SEC Form 4
Graphic Packaging Holding Company (GPK) insider trading
In the 12 months to Oct 26, 2026, 4 GPK insiders reported open-market purchases of $1.1M across 5 filings; no open-market sales were filed.
Latest filing · Last 12 months · Source: SEC EDGAR · How we count
- Open-market sales
- $0
- 0 filings · 0 insiders
- Open-market purchases
- $1.1M
- 5 filings
$ excludes 1 trade without a price.
Who traded GPK, and when
- Purchase
GPK daily close from Oct 27, 2025 to Oct 26, 2026, between $8.24 and $17.37, last $8.70. 0 sale and 5 purchase filings by 4 insiders, marked at their filing dates. Robbert Rietbroek, President and CEO: bought $501.1K across 1 filing, first filed Mar 4, 2026, last Mar 4, 2026. Jeffrey Stafeil, Director: bought $200.0K across 2 filings, first filed May 11, 2026, last May 21, 2026. Larry M. Venturelli, Director: bought $199.2K across 1 filing, first filed Mar 5, 2026, last Mar 5, 2026. Robert Hagemann, Director: bought $154.0K across 1 filing, first filed May 11, 2026, last May 11, 2026.
Largest mark · tap a row for others
Robbert Rietbroek · President and CEO
Purchase $501,099
44,278 shares at $11.32 avg
Filed Mar 4, 2026
Close on filing date $11.19
Robbert Rietbroek · President and CEO
President and CEO
$501.1K boughtJeffrey Stafeil · Director
Director
$200.0K boughtLarry M. Venturelli · Director
Director
$199.2K boughtRobert Hagemann · Director
Director
$154.0K boughtOpen-market trades
5 filings in the last 12 months| Insider | Role | Sold | Bought | Filings | Pre-arranged (10b5-1) | Last filed |
|---|---|---|---|---|---|---|
| Robbert Rietbroek | President and CEO | — | $501.1K | 1 | — | |
| Jeffrey Stafeil | Director | — | $200.0K | 2 | — | |
| Larry M. Venturelli | Director | — | $199.2K | 1 | — | |
| Robert Hagemann | Director | — | $154.0K | 1 | — |
| Filed | Insider | Type | Shares | Avg price | Value | Held after | Source |
|---|---|---|---|---|---|---|---|
traded | Jeffrey Stafeil Director | Purchase | 16,261 | — | — | 34,139 | |
traded | Robert Hagemann Director | Purchase | 14,000 | $11.00 | $154.0K | 97,569 | |
traded | Jeffrey Stafeil Director | Purchase | 17,878 | $11.19 | $200.0K | 17,878 | |
traded | Larry M. Venturelli Director | Purchase | 17,531 | $11.36 | $199.2K | Multiple accounts | |
traded | Robbert Rietbroek President and CEO | Purchase | 44,278 | $11.32 | $501.1K | 44,278 |
GET /stocks/filings/vX/form-4?tickers=GPK&filing_date.gte=2025-10-26&sort=filing_date.desc&limit=500{
"status": "OK",
"results": [
{
"tickers": [
"GPK"
],
"issuer_cik": "0001408075",
"owner_cik": "0001439140",
"accession_number": "0001193125-26-234664",
"form_type": "4",
"filing_date": "2026-05-21",
"period_of_report": "2026-05-20",
"issuer_name": "GRAPHIC PACKAGING HOLDING CO",
"issuer_trading_symbol": "GPK",
"owner_name": "Stafeil Jeffrey",
"is_director": true,
"is_officer": false,
"is_ten_percent_owner": false,
"is_other": false,
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Common Stock",
"transaction_timeliness": "O",
"aff_10b5_one": false,
"transaction_date": "2026-05-20",
"transaction_code": "P",
"equity_swap_involved": false,
"transaction_shares": 16261,
"transaction_price_per_share": 0,
"transaction_acquired_disposed": "A",
"shares_owned_following_transaction": 34139.282,
"transaction_value": 0,
"direct_or_indirect": "D"
},
{
"tickers": [
"GPK"
],
"issuer_cik": "0001408075",
"owner_cik": "0001439140",
"accession_number": "0001193125-26-216815",
"form_type": "4",
"filing_date": "2026-05-11",
"period_of_report": "2026-05-07",
"issuer_name": "GRAPHIC PACKAGING HOLDING CO",
"issuer_trading_symbol": "GPK",
"owner_name": "Stafeil Jeffrey",
"is_director": true,
"is_officer": false,
"is_ten_percent_owner": false,
"is_other": false,
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Common Stock",
"transaction_timeliness": "O",
"aff_10b5_one": false,
"transaction_date": "2026-05-07",
"transaction_code": "P",
"equity_swap_involved": false,
"transaction_shares": 17878.282,
"transaction_price_per_share": 11.1868,
"transaction_acquired_disposed": "A",
"shares_owned_following_transaction": 17878.282,
"transaction_value": 200000.7650776,
"direct_or_indirect": "D",
"footnotes": [
{
"id": "F1",
"description": "The 17,878.282 shares were purchased through a number of separate trades, with purchase prices ranging from $11.17 to $11.19, and a weighted average purchase price of $11.1868. The Reporting Person undertakes to provide, upon request by the Staff of the Securities and Exchange Commission, the Issuer or a security holder of the Issuer, full information regarding the number of shares purchased at each separate purchase price."
}
]
}
]
}
// trimmed to 2 resultsThe response includes every Form 4 record; this page keeps open-market purchases and sales on common stock and removes duplicate joint-filer rows.
Other insider activity (not market trades) · 63 records
- Option exercises22 records
- Tax withholding29 records
- Grants and awards12 records
Reported on Form 4 but not purchases or sales in the market, so not counted in the totals above.
How to read this page
- Open-market purchase or sale
- A buy or sell of the company's stock at market price. Grants, option exercises, shares withheld for tax, gifts and employee stock plan purchases are listed separately and not counted.
- Filing date
- Insiders have two business days to report a trade. Totals and the chart use the filing date, when the trade became public.
Frequently asked questions
Has the Graphic Packaging Holding Company's CEO sold stock?
No. Robbert Rietbroek (CEO) made no open-market sales filed as CEO in the last 12 months.
How current is GPK’s insider data?
These are GPK Form 4 filings from the last year, refreshed daily. The Massive Form 4 API has the full, continuously updated record.
What counts as an open-market buy or sell?
Only purchases and sales at the market price. Option exercises, grants, gifts, and shares withheld for taxes are reported on Form 4 but are left out of the buy and sell totals.
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Track GPK insider trades with your agent
This page joins two Massive endpoints: Form 4 filings and daily prices. Ask an agent to watch for new filings:
Using the Massive API (massive.com/docs/llms.txt), check Form 4 filings for GPK every day with transaction_code=P and tell me when an insider files an open-market purchase, with their role, shares, price and the filing link.
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