Catabasis Pharmaceuticals Announces Reverse Stock Split

Catabasis Pharmaceuticals, Inc. CATB, a clinical-stage biopharmaceutical company, announced today that it will effect a one-for-ten reverse stock split of its common stock that will be effective on December 28, 2018. The Company's common stock will begin trading on a split-adjusted basis when the market opens on December 31, 2018 under the existing symbol "CATB".

The reverse stock split is primarily intended to bring the Company into compliance with the minimum bid price requirement for maintaining its listing on the Nasdaq Global Market. The new CUSIP number for the common stock following the reverse split will be 14875P 206.

On December 12, 2018, the holders of a majority of the Company's outstanding shares of common stock approved the reverse stock split and gave the Board discretionary authority to select a ratio for the split ranging from one-for-five to one-for-15. The Board approved the reverse stock split on a one-for-ten ratio on December 19, 2018.

The reverse stock split will affect all issued and outstanding shares of the Company's common stock, as well as the number of shares of common stock available for issuance under the Company's equity incentive plans. In addition, the reverse stock split will reduce the number of shares of common stock issuable upon the exercise of stock options or warrants outstanding immediately prior to the reverse split and correspondingly increase the respective exercise prices. The par value of the Company's common stock will remain unchanged at $0.001 per share after the reverse stock split. The reverse stock split will not change the authorized number of shares of the Company's common stock. The reverse stock split will affect all stockholders uniformly and will not alter any stockholder's percentage interest in the Company's equity, except to the extent that the reverse stock split results in some stockholders owning a fractional share as described below. No fractional shares will be issued in connection with the reverse split. Stockholders who would otherwise be entitled to receive a fractional share will instead receive a cash payment.

The reverse stock split will reduce the number of shares of common stock issued and outstanding from approximately 71 million to approximately 7.1 million.

American Stock Transfer & Trust Company is acting as the exchange agent and transfer agent for the reverse stock split. Stockholders holding their shares in book-entry form or in brokerage accounts need not take any action in connection with the reverse stock split. Beneficial holders are encouraged to contact their bank, broker or custodian with any procedural questions.

About Catabasis
At Catabasis Pharmaceuticals, our mission is to bring hope and life-changing therapies to patients and their families. Our lead program is edasalonexent, an NF-kB inhibitor in development for the treatment of Duchenne muscular dystrophy. Our global Phase 3 PolarisDMD trial is currently enrolling boys affected by Duchenne. For more information on edasalonexent and our Phase 3 PolarisDMD trial, please visit www.catabasis.com or www.twitter.com/catabasispharma.

Forward Looking Statements
Any statements in this press release about future expectations, plans and prospects for the Company, including statements containing the words "believes," "anticipates," "plans," "expects," "may" and similar expressions, constitute forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. Actual results may differ materially from those indicated by such forward-looking statements as a result of various important factors, including: those factors discussed in the "Risk Factors" section of the Company's Quarterly Report on Form 10-Q for the quarter ended September 30, 2018, which is on file with the Securities and Exchange Commission, and in other filings that the Company may make with the Securities and Exchange Commission in the future. In addition, the forward-looking statements included in this press release represent the Company's views as of the date of this press release. The Company anticipates that subsequent events and developments will cause the Company's views to change. However, while the Company may elect to update these forward-looking statements at some point in the future, the Company specifically disclaims any obligation to do so. These forward-looking statements should not be relied upon as representing the Company's views as of any date subsequent to the date of this release.

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