Wright Investors Service Holdings, Inc.

Symbol
IWSH on OTC
Entity
Company
Industry
Investment Advice (Office Of Finance)
Business address
118 North Bedford Road, Suite 100, 10549 Mt Kisco, NY
Phone
(914) 242-5700
State of incorporation
DE
Fiscal year end
December 31
Category
Non-accelerated filer
Smaller reporting company
Former names
NATIONAL PATENT DEVELOPMENT CORP (to 1/31/2013)
All SEC filings
View on sec.gov
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Wright Investors Service Holdings, Inc. has filed 530 SEC EDGAR filings since 2/12/2004

Latest Filings

Form type Document Filing Description Filing date Reporting date File number(s)
10-Q Open Document | Data Open Filing Nov 14, 2025 Sep 30, 2025 000-50587
10-Q Open Document | Data Open Filing Aug 13, 2025 Jun 30, 2025 000-50587
10-Q Open Document | Data Open Filing May 15, 2025 Mar 31, 2025 000-50587
10-K/A Open Document | Data Open Filing AMENDMENT NO. 1 Apr 22, 2025 Dec 31, 2024 000-50587
10-K Open Document | Data Open Filing Mar 27, 2025 Dec 31, 2024 000-50587
10-Q Open Document | Data Open Filing Nov 13, 2024 Sep 30, 2024 000-50587
10-Q Open Document | Data Open Filing Aug 13, 2024 Jun 30, 2024 000-50587
10-Q Open Document | Data Open Filing May 15, 2024 Mar 31, 2024 000-50587
10-K/A Open Document | Data Open Filing AMENDMENT NO. 1 Apr 29, 2024 Dec 31, 2023 000-50587
10-K Open Document | Data Open Filing Mar 27, 2024 Dec 31, 2023 000-50587
10-Q Open Document | Data Open Filing Nov 13, 2023 Sep 30, 2023 000-50587
10-Q Open Document | Data Open Filing Aug 11, 2023 Jun 30, 2023 000-50587
10-Q Open Document | Data Open Filing May 12, 2023 Mar 31, 2023 000-50587
10-K/A Open Document | Data Open Filing Apr 27, 2023 Dec 31, 2022 000-50587
10-K Open Document | Data Open Filing Mar 28, 2023 Dec 31, 2022 000-50587
4 Open Document Open Filing PRIMARY DOCUMENT Mar 10, 2023 Mar 9, 2023
4 Open Document Open Filing PRIMARY DOCUMENT Mar 10, 2023 Mar 9, 2023
5 Open Document Open Filing Feb 14, 2023 Dec 31, 2022
10-Q Open Document | Data Open Filing Nov 14, 2022 Sep 30, 2022 000-50587
10-Q Open Document | Data Open Filing Aug 15, 2022 Jun 30, 2022 000-50587
10-Q Open Document | Data Open Filing May 16, 2022 Mar 31, 2022 000-50587
4 Open Document Open Filing PRIMARY DOCUMENT Apr 29, 2022 Apr 28, 2022
4 Open Document Open Filing PRIMARY DOCUMENT Apr 29, 2022 Apr 28, 2022
10-K/A Open Document | Data Open Filing AMENDMENT NO. 1 Apr 20, 2022 Dec 31, 2021 000-50587
10-K Open Document | Data Open Filing Mar 11, 2022 Dec 31, 2021 000-50587
10-Q Open Document | Data Open Filing Nov 12, 2021 Sep 30, 2021 000-50587
10-Q Open Document | Data Open Filing Aug 11, 2021 Jun 30, 2021 000-50587
4 Open Document Open Filing PRIMARY DOCUMENT Jul 15, 2021 Jul 13, 2021
4 Open Document Open Filing PRIMARY DOCUMENT Jul 15, 2021 Jul 13, 2021
10-Q Open Document | Data Open Filing May 13, 2021 Mar 31, 2021 000-50587
10-K/A Open Document Open Filing AMENDMENT NO. 1 Apr 23, 2021 Dec 31, 2020 000-50587
10-K Open Document | Data Open Filing Mar 12, 2021 Dec 31, 2020 000-50587
SC 13D/A Open Document Open Filing FORMSC 13D/A Jan 14, 2021 005-80180
SC 13D/A Open Document Open Filing AMENDMENT NO. 12 Jan 4, 2021 005-80180
SC 13D/A Open Document Open Filing WILLIAM H. MILLER III Jan 4, 2021 005-80180
4 Open Document Open Filing Jan 4, 2021 Dec 30, 2020
4 Open Document Open Filing PRIMARY DOCUMENT Dec 31, 2020 Dec 30, 2020
10-Q Open Document | Data Open Filing Nov 12, 2020 Sep 30, 2020 000-50587
8-K Open Document Open Filing Sep 15, 2020 Sep 15, 2020 000-50587
10-Q Open Document | Data Open Filing Aug 13, 2020 Jun 30, 2020 000-50587
10-Q Open Document | Data Open Filing May 13, 2020 Mar 31, 2020 000-50587
10-K/A Open Document Open Filing AMENDMENT NO. 1 Apr 28, 2020 Dec 31, 2019 000-50587
10-K Open Document | Data Open Filing Mar 30, 2020 Dec 31, 2019 000-50587
10-Q Open Document | Data Open Filing Nov 13, 2019 Sep 30, 2019 000-50587
8-K Open Document Open Filing Oct 23, 2019 Oct 22, 2019 000-50587
4 Open Document Open Filing PRIMARY DOCUMENT Oct 8, 2019 Oct 8, 2019
4 Open Document Open Filing PRIMARY DOCUMENT Oct 8, 2019 Oct 8, 2019
DEF 14A Open Document Open Filing Sep 23, 2019 Oct 22, 2019 000-50587
SC 13D Open Document Open Filing SC 13D Sep 12, 2019 005-80180
SC 13D/A Open Document Open Filing Sep 3, 2019 005-80180
4 Open Document Open Filing Aug 30, 2019 Aug 30, 2019
SC 13D/A Open Document Open Filing AMENDMENT NO. 11 Aug 30, 2019 005-80180
4 Open Document Open Filing PRIMARY DOCUMENT Aug 30, 2019 Aug 30, 2019
4 Open Document Open Filing PRIMARY DOCUMENT Aug 30, 2019 Aug 30, 2019
3 Open Document Open Filing Aug 30, 2019 Aug 30, 2019
SC 13D/A Open Document Open Filing WILLIAM H. MILLER III Aug 30, 2019 005-80180
8-K Open Document Open Filing Aug 12, 2019 Aug 12, 2019 000-50587
10-Q Open Document | Data Open Filing Aug 7, 2019 Jun 30, 2019 000-50587
SC 13D/A Open Document Open Filing Aug 1, 2019 005-80180
4 Open Document Open Filing PRIMARY DOCUMENT Jul 31, 2019 Jul 29, 2019
SC 13D/A Open Document Open Filing Jul 30, 2019 005-80180
4/A Open Document Open Filing Jul 24, 2019 Jul 23, 2019
3 Open Document Open Filing PRIMARY DOCUMENT Jul 22, 2019 Jul 11, 2019
SC 13D/A Open Document Open Filing Jul 19, 2019 005-80180
SC 13D Open Document Open Filing MILLER VALUE PARTNERS, LLC Jul 17, 2019 005-80180
4 Open Document Open Filing PRIMARY DOCUMENT Jul 16, 2019 Jul 12, 2019
SC 13D/A Open Document Open Filing Jul 15, 2019 005-80180
SC 13D/A Open Document Open Filing Jun 21, 2019 005-80180
DFAN14A Open Document Open Filing Jun 18, 2019 000-50587
10-Q Open Document | Data Open Filing May 15, 2019 Mar 31, 2019 000-50587
10-K/A Open Document Open Filing AMENDMENT NO. 1 Apr 30, 2019 Dec 31, 2018 000-50587
4 Open Document Open Filing PRIMARY DOCUMENT Apr 15, 2019 Apr 15, 2019
4 Open Document Open Filing PRIMARY DOCUMENT Apr 15, 2019 Apr 15, 2019
SC 13D/A Open Document Open Filing Apr 3, 2019 005-80180
10-K Open Document | Data Open Filing Mar 29, 2019 Dec 31, 2018 000-50587
3 Open Document Open Filing PRIMARY DOCUMENT Mar 28, 2019 Mar 26, 2019
8-K Open Document Open Filing Mar 28, 2019 Mar 25, 2019 000-50587
SC 13D Open Document Open Filing Mar 25, 2019 005-80180
4 Open Document Open Filing PRIMARY DOCUMENT Feb 15, 2019 Feb 13, 2019
3 Open Document Open Filing PRIMARY DOCUMENT Feb 15, 2019 Feb 13, 2019
8-K Open Document Open Filing Feb 15, 2019 Feb 12, 2019 000-50587
8-K Open Document Open Filing Nov 21, 2018 Nov 15, 2018 000-50587
10-Q Open Document | Data Open Filing Nov 6, 2018 Sep 30, 2018 000-50587
8-K Open Document Open Filing Nov 2, 2018 Nov 1, 2018 000-50587
4 Open Document Open Filing PRIMARY DOCUMENT Oct 22, 2018 Oct 22, 2018
4 Open Document Open Filing PRIMARY DOCUMENT Oct 22, 2018 Oct 22, 2018
8-K Open Document Open Filing Oct 4, 2018 Oct 4, 2018 000-50587
10-Q Open Document | Data Open Filing Aug 9, 2018 Jun 30, 2018 000-50587
4 Open Document Open Filing PRIMARY DOCUMENT Jul 30, 2018 Jul 30, 2018
4 Open Document Open Filing PRIMARY DOCUMENT Jul 30, 2018 Jul 30, 2018
4 Open Document Open Filing PRIMARY DOCUMENT Jul 30, 2018 Jul 30, 2018
8-K Open Document Open Filing Jul 17, 2018 Jul 16, 2018 000-50587
DEFM14A Open Document Open Filing Jun 8, 2018 000-50587
8-K Open Document Open Filing May 18, 2018 May 18, 2018 000-50587
PREM14A Open Document Open Filing May 18, 2018 Jul 16, 2018 000-50587
SC 13D/A Open Document Open Filing May 14, 2018 005-80180
10-Q Open Document | Data Open Filing May 10, 2018 Mar 31, 2018 000-50587
8-K Open Document Open Filing May 10, 2018 May 10, 2018 000-50587
10-K/A Open Document Open Filing AMENDMENT NO. 1 Apr 27, 2018 Dec 31, 2017 000-50587
8-K Open Document Open Filing Apr 12, 2018 Apr 11, 2018 000-50587
DEFA14A Open Document Open Filing Apr 12, 2018 000-50587
8-K Open Document Open Filing Apr 3, 2018 Apr 2, 2018 000-50587
10-K Open Document | Data Open Filing Mar 26, 2018 Dec 31, 2017 000-50587
8-K Open Document Open Filing Mar 26, 2018 Mar 26, 2018 000-50587
8-K Open Document Open Filing Mar 16, 2018 Mar 15, 2018 000-50587
4 Open Document Open Filing PRIMARY DOCUMENT Feb 13, 2018 Feb 12, 2018
4 Open Document Open Filing PRIMARY DOCUMENT Feb 13, 2018 Feb 12, 2018
4 Open Document Open Filing PRIMARY DOCUMENT Feb 13, 2018 Feb 12, 2018
10-Q Open Document | Data Open Filing Nov 7, 2017 Sep 30, 2017 000-50587
8-K Open Document Open Filing Nov 7, 2017 Nov 7, 2017 000-50587
10-Q Open Document | Data Open Filing Aug 9, 2017 Jun 30, 2017 000-50587
8-K Open Document Open Filing Aug 9, 2017 Aug 9, 2017 000-50587
4 Open Document Open Filing PRIMARY DOCUMENT Jul 25, 2017 Jul 25, 2017
4 Open Document Open Filing PRIMARY DOCUMENT Jul 25, 2017 Jul 25, 2017
4 Open Document Open Filing PRIMARY DOCUMENT Jul 25, 2017 Jul 25, 2017
10-Q Open Document | Data Open Filing May 10, 2017 Mar 31, 2017 000-50587
8-K Open Document Open Filing May 10, 2017 May 10, 2017 000-50587
10-K/A Open Document Open Filing AMENDMENT NO. 1 Apr 18, 2017 Dec 31, 2016 000-50587
SC 13D/A Open Document Open Filing Apr 13, 2017 005-80180
10-K Open Document | Data Open Filing Mar 24, 2017 Dec 31, 2016 000-50587
8-K Open Document Open Filing Mar 24, 2017 Mar 24, 2017 000-50587
4 Open Document Open Filing PRIMARY DOCUMENT Mar 3, 2017 Mar 1, 2017
4 Open Document Open Filing PRIMARY DOCUMENT Mar 3, 2017 Mar 1, 2017
4 Open Document Open Filing PRIMARY DOCUMENT Mar 3, 2017 Mar 1, 2017
10-Q Open Document | Data Open Filing FOR THE QUARTERLY PERIOD ENDED SEPTEMBER 30, 2016 Nov 8, 2016 Sep 30, 2016 000-50587
8-K Open Document Open Filing Nov 8, 2016 Nov 8, 2016 000-50587
4 Open Document Open Filing PRIMARY DOCUMENT Oct 25, 2016 Oct 24, 2016
4 Open Document Open Filing PRIMARY DOCUMENT Oct 25, 2016 Oct 24, 2016
4 Open Document Open Filing PRIMARY DOCUMENT Oct 25, 2016 Oct 24, 2016
4 Open Document Open Filing PRIMARY DOCUMENT Oct 7, 2016 Oct 6, 2016
4 Open Document Open Filing FORM 4 Oct 7, 2016 Oct 6, 2016
4 Open Document Open Filing PRIMARY DOCUMENT Aug 25, 2016 Aug 24, 2016
10-Q Open Document | Data Open Filing FOR THE QUARTERLY PERIOD ENDED JUNE 30, 2016 Aug 12, 2016 Aug 5, 2016 000-50587
8-K Open Document Open Filing Aug 12, 2016 Aug 12, 2016 000-50587
4 Open Document Open Filing PRIMARY DOCUMENT Jun 14, 2016 Jun 13, 2016
4 Open Document Open Filing PRIMARY DOCUMENT Jun 14, 2016 Jun 13, 2016
4 Open Document Open Filing PRIMARY DOCUMENT Jun 14, 2016 Jun 13, 2016
10-Q Open Document | Data Open Filing FOR THE QUARTERLY PERIOD ENDED MARCH 31, 2016 May 11, 2016 Mar 31, 2016 000-50587
8-K Open Document | Data Open Filing May 11, 2016 May 11, 2016 000-50587
10-K/A Open Document Open Filing AMENDMENT NO. 1 Apr 25, 2016 Dec 31, 2015 000-50587
SC 13D/A Open Document Open Filing Mar 29, 2016 005-80180
10-K Open Document | Data Open Filing FOR THE FISCAL YEAR ENDED DECEMBER 31, 2015 Mar 24, 2016 Dec 31, 2015 000-50587
8-K Open Document | Data Open Filing Mar 24, 2016 Mar 24, 2016 000-50587
4 Open Document Open Filing PRIMARY DOCUMENT Mar 8, 2016 Mar 7, 2016
4 Open Document Open Filing PRIMARY DOCUMENT Mar 8, 2016 Mar 7, 2016
4 Open Document Open Filing PRIMARY DOCUMENT Feb 3, 2016 Feb 2, 2016
4 Open Document Open Filing PRIMARY DOCUMENT Feb 3, 2016 Feb 2, 2016
4 Open Document Open Filing PRIMARY DOCUMENT Feb 3, 2016 Feb 2, 2016
3 Open Document Open Filing OWNERSHIP DOCUMENT Dec 21, 2015 Dec 18, 2015
8-K Open Document Open Filing Dec 18, 2015 Dec 18, 2015 000-50587
10-Q Open Document | Data Open Filing FOR THE QUARTERLY PERIOD ENDED SEPTEMBER 30, 2015 Nov 6, 2015 Sep 30, 2015 000-50587
8-K Open Document Open Filing Nov 6, 2015 Nov 6, 2015 000-50587
4 Open Document Open Filing PRIMARY DOCUMENT Oct 22, 2015 Oct 20, 2015
4 Open Document Open Filing PRIMARY DOCUMENT Oct 22, 2015 Oct 20, 2015
4 Open Document Open Filing PRIMARY DOCUMENT Oct 22, 2015 Oct 20, 2015
10-Q Open Document | Data Open Filing FOR THE QUARTERLY PERIOD ENDED JUNE 30, 2015 Aug 14, 2015 Jun 30, 2015 000-50587
8-K Open Document Open Filing Aug 14, 2015 Aug 14, 2015 000-50587
4 Open Document Open Filing PRIMARY DOCUMENT Jul 21, 2015 Jul 20, 2015
4 Open Document Open Filing PRIMARY DOCUMENT Jul 21, 2015 Jul 20, 2015
4 Open Document Open Filing PRIMARY DOCUMENT Jul 21, 2015 Jul 20, 2015
10-Q Open Document | Data Open Filing FOR THE QUARTERLY PERIOD ENDED MARCH 31, 2015 May 13, 2015 Mar 31, 2015 000-50587
4 Open Document Open Filing PRIMARY DOCUMENT May 5, 2015 May 4, 2015
4 Open Document Open Filing PRIMARY DOCUMENT May 5, 2015 May 4, 2015
4 Open Document Open Filing PRIMARY DOCUMENT May 5, 2015 May 4, 2015
10-K/A Open Document Open Filing AMENDMENT NO. 2 Apr 27, 2015 Dec 31, 2014 000-50587
4 Open Document Open Filing PRIMARY DOCUMENT Apr 1, 2015 Mar 31, 2015
3 Open Document Open Filing PRIMARY DOCUMENT Apr 1, 2015 Mar 31, 2015
8-K Open Document Open Filing Mar 31, 2015 Mar 30, 2015 000-50587
10-K/A Open Document Open Filing AMENDMENT NO. 1 Mar 24, 2015 Dec 31, 2014 000-50587
10-K Open Document | Data Open Filing FOR THE FISCAL YEAR ENDED DECEMBER 31, 2014 Mar 23, 2015 Dec 31, 2014 000-50587
SC 13G/A Open Document Open Filing SC 13G/A Feb 3, 2015 005-80180
8-K Open Document Open Filing Jan 30, 2015 Jan 30, 2015 000-50587
4 Open Document Open Filing PRIMARY DOCUMENT Jan 20, 2015 Jan 19, 2015
3 Open Document Open Filing PRIMARY DOCUMENT Jan 20, 2015 Jan 14, 2015
8-K Open Document Open Filing Jan 20, 2015 Jan 14, 2015 000-50587
8-K Open Document Open Filing Dec 16, 2014 Dec 16, 2014 000-50587
10-Q Open Document | Data Open Filing FOR THE QUARTERLY PERIOD ENDED SEPTEMBER 30, 2014 Nov 12, 2014 Sep 30, 2014 000-50587
4 Open Document Open Filing PRIMARY DOCUMENT Oct 24, 2014 Oct 23, 2014
4 Open Document Open Filing PRIMARY DOCUMENT Oct 23, 2014 Oct 23, 2014
10-Q Open Document | Data Open Filing FOR THE QUARTERLY PERIOD ENDED JUNE 30, 2014 Aug 12, 2014 Jun 30, 2014 000-50587
4 Open Document Open Filing PRIMARY DOCUMENT Jul 29, 2014 Jul 28, 2014
4 Open Document Open Filing PRIMARY DOCUMENT Jul 29, 2014 Jul 28, 2014
SC 13D/A Open Document Open Filing May 15, 2014 005-80180
10-Q Open Document | Data Open Filing FOR THE QUARTERLY PERIOD ENDED MARCH 31, 2014 May 13, 2014 Mar 31, 2014 000-50587
4 Open Document Open Filing OWNERSHIP DOCUMENT May 9, 2014 May 7, 2014
4 Open Document Open Filing PRIMARY DOCUMENT May 9, 2014 May 7, 2014
10-K/A Open Document Open Filing AMENDMENT NO. 1 Apr 29, 2014 Dec 31, 2013 000-50587
10-K Open Document | Data Open Filing FOR THE FISCAL YEAR ENDED DECEMBER 31, 2013 Mar 27, 2014 Dec 31, 2013 000-50587
SC 13G/A Open Document Open Filing SC 13G/A Feb 12, 2014 005-80180
8-K Open Document Open Filing Jan 30, 2014 Jan 24, 2014 000-50587