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GPI SCHEDULE 13D/A: Activist campaign

Filed with the SEC on · accession 0000905148-26-004578

GPI filed a SCHEDULE 13D/A (schedule 13d/a) with the SEC on Oct 27, 2026. Acacia Partners, L.P. and Acacia Conservation Fund, LP (managed by the Reporting Person) purchased additional shares of Group 1 Automotive Inc. common stock in open market transactions between September 30, 2026 and October 26, 2026, totaling approximately 171,592 shares at prices ranging from… The stock moved +4.2% by the first close after the filing.

Summary of the filing

Acacia Partners, L.P. and Acacia Conservation Fund, LP (managed by the Reporting Person) purchased additional shares of Group 1 Automotive Inc. common stock in open market transactions between September 30, 2026 and October 26, 2026, totaling approximately 171,592 shares at prices ranging from $226.00 to $249.84 per share.

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Key details

Total shares purchased by Acacia Partners, L.P. on 9/30/2026shares 42K
Total shares purchased by Acacia Conservation Fund, LP on 9/30/2026shares 29K
Total shares purchased by Acacia Conservation Fund, LP on 10/22/2026shares 45K
Total shares purchased by Acacia Conservation Fund, LP on 10/23/2026shares 35K
Total shares purchased by Acacia Conservation Fund, LP on 10/26/2026shares 20K
Aggregate shares purchased across all transactionsshares 172K
Reporting person / shareholderAcacia Partners, L.P.
Reporting person / shareholderAcacia Conservation Fund, LP
IssuerGroup 1 Automotive Inc.

How GPI stock reacted

Close before

$243.88

Oct 26, 2026

First close after

+4.23%

$254.20

5 trading days

+10.62%

$269.79

Since filing

+7.16%

$261.35

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Frequently asked questions

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

GPI filed a SCHEDULE 13D/A (Activist campaign). Acacia Partners, L.P. and Acacia Conservation Fund, LP (managed by the Reporting Person) purchased additional shares of Group 1 Automotive Inc. common stock in open market transactions between September 30, 2026 and October 26, 2026, totaling approximately 171,592 shares at prices ranging from $226.00 to $249.84 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 $243.88 before the filing and $254.20 on Oct 27, 2026 (+4.23%). Five trading days later: $269.79 (+10.62%).

Other GPI SEC filings

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