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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1373707	Tetraphase Pharmaceuticals Inc	TTPH	Pharmaceutical Preparations (2834)	000000000

Insiders

Cik	Name	Reported Address	Director	Officer	Large Shareholder	Other
1222012	Noubar Afeyan	1 Memorial Drive, 7Th Floor Cambridge MA 02142	No	No	Yes	No
1255927	Jr M Edwin Kania	1 Memorial Drive, 7Th Floor Cambridge MA 02142	No	No	Yes	No
1299790	P L 2004 Fund Ventures Flagship	1 Memorial Drive, 7Th Floor Cambridge MA 02142	No	No	Yes	No
1400249	Flagship Ventures General Partner Llc	1 Memorial Drive, 7Th Floor Cambridge MA 02142	No	No	Yes	No
1508052	Flagship Ventures Fund 2007, L.p.	1 Memorial Drive, 7Th Floor Cambridge MA 02142	No	No	Yes	No
1508053	Flagship Ventures 2007 General Partner Llc	1 Memorial Drive, 7Th Floor Cambridge MA 02142	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
Common Stock	Acquisiton	2013-03-25	72,068	$0.00	72,068	No	4	C	Direct
Common Stock	Acquisiton	2013-03-25	94,003	$0.00	166,071	No	4	C	Direct
Common Stock	Acquisiton	2013-03-25	393,863	$0.00	559,934	No	4	C	Direct
Common Stock	Acquisiton	2013-03-25	331,953	$0.00	891,887	No	4	C	Direct
Common Stock	Acquisiton	2013-03-25	673,962	$0.00	673,962	No	4	C	Direct
Common Stock	Acquisiton	2013-03-25	491,824	$7.00	1,165,786	No	4	P	Direct

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

Reported Derivative Transactions

Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Common Stock	Series A-1 Convertible Participating Preferred Stock	Disposition	2013-03-25	2,090,000	$0.00	72,068	$0.00
Common Stock	Series A-2 Convertible Participating Preferred Stock	Disposition	2013-03-25	2,726,088	$0.00	94,003	$0.00
Common Stock	Series B Convertible Participating Preferred Stock	Disposition	2013-03-25	11,422,045	$0.00	393,863	$0.00
Common Stock	Series C Convertible Participating Preferred Stock	Disposition	2013-03-25	9,626,604	$0.00	331,953	$0.00
Common Stock	Series C Convertible Participating Preferred Stock	Disposition	2013-03-25	19,544,924	$0.00	673,962	$0.00

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

Footnotes

The Series A-1, Series A-2, Series B and Series C Convertible Preferred Stock converted into Common Stock on a 1-for-29 basis upon the closing of the issuer's initial public offering without payment of consideration.
Held by Flagship Ventures Fund 2004, L.P. ("Flagship 2004"). Flagship Ventures General Partner LLC ("Flagship LLC") is the general partner of Flagship Ventures Fund 2004, L.P. Noubar B. Afeyan Ph.D. and Edwin M. Kania, Jr. are the managers of Flagship LLC. Flagship LLC and each of these individuals may be deemed to share voting and investment power with respect to all shares held by Flagship 2004. Each of the filing persons disclaims beneficial ownership of the shares except to the extent of any pecuniary interest therein.
Held by Flagship Ventures Fund 2007, L.P. ("Flagship 2007"). Flagship Ventures 2007 General Partner, LLC ("Flagship 2007 LLC") is the general partner of Flagship 2007. Noubar B. Afeyan Ph.D. and Edwin M. Kania, Jr. are the managers of Flagship 2007 LLC. Flagship 2007 LLC and each of these individuals may be deemed to share voting and investment power with respect to all shares held by Flagship 2007. Each of the filing persons disclaims beneficial ownership of the shares except to the extent of any pecuniary interest therein.
Not Applicable.