CCCC 8-K: SEC filing

Filed with the SEC on Nov 5, 2026 · accession 0001628280-26-070560

CCCC filed a 8-K (current report) with the SEC on Nov 5, 2026. C4 Therapeutics furnished a press release announcing its financial results and business highlights for the quarter ended September 30, 2026. The stock moved -5.4% by the first close after the filing.

Summary of the filing

C4 Therapeutics furnished a press release announcing its financial results and business highlights for the quarter ended September 30, 2026. The filing is an earnings release under Item 2.02 of Form 8-K.

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

Key details

RegistrantC4 Therapeutics, Inc.

Chief financial officer, head of corporate affairs, and treasurerKendra R. Adams

How CCCC stock reacted

Close before

$3.12

Nov 4, 2026

First close after

-5.45%

$2.95

5 trading days

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Since filing

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Frequently asked questions

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

CCCC filed a 8-K (SEC filing). C4 Therapeutics furnished a press release announcing its financial results and business highlights for the quarter ended September 30, 2026. The filing is an earnings release under Item 2.02 of Form 8-K.

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 CCCC stock react to this filing?

CCCC closed at $3.12 before the filing and $2.95 on Nov 5, 2026 (-5.45%).

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