Sec Form 4/A Filing - Marshall William A @ AUTHENTIDATE HOLDING CORP - 2016-01-15

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 Marshall William A 2. Issuer Name and Ticker or Trading Symbol AUTHENTIDATE HOLDING CORP [ ADAT] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner _____ Officer (give title below) X __ Other (specify below) Former Chief Financial Officer (Last) (First) (Middle) AUTHENTIDATE HOLDING CORP., 300 CONNELL DRIVE 3. Date of Earliest Transaction (MM/DD/YY) 01/15/2016 (Street) BERKELEY HEIGHTS, NJ07922 4. If Amendment, Date Original Filed (MM/DD/YY) 01/20/2016 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 Warrant (right to buy) $ 12.06 01/15/2016 D( 1 ) 4,146 09/14/2012 03/14/2017 Common Stock 4,146 $ 0 0 D Warrant (right to buy) $ 12.06 01/15/2016 A( 1 ) 4,146 01/15/2016 03/14/2020 Common Stock 4,146 $ 0 4,146 D Warrant (right to buy) $ 12.06 01/15/2016 D( 1 ) 4,306 03/28/2013 09/28/2017 Common Stock 4,306 $ 0 0 D Warrant (right to buy) $ 12.06 01/15/2016 A( 1 ) 4,306 01/15/2016 09/28/2020 Common Stock 4,306 $ 0 4,306 D Warrant (right to buy) $ 12.06 01/15/2016 D( 1 ) 3,014 03/28/2013 09/28/2017 Common Stock 3,014 $ 0 0 D Warrant (right to buy) $ 12.06 01/15/2016 A( 1 ) 3,014 01/15/2016 09/28/2020 Common Stock 3,014 $ 0 3,014 D Warrant (right to buy) $ 8.55 01/15/2016 D( 1 ) 11,111 12/20/2013 06/20/2018 Common Stock 11,111 $ 0 0 D Warrant (right to buy) $ 8.55 01/15/2016 A( 1 ) 11,111 01/15/2016 06/20/2021 Common Stock 11,111 $ 0 11,111 D Warrant (right to buy) $ 7.9875 01/15/2016 D( 1 ) 2,440 03/03/2015 09/03/2019 Common Stock 2,440 $ 0 0 D Warrant (right to buy) $ 7.9875 01/15/2016 A( 1 ) 2,440 01/15/2016 09/03/2022 Common Stock 2,440 $ 0 2,440 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Marshall William A AUTHENTIDATE HOLDING CORP. 300 CONNELL DRIVE BERKELEY HEIGHTS, NJ07922 Former Chief Financial Officer Signatures /s/ William A. Marshall 03/29/2016 Signature of Reporting Person Date

Explanation of Responses:

( 1 )The reported transactions involve an amendment of the warrants to amend the expiration date, resulting in the deemed cancellation of the old warrants and the simultaneous issuance of new warrants for purposes of Section 16. The amendment to the warrants was in consideration of the Reporting Person entering into a lockup agreement with the issuer. This Form 4/A is being filed to correct the transaction codes reported in column 4 of Table II of the original Form 4 filed on January 20, 2016 which were inadvertently reported as "J". The correct transaction codes for the covered transactions are reflected in column 4 of Table II of this Form 4/A.

Remarks: Except for the change to the transaction codes described in note 1, above, there are no other changes to the original Form 4; however, the number of shares of common stock and the exercise prices of the derivative securities reported on this Form 4/A have been adjusted to reflect the one-for-nine reverse stock split implemented by the issuer on January 22, 2016.

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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