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Side-by-side financial comparison of IONIS PHARMACEUTICALS INC (IONS) and Paymentus Holdings, Inc. (PAY). Click either name above to swap in a different company.

Paymentus Holdings, Inc. is the larger business by last-quarter revenue ($330.5M vs $203.3M, roughly 1.6× IONIS PHARMACEUTICALS INC). Paymentus Holdings, Inc. runs the higher net margin — 6.3% vs -112.8%, a 119.1% gap on every dollar of revenue. On growth, Paymentus Holdings, Inc. posted the faster year-over-year revenue change (28.1% vs -10.3%). Paymentus Holdings, Inc. produced more free cash flow last quarter ($45.0M vs $-159.0M). Over the past eight quarters, Paymentus Holdings, Inc.'s revenue compounded faster (33.7% CAGR vs 30.4%).

Ionis Pharmaceuticals, Inc. is a biotechnology company that specializes in discovering and developing antisense therapy, as well as RNA interference and CRISPR therapeutics. The company was founded in 1989 is based in Carlsbad, California. The company was previously known as Isis Pharmaceuticals until December 2015.

Paymentus Holdings, Inc. is a leading cloud-based bill payment and customer engagement technology provider. It offers integrated digital payment solutions, billing automation tools, and self-service portals for enterprises across utilities, financial services, government, healthcare, and telecommunications segments, primarily operating in the North American market.

IONS vs PAY — Head-to-Head

Bigger by revenue
PAY
PAY
1.6× larger
PAY
$330.5M
$203.3M
IONS
Growing faster (revenue YoY)
PAY
PAY
+38.4% gap
PAY
28.1%
-10.3%
IONS
Higher net margin
PAY
PAY
119.1% more per $
PAY
6.3%
-112.8%
IONS
More free cash flow
PAY
PAY
$204.1M more FCF
PAY
$45.0M
$-159.0M
IONS
Faster 2-yr revenue CAGR
PAY
PAY
Annualised
PAY
33.7%
30.4%
IONS

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
IONS
IONS
PAY
PAY
Revenue
$203.3M
$330.5M
Net Profit
$-229.4M
$20.7M
Gross Margin
96.1%
25.4%
Operating Margin
-105.5%
7.3%
Net Margin
-112.8%
6.3%
Revenue YoY
-10.3%
28.1%
Net Profit YoY
-119.8%
57.2%
EPS (diluted)
$-1.35
$0.16

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
IONS
IONS
PAY
PAY
Q4 25
$203.3M
$330.5M
Q3 25
$156.7M
$310.7M
Q2 25
$452.0M
$280.1M
Q1 25
$131.6M
$275.2M
Q4 24
$226.6M
$257.9M
Q3 24
$133.8M
$231.6M
Q2 24
$225.3M
$197.4M
Q1 24
$119.5M
$184.9M
Net Profit
IONS
IONS
PAY
PAY
Q4 25
$-229.4M
$20.7M
Q3 25
$-128.6M
$17.7M
Q2 25
$123.6M
$14.7M
Q1 25
$-146.9M
$13.8M
Q4 24
$-104.3M
$13.1M
Q3 24
$-140.5M
$14.4M
Q2 24
$-66.3M
$9.4M
Q1 24
$-142.8M
$7.2M
Gross Margin
IONS
IONS
PAY
PAY
Q4 25
96.1%
25.4%
Q3 25
98.5%
24.1%
Q2 25
99.1%
25.5%
Q1 25
98.9%
24.0%
Q4 24
98.3%
25.6%
Q3 24
99.2%
26.2%
Q2 24
98.2%
29.8%
Q1 24
98.2%
28.5%
Operating Margin
IONS
IONS
PAY
PAY
Q4 25
-105.5%
7.3%
Q3 25
-102.2%
6.4%
Q2 25
30.9%
5.7%
Q1 25
-111.6%
5.7%
Q4 24
-48.9%
5.5%
Q3 24
-111.1%
5.2%
Q2 24
-29.3%
5.2%
Q1 24
-125.1%
4.5%
Net Margin
IONS
IONS
PAY
PAY
Q4 25
-112.8%
6.3%
Q3 25
-82.1%
5.7%
Q2 25
27.3%
5.3%
Q1 25
-111.6%
5.0%
Q4 24
-46.1%
5.1%
Q3 24
-105.0%
6.2%
Q2 24
-29.4%
4.7%
Q1 24
-119.5%
3.9%
EPS (diluted)
IONS
IONS
PAY
PAY
Q4 25
$-1.35
$0.16
Q3 25
$-0.80
$0.14
Q2 25
$0.70
$0.11
Q1 25
$-0.93
$0.11
Q4 24
$-0.66
$0.11
Q3 24
$-0.95
$0.11
Q2 24
$-0.45
$0.07
Q1 24
$-0.98
$0.06

Balance Sheet & Financial Strength

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

Metric
IONS
IONS
PAY
PAY
Cash + ST InvestmentsLiquidity on hand
$2.7B
$320.9M
Total DebtLower is stronger
$1.8B
Stockholders' EquityBook value
$489.1M
$560.4M
Total Assets
$3.5B
$667.9M
Debt / EquityLower = less leverage
3.71×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
IONS
IONS
PAY
PAY
Q4 25
$2.7B
$320.9M
Q3 25
$2.2B
$287.9M
Q2 25
$2.3B
$266.4M
Q1 25
$2.1B
$245.8M
Q4 24
$2.3B
$205.9M
Q3 24
$2.5B
$187.5M
Q2 24
$2.1B
$188.8M
Q1 24
$2.2B
$180.1M
Total Debt
IONS
IONS
PAY
PAY
Q4 25
$1.8B
Q3 25
Q2 25
Q1 25
Q4 24
$1.3B
Q3 24
Q2 24
Q1 24
Stockholders' Equity
IONS
IONS
PAY
PAY
Q4 25
$489.1M
$560.4M
Q3 25
$618.0M
$537.4M
Q2 25
$631.7M
$516.7M
Q1 25
$475.7M
$500.4M
Q4 24
$588.4M
$485.6M
Q3 24
$662.5M
$468.8M
Q2 24
$263.7M
$451.6M
Q1 24
$296.5M
$439.4M
Total Assets
IONS
IONS
PAY
PAY
Q4 25
$3.5B
$667.9M
Q3 25
$3.0B
$644.4M
Q2 25
$3.0B
$609.5M
Q1 25
$2.8B
$590.9M
Q4 24
$3.0B
$576.2M
Q3 24
$3.1B
$552.9M
Q2 24
$2.7B
$527.7M
Q1 24
$2.8B
$514.0M
Debt / Equity
IONS
IONS
PAY
PAY
Q4 25
3.71×
Q3 25
Q2 25
Q1 25
Q4 24
2.13×
Q3 24
Q2 24
Q1 24

Cash Flow & Capital Efficiency

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

Metric
IONS
IONS
PAY
PAY
Operating Cash FlowLast quarter
$-137.7M
$45.1M
Free Cash FlowOCF − Capex
$-159.0M
$45.0M
FCF MarginFCF / Revenue
-78.2%
13.6%
Capex IntensityCapex / Revenue
10.5%
0.0%
Cash ConversionOCF / Net Profit
2.18×
TTM Free Cash FlowTrailing 4 quarters
$-320.0M
$161.8M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
IONS
IONS
PAY
PAY
Q4 25
$-137.7M
$45.1M
Q3 25
$-131.4M
$35.1M
Q2 25
$151.3M
$31.5M
Q1 25
$-150.8M
$50.4M
Q4 24
$-116.1M
$27.9M
Q3 24
$-115.0M
$6.7M
Q2 24
$-119.9M
$18.0M
Q1 24
$-149.9M
$11.0M
Free Cash Flow
IONS
IONS
PAY
PAY
Q4 25
$-159.0M
$45.0M
Q3 25
$-136.7M
$35.0M
Q2 25
$139.0M
$31.4M
Q1 25
$-163.4M
$50.4M
Q4 24
$-141.6M
$27.8M
Q3 24
$-124.0M
$6.7M
Q2 24
$-126.1M
$17.8M
Q1 24
$-154.4M
$10.8M
FCF Margin
IONS
IONS
PAY
PAY
Q4 25
-78.2%
13.6%
Q3 25
-87.2%
11.3%
Q2 25
30.8%
11.2%
Q1 25
-124.1%
18.3%
Q4 24
-62.5%
10.8%
Q3 24
-92.7%
2.9%
Q2 24
-56.0%
9.0%
Q1 24
-129.2%
5.9%
Capex Intensity
IONS
IONS
PAY
PAY
Q4 25
10.5%
0.0%
Q3 25
3.4%
0.0%
Q2 25
2.7%
0.0%
Q1 25
9.6%
0.0%
Q4 24
11.3%
0.0%
Q3 24
6.8%
0.0%
Q2 24
2.8%
0.1%
Q1 24
3.8%
0.1%
Cash Conversion
IONS
IONS
PAY
PAY
Q4 25
2.18×
Q3 25
1.98×
Q2 25
1.22×
2.14×
Q1 25
3.65×
Q4 24
2.12×
Q3 24
0.47×
Q2 24
1.93×
Q1 24
1.52×

Financial Flow Comparison

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

Revenue Breakdown by Segment

IONS
IONS

Products$58.0M29%
Spinraza Royalties$54.0M27%
Collaborative Agreement Revenue$52.4M26%
Wainus Royalties$16.0M8%
Wainua Joint Development Revenue$9.6M5%
Other Commercial$7.6M4%
Other Royalties$5.7M3%

PAY
PAY

Payment Transaction Processing Revenue$326.9M99%
Other$3.5M1%

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