Houghton Mifflin Harcourt Company Announces Launch of a Secondary Offering of Common Stock and Concurrent Stock Repurchase from the Selling Stockholders

BOSTON - Houghton Mifflin Harcourt Company (“HMH” or the “Company”) today announced the launch of a secondary offering of 10,575,300 shares of its common stock. The shares are being offered solely by certain existing stockholders of the Company affiliated with Paulson & Co. Inc. and the Company will not receive any of the proceeds of the offering. The selling stockholders expect to grant the underwriters an option to purchase up to an additional 1,586,295 shares to sell in the offering. In addition, in a privately negotiated transaction, the Company entered into an agreement to repurchase $150 million in common stock from the selling stockholders affiliated with Paulson & Co. Inc. at a purchase price per share equal to the public offering price. The shares expected to be repurchased pursuant to this agreement are separate from the shares expected to be sold in the aforementioned public offering. The obligation for the Company to consummate the stock repurchase is conditioned upon the closing of the public offering and the sale of at least 10,575,300 shares of common stock by the selling stockholders in the public offering. Morgan Stanley and Goldman, Sachs & Co. are acting as joint book-running managers and the representatives of the underwriters, Credit Suisse and Wells Fargo Securities are acting as bookrunners and BMO Capital Markets, Houlihan Lokey, Piper Jaffray and Stifel are acting as co-managers for the offering. The offering will be made only by means of a prospectus supplement and an accompanying prospectus. Copies of the preliminary prospectus supplement and accompanying prospectus related to the offering may be obtained, when available, from both: Morgan Stanley & Co. LLC Attention: Prospectus Department 180 Varick Street, 2nd Floor New York, NY 10014 Goldman, Sachs & Co. Attention: Prospectus Department 200 West Street New York, NY 10282 Telephone: 1-866-471-2526 Email: prospectus-ny@ny.email.gs.com The registration statement relating to the offering of these securities has been filed with the U.S. Securities and Exchange Commission (the “SEC”) and automatically became effective. A copy of the registration statement relating to this offering can be accessed through the SEC’s website at www.sec.gov. This press release shall not constitute an offer to sell or the solicitation of an offer to buy these securities, nor shall there be any sale of these securities in any state or jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such state or jurisdiction. About Houghton Mifflin Harcourt Houghton Mifflin Harcourt (NASDAQ:HMHC) is a global learning company dedicated to changing people’s lives by fostering passionate, curious learners. As a leading provider of pre-K–12 education content, services, and cutting-edge technology solutions across a variety of media, HMH enables learning in a changing landscape. HMH is uniquely positioned to create engaging and effective educational content and experiences from early childhood to beyond the classroom. HMH serves more than 50 million students in over 150 countries worldwide, while its award-winning children's books, novels, non-fiction, and reference titles are enjoyed by readers throughout the world. Forward-Looking Statements The statements contained herein include forward-looking statements, which involve risks and uncertainties. These forward-looking statements can be identified by the use of forward-looking terminology, including the terms “believes,” “estimates,” “projects,” “anticipates,” “expects,” “could,” “intends,” “may,” “will,” “should,” “forecast,” “intend,” “plan,” “potential,” “project,” “target” or, in each case, their negative, or other variations or comparable terminology. These forward-looking statements include all matters that are not historical facts. They include statements regarding our intentions, beliefs or current expectations concerning, among other things, our results of operations, including billings, net sales, deferred revenue and recognition thereof; financial condition; liquidity; products, including product mix and format; prospects; growth; adjacent markets and market share; strategies, including with respect to capital allocation; the market and industry in which we operate; and potential business decisions. We derive many of our forward-looking statements from our operating budgets and forecasts, which are based upon many detailed assumptions. While we believe that our assumptions are reasonable, we caution that it is very difficult to predict the impact of known factors, and, of course, it is impossible for us to anticipate all factors that could affect our actual results. All forward-looking statements are based upon information available to us on the date of this release. By their nature, forward-looking statements involve risks and uncertainties because they relate to events and depend on circumstances that may or may not occur in the future. We caution you that forward-looking statements are not guarantees of future performance and that our actual results of operations, financial condition and liquidity, and the development of the industry in which we operate may differ materially from those made in or suggested by the forward-looking statements contained herein. In addition, even if our results of operations, financial condition and liquidity and the development of the industry in which we operate are consistent with the forward-looking statements contained herein, those results or developments may not be indicative of results or developments in subsequent periods. Important factors that could cause our results to vary from expectations include, but are not limited to: changes in state and local education funding and/or related programs, legislation and procurement processes; adverse or worsening economic trends or the continuation of current economic conditions; changes in consumer demand for, and acceptance of, our products; changes in product mix, format and timing of delivery; changes in competitive factors; offerings by technology companies that compete with our products; industry cycles and trends; conditions and/or changes in the publishing industry; changes in or the loss of our key third-party print vendors; restrictions under agreements governing our outstanding indebtedness; changes in laws or regulations governing our business and operations; changes or failures in the information technology systems we use; demographic trends; uncertainty surrounding our ability to enforce our intellectual property rights; inability to retain management or hire employees; impact of potential impairment of goodwill and other intangibles in a challenging economy; decline or volatility of our stock price regardless of our operating performance; and other factors discussed in the “Risk Factors” section of our Annual Report on Form 10-K, Quarterly Reports on Form 10-Q and other news releases we issue and filings we make with the SEC. In light of these risks, uncertainties and assumptions, the forward-looking events described herein may not occur. Contacts Houghton Mifflin Harcourt Investor Relations Rima Hyder, 617-351-3309 Vice President, Investor Relations rima.hyder@hmhco.com or Media Relations Bianca Olson, 617-351-3841 SVP, Corporate Affairs bianca.olson@hmhco.com