Profile
| Role | Director |
|---|---|
| Notability | 20/100 |
Board memberships
- MARA Holdings, Inc.
Updated Jul 16, 2026
MELLINGER DOUGLAS K has filed 1 SEC Form 4 filing across 1 company in the last 90 days — selling. Lifetime open-market sales: $328K.
| Role | Director |
|---|---|
| Notability | 20/100 |
| Date | Ticker | Company | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-06-25 | MARA | MARA Holdings, Inc. | S — Open-market sale | 7.0K | $16.00 | $112K |
| 2026-02-14 | MARA | MARA Holdings, Inc. | A — Grant or award | 82.8K | $0.00 | |
| 2025-11-13 | MARA | MARA Holdings, Inc. | S — Open-market sale | 1.0K | $16.55 | $17K |
| 2025-10-07 | MARA | MARA Holdings, Inc. | S — Open-market sale | 1.0K | $20.71 | $21K |
| 2025-09-10 | MARA | MARA Holdings, Inc. | S — Open-market sale | 1.0K | $16.10 | $16K |
| 2025-08-07 | MARA | MARA Holdings, Inc. | S — Open-market sale | 1.0K | $16.21 | $16K |
| 2025-07-07 | MARA | MARA Holdings, Inc. | S — Open-market sale | 1.0K | $17.42 | $17K |
| 2025-06-06 | MARA | MARA Holdings, Inc. | S — Open-market sale | 1.0K | $16.00 | $16K |
| 2025-05-09 | MARA | MARA Holdings, Inc. | S — Open-market sale | 3.0K | $16.00 | $48K |
| 2024-12-16 | MARA | MARA Holdings, Inc. | S — Open-market sale [10b5-1] | 1.0K | $23.80 | $24K |
| 2024-11-13 | MARA | MARA Holdings, Inc. | S — Open-market sale [10b5-1] | 1.0K | $24.06 | $24K |
| 2024-10-16 | MARA | MARA Holdings, Inc. | S — Open-market sale [10b5-1] | 1.0K | $16.77 | $17K |
MELLINGER DOUGLAS K is a corporate insider — currently tracked as Director of MARA Holdings, Inc. (MARA). InsiderAlpha tracks every SEC Form 4 filing in real time.
1 primary Form 4 filings in the last 90 days, covering 1 company.
Recorded transactions: 0 open-market purchases () and 11 open-market sales ($328K) across all tracked filings.
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
Open the live MELLINGER DOUGLAS K profile on InsiderAlpha for real-time alerts, AI-scored trade ideas, and full transaction history.