MAXYGEN INC

Q: Jun 30 2013

Q: Mar 31 2013

FY: Dec 31 2012

FY: Dec 31 2012

Q: Sep 30 2012

Q: Jun 30 2012

Q: Mar 31 2012

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

3.01,3.03,5.02,8.01,9.01

3.01,3.03,5.02,5.07,8.01,9.01

2.02,9.01

5.02,8.01,9.01

2.02,9.01

2.02,9.01

8.01

2.02,9.01

Results of Operations and Financial Condition

5.07

8.01,9.01

2.02,9.01

Results of Operations and Financial Condition

8.01

Other Events

2.02,9.01

8.01,9.01

2.02,9.01

Submission of Matters to a Vote of Security Holders

Entry into a Material Definitive Agreement

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

Notice of Effectiveness

Notice of Effectiveness

Notice of Effectiveness

Notice of Effectiveness

Post-effective amendment to a registration statement

Post-effective amendment to a registration statement

Post-effective amendment to a registration statement

Post-effective amendment to a registration statement

Post Effective Amendment to S-8

Post Effective Amendment to S-8

Post Effective Amendment to S-8

Post Effective Amendment to S-8

Post Effective Amendment to S-8

Post Effective Amendment to S-8

Post Effective Amendment to S-8

Post Effective Amendment to S-8

Post Effective Amendment to S-8

Post Effective Amendment to S-8

Post Effective Amendment to S-8

Definitive Proxy Statement

Additional Information for Proxy Statement/ Votes

Preliminary Proxy Statement

Additional Information for Proxy Statement/ Votes

Additional Information for Proxy Statement/ Votes

Definitive Proxy Statement

Additional Information for Proxy Statement/ Votes

Definitive Proxy Statement

Definitive Proxy Statement

No description available

No description available

Additional Information for Proxy Statement/ Votes

Additional Information for Proxy Statement/ Votes

Additional Information for Proxy Statement/ Votes

Definitive Proxy Statement

Definitive Proxy Statement

Definitive Proxy Statement

Definitive Proxy Statement

Definitive Proxy Statement

Definitive Proxy Statement

DIMENSIONAL FUND ADVISORS LP

none

BlackRock Inc.

none

none

Borkholder John

none

SULAT JAMES R

Borkholder John

Borkholder John

Alistair Capital Management, L.L.C.

DIMENSIONAL FUND ADVISORS LP

BlackRock Inc.

BlackRock Inc.

HOWARD RUSSELL J

STEIN ISAAC

SULAT JAMES R

Borkholder John

BlackRock Inc.

Borkholder John

No description available

No description available

No description available

No description available

Annual Report Scanned (Paper)

Annual Report Scanned (Paper)

Letter from the SEC

Correspondence with the SEC

Letter from the SEC

Correspondence with the SEC

Letter from the SEC

Annual Report Scanned (Paper)

Annual Report Scanned (Paper)

Letter from the SEC

Correspondence with the SEC

Correspondence with the SEC

Letter from the SEC

No description available

No description available

No description available