Assembly Biosciences (ASMB)
NasdaqMarket Closed
Assembly Biosciences, Inc. is a clinical-stage biotechnology company developing antiviral medicines for diseases where current treatment options remain limited or inconvenient. The company focuses on small-molecule therapies aimed at viral replication and persistence, with an emphasis on herpesviruses and viral hepatitis.
Its pipeline includes long-acting helicase-primase inhibitors for recurrent genital herpes, a condition commonly managed with nucleoside analogues that may require frequent dosing. Assembly Biosciences is also advancing an oral entry inhibitor for hepatitis delta virus, a severe form of viral hepatitis that occurs only in people infected with hepatitis B virus. In hepatitis B, the company is developing a next-generation capsid assembly modulator designed to interfere with multiple stages of the HBV replication cycle.
Another area of research is transplant-related herpesvirus infection, where immunocompromised patients can face serious complications from viruses such as cytomegalovirus or other herpesviruses. Assembly’s oral broad-spectrum non-nucleoside polymerase inhibitor is intended to address this high-risk setting.
As a biotechnology stock, Assembly Biosciences is shaped by clinical trial progress, regulatory outcomes, financing needs, and the competitive landscape in antiviral drug development. The company does not resemble a diversified pharmaceutical manufacturer; its value is closely linked to whether its investigational therapies can show meaningful safety, efficacy, and dosing advantages in human studies. For investors following ASMB, the key points of interest are pipeline execution, data readouts, partnerships, and the potential market need for differentiated antiviral treatments.
Last updated
- Market Cap
- $523,968,090
- P/E
- —
- P/FCF
- —
- P/S
- 7.37
- Enterprise Value
- $492,848,090
- Sector
- Materials
- Industry
- Pharmaceutical Preparations
- Address
- TWO TOWER PLACE, SOUTH SAN FRANCISCO, CA, 94080
- Market Cap
Market cap is the total value of a company's shares, calculated by multiplying the stock price by the number of shares outstanding.
- $523,968,090
- Enterprise Value
Enterprise value is the total value of a company, including its market cap, debt, and cash.
- $492,848,090
- P/E
P/E ratio compares a company's share price to its earnings per share.
- —
- P/B
P/B ratio compares a company's share price to its book value per share.
- 2.64
- P/S
P/S ratio compares a company's share price to its revenue per share.
- 7.37
- EV / EBITDA
EV/EBITDA measures a company's value compared to its earnings before interest, taxes, depreciation, and amortization.
- -36.71
- EV / Sales
EV/Sales measures a company's value compared to its total revenue.
- 6.93
- EPS
- -0.32
- Dividend Yield
Dividend yield shows how much a company pays in dividends each year compared to its share price.
- 0%
- P/FCF
Price-to-free-cash-flow ratio compares a company's share price to the cash it generates after expenses and investments.
- —
- P/CF
P/CF ratio compares a company's share price to the cash flow it generates from its operations.
- —
- Free Cash Flow
Free cash flow is the cash a company has left after covering operating costs and capital expenses.
- -$39,836,000
- ROE
ROE measures how effectively a company uses shareholders' equity to generate profit.
- -3.21%
- ROA
ROA measures how effectively a company uses its assets to generate profit.
- -2.71%
- Debt / Equity
Debt-to-equity ratio compares a company's total debt to its shareholders' equity.
- 0
- Current Ratio
Current ratio measures a company's ability to pay short-term debts using its short-term assets.
- 6.65
- Quick Ratio
Quick ratio measures a company's ability to pay short-term debts using cash and other easily available assets.
- 6.65
- Cash
Cash ratio measures a company's ability to cover short-term debts using only cash and cash equivalents.
- 0.89
- Avg Volume
Average volume shows the average number of shares traded over the last 30 trading days, helping indicate liquidity.
- $217,378
- Fundamentals Snapshot Price
Fundamentals snapshot price is the stock price used when calculating the company's financial ratios and metrics.
- 26.44
Income Statement
| Line Item | 2026 Q2 | 2026 Q1 | 2025 Q4 | 2025 Q3 | 2025 Q2 |
|---|---|---|---|---|---|
| Revenue | 13.37M | 8.21M | 42.47M | 10.79M | 9.63M |
| Cost of revenue | 0 | 0 | 0 | 0 | 0 |
| Gross profit | 13.37M | 8.21M | 42.47M | 10.79M | 9.63M |
| Operating income | -6.34M | -11.37M | 19.8M | -10.88M | -11.09M |
| EBITDA | -6.32M | -11.34M | 19.83M | -10.85M | -11.06M |
| Net income | -3.86M | -9.08M | 22.09M | -9.2M | -10.2M |
| Income taxes | 0 | 0 | 0 | 0 | 0 |
| Interest expense | 0 | 0 | 0 | 0 | 0 |
| Other operating expenses | 0 | 0 | 0 | 0 | 0 |
| Total operating expenses | 19.72M | 19.58M | 22.67M | 21.67M | 20.72M |
| Basic EPS | -0.2 | -0.54 | 1.3 | -0.72 | -1.33 |
| Diluted EPS | -0.2 | -0.54 | 1.3 | -0.72 | -1.33 |
Balance Sheet
| Line Item | 2026 Q2 | 2026 Q1 | 2025 Q4 | 2025 Q3 | 2025 Q2 |
|---|---|---|---|---|---|
| Total assets | 330.83M | 235.51M | 257.59M | 240M | 80.78M |
| Total liabilities | 25.18M | 36.9M | 50.84M | 57.3M | 62.68M |
| Total equity | 305.65M | 198.61M | 206.75M | 182.7M | 18.1M |
| Cash & equivalents | 32.29M | 31.12M | 58.45M | 22.53M | 24.01M |
| Current assets | 327.98M | 232.61M | 254.55M | 236.81M | 77.47M |
| Current liabilities | 23.45M | 35M | 48.78M | 53.38M | 47.29M |
| Accounts payable | 1.18M | 1.13M | 1.17M | 1.68M | 743K |
| Receivables | 822K | 451K | 974K | 912K | 0 |
| Inventories | 0 | 0 | 0 | 0 | 0 |
| Goodwill | 0 | 0 | 0 | 0 | 0 |
| Long-term debt | 0 | 0 | 0 | 0 | 0 |
Cash Flow
| Line Item | 2026 Q2 | 2026 Q1 | 2025 Q4 | 2025 Q3 | 2025 Q2 |
|---|---|---|---|---|---|
| Operating cash flow | -15.49M | -22.1M | 14.24M | -15.13M | -16.76M |
| Investing cash flow | -92.08M | -5.38M | 21.22M | -158.27M | 16.99M |
| Financing cash flow | 108.74M | 149K | 456K | 171.93M | 357K |
| Change in cash | 1.17M | -27.33M | 35.92M | -1.47M | 593K |
| Net income | -3.86M | -9.08M | 22.09M | -9.2M | -10.2M |
| Kind | Filing | Date | Link |
|---|---|---|---|
| edgar index | SCHEDULE 13G/A — ASSEMBLY BIOSCIENCES, INC. | View Filing | |
| edgar index | 8-K/A — ASSEMBLY BIOSCIENCES, INC. | View Filing | |
| edgar index | 8-K — ASSEMBLY BIOSCIENCES, INC. | View Filing | |
| edgar index | 10-Q — ASSEMBLY BIOSCIENCES, INC. | View Filing | |
| edgar index | SCHEDULE 13G/A — ASSEMBLY BIOSCIENCES, INC. | View Filing | |
| eight k text | 8-K — 8-K | View Filing | |
| edgar index | SCHEDULE 13G/A — ASSEMBLY BIOSCIENCES, INC. | View Filing | |
| edgar index | 4 — ASSEMBLY BIOSCIENCES, INC. | View Filing | |
| form 4 | Form 4 — Bjorkquist Jeanette M | View Filing | |
| edgar index | 8-K — ASSEMBLY BIOSCIENCES, INC. | View Filing | |
| edgar index | 4 — ASSEMBLY BIOSCIENCES, INC. | View Filing | |
| edgar index | 4 — ASSEMBLY BIOSCIENCES, INC. | View Filing | |
| edgar index | 4 — ASSEMBLY BIOSCIENCES, INC. | View Filing | |
| edgar index | 4 — ASSEMBLY BIOSCIENCES, INC. | View Filing | |
| edgar index | 4 — ASSEMBLY BIOSCIENCES, INC. | View Filing | |
| edgar index | 4 — ASSEMBLY BIOSCIENCES, INC. | View Filing | |
| edgar index | 4 — ASSEMBLY BIOSCIENCES, INC. | View Filing | |
| edgar index | 4 — ASSEMBLY BIOSCIENCES, INC. | View Filing | |
| edgar index | 4 — ASSEMBLY BIOSCIENCES, INC. | View Filing | |
| edgar index | 4 — ASSEMBLY BIOSCIENCES, INC. | View Filing | |
| edgar index | 4 — ASSEMBLY BIOSCIENCES, INC. | View Filing | |
| eight k text | 8-K — 8-K | View Filing | |
| form 4 | Form 4 — ALTIG ANTHONY E | View Filing | |
| form 4 | Form 4 — Consylman Gina | View Filing | |
| form 4 | Form 4 — Houghton Michael | View Filing | |
| form 4 | Form 4 — Johnson-Pratt Lisa | View Filing | |
| form 4 | Form 4 — Mahony Susan | View Filing | |
| form 4 | Form 4 — McHutchison John G | View Filing | |
| edgar index | SCHEDULE 13D/A — ASSEMBLY BIOSCIENCES, INC. | View Filing | |
| edgar index | 4 — ASSEMBLY BIOSCIENCES, INC. | View Filing | |
| edgar index | 424B5 — ASSEMBLY BIOSCIENCES, INC. | View Filing | |
| edgar index | 8-K — ASSEMBLY BIOSCIENCES, INC. | View Filing | |
| eight k text | 8-K — 8-K | View Filing | |
| form 4 | Form 4 — GILEAD SCIENCES, INC. | View Filing | |
| edgar index | 8-K — ASSEMBLY BIOSCIENCES, INC. | View Filing | |
| edgar index | 424B5 — ASSEMBLY BIOSCIENCES, INC. | View Filing | |
| eight k text | 8-K — 8-K | View Filing | |
| edgar index | SCHEDULE 13G — ASSEMBLY BIOSCIENCES, INC. | View Filing | |
| edgar index | 8-K — ASSEMBLY BIOSCIENCES, INC. | View Filing | |
| edgar index | 10-Q — ASSEMBLY BIOSCIENCES, INC. | View Filing | |
| eight k text | 8-K — 8-K | View Filing | |
| edgar index | ARS — ASSEMBLY BIOSCIENCES, INC. | View Filing | |
| edgar index | DEF 14A — ASSEMBLY BIOSCIENCES, INC. | View Filing | |
| edgar index | DEFA14A — ASSEMBLY BIOSCIENCES, INC. | View Filing | |
| edgar index | 4 — ASSEMBLY BIOSCIENCES, INC. | View Filing | |
| edgar index | 4 — ASSEMBLY BIOSCIENCES, INC. | View Filing | |
| edgar index | 4 — ASSEMBLY BIOSCIENCES, INC. | View Filing | |
| edgar index | 4 — ASSEMBLY BIOSCIENCES, INC. | View Filing | |
| edgar index | 4 — ASSEMBLY BIOSCIENCES, INC. | View Filing | |
| edgar index | 8-K — ASSEMBLY BIOSCIENCES, INC. | View Filing | |
| eight k text | 8-K — 8-K | View Filing | |
| form 4 | Form 4 — White Nicole S | View Filing | |
| form 4 | Form 4 — White Nicole S | View Filing | |
| form 4 | Form 4 — Bjorkquist Jeanette M | View Filing | |
| form 4 | Form 4 — Bjorkquist Jeanette M | View Filing | |
| form 4 | Form 4 — Okazaki Jason A | View Filing | |
| form 4 | Form 4 — Delaney William E IV | View Filing | |
| form 4 | Form 4 — Gaggar Anuj | View Filing | |
| form 4 | Form 4 — White Nicole S | View Filing | |
| form 4 | Form 4 — Bjorkquist Jeanette M | View Filing | |
| form 4 | Form 4 — Okazaki Jason A | View Filing | |
| form 4 | Form 4 — Delaney William E IV | View Filing | |
| form 4 | Form 4 — Bjorkquist Jeanette M | View Filing | |
| form 4 | Form 4 — White Nicole S | View Filing | |
| form 4 | Form 4 — Gaggar Anuj | View Filing | |
| edgar index | EFFECT — ASSEMBLY BIOSCIENCES, INC. | View Filing | |
| edgar index | CORRESP — ASSEMBLY BIOSCIENCES, INC. | View Filing | |
| edgar index | UPLOAD — ASSEMBLY BIOSCIENCES, INC. | View Filing | |
| edgar index | 8-K — ASSEMBLY BIOSCIENCES, INC. | View Filing | |
| edgar index | 10-K — ASSEMBLY BIOSCIENCES, INC. | View Filing | |
| edgar index | S-8 — ASSEMBLY BIOSCIENCES, INC. | View Filing | |
| edgar index | S-3 — ASSEMBLY BIOSCIENCES, INC. | View Filing | |
| eight k text | 8-K — 8-K | View Filing | |
| ten k section | 10-K — business | View Filing | |
| ten k section | 10-K — mda | View Filing |