Assembly Biosciences

ASMBNASDAQUSD

THESIS ALERT

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$22.37
+$1.02 (+4.78%)Today 1M −9.26%
After hours$22.370.00%

Updated Nov 11, 4:00 PM ET · Regular session · May be delayed

Source valuation snapshot. Not a live recalculation.
Latest filed annual earnings; price snapshot date unavailable. Not forward P/E.
Diluted earnings per share from the latest filed annual.
$21.35
Prior regular-session close from the quote source.
$21.00–$22.69
Regular-session low and high so far today.
203.1K
Regular-session shares traded · Nov 11, 4:00 PM ET.
Not yet confirmed
The company has not confirmed its next report date. Reported quarters are available in the chart’s Earnings view.
$19.20–$39.71
52-week trading low and high returned by the quote source.

Understand the Business

Why the Stock Moved

Period-matched expectations history is not yet available. Current metrics are not a substitute for a historical explanation.

The core investment thesis

Own ASMB if its serious-viral-disease programs produce differentiated clinical and partnering milestones before cash burn forces dilution, per-share upside can be meaningful, but the case breaks on clinical failure or loss of external support.

ASMB price history

Latest price$22.37Today+$1.02 (+4.78%)
ASMB -3.78%S&P 500 -2.42%Since first plotted close
4 hours

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Investment thesis

What must happen next

5 MATERIAL PROPOSITIONS
  • Differentiated antiviral science must keep attracting collaboration or milestone funding, because ASMB does not yet appear to have a self-sustaining commercial product base.StrengtheningMateriality: High

    GAAP annual revenue was $72.303 million in FY2025, up from $28.520 million in FY2024, showing that contract-based economics were material in the latest year. If external funding follows the pipeline, shareholders get more shots on goal with less dilution; if partners lose confidence, the pipeline becomes much harder to finance.

    Watch: A lead viral-disease program produces safety, tolerability, or antiviral-activity data that is not clearly differentiated from existing standards of care or competing development programs.

    Supporting sources

    Source notes are factual paraphrases; read the original disclosures below.

    GAAP annual revenue was $72.303 million in FY2025, up from $28.520 million in FY2024, showing that contract-based economics were material.

    Open source ↗
  • The balance sheet has to remain strong enough to fund clinical development from a position of choice rather than distress.HoldingMateriality: High

    Cash was $58.450 million at FY2025 versus $38.344 million at FY2024. A stronger cash position lets ASMB wait for value-creating data; weak liquidity would shift value from shareholders to new financing providers.

    Watch: Clinical plans expand into larger or longer trials without additional partner cost-sharing.

    Supporting sources

    Source notes are factual paraphrases; read the original disclosures below.

    Cash was $58.450 million at FY2025 versus $38.344 million at FY2024.

    Open source ↗
  • Management must keep R&D and corporate spending paced to partner-funded milestones rather than letting the burn rate outrun clinical validation.HoldingMateriality: Medium

    GAAP annual operating cash flow was negative $41.093 million in FY2025, improved from negative $51.117 million in FY2024. Controlled burn preserves per-share optionality; spending ahead of proof can force dilution even if the science remains promising.

    Watch: Assembly initiates broader clinical programs without matching partner reimbursement or milestone inflows.

    Supporting sources

    Source notes are factual paraphrases; read the original disclosures below.

    GAAP annual operating cash flow was negative $41.093 million in FY2025, improved from negative $51.117 million in FY2024.

    Open source ↗
  • The sharp narrowing of losses must reflect durable collaboration economics and disciplined development choices, not merely one-time revenue recognition.HoldingMateriality: Medium

    GAAP annual operating loss narrowed to $12.118 million in FY2025 from $45.420 million in FY2024 and $64.646 million in FY2023. If loss improvement is repeatable, ASMB can compound pipeline value with less financing risk; if it is one-time, the apparent operating progress may reverse.

    Watch: Recognized collaboration revenue falls away before new milestones are earned.

    Supporting sources

    Source notes are factual paraphrases; read the original disclosures below.

    GAAP annual operating loss narrowed to $12.118 million in FY2025 from $45.420 million in FY2024 and $64.646 million in FY2023.

    Open source ↗
  • A cleaner balance sheet should give ASMB more negotiating leverage with partners and investors, but only if liabilities stay contained while pipeline value advances.StrengtheningMateriality: Medium

    Stockholders’ equity was $206.751 million at FY2025, up from $33.359 million at FY2024. Balance-sheet strength can improve deal terms and reduce dilution; a deteriorating balance sheet would transfer more economics away from common shareholders.

    Watch: ASMB accepts restrictive financing terms, senior claims, or royalty obligations because clinical data are delayed.

    Supporting sources

    Source notes are factual paraphrases; read the original disclosures below.

    Stockholders’ equity was $206.751 million at FY2025, up from $33.359 million at FY2024.

    Open source ↗
Full investment case & evidence

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Original research

Differentiated antiviral science must keep attracting collaboration or milestone funding, because ASMB does not yet appear to have a self-sustaining commercial product base. If external funding follows the pipeline, shareholders get more shots on goal with less dilution; if partners lose confidence, the pipeline becomes much harder to finance.

The balance sheet has to remain strong enough to fund clinical development from a position of choice rather than distress. A stronger cash position lets ASMB wait for value-creating data; weak liquidity would shift value from shareholders to new financing providers.

Management must keep R&D and corporate spending paced to partner-funded milestones rather than letting the burn rate outrun clinical validation. Controlled burn preserves per-share optionality; spending ahead of proof can force dilution even if the science remains promising.

The sharp narrowing of losses must reflect durable collaboration economics and disciplined development choices, not merely one-time revenue recognition. If loss improvement is repeatable, ASMB can compound pipeline value with less financing risk; if it is one-time, the apparent operating progress may reverse.

A cleaner balance sheet should give ASMB more negotiating leverage with partners and investors, but only if liabilities stay contained while pipeline value advances. Balance-sheet strength can improve deal terms and reduce dilution; a deteriorating balance sheet would transfer more economics away from common shareholders.

All standing thesis claims
Original report summary

its serious-viral-disease programs produce differentiated clinical and partnering milestones before cash burn forces dilution, per-share upside can be meaningful, but the case breaks on clinical failure or loss of external support.

Evidence assessed Oct 16, 2026. Expand each conclusion for its evidence and what would change it. Thesis evidence—not a buy or sell recommendation.

Bull case and bear case

Bull case and bear case for Assembly Biosciences

Where the evidence on Assembly Biosciences stands: Holding on the latest evidence (Oct 16, 2026). Of its 5 thesis points, 2 strengthening and 3 holding.

Bull case: what the evidence supports

  • Differentiated antiviral science must keep attracting collaboration or milestone funding, because ASMB does not yet appear to have a self-sustaining commercial product base.

    sec.gov ↗

  • The balance sheet has to remain strong enough to fund clinical development from a position of choice rather than distress.

    sec.gov ↗

  • Management must keep R&D and corporate spending paced to partner-funded milestones rather than letting the burn rate outrun clinical validation.

    sec.gov ↗

  • The sharp narrowing of losses must reflect durable collaboration economics and disciplined development choices, not merely one-time revenue recognition.

    sec.gov ↗

  • A cleaner balance sheet should give ASMB more negotiating leverage with partners and investors, but only if liabilities stay contained while pipeline value advances.

    sec.gov ↗

Bear case: what would count against it

  • A lead viral-disease program produces safety, tolerability, or antiviral-activity data that is not clearly differentiated from existing standards of care or competing development programs.

    sec.gov ↗

  • Clinical plans expand into larger or longer trials without additional partner cost-sharing.

    sec.gov ↗

  • Assembly initiates broader clinical programs without matching partner reimbursement or milestone inflows.

    sec.gov ↗

Thesis-Break Engine

Thesis-break watch · Assembly Biosciences

Loading the break-condition record for Assembly Biosciences.

How the Thesis-Break Engine works →Historical outcomes are measured against the market after past breaks of the same kind, across all companies. Not a prediction.

MARKET + FINANCIAL SNAPSHOT

The numbers behind the thesis

Sourced from filings and market data

What Changed

  1. Mixed
    Completed an acquisition or disposition of assets.

    Assembly Biosciences filed an SEC 8-K on 2026-08-13: Completed an acquisition or disposition of assets. It is a dated development that tests the current thesis.

  2. Mixed
    Director or principal officer change.

    Assembly Biosciences filed an SEC 8-K on 2026-06-05: Director or principal officer change. It is a dated development that tests the current thesis.

  3. Mixed
    Entered a material definitive agreement.

    Assembly Biosciences filed an SEC 8-K on 2026-05-26: Entered a material definitive agreement. It is a dated development that tests the current thesis.

Risks / falsifiers

What could break the thesis

  • A lead viral-disease program produces safety, tolerability, or antiviral-activity data that is not clearly differentiated from existing standards of care or competing development programs.
  • Clinical plans expand into larger or longer trials without additional partner cost-sharing.
  • Assembly initiates broader clinical programs without matching partner reimbursement or milestone inflows.
  • Recognized collaboration revenue falls away before new milestones are earned.
  • ASMB accepts restrictive financing terms, senior claims, or royalty obligations because clinical data are delayed.

ASMB news

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Financial statements

ASMB income statement

Annual filed results · USD · Oldest to newest. Margins are calculated from the reported figures.

ASMB: quick answers

Have members of Congress traded ASMB?
2 trades in ASMB have been disclosed under the STOCK Act by members of Congress, the President or senior officials, none in reports made public in the last 90 days. Every disclosed ASMB trade
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