The Securities and Exchange Commission has not necessarily reviewed the information in this filing and has not determined if it is accurate and complete. | |||||||||||||||||
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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 |
| ABBOTT LABS | COM | 002824100 | 28 | 360 | SH | SOLE | 360 | 0 | 0 | ||
| ALLEGHANY CORP DEL | COM | 017175100 | 156 | 283 | SH | SOLE | 283 | 0 | 0 | ||
| ALPHABET INC | CAP STK CL A | 02079K305 | 246 | 212 | SH | SOLE | 212 | 0 | 0 | ||
| ALPHABET INC | CAP STK CL C | 02079K107 | 6,964 | 5,989 | SH | SOLE | 5,989 | 0 | 0 | ||
| AVALARA INC | COM | 05338G106 | 3,235 | 43,360 | SH | SOLE | 43,360 | 0 | 0 | ||
| BERKSHIRE HATHAWAY INC DEL | CL A | 084670108 | 544 | 2 | SH | SOLE | 2 | 0 | 0 | ||
| BERKSHIRE HATHAWAY INC DEL | CL B NEW | 084670702 | 378 | 2,065 | SH | SOLE | 2,065 | 0 | 0 | ||
| BROWN FORMAN CORP | CL B | 115637209 | 200 | 3,600 | SH | SOLE | 3,600 | 0 | 0 | ||
| CONOCOPHILLIPS | COM | 20825C104 | 25 | 800 | SH | SOLE | 800 | 0 | 0 | ||
| COUPA SOFTWARE INC | COM | 22266L106 | 4,661 | 33,358 | SH | SOLE | 33,358 | 0 | 0 | ||
| DIGIMARC CORP NEW | COM | 25381B101 | 4,851 | 371,725 | SH | SOLE | 371,725 | 0 | 0 | ||
| ENSTAR GROUP LIMITED | SHS | G3075P101 | 7,077 | 44,497 | SH | SOLE | 44,497 | 0 | 0 | ||
| MASTERCARD INC | CL A | 57636Q104 | 267 | 1,104 | SH | SOLE | 1,104 | 0 | 0 | ||
| MICROSOFT CORP | COM | 594918104 | 347 | 2,200 | SH | SOLE | 2,200 | 0 | 0 | ||
| NATERA INC | COM | 632307104 | 2,344 | 78,490 | SH | SOLE | 78,490 | 0 | 0 | ||
| NOVO-NORDISK A S | ADR | 670100205 | 136 | 2,255 | SH | SOLE | 2,255 | 0 | 0 | ||
| PHILLIPS 66 | COM | 718546104 | 9 | 170 | SH | SOLE | 170 | 0 | 0 | ||
| PTC INC | COM | 69370C100 | 6,803 | 111,138 | SH | SOLE | 111,138 | 0 | 0 | ||
| RENAISSANCERE HOLDINGS LTD | COM | G7496G103 | 5,509 | 36,897 | SH | SOLE | 36,897 | 0 | 0 | ||
| SEATTLE GENETICS INC | COM | 812578102 | 8,419 | 72,969 | SH | SOLE | 72,969 | 0 | 0 | ||
| SPDR GOLD TRUST | GOLD SHS | 78463V107 | 96 | 650 | SH | SOLE | 650 | 0 | 0 | ||
| STEREOTAXIS INC | COM NEW | 85916J409 | 223 | 74,000 | SH | SOLE | 74,000 | 0 | 0 | ||
| T2 BIOSYSTEMS INC | COM | 89853L104 | 10 | 14,700 | SH | SOLE | 14,700 | 0 | 0 | ||
| TEXAS PAC LD TR | SUB CTF PROP I T | 882610108 | 5,373 | 14,138 | SH | SOLE | 14,138 | 0 | 0 | ||
| TRUPANION INC | COM | 898202106 | 7,171 | 275,506 | SH | SOLE | 275,506 | 0 | 0 | ||
| UBIQUITI INC | COM | 90353W103 | 6,124 | 43,257 | SH | SOLE | 43,257 | 0 | 0 | ||
| VOLITIONRX LTD | COM | 928661107 | 5,738 | 1,845,144 | SH | SOLE | 1,845,144 | 0 | 0 | ||
| XPO LOGISTICS INC | COM | 983793100 | 7,485 | 153,540 | SH | SOLE | 153,540 | 0 | 0 | ||