Form 4 Filing for Stephan B. Tanda

This filing details a transaction by Stephan B. Tanda, President and CEO of APTARGROUP, INC. (ATR). On February 23, 2026, Mr. Tanda disposed of 987 shares of Common Stock at a price of $145.72 per share. This transaction resulted in a post-transaction ownership of 203,999 shares. Additionally, Mr. Tanda holds 3,127 shares of Common Stock indirectly through a 401(k) trust. The filing was signed on February 24, 2026, by Mr. Tanda, with Irene Hudson acting as his attorney-in-fact.