CUE SCHEDULE 13D: Activist campaign

A Schedule 13D was

Filed with the SEC on · accession 0001725092-26-000015

CUE filed a SCHEDULE 13D (schedule 13d) with the SEC on Aug 21, 2026. A Schedule 13D was filed on 2026-08-21 regarding Cue Biopharma, Inc. (CUE), indicating a holder has acquired a greater than 5% beneficial ownership stake with potential activist intent. The stock moved -2.6% by the first close after the filing.

Summary of the filing

A Schedule 13D was filed on 2026-08-21 regarding Cue Biopharma, Inc. (CUE), indicating a holder has acquired a greater than 5% beneficial ownership stake with potential activist intent. The filing text available does not disclose the holder's identity, ownership percentage, or specific plans.

Key details

Subject companyCue Biopharma, Inc.

How CUE stock reacted

Close before

$24.61

Aug 20, 2026

First close after

-2.56%

$23.98

5 trading days

+14.43%

$28.16

Since filing

-23.89%

$18.73

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Frequently asked questions

What did CUE file with the SEC on Aug 21, 2026?

CUE filed a SCHEDULE 13D (Activist campaign). A Schedule 13D was filed on 2026-08-21 regarding Cue Biopharma, Inc. (CUE), indicating a holder has acquired a greater than 5% beneficial ownership stake with potential activist intent. The filing text available does not disclose the holder's identity, ownership percentage, or specific plans.

What does a activist campaign mean for CUE stock?

A settlement removes uncertainty; the stock often reacts to whether the amount is bigger or smaller than investors expected.

How do I read a SCHEDULE 13D?

A report the company filed with the SEC (the US market regulator). Start with the summary, then the key amounts and names. Compare it with the company’s earlier filings.

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 SCHEDULE 13D (schedule 13d): A report the company filed with the SEC (the US market regulator).

How did CUE stock react to this filing?

CUE closed at $24.61 before the filing and $23.98 on Aug 21, 2026 (-2.56%). Five trading days later: $28.16 (+14.43%).

Other CUE SEC filings

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