SLUITER MICHAEL
Officer · GPOR
As of 2026-09-16, SLUITER MICHAEL has 12 Form 4 transactions on record across 1 company — 8 in the trailing 12 months.
Everything this person has disclosed to the SEC on Form 4 — across every company they file for — reconstructed from the public record. A filing history, not a tip sheet.
Reconstructed holdings
- Direct $1.7M
- Indirect $0
| GPOR | direct | 10,338 sh | $1.7M |
Reconstructed from this person's own Form 4 filings — the total each filing reported owning afterward, priced at the close on the as-of date shown. A filed position can lag the real one.
Direct and indirect holdings (e.g. through a trust or fund) are tagged separately, as filed.
Trades by company
Filing ledger
| Date | Company | Action | Shares @ price | Value | Ownership Δ | Owned after | Filing |
|---|---|---|---|---|---|---|---|
| 2026-03-05 | GPOR | Sale | 2,055 @ $213.10 | $438K | −18.5% of holding | 9,031 | Form 4 |
| 2026-03-02 | GPOR | Sale | 9,933 @ $210.00 | $2.1M | −45.3% of holding | 11,980 | Form 4 |
| 2025-05-14 | GPOR | Sale | 2,571 @ $198.00 | $509K | −19.8% of holding | 10,421 | Form 4 |
9 award / exercise / gift records — not counted as purchases
| Date | Company | Action | Shares | Owned after | Filing |
|---|---|---|---|---|---|
| 2026-05-28 | GPOR | Award / grant | 1,307 | 10,338 | Form 4 |
| 2026-03-03 | GPOR | Withheld for tax | 894 | 11,086 | Form 4 |
| 2026-03-01 | GPOR | Withheld for tax | 838 | 21,913 | Form 4 |
| 2026-03-01 | GPOR | Award / grant | 2,397 | 22,751 | Form 4 |
| 2026-01-02 | GPOR | Withheld for tax | 7,914 | 20,354 | Form 4 |
| 2026-01-02 | GPOR | Award / grant | 17,847 | 28,268 | Form 4 |
| 2025-03-03 | GPOR | Withheld for tax | 895 | 12,992 | Form 4 |
| 2025-03-01 | GPOR | Withheld for tax | 485 | 13,887 | Form 4 |
| 2025-03-01 | GPOR | Award / grant | 2,592 | 14,372 | Form 4 |
Source: SEC Form 4 filings. Each row links to its original filing.
Research tool, not investment advice — historical frequencies, not recommendations. A product of Marovel Technologies LLC. Full terms.