Connecticut Light & Power Co SEC filings CNLPL
Connecticut Light & Power Co has 603 filings in SEC EDGAR's recent list, going back to Jan 4, 1994. Its latest annual report, Form 10-K, was filed on Feb 17, 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 |
|---|---|---|---|
| S-3ASR | Automatic shelf registration | Apr 3, 2025 | — |
| 424B5 | Prospectus supplement | Jan 7, 2025 | — |
| FWP | Free writing prospectus | Jan 6, 2025 | — |
| 424B3 | Prospectus | Jan 6, 2025 | — |
| 424B5 | Prospectus supplement | Aug 7, 2024 | — |
| FWP | Free writing prospectus | Aug 6, 2024 | — |
| 424B3 | Prospectus | Aug 6, 2024 | — |
| 424B5 | Prospectus supplement | Jan 17, 2024 | — |
| FWP | Free writing prospectus | Jan 16, 2024 | — |
| 424B3 | Prospectus | Jan 16, 2024 | — |
| 424B5 | Prospectus supplement | Jun 27, 2023 | — |
| FWP | Free writing prospectus | Jun 26, 2023 | — |
| 424B3 | Prospectus | Jun 26, 2023 | — |
| 424B5 | Prospectus supplement | Jan 4, 2023 | — |
| FWP | Free writing prospectus | Jan 3, 2023 | — |
| 424B3 | Prospectus | Jan 3, 2023 | — |
| S-3ASR | Automatic shelf registration | Apr 13, 2022 | — |
| 424B5 | Prospectus supplement | Jun 22, 2021 | — |
| FWP | Free writing prospectus | Jun 21, 2021 | — |
| 424B3 | Prospectus | Jun 21, 2021 | — |
| 424B5 | Prospectus supplement | Nov 18, 2020 | — |
| 424B3 | Prospectus | Nov 17, 2020 | — |
| FWP | Free writing prospectus | Nov 16, 2020 | — |
| 424B3 | Prospectus | Nov 16, 2020 | — |
| 424B5 | Prospectus supplement | Sep 11, 2019 | — |
| FWP | Free writing prospectus | Sep 10, 2019 | — |
| 424B3 | Prospectus | Sep 10, 2019 | — |
| S-3ASR | Automatic shelf registration | Apr 30, 2019 | — |
| 424B5 | Prospectus supplement | Mar 26, 2019 | — |
| FWP | Free writing prospectus | Mar 25, 2019 | — |
| 424B3 | Prospectus | Mar 25, 2019 | — |
| 424B5 | Prospectus supplement | Mar 20, 2018 | — |
| FWP | Free writing prospectus | Mar 19, 2018 | — |
| 424B3 | Prospectus | Mar 19, 2018 | — |
| 424B5 | Prospectus supplement | Aug 9, 2017 | — |
| FWP | Free writing prospectus | Aug 8, 2017 | — |
| 424B3 | Prospectus | Aug 8, 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 | Nov 16, 2015 | — |
| FWP | Free writing prospectus | Nov 13, 2015 | — |
| 424B3 | Prospectus | Nov 13, 2015 | — |
| 424B5 | Prospectus supplement | May 14, 2015 | — |
| FWP | Free writing prospectus | May 13, 2015 | — |
| 424B3 | Prospectus | May 13, 2015 | — |
| 424B3 | Prospectus | May 13, 2015 | — |
| 424B5 | Prospectus supplement | Apr 15, 2014 | — |
| FWP | Free writing prospectus | Apr 14, 2014 | — |
| 424B3 | Prospectus | Apr 14, 2014 | — |
| S-3ASR | Automatic shelf registration | May 3, 2013 | — |
| 424B5 | Prospectus supplement | Jan 9, 2013 | — |
| FWP | Free writing prospectus | Jan 8, 2013 | — |
| 424B3 | Prospectus | Jan 8, 2013 | — |
| S-3ASR | Automatic shelf registration | Mar 19, 2010 | — |
| 424B5 | Prospectus supplement | Feb 10, 2009 | — |
| FWP | Free writing prospectus | Feb 9, 2009 | — |
| 424B3 | Prospectus | Feb 9, 2009 | — |
| 424B5 | Prospectus supplement | May 20, 2008 | — |
| FWP | Free writing prospectus | May 19, 2008 | — |
| 424B3 | Prospectus | May 19, 2008 | — |
| POS AM | Pos am no. 1 to form s-3 | Mar 18, 2008 | — |
| 424B5 | Prospectus supplement | Sep 11, 2007 | — |
| FWP | Free writing prospectus | Sep 11, 2007 | — |
| FWP | Free writing prospectus | Sep 11, 2007 | — |
| 424B1 | Filing | Sep 10, 2007 | — |
| 424B5 | Prospectus supplement | Mar 21, 2007 | — |
| FWP | Free writing prospectus | Mar 20, 2007 | — |
| FWP | Free writing prospectus | Mar 20, 2007 | — |
| 424B1 | Filing | Mar 20, 2007 | — |
| S-3ASR | Automatic shelf registration | Mar 20, 2007 | — |
| 424B3 | Prospectus | Jun 2, 2006 | — |
| FWP | Free writing prospectus | Jun 1, 2006 | — |
| 424B2 | Prospectus | Jun 1, 2006 | — |
| 424B2 | Prospectus | Apr 5, 2005 | — |
| 424B1 | The connecticut light and power company 424b1 | Apr 5, 2005 | — |
| 424B2 | Prospectus | Sep 15, 2004 | — |
| 424B1 | The connecticut light and power company 424b1 | Sep 13, 2004 | — |
| S-3/A | Amendment no. 1 to form s-3 | Sep 3, 2004 | — |
| S-3 | Shelf registration | Aug 16, 2004 | — |
| POS AMC | Post-eff. amendment to form u-1 | Apr 8, 1999 | — |
| S-1/A | Amended registration statement | Aug 29, 1997 | — |
| S-1 | Registration statement | Jul 8, 1997 | — |
| 424B5 | Prospectus supplement | Jun 21, 1996 | — |
| 424B5 | Prospectus supplement | Jun 17, 1996 | — |
| 424B2 | Prospectus | Jan 17, 1995 | — |
| POS AMC | Filing | Jan 13, 1995 | — |
| 424B5 | Prospectus supplement | Jan 11, 1995 | — |
| POS AMC | Cl&p post-effective amendment #2 | Dec 9, 1994 | — |
| S-3 | Shelf registration | Nov 18, 1994 | — |
| POS AMC | Cl&p post-effective amendment #1 | Oct 31, 1994 | — |
| 424B5 | Prospectus supplement | Sep 29, 1994 | — |
| S-3/A | S-3 amendment #1 | Sep 15, 1994 | — |
| S-3 | Shelf registration | Aug 29, 1994 | — |
| POS AMC | Cl&p post-effective amendment 3 to form u-1 | Aug 12, 1994 | — |
| POS AMC | Cl&p post-effective amendment 2 to form u-1 | Jun 30, 1994 | — |
| 424B5 | Prospectus supplement | May 19, 1994 | — |
| 424B5 | Prospectus supplement | Feb 4, 1994 | — |
| 424B5 | Prospectus supplement | Feb 4, 1994 | — |
Showing 100 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
- CNTHP (OTC), CNLPL (OTC), CNTHO (OTC), CNTHN (OTC), CNLHP (OTC), CNLTP (OTC), CNLTL (OTC), CNPWM (OTC), CNLHO (OTC), CNPWP (OTC), CNLPM (OTC), CNLTN (OTC), CNLHN (OTC)
- Fiscal year ends
- December 31
- Incorporated in
- CT
- Headquarters
- Berlin, CT
- SEC CIK
- 23426
Other Electric Services companies
- Nextera Energy Inc NEE
- Southern Co SO
- Constellation Energy Corp CEG
- American Electric Power Co Inc AEP
- Dominion Energy, Inc D
- Entergy Corp /DE/ ETR
- Vistra Corp. VST
- Fortis Inc. FTS
Source: SEC EDGAR filings. This is company-reported data, not investment advice.