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ASMB · NASDAQ

Assembly Biosciences (ASMB) Stock Price & Fundamentals

$625.26−0.28%−$1.73End-of-day price as of Oct 9, 2026

Assembly Biosciences (ASMB) closed at $625.26 on Oct 9, 2026, down 0.28% from the previous close of $626.99.

Share price, past year

1Y +49.16%

52-week range $419.19 – $635.37. Daily closing prices.
Monthly closing prices
Last closing price of each month
DateClose
Oct 9, 2026$625.26
Sep 30, 2026$616.61
Aug 31, 2026$603.75
Jul 31, 2026$585.59
Jun 30, 2026$584.50
May 29, 2026$591.96
Apr 30, 2026$554.14
Mar 31, 2026$490.13
Feb 27, 2026$512.79
Jan 30, 2026$489.51
Dec 31, 2025$475.66
Nov 28, 2025$461.82
Oct 31, 2025$435.96

Key statistics

Market cap
$12.41B
P/E (TTM)
516.7
EPS (TTM)
$1.21
Revenue (TTM)
$74.85M
Net income (TTM)
−$42.00K
Shares outstanding
19.9M
Dividend yield
—
52-week range
$419.19 – $635.37

Assembly Biosciences's market cap is $12.41B, based on a share price of $625.26 and 19.9M shares outstanding as of Jun 30, 2026.

Financials

Assembly Biosciences reported revenue of $72.30M for fiscal 2025, up 153.52% from fiscal 2024.

Assembly Biosciences reported a net loss of $6.12M in fiscal 2025.

Annual revenue

FY16FY17FY18FY19FY20FY21FY22FY23FY24FY25
Annual revenue by fiscal year; the table below lists the values.
Assembly Biosciences annual financials by fiscal year, from SEC filings
Fiscal yearRevenueGrowthNet incomeNet marginEPS (diluted)Free cash flow
FY2025ended Dec 31, 2025$72.30M+153.5%−$6.12M−8.5%−$0.55−$41.16M
FY2024ended Dec 31, 2024$28.52M+298.2%−$40.18M−140.9%−$6.69−$51.15M
FY2023ended Dec 31, 2023$7.16M—−$61.23M−854.8%−$13.38$22.49M
FY2022ended Dec 31, 2022$0.00−100.0%−$93.09M—−$23.08−$84.57M
FY2021ended Dec 31, 2021$6.25M−92.1%−$129.86M−2,076.4%−$36.01−$96.49M
FY2020ended Dec 31, 2020$79.11M+395.6%−$62.15M−78.6%−$21.01−$63.43M
FY2019ended Dec 31, 2019$15.96M+7.8%−$97.63M−611.6%−$44.66−$85.62M
FY2018ended Dec 31, 2018$14.80M+64.1%−$90.75M−613.0%−$47.78−$65.30M
FY2017ended Dec 31, 2017$9.02M—−$42.81M−474.7%−$28.93$995.00K
FY2016ended Dec 31, 2016$0.00—−$44.26M—−$30.85−$35.03M
Assembly Biosciences quarterly results
QuarterRevenueNet incomeEPS (diluted)
Q2 FY2026ended Jun 30, 2026$13.37M−$3.86M−$0.20
Q1 FY2026ended Mar 31, 2026$8.21M−$9.08M−$0.54
Q4 FY2025ended Dec 31, 2025$42.47M$22.09M$2.67
Q3 FY2025ended Sep 30, 2025$10.79M−$9.20M−$0.72
Q2 FY2025ended Jun 30, 2025$9.63M−$10.20M−$1.33
Q1 FY2025ended Mar 31, 2025$9.42M−$8.82M−$1.17
Q4 FY2024ended Dec 31, 2024$7.36M−$10.34M−$1.54
Q3 FY2024ended Sep 30, 2024$6.85M−$9.61M−$1.51

Company profile

Name
Assembly Biosciences, Inc.
Ticker
ASMB
Exchange
NASDAQ
Industry (SEC SIC)
Pharmaceutical Preparations
Headquarters
Two Tower Place, 7th Floor, South San Francisco, CA 94080
Incorporated in
DE
Fiscal year ends
December
SEC CIK
0001426800

Recent SEC filings

Frequently asked questions

What is Assembly Biosciences's stock price?

Assembly Biosciences (ASMB) closed at $625.26 on Oct 9, 2026, down 0.28% from the previous close of $626.99.

What is Assembly Biosciences's market cap?

Assembly Biosciences's market cap is $12.41B, based on a share price of $625.26 and 19.9M shares outstanding as of Jun 30, 2026.

How much revenue does Assembly Biosciences make?

Assembly Biosciences reported revenue of $72.30M for fiscal 2025, up 153.52% from fiscal 2024.

What is ASMB's P/E ratio?

Assembly Biosciences's price-to-earnings ratio is 516.7, based on trailing twelve-month diluted EPS of $1.21.

Does Assembly Biosciences pay a dividend?

Assembly Biosciences's recent filings report no dividends declared over the last four quarters.

Sources and methodology

Fundamentals come from Assembly Biosciences, Inc.'s filings with the SEC (EDGAR XBRL company facts). Fourth-quarter figures that companies don't report separately are calculated as the fiscal year minus the first three quarters. Trailing twelve-month (TTM) figures sum the latest four quarters. Prices are generated sample data for development. Last updated Oct 9, 2026. Data sources and disclosures