The Securities and Exchange Commission has not necessarily reviewed the information in this filing and has not determined if it is accurate and complete.
The reader should not assume that the information is accurate and complete.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 13F

FORM 13F INFORMATION TABLE

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COLUMN 1 COLUMN 2 COLUMN 3 COLUMN 4 COLUMN 5 COLUMN 6 COLUMN 7 COLUMN 8
VALUE SHRS OR SH/ PUT/ INVESTMENT OTHER VOTING AUTHORITY
NAME OF ISSUER TITLE OF CLASS CUSIP (x$1000) PRN AMT PRN CALL DISCRETION MANAGER SOLE SHARED NONE
AETNA INC NEW COM 00817Y108 15,567 86,296 SH   SOLE   86,296 0 0
BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 7,830 39,500 SH   SOLE   39,500 0 0
INTREXON CORP COM 46122T102 4,987 432,878 SH   SOLE   432,878 0 0
JPMORGAN CHASE & CO COM 46625H100 33,563 313,853 SH   SOLE   313,853 0 0
MACQUARIE INFRASTRUCTURE COR COM 55608B105 80,995 1,261,600 SH   SOLE   1,261,600 0 0
WILLIAMS COS INC DEL COM 969457100 6,871 225,363 SH   SOLE   225,363 0 0
ZIOPHARM ONCOLOGY INC COM 98973P101 276 66,749 SH   SOLE   66,749 0 0