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Form SC TO-I/A - Tender offer statement by Issuer: [Amend]
SEC Accession No. 0000950123-09-036869
Filing Date
2009-08-20
Accepted
2009-08-20 14:04:19
Documents
20

Document Format Files

Seq Description Document Type Size
1 MKS INSTRUMENTS, INC. b76921sctoviza.htm SC TO-I/A 45150
2 EX-(A)(1)(A) OFFER TO EXCHANGE CERTAIN OUTSTANDING OPTIONS FOR RESTRICTED STOCK b76921exv99wxayx1yxay.htm EX-99.(A)(1)(A) 331202
3 EX-(A)(1)(Q) SLIDES FOR EMPLOYEE INFORMATION SESSIONS b76921exv99wxayx1yxqy.htm EX-99.(A)(1)(Q) 9147
4 EX-(A)(1)(R) FORM OF E-MAIL TO ELIGIBLE EMPLOYEES REGARDING INFORMATION SESSIONS b76921exv99wxayx1yxry.htm EX-99.(A)(1)(R) 11957
6 GRAPHIC b76921b76921z0013.gif GRAPHIC 136303
7 GRAPHIC b76921b76921z0014.gif GRAPHIC 74656
8 GRAPHIC b76921b76921z0015.gif GRAPHIC 48610
9 GRAPHIC b76921b76921z0016.gif GRAPHIC 67989
10 GRAPHIC b76921b76921z0017.gif GRAPHIC 56859
11 GRAPHIC b76921b76921z0018.gif GRAPHIC 69483
12 GRAPHIC b76921b76921z0019.gif GRAPHIC 78707
13 GRAPHIC b76921b76921z0020.gif GRAPHIC 75137
14 GRAPHIC b76921b76921z0021.gif GRAPHIC 61054
15 GRAPHIC b76921b76921z0022.gif GRAPHIC 45238
16 GRAPHIC b76921b76921z0023.gif GRAPHIC 53715
17 GRAPHIC b76921b76921z0024.gif GRAPHIC 49311
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19 GRAPHIC b76921b7692101.gif GRAPHIC 2426
20 GRAPHIC b76921b7692102.gif GRAPHIC 8473
21 filename21.htm CORRESP 7715
  Complete submission text file 0000950123-09-036869.txt   1579435
Mailing Address 2 TECH DRIVE SUITE 201 ANDOVER MA 01810
Business Address 2 TECH DRIVE SUITE 201 ANDOVER MA 01810 978-645-5500
MKS INSTRUMENTS INC (Filed by) CIK: 0001049502 (see all company filings)

IRS No.: 042277512 | State of Incorp.: MA | Fiscal Year End: 1231
Type: SC TO-I/A
SIC: 3823 Industrial Instruments For Measurement, Display, and Control

Mailing Address 2 TECH DRIVE SUITE 201 ANDOVER MA 01810
Business Address 2 TECH DRIVE SUITE 201 ANDOVER MA 01810 978-645-5500
MKS INSTRUMENTS INC (Subject) CIK: 0001049502 (see all company filings)

IRS No.: 042277512 | State of Incorp.: MA | Fiscal Year End: 1231
Type: SC TO-I/A | Act: 34 | File No.: 005-58011 | Film No.: 091026268
SIC: 3823 Industrial Instruments For Measurement, Display, and Control