Williams Companies, Inc. SEC filings WMB
Williams Companies, Inc. has 1,001 filings in SEC EDGAR's recent list, going back to Aug 2, 2016. Its latest annual report, Form ARS, was filed on Mar 18, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Nov 2, 2026, covering the quarter ended Sep 30, 2026. The most recent current report (Form 8-K) was filed on Nov 2, 2026 (other events). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 424B2 | Prospectus | Nov 2, 2026 | — |
| S-3ASR | Automatic shelf registration | Nov 2, 2026 | — |
| 424B2 | Prospectus | Sep 9, 2026 | — |
| FWP | Free writing prospectus | Sep 9, 2026 | — |
| 424B5 | Prospectus supplement | Sep 8, 2026 | — |
| 424B2 | Prospectus | Sep 3, 2026 | — |
| S-8 | Employee stock plan registration | May 20, 2026 | — |
| 424B2 | Prospectus | Jan 6, 2026 | — |
| FWP | Free writing prospectus | Jan 6, 2026 | — |
| 424B5 | Prospectus supplement | Jan 5, 2026 | — |
| 424B2 | Prospectus | Jun 27, 2025 | — |
| FWP | Free writing prospectus | Jun 27, 2025 | — |
| 424B5 | Prospectus supplement | Jun 26, 2025 | — |
| S-8 POS | Filing | Mar 4, 2025 | — |
| 424B2 | Prospectus | Jan 8, 2025 | — |
| FWP | Free writing prospectus | Jan 7, 2025 | — |
| 424B5 | Prospectus supplement | Jan 6, 2025 | — |
| 424B2 | Prospectus | Aug 12, 2024 | — |
| FWP | Free writing prospectus | Aug 9, 2024 | — |
| 424B5 | Prospectus supplement | Aug 8, 2024 | — |
| S-3ASR | Automatic shelf registration | Feb 21, 2024 | — |
| 424B2 | Prospectus | Jan 4, 2024 | — |
| FWP | Free writing prospectus | Jan 3, 2024 | — |
| 424B5 | Prospectus supplement | Jan 2, 2024 | — |
| 424B2 | Prospectus | Aug 9, 2023 | — |
| FWP | Free writing prospectus | Aug 8, 2023 | — |
| 424B5 | Prospectus supplement | Aug 7, 2023 | — |
| 424B2 | Prospectus | Mar 1, 2023 | — |
| FWP | Free writing prospectus | Feb 27, 2023 | — |
| 424B5 | Prospectus supplement | Feb 27, 2023 | — |
| 424B2 | Prospectus | Aug 5, 2022 | — |
| FWP | Free writing prospectus | Aug 3, 2022 | — |
| 424B5 | Prospectus supplement | Aug 3, 2022 | — |
| 424B2 | Prospectus | Oct 7, 2021 | — |
| FWP | Free writing prospectus | Oct 5, 2021 | — |
| 424B5 | Prospectus supplement | Oct 5, 2021 | — |
| 424B2 | Prospectus | Mar 1, 2021 | — |
| FWP | Free writing prospectus | Feb 25, 2021 | — |
| 424B5 | Prospectus supplement | Feb 25, 2021 | — |
| S-3ASR | Automatic shelf registration | Feb 24, 2021 | — |
| 424B2 | Prospectus | May 13, 2020 | — |
| FWP | Free writing prospectus | May 12, 2020 | — |
| 424B5 | Prospectus supplement | May 12, 2020 | — |
| 424B5 | Prospectus supplement | Aug 10, 2018 | — |
| 424B3 | Prospectus | Jul 12, 2018 | — |
| S-4/A | S-4/amendment no. 1 | Jul 3, 2018 | — |
| S-4 | Registration for a merger or exchange | May 30, 2018 | — |
| S-3ASR | Automatic shelf registration | Feb 22, 2018 | — |
| 424B2 | Prospectus | Jan 11, 2017 | — |
| 424B5 | Prospectus supplement | Jan 9, 2017 | — |
Showing 50 filings. 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
- Natural Gas Transmission (SIC 4922)
- Listed as
- WMB (NYSE)
- Fiscal year ends
- December 31
- Incorporated in
- DE
- Headquarters
- Tulsa, OK
- SEC filer status
- Large accelerated filer
- SEC CIK
- 107263
- Former names
- WILLIAMS COMPANIES INC (until Jun 14, 2019)
Other Natural Gas Transmission companies
Source: SEC EDGAR filings. This is company-reported data, not investment advice.