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
OMB APPROVAL
OMB Number: 3235-0006
Estimated average burden
hours per response: 23.8
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
INSMED INC NOTE 1.750% 1/1 457669AA7 7,536 9,000,000 SH   SOLE   9,000,000 0 0
GOGO INC NOTE 6.000% 5/1 38046CAD1 7,936 10,670,000 SH   SOLE   10,670,000 0 0
BAIDU INC SPON ADR REP A 056752108 8,726 86,574 SH   SOLE   86,574 0 0
AIR TRANSPORT SERVICES GROUP COM 00922R105 16,041 877,517 SH   SOLE   877,517 0 0
AIR TRANSPORT SERVICES GROUP NOTE 1.125% 10/1 00922RAB1 2,585 3,000,000 SH   SOLE   3,000,000 0 0
ALPHABET INC CAP STK CL A 02079K107 20,022 17,231 SH   SOLE   17,231 0 0
BERKSHIRE HATHAWAY CL B NEW 084670702 7,371 40,318 SH   SOLE   40,318 0 0
CHROMADEX CORP COM NEW 171077407 1,027 315,025 SH   SOLE   315,025 0 0
LIBERTY BROADBAND CORP COM SER C 530307305 4,967 46,416 SH   SOLE   46,416 0 0
INSMED INC COM PAR $.01 457669307 2,560 159,701 SH   SOLE   159,701 0 0
INTERACTIVE BROKERS GROUO IN COM CL A 45841N107 10,313 238,898 SH   SOLE   238,898 0 0
MASTERCARD INC CL A 57636Q104 942 3,900 SH   SOLE   3,900 0 0
NELNET INC CL A 64031N108 26,531 584,255 SH   SOLE   584,255 0 0
OFS CAP CORP COM 67103B100 689 169,262 SH   SOLE   169,262 0 0
PAYPAL HOLDINGS INC COM 70450Y103 10,329 107,884 SH   SOLE   107,884 0 0
STARS GROUP INC COM 85570W100 7,152 350,241 SH   SOLE   350,241 0 0