Tri-State Generation & Transmission Association, Inc.

Entity
Company
Industry
Electric Services (Office Of Energy & Transportation)
Business address
1100 West 116 Th Avenue, 80234 Westminster, CO
Phone
303-452-6111
State of incorporation
CO
Fiscal year end
December 31
Category
Non-accelerated filer
All SEC filings
View on sec.gov
Tri-State Generation & Transmission Association, Inc. has filed 159 SEC EDGAR filings since 4/22/2015

Latest Filings

Form type Document Filing Description Filing date Reporting date File number(s)
8-K Open Document | Data Open Filing 8-K Sep 23, 2025 Sep 22, 2025 333-203560
SD Open Document | Data Open Filing SD Sep 9, 2025 333-203560
8-K Open Document | Data Open Filing 8-K Sep 2, 2025 Aug 28, 2025 333-203560
10-Q Open Document | Data Open Filing 10-Q Aug 8, 2025 Jun 30, 2025 333-203560
8-K Open Document | Data Open Filing 8-K Jul 18, 2025 Jul 17, 2025 333-203560
8-K Open Document | Data Open Filing 8-K Jul 3, 2025 Jun 27, 2025 333-203560
8-K Open Document | Data Open Filing 8-K Jun 12, 2025 Jun 6, 2025 333-203560
8-K Open Document | Data Open Filing 8-K Jun 6, 2025 Jun 5, 2025 333-203560
8-K Open Document | Data Open Filing 8-K Jun 3, 2025 Jun 2, 2025 333-203560
10-Q Open Document | Data Open Filing 10-Q May 9, 2025 Mar 31, 2025 333-203560
8-K Open Document | Data Open Filing 8-K Apr 4, 2025 Apr 3, 2025 333-203560
10-K Open Document | Data Open Filing 10-K Mar 19, 2025 Dec 31, 2024 333-203560
8-K Open Document | Data Open Filing 8-K Jan 23, 2025 Jan 21, 2025 333-203560
8-K Open Document | Data Open Filing 8-K Jan 3, 2025 Dec 30, 2024 333-203560
8-K Open Document | Data Open Filing 8-K Dec 19, 2024 Dec 17, 2024 333-203560
10-Q Open Document | Data Open Filing 10-Q Nov 8, 2024 Sep 30, 2024 333-203560
8-K Open Document | Data Open Filing 8-K Oct 15, 2024 Oct 11, 2024 333-203560
SD Open Document | Data Open Filing SD Sep 23, 2024 333-203560
8-K Open Document | Data Open Filing 8-K Sep 4, 2024 Aug 28, 2024 333-203560
10-Q Open Document | Data Open Filing 10-Q Aug 8, 2024 Jun 30, 2024 333-203560
8-K Open Document | Data Open Filing 8-K Jul 17, 2024 Jul 16, 2024 333-203560
8-K Open Document | Data Open Filing 8-K Jun 14, 2024 Jun 14, 2024 333-203560
10-Q Open Document | Data Open Filing 10-Q May 9, 2024 Mar 31, 2024 333-203560
8-K Open Document | Data Open Filing 8-K May 7, 2024 May 1, 2024 333-203560
8-K Open Document | Data Open Filing 8-K May 1, 2024 May 1, 2024 333-203560
8-K Open Document | Data Open Filing 8-K Apr 17, 2024 Apr 11, 2024 333-203560
8-K Open Document | Data Open Filing 8-K Apr 2, 2024 Mar 29, 2024 333-203560
8-K Open Document | Data Open Filing 8-K Mar 26, 2024 Mar 25, 2024 333-203560
8-K Open Document | Data Open Filing 8-K Mar 20, 2024 Mar 15, 2024 333-203560
10-K Open Document | Data Open Filing 10-K Mar 15, 2024 Dec 31, 2023 333-203560
8-K Open Document | Data Open Filing 8-K Mar 11, 2024 Mar 8, 2024 333-203560
8-K Open Document | Data Open Filing 8-K Mar 4, 2024 Feb 29, 2024 333-203560
8-K Open Document | Data Open Filing 8-K Feb 28, 2024 Feb 27, 2024 333-203560
8-K Open Document | Data Open Filing 8-K Feb 1, 2024 Jan 31, 2024 333-203560
8-K Open Document | Data Open Filing 8-K Jan 18, 2024 Jan 16, 2024 333-203560
8-K Open Document | Data Open Filing 8-K Jan 12, 2024 Jan 12, 2024 333-203560
8-K Open Document | Data Open Filing 8-K Dec 19, 2023 Dec 15, 2023 333-203560
10-Q Open Document | Data Open Filing 10-Q Nov 9, 2023 Sep 30, 2023 333-203560
8-K Open Document | Data Open Filing 8-K Oct 23, 2023 Oct 18, 2023 333-203560
8-K Open Document | Data Open Filing 8-K Oct 10, 2023 Oct 4, 2023 333-203560
8-K Open Document | Data Open Filing 8-K Sep 14, 2023 Sep 12, 2023 333-203560
8-K Open Document | Data Open Filing 8-K Aug 29, 2023 Aug 24, 2023 333-203560
8-K Open Document | Data Open Filing 8-K Aug 14, 2023 Aug 10, 2023 333-203560
10-Q Open Document | Data Open Filing 10-Q Aug 10, 2023 Jun 30, 2023 333-203560
8-K Open Document | Data Open Filing 8-K Jun 29, 2023 May 13, 2023 333-203560
8-K Open Document | Data Open Filing 8-K Jun 1, 2023 May 31, 2023 333-203560
8-K Open Document | Data Open Filing 8-K May 15, 2023 May 10, 2023 333-203560
10-Q Open Document | Data Open Filing 10-Q May 8, 2023 Mar 31, 2023 333-203560
8-K Open Document | Data Open Filing 8-K May 1, 2023 Apr 27, 2023 333-203560
10-K Open Document | Data Open Filing 10-K Mar 10, 2023 Dec 31, 2022 333-203560
10-Q Open Document | Data Open Filing 10-Q Nov 14, 2022 Sep 30, 2022 333-203560
10-Q Open Document | Data Open Filing 10-Q Aug 12, 2022 Jun 30, 2022 333-203560
8-K Open Document | Data Open Filing 8-K Aug 10, 2022 Jul 5, 2022 333-203560
8-K Open Document | Data Open Filing 8-K Jul 27, 2022 Jul 27, 2022 333-203560
8-K Open Document | Data Open Filing 8-K Jul 27, 2022 Jul 27, 2022 333-203560
8-K Open Document | Data Open Filing 8-K Jul 13, 2022 Jul 13, 2022 333-203560
8-K Open Document | Data Open Filing 8-K Jun 2, 2022 May 31, 2022 333-203560
8-K Open Document | Data Open Filing 8-K May 17, 2022 May 16, 2022 333-203560
10-Q Open Document | Data Open Filing 10-Q May 9, 2022 Mar 31, 2022 333-203560
8-K Open Document | Data Open Filing 8-K Apr 25, 2022 Apr 25, 2022 333-203560
8-K Open Document | Data Open Filing 8-K Apr 19, 2022 Apr 18, 2022 333-203560
10-K Open Document | Data Open Filing 10-K Mar 9, 2022 Dec 31, 2021 333-203560
8-K Open Document | Data Open Filing 8-K Jan 12, 2022 Jan 11, 2022 333-203560
8-K Open Document | Data Open Filing 8-K Dec 20, 2021 Dec 20, 2021 333-203560
10-Q Open Document | Data Open Filing 10-Q Nov 10, 2021 Sep 30, 2021 333-203560
8-K Open Document | Data Open Filing 8-K Sep 1, 2021 Aug 30, 2021 333-203560
10-Q Open Document | Data Open Filing 10-Q Aug 9, 2021 Jun 30, 2021 333-203560
10-Q Open Document | Data Open Filing 10-Q May 7, 2021 Mar 31, 2021 333-203560
10-K Open Document | Data Open Filing 10-K Mar 5, 2021 Dec 31, 2020 333-203560
10-Q Open Document | Data Open Filing 10-Q Nov 12, 2020 Sep 30, 2020 333-203560
8-K Open Document Open Filing 8-K Oct 15, 2020 Oct 13, 2020 333-203560
8-K Open Document Open Filing 8-K Sep 16, 2020 Sep 16, 2020 333-203560
8-K Open Document Open Filing 8-K Aug 14, 2020 Aug 13, 2020 333-203560
10-Q Open Document | Data Open Filing 10-Q Aug 12, 2020 Jun 30, 2020 333-203560
8-K Open Document Open Filing 8-K Jul 30, 2020 Jul 27, 2020 333-203560
8-K Open Document Open Filing 8-K Jul 1, 2020 Jun 29, 2020 333-203560
8-K Open Document Open Filing 8-K Jun 26, 2020 Jun 24, 2020 333-203560
8-K Open Document Open Filing 8-K May 22, 2020 May 21, 2020 333-203560
10-Q Open Document | Data Open Filing 10-Q May 14, 2020 Mar 31, 2020 333-203560
8-K Open Document Open Filing 8-K Apr 23, 2020 Apr 22, 2020 333-203560
8-K Open Document Open Filing 8-K Apr 13, 2020 Apr 10, 2020 333-203560
8-K Open Document Open Filing 8-K Mar 24, 2020 Mar 24, 2020 333-203560
10-K Open Document | Data Open Filing 10-K Mar 12, 2020 Dec 31, 2019 333-203560
8-K Open Document Open Filing 8-K Feb 3, 2020 Jan 30, 2020 333-203560
8-K Open Document Open Filing 8-K Jan 27, 2020 Jan 23, 2020 333-203560
8-K Open Document Open Filing 8-K Jan 9, 2020 Jan 8, 2020 333-203560
8-K Open Document Open Filing 8-K Jan 7, 2020 Jan 3, 2020 333-203560
8-K Open Document Open Filing 8-K Nov 27, 2019 Nov 25, 2019 333-203560
10-Q Open Document | Data Open Filing 10-Q Nov 13, 2019 Sep 30, 2019 333-203560
8-K Open Document Open Filing 8-K Sep 25, 2019 Sep 24, 2019 333-203560
10-Q Open Document | Data Open Filing 10-Q Aug 9, 2019 Jun 30, 2019 333-203560
8-K Open Document Open Filing 8-K Jul 9, 2019 Jul 8, 2019 333-203560
8-K Open Document Open Filing 8-K Jun 19, 2019 Jun 17, 2019 333-203560
10-Q Open Document | Data Open Filing 10-Q May 10, 2019 Mar 31, 2019 333-203560
8-K Open Document Open Filing 8-K Apr 22, 2019 Apr 17, 2019 333-203560
8-K Open Document Open Filing 8-K Apr 8, 2019 Apr 3, 2019 333-203560
8-K Open Document Open Filing 8-K Mar 26, 2019 Mar 22, 2019 333-203560
10-K Open Document | Data Open Filing 10-K Mar 8, 2019 Dec 31, 2018 333-203560
8-K Open Document Open Filing 8-K Feb 13, 2019 Feb 12, 2019 333-203560
10-Q Open Document | Data Open Filing 10-Q Nov 9, 2018 Sep 30, 2018 333-203560
8-K Open Document Open Filing 8-K Sep 26, 2018 Sep 20, 2018 333-203560
8-K Open Document Open Filing 8-K Aug 27, 2018 Aug 23, 2018 333-203560
10-Q Open Document | Data Open Filing 10-Q Aug 10, 2018 Jun 30, 2018 333-203560
8-K Open Document Open Filing 8-K Jul 6, 2018 Jul 6, 2018 333-203560
8-K Open Document Open Filing 8-K Jun 29, 2018 Jun 27, 2018 333-203560
8-K/A Open Document Open Filing 8-K/A Jun 8, 2018 May 30, 2018 333-203560
8-K Open Document Open Filing 8-K Jun 5, 2018 May 30, 2018 333-203560
8-K Open Document Open Filing 8-K May 21, 2018 May 18, 2018 333-203560
10-Q Open Document | Data Open Filing 10-Q May 4, 2018 Mar 31, 2018 333-203560
8-K Open Document Open Filing 8-K Apr 25, 2018 Apr 25, 2018 333-203560
8-K Open Document Open Filing 8-K Apr 2, 2018 Mar 28, 2018 333-203560
10-K Open Document | Data Open Filing 10-K Mar 9, 2018 Dec 31, 2017 333-203560
8-K Open Document Open Filing 8-K Feb 6, 2018 Feb 2, 2018 333-203560
8-K Open Document Open Filing 8-K Jan 5, 2018 Jan 3, 2018 333-203560
8-K Open Document Open Filing 8-K Dec 21, 2017 Dec 20, 2017 333-203560
8-K Open Document Open Filing 8-K Dec 1, 2017 Nov 29, 2017 333-203560
8-K Open Document Open Filing 8-K Nov 29, 2017 Nov 29, 2017 333-203560
10-Q Open Document | Data Open Filing 10-Q Nov 8, 2017 Sep 30, 2017 333-203560
8-K Open Document Open Filing 8-K Oct 4, 2017 Oct 2, 2017 333-203560
8-K Open Document Open Filing 8-K Sep 28, 2017 Sep 27, 2017 333-203560
8-K Open Document Open Filing 8-K Sep 21, 2017 Sep 19, 2017 333-203560
10-Q Open Document | Data Open Filing 10-Q Aug 14, 2017 Jun 30, 2017 333-203560
8-K Open Document | Data Open Filing Jul 17, 2017 Jul 17, 2017 333-203560
8-K Open Document Open Filing 8-K Jun 21, 2017 Jun 19, 2017 333-203560
8-K/A Open Document Open Filing 8-K/A Jun 8, 2017 May 31, 2017 333-203560
8-K Open Document Open Filing 8-K Jun 1, 2017 May 31, 2017 333-203560
10-Q Open Document | Data Open Filing 10-Q May 5, 2017 Mar 31, 2017 333-203560
8-K Open Document Open Filing 8-K Mar 20, 2017 Mar 16, 2017 333-203560
10-K Open Document | Data Open Filing 10-K Mar 10, 2017 Dec 31, 2016 333-203560
10-Q Open Document | Data Open Filing 10-Q Nov 4, 2016 Sep 30, 2016 333-203560
8-K Open Document Open Filing 8-K Sep 1, 2016 Sep 1, 2016 333-203560
10-Q Open Document | Data Open Filing 10-Q Aug 9, 2016 Jun 30, 2016 333-203560
8-K Open Document Open Filing 8-K Jul 1, 2016 Jun 30, 2016 333-203560
EFFECT Open Document Open Filing Jun 27, 2016 333-212006
424B4 Open Document Open Filing 424B4 Jun 27, 2016 333-212006
8-K Open Document Open Filing 8-K Jun 27, 2016 Jun 21, 2016 333-203560
CORRESP Open Document Open Filing Jun 23, 2016
CORRESP Open Document Open Filing Jun 22, 2016
UPLOAD Open Document Open Filing Jun 20, 2016
S-4 Open Document | Data Open Filing S-4 Jun 14, 2016 333-212006
8-K Open Document Open Filing 8-K May 23, 2016 May 23, 2016 333-203560
8-K Open Document Open Filing 8-K May 13, 2016 May 12, 2016 333-203560
10-Q Open Document | Data Open Filing 10-Q May 12, 2016 Mar 31, 2016 333-203560
8-K Open Document | Data Open Filing 8-K Apr 29, 2016 Apr 29, 2016 333-203560
8-K Open Document Open Filing 8-K Apr 22, 2016 Apr 22, 2016 333-203560
10-K Open Document | Data Open Filing 10-K Mar 14, 2016 Dec 31, 2015 333-203560
10-Q Open Document | Data Open Filing 10-Q Nov 12, 2015 Sep 30, 2015 333-203560
8-K Open Document Open Filing 8-K Sep 22, 2015 Sep 22, 2015 333-203560
10-Q Open Document | Data Open Filing 10-Q Aug 21, 2015 Jun 30, 2015 333-203560
8-K Open Document Open Filing 8-K Aug 3, 2015 Aug 3, 2015 333-203560
424B1 Open Document Open Filing 424B1 Jul 30, 2015 333-203560
EFFECT Open Document Open Filing Jul 29, 2015 333-203560
CORRESP Open Document Open Filing Jul 27, 2015
CORRESP Open Document Open Filing Jul 17, 2015
UPLOAD Open Document Open Filing Jul 10, 2015
CORRESP Open Document Open Filing Jun 18, 2015
S-4/A Open Document Open Filing S-4/A Jun 18, 2015 333-203560
UPLOAD Open Document Open Filing May 26, 2015
S-4 Open Document Open Filing S-4 Apr 22, 2015 333-203560