Eversource Energy SEC filings ES
Eversource Energy has 1,002 filings in SEC EDGAR's recent list, going back to Dec 2, 2014. Its latest annual report, Form ARS, was filed on Mar 27, 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 Nov 4, 2026 (results of operations, regulation fd disclosure). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 424B5 | Prospectus supplement | Feb 24, 2026 | — |
| FWP | Free writing prospectus | Feb 23, 2026 | — |
| FWP | Free writing prospectus | Feb 23, 2026 | — |
| 424B3 | Prospectus | Feb 23, 2026 | — |
| 424B5 | Prospectus supplement | Oct 16, 2025 | — |
| FWP | Free writing prospectus | Oct 15, 2025 | — |
| 424B3 | Prospectus | Oct 15, 2025 | — |
| 424B2 | Prospectus | May 30, 2025 | — |
| S-3ASR | Automatic shelf registration | Apr 3, 2025 | — |
| 424B5 | Prospectus supplement | Apr 16, 2024 | — |
| FWP | Free writing prospectus | Apr 15, 2024 | — |
| FWP | Free writing prospectus | Apr 15, 2024 | — |
| 424B3 | Prospectus | Apr 15, 2024 | — |
| S-3ASR | Automatic shelf registration | Apr 1, 2024 | — |
| 424B5 | Prospectus supplement | Jan 17, 2024 | — |
| FWP | Free writing prospectus | Jan 16, 2024 | — |
| FWP | Free writing prospectus | Jan 16, 2024 | — |
| 424B3 | Prospectus | Jan 16, 2024 | — |
| 424B5 | Prospectus supplement | Nov 9, 2023 | — |
| FWP | Free writing prospectus | Nov 8, 2023 | — |
| 424B3 | Prospectus | Nov 8, 2023 | — |
| S-8 | Employee stock plan registration | Oct 11, 2023 | — |
| 424B5 | Prospectus supplement | May 9, 2023 | — |
| FWP | Free writing prospectus | May 9, 2023 | — |
| FWP | Free writing prospectus | May 9, 2023 | — |
| FWP | Free writing prospectus | May 9, 2023 | — |
| 424B3 | Prospectus | May 8, 2023 | — |
| 424B5 | Prospectus supplement | Mar 2, 2023 | — |
| FWP | Free writing prospectus | Mar 1, 2023 | — |
| 424B3 | Prospectus | Mar 1, 2023 | — |
| 424B5 | Prospectus supplement | Jun 23, 2022 | — |
| FWP | Free writing prospectus | Jun 22, 2022 | — |
| FWP | Free writing prospectus | Jun 22, 2022 | — |
| 424B3 | Prospectus | Jun 22, 2022 | — |
| 424B3 | Prospectus | May 17, 2022 | — |
| S-4/A | Filing | May 12, 2022 | — |
| 424B2 | Prospectus | May 11, 2022 | — |
| S-4/A | Filing | May 6, 2022 | — |
| S-4 | Registration for a merger or exchange | Apr 13, 2022 | — |
| S-3ASR | Automatic shelf registration | Apr 13, 2022 | — |
| 424B5 | Prospectus supplement | Feb 23, 2022 | — |
| FWP | Free writing prospectus | Feb 22, 2022 | — |
| FWP | Free writing prospectus | Feb 22, 2022 | — |
| 424B3 | Prospectus | Feb 22, 2022 | — |
| 424B5 | Prospectus supplement | Aug 11, 2021 | — |
| FWP | Free writing prospectus | Aug 10, 2021 | — |
| FWP | Free writing prospectus | Aug 10, 2021 | — |
| 424B3 | Prospectus | Aug 10, 2021 | — |
| 424B3 | Prospectus | Jun 25, 2021 | — |
| S-4/A | Filing | Jun 17, 2021 | — |
| S-4 | Registration for a merger or exchange | Jun 4, 2021 | — |
| S-3ASR | Automatic shelf registration | Apr 2, 2021 | — |
| 424B5 | Prospectus supplement | Mar 9, 2021 | — |
| FWP | Free writing prospectus | Mar 8, 2021 | — |
| 424B3 | Prospectus | Mar 8, 2021 | — |
| 424B5 | Prospectus supplement | Aug 12, 2020 | — |
| FWP | Free writing prospectus | Aug 11, 2020 | — |
| FWP | Free writing prospectus | Aug 11, 2020 | — |
| FWP | Free writing prospectus | Aug 11, 2020 | — |
| 424B3 | Prospectus | Aug 11, 2020 | — |
| 424B2 | Prospectus | Jun 12, 2020 | — |
| 424B5 | Prospectus supplement | Jun 11, 2020 | — |
| 424B5 | Prospectus supplement | Jan 8, 2020 | — |
| FWP | Free writing prospectus | Jan 7, 2020 | — |
| 424B3 | Prospectus | Jan 7, 2020 | — |
| 424B2 | Prospectus | Jun 3, 2019 | — |
| 424B5 | Prospectus supplement | May 30, 2019 | — |
| S-3ASR | Automatic shelf registration | Apr 30, 2019 | — |
| S-8 | Employee stock plan registration | Apr 30, 2019 | — |
| 424B5 | Prospectus supplement | Dec 11, 2018 | — |
| FWP | Free writing prospectus | Dec 10, 2018 | — |
| FWP | Free writing prospectus | Dec 10, 2018 | — |
| 424B3 | Prospectus | Dec 10, 2018 | — |
| S-8 | Employee stock plan registration | May 2, 2018 | — |
| S-3ASR | Automatic shelf registration | Apr 3, 2018 | — |
| 424B5 | Prospectus supplement | Jan 5, 2018 | — |
| FWP | Free writing prospectus | Jan 3, 2018 | — |
| FWP | Free writing prospectus | Jan 3, 2018 | — |
| 424B3 | Prospectus | Jan 3, 2018 | — |
| 424B5 | Prospectus supplement | Oct 3, 2017 | — |
| FWP | Free writing prospectus | Oct 2, 2017 | — |
| FWP | Free writing prospectus | Oct 2, 2017 | — |
| 424B3 | Prospectus | Oct 2, 2017 | — |
| 424B5 | Prospectus supplement | Mar 3, 2017 | — |
| FWP | Free writing prospectus | Mar 2, 2017 | — |
| 424B3 | Prospectus | Mar 2, 2017 | — |
| S-3ASR | Automatic shelf registration | May 2, 2016 | — |
| 424B5 | Prospectus supplement | Mar 8, 2016 | — |
| FWP | Free writing prospectus | Mar 7, 2016 | — |
| FWP | Free writing prospectus | Mar 7, 2016 | — |
| 424B3 | Prospectus | Mar 7, 2016 | — |
| 424B3 | Prospectus | May 13, 2015 | — |
| 424B3 | Prospectus | Apr 30, 2015 | — |
| S-3ASR | Automatic shelf registration | Apr 1, 2015 | — |
| 424B5 | Prospectus supplement | Jan 13, 2015 | — |
| FWP | Free writing prospectus | Jan 12, 2015 | — |
| FWP | Free writing prospectus | Jan 12, 2015 | — |
| 424B3 | Prospectus | Jan 12, 2015 | — |
Showing 98 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
- Electric Services (SIC 4911)
- Listed as
- ES (NYSE)
- Fiscal year ends
- December 31
- Incorporated in
- MA
- Headquarters
- Springfield, MA
- SEC filer status
- Large accelerated filer
- SEC CIK
- 72741
- Former names
- NORTHEAST UTILITIES (until Apr 29, 2015); NORTHEAST UTILITIES SYSTEM (until Nov 30, 2004)
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.