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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1496671	Calithera Biosciences Inc.	CALA	Pharmaceutical Preparations (2834)	272366329

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1316252	E Ralph Christoffersen	2710 Sand Hill Road, Suite 100 Menlo Park CA 94025		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	2014-10-07	1,811,915	$0.00	1,811,915	No	4	C	Indirect	By Partnership
Common Stock	Acquisiton	2014-10-07	350,000	$10.00	2,161,915	No	4	P	Indirect	By Partnership

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	C	Indirect	By Partnership
No	4	P	Indirect	By Partnership

Reported Derivative Transactions

Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Common Stock	SERIES A PREFERRED STOCK	Acquisiton	2014-10-07	10,999	$0.00	10,999	$0.00
Common Stock	SERIES B PREFERRED STOCK	Acquisiton	2014-10-07	419,181	$0.00	419,181	$0.00
Common Stock	SERIES C PREFERRED STOCK	Acquisiton	2014-10-07	747,540	$0.00	747,540	$0.00
Common Stock	SERIES D PREFERRED STOCK	Acquisiton	2014-10-07	634,195	$0.00	634,195	$0.00

Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
No	4	C	Indirect
No	4	C	Indirect
No	4	C	Indirect
No	4	C	Indirect

Footnotes

The Series A Preferred Stock, Series B Preferred Stock, Series C Preferred Stock and Series D Preferred Stock automatically converted into Common Stock on a one-for-one basis immediately upon consummation of Issuer's initial public offering of Common Stock and had no expiration date.
The securities are held by Morgenthaler Venture Partners IX, L.P. (MVP IX). The managing partner of MVP IX is Morgenthaler Management Partners IX, LLC (MMP IX). Ralph E. Christoffersen, a director of the Issuer is a Member of MMP IX. As such, the Reporting Person shares voting and investment power over the securities held by MMP IX. The Reporting Person disclaims beneficial ownership of the securities held by MMP IX except to the extent of his pecuniary interest therein.