Stephan B. Tanda, chief executive officer of AptarGroup, Inc. ($ATR), sold 9,838 shares of company stock on August 3, 2026, collecting $1,339,588 at a weighted average price of $136.16 per share. The open-market transaction, disclosed in a Form 4 the following day, continued a streak: every insider trade recorded at AptarGroup has been a sale. Tanda still held 238,729 shares after the transaction.
In the weeks before Tanda's sale, Chief Human Resources Officer Shiela Vinczeller sold 3,555 shares across three June 2026 trades for approximately $400,000. Vice President Irene Elizabeth Hudson sold 1,264 shares over two May 2026 transactions for roughly $156,000. Earlier, in February 2026, President Gael Touya sold 3,500 shares for $494,739, and President Marc Prieur sold 2,000 shares for $275,620. December 2025 saw Chief Accounting Officer Daniel Ackerman sell 15,000 shares for $1,818,435. Additional sales in mid-2025 involved Touya, Vinczeller, and Vice President Kimberly Chainey.
Congressional disclosures show six House members traded $ATR stock since 2016. Representative Michael T. McCaul (R-Texas) reported nine of the 25 congressional $ATR trades in the database, spanning purchases and sales from August 2022 through November 2025. His last $ATR filing was a purchase in the $15,001 to $50,000 range on November 19, 2025, reported 20 days later on December 9, 2025. Representative David B. Mckinley (R-West Virginia) also disclosed nine trades, all between 2016 and 2018, including buys and sells. Representative Lisa Mcclain (R-Michigan) disclosed a single purchase of $1,001 to $15,000 on June 24, 2025, reported 50 days later on August 13, 2025. Three Democrats disclosed $ATR trades in 2019: Susie Lee of Nevada, Bradley S. Schneider of Illinois, and Elizabeth Fletcher of Texas. All congressional figures are midpoint estimates of the reporting ranges required by the STOCK Act.
AptarGroup, based in Crystal Lake, Illinois, makes dispensing, sealing, and active packaging for the pharmaceutical, beauty, food, and beverage industries. The company trades on the New York Stock Exchange under $ATR with a market capitalization around $8.7 billion.