Sec Form 4/A Filing - Modi Rick @ CATABASIS PHARMACEUTICALS INC - 2016-09-08

FORM 4/A Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person Modi Rick 2. Issuer Name and Ticker or Trading Symbol CATABASIS PHARMACEUTICALS INC [ CATB] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) Chief Business Officer (Last) (First) (Middle) C/O CATABASIS PHARMACEUTICALS, INC., ONE KENDALL SQ, BLDG 1400E, STE B14202 3. Date of Earliest Transaction (MM/DD/YY) 09/08/2016 (Street) CAMBRIDGE, MA02139 4. If Amendment, Date Original Filed (MM/DD/YY) 09/12/2016 6. Individual or Joint/Group Filing (Check Applicable Line) __ X __ Form filed by One Reporting Person _____ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5) 6. Date Exercisable and Expiration Date (MM/DD/YY) 7. Title and Amount of Underlying Securities (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4) Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares Stock Option (right to buy) $ 4.31 ( 1 ) 09/08/2016 A 45,000 ( 2 ) 09/07/2026 Common Stock 45,000 $ 0 45,000 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Modi Rick C/O CATABASIS PHARMACEUTICALS, INC. ONE KENDALL SQ, BLDG 1400E, STE B14202 CAMBRIDGE, MA02139 Chief Business Officer Signatures /s/ Deirdre Cunnane as attorney-in-fact for Rick Modi 09/13/2016 Signature of Reporting Person Date

Explanation of Responses:

( 1 )This Form 4/A is being filed to correct the stated Conversion or Exercise Price of Derivative Security. The correct Exercise Price of the Derivative Security is $4.31 and was previously stated as $4.30. ( 2 )The option was granted on September 8, 2016 and is subject to vesting over a four year period, with 25% of the shares vesting on the first anniversary of September 8, 2016 and the reminder vesting over the ensuing three years at a rate of 2.0833% per month.

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

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