Washington, D.C. 20549


Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB Number: 3235-0104
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hours per response: 0.5
1. Name and Address of Reporting Person*
Siracusano Luciano III

(Last) (First) (Middle)


(City) (State) (Zip)
2. Date of Event Requiring Statement (Month/Day/Year)
3. Issuer Name and Ticker or Trading Symbol
WisdomTree Investments, Inc. [ WSDT ]
4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director 10% Owner
X Officer (give title below) Other (specify below)
Chief Investment Strategist
5. If Amendment, Date of Original Filed (Month/Day/Year)
6. Individual or Joint/Group Filing (Check Applicable Line)
X Form filed by One Reporting Person
Form filed by More than One Reporting Person
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)
Common Stock 98,245 D
Common Stock 18,191(1) D
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: 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
Stock Option (right to buy) 11/06/2005 11/05/2012 common stock 2,143 0.07 D
Stock Option (right to buy) (2) 06/29/2013 common stock 156,163 0.1 D
Stock Option (right to buy) (3) 03/16/2014 common stock 750,000 0.03 D
Stock Option (right to buy) (4) 11/09/2013 common stock 336,953 0.16 D
Stock Option (right to buy) (5) 01/25/2019 common stock 200,000 0.7 D
Explanation of Responses:
1. Restricted stock award vesting on Janaury 27, 2012
2. Exercisable as to 56,163 shares on July 30, 2006 and as to 100,000 shares on July 30, 2007
3. Exercisable as to 75,000 shares on each of March 17, 2005, 2006, 2007, 2008, and 2009 and exercisable as to an additional 375,000 shares at such time as the issuer achieves at least $1.00 of net income in two consecutive fiscal quarters
4. Exercisable as to 67,390 shares on each of November 10, 2005 and 2007 and exercisable as to an additional 67,391 shares on each of November 10, 2006, 2008 and 2009
5. Exercisable as to 50,000 shares on each of Janaury 26, 2010, 2011, 2012 and 2013
Exhibit Index: Exhibit 24 Power of Attorney by Luciano Siracusano III
Luciano Siracusano III 07/22/2011
** 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 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).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
Exhibit 24

       Know all by these presents, that the undersigned hereby constitutes and appoints each of
Peter M. Ziemba, Sarah English and Amit Muni, signing singly, the undersigned's true and lawful
attorney-in-fact to:

(1) execute for and on behalf of the undersigned, in the undersigned's capacity as an officer
and/or director of WisdomTree Investments, Inc. (the Company), Forms 3, 4 and 5 and
amendments thereto in accordance with Section 16(a) of the Securities Exchange Act of 1934 and
the rules thereunder;

(2) do and perform any and all acts for and on behalf of the undersigned which may be necessary
or desirable to complete and execute any such Form 3, 4 or 5 and amendments thereto and timely
file such form with the United States Securities and Exchange Commission and any stock
exchange or similar authority; and

(3) take any other action of any type whatsoever in connection with the foregoing which, in the
opinion of such attorney-in-fact, may be of benefit to, in the best interest of, or legally required
by, the undersigned, it being understood that the documents executed by such attorney-in-fact on
behalf of the undersigned pursuant to this Power of Attorney shall be in such form and shall
contain such terms and conditions as such attorney-in-fact may approve in such attorney-in-fact's

       The undersigned hereby grants to each such attorney-in-fact full power and authority to do
and perform any and every act and thing whatsoever requisite, necessary, or proper to be done in
the exercise of any of the rights and powers herein granted, as fully to all intents and purposes as
the undersigned might or could do if personally present, with full power of substitution or
revocation, hereby ratifying and confirming all that such attorney-in-fact, or such attorney-in-
fact's substitute or substitutes, shall lawfully do or cause to be done by virtue of this Power of
Attorney and the rights and powers herein granted. The undersigned acknowledges that the
foregoing attorneys-in-fact, in serving in such capacity at the request of the undersigned, are not
assuming, nor is the Company assuming, any of the undersigned's responsibilities to comply with
Section 16 of the Securities Exchange Act of 1934.

       This Power of Attorney shall remain in full force and effect until the undersigned is no
longer required to file Forms 3, 4 and 5 with respect to the undersigned's holdings of and
transactions in securities issued by the Company, unless earlier revoked by the undersigned in a
signed writing delivered to the foregoing attorneys-in-fact. This Power of Attorney may be filed
with the United States Securities and Exchange Commission as a confirming statement of the
authority granted herein.

       IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be
executed as of July 22, 2011.

/s/ Luciano Siracusano III

Luciano Siracusano III
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