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The Reporting Person undertakes to provide, upon request by the Commission Staff, the Issuer or a security holder of the Issuer, full information regarding the number of shares sold at each separate price"}],"balance_after":1410616,"source":{"system":"sec-edgar","filing":"0000899243-17-020412","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/3197/000089924317020412/doc4.xml","form_type":"4"}},{"id":4315056,"issuer":{"id":4034,"kind":"organization","name":"CECO ENVIRONMENTAL CORP"},"owners":[{"id":35308,"kind":"person","name":"DEZWIREK JASON","position":1,"cik":"0000946589","reported_name":"DEZWIREK JASON","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2017-05-18T21:55:01.000Z","date":"2017-05-16","kind":"grant","acquired":true,"shares":7642,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":1385616,"source":{"system":"sec-edgar","filing":"0000899243-17-013749","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/3197/000089924317013749/doc4.xml","form_type":"4"}},{"id":4528299,"issuer":{"id":4034,"kind":"organization","name":"CECO ENVIRONMENTAL CORP"},"owners":[{"id":35308,"kind":"person","name":"DEZWIREK JASON","position":1,"cik":"0000946589","reported_name":"DEZWIREK JASON","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Warrant (right to buy)","published_at":"2016-12-09T12:31:04.000Z","date":"2016-12-08","kind":"other","acquired":false,"shares":250000,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"By Icarus Investment Corp."},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Filer is an officer of Icarus Investment Corp. 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(\"CECO\") for $9.07 per share. Icarus paid the exercise price on a cashless basis pursuant to the terms of the warrant agreement governing the warrant, resulting in CECO's withholding of 160,360 of the warrant shares to pay the exercise price and issuing to Icarus the remaining 89,640 of the warrant shares.  The payment of the exercise price of the warrant on a cashless basis was previously approved by the Compensation Committee of the Board of Directors of CECO for purposes of Rule 16b-3(e) under the Securities Exchange Act of 1934."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Filer is an officer of Icarus Investment Corp. 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