DJCO's three largest insider shareholders as of May 23, 2026 are Charles T Munger (Chairman, 46.28K shares), Mary Murphy Conlin (Director, 215 shares), John Frank (Director, 115 shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Charles T Munger | Chairman | 46,280 | 0 | 17 Jun, 2022 |
| John Frank | - | 115 | 0 | 17 Dec, 2025 |
| Mary Murphy Conlin | - | 215 | 0 | 17 Dec, 2025 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 16 Dec, 2025 | Mary Murphy Conlin | Common Stock | A | 50 | $0.00 | 215 | D | A |
| 16 Dec, 2025 | John Frank | Common Stock | A | 50 | $0.00 | 115 | D | A |
| 16 Jun, 2022 | Charles T Munger | Common Stock | D | 3,720 | $0.00 | 46,280 | D | J |
| 16 Jun, 2022 | Charles T Munger | Common Stock | D | 3,720 | $0.00 | 46,280 | D | J |
| 22 Dec, 2020 | Gerald L Salzman | Common | D | 8,286 | $332.00 | 0 | D | S |
| 22 Dec, 2020 | Gerald L Salzman | Common | D | 8,286 | $332.00 | 0 | D | S |
| 11 Dec, 2020 | Gerald L Salzman | Common Stock | D | 1,800 | $300.00 | 8,286 | D | S |
| 11 Dec, 2020 | Gerald L Salzman | Common Stock | D | 1,800 | $300.00 | 8,286 | D | S |
| 09 Dec, 2020 | Gerald L Salzman | Common Stock | D | 346 | $278.00 | 10,940 | D | S |
| 09 Dec, 2020 | Gerald L Salzman | Common Stock | D | 346 | $278.00 | 10,940 | D | S |
| 10 Dec, 2020 | Gerald L Salzman | Common Stock | D | 854 | $282.00 | 10,086 | D | S |
| 10 Dec, 2020 | Gerald L Salzman | Common Stock | D | 854 | $282.00 | 10,086 | D | S |
| 12 Nov, 2020 | Gerald L Salzman | Common Stock | D | 286 | $285.00 | 11,286 | D | S |
| 12 Nov, 2020 | Gerald L Salzman | Common Stock | D | 286 | $285.00 | 11,286 | D | S |
| 09 Nov, 2020 | Gerald L Salzman | Common Stock | D | 1,577 | $281.00 | 12,225 | D | S |
| 09 Nov, 2020 | Gerald L Salzman | Common Stock | D | 1,577 | $281.00 | 12,225 | D | S |
| 10 Nov, 2020 | Gerald L Salzman | Common Stock | D | 653 | $281.00 | 11,572 | D | S |
| 10 Nov, 2020 | Gerald L Salzman | Common Stock | D | 653 | $281.00 | 11,572 | D | S |
| 05 Nov, 2020 | Gerald L Salzman | Common Stock | D | 36 | $280.00 | 14,005 | D | S |
| 05 Nov, 2020 | Gerald L Salzman | Common Stock | D | 36 | $280.00 | 14,005 | D | S |