OvaScience Announces Proposed Public Offering of Common Stock

OvaScienceSM (NASDAQ: OVAS), a global fertility company focused on the discovery, development and commercialization of new treatment options, announced today that it has commenced an underwritten public offering of shares of its common stock. OvaScience intends to grant the underwriters a 30-day option to purchase additional shares of the common stock to cover over-allotments, if any. All of the shares in the offering will be sold by OvaScience.

Leerink Partners LLC is acting as the sole book-running manager of the offering and H.C. Wainwright & Co. is acting as a co-manager of the offering. The offering is subject to market and other conditions and there can be no assurances as to whether or when the offering may be completed, or as to the actual size or terms of the offering.

OvaScience intends to use the net proceeds from this offering to fund the commercial expansion of the AUGMENTSM treatment in our key regions, Japan and Canada, the ongoing pre-commercial activities for the OvaPrimeSM treatment and the OvaTureSM treatment, and working capital and other general corporate purposes.

The public offering will be made pursuant to a shelf registration statement on Form S-3 that was previously filed with and declared effective by the Securities and Exchange Commission (“SEC”). A preliminary prospectus supplement and accompanying base prospectus relating to and describing the terms of the offering has been filed with the SEC. The offering is being made only by means of a prospectus and related prospectus supplement, copies of which, when available, may be obtained from Leerink Partners LLC, Attention: Syndicate Department, One Federal Street, 37th Floor, Boston, MA, 02110, or by phone at 1-800-808-7525, ext. 6142, or by email at syndicate@leerink.com.

This press release shall not constitute an offer to sell or a solicitation of an offer to buy, nor shall there be any sale of these securities in any state or jurisdiction in which such an offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such state or jurisdiction.

About OvaScience
OvaScience, Inc. (NASDAQ: OVAS) is a global fertility company dedicated to improving treatment options for women around the world. OvaScience is discovering, developing and commercializing new fertility treatments because it believes women deserve more options. Each OvaScience treatment is based on the Company’s proprietary technology platform that leverages the breakthrough discovery of egg precursor (EggPCSM) cells – immature egg cells found inside the protective ovarian lining. The AUGMENTSM treatment, a fertility option specifically designed to improve egg health, is available in certain IVF clinics in select international regions. OvaScience has commenced a non-commercial preceptorship training program with the OvaPrimeSM treatment, which could increase a woman’s egg reserve, and is developing the OvaTureSM treatment, a potential next-generation IVF treatment that could help a woman produce healthy, young, fertilizable eggs without hormone injections. OvaScience treatments are not available in the U.S.

Forward-Looking Statements
This press release includes forward-looking statements including statements about OvaScience’s proposed public offering of securities and the intended use of proceeds therefrom. Actual results may differ materially from those indicated by these forward-looking statements as a result of various important factors, including risks related to: the possibility that international IVF clinics that OvaScience works with may determine not to provide or continue providing or studying the AUGMENT treatment or OvaPrime treatment, or to delay providing such treatments, based on clinical efficacy, safety or commercial, logistic, regulatory, enrollment, inability to agree on commercial terms, or other reasons; the science underlying the company’s treatments (including the AUGMENT, OvaPrime and OvaTure treatments), which is unproven; the Company’s ability to obtain regulatory approval or licenses where necessary for its treatments; OvaScience’s ability to develop its treatments on the timelines it expects, if at all; the Company’s ability to commercialize its treatments, on the timelines it expects, if at all; as well as those risks more fully discussed in the “Risk Factors” section of its most recently filed Annual Report on Form 10-K and Quarterly Reports on Form 10-Q. The forward-looking statements contained in this press release reflect the Company’s current views with respect to future events. It anticipates that subsequent events and developments will cause its views to change. However, while it may elect to update these forward-looking statements in the future, it specifically disclaims any obligation to do so. These forward-looking statements should not be relied upon as representing OvaScience’s view as of any date subsequent to the date hereof.

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