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MKS INC — Director's Dealing 2010
May 19, 2010
30723_dirs_2010-05-19_5435c9c0-d43f-49c8-838f-0d9f81bb70d6.zip
Director's Dealing
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SEC Form 4 — Statement of Changes in Beneficial Ownership
Issuer: MKS INSTRUMENTS INC (MKSI)
CIK: 0001049502
Period of Report: 2010-05-17
Reporting Person: CHUTE RICHARD S (Director)
Derivative Transactions
| Date | Security | Exercise Price | Code | Shares | A/D | Expiration | Underlying | Ownership |
|---|---|---|---|---|---|---|---|---|
| 2010-05-17 | Director Stock Option (Right to Buy) | $44.88 | E | 6000 | Disposed | 2010-05-17 | Common Stock (6000) | Direct |
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