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

Eos Energy Enterprises, Inc. is the larger business by last-quarter revenue ($58.0M vs $30.3M, roughly 1.9× REGENXBIO Inc.). Eos Energy Enterprises, Inc. runs the higher net margin — -207.7% vs -221.3%, a 13.7% gap on every dollar of revenue. On growth, Eos Energy Enterprises, Inc. posted the faster year-over-year revenue change (699.6% vs 43.0%). REGENXBIO Inc. produced more free cash flow last quarter ($-52.8M vs $-75.2M).

Eos Energy Enterprises, Inc. is an energy storage solutions provider that designs, produces and deploys safe long-duration zinc-based battery systems. It serves utility, commercial, industrial and microgrid customers across North America, Europe and Asia, supporting grid stability and renewable energy integration.

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.

EOSE vs RGNX — Head-to-Head

Bigger by revenue
EOSE
EOSE
1.9× larger
EOSE
$58.0M
$30.3M
RGNX
Growing faster (revenue YoY)
EOSE
EOSE
+656.6% gap
EOSE
699.6%
43.0%
RGNX
Higher net margin
EOSE
EOSE
13.7% more per $
EOSE
-207.7%
-221.3%
RGNX
More free cash flow
RGNX
RGNX
$22.4M more FCF
RGNX
$-52.8M
$-75.2M
EOSE

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
EOSE
EOSE
RGNX
RGNX
Revenue
$58.0M
$30.3M
Net Profit
$-120.5M
$-67.1M
Gross Margin
-93.8%
Operating Margin
-140.1%
-190.0%
Net Margin
-207.7%
-221.3%
Revenue YoY
699.6%
43.0%
Net Profit YoY
55.1%
-31.2%
EPS (diluted)
$-0.53
$-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
EOSE
EOSE
RGNX
RGNX
Q4 25
$58.0M
$30.3M
Q3 25
$30.5M
$29.7M
Q2 25
$15.2M
$21.4M
Q1 25
$10.5M
$89.0M
Q4 24
$7.3M
$21.2M
Q3 24
$24.2M
Q2 24
$22.3M
Q1 24
$15.6M
Net Profit
EOSE
EOSE
RGNX
RGNX
Q4 25
$-120.5M
$-67.1M
Q3 25
$-641.4M
$-61.9M
Q2 25
$-222.9M
$-70.9M
Q1 25
$15.1M
$6.1M
Q4 24
$-268.1M
$-51.2M
Q3 24
$-59.6M
Q2 24
$-53.0M
Q1 24
$-63.3M
Gross Margin
EOSE
EOSE
RGNX
RGNX
Q4 25
-93.8%
Q3 25
-111.2%
Q2 25
-203.2%
Q1 25
-234.7%
Q4 24
-324.0%
70.2%
Q3 24
48.8%
Q2 24
52.5%
Q1 24
72.6%
Operating Margin
EOSE
EOSE
RGNX
RGNX
Q4 25
-140.1%
-190.0%
Q3 25
-200.6%
-176.3%
Q2 25
-419.1%
-296.3%
Q1 25
-506.2%
13.6%
Q4 24
-712.8%
-242.1%
Q3 24
-256.6%
Q2 24
-251.3%
Q1 24
-408.8%
Net Margin
EOSE
EOSE
RGNX
RGNX
Q4 25
-207.7%
-221.3%
Q3 25
-2102.1%
-208.3%
Q2 25
-1463.2%
-331.8%
Q1 25
144.7%
6.8%
Q4 24
-3696.7%
-241.3%
Q3 24
-246.3%
Q2 24
-237.7%
Q1 24
-405.4%
EPS (diluted)
EOSE
EOSE
RGNX
RGNX
Q4 25
$-0.53
$-1.30
Q3 25
$-4.91
$-1.20
Q2 25
$-1.05
$-1.38
Q1 25
$-0.20
$0.12
Q4 24
$-2.30
$-0.99
Q3 24
$-1.17
Q2 24
$-1.05
Q1 24
$-1.38

Balance Sheet & Financial Strength

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

Metric
EOSE
EOSE
RGNX
RGNX
Cash + ST InvestmentsLiquidity on hand
$568.0M
$230.1M
Total DebtLower is stronger
$813.3M
Stockholders' EquityBook value
$-2.2B
$102.7M
Total Assets
$885.2M
$453.0M
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
EOSE
EOSE
RGNX
RGNX
Q4 25
$568.0M
$230.1M
Q3 25
$58.7M
$274.2M
Q2 25
$120.2M
$323.3M
Q1 25
$82.6M
$267.9M
Q4 24
$74.3M
$234.7M
Q3 24
$255.5M
Q2 24
$290.4M
Q1 24
$338.7M
Total Debt
EOSE
EOSE
RGNX
RGNX
Q4 25
$813.3M
Q3 25
$448.5M
Q2 25
$445.3M
Q1 25
$325.5M
Q4 24
$316.9M
Q3 24
Q2 24
Q1 24
Stockholders' Equity
EOSE
EOSE
RGNX
RGNX
Q4 25
$-2.2B
$102.7M
Q3 25
$-2.3B
$161.5M
Q2 25
$-1.1B
$213.7M
Q1 25
$-942.2M
$274.2M
Q4 24
$-1.1B
$259.7M
Q3 24
$301.4M
Q2 24
$348.3M
Q1 24
$390.7M
Total Assets
EOSE
EOSE
RGNX
RGNX
Q4 25
$885.2M
$453.0M
Q3 25
$328.2M
$525.2M
Q2 25
$361.0M
$581.0M
Q1 25
$263.3M
$490.9M
Q4 24
$260.3M
$466.0M
Q3 24
$519.1M
Q2 24
$569.4M
Q1 24
$629.2M

Cash Flow & Capital Efficiency

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

Metric
EOSE
EOSE
RGNX
RGNX
Operating Cash FlowLast quarter
$-50.3M
$-52.3M
Free Cash FlowOCF − Capex
$-75.2M
$-52.8M
FCF MarginFCF / Revenue
-129.7%
-174.0%
Capex IntensityCapex / Revenue
43.1%
1.7%
Cash ConversionOCF / Net Profit
TTM Free Cash FlowTrailing 4 quarters
$-265.0M
$-126.4M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
EOSE
EOSE
RGNX
RGNX
Q4 25
$-50.3M
$-52.3M
Q3 25
$-65.9M
$-56.0M
Q2 25
$-66.1M
$-49.3M
Q1 25
$-28.9M
$33.6M
Q4 24
$-42.7M
$-31.6M
Q3 24
$-40.5M
Q2 24
$-45.5M
Q1 24
$-55.5M
Free Cash Flow
EOSE
EOSE
RGNX
RGNX
Q4 25
$-75.2M
$-52.8M
Q3 25
$-82.7M
$-56.5M
Q2 25
$-73.2M
$-49.7M
Q1 25
$-33.8M
$32.6M
Q4 24
$-55.8M
$-32.7M
Q3 24
$-40.9M
Q2 24
$-46.0M
Q1 24
$-56.0M
FCF Margin
EOSE
EOSE
RGNX
RGNX
Q4 25
-129.7%
-174.0%
Q3 25
-271.1%
-189.9%
Q2 25
-480.2%
-232.8%
Q1 25
-323.6%
36.6%
Q4 24
-769.1%
-154.2%
Q3 24
-168.9%
Q2 24
-206.2%
Q1 24
-358.5%
Capex Intensity
EOSE
EOSE
RGNX
RGNX
Q4 25
43.1%
1.7%
Q3 25
55.2%
1.7%
Q2 25
46.2%
1.8%
Q1 25
47.0%
1.2%
Q4 24
180.6%
5.1%
Q3 24
1.3%
Q2 24
2.1%
Q1 24
3.6%
Cash Conversion
EOSE
EOSE
RGNX
RGNX
Q4 25
Q3 25
Q2 25
Q1 25
-1.91×
5.53×
Q4 24
Q3 24
Q2 24
Q1 24

Financial Flow Comparison

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

Revenue Breakdown by Segment

EOSE
EOSE

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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