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Side-by-side financial comparison of MANNKIND CORP (MNKD) and Ribbon Communications Inc. (RBBN). Click either name above to swap in a different company.

Ribbon Communications Inc. is the larger business by last-quarter revenue ($162.6M vs $112.0M, roughly 1.5× MANNKIND CORP). Ribbon Communications Inc. runs the higher net margin — 54.8% vs -14.2%, a 69.0% gap on every dollar of revenue. On growth, MANNKIND CORP posted the faster year-over-year revenue change (45.8% vs -10.3%). Over the past eight quarters, MANNKIND CORP's revenue compounded faster (30.0% CAGR vs -8.1%).

MannKind Corporation is a biopharmaceutical company focusing on the discovery, development, and commercialization of therapeutic products for diseases such as diabetes and pulmonary arterial hypertension. Based in Danbury, Connecticut, the company was founded in February 1991.

Ribbon Communications Inc. is a public company that makes software, IP and optical networking solutions for service providers, enterprises and critical infrastructure sectors. The company was formed in 2017, following the merger of Genband and Sonus Networks and is headquartered in Plano, Texas.

MNKD vs RBBN — Head-to-Head

Bigger by revenue
RBBN
RBBN
1.5× larger
RBBN
$162.6M
$112.0M
MNKD
Growing faster (revenue YoY)
MNKD
MNKD
+56.1% gap
MNKD
45.8%
-10.3%
RBBN
Higher net margin
RBBN
RBBN
69.0% more per $
RBBN
54.8%
-14.2%
MNKD
Faster 2-yr revenue CAGR
MNKD
MNKD
Annualised
MNKD
30.0%
-8.1%
RBBN

Income Statement — Q4 FY2025 vs Q1 FY2026

Metric
MNKD
MNKD
RBBN
RBBN
Revenue
$112.0M
$162.6M
Net Profit
$-15.9M
$89.1M
Gross Margin
87.6%
42.9%
Operating Margin
-6.9%
37.6%
Net Margin
-14.2%
54.8%
Revenue YoY
45.8%
-10.3%
Net Profit YoY
-314.9%
EPS (diluted)
$-0.05
$0.50

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
MNKD
MNKD
RBBN
RBBN
Q1 26
$162.6M
Q4 25
$112.0M
$227.3M
Q3 25
$82.1M
$215.4M
Q2 25
$76.5M
$220.6M
Q1 25
$78.4M
$181.3M
Q4 24
$76.8M
$251.4M
Q3 24
$70.1M
$210.2M
Q2 24
$72.4M
$192.6M
Net Profit
MNKD
MNKD
RBBN
RBBN
Q1 26
$89.1M
Q4 25
$-15.9M
Q3 25
$8.0M
$-12.1M
Q2 25
$668.0K
$-11.1M
Q1 25
$13.2M
$-26.2M
Q4 24
$7.4M
Q3 24
$11.6M
$-13.4M
Q2 24
$-2.0M
$-16.8M
Gross Margin
MNKD
MNKD
RBBN
RBBN
Q1 26
42.9%
Q4 25
87.6%
53.3%
Q3 25
94.5%
50.1%
Q2 25
94.0%
49.6%
Q1 25
95.2%
45.4%
Q4 24
93.7%
55.7%
Q3 24
95.4%
52.1%
Q2 24
92.3%
50.8%
Operating Margin
MNKD
MNKD
RBBN
RBBN
Q1 26
37.6%
Q4 25
-6.9%
4.1%
Q3 25
23.0%
1.3%
Q2 25
6.9%
1.9%
Q1 25
28.5%
-10.8%
Q4 24
34.5%
13.2%
Q3 24
18.2%
-0.4%
Q2 24
22.9%
-1.0%
Net Margin
MNKD
MNKD
RBBN
RBBN
Q1 26
54.8%
Q4 25
-14.2%
Q3 25
9.7%
-5.6%
Q2 25
0.9%
-5.0%
Q1 25
16.8%
-14.5%
Q4 24
9.7%
Q3 24
16.5%
-6.4%
Q2 24
-2.8%
-8.7%
EPS (diluted)
MNKD
MNKD
RBBN
RBBN
Q1 26
$0.50
Q4 25
$-0.05
$0.50
Q3 25
$0.03
$-0.07
Q2 25
$0.00
$-0.06
Q1 25
$0.04
$-0.15
Q4 24
$0.03
$0.05
Q3 24
$0.04
$-0.08
Q2 24
$-0.01
$-0.10

Balance Sheet & Financial Strength

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

Metric
MNKD
MNKD
RBBN
RBBN
Cash + ST InvestmentsLiquidity on hand
$171.3M
$67.6M
Total DebtLower is stronger
$354.6M
Stockholders' EquityBook value
$-51.0M
$419.1M
Total Assets
$792.2M
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
MNKD
MNKD
RBBN
RBBN
Q1 26
$67.6M
Q4 25
$171.3M
$96.4M
Q3 25
$260.0M
$74.8M
Q2 25
$179.0M
$60.5M
Q1 25
$181.5M
$71.2M
Q4 24
$197.3M
$87.8M
Q3 24
$251.6M
$37.2M
Q2 24
$247.8M
$64.6M
Total Debt
MNKD
MNKD
RBBN
RBBN
Q1 26
Q4 25
$354.6M
$342.1M
Q3 25
$109.7M
$344.3M
Q2 25
$36.2M
$346.5M
Q1 25
$36.1M
$347.4M
Q4 24
$36.1M
$348.3M
Q3 24
$227.9M
$349.1M
Q2 24
$227.6M
$350.0M
Stockholders' Equity
MNKD
MNKD
RBBN
RBBN
Q1 26
$419.1M
Q4 25
$-51.0M
$449.0M
Q3 25
$-44.6M
$360.1M
Q2 25
$-55.0M
$370.4M
Q1 25
$-58.6M
$381.8M
Q4 24
$-78.8M
$404.6M
Q3 24
$-209.9M
$395.5M
Q2 24
$-225.8M
$405.0M
Total Assets
MNKD
MNKD
RBBN
RBBN
Q1 26
Q4 25
$792.2M
$1.2B
Q3 25
$494.6M
$1.1B
Q2 25
$411.7M
$1.1B
Q1 25
$410.1M
$1.1B
Q4 24
$393.8M
$1.2B
Q3 24
$464.2M
$1.1B
Q2 24
$443.8M
$1.1B
Debt / Equity
MNKD
MNKD
RBBN
RBBN
Q1 26
Q4 25
0.76×
Q3 25
0.96×
Q2 25
0.94×
Q1 25
0.91×
Q4 24
0.86×
Q3 24
0.88×
Q2 24
0.86×

Cash Flow & Capital Efficiency

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

Metric
MNKD
MNKD
RBBN
RBBN
Operating Cash FlowLast quarter
$-8.0M
Free Cash FlowOCF − Capex
$-10.0M
FCF MarginFCF / Revenue
-8.9%
Capex IntensityCapex / Revenue
1.8%
Cash ConversionOCF / Net Profit
TTM Free Cash FlowTrailing 4 quarters
$13.7M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
MNKD
MNKD
RBBN
RBBN
Q1 26
Q4 25
$-8.0M
$29.2M
Q3 25
$23.6M
$26.5M
Q2 25
$8.9M
$-795.0K
Q1 25
$-6.4M
$-3.5M
Q4 24
$22.6M
$61.8M
Q3 24
$9.3M
$-14.8M
Q2 24
$3.8M
$-9.8M
Free Cash Flow
MNKD
MNKD
RBBN
RBBN
Q1 26
Q4 25
$-10.0M
$27.3M
Q3 25
$22.5M
$21.0M
Q2 25
$7.8M
$-6.5M
Q1 25
$-6.7M
$-15.7M
Q4 24
$19.7M
$53.8M
Q3 24
$7.9M
$-23.7M
Q2 24
$861.0K
$-12.9M
FCF Margin
MNKD
MNKD
RBBN
RBBN
Q1 26
Q4 25
-8.9%
12.0%
Q3 25
27.4%
9.7%
Q2 25
10.2%
-2.9%
Q1 25
-8.6%
-8.7%
Q4 24
25.7%
21.4%
Q3 24
11.3%
-11.3%
Q2 24
1.2%
-6.7%
Capex Intensity
MNKD
MNKD
RBBN
RBBN
Q1 26
Q4 25
1.8%
0.9%
Q3 25
1.4%
2.6%
Q2 25
1.5%
2.6%
Q1 25
0.4%
6.7%
Q4 24
3.8%
3.2%
Q3 24
2.0%
4.2%
Q2 24
4.1%
1.6%
Cash Conversion
MNKD
MNKD
RBBN
RBBN
Q1 26
Q4 25
Q3 25
2.96×
Q2 25
13.40×
Q1 25
-0.48×
Q4 24
3.05×
Q3 24
0.81×
Q2 24

Financial Flow Comparison

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

Revenue Breakdown by Segment

MNKD
MNKD

Products$50.4M45%
Royalty$33.6M30%
Afrezza$22.9M20%
V Go$4.3M4%

RBBN
RBBN

Service$94.5M58%
Product$68.1M42%

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