UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G/A Under the Securities Exchange Act of 1934 (Amendment No. 2)* Entegris, Inc. -------------------------------------------------- (Name of Issuer) Common Stock -------------------------------------------------- (Title of Class of Securities) 29362U104 -------------------------------------------------- (CUSIP Number) *The remainder of this cover page shall be filled out for a reporting person's initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter the disclosures provided in a prior cover page. The information required in the remainder of this cover page shall not be deemed to be "filed" for the purpose of Section 18 of the Securities Exchange Act of 1934 ("Act") or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes). Page 1 of 5

- ------------------------- ------------------------- CUSIP No. 29362U104 13G/A Page 2 of 5 Pages - ------------------------- ------------------------- - ---------- -------------------------------------------------------------------- 1 NAME OF REPORTING PERSON S.S. or I.R.S. IDENTIFICATION NO. OF ABOVE PERSON WCB Holdings LLC, a Minnesota Limited Liability Company - ---------- -------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* Not Applicable. (a) [ ] (b) [ ] - ---------- -------------------------------------------------------------------- 3 SEC USE ONLY - ---------- -------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION WCB Holdings L.L.C. is a limited liability company organized in the State of Minnesota. - ---------- -------------------------------------------------------------------- 5 SOLE VOTING POWER 16,265,608 NUMBER OF ------- -------------------------------------------------- SHARES 6 SHARED VOTING POWER BENEFICIALLY OWNED BY 0 EACH ------- -------------------------------------------------- REPORTING 7 SOLE DISPOSITIVE POWER PERSON WITH 16,265,608 ------- -------------------------------------------------- 8 SHARED DISPOSITIVE POWER 0 - ---------- -------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 16,265,608 - ---------- -------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* - ---------- -------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 22.8% - ---------- -------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* OO - ---------- -------------------------------------------------------------------- * SEE INSTRUCTION BEFORE FILLING OUT! Page 2 of 5

Item 1. (a) Name of Issuer: Entegris, Inc. (b) Address of Issuer's Principal Executive Office: 3500 Lyman Boulevard Chaska, MN 55318 Item 2. (a) Name of Person Filing: WCB Holdings LLC (b) Address of Principal Business Office: 950 Lake Drive Chaska, MN 55317 (c) Citizenship: Minnesota, U.S.A. (d) Title of Class of Securities: Common Stock, $.01 par value (e) CUSIP Number: 29362U104 Item 3. Not Applicable. Page 3 of 5

Item 4. Ownership (a) Amount beneficially owned as of December 31, 2002: 16,265,608 (b) Percent of Class: 22.8% (c) Number of Shares as to Which Such Person Has: (i) sole power to vote or direct the vote: 16,265,608 (ii) shared power to vote or direct the vote: Not applicable. (iii) sole power to dispose or direct the disposition of: 16,265,608 (iv) shared power to dispose or to direct the disposition of: Not applicable. Item 5. Not Applicable. Item 6. Not Applicable. Item 7. Not Applicable. Item 8. Not Applicable. Item 9. Not Applicable. Item 10. Not Applicable. Page 4 of 5

SIGNATURE After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct. Dated: February 13, 2003 WCB Holdings LLC By: /s/ Anthony M. Marick ------------------------------- Anthony M. Marick Chief Manager Page 5 of 5