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Stocks/VSTM/SEC Filings/8-K Nov 5, 2026

VSTM 8-K: SEC filing

Verastem, Inc.

Filed with the SEC on Nov 5, 2026 · accession 0001104659-26-123386

VSTM filed a 8-K (current report) with the SEC on Nov 5, 2026. A report of a major event, filed within four business days: results, deals, leadership changes, bankruptcy and more. The stock moved -4.8% by the first close after the filing.

Summary of the filing

Verastem, Inc. filed a Form 8-K cover page dated November 5, 2026, but the filing text contains only XBRL cover-page metadata and no substantive disclosure of a reportable event.

For details, click here →How to read a 8-K →

Key details

RegistrantVerastem, Inc.

How VSTM stock reacted

Close before

$9.85

Nov 4, 2026

First close after

-4.77%

$9.38

5 trading days

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Since filing

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Frequently asked questions

What did VSTM file with the SEC on Nov 5, 2026?

VSTM filed a 8-K (SEC filing). Verastem, Inc. filed a Form 8-K cover page dated November 5, 2026, but the filing text contains only XBRL cover-page metadata and no substantive disclosure of a reportable event.

How do I read a 8-K?

A report of a major event, filed within four business days: results, deals, leadership changes, bankruptcy and more. The "Item" number tells you the topic (e.g. 2.02 results, 5.02 executive change, 1.01 new agreement, 1.03 bankruptcy). Exhibits (99.1 press release) usually hold the details.

Why are SEC filings important?

Public companies must tell the SEC about anything that can change their value — results, leadership changes, big deals, new shares, bankruptcy. Filings are the official source, often before the news. A 8-K (current report): A report of a major event, filed within four business days: results, deals, leadership changes, bankruptcy and more.

How did VSTM stock react to this filing?

VSTM closed at $9.85 before the filing and $9.38 on Nov 5, 2026 (-4.77%).

Other VSTM SEC filings

  • 10-Q · SEC filingNov 5, 2026
  • 8-K · SEC filingOct 14, 2026
  • 424B5 · Secondary offeringOct 14, 2026
  • 8-K · SEC filingOct 14, 2026
  • 424B5 · Secondary offeringOct 14, 2026
  • 8-K · SEC filingAug 7, 2026
  • 10-Q · SEC filingAug 6, 2026
  • 8-K · SEC filingAug 6, 2026
  • 144 · Insider sale plannedJun 25, 2026
  • 8-K · SEC filingJun 23, 2026

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Source: SEC EDGAR filing 0001104659-26-123386. The summary and key details are extracted by SEPT from the filing and may contain errors. Price reaction uses daily closing prices. Not financial advice.