Tidewater Inc SEC filings TDGMW
Tidewater Inc has 1,000 filings in SEC EDGAR's recent list, going back to Feb 9, 2015. Its latest annual report, Form ARS, was filed on Apr 28, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Aug 3, 2026, covering the quarter ended Jun 30, 2026. The most recent current report (Form 8-K) was filed on Oct 5, 2026 (material agreement, new debt). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 4/A | Primary document | Sep 18, 2026 | Sep 16, 2026 |
| 4 | Insider transaction | Sep 17, 2026 | Sep 16, 2026 |
| 144 | Notice of proposed sale | Sep 16, 2026 | — |
| 4 | Insider transaction | Sep 3, 2026 | Sep 2, 2026 |
| 4 | Insider transaction | Sep 3, 2026 | Sep 2, 2026 |
| 144 | Notice of proposed sale | Sep 2, 2026 | — |
| 144 | Notice of proposed sale | Sep 1, 2026 | — |
| 4 | Insider transaction | Aug 20, 2026 | Aug 20, 2026 |
| 4 | Insider transaction | Aug 14, 2026 | Aug 12, 2026 |
| 144 | Notice of proposed sale | Aug 12, 2026 | — |
| 4 | Insider transaction | Aug 11, 2026 | Aug 10, 2026 |
| 144 | Notice of proposed sale | Aug 11, 2026 | — |
| 144 | Notice of proposed sale | Jul 22, 2026 | — |
| 144 | Notice of proposed sale | Jun 25, 2026 | — |
| 4 | Insider transaction | Jun 18, 2026 | Jun 16, 2026 |
| 4 | Insider transaction | Jun 18, 2026 | Jun 16, 2026 |
| 4 | Insider transaction | Jun 18, 2026 | Jun 16, 2026 |
| 4 | Insider transaction | Jun 18, 2026 | Jun 16, 2026 |
| 4 | Insider transaction | Jun 18, 2026 | Jun 16, 2026 |
| 4 | Insider transaction | Jun 18, 2026 | Jun 16, 2026 |
| 4 | Insider transaction | Jun 12, 2026 | Jun 12, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 15, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Apr 29, 2026 | — |
| 4 | Insider transaction | Apr 2, 2026 | Apr 1, 2026 |
| 4 | Insider transaction | Apr 2, 2026 | Apr 1, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Mar 27, 2026 | — |
| 4 | Insider transaction | Mar 23, 2026 | Mar 23, 2026 |
| 4 | Insider transaction | Mar 23, 2026 | Mar 23, 2026 |
| 4 | Insider transaction | Mar 23, 2026 | Mar 23, 2026 |
| 4 | Insider transaction | Mar 23, 2026 | Mar 23, 2026 |
| 4 | Insider transaction | Mar 20, 2026 | Mar 18, 2026 |
| 4 | Insider transaction | Mar 20, 2026 | Mar 18, 2026 |
| 4 | Insider transaction | Mar 20, 2026 | Mar 18, 2026 |
| 4 | Insider transaction | Mar 20, 2026 | Mar 18, 2026 |
| 4 | Insider transaction | Mar 17, 2026 | Mar 17, 2026 |
| 144 | Notice of proposed sale | Mar 12, 2026 | — |
| 4 | Insider transaction | Mar 6, 2026 | Mar 5, 2026 |
| 4 | Insider transaction | Mar 6, 2026 | Mar 5, 2026 |
| 144 | Notice of proposed sale | Mar 5, 2026 | — |
| 144 | Notice of proposed sale | Mar 5, 2026 | — |
| 4 | Insider transaction | Feb 23, 2026 | Feb 23, 2026 |
| 144 | Notice of proposed sale | Feb 23, 2026 | — |
| 4 | Insider transaction | Feb 11, 2026 | Feb 11, 2026 |
| 144 | Notice of proposed sale | Feb 11, 2026 | — |
| 4 | Insider transaction | Jan 6, 2026 | Jan 2, 2026 |
| 4 | Insider transaction | Jan 5, 2026 | Jan 2, 2026 |
| 4 | Insider transaction | Jan 5, 2026 | Jan 2, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Nov 14, 2025 | — |
| 4 | Insider transaction | Oct 3, 2025 | Oct 1, 2025 |
| 4 | Insider transaction | Oct 2, 2025 | Oct 1, 2025 |
| 144 | Notice of proposed sale | Aug 7, 2025 | — |
| 4 | Insider transaction | Aug 6, 2025 | Aug 5, 2025 |
| 144 | Notice of proposed sale | Aug 5, 2025 | — |
| 4 | Insider transaction | Jul 8, 2025 | Jul 8, 2025 |
| 144 | Notice of proposed sale | Jul 8, 2025 | — |
| 4 | Insider transaction | Jul 3, 2025 | Jul 1, 2025 |
| 4 | Insider transaction | Jul 2, 2025 | Jul 1, 2025 |
| 4 | Insider transaction | Jun 9, 2025 | Jun 5, 2025 |
| 4/A | Filing | Jun 9, 2025 | Jun 5, 2025 |
| 4 | Insider transaction | Jun 9, 2025 | Jun 5, 2025 |
| 4 | Insider transaction | Jun 9, 2025 | Jun 5, 2025 |
| 4 | Insider transaction | Jun 9, 2025 | Jun 5, 2025 |
| 4 | Insider transaction | Jun 9, 2025 | Jun 5, 2025 |
| 4 | Insider transaction | Jun 9, 2025 | Jun 5, 2025 |
| 4 | Insider transaction | Jun 9, 2025 | Jun 5, 2025 |
| 4 | Insider transaction | Jun 5, 2025 | Jun 3, 2025 |
| 4 | Insider transaction | Jun 2, 2025 | May 30, 2025 |
| SCHEDULE 13G | Ownership over 5% (passive) | May 14, 2025 | — |
| 4 | Insider transaction | Apr 3, 2025 | Apr 1, 2025 |
| 4 | Insider transaction | Mar 25, 2025 | Mar 22, 2025 |
| 4 | Insider transaction | Mar 25, 2025 | Mar 22, 2025 |
| 4 | Insider transaction | Mar 25, 2025 | Mar 22, 2025 |
| 4 | Insider transaction | Mar 25, 2025 | Mar 22, 2025 |
| 4 | Insider transaction | Mar 25, 2025 | Mar 22, 2025 |
| 4 | Insider transaction | Mar 20, 2025 | Mar 18, 2025 |
| 4 | Insider transaction | Mar 20, 2025 | Mar 18, 2025 |
| 4 | Insider transaction | Mar 20, 2025 | Mar 18, 2025 |
| 4 | Insider transaction | Mar 20, 2025 | Mar 18, 2025 |
| 4 | Insider transaction | Mar 20, 2025 | Mar 18, 2025 |
| 4 | Insider transaction | Mar 14, 2025 | Mar 13, 2025 |
| 4 | Insider transaction | Mar 12, 2025 | Mar 10, 2025 |
| 4 | Insider transaction | Mar 12, 2025 | Mar 10, 2025 |
| 4 | Insider transaction | Mar 12, 2025 | Jan 2, 2025 |
| 4 | Insider transaction | Mar 12, 2025 | Mar 10, 2025 |
| 4 | Insider transaction | Mar 12, 2025 | Mar 10, 2025 |
| 4 | Insider transaction | Mar 6, 2025 | Mar 5, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 12, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 5, 2025 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Feb 4, 2025 | — |
| 4 | Insider transaction | Jan 3, 2025 | Jan 2, 2025 |
| SCHEDULE 13D | Ownership over 5% (active) | Dec 20, 2024 | — |
| 4 | Insider transaction | Dec 18, 2024 | Dec 17, 2024 |
| 4 | Insider transaction | Dec 16, 2024 | Dec 13, 2024 |
| 4 | Insider transaction | Dec 16, 2024 | Dec 13, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 14, 2024 | — |
| SC 13G | Ownership over 5% (passive) | Nov 12, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Oct 4, 2024 | — |
| 4 | Insider transaction | Oct 2, 2024 | Oct 1, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Jul 10, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Jul 8, 2024 | — |
| 4 | Insider transaction | Jul 1, 2024 | Jul 1, 2024 |
| SC 13G | Ownership over 5% (passive) | Jun 25, 2024 | — |
| 3 | Initial insider ownership | Jun 20, 2024 | Jun 10, 2024 |
| 4 | Insider transaction | Jun 13, 2024 | Jun 11, 2024 |
| 4 | Insider transaction | Jun 13, 2024 | Jun 12, 2024 |
| 144 | Notice of proposed sale | Jun 12, 2024 | — |
| 144 | Notice of proposed sale | Jun 12, 2024 | — |
| 4/A | Primary document | Jun 11, 2024 | Jun 6, 2024 |
| 144 | Notice of proposed sale | Jun 11, 2024 | — |
| 4 | Insider transaction | Jun 10, 2024 | Jun 6, 2024 |
| 4 | Insider transaction | Jun 10, 2024 | Jun 6, 2024 |
| 4 | Insider transaction | Jun 10, 2024 | Jun 6, 2024 |
| 4 | Insider transaction | Jun 10, 2024 | Jun 6, 2024 |
| 4 | Insider transaction | Jun 10, 2024 | Jun 6, 2024 |
| 4 | Insider transaction | Jun 10, 2024 | Jun 6, 2024 |
| 4 | Insider transaction | Jun 10, 2024 | Jun 6, 2024 |
| 144 | Notice of proposed sale | Jun 10, 2024 | — |
| 144 | Notice of proposed sale | Jun 10, 2024 | — |
| 4 | Insider transaction | May 24, 2024 | May 22, 2024 |
| 144 | Notice of proposed sale | May 24, 2024 | — |
| 144 | Notice of proposed sale | May 22, 2024 | — |
| 4 | Insider transaction | May 22, 2024 | May 20, 2024 |
| SC 13D/A | Amended ownership over 5% (active) | May 21, 2024 | — |
| 4 | Insider transaction | May 17, 2024 | May 15, 2024 |
| 4/A | Primary document | May 17, 2024 | May 8, 2024 |
| 4 | Insider transaction | May 10, 2024 | May 8, 2024 |
| 4 | Insider transaction | May 9, 2024 | May 9, 2024 |
| 4 | Insider transaction | May 9, 2024 | May 8, 2024 |
| 4 | Insider transaction | May 9, 2024 | May 7, 2024 |
| 4 | Insider transaction | May 9, 2024 | May 7, 2024 |
| 144 | Notice of proposed sale | May 9, 2024 | — |
| 144 | Notice of proposed sale | May 9, 2024 | — |
| 144 | Notice of proposed sale | May 8, 2024 | — |
| 144 | Notice of proposed sale | May 8, 2024 | — |
| 144 | Notice of proposed sale | May 7, 2024 | — |
| 144 | Notice of proposed sale | May 7, 2024 | — |
| 4 | Insider transaction | Apr 2, 2024 | Apr 1, 2024 |
| 4 | Insider transaction | Mar 25, 2024 | Mar 21, 2024 |
| 4 | Insider transaction | Mar 25, 2024 | Mar 21, 2024 |
| 4 | Insider transaction | Mar 25, 2024 | Mar 21, 2024 |
| 4 | Insider transaction | Mar 25, 2024 | Mar 21, 2024 |
| 4 | Insider transaction | Mar 12, 2024 | Mar 11, 2024 |
| 4 | Insider transaction | Mar 12, 2024 | Mar 11, 2024 |
| 4 | Insider transaction | Mar 12, 2024 | Mar 11, 2024 |
| 4 | Insider transaction | Mar 12, 2024 | Mar 11, 2024 |
| SC 13D/A | Amended ownership over 5% (active) | Mar 8, 2024 | — |
| 4 | Insider transaction | Mar 7, 2024 | Mar 5, 2024 |
| 4 | Insider transaction | Mar 7, 2024 | Mar 5, 2024 |
| 4 | Insider transaction | Mar 7, 2024 | Mar 5, 2024 |
| 4 | Insider transaction | Mar 7, 2024 | Mar 5, 2024 |
| 144 | Notice of proposed sale | Mar 5, 2024 | — |
| 144 | Notice of proposed sale | Mar 5, 2024 | — |
| 144 | Notice of proposed sale | Mar 5, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 13, 2024 | — |
| SC 13G | Ownership over 5% (passive) | Feb 12, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 29, 2024 | — |
| 4 | Insider transaction | Jan 3, 2024 | Jan 2, 2024 |
| 4 | Insider transaction | Oct 3, 2023 | Oct 2, 2023 |
| SC 13G/A | Amended ownership over 5% (passive) | Sep 11, 2023 | — |
| 4 | Insider transaction | Sep 11, 2023 | Sep 7, 2023 |
| 4 | Insider transaction | Sep 7, 2023 | Sep 5, 2023 |
| 4 | Insider transaction | Aug 16, 2023 | Aug 14, 2023 |
| 144 | Notice of proposed sale | Aug 14, 2023 | — |
| 4 | Insider transaction | Aug 11, 2023 | Aug 10, 2023 |
| 4 | Insider transaction | Aug 2, 2023 | Jul 31, 2023 |
| 4/A | Primary document | Jul 28, 2023 | Jul 25, 2023 |
| 4/A | Primary document | Jul 28, 2023 | Jul 25, 2023 |
| 4 | Insider transaction | Jul 27, 2023 | Jul 25, 2023 |
| 144 | Notice of proposed sale | Jul 10, 2023 | — |
| 4 | Insider transaction | Jul 5, 2023 | Jul 3, 2023 |
| 144 | Notice of proposed sale | Jun 30, 2023 | — |
| 4 | Insider transaction | Jun 30, 2023 | Jun 26, 2023 |
| 4 | Insider transaction | Jun 28, 2023 | Jun 26, 2023 |
| 4 | Insider transaction | Jun 28, 2023 | Jun 26, 2023 |
| 4 | Insider transaction | Jun 28, 2023 | Jun 26, 2023 |
| 4 | Insider transaction | Jun 28, 2023 | Jun 26, 2023 |
| 4 | Insider transaction | Jun 28, 2023 | Jun 26, 2023 |
| 4 | Insider transaction | Jun 28, 2023 | Jun 26, 2023 |
| 4 | Insider transaction | Apr 24, 2023 | Apr 20, 2023 |
| 4 | Insider transaction | Apr 24, 2023 | Apr 20, 2023 |
| 4 | Insider transaction | Apr 24, 2023 | Apr 20, 2023 |
| 4 | Insider transaction | Apr 24, 2023 | Apr 20, 2023 |
| 4 | Insider transaction | Apr 4, 2023 | Apr 3, 2023 |
| 4 | Insider transaction | Apr 4, 2023 | Apr 3, 2023 |
| 4 | Insider transaction | Apr 4, 2023 | Apr 3, 2023 |
| 4 | Insider transaction | Apr 4, 2023 | Apr 3, 2023 |
| 4 | Insider transaction | Mar 24, 2023 | Mar 22, 2023 |
| 4 | Insider transaction | Mar 24, 2023 | Mar 22, 2023 |
| 4 | Insider transaction | Mar 24, 2023 | Mar 22, 2023 |
| 4 | Insider transaction | Mar 24, 2023 | Mar 22, 2023 |
| 4 | Insider transaction | Mar 21, 2023 | Mar 17, 2023 |
| 4 | Insider transaction | Mar 20, 2023 | Mar 16, 2023 |
| 4 | Insider transaction | Mar 20, 2023 | Mar 16, 2023 |
| 4 | Insider transaction | Mar 20, 2023 | Mar 16, 2023 |
| 4 | Insider transaction | Mar 20, 2023 | Mar 16, 2023 |
| 4 | Insider transaction | Mar 13, 2023 | Mar 10, 2023 |
| 4 | Insider transaction | Mar 13, 2023 | Mar 10, 2023 |
| 4 | Insider transaction | Mar 13, 2023 | Mar 10, 2023 |
| 4 | Insider transaction | Mar 13, 2023 | Mar 10, 2023 |
Showing 200 filings, the most recent 200. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.
New to this? Read What Are SEC Filings? 10-K, 10-Q, 8-K and Other Forms Explained.
Company profile
- Industry
- Water Transportation (SIC 4400)
- Listed as
- TDW (NYSE), TDDWW (OTC), TDGMW (OTC)
- Fiscal year ends
- December 31
- Incorporated in
- DE
- Headquarters
- Houston, TX
- SEC filer status
- Large accelerated filer
- SEC CIK
- 98222
Other Water Transportation companies
- Royal Caribbean Cruises Ltd RCL
- Carnival Corp Ltd. CCL
- Viking Holdings Ltd VIK
- Norwegian Cruise Line Holdings Ltd. NCLH
- Kirby Corp KEX
- Matson, Inc. MATX
- International Seaways, Inc. INSW
- Golar LNG Ltd GLNG
Source: SEC EDGAR filings. This is company-reported data, not investment advice.