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 |
|---|---|---|---|
| 4 | Insider transaction | Mar 10, 2023 | Mar 9, 2023 |
| 4 | Insider transaction | Mar 10, 2023 | Mar 9, 2023 |
| 5 | Annual insider ownership | Feb 14, 2023 | Dec 31, 2022 |
| 4 | Insider transaction | Apr 29, 2022 | Apr 28, 2022 |
| 4 | Insider transaction | Apr 29, 2022 | Apr 28, 2022 |
| 4 | Insider transaction | Jul 15, 2021 | Jul 13, 2021 |
| 4 | Insider transaction | Jul 15, 2021 | Jul 13, 2021 |
| SC 13D/A | Amended ownership over 5% (active) | Jan 14, 2021 | — |
| SC 13D/A | Amended ownership over 5% (active) | Jan 4, 2021 | — |
| SC 13D/A | Amended ownership over 5% (active) | Jan 4, 2021 | — |
| 4 | Insider transaction | Jan 4, 2021 | Dec 30, 2020 |
| 4 | Insider transaction | Dec 31, 2020 | Dec 30, 2020 |
| 4 | Insider transaction | Oct 8, 2019 | Oct 8, 2019 |
| 4 | Insider transaction | Oct 8, 2019 | Oct 8, 2019 |
| SC 13D | Ownership over 5% (active) | Sep 12, 2019 | — |
| SC 13D/A | Amended ownership over 5% (active) | Sep 3, 2019 | — |
| 4 | Insider transaction | Aug 30, 2019 | Aug 30, 2019 |
| SC 13D/A | Amended ownership over 5% (active) | Aug 30, 2019 | — |
| 4 | Insider transaction | Aug 30, 2019 | Aug 30, 2019 |
| 4 | Insider transaction | Aug 30, 2019 | Aug 30, 2019 |
| 3 | Initial insider ownership | Aug 30, 2019 | Aug 30, 2019 |
| SC 13D/A | Amended ownership over 5% (active) | Aug 30, 2019 | — |
| SC 13D/A | Amended ownership over 5% (active) | Aug 1, 2019 | — |
| 4 | Insider transaction | Jul 31, 2019 | Jul 29, 2019 |
| SC 13D/A | Amended ownership over 5% (active) | Jul 30, 2019 | — |
| 4/A | Filing | Jul 24, 2019 | Jul 23, 2019 |
| 3 | Initial insider ownership | Jul 22, 2019 | Jul 11, 2019 |
| SC 13D/A | Amended ownership over 5% (active) | Jul 19, 2019 | — |
| SC 13D | Ownership over 5% (active) | Jul 17, 2019 | — |
| 4 | Insider transaction | Jul 16, 2019 | Jul 12, 2019 |
| SC 13D/A | Amended ownership over 5% (active) | Jul 15, 2019 | — |
| SC 13D/A | Amended ownership over 5% (active) | Jun 21, 2019 | — |
| 4 | Insider transaction | Apr 15, 2019 | Apr 15, 2019 |
| 4 | Insider transaction | Apr 15, 2019 | Apr 15, 2019 |
| SC 13D/A | Amended ownership over 5% (active) | Apr 3, 2019 | — |
| 3 | Initial insider ownership | Mar 28, 2019 | Mar 26, 2019 |
| SC 13D | Ownership over 5% (active) | Mar 25, 2019 | — |
| 4 | Insider transaction | Feb 15, 2019 | Feb 13, 2019 |
| 3 | Initial insider ownership | Feb 15, 2019 | Feb 13, 2019 |
| 4 | Insider transaction | Oct 22, 2018 | Oct 22, 2018 |
| 4 | Insider transaction | Oct 22, 2018 | Oct 22, 2018 |
| 4 | Insider transaction | Jul 30, 2018 | Jul 30, 2018 |
| 4 | Insider transaction | Jul 30, 2018 | Jul 30, 2018 |
| 4 | Insider transaction | Jul 30, 2018 | Jul 30, 2018 |
| SC 13D/A | Amended ownership over 5% (active) | May 14, 2018 | — |
| 4 | Insider transaction | Feb 13, 2018 | Feb 12, 2018 |
| 4 | Insider transaction | Feb 13, 2018 | Feb 12, 2018 |
| 4 | Insider transaction | Feb 13, 2018 | Feb 12, 2018 |
| 4 | Insider transaction | Jul 25, 2017 | Jul 25, 2017 |
| 4 | Insider transaction | Jul 25, 2017 | Jul 25, 2017 |
| 4 | Insider transaction | Jul 25, 2017 | Jul 25, 2017 |
| SC 13D/A | Amended ownership over 5% (active) | Apr 13, 2017 | — |
| 4 | Insider transaction | Mar 3, 2017 | Mar 1, 2017 |
| 4 | Insider transaction | Mar 3, 2017 | Mar 1, 2017 |
| 4 | Insider transaction | Mar 3, 2017 | Mar 1, 2017 |
| 4 | Insider transaction | Oct 25, 2016 | Oct 24, 2016 |
| 4 | Insider transaction | Oct 25, 2016 | Oct 24, 2016 |
| 4 | Insider transaction | Oct 25, 2016 | Oct 24, 2016 |
| 4 | Insider transaction | Oct 7, 2016 | Oct 6, 2016 |
| 4 | Insider transaction | Oct 7, 2016 | Oct 6, 2016 |
| 4 | Insider transaction | Aug 25, 2016 | Aug 24, 2016 |
| 4 | Insider transaction | Jun 14, 2016 | Jun 13, 2016 |
| 4 | Insider transaction | Jun 14, 2016 | Jun 13, 2016 |
| 4 | Insider transaction | Jun 14, 2016 | Jun 13, 2016 |
| SC 13D/A | Amended ownership over 5% (active) | Mar 29, 2016 | — |
| 4 | Insider transaction | Mar 8, 2016 | Mar 7, 2016 |
| 4 | Insider transaction | Mar 8, 2016 | Mar 7, 2016 |
| 4 | Insider transaction | Feb 3, 2016 | Feb 2, 2016 |
| 4 | Insider transaction | Feb 3, 2016 | Feb 2, 2016 |
| 4 | Insider transaction | Feb 3, 2016 | Feb 2, 2016 |
| 3 | Initial insider ownership | Dec 21, 2015 | Dec 18, 2015 |
| 4 | Insider transaction | Oct 22, 2015 | Oct 20, 2015 |
| 4 | Insider transaction | Oct 22, 2015 | Oct 20, 2015 |
| 4 | Insider transaction | Oct 22, 2015 | Oct 20, 2015 |
| 4 | Insider transaction | Jul 21, 2015 | Jul 20, 2015 |
| 4 | Insider transaction | Jul 21, 2015 | Jul 20, 2015 |
| 4 | Insider transaction | Jul 21, 2015 | Jul 20, 2015 |
| 4 | Insider transaction | May 5, 2015 | May 4, 2015 |
| 4 | Insider transaction | May 5, 2015 | May 4, 2015 |
| 4 | Insider transaction | May 5, 2015 | May 4, 2015 |
| 4 | Insider transaction | Apr 1, 2015 | Mar 31, 2015 |
| 3 | Initial insider ownership | Apr 1, 2015 | Mar 31, 2015 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 3, 2015 | — |
| 4 | Insider transaction | Jan 20, 2015 | Jan 19, 2015 |
| 3 | Initial insider ownership | Jan 20, 2015 | Jan 14, 2015 |
| 4 | Insider transaction | Oct 24, 2014 | Oct 23, 2014 |
| 4 | Insider transaction | Oct 23, 2014 | Oct 23, 2014 |
| 4 | Insider transaction | Jul 29, 2014 | Jul 28, 2014 |
| 4 | Insider transaction | Jul 29, 2014 | Jul 28, 2014 |
| SC 13D/A | Amended ownership over 5% (active) | May 15, 2014 | — |
| 4 | Insider transaction | May 9, 2014 | May 7, 2014 |
| 4 | Insider transaction | May 9, 2014 | May 7, 2014 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 12, 2014 | — |
| 4 | Insider transaction | Oct 3, 2013 | Oct 1, 2013 |
| 4 | Insider transaction | Jul 3, 2013 | Jul 3, 2013 |
| SC 13G/A | Amended ownership over 5% (passive) | Apr 10, 2013 | — |
| SC 13G | Ownership over 5% (passive) | Apr 10, 2013 | — |
| 4 | Insider transaction | Apr 4, 2013 | Apr 2, 2013 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2013 | — |
| 4 | Insider transaction | Jan 8, 2013 | Jan 4, 2013 |
| 4 | Insider transaction | Dec 21, 2012 | Dec 19, 2012 |
| 3 | Initial insider ownership | Dec 21, 2012 | Dec 19, 2012 |
| SC 13D/A | Amended ownership over 5% (active) | Dec 20, 2012 | — |
| 4 | Insider transaction | Dec 20, 2012 | Dec 11, 2012 |
| 4 | Insider transaction | Oct 15, 2012 | Oct 11, 2012 |
| 4 | Insider transaction | Oct 3, 2012 | Oct 2, 2012 |
| 4 | Insider transaction | Jul 10, 2012 | Jul 9, 2012 |
| SC 13D/A | Amended ownership over 5% (active) | Jun 21, 2012 | — |
| SC 13D/A | Amended ownership over 5% (active) | Jun 20, 2012 | — |
| 4 | Insider transaction | Apr 5, 2012 | Apr 4, 2012 |
| 4 | Insider transaction | Mar 13, 2012 | Mar 9, 2012 |
| 4 | Insider transaction | Jan 10, 2012 | Jan 6, 2012 |
| 4 | Insider transaction | Jan 6, 2012 | Jan 4, 2012 |
| SC 13D/A | Amended ownership over 5% (active) | Jan 6, 2012 | — |
| 4 | Insider transaction | Jan 6, 2012 | Jan 4, 2012 |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 6, 2012 | — |
| 4 | Insider transaction | Jan 3, 2012 | Dec 29, 2011 |
| SC 13D/A | Amended ownership over 5% (active) | Jan 3, 2012 | — |
| 4 | Insider transaction | Dec 29, 2011 | Dec 28, 2011 |
| 4 | Insider transaction | Oct 5, 2011 | Oct 4, 2011 |
| SC 13G | Ownership over 5% (passive) | Aug 2, 2011 | — |
| 4 | Insider transaction | Jul 7, 2011 | Jul 6, 2011 |
| 4 | Insider transaction | Apr 6, 2011 | Apr 5, 2011 |
| 4 | Insider transaction | Feb 28, 2011 | Feb 24, 2011 |
| 3 | Initial insider ownership | Feb 28, 2011 | Feb 24, 2011 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 10, 2011 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 9, 2011 | — |
| SC 13D/A | Amended ownership over 5% (active) | Jan 26, 2011 | — |
| 4 | Insider transaction | Jan 20, 2011 | Jan 18, 2011 |
| 4 | Insider transaction | Jan 4, 2011 | Dec 31, 2010 |
| 4 | Insider transaction | Oct 8, 2010 | Oct 7, 2010 |
| 4 | Insider transaction | Oct 7, 2010 | Oct 6, 2010 |
| 4 | Insider transaction | Oct 5, 2010 | Oct 1, 2010 |
| 4 | Insider transaction | Sep 30, 2010 | Sep 28, 2010 |
| SC 13D/A | Amended ownership over 5% (active) | Sep 20, 2010 | — |
| 4 | Insider transaction | Sep 20, 2010 | Sep 15, 2010 |
| 4 | Insider transaction | Sep 7, 2010 | Sep 2, 2010 |
| 4 | Insider transaction | Sep 1, 2010 | Aug 30, 2010 |
| 4 | Insider transaction | Jul 9, 2010 | Jul 7, 2010 |
| 4 | Insider transaction | Jul 8, 2010 | Jul 7, 2010 |
| 4 | Insider transaction | Jul 8, 2010 | Jul 7, 2010 |
| 4 | Insider transaction | Jul 2, 2010 | Jun 30, 2010 |
| 4 | Insider transaction | Jun 17, 2010 | Jun 15, 2010 |
| 4 | Insider transaction | Jun 10, 2010 | Jun 8, 2010 |
| SC 13D/A | Amended ownership over 5% (active) | Jun 4, 2010 | — |
| 4 | Insider transaction | Jun 2, 2010 | May 28, 2010 |
| 4 | Insider transaction | May 10, 2010 | May 6, 2010 |
| 4 | Insider transaction | Apr 30, 2010 | Apr 28, 2010 |
| 4 | Insider transaction | Apr 30, 2010 | Apr 28, 2010 |
| 4 | Insider transaction | Apr 30, 2010 | Apr 28, 2010 |
| 4 | Insider transaction | Mar 19, 2010 | Mar 15, 2010 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 10, 2010 | — |
| 4 | Insider transaction | Jan 14, 2010 | Jan 12, 2010 |
| 4 | Insider transaction | Jan 14, 2010 | Jan 12, 2010 |
| 3 | Initial insider ownership | Nov 19, 2009 | Nov 11, 2009 |
| SC 13G | Ownership over 5% (passive) | Oct 28, 2009 | — |
| 4 | Insider transaction | Oct 5, 2009 | Oct 1, 2009 |
| 4 | Insider transaction | Oct 5, 2009 | Oct 1, 2009 |
| 4 | Insider transaction | Jul 14, 2009 | Jul 13, 2009 |
| 4 | Insider transaction | Jul 14, 2009 | Jul 13, 2009 |
| SC 13G | Ownership over 5% (passive) | May 13, 2009 | — |
| 4 | Insider transaction | Apr 3, 2009 | Apr 1, 2009 |
| 4 | Insider transaction | Apr 3, 2009 | Apr 1, 2009 |
| SC 13D/A | Amended ownership over 5% (active) | Mar 17, 2009 | — |
| SC 13G | Ownership over 5% (passive) | Feb 13, 2009 | — |
| SC 13G | Ownership over 5% (passive) | Feb 12, 2009 | — |
| 4 | Insider transaction | Jan 20, 2009 | Jan 15, 2009 |
| 4 | Insider transaction | Jan 20, 2009 | Jan 15, 2009 |
| SC 13D/A | Amended ownership over 5% (active) | Oct 9, 2008 | — |
| 4 | Insider transaction | Oct 9, 2008 | Oct 7, 2008 |
| 4/A | Filing | Oct 9, 2008 | Jan 1, 2008 |
| 4 | Insider transaction | Oct 8, 2008 | Oct 6, 2008 |
| 4 | Insider transaction | Oct 8, 2008 | Oct 6, 2008 |
| 4 | Insider transaction | Aug 25, 2008 | Aug 22, 2008 |
| 4 | Insider transaction | Aug 25, 2008 | Aug 22, 2008 |
| 4 | Insider transaction | Aug 19, 2008 | Aug 15, 2008 |
| 4 | Insider transaction | Aug 19, 2008 | Aug 15, 2008 |
| SC 13D/A | Amended ownership over 5% (active) | Aug 14, 2008 | — |
| SC 13D/A | Amended ownership over 5% (active) | Apr 4, 2008 | — |
| 4 | Insider transaction | Mar 27, 2008 | Mar 25, 2008 |
| SC 13D/A | Amended ownership over 5% (active) | Feb 26, 2008 | — |
| 4 | Insider transaction | Feb 21, 2008 | Feb 19, 2008 |
| 4 | Insider transaction | Feb 21, 2008 | Feb 19, 2008 |
| SC 13D/A | Amended ownership over 5% (active) | Feb 19, 2008 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2008 | — |
| SC 13G | Ownership over 5% (passive) | Feb 14, 2008 | — |
| 4 | Insider transaction | Feb 13, 2008 | Feb 11, 2008 |
| 4 | Insider transaction | Feb 6, 2008 | Jan 31, 2008 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 6, 2008 | — |
| 4 | Insider transaction | Jan 11, 2008 | Mar 2, 2007 |
| SC 13D/A | Amended ownership over 5% (active) | Jan 11, 2008 | — |
| 4 | Insider transaction | Jan 7, 2008 | Jan 4, 2008 |
| SC 13D/A | Amended ownership over 5% (active) | Jan 4, 2008 | — |
| 4 | Insider transaction | Jan 3, 2008 | Dec 31, 2007 |
| 4 | Insider transaction | Dec 21, 2007 | Dec 20, 2007 |
| 4 | Insider transaction | Dec 21, 2007 | Dec 20, 2007 |
| 4 | Insider transaction | Dec 21, 2007 | Dec 20, 2007 |
| 4 | Insider transaction | Dec 21, 2007 | Dec 20, 2007 |
| 4 | Insider transaction | Dec 21, 2007 | Dec 20, 2007 |
| 4 | Insider transaction | Dec 4, 2007 | Nov 30, 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.