Magnetar announces acquisition of common shares of Mainstreet Health Investments Inc.

TORONTO, Dec. 20, 2017 /CNW/ - Magnetar Financial LLC ("Magnetar") today announced that Magnetar Constellation Master Fund, Ltd, Magnetar Xing He Master Fund Ltd, Magnetar Andromeda Select Master Fund Ltd, Magnetar Constellation Master Fund V Ltd and Magnetar Constellation Fund II, Ltd (collectively, the "Magnetar Funds") have acquired on the date hereof an aggregate amount of 1,555,279 common shares ("Common Shares") of Mainstreet Health Investments Inc. ("Mainstreet"), representing approximately 4.81% of the issued and outstanding Common Shares, at a price of US$8.15 per Common Share (representing approximately C$10.47), for an aggregate consideration of $12,675,523.85 (representing approximately C$16,277,907.73).

Prior to the acquisition of the Common Shares, Magnetar, together with the Magnetar Funds and other Magnetar funds in respect of which Magnetar Financial LLC is the investment manager, owned and had control over an aggregate of 11,635,104 Common Shares, representing approximately 35.97% of the outstanding Common Shares. As a result of the acquisition of Common Shares completed on the date hereof, Magnetar, together with the Magnetar Funds and other Magnetar funds in respect of which Magnetar Financial LLC is the investment manager, owns and has control over, an aggregate of 13,190,383 Common Shares, representing approximately 40.78% of the outstanding Common Shares.

The Common Shares were acquired by way of private share purchase agreements from fewer than five sellers in accordance with the exemption from the formal take-over bid requirements in Section 4.2 of National Instrument 62-104 – Take-Over Bids and Issuer Bids.

The Common Shares were acquired for investment purposes, and in the future, Magnetar and the Magnetar Funds may discuss with management and/or the board of directors of Mainstreet business transactions and other opportunities and may further purchase, hold, vote, trade, dispose or otherwise deal in the securities of Mainstreet, in such manner as they deem advisable, depending on market and other conditions.

An early warning report will be filed by Magnetar in accordance with applicable securities laws and will be available on SEDAR at www.sedar.com or may be obtained directly from Magnetar upon request at the telephone number below. Mainstreet's registered office is located at 700 W Georgia Street, 25^th Floor, Vancouver, British Columbia V7Y 1B3 and its head office is located at 333 Bay Street, Suite 3400, Toronto, Ontario, M5H 2S7. The address of each of the Magnetar Funds is c/o Magnetar Financial LLC, 1603 Orrington Avenue, Suite 1300, Evanston IL 60201 USA.

SOURCE Magnetar Financial LLC

Michael Shore, 847-905-4400, [email protected]