Michael Sluiter, SVP of Reservoir Engineering at Gulfport Energy Corp ($GPOR), sold shares on the open market three times over the past year, totaling $3.03 million. His most recent sale occurred on March 5, 2026. These sales rank him 2700th among 11,678 insiders in our database by total value sold, compared to an average of $8.59 million per insider and 6.37 transactions. Sluiter made no open market purchases 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| March 5, 2026 | GULFPORT ENERGY CORP | $GPOR | SLUITER MICHAEL | SVP of Reservoir Engineering | S | Common Stock | 2055 | $213.10 | 9,031.0000 | 19,500,000 | 18.54% | 0.01% |
| March 3, 2026 | GULFPORT ENERGY CORP | $GPOR | SLUITER MICHAEL | SVP of Reservoir Engineering | F | Common Stock | 894 | $209.13 | 11,086.0000 | 19,500,000 | 7.46% | 0.00% |
| March 2, 2026 | GULFPORT ENERGY CORP | $GPOR | SLUITER MICHAEL | SVP of Reservoir Engineering | S | Common Stock | 9933 | $210.00 | 11,980.0000 | 19,500,000 | 45.33% | 0.05% |
| March 1, 2026 | GULFPORT ENERGY CORP | $GPOR | SLUITER MICHAEL | SVP of Reservoir Engineering | F | Common Stock | 838 | $208.66 | 21,913.0000 | 19,500,000 | 3.68% | 0.00% |
| March 1, 2026 | GULFPORT ENERGY CORP | $GPOR | SLUITER MICHAEL | SVP of Reservoir Engineering | A | Common Stock | 2397 | $0.00 | 22,751.0000 | 19,500,000 | 11.78% | 0.01% |
| Jan. 2, 2026 | GULFPORT ENERGY CORP | $GPOR | SLUITER MICHAEL | SVP of Reservoir Engineering | A | Common Stock | 17847 | $0.00 | 28,268.0000 | 19,500,000 | 171.26% | 0.09% |
| Jan. 2, 2026 | GULFPORT ENERGY CORP | $GPOR | SLUITER MICHAEL | SVP of Reservoir Engineering | F | Common Stock | 7914 | $207.99 | 20,354.0000 | 19,500,000 | 28.00% | 0.04% |
| May 14, 2025 | GULFPORT ENERGY CORP | $GPOR | SLUITER MICHAEL | SVP of Reservoir Engineering | S | Common Stock | 2571 | $198.00 | 10,421.0000 | 17,816,000 | 19.79% | 0.01% |
| March 1, 2025 | GULFPORT ENERGY CORP | $GPOR | SLUITER MICHAEL | SVP of Reservoir Engineering | A | Common Stock | 2592 | $0.00 | 14,372.0000 | 17,800,000 | 22.00% | 0.01% |
| March 1, 2025 | GULFPORT ENERGY CORP | $GPOR | SLUITER MICHAEL | SVP of Reservoir Engineering | F | Common Stock | 485 | $169.80 | 13,887.0000 | 17,800,000 | 3.37% | 0.00% |
| March 3, 2025 | GULFPORT ENERGY CORP | $GPOR | SLUITER MICHAEL | SVP of Reservoir Engineering | F | Common Stock | 895 | $169.80 | 12,992.0000 | 17,800,000 | 6.44% | 0.01% |
| July 21, 2024 | GULFPORT ENERGY CORP | $GPOR | SLUITER MICHAEL | SVP of Reservoir Engineering | F | Common Stock | 1227 | $157.92 | 11,780.0000 | 18,137,000 | 9.43% | 0.01% |
| May 24, 2024 | GULFPORT ENERGY CORP | $GPOR | SLUITER MICHAEL | SVP of Reservoir Engineering | S | Common Stock | 5000 | $159.00 | 21,730.0000 | 18,089,000 | 18.71% | 0.03% |
| May 28, 2024 | GULFPORT ENERGY CORP | $GPOR | SLUITER MICHAEL | SVP of Reservoir Engineering | S | Common Stock | 8723 | $159.79 | 13,007.0000 | 18,089,000 | 40.14% | 0.05% |
| May 17, 2024 | GULFPORT ENERGY CORP | $GPOR | SLUITER MICHAEL | SVP of Reservoir Engineering | F | Common Stock | 10827 | $158.37 | 26,730.0000 | 18,089,000 | 28.83% | 0.06% |
| May 17, 2024 | GULFPORT ENERGY CORP | $GPOR | SLUITER MICHAEL | SVP of Reservoir Engineering | A | Common Stock | 24550 | $0.00 | 37,557.0000 | 18,089,000 | 188.74% | 0.14% |
| March 3, 2024 | GULFPORT ENERGY CORP | $GPOR | SLUITER MICHAEL | SVP of Reservoir Engineering | F | Common Stock | 927 | $142.00 | 13,007.0000 | 18,300,000 | 6.65% | 0.01% |
| March 1, 2024 | GULFPORT ENERGY CORP | $GPOR | SLUITER MICHAEL | SVP of Reservoir Engineering | A | Common Stock | 3099 | $0.00 | 13,934.0000 | 18,300,000 | 28.60% | 0.02% |