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Side-by-side financial comparison of aTYR PHARMA INC (ATYR) and Bone Biologics Corp (BBLG). Click either name above to swap in a different company.

aTyr Pharma is a public biotherapeutics company that is focused on researching the extracellular functionality and signaling pathways of tRNA synthetases.

Bone Biologics Corp is a clinical-stage biotechnology firm focused on developing orthobiologic products to boost bone regeneration and healing for orthopedic surgery patients, including spinal fusion recipients. It mainly operates in the U.S. healthcare market, targeting orthopedic care and regenerative medicine segments.

ATYR vs BBLG — Head-to-Head

Bigger by revenue
BBLG
BBLG
Infinity× larger
BBLG
$255
$0
ATYR

Income Statement — Q4 FY2025 vs Q1 FY2024

Metric
ATYR
ATYR
BBLG
BBLG
Revenue
$0
$255
Net Profit
$-866.0K
Gross Margin
Operating Margin
-354327.8%
Net Margin
-339596.1%
Revenue YoY
-54.1%
Net Profit YoY
6.7%
76.7%
EPS (diluted)
$-1.31

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
ATYR
ATYR
BBLG
BBLG
Q4 25
$0
Q3 25
$190.0K
Q2 25
$0
Q1 25
$0
Q4 24
$0
Q3 24
$0
Q2 24
$0
Q1 24
$235.0K
$255
Net Profit
ATYR
ATYR
BBLG
BBLG
Q4 25
Q3 25
$-25.7M
Q2 25
$-19.5M
Q1 25
$-14.9M
Q4 24
Q3 24
$-17.3M
Q2 24
$-16.3M
Q1 24
$-15.5M
$-866.0K
Operating Margin
ATYR
ATYR
BBLG
BBLG
Q4 25
Q3 25
-14076.3%
Q2 25
Q1 25
Q4 24
Q3 24
Q2 24
Q1 24
-7079.1%
-354327.8%
Net Margin
ATYR
ATYR
BBLG
BBLG
Q4 25
Q3 25
-13549.5%
Q2 25
Q1 25
Q4 24
Q3 24
Q2 24
Q1 24
-6591.9%
-339596.1%
EPS (diluted)
ATYR
ATYR
BBLG
BBLG
Q4 25
Q3 25
$-0.26
Q2 25
$-0.22
Q1 25
$-0.17
Q4 24
Q3 24
$-0.23
Q2 24
$-0.23
Q1 24
$-0.23
$-1.31

Balance Sheet & Financial Strength

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

Metric
ATYR
ATYR
BBLG
BBLG
Cash + ST InvestmentsLiquidity on hand
$10.7M
Total DebtLower is stronger
Stockholders' EquityBook value
$67.5M
$3.7M
Total Assets
$93.0M
$3.8M
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
ATYR
ATYR
BBLG
BBLG
Q4 25
$10.7M
Q3 25
$85.2M
Q2 25
$17.2M
Q1 25
$10.4M
Q4 24
$11.1M
Q3 24
$11.5M
Q2 24
$6.8M
Q1 24
$6.8M
Stockholders' Equity
ATYR
ATYR
BBLG
BBLG
Q4 25
$67.5M
Q3 25
$80.2M
Q2 25
$74.8M
Q1 25
$75.0M
Q4 24
$70.0M
Q3 24
$65.3M
Q2 24
$81.6M
Q1 24
$84.5M
$3.7M
Total Assets
ATYR
ATYR
BBLG
BBLG
Q4 25
$93.0M
Q3 25
$106.7M
Q2 25
$101.5M
Q1 25
$97.2M
Q4 24
$96.8M
Q3 24
$91.6M
Q2 24
$105.9M
Q1 24
$113.3M
$3.8M

Cash Flow & Capital Efficiency

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

Metric
ATYR
ATYR
BBLG
BBLG
Operating Cash FlowLast quarter
$-62.0M
$-1.3M
Free Cash FlowOCF − Capex
$-62.1M
FCF MarginFCF / Revenue
Capex IntensityCapex / Revenue
Cash ConversionOCF / Net Profit
TTM Free Cash FlowTrailing 4 quarters

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
ATYR
ATYR
BBLG
BBLG
Q4 25
$-62.0M
Q3 25
$-20.5M
Q2 25
$-13.9M
Q1 25
$-15.4M
Q4 24
$-69.1M
Q3 24
$-13.2M
Q2 24
$-20.4M
Q1 24
$-22.4M
$-1.3M
Free Cash Flow
ATYR
ATYR
BBLG
BBLG
Q4 25
$-62.1M
Q3 25
$-20.5M
Q2 25
$-13.9M
Q1 25
Q4 24
$-69.2M
Q3 24
$-13.2M
Q2 24
$-20.5M
Q1 24
$-22.4M
FCF Margin
ATYR
ATYR
BBLG
BBLG
Q4 25
Q3 25
-10796.3%
Q2 25
Q1 25
Q4 24
Q3 24
Q2 24
Q1 24
-9530.6%
Capex Intensity
ATYR
ATYR
BBLG
BBLG
Q4 25
Q3 25
19.5%
Q2 25
Q1 25
Q4 24
Q3 24
Q2 24
Q1 24
7.2%

Financial Flow Comparison

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

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