GPK insider buying and SEC filings, explained
Graphic Packaging Holding Co. · CIK 1408075
Tracked: Forms 3/4/5, 8-K, NT · All filings on sec.gov
Company profile
- Exchanges
- NYSE
- Industry (SIC)
- Paperboard Containers & Boxes
- State of incorporation
- DE
- Fiscal year end
- Dec 31
- Former names
- New Giant CORP
Insider activity in the last 12 months
Bought
$1.1M
Insiders who bought
4
Sold (not marked 10b5-1)
$0
Planned sales (10b5-1)
$0
Insider purchases and sales, last 12 months
| Traded | Type | What was filed | Source |
|---|---|---|---|
| May 20, 2026 | Other purchase | Jeffrey Stafeil (Director) bought 16,261 Common Stock at $0.0000 ($0), reported as a purchase (code P). Holdings up 91% to 34,139 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed May 21, 2026 |
| May 8, 2026 | Purchase (code P) | Robert Hagemann (Director) bought 14,000 shares at about $11.00 ($154K), reported as a purchase (code P). Holdings up 17% to 97,569 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed May 11, 2026 |
| May 7, 2026 | Purchase (code P) | Jeffrey Stafeil (Director) bought 17,878 shares at about $11.19 ($200K), reported as a purchase (code P). New position of 17,878 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed May 11, 2026 |
| Mar 4, 2026 | Purchase (code P) | Larry M Venturelli (Director) bought 17,531 shares directly and indirectly (by trust) at about $11.37 ($199K), reported as a purchase (code P). Direct holdings up 11% to 114,246 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Mar 5, 2026 |
| Mar 4, 2026 | Purchase (code P) | Robbert Rietbroek (CEO and Director) bought 44,278 shares at $11.32 ($501K), reported as a purchase (code P). New position of 44,278 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Mar 4, 2026 |
41 routine transactions (such as grants, option exercises or tax withholding) are not listed.
Cluster buys
2 insiders bought in 30 days
$354K in purchases since May 7, 2026 · Purchases traded May 7, 2026 to May 8, 2026 · Closed
| Insider | Value | Traded | Source |
|---|---|---|---|
| Jeffrey Stafeil (Director) | $200K | May 7, 2026 | SEC filing |
| Robert Hagemann (Director) | $154K | May 8, 2026 | SEC filing |
2 insiders bought in 30 days
$700K in purchases since Mar 4, 2026 · Purchases traded Mar 4, 2026 to Mar 4, 2026 · Closed
| Insider | Value | Traded | Source |
|---|---|---|---|
| Robbert Rietbroek (CEO) | $501K | Mar 4, 2026 | SEC filing |
| Larry M Venturelli (Director) | $199K | Mar 4, 2026 | SEC filing |
Red flags
No red flags in the last 12 months.
Key events
No key events in the last 12 months.
8-K filings, last 12 months
| Filed | Items | Tag | Source |
|---|---|---|---|
| Nov 3, 2026, 8:10 AM ET 8-K | Earnings released (Item 2.02) | SEC filing |
Red flags are objective triggers only: the item or form filed, never an opinion.
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