Nierenberg Investment Management Company, Inc.

Entity
Company
Business address
19605 Ne 8 Th St, 98607 Camas, WA
Phone
360-604-8600
State of incorporation
WA
Fiscal year end
December 31
Former names
NIERENBERG INVESTMENT MANAGEMENT CO (to 5/4/2009)
13F signature
Hanna Kuehl - Chief Compliance Officer
13D/G Schedule signature
Nierenberg David - Nierenberg David
Insider ownership signature
NIERENBERG INVESTMENT MANAGEMENT COMPANY, INC. /s/ David Nierenberg Name: David Nierenberg Title: President
All SEC filings
View on sec.gov
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Nierenberg Investment Management Company, Inc. has filed 445 SEC EDGAR filings since 3/11/2004

Latest Filings

Form type Document Filing Description Filing date Reporting date File number(s)
13F-HR Open Document Open Filing Nov 12, 2025 Sep 30, 2025 028-10859
N-PX Open Document Open Filing Aug 26, 2025 Jun 30, 2025 028-10859
13F-HR Open Document Open Filing Aug 11, 2025 Jun 30, 2025 028-10859
SCHEDULE 13D/A Open Document Open Filing Jul 15, 2025
SCHEDULE 13D/A Open Document Open Filing Jun 9, 2025
13F-HR Open Document Open Filing May 13, 2025 Mar 31, 2025 028-10859
4 Open Document Open Filing Mar 31, 2025 Mar 28, 2025 001-36104
SCHEDULE 13D/A Open Document Open Filing Mar 17, 2025
SCHEDULE 13D/A Open Document Open Filing Mar 6, 2025
13F-HR Open Document Open Filing Feb 13, 2025 Dec 31, 2024 028-10859
4 Open Document Open Filing Jan 10, 2025 Jan 7, 2025 001-36104
4 Open Document Open Filing Dec 20, 2024 Dec 18, 2024 001-36104
SC 13D/A Open Document Open Filing Nov 21, 2024
13F-HR Open Document Open Filing Nov 13, 2024 Sep 30, 2024 028-10859
N-PX Open Document Open Filing Aug 22, 2024 Jun 30, 2024 028-10859
SC 13D Open Document Open Filing Aug 21, 2024
13F-HR Open Document Open Filing Aug 13, 2024 Jun 30, 2024 028-10859
SC 13G Open Document Open Filing Aug 7, 2024
4 Open Document Open Filing Aug 7, 2024 Aug 7, 2024 001-36104
3 Open Document Open Filing Aug 7, 2024 Aug 2, 2024 001-36104
13F-HR Open Document Open Filing May 13, 2024 Mar 31, 2024 028-10859
13F-HR Open Document Open Filing Feb 14, 2024 Dec 31, 2023 028-10859
SC 13D/A Open Document Open Filing Dec 21, 2023
SC 13D/A Open Document Open Filing Dec 21, 2023
SC 13D/A Open Document Open Filing Dec 19, 2023
13F-HR Open Document Open Filing Nov 13, 2023 Sep 30, 2023 028-10859
13F-HR Open Document Open Filing Aug 11, 2023 Jun 30, 2023 028-10859
SC 13D/A Open Document Open Filing Aug 8, 2023
SC 13D/A Open Document Open Filing AMENDMENT NO. 4 TO THE SCHEDULE 13D Jun 9, 2023
13F-HR Open Document Open Filing May 12, 2023 Mar 31, 2023 028-10859
SC 13G Open Document Open Filing Mar 9, 2023
13F-HR Open Document Open Filing Feb 10, 2023 Dec 31, 2022 028-10859
13F-HR Open Document Open Filing Nov 10, 2022 Sep 30, 2022 028-10859
13F-HR Open Document Open Filing Aug 12, 2022 Jun 30, 2022 028-10859
SC 13D Open Document Open Filing JULY 21, 2022 Jul 21, 2022
13F-HR Open Document Open Filing May 13, 2022 Mar 31, 2022 028-10859
SC 13D/A Open Document Open Filing AMENDMENT NO. 3 TO THE SCHEDULE 13D Mar 23, 2022
SC 13G/A Open Document Open Filing Feb 11, 2022
13F-HR Open Document Open Filing Feb 11, 2022 Dec 31, 2021 028-10859
SC 13D/A Open Document Open Filing AMENDMENT NO. 2 OF THE SCHEDULE 13D Feb 4, 2022
SC 13D/A Open Document Open Filing Nov 22, 2021
13F-HR Open Document Open Filing Nov 10, 2021 Sep 30, 2021 028-10859
13F-HR Open Document Open Filing Aug 13, 2021 Jun 30, 2021 028-10859
4 Open Document Open Filing PRIMARY DOCUMENT Jun 21, 2021 Jun 15, 2021 001-34361
13F-HR Open Document Open Filing May 14, 2021 Mar 31, 2021 028-10859
SC 13G Open Document Open Filing May 7, 2021
SC 13D/A Open Document Open Filing AMENDMENT NO. 7 TO THE SCHEDULE 13D Mar 26, 2021
13F-HR Open Document Open Filing Feb 12, 2021 Dec 31, 2020 028-10859
SC 13D/A Open Document Open Filing AMENDMENT NO. 1 TO THE SCHEDULE 13D Dec 28, 2020
SC 13D Open Document Open Filing Oct 30, 2020
SC 13D/A Open Document Open Filing AMENDMENT NO. 1 TO THE SCHEDULE 13D Sep 3, 2020
SC 13D/A Open Document Open Filing AMENDMENT NO. 1 TO THE SCHEDULE 13D Aug 26, 2020
SC 13D Open Document Open Filing SCHEDULE 13D DATED MAY 26, 2020 May 27, 2020
SC 13G Open Document Open Filing MAY 18, 2020 May 18, 2020
SC 13D/A Open Document Open Filing AMENDMENT NO. 6 TO THE SCHEDULE 13D Mar 18, 2020
4 Open Document Open Filing PRIMARY DOCUMENT Mar 17, 2020 Mar 16, 2020 001-34361
3 Open Document Open Filing PRIMARY DOCUMENT Mar 17, 2020 Mar 16, 2020 001-34361
SC 13D Open Document Open Filing Mar 16, 2020
SC 13G/A Open Document Open Filing AMENDMENT NO. 1 TO THE SCHEDULE 13G Jan 21, 2020
SC 13D/A Open Document Open Filing SC 13D/A Dec 23, 2019
SC 13D/A Open Document Open Filing MARCH 13, 2019 Mar 13, 2019
SC 13D/A Open Document Open Filing FEBRUARY 8, 2019 Feb 8, 2019
SC 13D/A Open Document Open Filing DECEMBER 19, 2018 Dec 19, 2018
SC 13G Open Document Open Filing APRIL 23, 2018 Apr 23, 2018
SC 13D Open Document Open Filing JANUARY 4, 2018 Jan 4, 2018
SC 13D/A Open Document Open Filing DECEMBER 1, 2017 Dec 1, 2017
SC 13D Open Document Open Filing 09-26-17 Sep 27, 2017
SC 13D/A Open Document Open Filing JULY 19, 2017 Jul 19, 2017
SC 13D/A Open Document Open Filing MAY 17, 2017 May 17, 2017
SC 13D/A Open Document Open Filing FEBRUARY 6, 2017 Feb 6, 2017
SC 13D/A Open Document Open Filing FEBRUARY 2, 2017 Feb 2, 2017
SC 13G/A Open Document Open Filing JANUARY 31, 2017 Jan 31, 2017
SC 13D/A Open Document Open Filing OCTOBER 7, 2016 Oct 7, 2016
SC 13D/A Open Document Open Filing FEBRUARY 24, 2016 Feb 24, 2016
SC 13G/A Open Document Open Filing FEBRUARY 16, 2016 Feb 16, 2016
13F-HR Open Document Open Filing Nov 16, 2015 Sep 30, 2015 028-10859
13F-HR Open Document Open Filing Aug 14, 2015 Jun 30, 2015 028-10859
SC 13G Open Document Open Filing JUNE 8, 2015 Jun 8, 2015
4 Open Document Open Filing FORM 4 May 18, 2015 May 14, 2015 000-12853
13F-HR Open Document Open Filing May 13, 2015 Mar 31, 2015 028-10859
SC 13D/A Open Document Open Filing APRIL 17, 2015 Apr 17, 2015
SC 13D/A Open Document Open Filing MARCH 16, 2015 Mar 16, 2015
SC 13G/A Open Document Open Filing FEBRUARY 13, 2015 Feb 13, 2015
13F-HR Open Document Open Filing Feb 12, 2015 Dec 31, 2014 028-10859
4 Open Document Open Filing FORM 4 Jan 30, 2015 Jan 30, 2015 000-12853
SC 13D/A Open Document Open Filing JANUARY 30, 2015 Jan 30, 2015
4 Open Document Open Filing FORM 4 Nov 12, 2014 Nov 7, 2014 000-26844
13F-HR Open Document Open Filing Nov 12, 2014 Sep 30, 2014 028-10859
4 Open Document Open Filing FORM 4 Nov 12, 2014 May 27, 2014 000-12853
SC 13D/A Open Document Open Filing NOVEMBER 12, 2014 Nov 12, 2014
SC 13D/A Open Document Open Filing AUGUST 25, 2014 Aug 25, 2014
13F-HR Open Document Open Filing Aug 13, 2014 Jun 30, 2014 028-10859
SC 13D/A Open Document Open Filing ROSETTA13DA-081114.HTM Aug 11, 2014
SC 13D Open Document Open Filing JUNE 16, 2014 Jun 16, 2014
4 Open Document Open Filing FORM 4 May 29, 2014 May 27, 2014 000-12853
4 Open Document Open Filing FORM 4 May 19, 2014 May 15, 2014 000-12853
13F-HR Open Document Open Filing May 12, 2014 Mar 31, 2014 028-10859
4 Open Document Open Filing FORM 4 Feb 28, 2014 Feb 27, 2014 000-26844
13F-HR Open Document Open Filing Feb 12, 2014 Dec 31, 2013 028-10859
SC 13G/A Open Document Open Filing FEBRUARY 12, 2014 Feb 12, 2014
SC 13G/A Open Document Open Filing FEBRUARY 12, 2014 Feb 12, 2014
SC 13D/A Open Document Open Filing JANUARY 21, 2014 Jan 21, 2014
4 Open Document Open Filing FORM 4 Jan 3, 2014 Jan 1, 2014 000-26844