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Stocks/GPK/SEC Filings/SCHEDULE 13G/A Aug 14, 2026

GPK SCHEDULE 13G/A: SEC filing

An institutional holder

Filed with the SEC on Aug 14, 2026 · accession 0001941040-26-000633

GPK filed a SCHEDULE 13G/A (schedule 13g/a) with the SEC on Aug 14, 2026. An institutional holder filed an amended Schedule 13G for Graphic Packaging Holding Co, indicating a change in its passive ownership position. The stock moved -3.7% by the first close after the filing.

Summary of the filing

An institutional holder filed an amended Schedule 13G for Graphic Packaging Holding Co, indicating a change in its passive ownership position. The filing text provided contains only the EDGAR directory listing, so specific ownership details are not available.

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Key details

IssuerGraphic Packaging Holding Co

How GPK stock reacted

Close before

$11.84

Aug 13, 2026

First close after

-3.72%

$11.40

5 trading days

-1.77%

$11.63

Since filing

-5.49%

$11.19

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Frequently asked questions

What did GPK file with the SEC on Aug 14, 2026?

GPK filed a SCHEDULE 13G/A (SEC filing). An institutional holder filed an amended Schedule 13G for Graphic Packaging Holding Co, indicating a change in its passive ownership position. The filing text provided contains only the EDGAR directory listing, so specific ownership details are not available.

How do I read a SCHEDULE 13G/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 13G/A (schedule 13g/a): A report the company filed with the SEC (the US market regulator).

How did GPK stock react to this filing?

GPK closed at $11.84 before the filing and $11.40 on Aug 14, 2026 (-3.72%). Five trading days later: $11.63 (-1.77%).

Other GPK SEC filings

  • 10-Q · Material agreementNov 3, 2026
  • 8-K · SEC filingNov 3, 2026
  • 8-K · Executive departureSep 28, 2026
  • 8-K · SEC filingSep 28, 2026
  • SCHEDULE 13G/A · SEC filingSep 8, 2026
  • 8-K · Material agreementSep 3, 2026
  • 8-K · Legal settlementAug 17, 2026
  • SCHEDULE 13G · SEC filingAug 13, 2026
  • 10-Q · SEC filingAug 4, 2026
  • 8-K · SEC filingAug 4, 2026

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Source: SEC EDGAR filing 0001941040-26-000633. The summary and key details are extracted by SEPT from the filing and may contain errors. Price reaction uses daily closing prices. Not financial advice.