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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	Insider Title	Director	Officer	Large Shareholder	Other
1296998	Guy Macdonald	480 Arsenal St. Suite 110 Watertown MA 02472	President And Chief Executive	Yes	Yes	No	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	2015-05-11	20,000	$7.94	90,537	No	4	M	Direct
Common Stock	Disposition	2015-05-11	20,000	$41.51	70,537	No	4	S	Direct

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

Reported Derivative Transactions

Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Common Stock	Employee Stock Option (right to buy)	Disposition	2015-05-11	20,000	$0.00	20,000	$7.94

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
220,000		2023-05-14	No	4	M	Direct

Footnotes

The exercise and sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 25, 2014.
The price reported represents the weighted average sales price of shares sold in multiple transactions at prices ranging from $40.51 to $42.61 per share. The reporting person herby undertakes, upon request of the staff of the U.S. Securities and Exchange Commission,the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.
Vests as to 25% of the original number of shares granted on 5/15/2013 and further vests as to an additional 6.25% of the original number of shares granted at the end of each successive three-month period thereafter until 5/15/2017.