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
ADAPTIVE BIOTECHNOLOGIES COR COM 00650F109 786 28,000 SH   SOLE 0 28,000 0 0
AES CORP COM 00130H105 49,538 2,038,616 SH   SOLE 0 2,038,616 0 0
AMAZON COM INC COM 023135106 62,712 18,808 SH   SOLE 0 18,808 0 0
AMERICAN INTL GROUP INC COM NEW 026874784 1,217 21,411 SH   SOLE 0 21,411 0 0
AMERICAN TOWER CORP CL A 03027X100 173,959 594,730 SH   SOLE 0 594,730 0 0
ANTARES PHARMA INC COM 036642106 1,078 301,852 SH   SOLE 0 301,852 0 0
APPLE INC COM 037833100 58,305 328,350 SH   SOLE 0 328,350 0 0
ATOMERA INC COM 04965B100 5,012 249,081 SH   SOLE 0 249,081 0 0
BANK AMER CORP COM 060505104 38,497 865,296 SH   SOLE 0 865,296 0 0
BERKSHIRE HATHAWAY INC DEL CL A 084670108 2,704 6 SH   SOLE 0 6 0 0
BERKSHIRE HATHAWAY INC DEL CL B 084670702 46,299 154,845 SH   SOLE 0 154,845 0 0
B O K FINL CORP COM NEW 05561Q201 14,063 133,310 SH   SOLE 0 133,310 0 0
BRIGHTSPIRE CAPITAL INC COM CL A 10949T109 1,752 170,750 SH   SOLE 0 170,750 0 0
BROOKFIELD ASSET MGMT INC CL A LTD VT SH 112585104 755 12,500 SH   SOLE 0 12,500 0 0
BROOKFIELD INFRASTRUCTURE CO COM SB VTG SHS A 11275Q107 613 8,983 SH   SOLE 0 8,983 0 0
BROOKFIELD INFRAST PARTNERS LP INT UNIT G16252101 7,458 122,637 SH   SOLE 0 122,637 0 0
CARMAX INC COM 143130102 55,602 426,955 SH   SOLE 0 426,955 0 0
CITY OFFICE REIT INC COM 178587101 696 35,305 SH   SOLE 0 35,305 0 0
COPART INC COM 217204106 59,030 389,329 SH   SOLE 0 389,329 0 0
COSTCO WHSL CORP NEW COM 22160K105 312 550 SH   SOLE 0 550 0 0
CROWN CASTLE INTL CORP NEW COM 22822V101 253 1,210 SH   SOLE 0 1,210 0 0
CYTOSORBENTS CORP COM NEW 23283X206 7,489 1,787,275 SH   SOLE 0 1,787,275 0 0
DENNYS CORP COM 24869P104 495 30,940 SH   SOLE 0 30,940 0 0
DIGITALBRIDGE GROUP INC CL A COM 25401T108 48,735 5,850,571 SH   SOLE 0 5,850,571 0 0
DOLLAR TREE INC COM 256746108 63,074 448,864 SH   SOLE 0 448,864 0 0
DUCK CREEK TECHNOLOGIES INC SHS 264120106 7,817 259,607 SH   SOLE 0 259,607 0 0
ENERGY RECOVERY INC COM 29270J100 37,226 1,732,254 SH   SOLE 0 1,732,254 0 0
ENERGY TRANSFER LP COM UT LTD PTN 29273V100 3,722 452,300 SH   SOLE 0 452,300 0 0
ENTERPRISE PRODS PARTNERS LP COM 293792107 2,780 126,608 SH   SOLE 0 126,608 0 0
ENVIVA PARTNERS LP COM UNIT 29414J107 1,761 25,000 SH   SOLE 0 25,000 0 0
EQUINIX COM NEW 29444U700 2,799 3,309 SH   SOLE 0 3,309 0 0
EXXON MOBIL CORP COM 30231G102 540 8,826 SH   SOLE 0 8,826 0 0
GLADSTONE COML CORP COM 376536108 2,389 92,710 SH   SOLE 0 92,710 0 0
JOHNSON & JOHNSON COM 478160104 353 2,061 SH   SOLE 0 2,061 0 0
JPMORGAN CHASE & CO COM 46625H100 463 2,924 SH   SOLE 0 2,924 0 0
KINDER MORGAN INC COM 49456B101 2,492 157,105 SH   SOLE 0 157,105 0 0
L3HARRIS TECHNOLOGIES INC COM 502431109 289 1,357 SH   SOLE 0 1,357 0 0
LOCKHEED MARTIN CORP COM 539830109 40,090 112,799 SH   SOLE 0 112,799 0 0
LONGVIEW ACQUISITION CORP II COM CL A 54319Q105 153 15,500 SH   SOLE 0 15,500 0 0
LUNA INNOVATIONS COM 550351100 1,092 129,410 SH   SOLE 0 129,410 0 0
MARKEL CORP COM 570535104 102,243 82,855 SH   SOLE 0 82,855 0 0
MASTERCARD INC CL A 57636Q104 32,330 89,975 SH   SOLE 0 89,975 0 0
MICROSOFT CORP COM 594918104 170,480 506,897 SH   SOLE 0 506,897 0 0
MOODY'S CORP COM 615369105 346 885 SH   SOLE 0 885 0 0
MPLX LP COM UNIT REP LTD 55336V100 6,809 230,122 SH   SOLE 0 230,122 0 0
NEW RESIDENTIAL INVT CORP COM NEW 64828T201 275 25,635 SH   SOLE 0 25,635 0 0
NEWTEK BUSINESS CVCS CORP COM NEW 652526203 1,050 38,000 SH   SOLE 0 38,000 0 0
NOVAVAX INC COM 670002401 7,098 49,614 SH   SOLE 0 49,614 0 0
OMNICOM GROUP INC COM 681919106 274 3,738 SH   SOLE 0 3,738 0 0
OPTIMIZERX CORP COM NEW 68401U204 26,768 430,971 SH   SOLE 0 430,971 0 0
O REILLY AUTOMOTIVE INC NEW COM 67103H107 61,457 87,021 SH   SOLE 0 87,021 0 0
PFIZER INC COM 717081103 245 4,146 SH   SOLE 0 4,146 0 0
PNC FINL SVCS GROUP INC COM 693475105 254 1,266 SH   SOLE 0 1,266 0 0
PRIVIA HEALTH GROUP INC COM 74276R102 453 17,500 SH   SOLE 0 17,500 0 0
PROCTER AND GAMBLE CO COM 742718109 363 2,221 SH   SOLE 0 2,221 0 0
SBA COMMUNICATIONS CORP COM 78410G104 2,489 6,398 SH   SOLE 0 6,398 0 0
SPDR GOLD TRUST GOLD SHS 78463V107 302 1,769 SH   SOLE 0 1,769 0 0
SPROTT PHYSICAL GOLD TRUST UNIT 85207H104 558 38,860 SH   SOLE 0 38,860 0 0
SRAX INC CL A 78472M106 154 34,400 SH   SOLE 0 34,400 0 0
STARWOOD PPTY TR INC COM 85571B105 1,773 72,980 SH   SOLE 0 72,980 0 0
STORE CAP CORP COM 862121100 248 7,200 SH   SOLE 0 7,200 0 0
KRAFT HEINZ CO COM 500754106 285 7,925 SH   SOLE 0 7,925 0 0
TRITERRAS INC *W EXP 11/10/2025 G9103H110 23 70,000 SH   SOLE 0 70,000 0 0
TRUPANION INC COM 898202106 297 2,250 SH   SOLE 0 2,250 0 0
UNIVERSAL DISPLAY CORP COM 91347P105 38,099 230,864 SH   SOLE 0 230,864 0 0
VANGUARD INDEX FDS S&P 500 ETF SHS 922908363 866 1,983 SH   SOLE 0 1,983 0 0
VIRGINIA NATL BANKSHARES CORP COM 928031103 409 10,800 SH   SOLE 0 10,800 0 0
VISA INC COM CL A 92826C839 19,283 88,979 SH   SOLE 0 88,979 0 0
WALMART INC COM 931142103 233 1,607 SH   SOLE 0 1,607 0 0
WALGREENS BOOTS ALLIANCE INC COM 931427108 16,978 325,497 SH   SOLE 0 325,497 0 0
DISNEY WALT CO COM DISNEY 254687106 1,005 6,490 SH   SOLE 0 6,490 0 0