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
3M CO COM 88579Y101 13,653 65,710 SH   OTR 1 65,710 0 0
3M CO COM 88579Y101 6,102 29,370 SH   OTR   29,370 0 0
ABBOTT LABS COM 002824100 96 1,200 SH   OTR   1,200 0 0
ABBOTT LABS COM 002824100 124 1,545 SH   OTR 1 1,545 0 0
ABBVIE INC COM 00287Y109 97 1,200 SH   OTR   1,200 0 0
ABBVIE INC COM 00287Y109 122 1,515 SH   OTR 1 1,515 0 0
AIR LEASE CORP CL A 00912X302 9,399 273,630 SH   OTR   273,630 0 0
AIR LEASE CORP CL A 00912X302 16,635 484,288 SH   OTR 1 484,103 0 0
ALPHABET INC CAP STK CL A 02079K305 932 792 SH   OTR   792 0 0
ALPHABET INC CAP STK CL A 02079K305 3,004 2,552 SH   OTR 1 2,547 0 0
ALPHABET INC CAP STK CL C 02079K107 21,739 18,528 SH   OTR   18,528 0 0
ALPHABET INC CAP STK CL C 02079K107 38,177 32,538 SH   OTR 1 32,528 0 0
ALTERYX INC COM CL A 02156B103 6,967 83,070 SH   OTR 1 83,070 0 0
AMERICAN EXPRESS CO COM 025816109 587 5,375 SH   SOLE   5,375 0 0
AMERICAN WTR WKS CO INC NEW COM 030420103 7,140 68,484 SH   OTR   68,484 0 0
AMERICAN WTR WKS CO INC NEW COM 030420103 17,522 168,061 SH   OTR 1 167,926 0 0
AMICUS THERAPEUTICS INC COM 03152W109 6,240 458,830 SH   OTR 1 458,830 0 0
ANTERO MIDSTREAM CORP COM 03676B102 13,955 1,012,690 SH   OTR 1 1,012,690 0 0
ANTERO MIDSTREAM CORP COM 03676B102 7,810 566,763 SH   OTR   566,763 0 0
APPLE INC COM 037833100 1,794 9,447 SH   OTR 1 9,447 0 0
APPLIED MATLS INC COM 038222105 6,803 171,525 SH   OTR   171,525 0 0
APPLIED MATLS INC COM 038222105 11,595 292,365 SH   OTR 1 292,365 0 0
AUDENTES THERAPEUTICS INC COM 05070R104 4,937 126,515 SH   OTR 1 126,515 0 0
AVALARA INC COM 05338G106 10,982 196,840 SH   OTR 1 196,840 0 0
AXOS FINL INC COM 05465C100 5,923 204,535 SH   OTR 1 204,535 0 0
BERKLEY W R CORP COM 084423102 212 2,497 SH   OTR 1 2,497 0 0
BERKSHIRE HATHAWAY INC DEL CL A 084670108 1,807 6 SH   OTR   4 0 0
BERKSHIRE HATHAWAY INC DEL CL A 084670108 301 1 SH   OTR 1 0 0 0
BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 5,429 27,025 SH   OTR   26,650 0 0
BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 12,353 61,489 SH   OTR 1 60,227 0 0
BIO TECHNE CORP COM 09073M104 8,922 44,935 SH   OTR 1 44,935 0 0
BIOTELEMETRY INC COM 090672106 6,420 102,530 SH   OTR 1 102,530 0 0
BLUE BIRD CORP COM 095306106 40,446 2,389,008 SH   OTR 1 2,389,008 0 0
BOEING CO COM 097023105 10,278 26,946 SH   OTR   26,946 0 0
BOEING CO COM 097023105 20,405 53,498 SH   OTR 1 53,498 0 0
BRISTOL MYERS SQUIBB CO COM 110122108 507 10,617 SH   OTR   10,617 0 0
BRISTOL MYERS SQUIBB CO COM 110122108 127 2,672 SH   OTR 1 2,672 0 0
BROADRIDGE FINL SOLUTIONS IN COM 11133T103 8,733 84,225 SH   OTR 1 84,225 0 0
BROADRIDGE FINL SOLUTIONS IN COM 11133T103 5,218 50,325 SH   OTR   50,325 0 0
BROOKFIELD ASSET MGMT INC CL A LTD VT SH 112585104 34,605 741,795 SH   OTR 1 740,795 0 0
BROOKFIELD ASSET MGMT INC CL A LTD VT SH 112585104 18,222 390,604 SH   OTR   390,604 0 0
CARE COM INC COM 141633107 4,998 252,915 SH   OTR 1 252,915 0 0
CAREDX INC COM 14167L103 3,792 120,290 SH   OTR 1 120,290 0 0
CEMEX SAB DE CV NOTE 3.720% 3/1 151290BT9 50,494 50,900,000 PRN   OTR 1 50,900,000 0 0
CHARTER COMMUNICATIONS INC N CL A 16119P108 11,144 32,124 SH   OTR   32,124 0 0
CHARTER COMMUNICATIONS INC N CL A 16119P108 18,273 52,674 SH   OTR 1 52,633 0 0
CHEVRON CORP NEW COM 166764100 399 3,237 SH   OTR 1 450 0 0
CHEVRON CORP NEW COM 166764100 57 465 SH   OTR   465 0 0
CLEVELAND CLIFFS INC DBCV 1.500% 1/1 185899AA9 6,827 5,000,000 PRN   OTR 1 5,000,000 0 0
COGNIZANT TECHNOLOGY SOLUTIO CL A 192446102 10,421 143,840 SH   OTR 1 143,840 0 0
COGNIZANT TECHNOLOGY SOLUTIO CL A 192446102 4,995 68,945 SH   OTR   68,945 0 0
CROWN CASTLE INTL CORP NEW COM 22822V101 11,336 88,559 SH   OTR   88,559 0 0
CROWN CASTLE INTL CORP NEW COM 22822V101 20,052 156,655 SH   OTR 1 156,655 0 0
DANAHER CORPORATION COM 235851102 12,978 98,301 SH   OTR   98,301 0 0
DANAHER CORPORATION COM 235851102 24,997 189,340 SH   OTR 1 189,340 0 0
DIGITAL RLTY TR INC COM 253868103 8,257 69,390 SH   OTR   69,390 0 0
DIGITAL RLTY TR INC COM 253868103 16,062 134,975 SH   OTR 1 134,975 0 0
DOLLAR GEN CORP NEW COM 256677105 7,198 60,335 SH   OTR   60,335 0 0
DOLLAR GEN CORP NEW COM 256677105 13,607 114,055 SH   OTR 1 114,055 0 0
EHEALTH INC COM 28238P109 3,403 54,585 SH   OTR 1 54,585 0 0
ELECTRONICS FOR IMAGING INC NOTE 0.750% 9/0 286082AC6 27,082 27,484,000 PRN   OTR 1 27,484,000 0 0
ENOVA INTL INC COM 29357K103 11,947 523,545 SH   OTR 1 523,545 0 0
ENTERPRISE PRODS PARTNERS L COM 293792107 13,405 460,663 SH   OTR   460,663 0 0
ENTERPRISE PRODS PARTNERS L COM 293792107 20,309 697,908 SH   OTR 1 697,748 0 0
ETSY INC COM 29786A106 10,776 160,305 SH   OTR 1 160,305 0 0
EXXON MOBIL CORP COM 30231G102 871 10,776 SH   OTR   10,776 0 0
EXXON MOBIL CORP COM 30231G102 1,061 13,125 SH   OTR 1 7,403 0 0
EZCORP INC NOTE 2.125% 6/1 302301AB2 59,855 60,035,000 PRN   OTR 1 60,035,000 0 0
EZCORP INC NOTE 2.875% 7/0 302301AF3 18,870 16,835,000 PRN   OTR 1 16,835,000 0 0
FEDEX CORP COM 31428X106 12,401 68,360 SH   OTR 1 68,360 0 0
FEDEX CORP COM 31428X106 6,592 36,335 SH   OTR   36,335 0 0
FIRST REP BK SAN FRANCISCO C COM 33616C100 1,692 16,840 SH   OTR   16,840 0 0
FIRST REP BK SAN FRANCISCO C COM 33616C100 96 952 SH   OTR 1 952 0 0
FLOOR & DECOR HLDGS INC CL A 339750101 3,665 88,915 SH   OTR 1 88,915 0 0
FUNKO INC COM CL A 361008105 6,519 300,155 SH   OTR 1 300,155 0 0
HANNON ARMSTRONG SUST INFR C COM 41068X100 1,806 70,432 SH   OTR   70,432 0 0
HANNON ARMSTRONG SUST INFR C COM 41068X100 5,968 232,765 SH   OTR 1 232,765 0 0
HOLOGIC INC COM 436440101 13,147 271,640 SH   OTR 1 271,640 0 0
HOLOGIC INC COM 436440101 7,165 148,030 SH   OTR   148,030 0 0
HORIZON GLOBAL CORP NOTE 2.750% 7/0 44052WAA2 22,172 36,321,000 PRN   OTR 1 36,321,000 0 0
INSPIRE MED SYS INC COM 457730109 3,123 54,997 SH   OTR 1 54,997 0 0
INSULET CORP COM 45784P101 7,294 76,710 SH   OTR 1 76,710 0 0
INTERNATIONAL BUSINESS MACHS COM 459200101 292 2,064 SH   OTR 1 601 0 0
INTERNATIONAL FLAVORS&FRAGRA COM 459506101 7 58 SH   OTR 1 58 0 0
INTERSECT ENT INC COM 46071F103 4,025 125,190 SH   OTR 1 125,190 0 0
IOVANCE BIOTHERAPEUTICS INC COM 462260100 3,699 388,995 SH   OTR 1 388,995 0 0
ISHARES TR CORE 1 5 YR USD 46432F859 268 5,370 PRN   OTR 1 5,370 0 0
JOHNSON & JOHNSON COM 478160104 6,435 46,033 SH   OTR   46,033 0 0
JOHNSON & JOHNSON COM 478160104 13,187 94,331 SH   OTR 1 91,076 0 0
KODIAK SCIENCES INC COM 50015M109 1,387 212,470 SH   OTR   212,470 0 0
KODIAK SCIENCES INC COM 50015M109 749 114,743 SH   OTR 1 114,743 0 0
LENDINGTREE INC NEW COM 52603B107 2,468 7,020 SH   OTR 1 7,020 0 0
LILLY ELI & CO COM 532457108 2,135 16,451 SH   OTR   16,451 0 0
LILLY ELI & CO COM 532457108 933 7,188 SH   OTR 1 7,188 0 0
LIVERAMP HLDGS INC COM 53815P108 1,143 20,950 SH   OTR 1 20,950 0 0
MAGELLAN MIDSTREAM PRTNRS LP COM UNIT RP LP 559080106 12,575 207,407 SH   OTR 1 203,322 0 0
MAGELLAN MIDSTREAM PRTNRS LP COM UNIT RP LP 559080106 4,693 77,407 SH   OTR   77,407 0 0
MCGRATH RENTCORP COM 580589109 223 3,939 SH   OTR 1 3,939 0 0
MEDIFAST INC COM 58470H101 3,466 27,175 SH   OTR 1 27,175 0 0
MERCK & CO INC COM 58933Y105 65 783 SH   OTR   783 0 0
MERCK & CO INC COM 58933Y105 914 10,995 SH   OTR 1 10,730 0 0
MICRON TECHNOLOGY INC COM 595112103 4,303 104,115 SH   OTR   104,115 0 0
MICRON TECHNOLOGY INC COM 595112103 8,179 197,895 SH   OTR 1 197,895 0 0
MICROSOFT CORP COM 594918104 14,045 119,085 SH   OTR   119,085 0 0
MICROSOFT CORP COM 594918104 28,450 241,220 SH   OTR 1 239,882 0 0
MONOLITHIC PWR SYS INC COM 609839105 10,364 76,495 SH   OTR 1 76,495 0 0
MONOLITHIC PWR SYS INC COM 609839105 6,172 45,555 SH   OTR   45,555 0 0
NAVISTAR INTL CORP NEW NOTE 4.750% 4/1 63934EAS7 89,531 89,419,000 PRN   OTR 1 89,419,000 0 0
NEW RELIC INC COM 64829B100 6,963 70,550 SH   OTR 1 70,550 0 0
NEW YORK TIMES CO CL A 650111107 1,234 37,575 SH   OTR 1 37,575 0 0
NEXTERA ENERGY INC COM 65339F101 12,412 64,205 SH   OTR   64,205 0 0
NEXTERA ENERGY INC COM 65339F101 22,296 115,332 SH   OTR 1 115,332 0 0
NOVARTIS A G SPONSORED ADR 66987V109 10,141 105,482 SH   OTR   105,482 0 0
NOVARTIS A G SPONSORED ADR 66987V109 19,179 199,491 SH   OTR 1 199,451 0 0
NVIDIA CORP COM 67066G104 7,795 43,410 SH   OTR   43,410 0 0
NVIDIA CORP COM 67066G104 14,268 79,460 SH   OTR 1 79,460 0 0
OLD DOMINION FREIGHT LINE IN COM 679580100 3,286 22,755 SH   OTR   22,755 0 0
OLD DOMINION FREIGHT LINE IN COM 679580100 6,691 46,340 SH   OTR 1 46,340 0 0
OSI SYSTEMS INC NOTE 1.250% 9/0 671044AD7 20,478 20,250,000 PRN   OTR 1 20,250,000 0 0
PAYLOCITY HLDG CORP COM 70438V106 707 7,930 SH   OTR 1 7,930 0 0
PIMCO ETF TR 0-5 HIGH YIELD 72201R783 623 6,215 PRN   OTR 1 6,215 0 0
PLANET FITNESS INC CL A 72703H101 14,346 208,760 SH   OTR 1 208,760 0 0
PROCTER AND GAMBLE CO COM 742718109 1,172 11,260 SH   OTR   11,260 0 0
PROCTER AND GAMBLE CO COM 742718109 1,707 16,408 SH   OTR 1 16,408 0 0
QUINSTREET INC COM 74874Q100 7,345 548,561 SH   OTR 1 548,561 0 0
RAMBUS INC DEL NOTE 1.375% 2/0 750917AG1 4,666 5,000,000 PRN   OTR 1 5,000,000 0 0
RAPID7 INC COM 753422104 10,336 204,230 SH   OTR 1 204,230 0 0
SERVICEMASTER GLOBAL HLDGS I COM 81761R109 14,602 312,685 SH   OTR 1 312,685 0 0
SERVICEMASTER GLOBAL HLDGS I COM 81761R109 8,364 179,091 SH   OTR   179,091 0 0
SKYLINE CHAMPION CORPORATION COM 830830105 5,909 311,000 SH   OTR 1 311,000 0 0
SYNOPSYS INC COM 871607107 7,264 63,085 SH   OTR   63,085 0 0
SYNOPSYS INC COM 871607107 12,193 105,885 SH   OTR 1 105,885 0 0
TABULA RASA HEALTHCARE INC COM 873379101 6,145 108,910 SH   OTR 1 108,910 0 0
TELADOC HEALTH INC COM 87918A105 8,304 149,360 SH   OTR 1 149,360 0 0
TELEFLEX INC COM 879369106 13,643 45,152 SH   OTR 1 45,072 0 0
TELEFLEX INC COM 879369106 7,249 23,990 SH   OTR   23,990 0 0
TREX CO INC COM 89531P105 4,666 75,845 SH   OTR 1 75,845 0 0
TUTOR PERINI CORP NOTE 2.875% 6/1 901109AD0 5,745 6,010,000 PRN   OTR 1 6,010,000 0 0
TWILIO INC CL A 90138F102 10,248 79,332 SH   OTR 1 79,332 0 0
TWITTER INC NOTE 0.250% 9/1 90184LAB8 82,563 83,957,000 PRN   OTR 1 83,957,000 0 0
UNILEVER N V N Y SHS NEW 904784709 16,107 276,325 SH   OTR 1 276,325 0 0
UNILEVER N V N Y SHS NEW 904784709 8,815 151,225 SH   SOLE   151,225 0 0
UNION PACIFIC CORP COM 907818108 1,003 6,000 SH   OTR   6,000 0 0
UNION PACIFIC CORP COM 907818108 516 3,084 SH   OTR 1 0 0 0
UNISYS CORP NOTE 5.500% 3/0 909214BS6 16,667 11,916,000 PRN   OTR 1 11,916,000 0 0
US FOODS HLDG CORP COM 912008109 11,741 336,333 SH   OTR   336,333 0 0
US FOODS HLDG CORP COM 912008109 22,824 653,800 SH   OTR 1 653,800 0 0
VERICEL CORP COM 92346J108 5,334 304,645 SH   OTR 1 304,645 0 0
VICI PPTYS INC COM 925652109 5,662 258,775 SH   OTR   258,775 0 0
VICI PPTYS INC COM 925652109 7,253 331,510 SH   OTR 1 331,510 0 0
VISA INC COM CL A 92826C839 8,286 53,050 SH   OTR   53,050 0 0
VISA INC COM CL A 92826C839 16,244 104,005 SH   OTR 1 103,605 0 0
WALGREENS BOOTS ALLIANCE INC COM 931427108 774 12,230 SH   OTR 1 2,134 0 0
WASTE CONNECTIONS INC COM 94106B101 11,179 126,190 SH   OTR   126,190 0 0
WASTE CONNECTIONS INC COM 94106B101 21,760 245,625 SH   OTR 1 245,625 0 0
WELLS FARGO CO NEW COM 949746101 522 10,807 SH   OTR 1 9,755 0 0