As Of	Filer	Filing¹	For·On·As	Docs:Size	Issuer		Filing Agent

12/16/02  Smith Stephen R                   4          Officer²    1:5K   CMC Materials, Inc.               CMC Materials, Inc.      
12/16/02  Wobby Daniel S                    4          Officer²    1:5K   CMC Materials, Inc.               CMC Materials, Inc.      
12/16/02  Pike Daniel J                     4          Officer²    1:5K   CMC Materials, Inc.               CMC Materials, Inc.      
12/16/02  Perry Kathleen A                  4          Officer²    1:5K   CMC Materials, Inc.               CMC Materials, Inc.      
12/16/02  Nishiya Hiroyuki                  4          Officer²    1:5K   CMC Materials, Inc.               CMC Materials, Inc.      
12/16/02  Neville Matthew                   4          Officer²    1:5K   CMC Materials, Inc.               CMC Materials, Inc.      
12/16/02  Eckstein Bernstein H Carol        4          Officer²    1:5K   CMC Materials, Inc.               CMC Materials, Inc.      
12/11/02‡ Wasatch Advisors Inc.             SC 13G/A               1:4K   CMC Materials, Inc.                                        

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‡	A non-Insider-Ownership Filing that was accepted after the SEC “closed” at 5:30:00pm ET.  The legal “Filed As Of” date may be the next, or another, day.
¹	Filing/Form Types:
	4	Statement of Changes in Beneficial Ownership of Securities by an Insider — Form 4 { The Filer is an Insider² of the Issuer }.
	SC 13G	Statement of Acquisition of Beneficial Ownership by a “Passive” Investor — Schedule 13G.
	/A	Amendment to, or Amended version of, a previous Filing of this Type.
²	Insider:  The Filer is a Director, Officer, 10% Owner and/or Other “insider” of the Issuer.