ERESEARCHTECHNOLOGY INC /DE/

Q: Mar 31 2012

FY: Dec 31 2011

FY: Dec 31 2011

Q: Sep 30 2011

Q: Jun 30 2011

Q: Mar 31 2011

FY: Dec 31 2010

Q: Sep 30 2010

Q: Jun 30 2010

Q: Mar 31 2010

FY: Dec 31 2009

Q: Sep 30 2009

Q: Jun 30 2009

Q: Mar 31 2009

FY: Dec 31 2008

Q: Sep 30 2008

Q: Jun 30 2008

Q: Mar 31 2008

FY: Dec 31 2007

Q: Sep 30 2007

1.01,1.02,2.01,2.03,5.01,5.02,5.03,8.01,9.01

3.01,3.03

5.07,8.01,9.01

8.01

2.02,9.01

Entry into a Material Definitive Agreement

1.01,5.02,8.01,9.01

5.02

2.02,9.01

1.01,2.03,5.02

2.02,9.01

Results of Operations and Financial Condition

Results of Operations and Financial Condition

5.02,9.01

Results of Operations and Financial Condition

5.02,9.01

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers

8.01,9.01

Results of Operations and Financial Condition

5.02,9.01

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

Notice of Effectiveness

Notice of Effectiveness

Post Effective Amendment to S-8

Post Effective Amendment to S-8

Post Effective Amendment to S-8

Post-effective amendment to a registration statement

Post Effective Amendment to S-8

Post-effective amendment to a registration statement

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

Post Effective Amendment to S-8

Post Effective Amendment to S-8

Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans

Prospectus Supplement for Primary Offering

Notice of Effectiveness

Registration statement under Securities Act of 1933

Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans

Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans

Prospectus Supplement for Primary Offering

Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans

No description available

No description available

Additional Information for Proxy Statement/ Votes

Definitive Proxy Statement

Definitive Proxy Statement

Definitive Proxy Statement

Definitive Proxy Statement

Additional Information for Proxy Statement/ Votes

Definitive Proxy Statement

Definitive Proxy Statement

Preliminary Proxy Statement

Definitive Proxy Statement

Definitive Proxy Statement

Preliminary Proxy Statement

Definitive Proxy Statement

Preliminary Proxy Statement

Definitive Proxy Statement

Definitive Proxy Statement

Preliminary Proxy Statement

Definitive Proxy Statement

VANGUARD GROUP INC

TOCQUEVILLE ASSET MANAGEMENT L.P.

COLUMBIA WANGER ASSET MANAGEMENT LLC

DEVINE THOMAS P

Scheppmann Stephen Mark

SCHNECK KEITH D

PHILLIPS STEPHENS S

MORGANROTH JOEL M D

HITCHNER ELAM M III

FAICH GERALD A

Besier Klaus P

LITWIN JEFFREY S

Schuelke Achim

FURLONG AMY

FMR LLC

BLUM CAPITAL PARTNERS LP

Blakeley John

Schuelke Achim

FURLONG AMY

DEVINE THOMAS P

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

Correspondence with the SEC

Letter from the SEC

Correspondence with the SEC

Correspondence with the SEC

Letter from the SEC

Letter from the SEC

Correspondence with the SEC

Letter from the SEC