ACRS 424B5: Secondary offering

Aclaris Therapeutics

Filed with the SEC on · accession 0001104659-26-119223

ACRS filed a 424B5 (prospectus (offering)) with the SEC on Oct 27, 2026. Aclaris Therapeutics filed a 424B5 prospectus supplement under an existing S-3 shelf registration, indicating a proposed public offering of securities. The stock moved +0.0% by the first close after the filing.

Summary of the filing

Aclaris Therapeutics filed a 424B5 prospectus supplement under an existing S-3 shelf registration, indicating a proposed public offering of securities. The filing is a fee exhibit and does not disclose specific offering terms.

Key details

IssuerAclaris Therapeutics, Inc.

How ACRS stock reacted

Close before

$3.79

Oct 26, 2026

First close after

+0.00%

$3.79

5 trading days

+0.26%

$3.80

Since filing

-4.75%

$3.61

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Frequently asked questions

What did ACRS file with the SEC on Oct 27, 2026?

ACRS filed a 424B5 (Secondary offering). Aclaris Therapeutics filed a 424B5 prospectus supplement under an existing S-3 shelf registration, indicating a proposed public offering of securities. The filing is a fee exhibit and does not disclose specific offering terms.

What does a secondary offering mean for ACRS stock?

New shares dilute existing holders and are often sold at a discount to the market price.

How do I read a 424B5?

The final terms of an offering of shares or bonds. Look at price, number of shares and the discount to the market price. Large offerings dilute existing shareholders.

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 424B5 (prospectus (offering)): The final terms of an offering of shares or bonds.

How did ACRS stock react to this filing?

ACRS closed at $3.79 before the filing and $3.79 on Oct 27, 2026 (+0.00%). Five trading days later: $3.80 (+0.26%).

Other ACRS SEC filings

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