Air Products & Chemicals (APD, Financial) shares surged by 7.93% recently following the news of a significant activist investment. Mantle Ridge, an investment firm, has acquired over $1 billion in shares and plans to advocate for strategic changes at the company.Despite Air Products & Chemicals (APD, Financial) showing a positive price movement with its shares currently priced at $308.14, the company has underperformed in comparison to its competitor Linde over the past three years. This underperformance is ...