Greg Marken, ADA-ES's Chief Accounting Officer, recently disposed of 4,797 shares of the company. The disposals took place at $8.19 per share, on April 14, 2017. Marken still owns 34,130 shares of the company. Marken operates out of Highlands Ranch, CO. Some additional info was provided as follows:

The above information was disclosed in a filing to the SEC. To see the filing, click here.

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Other recent filings from the company include the following:

ADA-ES Just Filed Its Quarterly Report: Basic earnings per s... - Nov. 6, 2017
ADA-ES: Advanced Emissions Solutions Reports Quarter Results - Nov. 6, 2017

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