Hedge Fund and Insider Trading News: David Einhorn, Marshall Wace LLP, Ra Pharmaceuticals Inc (RARX), PLx Pharma Inc (PLXP), Opko Health Inc. (OPK), and More

Einhorn’s Greenlight Extends Decline to 34% in Worst Year (Bloomberg)
David Einhorn closed out 2018 with his biggest annual loss ever for the 22-year-old Greenlight Capital. The firm’s main hedge fund fell 9 percent in December, extending this year’s decline to 34 percent, according to an investor update viewed by Bloomberg. Greenlight posted some of the industry’s best returns in its early years, but has stumbled since losing more than 20 percent in 2015.

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Marshall Wace LLP Has $2.62 Million Holdings in Mazor Robotics Ltd – (MZOR) (FairFieldCurrent.com)
Marshall Wace LLP increased its position in shares of Mazor Robotics Ltd – (NASDAQ:MZOR) by 939.2% during the 3rd quarter, according to the company in its most recent 13F filing with the SEC. The firm owned 44,843 shares of the medical instruments supplier’s stock after buying an additional 40,528 shares during the quarter. Marshall Wace LLP owned about 0.17% of Mazor Robotics worth $2,615,000 at the end of the most recent reporting period.

The Money Managers to Watch in 2019 (The Wall Street Journal)
Hedge-fund managers once again lagged the broader market and will have to show they are worth their high fees. Those that don’t deliver this year might have to make difficult decisions. These are four leaders to watch.

Insider Buying: Opko Health Inc. (OPK) CEO Purchases 100,000 Shares of Stock (ModernReaders.com)
Opko Health Inc. (NASDAQ:OPK) CEO Phillip Md Et Al Frost purchased 100,000 shares of the stock in a transaction dated Saturday, December 28th. The shares were bought at an average price of $3.13 per share, for a total transaction of $313,000.00. Following the completion of the acquisition, the chief executive officer now owns 3,068,951 shares in the company, valued at $9,605,816.63. The purchase was disclosed in a legal filing with the SEC.

Insider Buying: Ra Pharmaceuticals Inc (NASDAQ:RARX) Major Shareholder Purchases 645,161 Shares of Stock (BaseballDailyDigest.com)
Ra Pharmaceuticals Inc (NASDAQ:RARX) major shareholder Enterprise Associates 13 L. New purchased 645,161 shares of the business’s stock in a transaction on Friday, December 14th. The stock was acquired at an average price of $15.50 per share, for a total transaction of $9,999,995.50. The acquisition was disclosed in a filing with the Securities & Exchange Commission.

Insider Selling: Square, Inc. (SQ) Director Sells 400,000 Shares of Stock (PressOracle.com)
Square, Inc. (NYSE:SQ) Director James Morgan Jr. Mckelvey sold 400,000 shares of the firm’s stock in a transaction that occurred on Wednesday, December 12th. The shares were sold at an average price of $64.60, for a total value of $25,840,000.00. Following the completion of the sale, the director now directly owns 472,275 shares of the company’s stock, valued at $30,508,965. The transaction was disclosed in a document filed with the SEC.

Insider Buying: PLx Pharma Inc (PLXP) Major Shareholder Acquires 397,495 Shares of Stock (MareaInformativa.com)
PLx Pharma Inc (NASDAQ:PLXP) major shareholder Park West Asset Management Llc purchased 397,495 shares of the firm’s stock in a transaction on Thursday, December 27th. The shares were purchased at an average cost of $1.00 per share, with a total value of $397,495.00. The purchase was disclosed in a legal filing with the Securities & Exchange Commission.

Insider Buying: Meet Group Inc (MEET) Major Shareholder Purchases 104,504 Shares of Stock (ModernReaders.com)
Meet Group Inc (NASDAQ:MEET) major shareholder Luxor Capital Group, Lp bought 104,504 shares of Meet Group stock in a transaction on Friday, December 27th. The stock was acquired at an average price of $4.22 per share, for a total transaction of $441,006.88. The purchase was disclosed in a filing with the SEC, which is available through the SEC website. Large shareholders that own at least 10% of a company’s shares are required to disclose their transactions with the SEC.

Alcentra Capital Corp (ABDC) Insider Purchases $257,520.00 in Stock (PressOracle.com)
Alcentra Capital Corp (NASDAQ:ABDC) insider Suhail A. Shaikh purchased 37,000 shares of the company’s stock in a transaction on Wednesday, December 12th. The shares were bought at an average cost of $6.96 per share, with a total value of $257,520.00. Following the transaction, the insider now directly owns 34,476 shares of the company’s stock, valued at approximately $239,952.96. The acquisition was disclosed in a filing with the SEC.