APTARGROUP INC (ATR) Institutional Ownership and Insiders Activity

APTARGROUP INC (ATR) is widely held by institutional investors, with 2 tracked firms reporting positions valued at approximately $22.19M based on SEC Form 13F filings for the quarter ended March 31, 2026.

Renaissance Technologies LLC is the largest disclosed holder, reporting approximately $21.78M in ATR holdings in its latest filing.

Institutional ownership among tracked investors remains highly concentrated, with Renaissance Technologies LLC representing the majority of disclosed value.