UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933 ATTENTION: Transmit for filing 3 copies of this form concurrently with either placing an order with a broker to execute sale or executing a sale directly with a market maker ________________________________________________________________________________ 1(a) NAME OF ISSUER (Please type or print) NATCO GROUP, INC. -------------------------------------------------------------------------------- 1(b) IRS IDENT. NO. | (c) SEC FILE NO. | 22-2906892 | 1-15603 -------------------------------------------------------------------------------- 1(d) ADDRESS OF ISSUER STREET 2950 NORTH LOOP WEST, SUITE 750 -------------------------------------------------------------------------------- 1(d) CITY STATE ZIP CODE HOUSTON TEXAS 77092 -------------------------------------------------------------------------------- 1(e) TELEPHONE -------------------------------------------------------------------------------- AREA CODE | NUMBER | 713 | 683-9292 ________________________________________________________________________________ 2(a) NAME OF PERSON FOR WHOSE ACCOUNT THE SECURITIES ARE TO BE SOLD CAPRICORN HOLDINGS, INC. -------------------------------------------------------------------------------- 2(b) IRS IDENT. NO. (c) RELATIONSHIP TO ISSUER 06-1209841 DIRECTOR -------------------------------------------------------------------------------- 2(d) ADDRESS STREET 30 EAST ELM STREET -------------------------------------------------------------------------------- 2(d) CITY STATE ZIP CODE GREENWICH CONNECTICUT 06830 -------------------------------------------------------------------------------- INSTRUCTION: The person filing this notice should contact the issuer to obtain the I.R.S. Identification Number and the SEC File Number. ------------------------------------------------------------------------------------------------------------------------------------ SEC USE 3(a) (b) ONLY (c) (d) (e) (f) (g) Title of the Name and Address of Broker- Number of Aggregate Number of Shares Approximate Name of Each Class of Each Broker Through Dealer Shares or Market or Other Units Date of Sale Securities Securities Whome the Securities File Other Units Value Outstanding (See instr. 3(f)) Exchange to be Sold are to be Offered Number to be Sold (See instr. (See instr. 3(e)) (MO. DAY YR.) (See instr. 3(g)) or Each Market (See instr. 3(d)) Maker who is 3(c)) Aquiring the Securities ------------------------------------------------------------------------------------------------------------------------------------ Common Jefferies & Company 375,666 $13,430,059.5(1) 17,323,147 On or after NYSE Stock 55 W. Monroe Street November 14, Suite 3500 2006 Chicago, Il 60603 ------------------------------------------------------------------------------------------------------------------------------------ (1) Based on the closing price of $35.75 on November 13, 2006 INSTRUCTIONS: 1.(a) Name of issuer (b) Issuer's I.R.S. Identification Number (c) Issuer'S S.E.C. file number, if any (d) Issuer's address, including zip code (e) Issuer's telephone number, including area code 2.(a) Name of person for whose account the securities are to be sold (b) Such person's I.R.S. identification number, if such person is an entity (c) Such person's relationship to the issuer (e.g., officer, director, 10% stockholder, or member of immediate family of any of the foregoing) (d) Such person's address, including zip code 3.(a) Title of the class of securities to be sold (b) Name and address of each broker through whom the securities are intended to be sold (c) Number of shares or other units to be sold (if debt securities, give the aggregate face amount) (d) Aggregate market value of the securities to be sold as of a specified date within 10 days prior to the filing of this notice (e) Number of shares or other units of the class outstanding, or if debit securities the face amount thereof outstanding, as shown by the most recent report or statement published by the issuer (f) Approximate date on which the securities are to be sold (g) Name of each securities exchange, if any, on which the securities are intended to be sold TABLE I - SECURITIES TO BE SOLD Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor: Name of Person Nature of from Whom Acquired Amount of Title of Date You Acquisition (If gift, also give date Securities Date of the Class Acquired Transaction donor acquired) Acquired Payment Nature of Payment ------------------------------------------------------------------------------------------------------------------------------------ Common 02/04/00 Distribution Capricorn Investors, L.P. 1,887,741 N/A N/A Stock ------------------------------------------------------------------------------------------------------------------------------------ INSTRUCTIONS: 1. If the securities were purchased and full payment therefore was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid. TABLE II - SECURITIES SOLD DURING THE PAST 3 MONTHS Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold. Amount of Gross Name and Address of Seller Title of Securities Sold Date of Sale Securities Proceeds ------------------------------------------------------------------------------------------------------- NONE ------------------------------------------------------------------------------------------------------- REMARKS: INSTRUCTIONS: See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice. ATTENTION: The person for whose account the securities to which this notice relates are to sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which have not been publicly disclosed. November 14, 2006 /s/ HERBERT S. WINOKUR, JR. ----------------------------------- ---------------------------------------- (DATE OF NOTICE) (SIGNATURE) The notice shall be signed by the person for whose account the securities are to be sold. At least one copy of the notice shall be manually signed. Any copies not manually signed shall bear typed or printed signatures. ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001).