Ownership Submission
FORM 4
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
WINOKUR HERBERT S JR
   2. Issuer Name and Ticker or Trading Symbol
NATCO GROUP INC [NTG] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
__X__ Director __X__ 10% Owner
_____ Officer (give title below) _____ Other (specify below)
(Last)
(First)
(Middle)
30 EAST ELM STREET		 3. Date of Earliest Transaction (Month/Day/Year)
06/01/2006
(Street)

GREENWICH, CT 06830		 4. If Amendment, Date Original Filed(Month/Day/Year)
 6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)		 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code
(Instr. 8)		 4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)		 5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4)		 6. Ownership Form: Direct (D) or Indirect (I)
(Instr. 4)		 7. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V Amount (A) or (D) Price
Class A Common Stock, par value $0.01 per share (1) 06/01/2006 06/01/2006 A   2,500 A $ 31.16 28,928 D  
Class A Common Stock, par value $0.01 per share (2) 06/02/2006 06/02/2006 M   6,667 A $ 10 2,089,977 (3) I See Footnote (3)
Class A Common Stock, par value $0.01 per share (2) 06/02/2006 06/02/2006 M   2,667 A $ 7.95 2,089,977 (3) I See Footnote (3)
Class A Common Stock, par value $0.01 per share (2) 06/02/2006 06/02/2006 M   1,599 A $ 6.8 2,089,977 (3) I See Footnote (3)
Class A Common Stock, par value $0.01 per share (2) 06/02/2006 06/02/2006 M   901 A $ 6.8 2,089,977 (3) I See Footnote (3)
Class A Common Stock, par value $0.01 per share (2) 06/02/2006 06/02/2006 M   2,500 A $ 7.24 2,089,977 (3) I See Footnote (3)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 3)		 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code
(Instr. 8)		 5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4, and 5)		 6. Date Exercisable and Expiration Date
(Month/Day/Year)		 7. Title and Amount of Underlying Securities
(Instr. 3 and 4)		 8. Price of Derivative Security
(Instr. 5)		 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 4)		 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 4)		 11. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Stock Option $ 0 06/02/2006 06/02/2006 M     6,667 01/01/2001 01/01/2010 Common Stock 6,667 $ 0 0 I See Footnote (3)
Stock Option $ 0 06/02/2006 06/02/2006 M     2,667 08/06/2002 08/06/2011 Common Stock 2,667 $ 0 0 I See Footnote (3)
Stock Option $ 0 06/02/2006 06/02/2006 M     1,599 06/03/2004 06/03/2013 Common Stock 1,599 $ 0 0 I See Footnote (3)
Stock Option $ 0 06/02/2006 06/02/2006 M     301 06/03/2004 06/03/2013 Common Stock 301 $ 0 0 I See Footnote (3)
Stock Option $ 0 06/02/2006 06/02/2006 M     2,500 06/15/2005 06/15/2014 Common Stock 2,500 $ 0 0 I See Footnote (3)

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
WINOKUR HERBERT S JR
30 EAST ELM STREET
GREENWICH, CT 06830		   X   X    

Signatures

 /s/ Herbert S. Winokur, Jr.   06/05/2006
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) Represents an award of restricted stock pursuant to stockholder approved incentive compensation plan. Restrictions on the award lapse 100% after one year of service, or on June 1, 2007, or sooner, on the death, disability or retirement after age 68 of the recipient, or upon a corporate change. The stock was issued on June 1, 2006, and therefore has no expiration date, but could be forfeited if service ends prior to June 1, 2007, under certain circumstances.
(2) Represents the exercise by Capricorn Investors II, L.P. ("Capricorn") of a total of 14,334 options to purchase shares of NATCO Group ("Shares"). Mr. Winokur is the managing member of Capricorn Holdings, LLC ("Holdings, LLC"), the general partner of Capricorn.
(3) Mr. Winokur holds 28,928 Shares directly, and 1,835,951 shares indirectly through Capricorn Holdings, Inc. of which Mr. Winokur is the sole shareholder. Additionally, Winokur Family Investors, LLC, of which Mr. Winokur is a beneficial owner, directly owns 148,659 Shares. Holdings LLC, of which Winokur Family Investors LLC has an interest, owns 52,105 Shares. Capricorn owns 24, 334 Shares. Mr. Winokur is deemed beneficial owner of 2,089,977 Shares. Mr. Winokur disclaims pecuniary interest in 188,139 Shares.

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