BIOMARIN PHARMACEUTICAL INC — Director's Dealing 2011

May 12, 2011

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: BIOMARIN PHARMACEUTICAL INC (BMRN)
CIK: 0001048477
Period of Report: 2011-05-12

Reporting Person: Mueller Brian (VP, Corporate Controller)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2011-04-29	Common Stock	A	1501	$11.6365	Acquired	2613	Direct
2011-05-12	Common Stock	M	812	—	Acquired	3425	Direct
2011-05-12	Common Stock	M	750	—	Acquired	4175	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2011-05-12	Restricted Stock Units	$0	M	812	Acquired		Common Stock (812)	Direct
2011-05-12	Restricted Stock Units	$0	M	750	Acquired		Common Stock (750)	Direct

Footnotes

F1: The reporting person is voluntarily reporting the acquisition of shares of the issuer's common stock pursuant to the issuer's Employee Stock Purchase Plan ("ESPP"), for the ESPP purchase period of November 1, 2010 to April 29, 2011.

F2: Represents restricted stock units which automatically converted to common stock upon the vesting of such units on a one-to-one basis, pursuant to restricted stock units granted May 12, 2009.

F3: Represents restricted stock units which automatically converted to common stock upon the vesting of such units on a one-to-one basis, pursuant to restricted stock units granted May 12, 2010.

F4: Original grant of restricted stock units vest 1/4th each on May 12, 2010, May 12, 2011, May 12, 2012, and May 12, 2013.

F5: Original grant of restricted stock units vest 1/4th each on May 12, 2011, May 12, 2012, May 12, 2013, and May 12, 2014.