| Boston Omaha Corporation - Class A Common Stock(BOC) | CL A | 101044105 | $7.8M | 247,055 | 85.3% |
| Boeing Co. Common Stock(BA) | COM | 097023105 | $1.2M | 5,000 | 13.0% |
| Balchem Corp. Common Stock(BCPC) | COM | 057665200 | $53.0K | 404,066 | 0.6% |
| Mastercard Incorporated Common Stock(MA) | COM | 57636Q104 | $42.8K | 117,170 | 0.5% |
| Texas Pacific Land Trust Common Stock | COM | 882610108 | $29.2K | 18,266 | 0.3% |
| Broadridge Financial Solutions, Inc.Common Stock(BR) | COM | 11133T103 | $6.6K | 40,793 | 0.1% |
| Garmin Ltd. - Common Stock(GRMN) | COM | H2906T109 | $5.9K | 40,755 | 0.1% |
| First Horizon National Corp. Common Stock(FHN) | COM | 320517105 | $1.8K | 102,296 | 0.0% |
| Virtus Investment Partners, Inc. - Common Stock(VRTS) | COM | 92828Q109 | $1.7K | 6,076 | 0.0% |
| Berkshire Hathaway Inc. Common Stock(BRK/A) | CL A | 084670108 | $1.7K | 4 | 0.0% |
| Simulations Plus, Inc. - Common Stock(SLP) | COM | 829214105 | $1.6K | 28,696 | 0.0% |
| Franco-Nevada Corporation Common Stock(FNV) | COM | 351858105 | $1.5K | 10,676 | 0.0% |
| Bel Fuse Inc. - Class B Common Stock(BELFB) | CL B | 077347300 | $974 | 67,634 | 0.0% |
| Dolby Laboratories Common Stock(DLB) | COM | 25659T107 | $853 | 8,679 | 0.0% |
| Lixte Biotechnology Holdings Inc. Common Stock | COM | 539319202 | $505 | 166,667 | 0.0% |
| Sandbridge Acqusition Corp. Common Stock | COM | 799793104 | $499 | 50,000 | 0.0% |
| Metropolitan Bank Holding Corp. Common Stock(MCB) | COM | 591774104 | $470 | 7,811 | 0.0% |
| Flushing Financial Corporation - Common Stock(FFIC) | COM | 343873105 | $466 | 21,745 | 0.0% |
| Bel Fuse Inc. - Class A Common Stock(BELFA) | CL A | 077347201 | $333 | 23,434 | 0.0% |
| Wisdomtree Investments Inc. Common Stock(WT) | COM | 97717P104 | $327 | 52,766 | 0.0% |
| J. W. Mays, Inc. - Common Stock(MAYS) | COM | 578473100 | $324 | 10,415 | 0.0% |
| Black Knight Inc. Common Stock(BKIEUR) | COM | 09215C105 | $222 | 2,852 | 0.0% |
| Pathfinder Bancorp Inc. - Common Stock(PBHC) | COM | 70319R109 | $196 | 12,285 | 0.0% |
| Psychemedics Corp. Common Stock | COM | 744375205 | $139 | 20,000 | 0.0% |
| Frequency Electronics, Inc. - Common Stock(FEIM) | COM | 358010106 | $121 | 12,393 | 0.0% |
| Synchronoss Technologies Inc. Common Stock | COM | 87157B103 | $36 | 10,000 | 0.0% |