Tetraphase Pharmaceuticals, Inc. (NASDAQ:TTPH)‘s stock had its “hold” rating reaffirmed by analysts at Needham & Company LLC in a report released on Thursday.

Several other analysts have also commented on TTPH. BMO Capital Markets reissued an “outperform” rating and set a $13.00 price target (up from $12.00) on shares of Tetraphase Pharmaceuticals in a research report on Wednesday. Stifel Nicolaus raised shares of Tetraphase Pharmaceuticals from a “hold” rating to a “buy” rating and increased their price target for the company from $8.00 to $15.00 in a research report on Wednesday. HC Wainwright assumed coverage on shares of Tetraphase Pharmaceuticals in a research report on Tuesday, July 11th. They set a “buy” rating and a $15.00 price target for the company. Finally, Zacks Investment Research lowered shares of Tetraphase Pharmaceuticals from a “hold” rating to a “sell” rating in a research report on Wednesday, May 10th. Three investment analysts have rated the stock with a hold rating and three have assigned a buy rating to the stock. Tetraphase Pharmaceuticals currently has an average rating of “Buy” and a consensus target price of $10.25.

Shares of Tetraphase Pharmaceuticals (NASDAQ:TTPH) traded down 11.68% on Thursday, reaching $6.96. 3,874,885 shares of the company were exchanged. The company’s market capitalization is $264.17 million. The company’s 50-day moving average is $7.48 and its 200-day moving average is $6.84. Tetraphase Pharmaceuticals has a 52 week low of $3.11 and a 52 week high of $9.93.

Tetraphase Pharmaceuticals (NASDAQ:TTPH) last released its quarterly earnings results on Tuesday, May 2nd. The biopharmaceutical company reported ($0.79) EPS for the quarter, missing the Thomson Reuters’ consensus estimate of ($0.60) by $0.19. The firm had revenue of $1.48 million for the quarter, compared to analysts’ expectations of $1.46 million. Tetraphase Pharmaceuticals had a negative net margin of 1,932.24% and a negative return on equity of 60.55%. The business’s quarterly revenue was down 24.5% compared to the same quarter last year. During the same period in the previous year, the company posted ($0.46) earnings per share. On average, equities analysts expect that Tetraphase Pharmaceuticals will post ($2.66) EPS for the current fiscal year.

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A number of institutional investors have recently modified their holdings of TTPH. Vanguard Group Inc. increased its position in shares of Tetraphase Pharmaceuticals by 16.4% in the first quarter. Vanguard Group Inc. now owns 1,638,789 shares of the biopharmaceutical company’s stock valued at $15,061,000 after buying an additional 230,420 shares during the period. Tekla Capital Management LLC increased its position in shares of Tetraphase Pharmaceuticals by 422.2% in the first quarter. Tekla Capital Management LLC now owns 1,004,322 shares of the biopharmaceutical company’s stock valued at $9,230,000 after buying an additional 812,000 shares during the period. State Street Corp boosted its stake in shares of Tetraphase Pharmaceuticals by 1.6% in the fourth quarter. State Street Corp now owns 710,982 shares of the biopharmaceutical company’s stock worth $2,864,000 after buying an additional 11,391 shares during the last quarter. Dimensional Fund Advisors LP boosted its stake in shares of Tetraphase Pharmaceuticals by 180.4% in the first quarter. Dimensional Fund Advisors LP now owns 634,300 shares of the biopharmaceutical company’s stock worth $5,829,000 after buying an additional 408,078 shares during the last quarter. Finally, Acadian Asset Management LLC boosted its stake in shares of Tetraphase Pharmaceuticals by 108.2% in the first quarter. Acadian Asset Management LLC now owns 379,049 shares of the biopharmaceutical company’s stock worth $3,482,000 after buying an additional 197,022 shares during the last quarter. Institutional investors own 46.24% of the company’s stock.

About Tetraphase Pharmaceuticals

Tetraphase Pharmaceuticals, Inc is a clinical-stage biopharmaceutical company. The Company uses its chemistry technology to create antibiotics for multidrug-resistant infections. The Company is developing its lead product candidate, eravacycline, a fully synthetic tetracycline derivative, as a spectrum intravenous (IV) and oral antibiotic for use as a first-line empiric monotherapy for the treatment of multidrug-resistant infections, including multidrug-resistant gram-negative infections.

Analyst Recommendations for Tetraphase Pharmaceuticals (NASDAQ:TTPH)

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