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
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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
Agrofresh Solutions Warrants Exp 07/31/20 *W EXP 07/31/202 00856G117 1 6,350 SH   OTR   6,350 0 0
Agrofresh Solutions Warrants Exp 07/31/20 *W EXP 07/31/202 00856G117 12 59,141 SH   SOLE   55,441 0 3,700
Alibaba Group ADR SPONSORED ADS 01609W102 3,761 22,825 SH   SOLE   22,825 0 0
Alphabet Inc. Class A CAP STK CL A 02079K305 169 140 SH   OTR   140 0 0
Alphabet Inc. Class A CAP STK CL A 02079K305 3,246 2,689 SH   SOLE   2,484 0 205
Alphabet Inc. Class C CAP STK CL C 02079K107 167 140 SH   OTR   140 0 0
Alphabet Inc. Class C CAP STK CL C 02079K107 1,876 1,572 SH   SOLE   1,392 0 180
American Express Co. COM 025816109 311 2,925 SH   OTR   2,925 0 0
American Express Co. COM 025816109 3,449 32,385 SH   SOLE   30,260 0 2,125
Apollo Global Management LP CL A SHS 037612306 401 11,604 SH   SOLE   11,604 0 0
Apple COM 037833100 807 3,577 SH   SOLE   3,577 0 0
Aptiv PLC SHS G6095L109 512 6,100 SH   SOLE   6,100 0 0
Arch Cap Group LTD ORD G0450A105 728 24,410 SH   SOLE   21,410 0 3,000
AT&T COM 00206R102 433 12,890 SH   SOLE   5,703 0 7,187
Baidu Inc SPON ADR REP A 056752108 977 4,271 SH   SOLE   4,271 0 0
Baxter International COM 071813109 4 50 SH   OTR   50 0 0
Baxter International COM 071813109 1,264 16,350 SH   SOLE   15,875 0 475
Biogen Inc COM 09062X103 283 800 SH   SOLE   800 0 0
Blackstone Group LP COM UNIT LTD 09253U108 114 3,000 SH   OTR   3,000 0 0
Blackstone Group LP COM UNIT LTD 09253U108 3,729 97,928 SH   SOLE   93,303 0 4,625
Boeing COM 097023105 4,295 11,548 SH   SOLE   11,548 0 0
BorgWarner Inc. COM 099724106 73 1,700 SH   OTR   1,700 0 0
BorgWarner Inc. COM 099724106 962 22,490 SH   SOLE   21,820 0 670
Box Inc CL A 10316T104 155 6,475 SH   OTR   6,475 0 0
Box Inc CL A 10316T104 2,497 104,447 SH   SOLE   99,097 0 5,350
Bristol-Myers Squibb COM 110122108 95 1,525 SH   OTR   1,525 0 0
Bristol-Myers Squibb COM 110122108 1,181 19,023 SH   SOLE   14,968 0 4,055
Brookfield Asset Management Class A CL A LTD VT SH 112585104 307 6,887 SH   OTR   6,887 0 0
Brookfield Asset Management Class A CL A LTD VT SH 112585104 4,587 103,009 SH   SOLE   95,789 0 7,220
Brookfield Renewable LP PARTNERSHIP UNIT G16258108 649 21,460 SH   SOLE   20,860 0 600
Canadian National Railway Co. COM 136375102 90 1,000 SH   OTR   1,000 0 0
Canadian National Railway Co. COM 136375102 1,733 19,300 SH   SOLE   19,300 0 0
Canon Inc SPONSORED ADR 138006309 737 23,300 SH   SOLE   23,300 0 0
Care Com Inc COM 141633107 415 18,785 SH   SOLE   18,785 0 0
Celgene Corp COM 151020104 238 2,665 SH   SOLE   2,665 0 0
Cellectis SA SPONSORED ADS 15117K103 651 23,075 SH   SOLE   23,075 0 0
Centurylink Inc COM 156700106 2 71 SH   OTR   71 0 0
Centurylink Inc COM 156700106 1,383 65,249 SH   SOLE   65,069 0 180
Chevron Corp. COM 166764100 404 3,306 SH   OTR   3,306 0 0
Chevron Corp. COM 166764100 2,214 18,102 SH   SOLE   16,036 0 2,066
Cisco Systems COM 17275R102 2,654 54,549 SH   SOLE   54,549 0 0
Colgate-Palmolive Co COM 194162103 580 8,660 SH   SOLE   1,160 0 7,500
Consolidated Edison COM 209115104 38 500 SH   OTR   500 0 0
Consolidated Edison COM 209115104 577 7,575 SH   SOLE   7,175 0 400
Devon Energy Corp COM 25179M103 94 2,350 SH   OTR   2,350 0 0
Devon Energy Corp COM 25179M103 955 23,900 SH   SOLE   21,965 0 1,935
Dover Corporation COM 260003108 80 900 SH   OTR   900 0 0
Dover Corporation COM 260003108 421 4,750 SH   SOLE   4,050 0 700
Enbridge Inc COM 29250N105 81 2,518 SH   OTR   2,518 0 0
Enbridge Inc COM 29250N105 1,072 33,201 SH   SOLE   29,947 0 3,254
Energy Fuels Inc F COM NEW 292671708 33 10,000 SH   SOLE   10,000 0 0
Enstar Group LTD SHS G3075P101 484 2,322 SH   SOLE   2,322 0 0
Estre Ambiental Inc SHS G3206V100 50 8,350 SH   OTR   8,350 0 0
Estre Ambiental Inc SHS G3206V100 424 70,535 SH   SOLE   64,015 0 6,520
Estre Ambiental Inc WTS *W EXP 12/21/202 G3206V118 1 4,175 SH   OTR   4,175 0 0
Estre Ambiental Inc WTS *W EXP 12/21/202 G3206V118 12 35,507 SH   SOLE   32,247 0 3,260
ExxonMobil Corp COM 30231G102 870 10,236 SH   SOLE   6,906 0 3,330
Fiat Chrysler Automobiles NV SHS N31738102 218 12,475 SH   OTR   12,475 0 0
Fiat Chrysler Automobiles NV SHS N31738102 2,681 153,099 SH   SOLE   143,679 0 9,420
Forest City Realty Trust- A COM CL A 345605109 253 10,065 SH   OTR   10,065 0 0
Forest City Realty Trust- A COM CL A 345605109 1,331 53,045 SH   SOLE   53,010 0 35
Gilead Sciences Inc. COM 375558103 232 3,000 SH   SOLE   3,000 0 0
Home Depot COM 437076102 145 700 SH   OTR   700 0 0
Home Depot COM 437076102 5,865 28,315 SH   SOLE   24,915 0 3,400
Honeywell Intl Inc COM 438516106 518 3,114 SH   SOLE   3,114 0 0
Johnson & Johnson COM 478160104 304 2,200 SH   OTR   2,200 0 0
Johnson & Johnson COM 478160104 1,861 13,469 SH   SOLE   13,019 0 450
JPMorgan Chase & Co COM 46625H100 181 1,600 SH   OTR   1,600 0 0
JPMorgan Chase & Co COM 46625H100 5,090 45,105 SH   SOLE   45,105 0 0
JPMorgan Chase & Co. Warrants Exp 10/28/18 *W EXP 10/28/201 46634E114 73 1,000 SH   OTR   1,000 0 0
JPMorgan Chase & Co. Warrants Exp 10/28/18 *W EXP 10/28/201 46634E114 420 5,775 SH   SOLE   5,775 0 0
Laboratory Corp Of America Holdings COM NEW 50540R409 505 2,905 SH   SOLE   2,905 0 0
Markel Corp. COM 570535104 345 290 SH   OTR   290 0 0
Markel Corp. COM 570535104 3,041 2,559 SH   SOLE   2,254 0 305
Marriott Vacations COM 57164Y107 394 3,515 SH   SOLE   3,515 0 0
Martin Marietta Matr COM 573284106 218 1,200 SH   SOLE   1,200 0 0
Matador Resources Co COM 576485205 112 3,400 SH   OTR   3,400 0 0
Matador Resources Co COM 576485205 2,551 77,200 SH   SOLE   75,500 0 1,700
Maxim Integrated Prods Inc COM 57772K101 225 3,992 SH   SOLE   3,992 0 0
Merck & Co. Inc. COM 58933Y105 449 6,290 SH   OTR   6,290 0 0
Merck & Co. Inc. COM 58933Y105 4,993 69,905 SH   SOLE   64,225 0 5,680
Microsoft Corp. COM 594918104 1,004 8,775 SH   OTR   8,775 0 0
Microsoft Corp. COM 594918104 8,400 73,442 SH   SOLE   67,407 0 6,035
Momo Inc ADR 60879B107 526 12,000 SH   SOLE   12,000 0 0
Nextera Energy Inc COM 65339F101 94 560 SH   OTR   560 0 0
Nextera Energy Inc COM 65339F101 658 3,925 SH   SOLE   3,925 0 0
Oaktree Cap Group LLC UNIT CL A 674001201 422 10,187 SH   SOLE   9,862 0 325
Obsidian Energy Ltd. COM 674482104 1,043 1,098,135 SH   SOLE   1,098,135 0 0
Oneok Inc COM 682680103 270 3,986 SH   OTR   3,986 0 0
Oneok Inc COM 682680103 1,180 17,411 SH   SOLE   17,411 0 0
Philip Morris International, Inc. COM 718172109 103 1,250 SH   OTR   1,250 0 0
Philip Morris International, Inc. COM 718172109 1,174 14,199 SH   SOLE   12,969 0 1,230
Points Intl LTD Com New COM NEW 730843208 163 11,614 SH   SOLE   11,614 0 0
Procter & Gamble COM 742718109 41 495 SH   OTR   495 0 0
Procter & Gamble COM 742718109 302 3,630 SH   SOLE   3,630 0 0
Qualcomm Inc. COM 747525103 322 4,475 SH   OTR   4,475 0 0
Qualcomm Inc. COM 747525103 4,266 59,225 SH   SOLE   56,350 0 2,875
Radnet Inc COM 750491102 454 30,181 SH   SOLE   30,181 0 0
Schlumberger Ltd. COM 806857108 112 1,825 SH   OTR   1,825 0 0
Schlumberger Ltd. COM 806857108 3,572 58,157 SH   SOLE   57,582 0 575
Stmicroelectronics F Sponsored ADR NY REGISTRY 861012102 711 38,778 SH   SOLE   38,778 0 0
Syros Pharmaceutical COM 87184Q107 190 15,925 SH   SOLE   15,925 0 0
Teva Pharmaceutical Industries SPONSORED ADR 881624209 707 32,800 SH   SOLE   32,800 0 0
Total SA ADR SPONSORED ADR 89151E109 59 900 SH   OTR   900 0 0
Total SA ADR SPONSORED ADR 89151E109 231 3,550 SH   SOLE   2,450 0 1,100
U.S. Bancorp COM NEW 902973304 90 1,700 SH   OTR   1,700 0 0
U.S. Bancorp COM NEW 902973304 1,282 24,114 SH   SOLE   22,414 0 1,700
Union Pacific Corp. COM 907818108 562 3,450 SH   OTR   3,450 0 0
Union Pacific Corp. COM 907818108 4,702 28,875 SH   SOLE   28,875 0 0
USG Corp. COM NEW 903293405 152 3,500 SH   OTR   3,500 0 0
USG Corp. COM NEW 903293405 3,898 90,010 SH   SOLE   87,685 0 2,325
Verizon COM 92343V104 11 200 SH   OTR   200 0 0
Verizon COM 92343V104 560 10,487 SH   SOLE   7,872 0 2,615
Visa Inc COM CL A 92826C839 180 1,200 SH   SOLE   1,200 0 0
Wayfair Inc- Class A CL A 94419L101 316 2,140 SH   OTR   2,140 0 0
Wayfair Inc- Class A CL A 94419L101 3,103 21,010 SH   SOLE   20,320 0 690
Wells Fargo & Co. COM 949746101 1,589 30,225 SH   SOLE   30,225 0 0
Weyerhaeuser Co REIT COM 962166104 293 9,075 SH   OTR   9,075 0 0
Weyerhaeuser Co REIT COM 962166104 4,591 142,275 SH   SOLE   134,600 0 7,675
Woodward, Inc. COM 980745103 493 6,100 SH   OTR   6,100 0 0
Woodward, Inc. COM 980745103 5,765 71,300 SH   SOLE   68,440 0 2,860
Yandex NV SHS CLASS A N97284108 263 8,000 SH   SOLE   8,000 0 0
Yelp Inc CL A 985817105 5 100 SH   OTR   100 0 0
Yelp Inc CL A 985817105 907 18,431 SH   SOLE   18,031 0 400