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RGR SCHEDULE 13D/A: Activist campaign

An amendment to a Schedule 13D was

Filed with the SEC on · accession 0000921895-26-002570

RGR filed a SCHEDULE 13D/A (schedule 13d/a) with the SEC on Sep 17, 2026. An amendment to a Schedule 13D was filed for Sturm Ruger & Co Inc, indicating a change in a previously reported activist or large shareholder position. The stock moved +8.3% by the first close after the filing.

Summary of the filing

An amendment to a Schedule 13D was filed for Sturm Ruger & Co Inc, indicating a change in a previously reported activist or large shareholder position. The filing text provided does not disclose specific ownership percentages or stated intentions.

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Key details

Subject companySturm Ruger & Co Inc

How RGR stock reacted

Close before

$37.08

Sep 16, 2026

First close after

+8.25%

$40.14

5 trading days

+13.00%

$41.90

Since filing

+34.65%

$49.93

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Frequently asked questions

What did RGR file with the SEC on Sep 17, 2026?

RGR filed a SCHEDULE 13D/A (Activist campaign). An amendment to a Schedule 13D was filed for Sturm Ruger & Co Inc, indicating a change in a previously reported activist or large shareholder position. The filing text provided does not disclose specific ownership percentages or stated intentions.

What does a activist campaign mean for RGR 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?

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 RGR stock react to this filing?

RGR closed at $37.08 before the filing and $40.14 on Sep 17, 2026 (+8.25%). Five trading days later: $41.90 (+13.00%).

Other RGR SEC filings

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