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Side-by-side financial comparison of Alector, Inc. (ALEC) and Taysha Gene Therapies, Inc. (TSHA). Click either name above to swap in a different company.

Alector, Inc. is the larger business by last-quarter revenue ($6.2M vs $5.5M, roughly 1.1× Taysha Gene Therapies, Inc.). On growth, Taysha Gene Therapies, Inc. posted the faster year-over-year revenue change (171.3% vs -88.5%). Over the past eight quarters, Taysha Gene Therapies, Inc.'s revenue compounded faster (26.8% 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.

Taysha Gene Therapies, Inc. is a clinical-stage biotechnology company specializing in developing adeno-associated virus (AAV)-based gene therapies for rare monogenic central nervous system disorders with high unmet medical needs. Its core pipeline targets serious life-threatening neurological conditions, with primary operations and market focus across North America and European regions.

ALEC vs TSHA — Head-to-Head

Bigger by revenue
ALEC
ALEC
1.1× larger
ALEC
$6.2M
$5.5M
TSHA
Growing faster (revenue YoY)
TSHA
TSHA
+259.8% gap
TSHA
171.3%
-88.5%
ALEC
Faster 2-yr revenue CAGR
TSHA
TSHA
Annualised
TSHA
26.8%
-37.4%
ALEC

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
ALEC
ALEC
TSHA
TSHA
Revenue
$6.2M
$5.5M
Net Profit
$-27.9M
Gross Margin
Operating Margin
-516.0%
Net Margin
-507.8%
Revenue YoY
-88.5%
171.3%
Net Profit YoY
-1696.9%
-48.3%
EPS (diluted)
$-0.08

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
TSHA
TSHA
Q4 25
$6.2M
$5.5M
Q3 25
$3.3M
$0
Q2 25
$7.9M
$2.0M
Q1 25
$3.7M
$2.3M
Q4 24
$54.2M
$2.0M
Q3 24
$15.3M
$1.8M
Q2 24
$15.1M
$1.1M
Q1 24
$15.9M
$3.4M
Net Profit
ALEC
ALEC
TSHA
TSHA
Q4 25
$-27.9M
Q3 25
$-34.7M
$-32.7M
Q2 25
$-30.5M
$-26.9M
Q1 25
$-40.5M
$-21.5M
Q4 24
$-2.1M
$-18.8M
Q3 24
$-42.2M
$-25.5M
Q2 24
$-38.7M
$-20.9M
Q1 24
$-36.1M
$-24.1M
Operating Margin
ALEC
ALEC
TSHA
TSHA
Q4 25
-516.0%
Q3 25
-1153.6%
Q2 25
-433.6%
-1347.1%
Q1 25
-1216.5%
-930.5%
Q4 24
-13.4%
-985.8%
Q3 24
-315.7%
-1448.4%
Q2 24
-302.4%
-1915.4%
Q1 24
-275.0%
-713.3%
Net Margin
ALEC
ALEC
TSHA
TSHA
Q4 25
-507.8%
Q3 25
-1063.4%
Q2 25
-387.7%
-1353.6%
Q1 25
-1101.6%
-935.2%
Q4 24
-3.8%
-929.0%
Q3 24
-275.2%
-1427.5%
Q2 24
-256.4%
-1882.0%
Q1 24
-227.0%
-705.4%
EPS (diluted)
ALEC
ALEC
TSHA
TSHA
Q4 25
$-0.08
Q3 25
$-0.34
$-0.09
Q2 25
$-0.30
$-0.09
Q1 25
$-0.41
$-0.08
Q4 24
$-0.02
$-0.07
Q3 24
$-0.43
$-0.10
Q2 24
$-0.40
$-0.09
Q1 24
$-0.38
$-0.10

Balance Sheet & Financial Strength

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

Metric
ALEC
ALEC
TSHA
TSHA
Cash + ST InvestmentsLiquidity on hand
$256.0M
$319.8M
Total DebtLower is stronger
$10.0M
Stockholders' EquityBook value
$30.6M
$246.9M
Total Assets
$293.2M
$343.3M
Debt / EquityLower = less leverage
0.33×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
ALEC
ALEC
TSHA
TSHA
Q4 25
$256.0M
$319.8M
Q3 25
$291.1M
$297.3M
Q2 25
$307.3M
$312.8M
Q1 25
$354.6M
$116.6M
Q4 24
$413.4M
$139.0M
Q3 24
$457.2M
$157.7M
Q2 24
$503.3M
$172.7M
Q1 24
$562.1M
$124.0M
Total Debt
ALEC
ALEC
TSHA
TSHA
Q4 25
$10.0M
Q3 25
Q2 25
Q1 25
Q4 24
$10.0M
Q3 24
Q2 24
Q1 24
Stockholders' Equity
ALEC
ALEC
TSHA
TSHA
Q4 25
$30.6M
$246.9M
Q3 25
$57.7M
$219.0M
Q2 25
$71.2M
$248.7M
Q1 25
$94.6M
$55.1M
Q4 24
$126.8M
$71.5M
Q3 24
$118.9M
$88.8M
Q2 24
$150.6M
$108.9M
Q1 24
$178.9M
$53.8M
Total Assets
ALEC
ALEC
TSHA
TSHA
Q4 25
$293.2M
$343.3M
Q3 25
$335.3M
$316.6M
Q2 25
$356.4M
$333.3M
Q1 25
$408.3M
$138.4M
Q4 24
$468.3M
$160.4M
Q3 24
$516.0M
$180.2M
Q2 24
$570.7M
$200.4M
Q1 24
$635.5M
$153.0M
Debt / Equity
ALEC
ALEC
TSHA
TSHA
Q4 25
0.33×
Q3 25
Q2 25
Q1 25
Q4 24
0.08×
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
ALEC
ALEC
TSHA
TSHA
Operating Cash FlowLast quarter
$-184.0M
$-26.7M
Free Cash FlowOCF − Capex
$-184.1M
FCF MarginFCF / Revenue
-2951.3%
Capex IntensityCapex / Revenue
0.7%
Cash ConversionOCF / Net Profit
TTM Free Cash FlowTrailing 4 quarters
$-326.5M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
ALEC
ALEC
TSHA
TSHA
Q4 25
$-184.0M
$-26.7M
Q3 25
$-32.5M
$-24.2M
Q2 25
$-49.0M
$-20.2M
Q1 25
$-60.8M
$-22.0M
Q4 24
$-55.0M
$-18.3M
Q3 24
$-50.7M
$-21.6M
Q2 24
$-62.8M
$-21.5M
Q1 24
$-61.3M
$-19.8M
Free Cash Flow
ALEC
ALEC
TSHA
TSHA
Q4 25
$-184.1M
Q3 25
$-32.5M
$-24.3M
Q2 25
$-49.1M
Q1 25
$-60.8M
Q4 24
$-55.2M
$-18.3M
Q3 24
$-50.9M
$-21.6M
Q2 24
$-63.1M
$-21.7M
Q1 24
$-61.9M
$-19.9M
FCF Margin
ALEC
ALEC
TSHA
TSHA
Q4 25
-2951.3%
Q3 25
-997.6%
Q2 25
-623.0%
Q1 25
-1655.0%
Q4 24
-101.8%
-905.5%
Q3 24
-332.1%
-1210.9%
Q2 24
-418.6%
-1951.9%
Q1 24
-389.3%
-584.5%
Capex Intensity
ALEC
ALEC
TSHA
TSHA
Q4 25
0.7%
Q3 25
0.3%
Q2 25
0.1%
Q1 25
0.5%
Q4 24
0.3%
0.1%
Q3 24
1.4%
2.0%
Q2 24
2.2%
18.1%
Q1 24
3.4%
4.1%

Financial Flow Comparison

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

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