FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES 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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(Print or Type Responses)

1. Name and Address of Reporting Person *   KLEIN MARK 2. Date of Event Requiring Statement (Month/Day/Year) 03/30/2012 3. Issuer Name and Ticker or Trading Symbol NATIONAL HOLDINGS CORP [NHLD.OB] (Last) (First) (Middle) 120 BROADWAY, 27TH FLOOR 4. Relationship of Reporting Person(s) to Issuer (Check all applicable) __X__ Director __X__ 10% Owner _____ Officer (give title below) _____ Other (specify below) 5. If Amendment, Date Original Filed(Month/Day/Year) (Street) NEW YORK, NY 10271 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 Beneficially Owned

1.Title of Security (Instr. 4) 2. Amount of Securities Beneficially Owned (Instr. 4) 3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5) 4. Nature of Indirect Beneficial Ownership (Instr. 5)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.			SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
6% Convertible Subordinated Note	03/30/2012	  (1)(2)	Common Stock	13,200,000	$ 0.5	I (3)	See Footnote (4)
6% Convertible Subordinated Note	04/04/2012	  (1)(2)	Common Stock	2,800,000	$ 0.5	I (3)	See Footnote (4)
Series C Preferred Stock	07/12/2010	  (5)	Common Stock	201,041	$ 0.5	D	Â

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
KLEIN MARK 120 BROADWAY, 27TH FLOOR NEW YORK, NY 10271	  X	  X	Â	Â

Signatures

/s/ Mark D Klein		05/21/2012
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 5(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).
(1)	Unless otherwise converted, the Notes shall mature on the earlier to occur of (i) 10 business days after delivery by National Securities Growth Partners LLC ("NSGP"), the holder of the Notes, of a notice of maturity (a "Maturity Notice"); provided that NSGP shall not be entitled to issue a Maturity Notice prior to December 30, 2012, or (ii) March 30, 2015, unless, in each case, such date shall be otherwise extended in writing by NSGP, provided that upon completion of a restructuring of the capital of National Holding Corporation (the "Company") in a manner satisfactory to NSGP, in its sole discretion (a "Company Restructuring"), the Notes shall mature on March 30, 2015, unless extended; provided further, for the avoidance of doubt, that upon a Company Restructuring, NSGP shall not be entitled to deliver a Maturity Notice prior to March 30, 2015, unless otherwise agreed in writing by the Company and NSGP.
(2)	Each Note is convertible at any time prior to its maturity into "units" of the Company consisting of (a) shares of the Company's newly created Series E Convertible Preferred Stock, which is in turn convertible into shares of the Company's Common Stock, and (b) a warrant exercisable at $0.50 for shares of the Company's Common Stock. Through these conversions, the Note issued on March 30, 2012 is convertible into approximately 13,200,000 shares of the Company's Common Stock, and the Note issued on April 4, 2012 is convertible into approximately 2,800,000 shares of the Company's Common Stock.
(3)	National Securities Growth Partners LLC ("NSGP") directly owns the 6% Convertible Subordinated Notes. Mr. Klein is an officer of NSGP and the indirect owner of one of its members.
(4)	NSGP has investment and voting power with respect to Company securities held by the funds managed by NSGP. Mr. Klein, as an officer and the indirect owner of one of NSGP's members, may be deemed to beneficially own the shares of Company securities beneficially owned by NSGP. The Reporting Persons disclaim any beneficial ownership of any of the Company's securities to which this report relates for purposes of Section 16, except to the extent of their pecuniary interest therein.
(5)	N/A

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