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
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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 FIGI (to the nearest dollar) PRN AMT PRN CALL DISCRETION MANAGER SOLE SHARED NONE
ABBOTT LABS COM 002824100 BBG000B9ZXB4 208,720 1,535 SH   SOLE 0 1,535 0 0
ABBVIE INC COM 00287Y109 BBG0025Y4RY4 271,376 1,462 SH   SOLE 0 1,462 0 0
ADAPTIVE BIOTECHNOLOGIES COR COM 00650F109 BBG001J2PFF5 889,652 76,365 SH   SOLE 0 76,365 0 0
ADOBE INC COM 00724F101 BBG000BB5006 29,248,128 75,600 SH   SOLE 0 75,600 0 0
AES CORP COM 00130H105 BBG000C23KJ3 2,003,905 190,485 SH   SOLE 0 190,485 0 0
ALPHABET INC CAP STK CL C 02079K107 BBG009S3NB30 1,910,564 10,770 SH   SOLE 0 10,770 0 0
AMAZON COM INC COM 023135106 BBG000BVPV84 87,796,148 400,183 SH   SOLE 0 400,183 0 0
AMENTUM HOLDINGS INC COM 023939101 BBG01NY7B734 21,139,261 895,352 SH   SOLE 0 895,352 0 0
AMERICAN INTL GROUP INC COM NEW 026874784 BBG000BBDZG3 1,815,364 21,210 SH   SOLE 0 21,210 0 0
AMERICAN TOWER CORP NEW CL A 03027X100 BBG000B9XYV2 95,698,391 432,985 SH   SOLE 0 432,985 0 0
APPLE INC COM 037833100 BBG000B9XRY4 49,637,355 241,933 SH   SOLE 0 241,933 0 0
ARISTA NETWORKS INC COM SHS 040413205 BBG000N2HDY5 344,785 3,370 SH   SOLE 0 3,370 0 0
ATOMERA INC COM 04965B100 BBG00D88BWP5 2,896,821 574,766 SH   SOLE 0 574,766 0 0
AXOS FINANCIAL INC. COM 05465C100 BBG000QPHD08 1,580,872 20,790 SH   SOLE 0 20,790 0 0
BANK AMERICA CORP COM 060505104 BBG000BCTLF6 1,167,858 24,680 SH   SOLE 0 24,680 0 0
BERKSHIRE HATHAWAY INC DEL CL A 084670108 BBG000DWCFL4 4,372,800 6 SH   SOLE 0 6 0 0
BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 BBG000DWG505 54,935,414 113,089 SH   SOLE 0 113,089 0 0
BLACK STONE MINERALS LP COM UNIT 09225M101 BBG008B5CF29 966,612 73,900 SH   SOLE 0 73,900 0 0
BOK FINL CORP COM NEW 05561Q201 BBG000CFZ003 12,252,565 125,500 SH   SOLE 0 125,500 0 0
BRIGHTSPIRE CAPITAL INC COM CL A 10949T109 BBG00JVRRQF1 1,120,595 221,900 SH   SOLE 0 221,900 0 0
BROOKFIELD CORP CL A LTD VT SH 11271J107 BBG000C9KL89 927,750 15,000 SH   SOLE 0 15,000 0 0
BROOKFIELD INFRAST PARTNERS LP INT UNIT G16252101 BBG000B9Y8D8 772,879 23,071 SH   SOLE 0 23,071 0 0
BURKE HERBERT FINL SVCS CORP COM 12135Y108 BBG019X33P07 206,069 3,450 SH   SOLE 0 3,450 0 0
CARMAX INC COM 143130102 BBG000BLMZK6 15,117,950 224,936 SH   SOLE 0 224,936 0 0
CCC INTELLIGENT SOLUTIONS HL COM 12510Q100 BBG00WNSJM49 620,326 65,922 SH   SOLE 0 65,922 0 0
COHERENT CORP COM 19247G107 BBG000BLW102 545,073 6,110 SH   SOLE 0 6,110 0 0
COPART INC COM 217204106 BBG000BM9RH1 56,664,319 1,154,765 SH   SOLE 0 1,154,765 0 0
COSTCO WHSL CORP NEW COM 22160K105 BBG000F6H8W8 494,970 500 SH   SOLE 0 500 0 0
CROWN CASTLE INC COM 22822V101 BBG000FV1Z23 332,845 3,240 SH   SOLE 0 3,240 0 0
CYTOSORBENTS CORP COM NEW 23283X206 BBG000C3P8V0 6,474,928 5,058,537 SH   SOLE 0 5,058,537 0 0
DENNYS CORP COM 24869P104 BBG000BC09P3 125,829 30,690 SH   SOLE 0 30,690 0 0
DIGITALBRIDGE GROUP INC CL A NEW 25401T603 BBG00D30HGP6 1,212,471 117,147 SH   SOLE 0 117,147 0 0
DOLLAR TREE INC COM 256746108 BBG000BSC0K9 283,254 2,860 SH   SOLE 0 2,860 0 0
ENERGY RECOVERY INC COM 29270J100 BBG000VFBBC1 13,520,727 1,057,960 SH   SOLE 0 1,057,960 0 0
ENERGY TRANSFER LP COM UT LTD PTN 29273V100 BBG000BM2FL9 7,974,154 439,832 SH   SOLE 0 439,832 0 0
ENOVIX CORPORATION COM 293594107 BBG00YC53854 490,943 47,480 SH   SOLE 0 47,480 0 0
ENTERPRISE PRODS PARTNERS LP COM 293792107 BBG000BR3012 3,891,073 125,478 SH   SOLE 0 125,478 0 0
EQUINIX INC COM 29444U700 BBG000MBDGM6 2,180,383 2,741 SH   SOLE 0 2,741 0 0
EXXON MOBIL CORP COM 30231G102 BBG000GZQ728 899,591 8,345 SH   SOLE 0 8,345 0 0
GE AEROSPACE COM NEW 369604301 BBG000BK6MB5 238,086 925 SH   SOLE 0 925 0 0
GLADSTONE COMMERCIAL CORP COM 376536108 BBG000M2NYQ2 959,938 66,988 SH   SOLE 0 66,988 0 0
INTEL CORP COM 458140100 BBG000C0G1D1 277,603 12,393 SH   SOLE 0 12,393 0 0
KINDER MORGAN INC DEL COM 49456B101 BBG0019JZ882 4,286,079 145,785 SH   SOLE 0 145,785 0 0
L3HARRIS TECHNOLOGIES INC COM 502431109 BBG000BLGFJ9 340,390 1,357 SH   SOLE 0 1,357 0 0
LAMAR ADVERTISING CO NEW CL A 512816109 BBG000FGMKY1 468,450 3,860 SH   SOLE 0 3,860 0 0
LOCKHEED MARTIN CORP COM 539830109 BBG000C1BW00 34,020,064 73,455 SH   SOLE 0 73,455 0 0
LULULEMON ATHLETICA INC COM 550021109 BBG000R8ZVD1 516,737 2,175 SH   SOLE 0 2,175 0 0
LUNA INNOVATIONS COM 550351100 BBG000GP4ZR5 105,386 119,080 SH   SOLE 0 119,080 0 0
MARKEL GROUP INC COM 570535104 BBG000FC7366 97,448,883 48,789 SH   SOLE 0 48,789 0 0
MASTERCARD INCORPORATED CL A 57636Q104 BBG000F1ZSQ2 36,756,241 65,410 SH   SOLE 0 65,410 0 0
MICROSOFT CORP COM 594918104 BBG000BPH459 132,105,542 265,587 SH   SOLE 0 265,587 0 0
MPLX LP COM UNIT REP LTD 55336V100 BBG0035TJGV4 9,424,630 182,967 SH   SOLE 0 182,967 0 0
NEWTEK BUSINESS SVCS CORP COM NEW 652526203 BBG000BH37H2 426,384 37,800 SH   SOLE 0 37,800 0 0
OPTIMIZERX CORP COM NEW 68401U204 BBG000HKQH91 1,043,010 77,260 SH   SOLE 0 77,260 0 0
ORACLE CORP COM 68389X105 BBG000BQLTW7 295,151 1,350 SH   SOLE 0 1,350 0 0
OREILLY AUTOMOTIVE INC COM 67103H107 BBG000BGYWY6 71,562,071 793,987 SH   SOLE 0 793,987 0 0
PACCAR INC COM 693718108 BBG000BQVTF5 213,885 2,250 SH   SOLE 0 2,250 0 0
PNC FINL SVCS GROUP INC COM 693475105 BBG000BRD0D8 236,008 1,266 SH   SOLE 0 1,266 0 0
PRIVIA HEALTH GROUP INC COM 74276R102 BBG00ZXYXVP9 845,135 36,745 SH   SOLE 0 36,745 0 0
RTX CORPORATION COM 75513E101 BBG000BW8S60 238,597 1,634 SH   SOLE 0 1,634 0 0
SBA COMMUNICATIONS CORP NEW CL A 78410G104 BBG000D2M0Z7 14,669,574 62,466 SH   SOLE 0 62,466 0 0
SPDR GOLD TRUST GOLD SHS 78463V107 BBG000CRF6Q8 644,411 2,114 SH   SOLE 0 2,114 0 0
SPROTT PHYSICAL GOLD TRUST UNIT 85207H104 BBG000Q83F79 1,528,859 60,310 SH   SOLE 0 60,310 0 0
STARWOOD PPTY TR INC COM 85571B105 BBG000M1J270 1,922,566 95,793 SH   SOLE 0 95,793 0 0
TARGA RES CORP COM 87612G101 BBG0015XMW40 278,876 1,602 SH   SOLE 0 1,602 0 0
TRIPLEPOINT VENTURE GROWTH B COM 89677Y100 BBG005GXFKJ7 70,100 10,000 SH   SOLE 0 10,000 0 0
UNIVERSAL DISPLAY CORP COM 91347P105 BBG000BLRP41 34,467,711 223,150 SH   SOLE 0 223,150 0 0
VANGUARD INDEX FDS S&P 500 ETF SHS 922908363 BBG0015VYNT4 1,096,298 1,930 SH   SOLE 0 1,930 0 0
VIRGINIA NATL BANKSHARES CORP COM 928031103 BBG000C49RT7 399,600 10,800 SH   SOLE 0 10,800 0 0
VISA INC COM CL A 92826C839 BBG000PSKYX7 14,892,207 41,944 SH   SOLE 0 41,944 0 0
WALGREENS BOOTS ALLIANCE INC COM 931427108 BBG000BWLMJ4 590,531 51,440 SH   SOLE 0 51,440 0 0
WALMART INC COM 931142103 BBG000BWXBC2 350,835 3,588 SH   SOLE 0 3,588 0 0
DISNEY WALT CO COM 254687106 BBG000BH4R78 328,130 2,646 SH   SOLE 0 2,646 0 0
WAYSTAR HLDG CORP COM 946784105 BBG01JRQSDB9 26,894,217 658,043 SH   SOLE 0 658,043 0 0