Wright Investors Service Holdings, Inc. SEC filings IWSH
Wright Investors Service Holdings, Inc. has 534 filings in SEC EDGAR's recent list, going back to Feb 12, 2004. Its latest annual report, Form 10-K, was filed on Mar 30, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Aug 14, 2026, covering the quarter ended Jun 30, 2026. The most recent current report (Form 8-K) was filed on Sep 15, 2020 (other events). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 10-Q | Quarterly report | Aug 14, 2026 | Jun 30, 2026 |
| 10-Q | Quarterly report | May 15, 2026 | Mar 31, 2026 |
| 10-K/A | Amended annual report | Apr 22, 2026 | Dec 31, 2025 |
| 10-K | Annual report | Mar 30, 2026 | Dec 31, 2025 |
| 10-Q | Quarterly report | Nov 14, 2025 | Sep 30, 2025 |
| 10-Q | Quarterly report | Aug 13, 2025 | Jun 30, 2025 |
| 10-Q | Quarterly report | May 15, 2025 | Mar 31, 2025 |
| 10-K/A | Amended annual report | Apr 22, 2025 | Dec 31, 2024 |
| 10-K | Annual report | Mar 27, 2025 | Dec 31, 2024 |
| 10-Q | Quarterly report | Nov 13, 2024 | Sep 30, 2024 |
| 10-Q | Quarterly report | Aug 13, 2024 | Jun 30, 2024 |
| 10-Q | Quarterly report | May 15, 2024 | Mar 31, 2024 |
| 10-K/A | Amended annual report | Apr 29, 2024 | Dec 31, 2023 |
| 10-K | Annual report | Mar 27, 2024 | Dec 31, 2023 |
| 10-Q | Quarterly report | Nov 13, 2023 | Sep 30, 2023 |
| 10-Q | Quarterly report | Aug 11, 2023 | Jun 30, 2023 |
| 10-Q | Quarterly report | May 12, 2023 | Mar 31, 2023 |
| 10-K/A | Amended annual report | Apr 27, 2023 | Dec 31, 2022 |
| 10-K | Annual report | Mar 28, 2023 | Dec 31, 2022 |
| 10-Q | Quarterly report | Nov 14, 2022 | Sep 30, 2022 |
| 10-Q | Quarterly report | Aug 15, 2022 | Jun 30, 2022 |
| 10-Q | Quarterly report | May 16, 2022 | Mar 31, 2022 |
| 10-K/A | Amended annual report | Apr 20, 2022 | Dec 31, 2021 |
| 10-K | Annual report | Mar 11, 2022 | Dec 31, 2021 |
| 10-Q | Quarterly report | Nov 12, 2021 | Sep 30, 2021 |
| 10-Q | Quarterly report | Aug 11, 2021 | Jun 30, 2021 |
| 10-Q | Quarterly report | May 13, 2021 | Mar 31, 2021 |
| 10-K/A | Amended annual report | Apr 23, 2021 | Dec 31, 2020 |
| 10-K | Annual report | Mar 12, 2021 | Dec 31, 2020 |
| 10-Q | Quarterly report | Nov 12, 2020 | Sep 30, 2020 |
| 8-K |
Current report
Other events
|
Sep 15, 2020 | Sep 15, 2020 |
| 10-Q | Quarterly report | Aug 13, 2020 | Jun 30, 2020 |
| 10-Q | Quarterly report | May 13, 2020 | Mar 31, 2020 |
| 10-K/A | Amended annual report | Apr 28, 2020 | Dec 31, 2019 |
| 10-K | Annual report | Mar 30, 2020 | Dec 31, 2019 |
| 10-Q | Quarterly report | Nov 13, 2019 | Sep 30, 2019 |
| 8-K |
Current report
Shareholder vote results
|
Oct 23, 2019 | Oct 22, 2019 |
| DEF 14A | Proxy statement | Sep 23, 2019 | Oct 22, 2019 |
| 8-K |
Current report
Other events
|
Aug 12, 2019 | Aug 12, 2019 |
| 10-Q | Quarterly report | Aug 7, 2019 | Jun 30, 2019 |
| DFAN14A | Filing | Jun 18, 2019 | — |
| 10-Q | Quarterly report | May 15, 2019 | Mar 31, 2019 |
| 10-K/A | Amended annual report | Apr 30, 2019 | Dec 31, 2018 |
| 10-K | Annual report | Mar 29, 2019 | Dec 31, 2018 |
| 8-K |
Current report
Officer or director change
|
Mar 28, 2019 | Mar 25, 2019 |
| 8-K |
Current report
Officer or director change
|
Feb 15, 2019 | Feb 12, 2019 |
| 8-K |
Current report
Officer or director change
|
Nov 21, 2018 | Nov 15, 2018 |
| 10-Q | Quarterly report | Nov 6, 2018 | Sep 30, 2018 |
| 8-K |
Current report
Officer or director change
|
Nov 2, 2018 | Nov 1, 2018 |
| 8-K |
Current report
Officer or director change
|
Oct 4, 2018 | Oct 4, 2018 |
| 10-Q | Quarterly report | Aug 9, 2018 | Jun 30, 2018 |
| 8-K |
Current report
Acquisition or sale of assets, Shareholder vote results
|
Jul 17, 2018 | Jul 16, 2018 |
| DEFM14A | Filing | Jun 8, 2018 | — |
| 8-K |
Current report
Other events
|
May 18, 2018 | May 18, 2018 |
| PREM14A | Filing | May 18, 2018 | Jul 16, 2018 |
| 10-Q | Quarterly report | May 10, 2018 | Mar 31, 2018 |
| 8-K |
Current report
Results of operations
|
May 10, 2018 | May 10, 2018 |
| 10-K/A | Amended annual report | Apr 27, 2018 | Dec 31, 2017 |
| 8-K |
Current report
Material agreement, Other events
|
Apr 12, 2018 | Apr 11, 2018 |
| DEFA14A | Additional proxy material | Apr 12, 2018 | — |
| 8-K |
Current report
Other events
|
Apr 3, 2018 | Apr 2, 2018 |
| 10-K | Annual report | Mar 26, 2018 | Dec 31, 2017 |
| 8-K |
Current report
Results of operations
|
Mar 26, 2018 | Mar 26, 2018 |
| 8-K |
Current report
Officer or director change
|
Mar 16, 2018 | Mar 15, 2018 |
| 10-Q | Quarterly report | Nov 7, 2017 | Sep 30, 2017 |
| 8-K |
Current report
Results of operations
|
Nov 7, 2017 | Nov 7, 2017 |
| 10-Q | Quarterly report | Aug 9, 2017 | Jun 30, 2017 |
| 8-K |
Current report
Results of operations
|
Aug 9, 2017 | Aug 9, 2017 |
| 10-Q | Quarterly report | May 10, 2017 | Mar 31, 2017 |
| 8-K |
Current report
Results of operations
|
May 10, 2017 | May 10, 2017 |
| 10-K/A | Amended annual report | Apr 18, 2017 | Dec 31, 2016 |
| 10-K | Annual report | Mar 24, 2017 | Dec 31, 2016 |
| 8-K |
Current report
Results of operations
|
Mar 24, 2017 | Mar 24, 2017 |
| 10-Q | Quarterly report | Nov 8, 2016 | Sep 30, 2016 |
| 8-K |
Current report
Results of operations
|
Nov 8, 2016 | Nov 8, 2016 |
| 10-Q | Quarterly report | Aug 12, 2016 | Aug 5, 2016 |
| 8-K |
Current report
Results of operations
|
Aug 12, 2016 | Aug 12, 2016 |
| 10-Q | Quarterly report | May 11, 2016 | Mar 31, 2016 |
| 8-K |
Current report
Results of operations
|
May 11, 2016 | May 11, 2016 |
| 10-K/A | Amended annual report | Apr 25, 2016 | Dec 31, 2015 |
| 10-K | Annual report | Mar 24, 2016 | Dec 31, 2015 |
| 8-K |
Current report
Results of operations
|
Mar 24, 2016 | Mar 24, 2016 |
| 8-K |
Current report
Officer or director change
|
Dec 18, 2015 | Dec 18, 2015 |
| 10-Q | Quarterly report | Nov 6, 2015 | Sep 30, 2015 |
| 8-K |
Current report
Results of operations
|
Nov 6, 2015 | Nov 6, 2015 |
| 10-Q | Quarterly report | Aug 14, 2015 | Jun 30, 2015 |
| 8-K |
Current report
Results of operations
|
Aug 14, 2015 | Aug 14, 2015 |
| 10-Q | Quarterly report | May 13, 2015 | Mar 31, 2015 |
| 10-K/A | Amended annual report | Apr 27, 2015 | Dec 31, 2014 |
| 8-K |
Current report
Officer or director change
|
Mar 31, 2015 | Mar 30, 2015 |
| 10-K/A | Amended annual report | Mar 24, 2015 | Dec 31, 2014 |
| 10-K | Annual report | Mar 23, 2015 | Dec 31, 2014 |
| 8-K | Current report | Jan 30, 2015 | Jan 30, 2015 |
| 8-K |
Current report
Officer or director change
|
Jan 20, 2015 | Jan 14, 2015 |
| 8-K |
Current report
Officer or director change
|
Dec 16, 2014 | Dec 16, 2014 |
| 10-Q | Quarterly report | Nov 12, 2014 | Sep 30, 2014 |
| 10-Q | Quarterly report | Aug 12, 2014 | Jun 30, 2014 |
| 10-Q | Quarterly report | May 13, 2014 | Mar 31, 2014 |
| 10-K/A | Amended annual report | Apr 29, 2014 | Dec 31, 2013 |
| 10-K | Annual report | Mar 27, 2014 | Dec 31, 2013 |
| 8-K |
Current report
Officer or director change
|
Jan 30, 2014 | Jan 24, 2014 |
| 10-Q | Quarterly report | Nov 13, 2013 | Sep 30, 2013 |
| 8-K |
Current report
Other events
|
Oct 4, 2013 | Oct 3, 2013 |
| 10-Q | Quarterly report | Aug 14, 2013 | Jun 30, 2013 |
| 8-K |
Current report
Material agreement
|
Aug 2, 2013 | Aug 2, 2013 |
| 10-Q | Quarterly report | May 14, 2013 | Mar 31, 2013 |
| 10-K/A | Amended annual report | Apr 29, 2013 | Dec 31, 2012 |
| 10-K | Annual report | Apr 1, 2013 | Dec 31, 2012 |
| UPLOAD | Letter from the SEC | Feb 26, 2013 | — |
| 8-K/A |
Amended current report
Acquisition or sale of assets, Officer or director change, Other events
|
Feb 22, 2013 | Dec 19, 2012 |
| CT ORDER | Filing | Feb 13, 2013 | — |
| CORRESP | Letter to the SEC | Feb 8, 2013 | — |
| 8-K |
Current report
Bylaw or fiscal year change
|
Feb 8, 2013 | Feb 4, 2013 |
| D | Filing | Feb 6, 2013 | — |
| CORRESP | Letter to the SEC | Jan 31, 2013 | — |
| 8-K |
Current report
Officer or director change
|
Jan 24, 2013 | Jan 17, 2013 |
| UPLOAD | Letter from the SEC | Jan 17, 2013 | — |
| 8-K |
Current report
Acquisition or sale of assets, Officer or director change, Other events
|
Dec 21, 2012 | Dec 19, 2012 |
| 10-Q | Quarterly report | Nov 2, 2012 | Sep 30, 2012 |
| 10-Q | Quarterly report | Aug 14, 2012 | Jun 30, 2012 |
| 8-K |
Current report
Material agreement, Other events
|
Jun 19, 2012 | Jun 18, 2012 |
| 10-Q | Quarterly report | May 15, 2012 | Mar 31, 2012 |
| 10-K/A | Amended annual report | Apr 25, 2012 | Dec 31, 2011 |
| 10-K | Annual report | Mar 2, 2012 | Dec 31, 2011 |
| 10-Q | Quarterly report | Nov 3, 2011 | Sep 30, 2011 |
| 10-Q/A | Amended quarterly report | Aug 18, 2011 | Jun 30, 2011 |
| 10-Q | Quarterly report | Aug 15, 2011 | Jun 30, 2011 |
| 10-Q | Quarterly report | May 10, 2011 | Mar 31, 2011 |
| 10-K/A | Amended annual report | Apr 29, 2011 | Dec 31, 2010 |
| 10-K | Annual report | Mar 4, 2011 | Dec 31, 2010 |
| 8-K |
Current report
Officer or director change
|
Feb 28, 2011 | Feb 24, 2011 |
| 10-Q | Quarterly report | Nov 15, 2010 | Sep 30, 2010 |
| 8-K |
Current report
Officer or director change
|
Sep 8, 2010 | Sep 1, 2010 |
| 10-Q | Quarterly report | Aug 6, 2010 | Jun 30, 2010 |
| 8-K |
Current report
Officer or director change
|
Jun 7, 2010 | Jun 1, 2010 |
| 10-Q | Quarterly report | May 20, 2010 | Mar 31, 2010 |
| NT 10-Q | Filing | May 17, 2010 | Mar 31, 2010 |
| 8-K |
Current report
Material agreement
|
May 17, 2010 | May 14, 2010 |
| 10-K/A | Amended annual report | Apr 30, 2010 | Dec 31, 2009 |
| 8-K |
Current report
Officer or director change
|
Apr 7, 2010 | Apr 1, 2010 |
| 10-K | Annual report | Mar 31, 2010 | Dec 31, 2009 |
| 8-K |
Current report
Material agreement, Acquisition or sale of assets, Other events
|
Jan 19, 2010 | Jan 15, 2010 |
| 8-K |
Current report
Other events
|
Jan 14, 2010 | Jan 14, 2010 |
| DEFM14A | Filing | Dec 15, 2009 | — |
| 8-K |
Current report
Other events
|
Dec 4, 2009 | Dec 4, 2009 |
| DEFA14A | Additional proxy material | Dec 4, 2009 | — |
| PREM14A | Filing | Dec 4, 2009 | Jan 14, 2010 |
| 8-K |
Current report
Material agreement
|
Nov 25, 2009 | Nov 24, 2009 |
| DEFA14A | Additional proxy material | Nov 25, 2009 | — |
| 8-K |
Current report
Other events
|
Nov 24, 2009 | Nov 24, 2009 |
| DEFA14A | Additional proxy material | Nov 24, 2009 | — |
| DEFA14A | Additional proxy material | Nov 18, 2009 | — |
| DEF 14A | Proxy statement | Nov 18, 2009 | Dec 28, 2009 |
| 8-K |
Current report
Officer or director change
|
Nov 17, 2009 | Nov 11, 2009 |
| 8-K |
Current report
Results of operations
|
Nov 17, 2009 | Nov 17, 2009 |
| 10-Q | Quarterly report | Nov 16, 2009 | Sep 30, 2009 |
| 8-K |
Current report
Acquisition or sale of assets
|
Oct 23, 2009 | Oct 20, 2009 |
| 8-K |
Current report
Material agreement
|
Oct 14, 2009 | Oct 7, 2009 |
| 8-K |
Current report
Other events
|
Oct 2, 2009 | Oct 2, 2009 |
| 10-Q | Quarterly report | Aug 13, 2009 | Jun 30, 2009 |
| 8-K |
Current report
Results of operations
|
Aug 13, 2009 | Aug 13, 2009 |
| 10-Q | Quarterly report | May 15, 2009 | Mar 31, 2009 |
| 8-K |
Current report
Results of operations
|
May 15, 2009 | May 15, 2009 |
| 10-K/A | Amended annual report | Apr 30, 2009 | Dec 31, 2008 |
| 10-K | Annual report | Mar 31, 2009 | Dec 31, 2008 |
| 8-K |
Current report
Results of operations
|
Mar 31, 2009 | Mar 31, 2009 |
| 10-Q | Quarterly report | Nov 14, 2008 | Sep 30, 2008 |
| 8-K |
Current report
Results of operations
|
Nov 14, 2008 | Nov 14, 2008 |
| UPLOAD | Letter from the SEC | Nov 12, 2008 | — |
| CORRESP | Letter to the SEC | Oct 8, 2008 | — |
| UPLOAD | Letter from the SEC | Oct 7, 2008 | — |
| 8-K |
Current report
Other events
|
Aug 28, 2008 | Aug 28, 2008 |
| SC TO-T/A | Amendment #3 to schedule to-t | Aug 28, 2008 | — |
| SC TO-T/A | Amendment #3 to schedule to-t | Aug 27, 2008 | — |
| 8-K |
Current report
Other events
|
Aug 20, 2008 | Aug 20, 2008 |
| SC TO-T/A | Amendment #2 to schedule to-t | Aug 18, 2008 | — |
| CORRESP | Letter to the SEC | Aug 18, 2008 | — |
| 8-K |
Current report
Results of operations
|
Aug 15, 2008 | Aug 15, 2008 |
| 10-Q | Quarterly report | Aug 14, 2008 | Jun 30, 2008 |
| 8-K |
Current report
Unregistered share sale
|
Aug 14, 2008 | Aug 13, 2008 |
| 8-K |
Current report
Material agreement
|
Aug 12, 2008 | Aug 11, 2008 |
| SC TO-T/A | Amendment #1 to schedule to-t | Aug 12, 2008 | — |
| CORRESP | Letter to the SEC | Aug 12, 2008 | — |
| SC TO-T | Schedule to | Jul 24, 2008 | — |
| 8-K |
Current report
Material agreement
|
Jun 26, 2008 | Jun 26, 2008 |
| SC TO-C | Filing | Jun 26, 2008 | — |
| SC TO-C | Filing | Jun 26, 2008 | — |
| 8-K |
Current report
Material agreement, Acquisition or sale of assets, Regulation FD disclosure
|
Jun 23, 2008 | Jun 19, 2008 |
| 10-Q | Quarterly report | May 15, 2008 | Mar 31, 2008 |
| 8-K |
Current report
Results of operations
|
May 15, 2008 | May 15, 2008 |
| DEF 14A | Proxy statement | Apr 29, 2008 | Jun 10, 2008 |
| S-8 | Employee stock plan registration | Apr 2, 2008 | — |
| 10-K | Annual report | Mar 31, 2008 | Dec 31, 2007 |
| 8-K |
Current report
Results of operations
|
Mar 31, 2008 | Mar 31, 2008 |
| 8-K |
Current report
Material agreement, Agreement ended, Officer or director change
|
Mar 27, 2008 | Mar 25, 2008 |
| 8-K |
Current report
Other events
|
Mar 13, 2008 | Mar 13, 2008 |
| 8-K |
Current report
Officer or director change
|
Dec 27, 2007 | Dec 20, 2007 |
| DEF 14A | Proxy statement | Nov 16, 2007 | Dec 20, 2007 |
| 10-Q | Quarterly report | Nov 14, 2007 | Sep 30, 2007 |
| 8-K |
Current report
Results of operations
|
Nov 14, 2007 | Nov 14, 2007 |
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
- Investment Advice (SIC 6282)
- Listed as
- IWSH (OTC)
- Fiscal year ends
- December 31
- Incorporated in
- DE
- Headquarters
- Mt Kisco, NY
- SEC filer status
- Non-accelerated filer, Smaller reporting company
- SEC CIK
- 1279715
- Former names
- NATIONAL PATENT DEVELOPMENT CORP (until Jan 31, 2013)
Other Investment Advice companies
Source: SEC EDGAR filings. This is company-reported data, not investment advice.