NATCO GROUP INC

Q: Sep 30 2009

Q: Jun 30 2009

Q: Mar 31 2009

FY: Dec 31 2008

Q: Sep 30 2008

Q: Jun 30 2008

Q: Mar 31 2008

FY: Dec 31 2007

FY: Dec 31 2007

Q: Sep 30 2007

Q: Jun 30 2007

Q: Mar 31 2007

FY: Dec 31 2006

Q: Sep 30 2006

Q: Jun 30 2006

Q: Mar 31 2006

FY: Dec 31 2005

FY: Dec 31 2004

Q: Sep 30 2005

Q: Sep 30 2005

Results of Operations and Financial Condition

2.02,9.01

8.01

5.02,9.01

1.01,3.03,5.02,8.01,9.01

5.02,9.01

Results of Operations and Financial Condition

5.02,9.01

2.02,7.01

5.02,9.01

7.01,9.01

Entry into a Material Definitive Agreement

2.02,7.01,9.01

7.01,9.01

Regulation FD Disclosure

Results of Operations and Financial Condition

5.02

3.03,5.03,9.01

Results of Operations and Financial Condition

Results of Operations and Financial Condition

Certification of termination of registration of a class of securities (Section 12(b))

Notification of removal from listing and/or registration on a national securities exchange

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Definitive Proxy Statement

Definitive Proxy Statement

Definitive Proxy Statement

Definitive Proxy Statement

Definitive Proxy Statement

Additional Information for Proxy Statement/ Votes

Definitive Proxy Statement

Definitive Proxy Statement

Definitive Proxy Statement

Definitive Proxy Statement

Definitive Proxy Statement

Jean Robert Gregory

Thompson Joseph Scott

Graves James Douglas

Eriksen Knut

ELLIS KATHERINE P

EDWARDS JULIE H

CURCIO ROBERT A

CLARKE JOHN U

LEONG RICHARD

BATES THOMAS R JR

ALLAN KEITH K

Smith Charles Andrew

MCCARTHY PATRICK M

SMITH C FRANK

Weathers Walter T. III

WILSON JOSEPH H

HICKOX GEORGE K JR

Knudson Thomas C

Thompson Joseph Scott

Thompson Joseph Scott

Annual reports of employee stock purchase savings and similar plans pursuant to Section 15(d)

Annual Report Scanned (Paper)

Letter from the SEC

Correspondence with the SEC

Letter from the SEC

Correspondence with the SEC

Correspondence with the SEC

Letter from the SEC

Annual reports of employee stock purchase savings and similar plans pursuant to Section 15(d)

Annual reports of employee stock purchase savings and similar plans pursuant to Section 15(d)

Correspondence with the SEC

Letter from the SEC

Correspondence with the SEC

Annual reports of employee stock purchase savings and similar plans pursuant to Section 15(d)

Letter from the SEC

Letter from the SEC

Correspondence with the SEC

Letter from the SEC

Correspondence with the SEC

Letter from the SEC