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GPI SCHEDULE 13D/A: Activist campaign

Acacia entities, a 13D reporting person

Filed with the SEC on · accession 0000905148-26-004113

GPI filed a SCHEDULE 13D/A (schedule 13d/a) with the SEC on Sep 8, 2026. A report the company filed with the SEC (the US market regulator). The stock moved -6.4% by the first close after the filing.

Summary of the filing

Acacia entities, a 13D reporting person, disclosed open-market purchases of Group 1 Automotive common stock across multiple accounts from August 31 to September 4, 2026, at prices ranging from roughly $263 to $306 per share.

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Key details

Acacia II Partners LP purchases 8/31-9/4$33K
Acacia Institutional Partners LP purchases 9/3-9/4$61K
Acacia Conservation Master Fund purchases 8/31-9/4$112K
Total shares purchased across accounts$206K
Reporting person accountAcacia II Partners, LP
Reporting person accountAcacia Institutional Partners, L.P.
Reporting person accountAcacia Conservation Master Fund (Offshore), LP
IssuerGroup 1 Automotive Inc

How GPI stock reacted

Close before

$300.76

Sep 4, 2026

First close after

-6.37%

$281.60

5 trading days

-5.57%

$284.01

Since filing

-13.10%

$261.35

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Frequently asked questions

What did GPI file with the SEC on Sep 8, 2026?

GPI filed a SCHEDULE 13D/A (Activist campaign). Acacia entities, a 13D reporting person, disclosed open-market purchases of Group 1 Automotive common stock across multiple accounts from August 31 to September 4, 2026, at prices ranging from roughly $263 to $306 per share.

What does a activist campaign mean for GPI 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 GPI stock react to this filing?

GPI closed at $300.76 before the filing and $281.60 on Sep 8, 2026 (-6.37%). Five trading days later: $284.01 (-5.57%).

Other GPI SEC filings

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