| Category | Amount | Net Investment Income | Adjusted Net Income | Disbursements for Charitable Purposes |
|---|---|---|---|---|
| ACCOUNTING FEES | 5,400 | 0 | 5,400 |
| Name of Stock | End of Year Book Value | End of Year Fair Market Value |
|---|---|---|
| CHINA BIOLOGIC | 236,698 | 236,220 |
| AES CORP | 356,478 | 606,888 |
| BERKSHIRE HATHAWAY | 2,842,207 | 8,069,076 |
| CHINA XD PLASTICS | 553,971 | 472,735 |
| COLLECTORS UNIVERSE | 266,769 | 263,900 |
| DUPOINT DE NEMOURS | 1,933,258 | 2,727,780 |
| ENDURANCE INTL | 75,333 | 75,600 |
| GRIDSUM HOLDING INC | 741,887 | 676,732 |
| INGREDION INC | 447,579 | 448,419 |
| MIKROS SYSTEMS | 41,015 | 40,334 |
| PFIZER | 166,681 | 204,111 |
| RUHNN HOLDING | 23,129 | 22,709 |
| SOGOU INC | 168,429 | 154,850 |
| VIATRIS INC | 9,377 | 12,893 |
| PUT/CALL INVESTMENTS | 772,966 | 785,633 |
| Category/ Item | Listed at Cost or FMV | Book Value | End of Year Fair Market Value |
|---|---|---|---|
| BASIS ADJUSTMENT | AT COST | 173,900 | 173,900 |
| Category | Amount | Net Investment Income | Adjusted Net Income | Disbursements for Charitable Purposes |
|---|---|---|---|---|
| MANAGEMENT FEES | 9,558 | 9,558 | 0 |