MELLINGER DOUGLAS K (CIK 1066960) reported 11 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-06-24). Recent activity: Sell MARA (7,000 shares), Buy MARA (82,759 shares), Sell MARA (1,000 shares), Sell MARA (1,000 shares), Sell MARA (1,000 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-06-24 | MARA Holdings, Inc. (MARA) | Director | Sell | 7,000 | $112,000 |
| 2026-02-13 | MARA Holdings, Inc. (MARA) | Director | Buy | 82,759 | $0 |
| 2025-11-12 | MARA Holdings, Inc. (MARA) | Director | Sell | 1,000 | $16,550 |
| 2025-10-08 | MARA Holdings, Inc. (MARA) | Director | Sell | 1,000 | $20,710 |
| 2025-09-11 | MARA Holdings, Inc. (MARA) | Director | Sell | 1,000 | $16,100 |
| 2025-08-08 | MARA Holdings, Inc. (MARA) | Director | Sell | 1,000 | $16,210 |
| 2025-07-09 | MARA Holdings, Inc. (MARA) | Director | Sell | 1,000 | $17,420 |
| 2025-06-10 | MARA Holdings, Inc. (MARA) | Director | Sell | 1,000 | $16,000 |
| 2025-05-13 | MARA Holdings, Inc. (MARA) | Director | Sell | 3,000 | $48,000 |
| 2025-02-28 | MARA Holdings, Inc. (MARA) | Director | Buy | 43,103 | $0 |
| 2025-01-15 | MARA Holdings, Inc. (MARA) | Director | Sell | 1,000 | $17,000 |
Source: SEC Form 4 filings · as of 2026-06-24