SEC CIK 2002890

Rietbroek Robbert

Reported ownership across 1 company, sourced from SEC Form 4 filings and updated daily.

Current Positions

CompanyShares OwnedAs Of
GPKview stock →44,2782026-03-04

Position History — GPK

Reported shares owned immediately after each Form 4 transaction, over time.

Not enough filing history yet to chart a trend for GPK.

Recent Filings — GPK

DateActivitySharesPriceOwned After
2026-03-04Open-market buy44,278$11.3244,278
2026-02-25Grant / award (derivative)165,030$0.00165,030

Source: SEC EDGAR Form 4 filings. For informational purposes only — not investment advice.