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Sunday, November 29, 2009, 10:59AM ET - U.S. Markets Closed. Dow  1.48% Nasdaq  1.73%

MKS Instruments Inc. (MKSI)

On Nov 27: 15.22   0.25 (1.62%)

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Major Holders Get Major Holders for:
BREAKDOWN % of Shares Held by All Insider and 5% Owners: 6% % of Shares Held by Institutional & Mutual Fund Owners: 93% % of Float Held by Institutional & Mutual Fund Owners: 99% Number of Institutions Holding Shares: 140 MAJOR DIRECT HOLDERS (FORMS 3 & 4) Holder Shares Reported BERTUCCI CLAIRE R 2,144,761 1-May-08 BERTUCCI JOHN R 812,257 16-Oct-09 BERLINGHIERI LEO 57,417 14-Sep-09 ANDERSON ROBERT R 24,000 6-Nov-09 AMON CRISTINA 13,555 9-Nov-09
TOP INSTITUTIONAL HOLDERS Holder Shares % Out Value* Reported DIMENSIONAL FUND ADVISORS LP 4,052,912 8.19 $78,180,672 30-Sep-09 KORNITZER CAPITAL MANAGEMENT, INC. 3,920,637 7.92 $75,629,087 30-Sep-09 Barclays Global Investors UK Holdings Ltd 3,470,981 7.01 $66,955,223 30-Sep-09 FMR LLC 2,255,922 4.56 $43,516,735 30-Sep-09 VANGUARD GROUP, INC. (THE) 2,077,621 4.20 $40,077,309 30-Sep-09 Bank of New York Mellon Corporation 1,557,273 3.15 $30,039,796 30-Sep-09 Capital Research Global Investors 1,393,715 2.82 $26,884,762 30-Sep-09 ALYDAR PARTNERS, LLC 1,150,000 2.32 $22,183,500 30-Sep-09 STATE STREET CORPORATION 1,143,783 2.31 $22,063,574 30-Sep-09 ROYCE & ASSOCIATES, LLC 7,280,030 14.70 $140,431,778 30-Sep-09 TOP MUTUAL FUND HOLDERS Holder Shares % Out Value* Reported BUFFALO SMALL CAP FUND 3,008,468 6.08 $39,531,269 30-Jun-09 ROYCE PREMIER FUND 2,941,910 5.94 $38,656,697 30-Jun-09 DFA U.S. SMALL CAP VALUE SERIES 2,124,394 4.29 $33,246,766 30-Apr-09 ROYCE LOW-PRICED STOCK FUND 1,419,600 2.87 $18,653,544 30-Jun-09 FIDELITY VALUE FUND 1,117,970 2.26 $21,565,641 30-Sep-09 VANGUARD EXPLORER FUND, INC. 838,350 1.69 $16,238,839 31-Jul-09 ROYCE VALUE FUND 777,200 1.57 $10,212,408 30-Jun-09 ISHARES RUSSELL 2000 INDEX FD 724,514 1.46 $13,975,875 30-Sep-09 ISHARES S&P SMALLCAP 600 INDEX FD 643,146 1.30 $10,058,803 31-Oct-09 ROYCE VALUE PLUS FUND 612,900 1.24 $8,053,506 30-Jun-09 View Transactions for Insiders & Institutional Holders * Value shown is computed using the security's price on the report date given.
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