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
AGEX THERAPEUTICS INC COM 00848H108 1,322 318,023 SH   SOLE   0 0 1,322
AMAZON COM INC COM COM 023135106 459 259 SH   SOLE   0 0 459
APPLE INC COM 037833100 500 2,644 SH   SOLE   0 0 500
BERKSHIRE HATHAWAY INC CL B COM 084670702 26,649 132,762 SH   SOLE   0 0 26,649
BIOTIME INC COM 09066L105 5,574 4,214,560 SH   SOLE   0 0 5,574
CISCO SYSTEMS INC COM 17275R102 232 4,350 SH   SOLE   0 0 232
COLFAX CORP COM COM 194014106 5,255 180,993 SH   SOLE   0 0 5,255
COMPUGEN LTD ORD COM M25722105 1,299 311,333 SH   SOLE   0 0 1,299
DANAHER CORP DEL COM COM 235851102 20,755 159,131 SH   SOLE   0 0 20,755
FITBIT INC CL A COM 33812L102 117 20,000 SH   SOLE   0 0 117
FORTIVE CORP COM COM 34959J108 17,673 212,236 SH   SOLE   0 0 17,673
INOVIO PHARMACEUTICALS INC COM COM 45773H201 2,553 692,400 SH   SOLE   0 0 2,553
KINDER MORGAN INC DEL COM COM 49456B101 2,991 149,789 SH   SOLE   0 0 2,991
MONSTER BEVERAGE CORP NEW COM COM 61174X109 17,568 322,245 SH   SOLE   0 0 17,568
STAAR SURGICAL CO COM PAR $0.01 COM 852312305 18,547 524,686 SH   SOLE   0 0 18,547
WINMARK CORP COM COM 974250102 3,545 20,026 SH   SOLE   0 0 3,545