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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1159036	Halozyme Therapeutics Inc	HALO	Biological Products, (No Disgnostic Substances) (2836)	880488686

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1091823	J Randal Kirk	C/O Third Security, Llc 1881 Grove Avenue Radford VA 24141		Yes	No	Yes	No

Reported Non-Derivative Transactions

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Common Stock	Acquisiton	2012-02-10	990,000	$10.61	2,905,947	No	4	P	Indirect	by Kapital Joe
Common Stock	Acquisiton	2012-02-10	185,000	$10.61	234,300	No	4	P	Indirect	by JPK 2009
Common Stock	Acquisiton	2012-02-10	185,000	$10.61	234,300	No	4	P	Indirect	by MGK 2009

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	P	Indirect	by Kapital Joe
No	4	P	Indirect	by JPK 2009
No	4	P	Indirect	by MGK 2009

Reported Non-Derivative Holdings

Sec. Name	Remaning Holdings	Nature of Ownership	Explanation
Common Stock	1,722,965	Indirect	by R.J. Kirk DOT
Common Stock	293,000	Indirect	by JPK 2008
Common Stock	293,000	Indirect	by MGK 2008
Common Stock	293,000	Indirect	by ZSK 2008
Common Stock	10,945	Indirect	by Lotus Capital
Common Stock	1,436,186	Indirect	by Kirkfield
Common Stock	135,000	Indirect	by Staff 2001
Common Stock	1,326,320	Indirect	by NRM IV
Common Stock	6,328,853	Indirect	by NRM V
Common Stock	3,430,000	Direct

Footnotes

Randal J. Kirk controls each of Kapital Joe, LLC ("Kapital Joe"), JPK 2009, LLC ("JPK 2009"), MGK 2009, LLC ("MGK 2009"), R.J. Kirk Declaration of Trust ("R.J. Kirk DOT"), JPK 2008, LLC ("JPK 2008"), MGK 2008, LLC ("MGK 2008"), ZSK 2008, LLC ("ZSK 2008"), Lotus Capital (2000) Company, Inc. ("Lotus Capital"), Kirkfield, L.L.C. ("Kirkfield"), Third Security Staff 2001 LLC ("Staff 2001"), New River Management IV, LP ("NRM IV") and New River Management V, LP ("NRM V"). Shares held by these entities may be deemed to be indirectly beneficially owned (as defined under Rule 13d-3 promulgated under the Securities Exchange Act of 1934, as amended) by Mr. Kirk. Mr. Kirk disclaims beneficial ownership of such shares, except to the extent of any pecuniary interest therein.