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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	Director	Officer	Large Shareholder	Other
1192212	O. Philippe Chambon	C/O New Leaf Ventures Times Square Tower, 7 Times Square, Ste New York NY 10036	No	No	Yes	No
1231092	James Niedel	C/O New Leaf Ventures Times Square Tower, 7 Times Square, Ste New York NY 10036	No	No	Yes	No
1253170	Srinivas Akkaraju	C/O New Leaf Ventures 2500 Sand Hill Road, Suite 203 Menlo Park CA 94025	No	No	Yes	No
1340806	K Vijay Lathi	C/O New Leaf Ventures 2500 Sand Hill Road, Suite 203 Menlo Park CA 94025	No	No	Yes	No
1441439	New Leaf Ventures Ii, L.p.	C/O New Leaf Ventures Times Square Tower, 7 Times Sq, Ste 3502 New York NY 10036	No	No	Yes	No
1441563	Jeani Delagardelle	C/O New Leaf Ventures 2500 Sand Hill Road, Suite 203 Menlo Park CA 94025	No	No	Yes	No
1441857	New Leaf Venture Management Ii, L.l.c.	C/O New Leaf Ventures Times Square Tower, 7 Times Square, Ste New York NY 10036	No	No	Yes	No
1441858	New Leaf Venture Associates Ii, L.p.	C/O New Leaf Ventures Times Square Tower, 7 Times Square, Ste New York NY 10036	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	2,244,126	$0.00	2,244,126	No	4	C	Indirect	See Footnote
Common Stock	Acquisiton	2012-07-24	784,313	$9.00	3,028,439	No	4	P	Indirect	See Footnote

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	C	Indirect	See Footnote
No	4	P	Indirect	See Footnote

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	17,953,008	$0.00	2,244,126	$0.00

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
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, for no additional consideration.
The securities are directly held by New Leaf Ventures II, L.P. ("NLV II") and indirectly held by New Leaf Venture Associates II, L.P. ("NLV Associates II"), the sole general partner of NLV II, New Leaf Venture Management II, L.L.C. ("NLV Management II"), the sole general partner of NLV Associates II, and the individual managers of NLV Management II (NLV Associates II, NLV Management II and the individual managers of NLV Management II each, an "Indirect Reporting Person"). The individual managers of NLV Management II filing jointly with NLV II, NLV Associates II and NLV Management II are Philippe O. Chambon, James Niedel, Vijay Lathi, Jeani Delagardelle and Srinivas Akkaraju. Each Indirect Reporting Person disclaims beneficial ownership of such portion of the NLV II shares in which such Indirect Reporting Person has no actual pecuniary interest therein.