- Statement of Changes in Beneficial Ownership (4)

FORM 4 [ ] 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 OF SECURITIES	OMB APPROVAL OMB Number: 3235-0287 Expires: November 30, 2011 Estimated average burden hours per response... 0.5
	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(f) of the Investment Company Act of 1940

1. Name and Address of Reporting Person ^* LAZARUS INVESTMENT PARTNERS LLLP	2. Issuer Name and Ticker or Trading Symbol AUTHENTIDATE HOLDING CORP [ ADAT ]	5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director __ X __ 10% Owner _____ Officer (give title below) _____ Other (specify below)
(Last) (First) (Middle) 3200 CHERRY CREEK SOUTH DRIVE, SUITE 670	3. Date of Earliest Transaction (MM/DD/YYYY) 1/27/2012
(Street) DENVER, CO 80209 (City) (State) (Zip)	4. If Amendment, Date Original Filed (MM/DD/YYYY)	6. Individual or Joint/Group Filing (Check Applicable Line) ___ Form filed by One Reporting Person _ X _ Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security (Instr. 3)	2. Trans. Date	2A. Deemed Execution Date, if any	3. Trans. 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)
1.Title of Security (Instr. 3)	2. Trans. Date	2A. Deemed Execution Date, if any	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	1/27/2012 ⁽¹⁾		P		300	A	$0.698	8739959	D
Common Stock	1/30/2012 ⁽¹⁾		P		1000	A	$0.6883	8740959	D
Common Stock	1/31/2012 ⁽¹⁾		P		1400	A	$0.7106	8742359	D
Common Stock	2/1/2012 ⁽¹⁾		P		200	A	$0.71	8742559	D
Common Stock	2/2/2012 ⁽¹⁾		P		100	A	$0.718	8742659	D
Common Stock	2/3/2012 ⁽¹⁾		P		400	A	$0.7699	8743059	D
Common Stock	2/6/2012 ⁽¹⁾		P		400	A	$0.7536	8743459	D
Common Stock	2/7/2012 ⁽¹⁾		P		600	A	$0.7332	8744059	D
Common Stock	2/8/2012 ⁽¹⁾		P		500	A	$0.736	8744559	D
Common Stock	2/10/2012 ⁽¹⁾		P		700	A	$0.7138	8745259	D
Common Stock	2/13/2012 ⁽¹⁾		P		1100	A	$0.7121	8746359	D
Common Stock	2/14/2012 ⁽¹⁾		P		900	A	$0.6998	8747259	D
Common Stock	2/15/2012 ⁽¹⁾		P		200	A	$0.7063	8747459	D
Common Stock	2/22/2012 ⁽¹⁾		P		300	A	$0.7027	8747759	D

*Table II - Derivative Securities Beneficially Owned ( e.g.* , puts, calls, warrants, options, convertible securities)**
1. Title of Derivate Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Trans. Date	3A. Deemed Execution Date, if any	4. Trans. 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		7. Title and Amount of Securities Underlying Derivative Security (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)
1. Title of Derivate Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Trans. Date	3A. Deemed Execution Date, if any	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)			11. Nature of Indirect Beneficial Ownership (Instr. 4)
Warrants (to buy)	$0.67	3/14/2012		P		1492537		9/14/2012 ⁽²⁾	3/14/2017	Common Stock	1492537	$ 0 ⁽³⁾	1492537	D

Explanation of Responses:
( 1)	Not required to be reported earlier since purchases for less than a total of $10,000.
( 2)	The warrants cannot be exercised except during the exercise period specified and may require a written waiver by the holder given at least 61 days before exercise. Under certain circumstances exercise may require approval of the issuer's common shareholders. Also contains cashless exercise provisions.
( 3)	Warrants were issued together with a promissory note for a purchase price for both equal to the principal amount of the promissory note.

Remarks:
The reported securities are owned directly by Lazarus Investment Partners LLLP, and indirectly by Lazarus Management Company LLC, as investment adviser and general partner of Lazarus Investment Partners LLLP, and Justin B. Borus, as managing member of Lazarus Management Company LLC. Lazarus Management Company LLC and Justin B. Borus disclaim beneficial ownership of the reported securities except to the extent of their pecuniary interest therein.

Reporting Owners
Reporting Owner Name / Address	Relationships
Reporting Owner Name / Address	Director	10% Owner	Officer	Other
LAZARUS INVESTMENT PARTNERS LLLP 3200 CHERRY CREEK SOUTH DRIVE SUITE 670 DENVER, CO 80209		X
Lazarus Management Co LLC 3200 CHERRY CREEK SOUTH DRIVE SUITE 670 DENVER, CO 80209		X
BORUS JUSTIN B 3200 CHERRY CREEK SOUTH DRIVE SUITE 670 DENVER, CO 80209		X

Signatures
/s/ Justin Borus. individually, and as managing member of Lazarus Management Company LLC for itself and as general partner of Lazarus Investment Partners LLLP		3/15/2012
^** Signature of Reporting Person		Date

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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