Tri-State Generation & Transmission Association, Inc. SEC EDGAR Filings (CIK 0001637880)

SEC EDGAR filings, ownership reports, and insider transactions for Tri-State Generation & Transmission Association, Inc..

Industry
Electric Services (Office Of Energy & Transportation)
Business address
1100 West 116 Th Avenue, Westminster, CO, 80234
State of incorporation
CO
Fiscal year end
31 December
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Tri-State Generation & Transmission Association, Inc. has filed 163 SEC EDGAR filings since 22 Apr 2015

Latest Filings

Recent SEC filings for Tri-State Generation & Transmission Association, Inc. including 8-K, 10-Q, SD and more.

Form type Document Filing Description Filing date Reporting date File number(s)
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 03 Feb 2026 28 Jan 2026 333-203560
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 15 Jan 2026 09 Jan 2026 333-203560
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 26 Nov 2025 26 Nov 2025 333-203560
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 07 Nov 2025 30 Sep 2025 333-203560
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 23 Sep 2025 22 Sep 2025 333-203560
SD Open SD document | Open XBRL data View SEC filing for SD SD 09 Sep 2025 333-203560
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 02 Sep 2025 28 Aug 2025 333-203560
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 08 Aug 2025 30 Jun 2025 333-203560
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 18 Jul 2025 17 Jul 2025 333-203560
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 03 Jul 2025 27 Jun 2025 333-203560
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 12 Jun 2025 06 Jun 2025 333-203560
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 06 Jun 2025 05 Jun 2025 333-203560
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 03 Jun 2025 02 Jun 2025 333-203560
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 09 May 2025 31 Mar 2025 333-203560
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 04 Apr 2025 03 Apr 2025 333-203560
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K 10-K 19 Mar 2025 31 Dec 2024 333-203560
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 23 Jan 2025 21 Jan 2025 333-203560
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 03 Jan 2025 30 Dec 2024 333-203560
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 19 Dec 2024 17 Dec 2024 333-203560
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 08 Nov 2024 30 Sep 2024 333-203560
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 15 Oct 2024 11 Oct 2024 333-203560
SD Open SD document | Open XBRL data View SEC filing for SD SD 23 Sep 2024 333-203560
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 04 Sep 2024 28 Aug 2024 333-203560
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 08 Aug 2024 30 Jun 2024 333-203560
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 17 Jul 2024 16 Jul 2024 333-203560
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 14 Jun 2024 14 Jun 2024 333-203560
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 09 May 2024 31 Mar 2024 333-203560
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 07 May 2024 01 May 2024 333-203560
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 01 May 2024 01 May 2024 333-203560
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 17 Apr 2024 11 Apr 2024 333-203560
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 02 Apr 2024 29 Mar 2024 333-203560
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 26 Mar 2024 25 Mar 2024 333-203560
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 20 Mar 2024 15 Mar 2024 333-203560
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K 10-K 15 Mar 2024 31 Dec 2023 333-203560
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 11 Mar 2024 08 Mar 2024 333-203560
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 04 Mar 2024 29 Feb 2024 333-203560
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 28 Feb 2024 27 Feb 2024 333-203560
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 01 Feb 2024 31 Jan 2024 333-203560
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 18 Jan 2024 16 Jan 2024 333-203560
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 12 Jan 2024 12 Jan 2024 333-203560
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 19 Dec 2023 15 Dec 2023 333-203560
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 09 Nov 2023 30 Sep 2023 333-203560
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 23 Oct 2023 18 Oct 2023 333-203560
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 10 Oct 2023 04 Oct 2023 333-203560
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 14 Sep 2023 12 Sep 2023 333-203560
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 29 Aug 2023 24 Aug 2023 333-203560
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 14 Aug 2023 10 Aug 2023 333-203560
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 10 Aug 2023 30 Jun 2023 333-203560
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 29 Jun 2023 13 May 2023 333-203560
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 01 Jun 2023 31 May 2023 333-203560
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 15 May 2023 10 May 2023 333-203560
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 08 May 2023 31 Mar 2023 333-203560
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 01 May 2023 27 Apr 2023 333-203560
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K 10-K 10 Mar 2023 31 Dec 2022 333-203560
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 14 Nov 2022 30 Sep 2022 333-203560
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 12 Aug 2022 30 Jun 2022 333-203560
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 10 Aug 2022 05 Jul 2022 333-203560
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 27 Jul 2022 27 Jul 2022 333-203560
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 27 Jul 2022 27 Jul 2022 333-203560
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 13 Jul 2022 13 Jul 2022 333-203560
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 02 Jun 2022 31 May 2022 333-203560
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 17 May 2022 16 May 2022 333-203560
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 09 May 2022 31 Mar 2022 333-203560
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 25 Apr 2022 25 Apr 2022 333-203560
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 19 Apr 2022 18 Apr 2022 333-203560
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K 10-K 09 Mar 2022 31 Dec 2021 333-203560
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 12 Jan 2022 11 Jan 2022 333-203560
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 20 Dec 2021 20 Dec 2021 333-203560
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 10 Nov 2021 30 Sep 2021 333-203560
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 01 Sep 2021 30 Aug 2021 333-203560
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 09 Aug 2021 30 Jun 2021 333-203560
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 07 May 2021 31 Mar 2021 333-203560
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K 10-K 05 Mar 2021 31 Dec 2020 333-203560
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 12 Nov 2020 30 Sep 2020 333-203560
8-K Open 8-K document View SEC filing for 8-K 8-K 15 Oct 2020 13 Oct 2020 333-203560
8-K Open 8-K document View SEC filing for 8-K 8-K 16 Sep 2020 16 Sep 2020 333-203560
8-K Open 8-K document View SEC filing for 8-K 8-K 14 Aug 2020 13 Aug 2020 333-203560
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 12 Aug 2020 30 Jun 2020 333-203560
8-K Open 8-K document View SEC filing for 8-K 8-K 30 Jul 2020 27 Jul 2020 333-203560
8-K Open 8-K document View SEC filing for 8-K 8-K 01 Jul 2020 29 Jun 2020 333-203560
8-K Open 8-K document View SEC filing for 8-K 8-K 26 Jun 2020 24 Jun 2020 333-203560
8-K Open 8-K document View SEC filing for 8-K 8-K 22 May 2020 21 May 2020 333-203560
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 14 May 2020 31 Mar 2020 333-203560
8-K Open 8-K document View SEC filing for 8-K 8-K 23 Apr 2020 22 Apr 2020 333-203560
8-K Open 8-K document View SEC filing for 8-K 8-K 13 Apr 2020 10 Apr 2020 333-203560
8-K Open 8-K document View SEC filing for 8-K 8-K 24 Mar 2020 24 Mar 2020 333-203560
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K 10-K 12 Mar 2020 31 Dec 2019 333-203560
8-K Open 8-K document View SEC filing for 8-K 8-K 03 Feb 2020 30 Jan 2020 333-203560
8-K Open 8-K document View SEC filing for 8-K 8-K 27 Jan 2020 23 Jan 2020 333-203560
8-K Open 8-K document View SEC filing for 8-K 8-K 09 Jan 2020 08 Jan 2020 333-203560
8-K Open 8-K document View SEC filing for 8-K 8-K 07 Jan 2020 03 Jan 2020 333-203560
8-K Open 8-K document View SEC filing for 8-K 8-K 27 Nov 2019 25 Nov 2019 333-203560
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 13 Nov 2019 30 Sep 2019 333-203560
8-K Open 8-K document View SEC filing for 8-K 8-K 25 Sep 2019 24 Sep 2019 333-203560
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 09 Aug 2019 30 Jun 2019 333-203560
8-K Open 8-K document View SEC filing for 8-K 8-K 09 Jul 2019 08 Jul 2019 333-203560
8-K Open 8-K document View SEC filing for 8-K 8-K 19 Jun 2019 17 Jun 2019 333-203560
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 10 May 2019 31 Mar 2019 333-203560
8-K Open 8-K document View SEC filing for 8-K 8-K 22 Apr 2019 17 Apr 2019 333-203560
8-K Open 8-K document View SEC filing for 8-K 8-K 08 Apr 2019 03 Apr 2019 333-203560
8-K Open 8-K document View SEC filing for 8-K 8-K 26 Mar 2019 22 Mar 2019 333-203560
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K 10-K 08 Mar 2019 31 Dec 2018 333-203560
8-K Open 8-K document View SEC filing for 8-K 8-K 13 Feb 2019 12 Feb 2019 333-203560
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 09 Nov 2018 30 Sep 2018 333-203560
8-K Open 8-K document View SEC filing for 8-K 8-K 26 Sep 2018 20 Sep 2018 333-203560
8-K Open 8-K document View SEC filing for 8-K 8-K 27 Aug 2018 23 Aug 2018 333-203560
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 10 Aug 2018 30 Jun 2018 333-203560
8-K Open 8-K document View SEC filing for 8-K 8-K 06 Jul 2018 06 Jul 2018 333-203560
8-K Open 8-K document View SEC filing for 8-K 8-K 29 Jun 2018 27 Jun 2018 333-203560
8-K/A Open 8-K/A document View SEC filing for 8-K/A 8-K/A 08 Jun 2018 30 May 2018 333-203560
8-K Open 8-K document View SEC filing for 8-K 8-K 05 Jun 2018 30 May 2018 333-203560
8-K Open 8-K document View SEC filing for 8-K 8-K 21 May 2018 18 May 2018 333-203560
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 04 May 2018 31 Mar 2018 333-203560
8-K Open 8-K document View SEC filing for 8-K 8-K 25 Apr 2018 25 Apr 2018 333-203560
8-K Open 8-K document View SEC filing for 8-K 8-K 02 Apr 2018 28 Mar 2018 333-203560
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K 10-K 09 Mar 2018 31 Dec 2017 333-203560
8-K Open 8-K document View SEC filing for 8-K 8-K 06 Feb 2018 02 Feb 2018 333-203560
8-K Open 8-K document View SEC filing for 8-K 8-K 05 Jan 2018 03 Jan 2018 333-203560
8-K Open 8-K document View SEC filing for 8-K 8-K 21 Dec 2017 20 Dec 2017 333-203560
8-K Open 8-K document View SEC filing for 8-K 8-K 01 Dec 2017 29 Nov 2017 333-203560
8-K Open 8-K document View SEC filing for 8-K 8-K 29 Nov 2017 29 Nov 2017 333-203560
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 08 Nov 2017 30 Sep 2017 333-203560
8-K Open 8-K document View SEC filing for 8-K 8-K 04 Oct 2017 02 Oct 2017 333-203560
8-K Open 8-K document View SEC filing for 8-K 8-K 28 Sep 2017 27 Sep 2017 333-203560
8-K Open 8-K document View SEC filing for 8-K 8-K 21 Sep 2017 19 Sep 2017 333-203560
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 14 Aug 2017 30 Jun 2017 333-203560
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 17 Jul 2017 17 Jul 2017 333-203560
8-K Open 8-K document View SEC filing for 8-K 8-K 21 Jun 2017 19 Jun 2017 333-203560
8-K/A Open 8-K/A document View SEC filing for 8-K/A 8-K/A 08 Jun 2017 31 May 2017 333-203560
8-K Open 8-K document View SEC filing for 8-K 8-K 01 Jun 2017 31 May 2017 333-203560
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 05 May 2017 31 Mar 2017 333-203560
8-K Open 8-K document View SEC filing for 8-K 8-K 20 Mar 2017 16 Mar 2017 333-203560
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K 10-K 10 Mar 2017 31 Dec 2016 333-203560
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 04 Nov 2016 30 Sep 2016 333-203560
8-K Open 8-K document View SEC filing for 8-K 8-K 01 Sep 2016 01 Sep 2016 333-203560
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 09 Aug 2016 30 Jun 2016 333-203560
8-K Open 8-K document View SEC filing for 8-K 8-K 01 Jul 2016 30 Jun 2016 333-203560
EFFECT Open EFFECT document View SEC filing for EFFECT 27 Jun 2016 333-212006
424B4 Open 424B4 document View SEC filing for 424B4 424B4 27 Jun 2016 333-212006
8-K Open 8-K document View SEC filing for 8-K 8-K 27 Jun 2016 21 Jun 2016 333-203560
CORRESP Open CORRESP document View SEC filing for CORRESP 23 Jun 2016
CORRESP Open CORRESP document View SEC filing for CORRESP 22 Jun 2016
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 20 Jun 2016
S-4 Open S-4 document | Open XBRL data View SEC filing for S-4 S-4 14 Jun 2016 333-212006
8-K Open 8-K document View SEC filing for 8-K 8-K 23 May 2016 23 May 2016 333-203560
8-K Open 8-K document View SEC filing for 8-K 8-K 13 May 2016 12 May 2016 333-203560
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 12 May 2016 31 Mar 2016 333-203560
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 29 Apr 2016 29 Apr 2016 333-203560
8-K Open 8-K document View SEC filing for 8-K 8-K 22 Apr 2016 22 Apr 2016 333-203560
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K 10-K 14 Mar 2016 31 Dec 2015 333-203560
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 12 Nov 2015 30 Sep 2015 333-203560
8-K Open 8-K document View SEC filing for 8-K 8-K 22 Sep 2015 22 Sep 2015 333-203560
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 21 Aug 2015 30 Jun 2015 333-203560
8-K Open 8-K document View SEC filing for 8-K 8-K 03 Aug 2015 03 Aug 2015 333-203560
424B1 Open 424B1 document View SEC filing for 424B1 424B1 30 Jul 2015 333-203560
EFFECT Open EFFECT document View SEC filing for EFFECT 29 Jul 2015 333-203560
CORRESP Open CORRESP document View SEC filing for CORRESP 27 Jul 2015
CORRESP Open CORRESP document View SEC filing for CORRESP 17 Jul 2015
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 10 Jul 2015
CORRESP Open CORRESP document View SEC filing for CORRESP 18 Jun 2015
S-4/A Open S-4/A document View SEC filing for S-4/A S-4/A 18 Jun 2015 333-203560
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 26 May 2015
S-4 Open S-4 document View SEC filing for S-4 S-4 22 Apr 2015 333-203560

About this filer

Tri-State Generation & Transmission Association, Inc. files with the SEC under CIK 0001637880. This page aggregates EDGAR filings and related ownership activity.

Industry: Electric Services.

FAQ

What is a CIK?
A Central Index Key (CIK) is a unique identifier assigned by the SEC to each filer.
Why are some filings missing?
New filings appear as the SEC updates EDGAR, and older records can vary by availability.
How often is this page updated?
Updates follow new EDGAR submissions and periodic data refreshes.

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