CCMP: Insider Roster for Cabot Microelectronics Corporat

Individual/Entity	Most Recent Trans.	Shares Owned as of Trans. Date
BIRGENEAU ROBERT J Director	Acquisition (Non Open Market) 3-Mar-09	6,000 3-Mar-09
DAMASHEK YUMIKO Officer	Acquisition (Non Open Market) 31-Dec-08	6,092 31-Dec-08
DELRUE JEAN POL Officer	Acquisition (Non Open Market) 12-Dec-07	13,887 12-Dec-07
ECKSTEIN BERNSTEIN H CAROL Officer	Acquisition (Non Open Market) 30-Jun-09	22,526 30-Jun-09
FRAZEE JOHN P JR Director	Sale 29-Jul-09	6,000 29-Jul-09
FULLER H LAURANCE Director	Acquisition (Non Open Market) 3-Mar-09	13,000 3-Mar-09
JOHNSON WILLIAM S Officer	Acquisition (Non Open Market) 30-Jun-09	36,521 30-Jun-09
KLEIN BARBARA A Director	Acquisition (Non Open Market) 3-Mar-09	6,500 3-Mar-09
LI DAVID H Officer	Sale 30-Apr-09	7,958 30-Apr-09
MOONEY EDWARD J Director	Acquisition (Non Open Market) 3-Mar-09	6,000 3-Mar-09
NOGLOWS WILLIAM P Officer	Acquisition (Non Open Market) 30-Jun-09	95,516 30-Jun-09
PIKE DANIEL J Officer	Acquisition (Non Open Market) 30-Jun-09	36,088 30-Jun-09
ROMAN THOMAS S Officer	Acquisition (Non Open Market) 31-Dec-08	5,552 31-Dec-08
SMITH STEPHEN R Officer	Disposition (Non Open Market) 1-Dec-08	20,762 1-Dec-08
SPIRO CLIFFORD L Officer	Acquisition (Non Open Market) 30-Jun-09	35,332 30-Jun-09
WEISMAN ADAM Officer	Acquisition (Non Open Market) 30-Jun-09	29,329 30-Jun-09
WILKINSON STEVEN V Director	Acquisition (Non Open Market) 3-Mar-09	15,360 3-Mar-09
WOBBY DANIEL S Officer	Acquisition (Non Open Market) 10-Dec-08	34,447 10-Dec-08
XIA BAILING Director	Acquisition (Non Open Market) 3-Mar-09	8,500 3-Mar-09

View Transactions for Insiders & Institutional Holders

*	Insider roster data is derived solely from the last 24 months of Form 3 & Form 4 SEC filings.

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