MICHAEL SLUITER
CIK 1761731 · SVP of Reservoir Engineering · last filed 2026-06-01
MICHAEL SLUITER is a SVP of Reservoir Engineering who has filed 22 SEC Form 4 insider transactions across 1 company since 2019. The most recent filing, for GPOR, was dated Jun 1, 2026. Across all open-market trades the lifetime net is −$5.4M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $1.7M across reported positions.
"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.
$1.72M
1
22
-$5.43M
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| GPOR | SVP of Reservoir Engineering | 10,338 | $166.41 | $1.72M | -$5.43M | 22 | 2026-06-01 |
Recent Filings
22 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-06-01 | GPOR | Grant (A) | +1,307 | $0 | EDGAR |
| 2026-03-06 | GPOR | Sell (S) | −2,055 | -$437.9K | EDGAR |
| 2026-03-03 | GPOR | Mixed | −9,268 | -$2.45M | EDGAR |
| 2026-01-06 | GPOR | Mixed | +9,933 | -$1.65M | EDGAR |
| 2025-05-14 | GPOR | Sell (S) | −2,571 | -$509.1K | EDGAR |
| 2025-03-04 | GPOR | Mixed | +1,212 | -$234.3K | EDGAR |
| 2024-07-23 | GPOR | Tax (F) | −1,227 | -$193.8K | EDGAR |
| 2024-05-28 | GPOR | Sell (S) | −13,723 | -$2.19M | EDGAR |
| 2024-05-21 | GPOR | Mixed | +13,723 | -$1.71M | EDGAR |
| 2024-03-05 | GPOR | Mixed | +2,172 | -$131.6K | EDGAR |