Douglas K. Mellinger, a director at MARA Holdings, Inc. ($MARA), sold shares on the open market seven times over the past year, totaling about $151,000. His most recent sale occurred on November 10, 2025. These sales rank him 8,972nd among 11,678 insiders in our database by total value sold, well below the average of $8.6 million across 6.4 transactions per insider. Mellinger made no open market purchases of $MARA shares in the last 365 days.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Feb. 13, 2026 | MARA Holdings, Inc. | $MARA | MELLINGER DOUGLAS K | Director | A | Common Stock | 82759 | $0.00 | 253,618.0000 | 470,126,290 | 48.44% | 0.02% |
| Nov. 10, 2025 | MARA Holdings, Inc. | $MARA | MELLINGER DOUGLAS K | Director | S | Common Stock | 1000 | $16.55 | 170,859.0000 | 470,126,290 | 0.58% | 0.00% |
| Oct. 7, 2025 | MARA Holdings, Inc. | $MARA | MELLINGER DOUGLAS K | Director | S | Common Stock | 1000 | $20.71 | 171,859.0000 | 470,126,290 | 0.58% | 0.00% |
| Sept. 10, 2025 | MARA Holdings, Inc. | $MARA | MELLINGER DOUGLAS K | Director | S | Common Stock | 1000 | $16.10 | 172,859.0000 | 311,841,347 | 0.58% | 0.00% |
| Aug. 7, 2025 | MARA Holdings, Inc. | $MARA | MELLINGER DOUGLAS K | Director | S | Common Stock | 1000 | $16.21 | 173,859.0000 | 311,841,347 | 0.57% | 0.00% |
| July 7, 2025 | MARA Holdings, Inc. | $MARA | MELLINGER DOUGLAS K | Director | S | Common Stock | 1000 | $17.42 | 174,859.0000 | 311,841,347 | 0.57% | 0.00% |
| June 6, 2025 | MARA Holdings, Inc. | $MARA | MELLINGER DOUGLAS K | Director | S | Common Stock | 1000 | $16.00 | 175,859.0000 | 311,841,347 | 0.57% | 0.00% |
| May 9, 2025 | MARA Holdings, Inc. | $MARA | MELLINGER DOUGLAS K | Director | S | Common Stock | 3000 | $16.00 | 176,859.0000 | 311,841,347 | 1.67% | 0.00% |
| Feb. 28, 2025 | MARA Holdings, Inc. | $MARA | MELLINGER DOUGLAS K | Director | A | Common Stock | 43103 | $0.00 | 179,859.0000 | 311,841,347 | 31.52% | 0.01% |
| Jan. 13, 2025 | MARA Holdings, Inc. | $MARA | MELLINGER DOUGLAS K | Director | S | Common Stock | 1000 | $17.00 | 137,756.0000 | 311,841,347 | 0.72% | 0.00% |
| Dec. 12, 2024 | MARA Holdings, Inc. | $MARA | MELLINGER DOUGLAS K | Director | S | Common Stock | 1000 | $23.80 | 138,756.0000 | 294,942,685 | 0.72% | 0.00% |
| Nov. 12, 2024 | MARA Holdings, Inc. | $MARA | MELLINGER DOUGLAS K | Director | S | Common Stock | 1000 | $24.06 | 139,756.0000 | 294,942,685 | 0.71% | 0.00% |
| Oct. 14, 2024 | MARA Holdings, Inc. | $MARA | MELLINGER DOUGLAS K | Director | S | Common Stock | 1000 | $16.77 | 140,756.0000 | 294,942,685 | 0.71% | 0.00% |
| Sept. 12, 2024 | MARA Holdings, Inc. | $MARA | MELLINGER DOUGLAS K | Director | S | Common Stock | 1000 | $16.00 | 141,756.0000 | 192,293,277 | 0.70% | 0.00% |
| Aug. 12, 2024 | MARA Holdings, Inc. | $MARA | MELLINGER DOUGLAS K | Director | S | Common Stock | 1000 | $16.05 | 142,756.0000 | 192,293,277 | 0.70% | 0.00% |
| May 1, 2024 | MARA Holdings, Inc. | $MARA | MELLINGER DOUGLAS K | Director | A | Common Stock | 28887 | $0.00 | 143,756.0000 | 192,293,277 | 25.15% | 0.02% |
| Jan. 31, 2024 | MARA Holdings, Inc. | $MARA | MELLINGER DOUGLAS K | Director | A | Common Stock | 62317 | $0.00 | 114,869.0000 | 192,293,277 | 118.58% | 0.03% |
| Feb. 3, 2023 | MARA Holdings, Inc. | $MARA | MELLINGER DOUGLAS K | Director | S | Common Stock | 10000 | $7.25 | 52,552.0000 | 113,467,837 | 15.99% | 0.01% |
| Jan. 16, 2023 | MARA Holdings, Inc. | $MARA | MELLINGER DOUGLAS K | Director | C | Common Stock | 32552 | $7.68 | 52,552.0000 | 113,467,837 | 162.76% | 0.03% |
| Jan. 16, 2023 | MARA Holdings, Inc. | $MARA | MELLINGER DOUGLAS K | Director | A | RSUs | 32552 | $7.68 | 32,552.0000 | 113,467,837 | 9999.99% | 0.03% |
| Jan. 16, 2023 | MARA Holdings, Inc. | $MARA | MELLINGER DOUGLAS K | Director | D | RSUs | 32552 | $7.68 | 0.0000 | 113,467,837 | 100.00% | 0.03% |