David W. Maclennan has not been actively trading shares of Ecolab during the last quarter. Most recently, on Thursday, May 5th, David Maclennan bought 600 shares of Ecolab stock. The stock was acquired at an average cost of $171.01 per share, with a total value of $102,606.00. Following the completion of the transaction, the director now directly owns 11,351 shares of the company's stock, valued at $1,941,134.51. Learn More on David W. Maclennan's trading history.