Insider · CIK 0001066960
Douglas K Mellinger
director
Files at MARA (MARA Holdings, Inc.). First filing Oct 16, 2024, latest Nov 12, 2025.
Track record
Not enough history
Fewer than three past buys with six months of prices.
Median 6-month excess
-
after past buys, n = 0
Hit rate
-
past buys that beat the index over 6 months
Open-market trades
0 / 10
$0 bought, $216k sold
Where the trades landed
Last year at the company this insider has traded most, with each buy and sell on the bar it happened.
MARA: MARA Holdings, Inc.
MARAOct 9, 2026 · close 9.65
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™
Signals
This insider’s open-market buys and sells, scored.
| Score | Company | Value | Holdings | Price context | Filed |
|---|---|---|---|---|---|
| 10Weak | MARA Holdings, Inc. | $17k 1,000 shares | -1% | +48% from low-43% from high | |
| 10Weak | MARA Holdings, Inc. | $21k 1,000 shares | -1% | +92% from low-26% from high | |
| 10Weak | MARA Holdings, Inc. | $16k 1,000 shares | -1% | +51% from low-42% from high | |
| 10Weak | MARA Holdings, Inc. | $16k 1,000 shares | -1% | +52% from low-42% from high | |
| 10Weak | MARA Holdings, Inc. | $17k 1,000 shares | -1% | +59% from low-39% from high | |
| 10Weak | MARA Holdings, Inc. | $16k 1,000 shares | -1% | +50% from low-42% from high | |
| 17Weak | MARA Holdings, Inc. | $48k 3,000 shares | -2% | +50% from low-43% from high | |
| 10Weak | MARA Holdings, Inc. | $24k 1,000 shares | -1% | - | |
| 10Weak | MARA Holdings, Inc. | $24k 1,000 shares | -1% | - | |
| 10Weak | MARA Holdings, Inc. | $17k 1,000 shares | -1% | - |
Transactions
Every row this insider has filed, newest first.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Nov 10, 2025 | MARA MARA Holdings, Inc. | SOpen-market sale Common Stock10b5-1 | -1,000 | $16.55 | $17k | 170,859 | Nov 12, 2025 |
| Oct 7, 2025 | MARA MARA Holdings, Inc. | SOpen-market sale Common Stock10b5-1 | -1,000 | $20.71 | $21k | 171,859 | Oct 8, 2025 |
| Sep 10, 2025 | MARA MARA Holdings, Inc. | SOpen-market sale Common Stock10b5-1 | -1,000 | $16.10 | $16k | 172,859 | Sep 11, 2025 |
| Aug 7, 2025 | MARA MARA Holdings, Inc. | SOpen-market sale Common Stock10b5-1 | -1,000 | $16.21 | $16k | 173,859 | Aug 8, 2025 |
| Jul 7, 2025 | MARA MARA Holdings, Inc. | SOpen-market sale Common Stock10b5-1 | -1,000 | $17.42 | $17k | 174,859 | Jul 9, 2025 |
| Jun 6, 2025 | MARA MARA Holdings, Inc. | SOpen-market sale Common Stock10b5-1 | -1,000 | $16.00 | $16k | 175,859 | Jun 10, 2025 |
| May 9, 2025 | MARA MARA Holdings, Inc. | SOpen-market sale Common Stock10b5-1 | -3,000 | $16.00 | $48k | 176,859 | May 13, 2025 |
| Dec 12, 2024 | MARA MARA Holdings, Inc. | SOpen-market sale Common Stock10b5-1 | -1,000 | $23.80 | $24k | 138,756 | Dec 16, 2024 |
| Nov 12, 2024 | MARA MARA Holdings, Inc. | SOpen-market sale Common Stock10b5-1 | -1,000 | $24.06 | $24k | 139,756 | Nov 13, 2024 |
| Oct 14, 2024 | MARA MARA Holdings, Inc. | SOpen-market sale Common Stock10b5-1 | -1,000 | $16.77 | $17k | 140,756 | Oct 16, 2024 |
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.