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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1576263	Mirati Therapeutics Inc.	MRTX	Pharmaceutical Preparations (2834)	462693615

Insiders

Cik	Name	Reported Address	Director	Officer	Large Shareholder	Other
1015747	Joseph Lewis	C/O Cay House P.o. Box N-7776 E.p. Taylor Drive Lyford Cay New Providence C5	No	No	Yes	No
1465836	Boxer Asset Management Inc.	C/O Cay House P.o. Box N-7776 E.p. Taylor Drive Lyford Cay New Providence C5	No	No	Yes	No
1465837	Boxer Capital, Llc	440 Stevens Ave, Suite 100 Solana Beach CA 92075	No	No	Yes	No
1468223	Mva Investors, Llc	440 Stevens Ave, Suite 100 Solana Beach CA 92075	No	No	Yes	No
1603577	Ltd. Management Capital Berkley	C/O Cay House P.o. Box N-7776 E.p. Taylor Drive Lyford Cay New Providence C5	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	2015-09-16	22,500	$45.00	2,023,232	No	4	P	Direct
Common Stock	Acquisiton	2015-09-16	22,500	$45.00	522,500	No	4	P	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	P	Direct
No	4	P	Direct

Reported Derivative Transactions

Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Common Stock	Warrant (right to purchase)	Disposition	2015-09-17	1	$10,167,583.32	272,882	$6.74
Common Stock	Warrant (right to purchase)	Disposition	2015-09-17	1	$1,522,965.24	40,874	$6.74

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
0		2016-04-04	No	4	S	Direct
0		2016-04-04	No	4	S	Direct

Reported Non-Derivative Holdings

Sec. Name	Remaning Holdings	Nature of Ownership	Explanation
Common Stock	429,340	Direct

Footnotes

These securities are owned directly by Boxer Capital, LLC ("Boxer Capital"), which may be deemed to be a member of a "group" for purposes of Section 13(d) of the Securities Exchange Act of 1934, as amended, consisting of (i) Boxer Capital, (ii) Boxer Asset Management Inc. ("Boxer Management"), (iii) MVA Investors, LLC ("MVA Investors"), (iv) Berkley Capital Management Ltd. ("Berkley Capital"), and (v) Joe Lewis (collectively, the "Boxer Group"), and indirectly by Boxer Management and Joe Lewis, by virtue of their ownership in Boxer Capital.
These securities are owned directly by Berkley Capital, and indirectly by Joe Lewis. Joe Lewis is the sole indirect owner of and controls Berkley Capital.
These securities are owned directly and solely by MVA Investors, which has sole voting and dispositive power with respect to these securities. Each member of the Boxer Group other than MVA Investors disclaims beneficial ownership of these securities to the extent it or he does not have a pecuniary interest therein.
The warrants are not exercisable to the extent that, following exercise of such warrants, the warrant holder would hold more than 19.9% of the issuer's common stock.