GRAPHIC PACKAGING HOLDING CO 8-K

What Happened

• Graphic Packaging Holding Company filed an 8-K on June 11, 2026 reporting that Philip R. Martens retired as a member and Chairman of the Board effective June 11, 2026 following the Annual Meeting of Stockholders.
• Larry M. Venturelli, a director since 2016, was elected Chairman of the Board effective upon Mr. Martens’ retirement. A press release announcing the change is attached as Exhibit 99.1 to the filing.

Key Details

• Retirement and chair transition effective: June 11, 2026 (date of filing and Annual Meeting).
• Incoming Chair: Larry M. Venturelli — Board member since 2016.
• Outgoing Chair: Philip R. Martens — retired from Board and Chair role.
• Filing signed by Daniel S. Fishbein, Executive VP, General Counsel and Secretary; press release included as Exhibit 99.1.

Why It Matters

• This is a governance-level change that shifts Board leadership but does not report any changes to the company’s CEO, CFO, or executive management.
• For investors, a new Board Chair can influence board priorities and oversight of strategy and risk; the immediate effect is continuity given Mr. Venturelli’s long tenure as a director.
• Review the attached press release (Exhibit 99.1) or future filings for any follow-up commentary on board composition, committee assignments, or strategic direction.