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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
1598640	Jacques Dumas	C/O Tetraphase Pharmaceuticals, Inc. 480 Arsenal Street Watertown MA 02472	Chief Scientificofficer	No	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	Disposition	2018-01-09	7,167	$6.21	0	No	4	S	Direct

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

Footnotes

On January 6, 2016, the Reporting person was granted 35,000 restricted stock units ("RSUs")( the "2016 RSU grant") that were previously reported on Table II Of Form 4, which form was filed with the Securities and Exchange Commission on June 10, 2016. Of the 2016 RSU grant, 11,667 shares vested on January 6, 2018 of which 4,500 shares were withheld by the Issuer to satisfy the reporting person's tax withholding obligations in connection with the delivery of the conversion of the RSUs into common stock on the vesting date. The remaining 7,167 shares were sold on January 9, 2018 and such sale is reported on this Form 4.
The sale of these shares of common stock reported on this Form 4 was effected pursuant to a 10b5-1 trading plan adopted by the reporting person on June 16, 2017.
The price reported represents the weighted average sales price of shares sold in multiple transactions at prices ranging from $6.14 to $6.31 per share. The reporting person undertakes to provide, upon request, to the staff of the Securities and Exchange Commission, the Issuer, or a security holder of the Issuer, full information regarding the number of shares sold at each separate price.