Stock Trading Canary

United States · SEC Form 4 · Snapshot date: 2026-10-18 · Built: 2026-10-18 · 中文

← United States · Coverage record

US · SEC FORM 4

GRAPHIC PACKAGING HOLDING CO

GPK · NYSE · CIK 0001408075 · Basic Materials · Packaging & Containers

INSIDER SIGNAL

57.9 / 100

2 buyers · 3 purchase transaction lines · $354.1K gross purchase

WHY THIS SIGNAL?

Buyer breadthLow
Purchase sizeModerate
RoleStrong
RecencyLow
ConvictionStrong
Score anatomy

Each bar shows the contribution to the current score; the weights and formula stay unchanged.

Cluster+14.0 / 35
Purchase size+13.1 / 25
Role+20.0 / 20
Recency+0.8 / 10
Conviction+10.0 / 10

What is holding the score back?

  • ⚠ Cluster breadth is moderate · 2 insider(s), not 4+
  • ⚠ Purchase activity is becoming less recent
  • ✓ Role scores high · most senior buyer: Director

Purchase-size comments are relative to the model scale. Average daily volume is a separate market-context diagnostic.

US-v1.2 ranks qualifying equity purchases under the current 180-day rules. The score is a research priority, not a return forecast or probability. Backtests have not shown that a higher US score is followed by better returns.

Insider activity timeline

Owner lanes show the latest 180 days. Symbol shape identifies the transaction type; sales remain context only.

AprMayJunJulAugSepOct
Stafeil JeffreyDirector
●●
Venturelli Larry MDirector
○
Maselli AlessandroDirector
○
MARTENS PHILIP RDirector
○
Callahan Andrew PDirector
○
BRLAS LAURIEDirector
○
● Purchase▼ Sale○ Other

Showing the six most active owners; 1 additional owner(s) remain in Form 4 evidence.

Purchase breadth & concentration

QUALIFYING BUYERS2
PURCHASE CONCENTRATION57%Largest buyer: Stafeil Jeffrey · $200.1K
CLUSTER BUYING · 15D2 insidersPeak activity: 2026-05-07–2026-05-20

Roles in the peak window: Director. Concentration uses priced qualifying P lines only and does not change the saved score.

SIGNAL HISTORY

57.9 / 100

Latest recorded score

↓ -0.1 ptsversus the previous recorded snapshot
  1. 58.1
  2. 58.1
  3. 58.1
  4. 58.0
  5. 57.9

Only scores saved when a full US scoring run completed are shown; gaps are not reconstructed.

Recent Form 4 activity

8Purchases
0Sales
63Other Form 4 lines
25SEC filings · 365 days
BUYING3 qualifying P line(s) · 180 days
SELLING0 sale line(s) · context only
OTHER5 exercise / withholding / award / gift / other lines
10b5-1 / PLANNEDNot assessed

P is an open-market or private purchase. S is a sale. M, F, A and G usually describe exercises, tax withholding, awards and gifts. These categories remain visually separate.

Market context

Market context provides additional background on recent price performance and risk. It does not affect the Insider Signal.

Price performance

1M
-11.1%
3M
-19.6%
6M
-13.7%
12M
-55.6%

Volatility & liquidity

Volatility
38.7%
Beta
—
Avg daily value
USD 48.0M

Valuation

Market cap
USD 2.5B
P/E
5.6×

Fundamentals

Profit margin
5.2%
ROE
13.3%
Industry
Packaging & Containers

Market data

Price data up to: 2026-10-11 · Price source: OpenBB/yfinance; volume from price cache (yfinance) · From SEC filings: Market cap, P/E, Profit margin, ROE · Fiscal year ended: 2025-12-31 · Market cap is the shares outstanding stated on the filing cover multiplied by the latest close. Share count date: 2026-08-03 · Status: PASS

Short interest

Short interest is external context reported to FINRA by broker-dealers. It does not affect the Insider Signal.

Shares short
22,169,008
Previous report
23,370,852
Avg daily volume
6,941,491
Days to cover
3.2

FINRA settlement date: 2026-09-30 · Captured 2026-10-12 · FINRA equity short interest ↗. A share count, published about a week after each of two settlement dates a month; not a percentage of shares outstanding.

Historical equity purchases

Qualifying code P transactions in the local Form 4 history, including purchases outside the current signal window.

Transaction dateReporting ownerTypeSecuritySharesAvg. priceApprox. valueSource
2026-05-20Stafeil JeffreyPurchase (P)Common Stock16,261USD 0.00USD 0SEC filing ↗
2026-05-08HAGEMANN ROBERTPurchase (P)Common Stock14,000USD 11.00USD 154,000SEC filing ↗
2026-05-07Stafeil JeffreyPurchase (P)Common Stock17,878USD 11.19USD 200,058SEC filing ↗
2026-03-04Venturelli Larry MPurchase (P)Common Stock17,531USD 11.37USD 199,262SEC filing ↗
2026-03-04Rietbroek RobbertPurchase (P)Common Stock44,278USD 11.32USD 501,227SEC filing ↗
2022-10-28Rhinehart Mary KPurchase (P)Common Stock16USD 23.03USD 368SEC filing ↗
2021-09-16Rhinehart Mary KPurchase (P)Common Stock255USD 19.46USD 4,962SEC filing ↗
2020-04-02Venturelli Larry MPurchase (P)Common Stock162USD 11.91USD 1,928SEC filing ↗
2020-03-17Venturelli Larry MPurchase (P)Common Stock8,100USD 12.10USD 98,010SEC filing ↗
2020-01-02Venturelli Larry MPurchase (P)Common Stock116USD 16.56USD 1,919SEC filing ↗

Form 4 evidence

71 transaction lines in the latest 365-day window; 300 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-05-20Venturelli Larry MAward / grant (A)Common Stock16,261USD 0.00USD 0SEC filing ↗
2026-05-20Stafeil JeffreyPurchase (P)Common Stock16,261USD 0.00USD 0SEC filing ↗
2026-05-20Maselli AlessandroAward / grant (A)Common Stock16,261USD 0.00USD 0SEC filing ↗
Show recent Form 4 evidence (30 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-05-20Venturelli Larry MAward / grant (A)Common Stock16,261USD 0.00USD 0SEC filing ↗
2026-05-20Stafeil JeffreyPurchase (P)Common Stock16,261USD 0.00USD 0SEC filing ↗
2026-05-20Maselli AlessandroAward / grant (A)Common Stock16,261USD 0.00USD 0SEC filing ↗
2026-05-20MARTENS PHILIP RAward / grant (A)Common Stock16,261USD 0.00USD 0SEC filing ↗
2026-05-20Callahan Andrew PAward / grant (A)Common Stock16,261USD 0.00USD 0SEC filing ↗
2026-05-20BRLAS LAURIEAward / grant (A)Common Stock16,261USD 0.00USD 0SEC filing ↗
2026-05-08HAGEMANN ROBERTPurchase (P)Common Stock14,000USD 11.00USD 154,000SEC filing ↗
2026-05-07Stafeil JeffreyPurchase (P)Common Stock17,878USD 11.19USD 200,058SEC filing ↗
2026-04-01Fallan ScottOption exercise / conversion (M)Common Stock1,258USD 0.00USD 0SEC filing ↗
2026-04-01Fallan ScottTax withholding (F)Common Stock592USD 9.59USD 5,677SEC filing ↗
2026-03-04Venturelli Larry MPurchase (P)Common Stock17,531USD 11.37USD 199,262SEC filing ↗
2026-03-04Rietbroek RobbertPurchase (P)Common Stock44,278USD 11.32USD 501,227SEC filing ↗
2026-02-26Yost Joseph POption exercise / conversion (M)Common Stock5,421USD 0.00USD 0SEC filing ↗
2026-02-26Yost Joseph PTax withholding (F)Common Stock2,087USD 12.10USD 25,253SEC filing ↗
2026-02-26Spence ElizabethOption exercise / conversion (M)Common Stock3,627USD 0.00USD 0SEC filing ↗
2026-02-26Spence ElizabethTax withholding (F)Common Stock1,304USD 12.10USD 15,778SEC filing ↗
2026-02-26Narvekar NikhilOption exercise / conversion (M)Common Stock402USD 0.00USD 0SEC filing ↗
2026-02-26Narvekar NikhilTax withholding (F)Common Stock81USD 12.10USD 980SEC filing ↗
2026-02-26Lischer Charles DOption exercise / conversion (M)Common Stock2,214USD 0.00USD 0SEC filing ↗
2026-02-26Lischer Charles DTax withholding (F)Common Stock654USD 12.10USD 7,913SEC filing ↗
2026-02-26LeBeau ScottOption exercise / conversion (M)Common Stock805USD 0.00USD 0SEC filing ↗
2026-02-26LeBeau ScottTax withholding (F)Common Stock209USD 12.10USD 2,529SEC filing ↗
2026-02-26Farrell Michael JamesOption exercise / conversion (M)Common Stock4,057USD 0.00USD 0SEC filing ↗
2026-02-26Farrell Michael JamesTax withholding (F)Common Stock1,465USD 12.10USD 17,726SEC filing ↗
2026-02-26Fallan ScottOption exercise / conversion (M)Common Stock603USD 0.00USD 0SEC filing ↗
2026-02-26Fallan ScottTax withholding (F)Common Stock284USD 12.10USD 3,436SEC filing ↗
2026-02-15Yost Joseph POption exercise / conversion (M)Common Stock23,969USD 0.00USD 0SEC filing ↗
2026-02-15Yost Joseph PTax withholding (F)Common Stock13,978USD 12.42USD 173,607SEC filing ↗
2026-02-15Yost Joseph PAward / grant (A)Common Stock11,401USD 0.00USD 0SEC filing ↗
2026-02-15Tashma Lauren S.Option exercise / conversion (M)Common Stock21,317USD 0.00USD 0SEC filing ↗

Multiple price lines in one filing are grouped and share-weighted. Price and value are blank when a grouped filing line lacks price evidence.

Snapshot & identity

Snapshot date2026-10-18
Ranking versionUS-v1.2
Data qualityPASS ELIGIBLE · —
TickerGPK
CIK0001408075
SectorBasic Materials
IndustryPackaging & Containers Yahoo Finance
SEC SIC2650 Paperboard Containers & Boxes
ExchangeNYSE

Data coverage

Local Form 4 history300 transaction lines from 2020-01-02 to 2026-05-20
13 P purchase lines · 21 S sale lines · 266 other lines
SEC company submissionsOpen SEC filings ↗

Local ledger as of 2026-10-18. Mapping status is an audit field and does not erase SEC filing evidence.