Company filings profile · CIK 0001826321
Gronberg Nathan Mark — SEC filings & insider activity.
Real, source-linked SEC EDGAR activity for Gronberg Nathan Mark: recent filing activity tracked. Latest material 8-K events, insider Form-4 transactions, and periodic reports — monitored for change.
✔ Verified against the public SEC EDGAR filing record as of Oct 7, 2026. Source-linked, daily-refreshed.
Material 8-K events — Gronberg Nathan Mark
8-K disclosures decoded by item code (the material events: agreements, results, control/management changes, impairments, restatements).
| Filed | Event | |
|---|---|---|
| No itemized 8-K in the current window. | ||
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Recent filings
| Filed | Form | Detail | |
|---|---|---|---|
| Oct 7, 2026 | 4 | FORM 4 | ↗ |
| Oct 1, 2026 | 4 | FORM 4 | ↗ |
| Sep 29, 2026 | 4 | FORM 4 | ↗ |
| Oct 1, 2025 | 4 | FORM 4 | ↗ |
| Sep 30, 2025 | 4 | FORM 4 | ↗ |
| Oct 1, 2024 | 4 | FORM 4 | ↗ |
| Sep 26, 2024 | 4 | FORM 4 | ↗ |
| Oct 3, 2023 | 4 | FORM 4 SUBMISSION | ↗ |
| Sep 26, 2023 | 4 | 4 | ↗ |
| Oct 3, 2022 | 4 | FORM 4 SUBMISSION | ↗ |
| Sep 27, 2022 | 4 | FORM 4 SUBMISSION | ↗ |
| Feb 2, 2022 | 4 | FORM 4 | ↗ |
| Sep 30, 2021 | 4 | FORM 4 | ↗ |
| Sep 28, 2021 | 4 | FORM 4 | ↗ |
| Feb 3, 2021 | 4 | FORM 4 | ↗ |
| Oct 1, 2020 | 3/A | FORM 3/A | ↗ |
| Oct 1, 2020 | 3 | FORM 3 | ↗ |
| Oct 1, 2020 | 4 | FORM 4 | ↗ |