By CapitalSnitch Research Desk · updated Oct 11, 2026 · data from SEC filings and official Congress disclosures
Over the last 12 months, four Graphic Packaging Holding Co insiders bought shares on the open market, about $1.1 million in total, and none of them sold.
Rietbroek Robbert (CEO) made the biggest buy, worth around $501,000. C-suite participation is part of the picture here.
GPK also shows up in congressional disclosures: 3 reported trades from two lawmakers in two years. Big money check: 501 institutions held GPK as of Q2 2026, and more funds bought than sold. Zooming out by quarter: No open-market insider buying or selling in the last full quarter. Insiders bought in 2 of the last 7 full quarters.
Are insiders buying or selling GPK stock?
In the last 12 months Graphic Packaging Holding Co insiders made open-market purchases worth about $1.1 million and sales worth about $0. Data comes from SEC Form 4 filings, updated every 30 minutes on CapitalSnitch.
When was the last insider trade in GPK?
The most recent open-market insider trade in GPK was filed on 2026-05-11.
How many institutions own GPK?
501 investment managers reported holding GPK in SEC Form 13F filings for Q2 2026.
Has any member of Congress traded GPK?
Yes. Members of Congress reported 3 trades in GPK over the past two years. The full list is free on CapitalSnitch.
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Public-record data for research and education, not investment advice. Insider sales are often pre-planned (10b5-1).
Congress data: Data derived from public disclosures filed under the Ethics in Government Act and the STOCK Act, republished free for public transparency and news reporting. Disclosures may lag the trade by 45 days or more and show amounts only as ranges. This data may not be used for credit rating, loan underwriting, solicitation of money (political, charitable or other), direct-mail or commercial targeting (5 U.S.C. 13107).