ENSC SCHEDULE 13D/A: Acquisition

Ensysce Biosciences

Filed with the SEC on · accession 0001493152-26-038943

ENSC filed a SCHEDULE 13D/A (schedule 13d/a) with the SEC on Aug 18, 2026. Ensysce Biosciences entered into a merger agreement with Cy Biopharma, Inc., with Ensysce as the parent entity and Cy Biopharma as the target, and a stockholder of Ensysce signed a support agreement to vote in favor of the transaction. The stock moved +2.2% by the first close after the filing.

Summary of the filing

Ensysce Biosciences entered into a merger agreement with Cy Biopharma, Inc., with Ensysce as the parent entity and Cy Biopharma as the target, and a stockholder of Ensysce signed a support agreement to vote in favor of the transaction. The deal may also involve a Nasdaq reverse stock split to maintain listing compliance.

Key details

Parent/acquirerEnsysce Biosciences, Inc.
Target companyCy Biopharma, Inc.
Wholly owned merger subsidiary of parentPHRMA Merger Sub I, Inc.
Wholly owned merger subsidiary of parentPHRMA Merger Sub II, LLC

How ENSC stock reacted

Close before

$0.38

Aug 17, 2026

First close after

+2.23%

$0.39

5 trading days

-4.14%

$0.36

Since filing

-12.72%

$0.33

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Frequently asked questions

What did ENSC file with the SEC on Aug 18, 2026?

ENSC filed a SCHEDULE 13D/A (Acquisition). Ensysce Biosciences entered into a merger agreement with Cy Biopharma, Inc., with Ensysce as the parent entity and Cy Biopharma as the target, and a stockholder of Ensysce signed a support agreement to vote in favor of the transaction. The deal may also involve a Nasdaq reverse stock split to maintain listing compliance.

What does a acquisition mean for ENSC stock?

A contract important enough that investors need to know about it — a big customer contract, a loan, a merger agreement or a partnership.

How do I read a SCHEDULE 13D/A?

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

How did ENSC stock react to this filing?

ENSC closed at $0.38 before the filing and $0.39 on Aug 18, 2026 (+2.23%). Five trading days later: $0.36 (-4.14%).

Other ENSC SEC filings

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