Q4 25
-221.3%
Q3 25
-1.9%
-208.3%
Q2 25
-7.5%
-331.8%
Q1 25
0.7%
6.8%
Q4 24
-241.3%
Q3 24
4.7%
-246.3%
Q2 24
-7.7%
-237.7%
Q1 24
-15.7%
-405.4%
EPS (diluted)
ARQ
ARQ
RGNX
RGNX
Q4 25
$-1.20
$-1.30
Q3 25
$-0.02
$-1.20
Q2 25
$-0.05
$-1.38
Q1 25
$0.00
$0.12
Q4 24
$-0.03
$-0.99
Q3 24
$0.04
$-1.17
Q2 24
$-0.06
$-1.05
Q1 24
$-0.09
$-1.38

Balance Sheet & Financial Strength

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

Metric
ARQ
ARQ
RGNX
RGNX
Cash + ST InvestmentsLiquidity on hand
$6.6M
$230.1M
Total DebtLower is stronger
$28.7M
Stockholders' EquityBook value
$168.0M
$102.7M
Total Assets
$230.6M
$453.0M
Debt / EquityLower = less leverage
0.17×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
ARQ
ARQ
RGNX
RGNX
Q4 25
$6.6M
$230.1M
Q3 25
$7.0M
$274.2M
Q2 25
$7.0M
$323.3M
Q1 25
$6.3M
$267.9M
Q4 24
$13.5M
$234.7M
Q3 24
$48.7M
$255.5M
Q2 24
$28.5M
$290.4M
Q1 24
$35.2M
$338.7M
Total Debt
ARQ
ARQ
RGNX
RGNX
Q4 25
$28.7M
Q3 25
$26.1M
Q2 25
$28.9M
Q1 25
$27.1M
Q4 24
$25.1M
Q3 24
$21.6M
Q2 24
$22.2M
Q1 24
$22.6M
Stockholders' Equity
ARQ
ARQ
RGNX
RGNX
Q4 25
$168.0M
$102.7M
Q3 25
$217.2M
$161.5M
Q2 25
$216.8M
$213.7M
Q1 25
$218.2M
$274.2M
Q4 24
$217.3M
$259.7M
Q3 24
$218.1M
$301.4M
Q2 24
$189.6M
$348.3M
Q1 24
$175.2M
$390.7M
Total Assets
ARQ
ARQ
RGNX
RGNX
Q4 25
$230.6M
$453.0M
Q3 25
$277.9M
$525.2M
Q2 25
$284.5M
$581.0M
Q1 25
$283.7M
$490.9M
Q4 24
$284.4M
$466.0M
Q3 24
$280.0M
$519.1M
Q2 24
$248.6M
$569.4M
Q1 24
$229.8M
$629.2M
Debt / Equity
ARQ
ARQ
RGNX
RGNX
Q4 25
0.17×
Q3 25
0.12×
Q2 25
0.13×
Q1 25
0.12×
Q4 24
0.12×
Q3 24
0.10×
Q2 24
0.12×
Q1 24
0.13×

Cash Flow & Capital Efficiency

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

Metric
ARQ
ARQ
RGNX
RGNX
Operating Cash FlowLast quarter
$-2.8M
$-52.3M
Free Cash FlowOCF − Capex
$-3.5M
$-52.8M
FCF MarginFCF / Revenue
-12.0%
-174.0%
Capex IntensityCapex / Revenue
2.7%
1.7%
Cash ConversionOCF / Net Profit
TTM Free Cash FlowTrailing 4 quarters
$-11.3M
$-126.4M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
ARQ
ARQ
RGNX
RGNX
Q4 25
$-2.8M
$-52.3M
Q3 25
$5.3M
$-56.0M
Q2 25
$527.0K
$-49.3M
Q1 25
$-5.8M
$33.6M
Q4 24
$5.2M
$-31.6M
Q3 24
$7.7M
$-40.5M
Q2 24
$-3.0M
$-45.5M
Q1 24
$526.0K
$-55.5M
Free Cash Flow
ARQ
ARQ
RGNX
RGNX
Q4 25
$-3.5M
$-52.8M
Q3 25
$3.1M
$-56.5M
Q2 25
$-1.4M
$-49.7M
Q1 25
$-9.5M
$32.6M
Q4 24
$-37.8M
$-32.7M
Q3 24
$-5.8M
$-40.9M
Q2 24
$-22.1M
$-46.0M
Q1 24
$-9.1M
$-56.0M
FCF Margin
ARQ
ARQ
RGNX
RGNX
Q4 25
-12.0%
-174.0%
Q3 25
8.8%
-189.9%
Q2 25
-4.7%
-232.8%
Q1 25
-34.9%
36.6%
Q4 24
-139.6%
-154.2%
Q3 24
-16.5%
-168.9%
Q2 24
-87.1%
-206.2%
Q1 24
-41.7%
-358.5%
Capex Intensity
ARQ
ARQ
RGNX
RGNX
Q4 25
2.7%
1.7%
Q3 25
6.3%
1.7%
Q2 25
6.6%
1.8%
Q1 25
13.6%
1.2%
Q4 24
158.9%
5.1%
Q3 24
38.7%
1.3%
Q2 24
75.5%
2.1%
Q1 24
44.1%
3.6%
Cash Conversion
ARQ
ARQ
RGNX
RGNX
Q4 25
Q3 25
Q2 25
Q1 25
-28.59×
5.53×
Q4 24
Q3 24
4.76×
Q2 24
Q1 24

Financial Flow Comparison

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

Revenue Breakdown by Segment

ARQ
ARQ

Segment breakdown not available.

RGNX
RGNX

Novartis Gene Therapies$24.2M80%
Nippon Shinyaku Collaboration And License Agreement$4.3M14%
Nippon Shinyaku Services$1.4M5%

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