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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1544116	Durata Therapeutics Inc.	DRTX	Pharmaceutical Preparations (2834)	871247903

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1354718	K Brian Halak	C/O Domain Associates, Llc One Palmer Square Princeton NJ 08542		No	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	2012-07-24	2,227,596	$0.00	2,227,596	No	4	C	Indirect	By Domain Partners VIII, L.P.
Common Stock	Acquisiton	2012-07-24	778,536	$9.00	3,006,132	No	4	P	Indirect	By Domain Partners VIII, L.P.
Common Stock	Acquisiton	2012-07-24	16,529	$0.00	16,529	No	4	C	Indirect	By DP VIII Associates, L.P.
Common Stock	Acquisiton	2012-07-24	5,777	$9.00	22,306	No	4	P	Indirect	By DP VIII Associates, L.P.

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	C	Indirect	By Domain Partners VIII, L.P.
No	4	P	Indirect	By Domain Partners VIII, L.P.
No	4	C	Indirect	By DP VIII Associates, L.P.
No	4	P	Indirect	By DP VIII Associates, L.P.

Reported Derivative Transactions

Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Common Stock	Series A Preferred Stock	Disposition	2012-07-24	2,227,596	$0.00	2,227,596	$0.00
Common Stock	Series A Preferred Stock	Disposition	2012-07-24	16,529	$0.00	16,529	$0.00

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
0			No	4	C	Indirect
0			No	4	C	Indirect

Footnotes

All outstanding shares of Series A preferred stock were automatically converted into Common Stock upon the closing of the Issuer's initial public offering (the "IPO"), for no additional consideration.
The Reporting Person also indirectly beneficially owns 6,250 shares of Common Stock held by Domain Associates, LLC. The Reporting Person is a Managing Member of (i) One Palmer Square Associates VIII, LLC, which is the sole general partner of Domain Partners VIII, L.P. and DP VIII Associates, L.P. and (ii) Domain Associates, LLC. Pursuant to Instruction (4)(b)(iv) of Form 4, the Reporting Person has elected to report as indirectly beneficially owned the entire number of securities beneficially owned by each such entity. The Reporting Person disclaims beneficial ownership of any securities, and any proceeds thereof, that exceed his or her pecuniary interest therein and/or that are not actually distributed to him or her.