Insider Cluster (2 insiders) ·Filed Mar 4, 2026

GPK

GRAPHIC PACKAGING HOLDING CO
BULLISH
Impact 6/10
Horizonweeks Processed7mo ago
Insider cluster: 2 insiders, $625K total
Actionable Insight ▲ Bullish

CEO-led insider buying of this magnitude is relatively rare and may signal undervaluation or confidence in near-term performance. Traders should watch for upcoming earnings or operational updates that could catalyze a re-rating.

DirectionBullish
Confidencehigh
Horizonweeks
Final — all horizons settled through T+60d
GPK ▲ +4.11% at T+60d
LONG call ✓ call won +4.11% · α vs SPY -5.97% · entry $11.06 → $11.52
Entry anchored
Mar 3, 03:59 PM ET
via exchange tick
T+1d
-0.63%
call -0.63% · α -0.05%
$11.00
settled 7mo ago
T+5d
-8.31%
call -8.31% · α -6.98%
$10.15
settled 7mo ago
T+20d
-13.33%
call -13.33% · α -8.91%
$9.59
settled 6mo ago
T+60d
+4.11%
call +4.11% · α -5.97%
$11.52
settled 4mo ago

Price Chart

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Executive Summary

Graphic Packaging Holding Co (GPK) saw two open-market share purchases by insiders within the past week, including CEO Robbert Rietbroek buying over $500K in stock. This insider buying signals confidence in the company's prospects at current levels.

Key Financial Metrics

Direction
buying
Total Value
$625.4K
Insiders
2

Key Facts

  • CEO Robbert Rietbroek purchased 44,278 shares for $501,098 in an open-market transaction.
  • Larry M. Venturelli purchased 10,935 shares for $124,276 in an open-market transaction.
  • Total insider buying in the past 7 days: $625,374.
  • All transactions were open-market purchases (no grants, awards, or tax-related dispositions).
  • Combined purchases represent approximately 0.019% of GPK's $3.3B market cap.

Financial Impact

$625,374 in insider buying over 7 days

insider sentimentmarket confidence

Risk Factors

  • The total dollar amount, while meaningful, is still small relative to market cap (<0.1%) and may not reflect broad-based executive team conviction.
  • No additional financial disclosures or forward-looking commentary from the company accompanies these trades.

Market Snapshot

Exchange
NYSE

Investment Themes

Materials & Mining

Documents Analyzed

This report is based on 1 SEC document filed with EDGAR.

DocumentAccession Number
CONTEXT: Insider Cluster Data (2 trades, 7d window)cluster-GPK-1772744777045
8 reports for GPK
Performance horizon

Track record builds as more directional reports settle.

Filters
Rows
Reports for GPK — sortable, filterable
TypeNow
Aug 17, 2026
6w ago
8-K
NEUTRAL ★ 3/10
$10.97 $9.87▼ −10.07%▼ −9.08%$8.97 (−18.23%)
Aug 6, 2026
8w ago
144
NEUTRAL ★ 2/10
$11.87 $10.70▼ −9.86%▼ −10.46%$8.97 (−24.43%)
Jul 29, 2026
9w ago
Press Release
NEUTRAL ★ 2/10
$10.96 $11.33▲ +3.38%▼ −0.59%$8.97 (−18.16%)
May 26, 2026
18w ago
8-K
NEUTRAL ★ 3/10
$10.29 $10.65▲ +3.45%▲ +5.40%$8.97 (−12.83%)
May 5, 2026
21w ago
8-K
BEARISH ★ 7/10
$10.73 $10.76▼ −0.28%▲ +4.67%$8.97 (+16.40%)
Mar 11, 2026
29w ago
8-K
NEUTRAL ★ 3/10
$9.71 $9.67▼ −0.41%▼ −2.39%$8.97 (−7.62%)
Mar 4, 2026
30w ago
Insider Cluster
BULLISH ★ 6/10
$11.06 $9.59▼ −13.33%▼ −8.91%$8.97 (−18.93%)
Feb 27, 2026
31w ago
8-K
NEUTRAL ★ 4/10
$12.09 $9.23▼ −23.67%▼ −16.12%$8.97 (−25.82%)
Showing 8 of 8

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Report published Mar 5, 2026