Douglas K Mellinger Insider Trading Activity
Douglas K Mellinger has been net-selling over the last 12 months with 0 purchases and 4 sales across 1 company.
MARA is the most-traded position with 4 trades. The largest single transaction was a sale of MARA for $21K on Oct 7, 2025.
Performance Scorecard
Forward stock performance after each transaction by Douglas K Mellinger. Buy returns measure price movement after open-market purchases; sell-avoided measures the loss avoided after open-market sales. Success rate counts trades where the insider's direction was right.
| PERIOD | AVG BUY RETURN | AVG SELL AVOIDED | SUCCESS RATE | TRADES |
|---|---|---|---|---|
| 30 days | — | +7.6% | 67% | 6 |
| 90 days | — | +17.6% | 67% | 6 |
| 120 days | — | +24.5% | 83% | 6 |
Performance based on stock price movement after each transaction date. Past results do not predict future returns. Not financial advice.
Price & Trades
Pro: Trade MarkersMARA · MARA Holdings, Inc.
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| DATE | TICKER | TYPE | SHARES | PRICE | VALUE | Δ OWNED | ROLE | FILING |
|---|---|---|---|---|---|---|---|---|
Nov 10, 2025 | MARA | Sell | 1,000 | $16.55 | $17K | −0.6% | Director | |
Oct 7, 2025 | MARA | Sell | 1,000 | $20.71 | $21K | −0.6% | Director | |
Sep 10, 2025 | MARA | Sell | 1,000 | $16.10 | $16K | −0.6% | Director | |
Aug 7, 2025 | MARA | Sell | 1,000 | $16.21 | $16K | −0.6% | Director | |
Jul 7, 2025 | MARA | Sell | 1,000 | $17.42 | $17K | −0.6% | Director | |
Jun 6, 2025 | MARA | Sell | 1,000 | $16.00 | $16K | −0.6% | Director |
Top Companies Traded
| TICKER | COMPANY | TRADES | TOTAL VOLUME |
|---|---|---|---|
| MARA | MARA Holdings, Inc. | 6 | $103K |
Other insiders at MARA Holdings, Inc.
3 other tracked filers at MARA.