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CATX SCHEDULE 13D/A: SEC filing

Perspective Therapeutics, Inc.

Filed with the SEC on · accession 0001193125-26-399446

CATX filed a SCHEDULE 13D/A (schedule 13d/a) with the SEC on Sep 23, 2026. Perspective Therapeutics, Inc. (CATX) filed an amended Schedule 13D, indicating a change in a previously reported beneficial ownership position by an activist or large shareholder. The stock moved -11.5% by the first close after the filing.

Summary of the filing

Perspective Therapeutics, Inc. (CATX) filed an amended Schedule 13D, indicating a change in a previously reported beneficial ownership position by an activist or large shareholder. The filing text provided contains only the EDGAR directory listing and no substantive details of the amendment.

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Key details

IssuerPerspective Therapeutics, Inc.

How CATX stock reacted

Close before

$2.96

Sep 22, 2026

First close after

-11.49%

$2.62

5 trading days

-11.49%

$2.62

Since filing

-71.62%

$0.84

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Frequently asked questions

What did CATX file with the SEC on Sep 23, 2026?

CATX filed a SCHEDULE 13D/A (SEC filing). Perspective Therapeutics, Inc. (CATX) filed an amended Schedule 13D, indicating a change in a previously reported beneficial ownership position by an activist or large shareholder. The filing text provided contains only the EDGAR directory listing and no substantive details of the amendment.

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 CATX stock react to this filing?

CATX closed at $2.96 before the filing and $2.62 on Sep 23, 2026 (-11.49%). Five trading days later: $2.62 (-11.49%).

Other CATX SEC filings

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