Data Domain, Inc.

Q: Mar 31 2009

FY: Dec 31 2008

FY: Dec 31 2008

Q: Sep 30 2008

Q: Jun 30 2008

Q: Mar 31 2008

FY: Dec 31 2007

Q: Sep 30 2007

Q: Jun 30 2007

3.01,5.03,9.01

5.01,5.02,9.01

1.01,1.02,8.01,9.01

8.01,9.01

8.01,9.01

Entry into a Material Definitive Agreement

1.01,8.01,9.01

2.02,9.01

5.02,9.01

2.02,9.01

5.02

2.02,9.01

2.02,9.01

2.02,9.01

Departure of Directors or Principal Officers; Election of Directors; Appointment of Principal Officers

Departure of Directors or Principal Officers; Election of Directors; Appointment of Principal Officers

Results of Operations and Financial Condition

1.01,2.03,9.01

1.01,9.01

Results of Operations and Financial Condition

Post Effective Amendment to S-8

Post Effective Amendment to S-8

Post Effective Amendment to S-8

Post Effective Amendment to S-8

Notification of removal from listing and/or registration on a national securities exchange

Certification of termination of registration of a class of securities (Section 12(b))

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

No description available

No description available

Definitive Proxy Statement

Additional Information for Proxy Statement/ Votes

Definitive Proxy Statement

MASON CAPITAL MANAGEMENT LLC

Greylock XI GP Limited Partnership

Scarpelli Michael

HUNDT REED E

BHUSRI ANEEL

BERNAL RONALD D

CODD RONALD E F

Miller Jeffrey Alan

Slootman Frank

Li Kai

Schneider David

McGee Daniel

Bacica Nick

NEW ENTERPRISE ASSOCIATES 10 L P

SANDELL SCOTT D

EMC CORP

EMC CORP

Data Domain, Inc.

EMC CORP

SANDELL SCOTT D

Letter from the SEC

Letter from the SEC

Correspondence with the SEC

Letter from the SEC

Correspondence with the SEC

Correspondence with the SEC

Letter from the SEC

Letter from the SEC

No description available

Correspondence with the SEC

Correspondence with the SEC

Letter from the SEC