HAWAIIAN ELECTRIC CO INC

Business address
1099 Alakea Street, Suite 2200, Honolulu, HI, 96813
State of incorporation
HI
Fiscal year end
31 December
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HAWAIIAN ELECTRIC CO INC has filed 623 SEC EDGAR filings since 28 Jan 1994

Latest Filings

Form type Document Filing Description Filing date Reporting date File number(s)
10-Q Open Document | Data Open Filing 10-Q 07 Nov 2025 30 Sep 2025 001-04955
8-K Open Document | Data Open Filing 8-K 07 Nov 2025 07 Nov 2025 001-04955
15-12G Open Document Open Filing 15-12G 17 Oct 2025 001-04955
SCHEDULE 13D/A Open Document Open Filing 16 Oct 2025 005-34106
8-A12G Open Document Open Filing 8-A12G 18 Sep 2025 000-56782
8-K Open Document | Data Open Filing 8-K 18 Sep 2025 18 Sep 2025 001-04955
8-K Open Document | Data Open Filing 8-K 11 Sep 2025 11 Sep 2025 001-04955
8-K Open Document | Data Open Filing 8-K 08 Sep 2025 08 Sep 2025 001-04955
8-K Open Document | Data Open Filing 8-K 08 Sep 2025 05 Sep 2025 001-04955
3 Open Document Open Filing INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES 13 Aug 2025 05 Aug 2025
10-Q Open Document | Data Open Filing 10-Q 07 Aug 2025 30 Jun 2025 001-04955
8-K Open Document | Data Open Filing 8-K 07 Aug 2025 07 Aug 2025 001-04955
8-K Open Document | Data Open Filing 8-K 14 May 2025 12 May 2025 001-04955
10-Q Open Document | Data Open Filing 10-Q 09 May 2025 31 Mar 2025 001-04955
8-K Open Document | Data Open Filing 8-K 09 May 2025 09 May 2025 001-04955
8-K Open Document | Data Open Filing 8-K 26 Mar 2025 26 Mar 2025 001-04955
10-K Open Document | Data Open Filing 10-K 24 Feb 2025 31 Dec 2024 001-04955
8-K Open Document | Data Open Filing 8-K 21 Feb 2025 21 Feb 2025 001-04955
8-K Open Document | Data Open Filing 8-K 11 Feb 2025 11 Feb 2025 001-04955
10-Q Open Document | Data Open Filing 10-Q 08 Nov 2024 30 Sep 2024 001-04955
8-K Open Document | Data Open Filing 8-K 08 Nov 2024 08 Nov 2024 001-04955
8-K Open Document | Data Open Filing 8-K 05 Nov 2024 01 Nov 2024 001-04955
8-K Open Document | Data Open Filing FORM 8-K 24 Sep 2024 23 Sep 2024 001-04955
8-K Open Document | Data Open Filing FORM 8-K 23 Sep 2024 23 Sep 2024 001-04955
8-K Open Document | Data Open Filing FORM 8-K 19 Sep 2024 19 Sep 2024 001-04955
8-K Open Document | Data Open Filing FORM 8-K 19 Sep 2024 19 Sep 2024 001-04955
8-K Open Document | Data Open Filing 8-K 19 Aug 2024 14 Aug 2024 001-04955
10-Q Open Document | Data Open Filing 10-Q 09 Aug 2024 30 Jun 2024 001-04955
8-K Open Document | Data Open Filing 8-K 09 Aug 2024 09 Aug 2024 001-04955
8-K Open Document | Data Open Filing 8-K 05 Aug 2024 02 Aug 2024 001-04955
8-K Open Document | Data Open Filing 8-K 28 Jun 2024 28 Jun 2024 001-04955
8-K Open Document | Data Open Filing 8-K 23 May 2024 17 May 2024 001-04955
8-K Open Document | Data Open Filing 8-K 15 May 2024 13 May 2024 001-04955
8-K Open Document | Data Open Filing 8-K 10 May 2024 10 May 2024 001-04955
10-Q Open Document | Data Open Filing 10-Q 10 May 2024 31 Mar 2024 001-04955
8-K Open Document | Data Open Filing 8-K 27 Mar 2024 27 Mar 2024 001-04955
10-K Open Document | Data Open Filing 10-K 29 Feb 2024 31 Dec 2023 001-04955
8-K Open Document | Data Open Filing 8-K 13 Feb 2024 13 Feb 2024 001-04955
SC 13D Open Document Open Filing SCHEDULE 13D 26 Jan 2024 005-34106
8-K Open Document | Data Open Filing 8-K 11 Dec 2023 11 Dec 2023 001-04955
10-Q Open Document | Data Open Filing 10-Q 13 Nov 2023 30 Sep 2023 001-04955
8-K Open Document | Data Open Filing 8-K 09 Nov 2023 09 Nov 2023 001-04955
3 Open Document Open Filing PRIMARY DOCUMENT 02 Oct 2023 01 Oct 2023
8-K Open Document | Data Open Filing 8-K 18 Sep 2023 15 Sep 2023 001-04955
8-K Open Document | Data Open Filing 8-K 28 Aug 2023 27 Aug 2023 001-04955
8-K Open Document | Data Open Filing 8-K 24 Aug 2023 21 Aug 2023 001-04955
8-K Open Document | Data Open Filing 8-K 18 Aug 2023 18 Aug 2023 001-04955
10-Q Open Document | Data Open Filing 10-Q 07 Aug 2023 30 Jun 2023 001-04955
8-K Open Document | Data Open Filing 8-K 07 Aug 2023 07 Aug 2023 001-04955
144 Open Document Open Filing 15 May 2023 001-04955
8-K Open Document | Data Open Filing 8-K 10 May 2023 05 May 2023 001-04955
10-Q Open Document | Data Open Filing 10-Q 09 May 2023 31 Mar 2023 001-04955
8-K Open Document | Data Open Filing 8-K 09 May 2023 09 May 2023 001-04955
8-K Open Document | Data Open Filing 8-K 20 Mar 2023 20 Mar 2023 001-04955
10-K Open Document | Data Open Filing 10-K 27 Feb 2023 31 Dec 2022 001-04955
8-K Open Document | Data Open Filing 8-K 14 Feb 2023 14 Feb 2023 001-04955
3 Open Document Open Filing PRIMARY DOCUMENT 03 Jan 2023 01 Jan 2023
10-Q Open Document | Data Open Filing 10-Q 07 Nov 2022 30 Sep 2022 001-04955
8-K Open Document | Data Open Filing 8-K 07 Nov 2022 07 Nov 2022 001-04955
10-Q Open Document | Data Open Filing 10-Q 08 Aug 2022 30 Jun 2022 001-04955
8-K Open Document | Data Open Filing 8-K 08 Aug 2022 08 Aug 2022 001-04955
8-K Open Document | Data Open Filing 8-K 24 Jun 2022 17 Jun 2022 001-04955
8-K Open Document | Data Open Filing 8-K 10 May 2022 06 May 2022 001-04955
10-Q Open Document | Data Open Filing 10-Q 09 May 2022 31 Mar 2022 001-04955
8-K Open Document | Data Open Filing 8-K 09 May 2022 09 May 2022 001-04955
8-K Open Document | Data Open Filing 8-K 14 Apr 2022 14 Apr 2022 001-04955
3 Open Document Open Filing PRIMARY DOCUMENT 11 Mar 2022 01 Jan 2022
10-K Open Document | Data Open Filing 10-K 25 Feb 2022 31 Dec 2021 001-04955
8-K Open Document | Data Open Filing 8-K 14 Feb 2022 14 Feb 2022 001-04955
3 Open Document Open Filing PRIMARY DOCUMENT 09 Feb 2022 16 Aug 2021
8-K Open Document | Data Open Filing 8-K 07 Feb 2022 01 Feb 2022 001-04955
8-K Open Document | Data Open Filing 8-K 03 Jan 2022 28 Dec 2021 001-04955
3 Open Document Open Filing PRIMARY DOCUMENT 02 Dec 2021 20 Aug 2021
10-Q Open Document | Data Open Filing 10-Q 05 Nov 2021 30 Sep 2021 001-04955
8-K Open Document | Data Open Filing 8-K 05 Nov 2021 05 Nov 2021 001-04955
8-K Open Document | Data Open Filing 8-K 04 Nov 2021 29 Oct 2021 001-04955
8-K Open Document | Data Open Filing 8-K 05 Oct 2021 01 Oct 2021 001-04955
10-Q Open Document | Data Open Filing 10-Q 09 Aug 2021 30 Jun 2021 001-04955
8-K Open Document | Data Open Filing 8-K 09 Aug 2021 09 Aug 2021 001-04955
8-K Open Document | Data Open Filing 8-K 18 May 2021 14 May 2021 001-04955
3 Open Document Open Filing PRIMARY DOCUMENT 17 May 2021 07 May 2021
8-K Open Document | Data Open Filing 8-K 11 May 2021 07 May 2021 001-04955
10-Q Open Document | Data Open Filing 10-Q 10 May 2021 31 Mar 2021 001-04955
8-K Open Document | Data Open Filing 8-K 07 May 2021 07 May 2021 001-04955
8-K Open Document | Data Open Filing 8-K 27 Apr 2021 27 Apr 2021 001-04955
10-K Open Document | Data Open Filing 10-K 26 Feb 2021 31 Dec 2020 001-04955
8-K Open Document | Data Open Filing 8-K 16 Feb 2021 16 Feb 2021 001-04955
8-K Open Document | Data Open Filing 8-K 19 Jan 2021 15 Jan 2021 001-04955
8-K Open Document | Data Open Filing 8-K 07 Jan 2021 04 Jan 2021 001-04955
8-K Open Document | Data Open Filing 8-K 30 Dec 2020 24 Dec 2020 001-04955
3 Open Document Open Filing PRIMARY DOCUMENT 17 Dec 2020 05 May 2020
10-Q Open Document | Data Open Filing 10-Q 06 Nov 2020 30 Sep 2020 001-04955
8-K Open Document | Data Open Filing 8-K 06 Nov 2020 06 Nov 2020 001-04955
8-K Open Document | Data Open Filing 8-K 26 Oct 2020 22 Oct 2020 001-04955
10-Q Open Document | Data Open Filing 10-Q 06 Aug 2020 30 Jun 2020 001-04955
8-K Open Document | Data Open Filing 8-K 06 Aug 2020 06 Aug 2020 001-04955
8-K Open Document | Data Open Filing 8-K 11 Jun 2020 09 Jun 2020 001-04955
3 Open Document Open Filing PRIMARY DOCUMENT 10 Jun 2020 02 Jun 2020
8-K/A Open Document | Data Open Filing 8-K/A 12 May 2020 05 May 2020 001-04955
8-K Open Document | Data Open Filing 8-K 11 May 2020 05 May 2020 001-04955
10-Q Open Document | Data Open Filing 10-Q 05 May 2020 31 Mar 2020 001-04955
8-K Open Document | Data Open Filing 8-K 05 May 2020 05 May 2020 001-04955
8-K Open Document | Data Open Filing 8-K 06 Apr 2020 03 Apr 2020 001-04955
10-K Open Document | Data Open Filing 10-K 28 Feb 2020 31 Dec 2019 001-04955
8-K Open Document | Data Open Filing 8-K 13 Feb 2020 13 Feb 2020 001-04955
SC 13G/A Open Document Open Filing TERMINATION FILING 12-31-19 12 Feb 2020 005-34106
8-K Open Document | Data Open Filing 8-K 07 Jan 2020 31 Dec 2019 001-04955
8-K Open Document | Data Open Filing 8-K 03 Jan 2020 30 Dec 2019 001-04955
8-K Open Document | Data Open Filing 8-K 10 Dec 2019 09 Dec 2019 001-04955
8-K Open Document | Data Open Filing 8-K 15 Nov 2019 13 Nov 2019 001-04955
10-Q Open Document | Data Open Filing 10-Q 01 Nov 2019 30 Sep 2019 001-04955
8-K Open Document | Data Open Filing 8-K 01 Nov 2019 01 Nov 2019 001-04955
8-K Open Document Open Filing 8-K 03 Oct 2019 27 Sep 2019 001-04955
10-Q Open Document | Data Open Filing 10-Q 02 Aug 2019 30 Jun 2019 001-04955
8-K Open Document Open Filing 8-K 02 Aug 2019 02 Aug 2019 001-04955
15-12B Open Document Open Filing 15-12B 28 May 2019 001-04955
8-K Open Document Open Filing 8-K 10 May 2019 07 May 2019 001-04955
10-Q Open Document | Data Open Filing 10-Q 07 May 2019 31 Mar 2019 001-04955
8-K Open Document Open Filing 8-K 07 May 2019 07 May 2019 001-04955
8-K Open Document Open Filing 8-K 19 Mar 2019 19 Mar 2019 001-04955
10-K Open Document | Data Open Filing 10-K 28 Feb 2019 31 Dec 2018 001-04955
8-K Open Document Open Filing 8-K 15 Feb 2019 15 Feb 2019 001-04955
8-K Open Document Open Filing 8-K 25 Jan 2019 21 Jan 2019 001-04955
8-K Open Document Open Filing 02 Jan 2019 02 Jan 2019 001-04955
10-Q Open Document | Data Open Filing 10-Q 07 Nov 2018 30 Sep 2018 001-04955
8-K/A Open Document Open Filing 8-K/A 07 Nov 2018 07 Nov 2018 001-04955
8-K Open Document Open Filing 8-K 07 Nov 2018 07 Nov 2018 001-04955
10-Q Open Document | Data Open Filing 10-Q 03 Aug 2018 30 Jun 2018 001-04955
8-K Open Document Open Filing 8-K 03 Aug 2018 03 Aug 2018 001-04955
8-K Open Document Open Filing 8-K 15 May 2018 10 May 2018 001-04955
10-Q Open Document | Data Open Filing 10-Q 10 May 2018 31 Mar 2018 001-04955
8-K Open Document Open Filing 8-K 10 May 2018 10 May 2018 001-04955
8-K Open Document Open Filing 8-K 21 Mar 2018 20 Mar 2018 001-04955
10-K Open Document | Data Open Filing 10-K 01 Mar 2018 31 Dec 2017 001-04955
8-K Open Document Open Filing 8-K 14 Feb 2018 14 Feb 2018 001-04955
3 Open Document Open Filing PRIMARY DOCUMENT 24 Jan 2018 01 Jan 2018
8-K Open Document Open Filing 8-K 23 Jan 2018 18 Jan 2018 001-04955
8-K Open Document Open Filing 8-K 27 Dec 2017 15 Dec 2017 001-04955
10-Q Open Document | Data Open Filing 10-Q 02 Nov 2017 30 Sep 2017 001-04955
8-K Open Document Open Filing 8-K 02 Nov 2017 02 Nov 2017 001-04955
8-K Open Document Open Filing 8-K 23 Aug 2017 21 Aug 2017 001-04955
10-Q Open Document | Data Open Filing 10-Q 03 Aug 2017 30 Jun 2017 001-04955
8-K Open Document | Data Open Filing 8-K 03 Aug 2017 03 Aug 2017 001-04955
8-K Open Document | Data Open Filing 8-K 18 Jul 2017 14 Jul 2017 001-04955
8-K Open Document Open Filing 8-K 03 Jul 2017 29 Jun 2017 001-04955
8-K Open Document Open Filing 8-K 09 May 2017 05 May 2017 001-04955
CT ORDER Open Document Open Filing 09 May 2017 001-04955
10-Q Open Document | Data Open Filing 10-Q 05 May 2017 31 Mar 2017 001-04955
8-K Open Document Open Filing 8-K 05 May 2017 05 May 2017 001-04955
8-K Open Document Open Filing 8-K 03 Mar 2017 27 Feb 2017 001-04955
8-K Open Document Open Filing 8-K 27 Feb 2017 24 Feb 2017 001-04955
10-K Open Document | Data Open Filing 10-K 24 Feb 2017 31 Dec 2016 001-04955
8-K Open Document Open Filing 8-K 14 Feb 2017 14 Feb 2017 001-04955
3 Open Document Open Filing PRIMARY DOCUMENT 01 Feb 2017 09 Jan 2017
3 Open Document Open Filing PRIMARY DOCUMENT 27 Jan 2017 09 Jan 2017
3 Open Document Open Filing PRIMARY DOCUMENT 23 Jan 2017 09 Jan 2017
3 Open Document Open Filing PRIMARY DOCUMENT 23 Jan 2017 09 Jan 2017
3 Open Document Open Filing PRIMARY DOCUMENT 19 Jan 2017 09 Jan 2017
8-K Open Document Open Filing 8-K 27 Dec 2016 23 Dec 2016 001-04955
8-K Open Document Open Filing 8-K 19 Dec 2016 15 Dec 2016 001-04955
8-K Open Document Open Filing 8-K 06 Dec 2016 28 Nov 2016 001-04955
10-Q Open Document | Data Open Filing 10-Q 04 Nov 2016 30 Sep 2016 001-04955
8-K Open Document Open Filing 8-K 04 Nov 2016 04 Nov 2016 001-04955
CT ORDER Open Document Open Filing 11 Oct 2016 001-04955
10-Q/A Open Document Open Filing 10-Q/A 26 Sep 2016 31 Mar 2016 001-04955
10-Q Open Document | Data Open Filing 10-Q 04 Aug 2016 30 Jun 2016 001-04955
8-K Open Document Open Filing 8-K 04 Aug 2016 04 Aug 2016 001-04955
8-K Open Document Open Filing 8-K 19 Jul 2016 19 Jul 2016 001-04955
8-K Open Document Open Filing 8-K 18 Jul 2016 16 Jul 2016 001-04955
8-K Open Document Open Filing 8-K 18 Jul 2016 15 Jul 2016 001-04955
CT ORDER Open Document Open Filing 10 Jun 2016 001-04955
8-K Open Document | Data Open Filing 8-K 19 May 2016 18 May 2016 001-04955
8-K Open Document Open Filing 8-K 10 May 2016 10 May 2016 001-04955
10-Q Open Document | Data Open Filing 10-Q 04 May 2016 31 Mar 2016 001-04955
8-K Open Document | Data Open Filing 8-K 04 May 2016 04 May 2016 001-04955
8-K Open Document | Data Open Filing 8-K 04 Apr 2016 01 Apr 2016 001-04955
8-K Open Document Open Filing 8-K 03 Mar 2016 03 Mar 2016 001-04955
10-K Open Document | Data Open Filing 10-K 23 Feb 2016 31 Dec 2015 001-04955
8-K Open Document Open Filing 8-K 11 Feb 2016 11 Feb 2016 001-04955
8-K Open Document Open Filing 8-K 23 Dec 2015 22 Dec 2015 001-04955
8-K Open Document Open Filing 8-K 15 Dec 2015 15 Dec 2015 001-04955
10-Q Open Document | Data Open Filing 10-Q 16 Nov 2015 30 Sep 2015 001-04955
10-Q/A Open Document | Data Open Filing 10-Q/A 16 Nov 2015 30 Jun 2015 001-04955
10-Q/A Open Document | Data Open Filing 10-Q/A 16 Nov 2015 31 Mar 2015 001-04955
10-K/A Open Document | Data Open Filing 10-K/A 16 Nov 2015 31 Dec 2014 001-04955
NT 10-Q Open Document Open Filing NT 10-Q 09 Nov 2015 30 Sep 2015 001-04955
8-K Open Document Open Filing 8-K 09 Nov 2015 04 Nov 2015 001-04955
8-K Open Document Open Filing 8-K 05 Nov 2015 04 Nov 2015 001-04955
8-K Open Document Open Filing 8-K 16 Oct 2015 16 Oct 2015 001-04955
8-K Open Document Open Filing 8-K 14 Oct 2015 12 Oct 2015 001-04955
8-K Open Document Open Filing 8-K 25 Aug 2015 20 Aug 2015 001-04955
8-K Open Document Open Filing 8-K 10 Aug 2015 10 Aug 2015 001-04955
10-Q Open Document | Data Open Filing 10-Q 10 Aug 2015 30 Jun 2015 001-04955
CT ORDER Open Document Open Filing 08 Jul 2015 001-04955
8-K Open Document Open Filing 8-K 03 Jun 2015 28 May 2015 001-04955
10-Q Open Document | Data Open Filing 10-Q 06 May 2015 31 Mar 2015 001-04955
8-K Open Document Open Filing 8-K 06 May 2015 06 May 2015 001-04955
8-K Open Document Open Filing 8-K 16 Apr 2015 15 Apr 2015 001-04955
8-K Open Document Open Filing 8-K 02 Mar 2015 02 Mar 2015 001-04955
10-K Open Document | Data Open Filing 10-K 26 Feb 2015 31 Dec 2014 001-04955
8-K Open Document Open Filing HEI HE 8-K 12 Feb 2015 12 Feb 2015 001-04955
CT ORDER Open Document Open Filing 30 Jan 2015 001-04955
8-K Open Document Open Filing 8-K 30 Jan 2015 29 Jan 2015 001-04955
8-K Open Document Open Filing 8-K 31 Dec 2014 30 Dec 2014 001-04955
8-K Open Document Open Filing 8-K 23 Dec 2014 23 Dec 2014 001-04955
CT ORDER Open Document Open Filing 23 Dec 2014 001-04955
8-K Open Document Open Filing 8-K 04 Dec 2014 03 Dec 2014 001-04955
DEFA14A Open Document Open Filing 8-K 04 Dec 2014 001-04955
8-K Open Document Open Filing 8-K 03 Dec 2014 03 Dec 2014 001-04955
DEFA14A Open Document Open Filing 8-K 03 Dec 2014 001-04955
10-Q Open Document | Data Open Filing 10-Q 06 Nov 2014 30 Sep 2014 001-04955
8-K Open Document Open Filing 8-K 06 Nov 2014 06 Nov 2014 001-04955
8-K Open Document Open Filing 8-K 10 Oct 2014 08 Oct 2014 001-04955
8-K Open Document Open Filing 8-K 11 Sep 2014 05 Sep 2014 001-04955
8-K Open Document Open Filing 8-K 04 Sep 2014 27 Aug 2014 001-04955
8-K Open Document Open Filing 8-K 27 Aug 2014 26 Aug 2014 001-04955
CT ORDER Open Document Open Filing 25 Aug 2014 001-04955
10-Q Open Document | Data Open Filing 10-Q 11 Aug 2014 30 Jun 2014 001-04955
8-K Open Document Open Filing 8-K 11 Aug 2014 11 Aug 2014 001-04955
8-K Open Document Open Filing 8-K 30 Jun 2014 27 Jun 2014 001-04955
3 Open Document Open Filing PRIMARY DOCUMENT 30 May 2014 30 Dec 2013
3 Open Document Open Filing PRIMARY DOCUMENT 29 May 2014 19 May 2014
8-K Open Document Open Filing 8-K 28 May 2014 26 May 2014 001-04955
8-K Open Document Open Filing 8-K 13 May 2014 07 May 2014 001-04955
8-K Open Document Open Filing 8-K 07 May 2014 07 May 2014 001-04955
10-Q Open Document | Data Open Filing 10-Q 07 May 2014 31 Mar 2014 001-04955
3 Open Document Open Filing PRIMARY DOCUMENT 30 Apr 2014 24 Feb 2014
8-K Open Document Open Filing 8-K 16 Apr 2014 15 Apr 2014 001-04955
8-K Open Document Open Filing 8-K 03 Apr 2014 02 Apr 2014 001-04955
ARS Open Document Open Filing AUTO-GENERATED PAPER DOCUMENT 31 Mar 2014 31 Dec 2013 001-04955
8-K Open Document Open Filing 8-K 03 Mar 2014 28 Feb 2014 001-04955
10-K Open Document | Data Open Filing 10-K 21 Feb 2014 31 Dec 2013 001-04955
8-K Open Document Open Filing 8-K 18 Feb 2014 18 Feb 2014 001-04955
SC 13G/A Open Document Open Filing 29 Jan 2014 005-34106
8-K Open Document Open Filing 8-K 23 Jan 2014 23 Jan 2014 001-04955