Protagonist Therapeutics, Inc. (NASDAQ:PTGX) was the recipient of a large increase in short interest during the month of May. As of May 31st, there was short interest totalling 257,753 shares, an increase of 8.5% from the May 15th total of 237,623 shares. Based on an average trading volume of 347,545 shares, the days-to-cover ratio is currently 0.7 days.

A number of research analysts have issued reports on PTGX shares. Zacks Investment Research downgraded shares of Protagonist Therapeutics from a “hold” rating to a “sell” rating in a research report on Wednesday, April 12th. BMO Capital Markets upped their target price on shares of Protagonist Therapeutics from $34.00 to $45.00 and gave the company an “outperform” rating in a research note on Wednesday, May 31st.

Institutional investors have recently bought and sold shares of the company. Teachers Advisors LLC raised its position in Protagonist Therapeutics by 17.7% in the fourth quarter. Teachers Advisors LLC now owns 9,461 shares of the company’s stock valued at $208,000 after buying an additional 1,424 shares during the last quarter. Bank of New York Mellon Corp raised its stake in Protagonist Therapeutics by 15.1% in the first quarter. Bank of New York Mellon Corp now owns 26,148 shares of the company’s stock worth $335,000 after buying an additional 3,433 shares in the last quarter. Geode Capital Management LLC raised its stake in Protagonist Therapeutics by 1.9% in the first quarter. Geode Capital Management LLC now owns 101,218 shares of the company’s stock worth $1,296,000 after buying an additional 1,850 shares in the last quarter. State Street Corp raised its stake in Protagonist Therapeutics by 50.8% in the fourth quarter. State Street Corp now owns 92,163 shares of the company’s stock worth $2,028,000 after buying an additional 31,042 shares in the last quarter. Finally, Vanguard Group Inc. raised its stake in Protagonist Therapeutics by 1.1% in the first quarter. Vanguard Group Inc. now owns 313,514 shares of the company’s stock worth $4,016,000 after buying an additional 3,435 shares in the last quarter. 47.57% of the stock is currently owned by hedge funds and other institutional investors.

Shares of Protagonist Therapeutics (NASDAQ PTGX) opened at 10.55 on Monday. Protagonist Therapeutics has a one year low of $8.00 and a one year high of $26.36. The firm’s 50-day moving average is $10.32 and its 200-day moving average is $15.08. The stock’s market capitalization is $177.83 million.

Protagonist Therapeutics (NASDAQ:PTGX) last announced its quarterly earnings results on Wednesday, May 10th. The company reported ($0.84) EPS for the quarter, missing the Thomson Reuters’ consensus estimate of ($0.61) by $0.23.

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About Protagonist Therapeutics

Protagonist Therapeutics, Inc is a clinical-stage biopharmaceutical company with a peptide technology platform focused on discovering and developing new chemical entities (NECs) to address significant unmet medical needs. The Company’s product pipeline includes PTG-100, PTG-200 and PTG-300. Its primary focus is on developing oral peptide drugs that target biological pathways also targeted by marketed injectable antibody drugs.

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