Nstar Electric Co SEC filings NSARP
Nstar Electric Co has 405 filings in SEC EDGAR's recent list, going back to Jan 27, 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 |
|---|---|---|---|
| POSASR | Filing | Feb 20, 2026 | — |
| 15-12G | Deregistration | Sep 28, 2023 | — |
| UPLOAD | Letter from the SEC | Jun 9, 2014 | — |
| UPLOAD | Letter from the SEC | May 13, 2014 | — |
| UPLOAD | Letter from the SEC | Jun 6, 2013 | — |
| UPLOAD | Letter from the SEC | May 21, 2013 | — |
| UPLOAD | Letter from the SEC | Apr 17, 2013 | — |
| POSASR | Post effective amendment n0. 2 to form s-3 | Oct 9, 2012 | — |
| POSASR | Post-effective amendment no. 1 | Apr 19, 2012 | — |
| AW | Withdrawal of amendment | Apr 18, 2012 | — |
| RW WD | Withdrawal of a registration withdrawal request | Apr 18, 2012 | — |
| RW | Request for withdrawal | Apr 17, 2012 | — |
| 425 | Form 8-k | Feb 15, 2012 | — |
| UPLOAD | Letter from the SEC | May 5, 2008 | — |
| CORRESP | Letter to the SEC | Apr 9, 2008 | — |
| UPLOAD | Letter from the SEC | Mar 28, 2008 | — |
| EFFECT | Filing | Jun 1, 2007 | — |
| CORRESP | Letter to the SEC | Oct 26, 2005 | — |
| CORRESP | Letter to the SEC | Jun 16, 2005 | — |
| CORRESP | Letter to the SEC | May 10, 2005 | — |
| UPLOAD | Letter from the SEC | Apr 29, 2005 | — |
| NT 10-K | Notification of late filing | Mar 30, 2000 | Dec 31, 1999 |
| 10-K405/A | Boston edison form 10-k/a | Jul 13, 1999 | Dec 31, 1998 |
| 15-12G/A | Certification and notice of termination of registration | May 20, 1998 | — |
| U-3A-2 | Boston edison 1997 form u-3a-2 | Feb 27, 1998 | Dec 31, 1997 |
| U-3A-2 | Boston edison 1996 form u-3a-2 | Feb 27, 1997 | Dec 31, 1996 |
| U-3A-2 | Boston edison form u-3a-2 | Feb 28, 1996 | Dec 31, 1995 |
| U-3A-2 | Boston edison form u-3a-2 | Feb 28, 1995 | Dec 31, 1994 |
| PREA14A | Notice of change of annual meeting | Apr 27, 1994 | — |
| U-3A-2 | Boston edison form u-3a-2 | Feb 28, 1994 | Dec 31, 1993 |
Showing 30 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.
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Company profile
- Industry
- Electric Services (SIC 4911)
- Listed as
- NSARO (OTC), NSARP (OTC)
- Fiscal year ends
- December 31
- Incorporated in
- MA
- Headquarters
- Boston, MA
- SEC CIK
- 13372
- Former names
- BOSTON EDISON CO (until Jan 5, 2007)
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.