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 |
| 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 |
| 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 |
| 4 | Insider transaction | Apr 29, 2022 | Apr 28, 2022 |
| 4 | Insider transaction | Apr 29, 2022 | Apr 28, 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 |
| 4 | Insider transaction | Jul 15, 2021 | Jul 13, 2021 |
| 4 | Insider transaction | Jul 15, 2021 | Jul 13, 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 |
| 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 |
| 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 |
| 4 | Insider transaction | Oct 8, 2019 | Oct 8, 2019 |
| 4 | Insider transaction | Oct 8, 2019 | Oct 8, 2019 |
| DEF 14A | Proxy statement | Sep 23, 2019 | Oct 22, 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 | — |
| 8-K |
Current report
Other events
|
Aug 12, 2019 | Aug 12, 2019 |
| 10-Q | Quarterly report | Aug 7, 2019 | Jun 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 | — |
| 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 |
| 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 | — |
| 10-K | Annual report | Mar 29, 2019 | Dec 31, 2018 |
| 3 | Initial insider ownership | Mar 28, 2019 | Mar 26, 2019 |
| 8-K |
Current report
Officer or director change
|
Mar 28, 2019 | Mar 25, 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 |
| 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 |
| 4 | Insider transaction | Oct 22, 2018 | Oct 22, 2018 |
| 4 | Insider transaction | Oct 22, 2018 | Oct 22, 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 |
| 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 |
| 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 |
| SC 13D/A | Amended ownership over 5% (active) | May 14, 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| SC 13D/A | Amended ownership over 5% (active) | Apr 13, 2017 | — |
| 10-K | Annual report | Mar 24, 2017 | Dec 31, 2016 |
| 8-K |
Current report
Results of operations
|
Mar 24, 2017 | Mar 24, 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 |
| 10-Q | Quarterly report | Nov 8, 2016 | Sep 30, 2016 |
| 8-K |
Current report
Results of operations
|
Nov 8, 2016 | Nov 8, 2016 |
| 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 |
| 10-Q | Quarterly report | Aug 12, 2016 | Aug 5, 2016 |
| 8-K |
Current report
Results of operations
|
Aug 12, 2016 | Aug 12, 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 |
| 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 |
| SC 13D/A | Amended ownership over 5% (active) | Mar 29, 2016 | — |
| 10-K | Annual report | Mar 24, 2016 | Dec 31, 2015 |
| 8-K |
Current report
Results of operations
|
Mar 24, 2016 | Mar 24, 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 |
| 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 |
| 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 |
| 10-Q | Quarterly report | Aug 14, 2015 | Jun 30, 2015 |
| 8-K |
Current report
Results of operations
|
Aug 14, 2015 | Aug 14, 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 |
| 10-Q | Quarterly report | May 13, 2015 | Mar 31, 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 |
| 10-K/A | Amended annual report | Apr 27, 2015 | Dec 31, 2014 |
| 4 | Insider transaction | Apr 1, 2015 | Mar 31, 2015 |
| 3 | Initial insider ownership | Apr 1, 2015 | Mar 31, 2015 |
| 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 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 3, 2015 | — |
| 8-K | Current report | Jan 30, 2015 | Jan 30, 2015 |
| 4 | Insider transaction | Jan 20, 2015 | Jan 19, 2015 |
| 3 | Initial insider ownership | Jan 20, 2015 | Jan 14, 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 |
| 4 | Insider transaction | Oct 24, 2014 | Oct 23, 2014 |
| 4 | Insider transaction | Oct 23, 2014 | Oct 23, 2014 |
| 10-Q | Quarterly report | Aug 12, 2014 | Jun 30, 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 | — |
| 10-Q | Quarterly report | May 13, 2014 | Mar 31, 2014 |
| 4 | Insider transaction | May 9, 2014 | May 7, 2014 |
| 4 | Insider transaction | May 9, 2014 | May 7, 2014 |
| 10-K/A | Amended annual report | Apr 29, 2014 | Dec 31, 2013 |
| 10-K | Annual report | Mar 27, 2014 | Dec 31, 2013 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 12, 2014 | — |
| 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 |
| 4 | Insider transaction | Oct 3, 2013 | Oct 1, 2013 |
| 10-Q | Quarterly report | Aug 14, 2013 | Jun 30, 2013 |
| 8-K |
Current report
Material agreement
|
Aug 2, 2013 | Aug 2, 2013 |
| 4 | Insider transaction | Jul 3, 2013 | Jul 3, 2013 |
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.