DEZWIREK PHILLIP

Company

Date

Role

Action

Shares

Amount

Of holding

CECO CECO ENVIRONMENTAL CORP

20 Sep 2011

Chairman

Bought

4,000

$23.68K

0.6%

CECO CECO ENVIRONMENTAL CORP

12 Sep 2011

Chairman

Bought

5,416

$30.84K

0.8%

CECO CECO ENVIRONMENTAL CORP

9 Sep 2011

Chairman

Bought

200

$1.19K

0.0%

CECO CECO ENVIRONMENTAL CORP

8 Sep 2011

Chairman

Bought

5,329

$31.93K

0.8%

CECO CECO ENVIRONMENTAL CORP

7 Sep 2011

Chairman

Bought

10,056

$58.24K

1.6%

CECO CECO ENVIRONMENTAL CORP

27 Jan 2011

Chairman

Bought

10,000

$56.75K

0.5%

CECO CECO ENVIRONMENTAL CORP

26 Jan 2011

Chairman

Bought

5,000

$28.65K

0.2%

CECO CECO ENVIRONMENTAL CORP

25 Jan 2011

Chairman

Bought

3,400

$20.06K

0.2%

CECO CECO ENVIRONMENTAL CORP

18 Jan 2011

Chairman

Bought

1,000

$6.26K

0.0%

CECO CECO ENVIRONMENTAL CORP

14 Jan 2011

Chairman

Bought

500

$3.16K

0.0%

CECO CECO ENVIRONMENTAL CORP

12 Jan 2011

Chairman

Bought

3,007

$18.62K

0.1%

CECO CECO ENVIRONMENTAL CORP

16 Nov 2010

Chairman

Bought

6,884

$36.58K

0.5%

CECO CECO ENVIRONMENTAL CORP

15 Nov 2010

Chairman

Bought

6,002

$32.63K

0.4%

CECO CECO ENVIRONMENTAL CORP

12 Nov 2010

Chairman

Bought

20,200

$105.43K

1.4%

CECO CECO ENVIRONMENTAL CORP

25 Aug 2010

Chairman

Bought

32,000

$176.48K

2.3%

CECO CECO ENVIRONMENTAL CORP

30 Jun 2010

Chairman

Bought

3,000

$14.13K

0.2%

CECO CECO ENVIRONMENTAL CORP

29 Jun 2010

Chairman

Bought

9,000

$42.39K

0.6%

CECO CECO ENVIRONMENTAL CORP

28 Jun 2010

Chairman

Bought

23,823

$120.31K

1.7%

CECO CECO ENVIRONMENTAL CORP

24 Jun 2010

Chairman

Bought

3,600

$17.11K

0.3%

CECO CECO ENVIRONMENTAL CORP

23 Jun 2010

Chairman

Bought

28,035

$134.96K

2.1%

CECO CECO ENVIRONMENTAL CORP

11 Jun 2010

Chairman

Bought

500

$2.35K

0.0%

CECO CECO ENVIRONMENTAL CORP

10 Jun 2010

Chairman

Bought

3,500

$16.51K

0.3%

CECO CECO ENVIRONMENTAL CORP

9 Jun 2010

Chairman

Bought

17,700

$80.14K

1.3%

CECO CECO ENVIRONMENTAL CORP

9 Apr 2010

Chairman

Bought

5,000

$20.50K

0.4%

CECO CECO ENVIRONMENTAL CORP

6 Apr 2010

Chairman

Bought

11,500

$43.17K

0.9%

CECO CECO ENVIRONMENTAL CORP

5 Apr 2010

Chairman

Bought

20,000

$78.00K

1.6%

CECO CECO ENVIRONMENTAL CORP

31 Mar 2010

Chairman

Bought

12,600

$44.69K

1.0%

CECO CECO ENVIRONMENTAL CORP

30 Mar 2010

Chairman

Bought

56,500

$200.97K

4.7%

CECO CECO ENVIRONMENTAL CORP

18 Aug 2009

Chief Executive Officer

Bought

10,000

$30.00K

6.1%

CECO CECO ENVIRONMENTAL CORP

12 Aug 2009

Chief Executive Officer

Bought

10,000

$27.00K

6.5%

CECO CECO ENVIRONMENTAL CORP

11 Aug 2009

Chief Executive Officer

Bought

10,000

$27.40K

7.0%

CECO CECO ENVIRONMENTAL CORP

11 Aug 2009

Chief Executive Officer

Bought

10,000

$26.70K

0.8%

CECO CECO ENVIRONMENTAL CORP

13 May 2009

Chief Executive Officer

Bought

7,500

$26.18K

0.6%

CECO CECO ENVIRONMENTAL CORP

12 May 2009

Chief Executive Officer

Bought

10,000

$37.90K

0.8%

CECO CECO ENVIRONMENTAL CORP

26 Nov 2008

Chief Executive Officer

Bought

10,000

$22.00K

0.8%

CECO CECO ENVIRONMENTAL CORP

25 Nov 2008

Chief Executive Officer

Bought

7,500

$15.75K

0.6%

CECO CECO ENVIRONMENTAL CORP

12 Nov 2008

Chief Executive Officer

Bought

43,500

$76.23K

3.9%

CECO CECO ENVIRONMENTAL CORP

11 Nov 2008

Chief Executive Officer

Bought

43,198

$82.30K

4.0%

CECO CECO ENVIRONMENTAL CORP

9 Oct 2008

Chief Executive Officer

Bought

313,061

$782.65K

40.7%

CECO CECO ENVIRONMENTAL CORP

17 Sep 2008

Chief Executive Officer

Bought

41,000

$174.25K

5.6%

CECO CECO ENVIRONMENTAL CORP

12 Sep 2008

Chief Executive Officer

Bought

5,000

$23.50K

0.7%

CECO CECO ENVIRONMENTAL CORP

11 Sep 2008

Chief Executive Officer

Bought

12,000

$57.60K

1.7%

CECO CECO ENVIRONMENTAL CORP

4 Sep 2008

Chief Executive Officer

Bought

29,700

$149.99K

4.4%

CECO CECO ENVIRONMENTAL CORP

3 Sep 2008

Chief Executive Officer

Bought

30,000

$143.88K

4.6%

CECO CECO ENVIRONMENTAL CORP

2 Sep 2008

Chief Executive Officer

Bought

55,200

$261.24K

9.2%

CECO CECO ENVIRONMENTAL CORP

29 Aug 2008

Chief Executive Officer

Bought

5,000

$24.00K

0.8%

CECO CECO ENVIRONMENTAL CORP

28 Aug 2008

Chief Executive Officer

Bought

18,900

$87.60K

3.3%

CECO CECO ENVIRONMENTAL CORP

21 Aug 2008

Chief Executive Officer

Bought

10,000

$47.00K

1.8%

CECO CECO ENVIRONMENTAL CORP

20 Aug 2008

Chief Executive Officer

Bought

5,000

$24.00K

0.9%

CECO CECO ENVIRONMENTAL CORP

19 Aug 2008

Chief Executive Officer

Bought

47,000

$224.62K

9.2%

CECO CECO ENVIRONMENTAL CORP

18 Aug 2008

Chief Executive Officer

Bought

17,500

$85.71K

3.5%

CECO CECO ENVIRONMENTAL CORP

15 Aug 2008

Chief Executive Officer

Bought

18,000

$89.59K

3.8%

CECO CECO ENVIRONMENTAL CORP

30 May 2008

Chief Executive Officer

Bought

25,000

$164.25K

5.5%

CECO CECO ENVIRONMENTAL CORP

15 May 2008

Chief Executive Officer

Bought

15,000

$112.85K

11.7%

CECO CECO ENVIRONMENTAL CORP

14 May 2008

Chief Executive Officer

Bought

5,000

$37.50K

4.1%

CECO CECO ENVIRONMENTAL CORP

24 Mar 2008

Chief Executive Offficer

Bought

20,000

$135.00K

4.6%

CECO CECO ENVIRONMENTAL CORP

20 Mar 2008

Chief Executive Offficer

Bought

20,000

$135.60K

4.9%

CECO CECO ENVIRONMENTAL CORP

17 May 2007

Chief Executive Officer

Sold, plan not stated

1,250,000

$13.29M

80.1%