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Side-by-side financial comparison of Alector, Inc. (ALEC) and HALOZYME THERAPEUTICS, INC. (HALO). Click either name above to swap in a different company.

HALOZYME THERAPEUTICS, INC. is the larger business by last-quarter revenue ($451.8M vs $6.2M, roughly 72.4× Alector, Inc.). HALOZYME THERAPEUTICS, INC. runs the higher net margin — -31.3% vs -597.5%, a 566.2% gap on every dollar of revenue. On growth, HALOZYME THERAPEUTICS, INC. posted the faster year-over-year revenue change (51.6% vs -88.5%). Over the past eight quarters, HALOZYME THERAPEUTICS, INC.'s revenue compounded faster (51.9% CAGR vs -37.4%).

Alector, Inc. is a clinical-stage biopharmaceutical company focused on developing innovative immunotherapies for neurodegenerative diseases. Its product pipeline targets unmet medical needs including Alzheimer’s disease, frontotemporal dementia, and Parkinson’s disease, and it collaborates with global pharmaceutical partners to advance candidate therapies through clinical trials.

Halozyme Therapeutics, Inc. is an American biotechnology company. It develops oncology therapies designed to target the tumor microenvironment.

ALEC vs HALO — Head-to-Head

Bigger by revenue
HALO
HALO
72.4× larger
HALO
$451.8M
$6.2M
ALEC
Growing faster (revenue YoY)
HALO
HALO
+140.1% gap
HALO
51.6%
-88.5%
ALEC
Higher net margin
HALO
HALO
566.2% more per $
HALO
-31.3%
-597.5%
ALEC
Faster 2-yr revenue CAGR
HALO
HALO
Annualised
HALO
51.9%
-37.4%
ALEC

Income Statement — Q4 2025 vs Q4 2025

Metric
ALEC
ALEC
HALO
HALO
Revenue
$6.2M
$451.8M
Net Profit
$-37.3M
$-141.6M
Gross Margin
82.6%
Operating Margin
-634.4%
-20.6%
Net Margin
-597.5%
-31.3%
Revenue YoY
-88.5%
51.6%
Net Profit YoY
-1696.9%
-203.3%
EPS (diluted)
$-0.34
$-1.13

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
ALEC
ALEC
HALO
HALO
Q4 25
$6.2M
$451.8M
Q3 25
$3.3M
$354.3M
Q2 25
$7.9M
$325.7M
Q1 25
$3.7M
$264.9M
Q4 24
$54.2M
$298.0M
Q3 24
$15.3M
$290.1M
Q2 24
$15.1M
$231.4M
Q1 24
$15.9M
$195.9M
Net Profit
ALEC
ALEC
HALO
HALO
Q4 25
$-37.3M
$-141.6M
Q3 25
$-34.7M
$175.2M
Q2 25
$-30.5M
$165.2M
Q1 25
$-40.5M
$118.1M
Q4 24
$-2.1M
$137.0M
Q3 24
$-42.2M
$137.0M
Q2 24
$-38.7M
$93.2M
Q1 24
$-36.1M
$76.8M
Gross Margin
ALEC
ALEC
HALO
HALO
Q4 25
82.6%
Q3 25
84.4%
Q2 25
85.8%
Q1 25
81.7%
Q4 24
85.9%
Q3 24
83.0%
Q2 24
82.9%
Q1 24
85.5%
Operating Margin
ALEC
ALEC
HALO
HALO
Q4 25
-634.4%
-20.6%
Q3 25
-1153.6%
61.5%
Q2 25
-433.6%
62.2%
Q1 25
-1216.5%
53.4%
Q4 24
-13.4%
58.9%
Q3 24
-315.7%
56.3%
Q2 24
-302.4%
50.7%
Q1 24
-275.0%
48.8%
Net Margin
ALEC
ALEC
HALO
HALO
Q4 25
-597.5%
-31.3%
Q3 25
-1063.4%
49.5%
Q2 25
-387.7%
50.7%
Q1 25
-1101.6%
44.6%
Q4 24
-3.8%
46.0%
Q3 24
-275.2%
47.2%
Q2 24
-256.4%
40.3%
Q1 24
-227.0%
39.2%
EPS (diluted)
ALEC
ALEC
HALO
HALO
Q4 25
$-0.34
$-1.13
Q3 25
$-0.34
$1.43
Q2 25
$-0.30
$1.33
Q1 25
$-0.41
$0.93
Q4 24
$-0.02
$1.06
Q3 24
$-0.43
$1.05
Q2 24
$-0.40
$0.72
Q1 24
$-0.38
$0.60

Balance Sheet & Financial Strength

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

Metric
ALEC
ALEC
HALO
HALO
Cash + ST InvestmentsLiquidity on hand
$256.0M
$133.8M
Total DebtLower is stronger
$10.0M
$2.1B
Stockholders' EquityBook value
$30.6M
$48.8M
Total Assets
$293.2M
$2.5B
Debt / EquityLower = less leverage
0.33×
43.89×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
ALEC
ALEC
HALO
HALO
Q4 25
$256.0M
$133.8M
Q3 25
$291.1M
$419.7M
Q2 25
$307.3M
$61.9M
Q1 25
$354.6M
$176.3M
Q4 24
$413.4M
$115.8M
Q3 24
$457.2M
$154.3M
Q2 24
$503.3M
$187.9M
Q1 24
$562.1M
$164.6M
Total Debt
ALEC
ALEC
HALO
HALO
Q4 25
$10.0M
$2.1B
Q3 25
$1.5B
Q2 25
$1.5B
Q1 25
$1.5B
Q4 24
$10.0M
$1.5B
Q3 24
$1.5B
Q2 24
$1.5B
Q1 24
$1.5B
Stockholders' Equity
ALEC
ALEC
HALO
HALO
Q4 25
$30.6M
$48.8M
Q3 25
$57.7M
$503.9M
Q2 25
$71.2M
$332.7M
Q1 25
$94.6M
$482.3M
Q4 24
$126.8M
$363.8M
Q3 24
$118.9M
$452.7M
Q2 24
$150.6M
$289.4M
Q1 24
$178.9M
$177.8M
Total Assets
ALEC
ALEC
HALO
HALO
Q4 25
$293.2M
$2.5B
Q3 25
$335.3M
$2.2B
Q2 25
$356.4M
$2.1B
Q1 25
$408.3M
$2.2B
Q4 24
$468.3M
$2.1B
Q3 24
$516.0M
$2.1B
Q2 24
$570.7M
$2.0B
Q1 24
$635.5M
$1.8B
Debt / Equity
ALEC
ALEC
HALO
HALO
Q4 25
0.33×
43.89×
Q3 25
3.00×
Q2 25
4.54×
Q1 25
3.13×
Q4 24
0.08×
4.14×
Q3 24
3.32×
Q2 24
5.19×
Q1 24
8.44×

Cash Flow & Capital Efficiency

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

Metric
ALEC
ALEC
HALO
HALO
Operating Cash FlowLast quarter
$-41.7M
$219.0M
Free Cash FlowOCF − Capex
$217.6M
FCF MarginFCF / Revenue
48.2%
Capex IntensityCapex / Revenue
0.0%
0.3%
Cash ConversionOCF / Net Profit
TTM Free Cash FlowTrailing 4 quarters
$644.6M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
ALEC
ALEC
HALO
HALO
Q4 25
$-41.7M
$219.0M
Q3 25
$-32.5M
$178.6M
Q2 25
$-49.0M
$99.7M
Q1 25
$-60.8M
$154.2M
Q4 24
$-55.0M
$178.5M
Q3 24
$-50.7M
$115.4M
Q2 24
$-62.8M
$55.8M
Q1 24
$-61.3M
$129.4M
Free Cash Flow
ALEC
ALEC
HALO
HALO
Q4 25
$217.6M
Q3 25
$-32.5M
$175.6M
Q2 25
$-49.1M
$98.1M
Q1 25
$-60.8M
$153.3M
Q4 24
$-55.2M
$175.4M
Q3 24
$-50.9M
$113.9M
Q2 24
$-63.1M
$53.2M
Q1 24
$-61.9M
$125.9M
FCF Margin
ALEC
ALEC
HALO
HALO
Q4 25
48.2%
Q3 25
-997.6%
49.6%
Q2 25
-623.0%
30.1%
Q1 25
-1655.0%
57.9%
Q4 24
-101.8%
58.9%
Q3 24
-332.1%
39.3%
Q2 24
-418.6%
23.0%
Q1 24
-389.3%
64.3%
Capex Intensity
ALEC
ALEC
HALO
HALO
Q4 25
0.0%
0.3%
Q3 25
0.3%
0.9%
Q2 25
0.1%
0.5%
Q1 25
0.5%
0.4%
Q4 24
0.3%
1.0%
Q3 24
1.4%
0.5%
Q2 24
2.2%
1.1%
Q1 24
3.4%
1.8%
Cash Conversion
ALEC
ALEC
HALO
HALO
Q4 25
Q3 25
1.02×
Q2 25
0.60×
Q1 25
1.31×
Q4 24
1.30×
Q3 24
0.84×
Q2 24
0.60×
Q1 24
1.68×

Financial Flow Comparison

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

Revenue Breakdown by Segment

ALEC
ALEC

Segment breakdown not available.

HALO
HALO

Royalty$258.0M57%
Products$122.7M27%
Proprietary Products Sales$59.6M13%
Device Partnered Products$12.9M3%

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