UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G made on January 25, 2013. Under the Securities Exchange Act of 1934 Issuer-WisdomTree Investments, Inc. Securities Class-common CUSIP Number-97717P104 Event Requiring Filing -December 31, 2012 Filed pursuant to Rule 13d-1(b) CUSIP Number 97717P104 Reporter- Horizon Kinetics LLC Tax ID#45-0642972 Place of Organization-Delaware Number of Shares-sole voting power-6,846,590 Sole dispositive power-6,846,590 Amount beneficially owned-6,846,590 Percent of Class represented by above-5.47% Type of Reporting Person-HC Name of Issuer-WisdomTree Investments, Inc. Address of Issuer-380 Madison Avenue, 21st Floor, New York, New York 10017 Name of Person Filing-Horizon Kinetics LLC Address -470 Park Avenue South, 4th Floor South, New York, New York 10016 Citizenship-Delaware Securities Class-common stock Filing re Section 240.13d-1(b) by investment adviser under Section 240.13d-1(b)(1)(ii)(E). Amount beneficially owned-6,846,590 Percent of class-5.47% sole voting power-6,846,590 shared power to vote or direct the vote-0 sole power to dispose/direct the disposition-6,846,590 shared power to dispose/direct the disposition-0 Certification pursuant to Section 240.13d-1(b): By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect. After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct. Date-January 25, 2013 Signature-Andrew M. Fishman Title-Associate General Counsel Horizon Kinetics LLC