Silgan Holdings Inc. Exhibit 99.1 SILGAN ANNOUNCES SECOND QUARTER 2026 RESULTS Highlights NORWALK, CT, July 29, 2026 -- Silgan Holdings Inc. (NYSE: SLGN), a leading supplier of sustainable rigid packaging solutions for the world's essential consumer goods products, today reported second quarter 2026 net sales of $1.64 billion and net income of $75.8 million, or $0.72 per diluted share, as compared to second quarter 2025 net sales of $1.54 billion and net income of $89.0 million, or $0.83 per diluted share. ...