David Johnson

AMAG Pharmaceuticals, Inc. is a biopharmaceutical company, which engages in the manufacture, development, and commercialization of a therapeutic iron compound to treat iron deficiency anemia. Its products include Makena and Feraheme. It focuses on the development and commercialization of Feraheme injection for intravenous use to treat iron deficiency anemia. It also manufactures, develops, and commercializes products derived from its proprietary technology for use in treating human diseases. The company was founded on November 9, 1981 and is headquartered in Waltham, MA.

Children's Scholarship Fund, Inc. operates as a non-profit organization that provides partial tuition assistance for low-income families to send their children to private schools. It offers scholarships for children grades Kindergarten - 8th grade. The firm focuses on elementary education. The company was founded by Theodore J. Forstmann and John T. Walton in 1998 and is headquartered in New York, NY.

Caligan Partners LP is an independent, SEC-registered investment advisor and hedge fund manager headquartered in New York City. The firm was founded by David Johnson and Samuel Merksamer in 2017 to invest in activist equity situations and distressed debt for a variety of private client funds and separately managed accounts.

Morgan Stanley & Co. LLC is a registered broker-dealer subsidiary of Morgan Stanley Domestic Holdings, Inc., ultimately owned by Morgan Stanley (NYSE: MS) in the US. Headquartered in New York City, the firm was founded in 1987 and provides debt and equity services including underwriting, M&A advice, securities dealing and brokerage and trade execution. Their client base ranges from large global institutional investors to hedge funds at the cutting edge of innovation in the industry.

The Carlyle Group LP (Global Credit) (Carlyle Group), subsidiary of The Carlyle Group Inc. is a private equity firm founded in 1987 by William E. Conway Jr., Daniel A. D'Aniello and David M. Rubenstein. The firm is headquartered in Washington, DC with offices in North America, South America, Europe, the Middle East, Africa, Asia and Australia.