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The validity of the shares of common stock offered hereby will be passed upon for us by Cooley LLP, New York, New York. As
of the date of this prospectus supplement, a partner of Cooley LLP beneficially owns an aggregate of 2,508 shares of common stock. Certain legal matters will be passed upon for the underwriters
by Latham & Watkins LLP, Menlo Park, California.
The financial statements incorporated in this prospectus supplement by reference to the Annual Report on Form 10-K for the year ended
December 31, 2016 have been so incorporated in reliance on the report of PricewaterhouseCoopers LLP, an independent registered public accounting firm, given on the authority of said firm
as experts in auditing and accounting.
WHERE YOU CAN FIND MORE INFORMATION
We file annual, quarterly and current reports, proxy statements and other information with the SEC. You may read and copy the registration
statement, as well as any other document filed by us with the SEC, at the SEC's Public Reference Room at 100 F Street NE, Washington, D.C. 20549. You can also request copies of these documents
by writing to the SEC and paying a fee for the copying cost. You may obtain information on the operation of the Public Reference Room by calling the SEC at (800) SEC-0330. The SEC maintains a
website that contains reports, proxy statements and other information regarding issuers that file electronically with the SEC, including AveXis. The address of the SEC website is www.sec.gov.
maintain a website at www.avexis.com. Information contained in or accessible through our website does not constitute a part of this