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
1STDIBS COM INC COM COM 320551104 5,625 703,944 SH   SOLE   703,944 0 0
3M COMPANY COM 88579Y101 1,558 10,468 SH   SOLE   9,918 0 550
ABBOTT LABS COM 002824100 94,079 794,855 SH   SOLE   767,159 0 27,696
ABBVIE INC. COM COM 00287y109 6,093 37,588 SH   SOLE   36,180 0 1,408
ACCENTURE PLC COM G1151C101 481 1,426 SH   SOLE   1,426 0 0
ADVANCED DRAIN SYS INC COM COM 00790R104 45,478 382,779 SH   SOLE   370,439 0 12,340
AGROFRESH SOLUTIONS COM COM 00856g109 26 13,576 SH   SOLE   13,376 0 200
ALAMOS GOLD INC NEW COM CL A COM 011532108 168 20,000 SH   SOLE   20,000 0 0
ALLIANCE BERNSTEIN HOLDING L.P COM 01881g106 1,071 22,787 SH   SOLE   0 0 22,787
ALLSTATE CORP COM COM 020002101 379 2,733 SH   SOLE   1,592 0 1,141
ALPHABET INC CAP STK CL A COM 02079k305 80,848 29,068 SH   SOLE   27,786 0 1,282
ALPHABET INC CAP STK CL C COM 02079k107 160,063 57,309 SH   SOLE   54,855 0 2,454
ALTRIA GROUP INC COM 02209S103 282 5,405 SH   SOLE   5,405 0 0
AMARIN CORP PLC SPONS ADR NEW COM 023111206 86 26,000 SH   SOLE   26,000 0 0
AMAZON.COM INC COM 023135106 5,676 1,741 SH   SOLE   1,741 0 0
AMERICAN EXPRESS CO COM 025816109 57,300 306,418 SH   SOLE   299,798 0 6,620
AMERICAN TOWER REIT COM COM 03027x100 267 1,063 SH   SOLE   1,063 0 0
AMERIPRISE FIN.INC. COM 03076c106 267 889 SH   SOLE   481 0 408
AMGEN INC COM COM 031162100 1,016 4,200 SH   SOLE   4,200 0 0
ANHEUSER BUSCH INBEV SPONSORED COM 03524a108 715 11,900 SH   SOLE   11,700 0 200
APOLLO GLOBAL MGMT INC COM 03769M106 197,446 3,185,134 SH   SOLE   3,063,258 0 121,876
APPLE INC COM COM 037833100 25,061 143,525 SH   SOLE   141,553 0 1,972
ARMSTRONG WORLD INDS I COM COM 04247x102 21,707 241,158 SH   SOLE   225,223 0 15,935
ASHTEAD GROUP PLC SHS COM G05320109 94,945 1,495,204 SH   SOLE   1,437,838 0 57,366
AUTOM.DATA PROCESSING COM 053015103 914 4,018 SH   SOLE   2,023 0 1,995
AXIS CAP.HOLDGS.LTD. COM G0692U109 4,658 77,035 SH   SOLE   76,635 0 400
BANK NEW YORK MELLON CORP COM 064058100 795 16,013 SH   SOLE   16,013 0 0
BAXTER INTL INC COM 071813109 9,480 122,263 SH   SOLE   113,773 0 8,490
BEAR CREEK MNG CORP COM COM 07380n104 25 30,000 SH   SOLE   30,000 0 0
BERKSHIRE HATHAW.CLA COM 084670108 6,347 12 SH   SOLE   6 0 6
BERKSHIRE HATHAW.CLB COM 084670702 65,422 185,379 SH   SOLE   179,643 0 5,736
BLACK KNIGHT INC COM COM 09215C105 66,815 1,152,174 SH   SOLE   1,113,204 0 38,970
BLACKBERRY LTD COM COM 09228F103 1,662 222,750 SH   SOLE   222,750 0 0
BLACKSTONE INC. COM 09260D107 301,415 2,374,468 SH   SOLE   2,281,818 0 92,650
BLUE OWL CAPITAL INC COM CL A COM 09581B103 13,277 1,047,080 SH   SOLE   1,020,480 0 26,600
BOEING CO COM COM 097023105 460 2,403 SH   SOLE   2,403 0 0
BOSTON SCIENTIFIC CORP COM 101137107 700 15,800 SH   SOLE   15,800 0 0
BRADY CORP CL A COM 104674106 324 7,000 SH   SOLE   7,000 0 0
BRISTOL MYERS SQUIBB COM 110122108 803 10,997 SH   SOLE   6,160 0 4,837
BROOKFIELD ASSET MANAGEMENT-CL COM 112585104 50,738 896,913 SH   SOLE   871,101 0 25,812
CAE INC COM COM 124765108 78,529 3,011,078 SH   SOLE   2,905,503 0 105,575
CANADIAN NATL RAILWAY COM 136375102 1,336 9,960 SH   SOLE   9,960 0 0
CARRIER GLOBAL CORP COM COM 14448C104 417 9,094 SH   SOLE   9,094 0 0
CHEVRON CORPORATION COM 166764100 2,175 13,356 SH   SOLE   13,356 0 0
CISCO SYS INC COM 17275R102 446 8,000 SH   SOLE   8,000 0 0
CITY HLDG CO COM COM 177835105 587 7,459 SH   SOLE   7,459 0 0
COCA-COLA CO COM 191216100 1,751 28,243 SH   SOLE   26,608 0 1,635
COLGATE PALMOLIVE CO COM 194162103 353 4,660 SH   SOLE   4,660 0 0
COMCAST CORP CL A COM 20030N101 1,163 24,841 SH   SOLE   21,249 0 3,592
COMMERCE BANCSHARES COM COM 200525103 1,278 17,847 SH   SOLE   16,820 0 1,027
CONOCOPHILLIPS COM COM 20825C104 1,329 13,288 SH   SOLE   12,577 0 711
COSTAR GROUP INC. COM 22160n109 31,923 479,255 SH   SOLE   459,155 0 20,100
COSTCO WHSL CORP NEW COM 22160K105 6,422 11,153 SH   SOLE   11,153 0 0
CREDIT ACCEP CORP MICH COM COM 225310101 176,374 320,465 SH   SOLE   308,605 0 11,860
CRIMSON WINE GROUP LTD COM COM 22662X100 15,682 1,938,387 SH   SOLE   1,875,087 0 63,300
CVS HEALTH CORP COM COM 126650100 272 2,691 SH   SOLE   2,691 0 0
CYTRX CORP COM PAR COM 232828608 12 33,500 SH   SOLE   33,500 0 0
DANAHER CORP DEL COM 235851102 3,615 12,325 SH   SOLE   12,325 0 0
DEERE & CO COM COM 244199105 2,576 6,200 SH   SOLE   6,200 0 0
DISCOVER FINL SVCS COM COM 254709108 286 2,600 SH   SOLE   2,600 0 0
DISCOVERY INC. SER C COM 25470F302 41,686 1,669,455 SH   SOLE   1,630,380 0 39,075
DISNEY WALT CO COM 254687106 1,820 13,270 SH   SOLE   12,987 0 283
DOMINION ENERGY COM 25746U109 1,592 18,737 SH   SOLE   18,737 0 0
DOVER CORP COM 260003108 22,970 146,401 SH   SOLE   141,470 0 4,931
DUKE ENERGY CORP NEW COM NEW COM 26441c204 15,419 138,085 SH   SOLE   133,669 0 4,416
DUNDEE ENERGY LTD COM COM 26518Q102 0 25,000 SH   SOLE   25,000 0 0
EDWARDS LIFESCIENCES COR COM 28176E108 1,780 15,120 SH   SOLE   15,120 0 0
EMERSON ELEC CO COM 291011104 343 3,500 SH   SOLE   3,500 0 0
ENBRIDGE INC COM COM 29250n105 18,066 391,977 SH   SOLE   377,715 0 14,262
ENSTAR GROUP LTD COM G3075P101 177,625 680,163 SH   SOLE   653,734 0 26,429
ENTERPRISE PRODS PARTNERS LP COM 293792107 69,629 2,697,734 SH   SOLE   2,579,374 0 118,360
EOG RES INC COM COM 26875P101 329 2,760 SH   SOLE   2,760 0 0
EXXON MOBIL CORP COM 30231G102 5,976 72,363 SH   SOLE   70,738 0 1,625
FASTENAL CO COM 311900104 832 14,000 SH   SOLE   14,000 0 0
FEDEX CORP COM 31428X106 10,388 44,896 SH   SOLE   40,926 0 3,970
FISERV INC COM 337738108 50,499 498,022 SH   SOLE   483,727 0 14,295
FOCUS FINL PARTNERS IN COM CL COM 34417P100 7,201 157,443 SH   SOLE   157,443 0 0
FORTIVE CORP COM COM 34959j108 299 4,900 SH   SOLE   4,900 0 0
GALLAGHER ARTHUR J COM 363576109 120,059 687,623 SH   SOLE   662,558 0 25,065
GENERAL ELEC CO COM 369604301 580 6,337 SH   SOLE   6,337 0 0
GENERAL MILLS INC COM COM 370334104 406 6,000 SH   SOLE   6,000 0 0
GLOBALSTAR INC COM 378973408 26,107 17,759,883 SH   SOLE   16,869,763 0 890,120
GLOBE LIFE INC COM COM 37959E102 2,125 21,125 SH   SOLE   21,125 0 0
GRUPO TMM S A B SP ADR 5 A SHS COM 40051d303 154 241,433 SH   SOLE   241,433 0 0
HCA HEALTHCARE INC COM 40412c101 274 1,095 SH   SOLE   1,095 0 0
HELEN OF TROY LTD NEW COM G4388N106 685 3,500 SH   SOLE   3,500 0 0
HESS CORPORATION COM 42809h107 1,070 10,000 SH   SOLE   10,000 0 0
HILTON WORLDWIDE HOLDINGS INC COM 43300a203 45,887 302,404 SH   SOLE   294,504 0 7,900
HOME DEPOT INC COM COM 437076102 5,765 19,261 SH   SOLE   18,794 0 467
HONEYWELL INTL INC COM 438516106 545 2,800 SH   SOLE   2,800 0 0
HUBBELL INC COM COM 443510607 10,874 59,173 SH   SOLE   55,258 0 3,915
IDEX CORP COM 45167R104 431 2,250 SH   SOLE   2,250 0 0
IDEXX LABS INC COM COM 45168D104 1,163 2,125 SH   SOLE   2,125 0 0
ILLINOIS TOOL WKS INC COM 452308109 2,581 12,325 SH   SOLE   12,325 0 0
INTEL CORP COM COM 458140100 223 4,508 SH   SOLE   4,508 0 0
INTL. BUSINESS MACHINES COM 459200101 293 2,250 SH   SOLE   2,250 0 0
JEFFERIES FINANCIAL GROUP COM 47233W109 65,362 1,989,710 SH   SOLE   1,917,926 0 71,784
JOHNSON & JOHNSON COM 478160104 52,113 294,041 SH   SOLE   275,553 0 18,488
JPMORGAN CHASE & CO. COM 46625H100 69,975 513,313 SH   SOLE   491,293 0 22,020
KIMBERLY CLARK CORP COM 494368103 7,359 59,748 SH   SOLE   58,248 0 1,500
KINDER MORGAN INC DEL COM COM 49456b101 728 38,475 SH   SOLE   36,885 0 1,590
KKR & CO INC. COM 48251W104 13,379 228,813 SH   SOLE   218,728 0 10,085
LAB.CP OF AMER HLDGS. COM 50540R409 127,347 482,998 SH   SOLE   468,196 0 14,802
LIBERTY BROADBAND CORP COM SER COM 530307206 232 1,728 SH   SOLE   649 0 1,079
LIBERTY BROADBAND CORP COM SER COM 530307305 727 5,372 SH   SOLE   3,347 0 2,025
LIBERTY MEDIA CORP DEL COM A S COM 531229409 215 4,695 SH   SOLE   3,275 0 1,420
LIBERTY MEDIA CORP DEL COM B S COM 531229508 228 4,705 SH   SOLE   2,600 0 2,105
LIBERTY MEDIA CORP DEL COM C S COM 531229607 905 19,790 SH   SOLE   12,350 0 7,440
LINDE PLC COM COM G5494J103 2,989 9,358 SH   SOLE   9,358 0 0
LOWES COS INC COM COM 548661107 35,521 175,680 SH   SOLE   164,886 0 10,794
LUMEN TECHNOLOGIES COM 550241103 48,271 4,283,156 SH   SOLE   4,109,412 0 173,744
M & T BK CORP COM 55261F104 5,118 30,193 SH   SOLE   26,128 0 4,065
MARKEL CORP COM COM 570535104 65,186 44,187 SH   SOLE   42,117 0 2,070
MASTERCARD INC CL A COM 57636Q104 45,451 127,178 SH   SOLE   122,930 0 4,248
MATADOR RES CO COM COM 576485205 56,424 1,065,004 SH   SOLE   1,035,556 0 29,448
MCDONALDS CORP COM COM 580135101 717 2,900 SH   SOLE   2,900 0 0
MERCK & CO INC COM 58933Y105 13,677 166,690 SH   SOLE   152,579 0 14,111
META PLATFORMS INC CL A COM 30303m102 260 1,170 SH   SOLE   1,170 0 0
METTLER TOLEDO INT'L COM 592688105 3,062 2,230 SH   SOLE   2,230 0 0
MICROSOFT CORP COM 594918104 267,128 866,427 SH   SOLE   830,031 0 36,396
MIMEDX GROUP INC COM COM 602496101 3,550 753,820 SH   SOLE   753,820 0 0
MORGAN STANLEY COM 617446448 219 2,500 SH   SOLE   2,500 0 0
NESTLE SA SPONSORED ADR COM 641069406 2,513 19,315 SH   SOLE   19,315 0 0
NEXTERA ENERGY INC. COM 65339F101 1,781 21,028 SH   SOLE   21,028 0 0
NORDSON CORP COM COM 655663102 1,090 4,800 SH   SOLE   4,800 0 0
NOVARTIS A G SPONSORED ADR COM 66987V109 456 5,200 SH   SOLE   5,200 0 0
NUTRIEN LTD COM COM 67077M108 19,180 184,438 SH   SOLE   181,838 0 2,600
ONEX COPR SUB VTG (ONEXF) COM 68272k103 660 9,850 SH   SOLE   9,850 0 0
ORGANON & CO COMMON STOCK COM 68622V106 222 6,344 SH   SOLE   5,774 0 570
OTIS WORLDWIDE CORP COM COM 68902V107 350 4,547 SH   SOLE   4,547 0 0
PARK AEROSPACE CORP. COM 70014A104 7,573 580,286 SH   SOLE   576,286 0 4,000
PATRIA INVESTMENTS LIM COM CL COM G69451105 3,060 171,819 SH   SOLE   154,819 0 17,000
PAYCHEX INC COM 704326107 546 4,000 SH   SOLE   4,000 0 0
PEPSICO INC COM COM 713448108 4,847 28,958 SH   SOLE   28,668 0 290
PFIZER INC COM 717081103 4,787 92,462 SH   SOLE   92,462 0 0
PNC FINL SVCS GROUP COM COM 693475105 369 2,000 SH   SOLE   2,000 0 0
PROCTER & GAMBLE COM 742718109 8,654 56,638 SH   SOLE   55,243 0 1,395
PROGRESSIVE CORP OHIO COM 743315103 2,599 22,800 SH   SOLE   12,900 0 9,900
PUBLIC SERVICE ENTERPRISE GR COM 744573106 1,148 16,400 SH   SOLE   16,400 0 0
QUALCOMM INC COM COM 747525103 67,680 442,872 SH   SOLE   423,122 0 19,750
RADNET INC COM COM 750491102 60,081 2,685,802 SH   SOLE   2,615,782 0 70,020
RAYTHEON TECHNOLOGIES COM COM 75513E101 1,166 11,770 SH   SOLE   11,770 0 0
RENAISSANCE RE HLDGS COM g7496g103 1,008 6,360 SH   SOLE   6,360 0 0
ROPER TECHNOLOGIES INC COM COM 776696106 104,971 222,287 SH   SOLE   209,464 0 12,823
SAN JUAN BASIN RTUBI COM 798241105 349 39,780 SH   SOLE   39,780 0 0
SCHLUMBERGER LTD COM 806857108 2,921 70,707 SH   SOLE   70,057 0 650
SCHWAB CHARLES CP NEW COM COM 808513105 127,870 1,516,670 SH   SOLE   1,456,510 0 60,160
SENSEONICS HLDGS INC COM COM 81727U105 100 50,741 SH   SOLE   50,741 0 0
SHELL PLC SPON ADS COM 780259305 1,521 27,686 SH   SOLE   27,686 0 0
SHERWIN WILLIAMS CO COM COM 824348106 53,402 213,934 SH   SOLE   204,278 0 9,656
SOUTHERN CO COM COM 842587107 283 3,900 SH   SOLE   3,900 0 0
SYSCO CORP COM COM 871829107 16,452 201,494 SH   SOLE   195,294 0 6,200
TESLA INC COM COM 88160R101 824 765 SH   SOLE   765 0 0
TEVA PHARMAC.IND.ADR COM 881624209 59,443 6,330,420 SH   SOLE   6,202,485 0 127,935
THERMO FISHER SCIENTIF COM COM 883556102 792 1,341 SH   SOLE   1,341 0 0
TOAST INC CL A COM 888787108 364 16,771 SH   SOLE   16,771 0 0
TOWNSQUARE MEDIA INC CL A COM 892231101 5,333 416,950 SH   SOLE   416,950 0 0
TRACTOR SUPPLY CO COM COM 892356106 839 3,595 SH   SOLE   3,595 0 0
TRANSOCEAN LTD COM h8817h100 53 11,600 SH   SOLE   11,600 0 0
TRICON RESIDENTIAL INC COM NPV COM 89612W102 5,600 352,641 SH   SOLE   343,341 0 9,300
UNION PAC CORP COM 907818108 51,437 188,268 SH   SOLE   179,849 0 8,419
UNITED HEALTH GROUP COM 91324P102 312 611 SH   SOLE   611 0 0
US BANCORP DEL COM COM 902973304 1,249 23,502 SH   SOLE   20,652 0 2,850
VCAMPUS CORP COM NEW COM 92240c308 0 59,956 SH   SOLE   59,956 0 0
VERIZON COMM. COM 92343V104 15,396 302,232 SH   SOLE   290,566 0 11,666
VERRICA PHARMACEUTICALS INC COM 92511W108 81 10,000 SH   SOLE   10,000 0 0
VIATRIS INC COM COM 92556V106 116 10,699 SH   SOLE   10,699 0 0
VISA INC COM CL A COM 92826C839 1,626 7,334 SH   SOLE   7,334 0 0
WABTEC CORPORATION COM 929740108 32,973 342,865 SH   SOLE   331,140 0 11,725
WAL MART INC. COM 931142103 18,316 122,994 SH   SOLE   118,394 0 4,600
WALGREENS BOOTS ALLIAN COM COM 931427108 288 6,425 SH   SOLE   6,425 0 0
WALKER & DUNLOP INC COM COM 93148P102 2,858 22,082 SH   SOLE   22,082 0 0
WATERS CORPORATION COM 941848103 73,227 235,919 SH   SOLE   229,252 0 6,667
WEBSTER FINANCIAL CP COM 947890109 230 4,091 SH   SOLE   4,091 0 0
WILEY JOHN & SONS CLA COM 968223206 481 9,078 SH   SOLE   9,078 0 0
WILLIAMS COS INC DEL COM 969457100 17,392 520,562 SH   SOLE   508,362 0 12,200
ZURN WATER SOLUTIONS C COM COM 98983L108 3,546 100,180 SH   SOLE   100,180 0 0
JPMORGAN CHASE AND CO 6 DEP NC PFD 48128B648 807 30,662 SH   SOLE   30,662 0 0
INVESCO QQQ TR UNIT SER 1 EMF 46090E103 218 600 SH   SOLE   600 0 0
ISHARES S&P 500 INDEX FUND EMF 464287200 1,913 4,217 SH   SOLE   4,217 0 0
ISHARES TR RUSSELL MIDCAP EMF 464287499 203 2,600 SH   SOLE   2,600 0 0
SPDR GOLD TRUST EMF 78463V107 2,644 14,634 SH   SOLE   13,334 0 1,300
SPDR TR UNIT SER 1 STANDARD & EMF 78462F103 3,710 8,215 SH   SOLE   7,965 0 250
VANGUARD INDEX FDS S&P 500 ETF EMF 922908363 1,387 3,340 SH   SOLE   3,340 0 0
VANGUARD SMALL-CAP VIPERS EMF 922908751 285 1,341 SH   SOLE   1,341 0 0
VANGUARD INTL EQTY IDX MSCI EM IFUS 922042858 226 4,905 SH   SOLE   4,905 0 0
COLLEGE RETIREMENT EQU EQTY IN MF 194408258 1,400 3,585 SH   SOLE   0 0 3,585
COLLEGE RETIREMENT EQU GROWTH MF 194408183 960 2,680 SH   SOLE   0 0 2,680
COLLEGE RETIREMENT EQU MONEY M MF 194408217 252 9,458 SH   SOLE   0 0 9,458
COLLEGE RETIREMENT EQU STK ACC MF 194408126 1,078 1,457 SH   SOLE   0 0 1,457
TEACHERS INS&ANNUITY A RL EST MF 878094200 394 726 SH   SOLE   0 0 726
COLLEGE RETIREMENT EQU GBL EQT MIUS 194408167 571 2,105 SH   SOLE   0 0 2,105
TEVA CALL JAN 2023 5 STRIKE CALL 881624209 3,252 7,100 SH   SOLE   7,100 0 0
ESTRE AMBIENTAL INC WT EXP 122 WT G3206V118 0 219,348 SH   SOLE   218,698 0 650
COHEN & STEERS QUALITY INC. OA BKC47L109 0 80,719 SH   SOLE   80,719 0 0