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 |
| ADAPTIVE BIOTECHNOLOGIES COR | COM | 00650F109 | 218 | 30,650 | SH | SOLE | 0 | 30,650 | 0 | 0 | |
| AES CORP | COM | 00130H105 | 40,997 | 1,814,045 | SH | SOLE | 0 | 1,814,045 | 0 | 0 | |
| ALPHABET INC | CAP STK CL C | 02079K107 | 1,061 | 11,040 | SH | SOLE | 0 | 11,040 | 0 | 0 | |
| AMAZON COM INC | COM | 023135106 | 52,280 | 462,654 | SH | SOLE | 0 | 462,654 | 0 | 0 | |
| AMERICAN INTL GROUP INC | COM NEW | 026874784 | 1,017 | 21,411 | SH | SOLE | 0 | 21,411 | 0 | 0 | |
| AMERICAN TOWER CORP | CL A | 03027X100 | 127,241 | 592,646 | SH | SOLE | 0 | 592,646 | 0 | 0 | |
| APPLE INC | COM | 037833100 | 45,585 | 329,846 | SH | SOLE | 0 | 329,846 | 0 | 0 | |
| ATOMERA INC | COM | 04965B100 | 2,715 | 267,981 | SH | SOLE | 0 | 267,981 | 0 | 0 | |
| BANK AMER CORP | COM | 060505104 | 24,013 | 795,126 | SH | SOLE | 0 | 795,126 | 0 | 0 | |
| BERKSHIRE HATHAWAY INC DEL | CL A | 084670108 | 2,439 | 6 | SH | SOLE | 0 | 6 | 0 | 0 | |
| BERKSHIRE HATHAWAY INC DEL | CL B | 084670702 | 41,455 | 155,252 | SH | SOLE | 0 | 155,252 | 0 | 0 | |
| B O K FINL CORP | COM NEW | 05561Q201 | 11,740 | 132,120 | SH | SOLE | 0 | 132,120 | 0 | 0 | |
| BRIGHTSPIRE CAPITAL INC | COM CL A | 10949T109 | 1,340 | 212,350 | SH | SOLE | 0 | 212,350 | 0 | 0 | |
| BROOKFIELD ASSET MGMT INC | CL A LTD VT SH | 112585104 | 511 | 12,500 | SH | SOLE | 0 | 12,500 | 0 | 0 | |
| BROOKFIELD INFRAST PARTNERS | LP INT UNIT | G16252101 | 6,597 | 183,751 | SH | SOLE | 0 | 183,751 | 0 | 0 | |
| CARMAX INC | COM | 143130102 | 26,757 | 405,283 | SH | SOLE | 0 | 405,283 | 0 | 0 | |
| CITY OFFICE REIT INC | COM | 178587101 | 327 | 32,805 | SH | SOLE | 0 | 32,805 | 0 | 0 | |
| COPART INC | COM | 217204106 | 43,289 | 406,856 | SH | SOLE | 0 | 406,856 | 0 | 0 | |
| COSTCO WHSL CORP NEW | COM | 22160K105 | 260 | 550 | SH | SOLE | 0 | 550 | 0 | 0 | |
| CYTOSORBENTS CORP | COM NEW | 23283X206 | 3,148 | 2,314,854 | SH | SOLE | 0 | 2,314,854 | 0 | 0 | |
| DENNYS CORP | COM | 24869P104 | 291 | 30,940 | SH | SOLE | 0 | 30,940 | 0 | 0 | |
| DIGITALBRIDGE GROUP INC | CL A COM | 25401T108 | 42,724 | 3,415,205 | SH | SOLE | 0 | 3,415,205 | 0 | 0 | |
| DOLLAR TREE INC | COM | 256746108 | 1,859 | 13,656 | SH | SOLE | 0 | 13,656 | 0 | 0 | |
| DUCK CREEK TECHNOLOGIES INC | SHS | 264120106 | 4,594 | 387,695 | SH | SOLE | 0 | 387,695 | 0 | 0 | |
| ENERGY RECOVERY INC | COM | 29270J100 | 37,418 | 1,721,164 | SH | SOLE | 0 | 1,721,164 | 0 | 0 | |
| ENERGY TRANSFER LP | COM UT LTD PTN | 29273V100 | 4,989 | 452,300 | SH | SOLE | 0 | 452,300 | 0 | 0 | |
| ENTERPRISE PRODS PARTNERS LP | COM | 293792107 | 3,011 | 126,608 | SH | SOLE | 0 | 126,608 | 0 | 0 | |
| EQUINIX | COM NEW | 29444U700 | 1,690 | 2,971 | SH | SOLE | 0 | 2,971 | 0 | 0 | |
| EXXON MOBIL CORP | COM | 30231G102 | 742 | 8,496 | SH | SOLE | 0 | 8,496 | 0 | 0 | |
| GLADSTONE COML CORP | COM | 376536108 | 1,433 | 92,435 | SH | SOLE | 0 | 92,435 | 0 | 0 | |
| JPMORGAN CHASE & CO | COM | 46625H100 | 306 | 2,924 | SH | SOLE | 0 | 2,924 | 0 | 0 | |
| KINDER MORGAN INC | COM | 49456B101 | 2,614 | 157,105 | SH | SOLE | 0 | 157,105 | 0 | 0 | |
| L3HARRIS TECHNOLOGIES INC | COM | 502431109 | 283 | 1,362 | SH | SOLE | 0 | 1,362 | 0 | 0 | |
| LOCKHEED MARTIN CORP | COM | 539830109 | 41,133 | 106,483 | SH | SOLE | 0 | 106,483 | 0 | 0 | |
| LUNA INNOVATIONS | COM | 550351100 | 641 | 144,410 | SH | SOLE | 0 | 144,410 | 0 | 0 | |
| MAGNITE INC | COM | 55955D100 | 210 | 32,000 | SH | SOLE | 0 | 32,000 | 0 | 0 | |
| MARKEL CORP | COM | 570535104 | 89,716 | 82,747 | SH | SOLE | 0 | 82,747 | 0 | 0 | |
| MASTERCARD INC | CL A | 57636Q104 | 26,318 | 92,557 | SH | SOLE | 0 | 92,557 | 0 | 0 | |
| MICROSOFT CORP | COM | 594918104 | 116,321 | 499,446 | SH | SOLE | 0 | 499,446 | 0 | 0 | |
| MPLX LP | COM UNIT REP LTD | 55336V100 | 6,778 | 225,844 | SH | SOLE | 0 | 225,844 | 0 | 0 | |
| NEWTEK BUSINESS CVCS CORP | COM NEW | 652526203 | 767 | 47,000 | SH | SOLE | 0 | 47,000 | 0 | 0 | |
| NOVAVAX INC | COM | 670002401 | 903 | 49,614 | SH | SOLE | 0 | 49,614 | 0 | 0 | |
| OPTIMIZERX CORP | COM NEW | 68401U204 | 6,244 | 421,296 | SH | SOLE | 0 | 421,296 | 0 | 0 | |
| O REILLY AUTOMOTIVE INC NEW | COM | 67103H107 | 60,274 | 85,695 | SH | SOLE | 0 | 85,695 | 0 | 0 | |
| PRIVIA HEALTH GROUP INC | COM | 74276R102 | 596 | 17,500 | SH | SOLE | 0 | 17,500 | 0 | 0 | |
| PROCTER AND GAMBLE CO | COM | 742718109 | 280 | 2,221 | SH | SOLE | 0 | 2,221 | 0 | 0 | |
| SBA COMMUNICATIONS CORP | COM | 78410G104 | 2,157 | 7,576 | SH | SOLE | 0 | 7,576 | 0 | 0 | |
| SPDR GOLD TRUST | GOLD SHS | 78463V107 | 448 | 2,894 | SH | SOLE | 0 | 2,894 | 0 | 0 | |
| SPROTT PHYSICAL GOLD TRUST | UNIT | 85207H104 | 497 | 38,860 | SH | SOLE | 0 | 38,860 | 0 | 0 | |
| SRAX INC | CL A | 78472M106 | 59 | 34,400 | SH | SOLE | 0 | 34,400 | 0 | 0 | |
| STARWOOD PPTY TR INC | COM | 85571B105 | 1,261 | 69,195 | SH | SOLE | 0 | 69,195 | 0 | 0 | |
| KRAFT HEINZ CO | COM | 500754106 | 264 | 7,925 | SH | SOLE | 0 | 7,925 | 0 | 0 | |
| TRIPLEPOINT VENTURE GROWTH B | COM | 89677Y100 | 315 | 29,000 | SH | SOLE | 0 | 29,000 | 0 | 0 | |
| UNIVERSAL DISPLAY CORP | COM | 91347P105 | 22,019 | 233,371 | SH | SOLE | 0 | 233,371 | 0 | 0 | |
| VANGUARD INDEX FDS | S&P 500 ETF SHS | 922908363 | 651 | 1,983 | SH | SOLE | 0 | 1,983 | 0 | 0 | |
| VIRGINIA NATL BANKSHARES CORP | COM | 928031103 | 350 | 10,800 | SH | SOLE | 0 | 10,800 | 0 | 0 | |
| VISA INC | COM CL A | 92826C839 | 14,050 | 79,086 | SH | SOLE | 0 | 79,086 | 0 | 0 | |
| WALMART INC | COM | 931142103 | 208 | 1,607 | SH | SOLE | 0 | 1,607 | 0 | 0 | |
| WALGREENS BOOTS ALLIANCE INC | COM | 931427108 | 15,182 | 483,508 | SH | SOLE | 0 | 483,508 | 0 | 0 | |
| DISNEY WALT CO | COM DISNEY | 254687106 | 602 | 6,377 | SH | SOLE | 0 | 6,377 | 0 | 0 | |