UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(d) OF THE

SECURITIES EXCHANGE ACT OF 1934

DATE OF REPORT (DATE OF EARLIEST EVENT REPORTED): May 26, 2010

AUTHENTIDATE HOLDING CORP.

(Exact name of registrant as specified in its charter)

COMMISSION FILE NUMBER: 0-20190

DELAWARE	14-1673067
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)

Connell Corporate Center

300 Connell Drive, 5^th Floor

Berkeley Heights, New Jersey 07922

(Address and zip code of principal executive offices)

(908) 787-1700

(Registrant’s telephone number, including area code

CHECK THE APPROPRIATE BOX BELOW IF THE FORM 8-K FILING IS INTENDED TO SIMULTANEOUSLY SATISFY THE FILING OBLIGATION OF THE REGISTRANT UNDER ANY OF THE FOLLOWING PROVISIONS:

¨ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

¨ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

¨ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

¨ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Item 3.01 Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing.

On May 26, 2010, Authentidate Holding Corp. (the “Company”) received a staff deficiency letter from The Nasdaq Stock Market (“Nasdaq”) notifying the Company that for the past 30 consecutive business days, the closing bid price per share of its common stock was below the $1.00 minimum bid price requirement for continued listing on The Nasdaq Capital Market, as required by Nasdaq Listing Rule 5550(a)(2) (the “Listing Rule”). As a result, the Company was notified by Nasdaq that it is not in compliance with the Listing Rule. Nasdaq has provided the Company with 180 calendar days, or until November 22, 2010, to regain compliance. This notification has no immediate effect on the Company’s listing on the Nasdaq Capital Market or on the trading of the Company’s common stock.

To regain compliance with the Listing Rule, the closing bid price of the Company’s common stock must meet or exceed $1.00 per share for a minimum of ten consecutive business days during the 180 day grace period. If the Company’s common stock does not regain compliance with the Listing Rule during this grace period, it will be eligible for an additional grace period of 180 calendar days provided that the Company satisfies Nasdaq’s initial listing standards for listing on The Nasdaq Capital Market, other than the minimum bid price requirement. If the Company does not regain compliance during the initial grace period and is not eligible for an additional grace period, Nasdaq will provide written notice that the Company’s common stock is subject to delisting from The Nasdaq Capital Market. In that event, the Company may appeal such determination to a hearings panel. There can be no guarantee that the Company will be able to regain compliance with the Listing Rule.

On May 28, 2010, the Company issued a press release announcing its receipt of Nasdaq’s letter. A copy of the press release is filed as Exhibit 99.1 to this Current Report on Form 8-K.

Item 9.01 Financial Statements and Exhibits.

(d)	Exhibit No.	Description
	99.1	Press Release dated May 28, 2010

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SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, hereunto duly authorized.

	AUTHENTIDATE HOLDING CORP.
	By:	/s/ O’Connell Benjamin
	Name:	O’Connell Benjamin
	Title:	President
Date: May 28, 2010

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EXHIBIT INDEX

Exhibit No.	Description of Document
99.1	Press Release dated May 28, 2010.

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