Ralph Bartel

Business address
Casella Postale 823, 6612 Ascona, Switzerland, 6612
Top holdings (ownership)
TZOO
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Ralph Bartel has filed 290 SEC EDGAR filings since 03 Mar 2003

Latest Filings

Form type Document Filing Description Filing date Reporting date File number(s)
4 Open Document Open Filing FORM 4 15 Dec 2025 11 Dec 2025 000-50171
4 Open Document Open Filing FORM 4 08 Dec 2025 01 Dec 2025 000-50171
4 Open Document Open Filing FORM 4 01 Dec 2025 26 Nov 2025 000-50171
4 Open Document Open Filing FORM 4 13 Nov 2025 12 Nov 2025 000-50171
4 Open Document Open Filing FORM 4 29 Sep 2025 26 Sep 2025 000-50171
4 Open Document Open Filing FORM 4 25 Sep 2025 23 Sep 2025 000-50171
4 Open Document Open Filing FORM 4 17 Sep 2025 15 Sep 2025 000-50171
4 Open Document Open Filing FORM 4 15 Sep 2025 11 Sep 2025 000-50171
4 Open Document Open Filing FORM 4 10 Sep 2025 08 Sep 2025 000-50171
4 Open Document Open Filing FORM 4 03 Sep 2025 29 Aug 2025 000-50171
4 Open Document Open Filing FORM 4 29 Aug 2025 27 Aug 2025 000-50171
4 Open Document Open Filing FORM 4 25 Aug 2025 21 Aug 2025 000-50171
4 Open Document Open Filing FORM 4 14 Aug 2025 12 Aug 2025 000-50171
4 Open Document Open Filing FORM 4 05 Aug 2025 01 Aug 2025 000-50171
4 Open Document Open Filing FORM 4 30 Jul 2025 28 Jul 2025 000-50171
4 Open Document Open Filing FORM 4 30 Jun 2025 27 Jun 2025 000-50171
4 Open Document Open Filing FORM 4 27 Jun 2025 25 Jun 2025 000-50171
4 Open Document Open Filing FORM 4 23 Jun 2025 18 Jun 2025 000-50171
4 Open Document Open Filing FORM 4 18 Jun 2025 16 Jun 2025 000-50171
4 Open Document Open Filing FORM 4 13 Jun 2025 11 Jun 2025 000-50171
4 Open Document Open Filing FORM 4 04 Jun 2025 02 Jun 2025 000-50171
4 Open Document Open Filing FORM 4 02 Jun 2025 29 May 2025 000-50171
4 Open Document Open Filing FORM 4 30 May 2025 28 May 2025 000-50171
4 Open Document Open Filing FORM 4 15 May 2025 13 May 2025 000-50171
4 Open Document Open Filing FORM 4 06 May 2025 02 May 2025 000-50171
4 Open Document Open Filing FORM 4 05 May 2025 01 May 2025 000-50171
4 Open Document Open Filing FORM 4 31 Mar 2025 31 Mar 2025 000-50171
4 Open Document Open Filing FORM 4 26 Mar 2025 24 Mar 2025 000-50171
4 Open Document Open Filing FORM 4 18 Mar 2025 14 Mar 2025 000-50171
4 Open Document Open Filing FORM 4 11 Mar 2025 07 Mar 2025 000-50171
4 Open Document Open Filing FORM 4 03 Mar 2025 27 Feb 2025 000-50171
4 Open Document Open Filing FORM 4 26 Dec 2024 23 Dec 2024 000-50171
4 Open Document Open Filing FORM 4 02 Dec 2024 29 Nov 2024 000-50171
4 Open Document Open Filing FORM 4 12 Nov 2024 07 Nov 2024 000-50171
4 Open Document Open Filing FORM 4 05 Nov 2024 01 Nov 2024 000-50171
4 Open Document Open Filing FORM 4 30 Oct 2024 28 Oct 2024 000-50171
4 Open Document Open Filing FORM 4 25 Oct 2024 23 Oct 2024 000-50171
4 Open Document Open Filing FORM 4 27 Sep 2024 25 Sep 2024 000-50171
4 Open Document Open Filing FORM 4 26 Sep 2024 24 Sep 2024 000-50171
4 Open Document Open Filing FORM 4 20 Sep 2024 18 Sep 2024 000-50171
4 Open Document Open Filing FORM 4 17 Sep 2024 13 Sep 2024 000-50171
4 Open Document Open Filing FORM 4 03 Sep 2024 29 Aug 2024 000-50171
4 Open Document Open Filing FORM 4 12 Aug 2024 08 Aug 2024 000-50171
4 Open Document Open Filing FORM 4 08 Aug 2024 06 Aug 2024 000-50171
4 Open Document Open Filing FORM 4 01 Aug 2024 30 Jul 2024 000-50171
4 Open Document Open Filing FORM 4 17 Jun 2024 13 Jun 2024 000-50171
4 Open Document Open Filing FORM 4 03 Jun 2024 30 May 2024 000-50171
4 Open Document Open Filing FORM 4 22 May 2024 20 May 2024 000-50171
4 Open Document Open Filing FORM 4 17 May 2024 15 May 2024 000-50171
4 Open Document Open Filing FORM 4 22 Mar 2024 20 Mar 2024 000-50171
4 Open Document Open Filing FORM 4 19 Mar 2024 15 Mar 2024 000-50171
4 Open Document Open Filing FORM 4 13 Mar 2024 11 Mar 2024 000-50171
4 Open Document Open Filing FORM 4 06 Mar 2024 04 Mar 2024 000-50171
4 Open Document Open Filing FORM 4 04 Dec 2023 30 Nov 2023 000-50171
4 Open Document Open Filing FORM 4 29 Nov 2023 27 Nov 2023 000-50171
4 Open Document Open Filing FORM 4 20 Nov 2023 16 Nov 2023 000-50171
4 Open Document Open Filing FORM 4 15 Nov 2023 13 Nov 2023 000-50171
4 Open Document Open Filing FORM 4 13 Nov 2023 08 Nov 2023 000-50171
4 Open Document Open Filing FORM 4 07 Nov 2023 03 Nov 2023 000-50171
4 Open Document Open Filing FORM 4 02 Nov 2023 31 Oct 2023 000-50171
4 Open Document Open Filing FORM 4 30 Oct 2023 26 Oct 2023 000-50171
4 Open Document Open Filing FORM 4 20 Oct 2023 18 Oct 2023 000-50171
4 Open Document Open Filing FORM 4 13 Oct 2023 11 Oct 2023 000-50171
4 Open Document Open Filing FORM 4 10 Oct 2023 06 Oct 2023 000-50171
4 Open Document Open Filing FORM 4 05 Oct 2023 03 Oct 2023 000-50171
4 Open Document Open Filing FORM 4 02 Oct 2023 28 Sep 2023 000-50171
4 Open Document Open Filing FORM 4 25 Sep 2023 21 Sep 2023 000-50171
4 Open Document Open Filing FORM 4 20 Sep 2023 18 Sep 2023 000-50171
4 Open Document Open Filing FORM 4 29 Aug 2023 25 Aug 2023 000-50171
4 Open Document Open Filing FORM 4 24 Aug 2023 22 Aug 2023 000-50171
4 Open Document Open Filing FORM 4 15 Aug 2023 11 Aug 2023 000-50171
4/A Open Document Open Filing FORM 4/A 10 Aug 2023 03 Aug 2023 000-50171
4 Open Document Open Filing FORM 4 10 Aug 2023 08 Aug 2023 000-50171
4 Open Document Open Filing FORM 4 07 Aug 2023 02 Aug 2023 000-50171
4 Open Document Open Filing FORM 4 02 Aug 2023 31 Jul 2023 000-50171
4 Open Document Open Filing FORM 4 30 Jun 2023 28 Jun 2023 000-50171
4 Open Document Open Filing FORM 4 28 Jun 2023 26 Jun 2023 000-50171
4 Open Document Open Filing FORM 4 22 Jun 2023 20 Jun 2023 000-50171
4 Open Document Open Filing FORM 4 14 Jun 2023 12 Jun 2023 000-50171
4/A Open Document Open Filing FORM 4/A 12 Jun 2023 09 Jun 2023 000-50171
4 Open Document Open Filing FORM 4 09 Jun 2023 07 Jun 2023 000-50171
4 Open Document Open Filing FORM 4 26 May 2023 24 May 2023 000-50171
4 Open Document Open Filing FORM 4 23 May 2023 19 May 2023 000-50171
144 Open Document Open Filing 23 May 2023
144 Open Document Open Filing 23 May 2023
4 Open Document Open Filing FORM 4 11 May 2023 09 May 2023 000-50171
4 Open Document Open Filing FORM 4 10 May 2023 08 May 2023 000-50171
4 Open Document Open Filing FORM 4 08 May 2023 04 May 2023 000-50171
4 Open Document Open Filing FORM 4 04 May 2023 02 May 2023 000-50171
4 Open Document Open Filing FORM 4 01 May 2023 27 Apr 2023 000-50171
4 Open Document Open Filing FORM 4 20 Apr 2023 18 Apr 2023 000-50171
4 Open Document Open Filing FORM 4 05 Apr 2023 03 Apr 2023 000-50171
4 Open Document Open Filing FORM 4 04 Jan 2023 30 Dec 2022 000-50171
4 Open Document Open Filing FORM 4 08 Jun 2022 06 Jun 2022 000-50171
4 Open Document Open Filing FORM 4 27 May 2022 25 May 2022 000-50171
4 Open Document Open Filing FORM 4 16 May 2022 12 May 2022 000-50171
4 Open Document Open Filing FORM 4 04 May 2022 02 May 2022 000-50171
4 Open Document Open Filing FORM 4 29 Apr 2022 27 Apr 2022 000-50171
4 Open Document Open Filing FORM 4 21 Mar 2022 18 Mar 2022 000-50171
4 Open Document Open Filing FORM 4 18 Mar 2022 16 Mar 2022 000-50171
4 Open Document Open Filing FORM 4 17 Mar 2022 15 Mar 2022 000-50171
4 Open Document Open Filing FORM 4 16 Mar 2022 14 Mar 2022 000-50171
4 Open Document Open Filing FORM 4 15 Mar 2022 11 Mar 2022 000-50171
4 Open Document Open Filing FORM 4 14 Mar 2022 10 Mar 2022 000-50171
4 Open Document Open Filing FORM 4 11 Mar 2022 09 Mar 2022 000-50171
4 Open Document Open Filing FORM 4 10 Mar 2022 08 Mar 2022 000-50171
4/A Open Document Open Filing PRIMARY DOCUMENT 01 Mar 2022 23 Nov 2021 000-50171
4 Open Document Open Filing FORM 4 17 Dec 2021 16 Dec 2021 000-50171
4 Open Document Open Filing FORM 4 24 Nov 2021 23 Nov 2021 000-50171
4 Open Document Open Filing FORM 4 09 Nov 2021 05 Nov 2021 000-50171
4 Open Document Open Filing FORM 4 08 Nov 2021 04 Nov 2021 000-50171
4 Open Document Open Filing FORM 4 05 Nov 2021 03 Nov 2021 000-50171
SC 13G/A Open Document Open Filing SC 13G/A AMENDMENT 6 16 Jul 2021
4 Open Document Open Filing PRIMARY DOCUMENT 13 May 2021 11 May 2021 000-50171
4 Open Document Open Filing PRIMARY DOCUMENT 10 May 2021 07 May 2021 000-50171
4 Open Document Open Filing PRIMARY DOCUMENT 06 May 2021 05 May 2021 000-50171
4 Open Document Open Filing PRIMARY DOCUMENT 03 May 2021 03 May 2021 000-50171
4 Open Document Open Filing PRIMARY DOCUMENT 19 Apr 2021 15 Apr 2021 001-36589
4 Open Document Open Filing PRIMARY DOCUMENT 24 Feb 2021 23 Feb 2021 001-36589
SC 13G/A Open Document Open Filing 13G AMENDMENT 4 03 Feb 2021
4 Open Document Open Filing PRIMARY DOCUMENT 26 Oct 2020 22 Oct 2020 000-50171
4 Open Document Open Filing PRIMARY DOCUMENT 29 Jul 2020 27 Jul 2020 001-36589
4 Open Document Open Filing FORM 4 02 Jun 2020 29 May 2020 000-50171
4 Open Document Open Filing PRIMARY DOCUMENT 01 Apr 2020 30 Mar 2020 000-50171
4 Open Document Open Filing PRIMARY DOCUMENT 31 Mar 2020 27 Mar 2020 000-50171
4 Open Document Open Filing PRIMARY DOCUMENT 30 Mar 2020 26 Mar 2020 000-50171
4 Open Document Open Filing PRIMARY DOCUMENT 27 Mar 2020 25 Mar 2020 000-50171
4 Open Document Open Filing PRIMARY DOCUMENT 26 Mar 2020 24 Mar 2020 000-50171
4 Open Document Open Filing PRIMARY DOCUMENT 25 Mar 2020 23 Mar 2020 000-50171
4 Open Document Open Filing PRIMARY DOCUMENT 24 Mar 2020 20 Mar 2020 000-50171
4 Open Document Open Filing PRIMARY DOCUMENT 19 Mar 2020 17 Mar 2020 000-50171
4 Open Document Open Filing FORM 4 17 Mar 2020 13 Mar 2020 000-50171
4 Open Document Open Filing PRIMARY DOCUMENT 16 Mar 2020 12 Mar 2020 000-50171
4 Open Document Open Filing FORM 4 08 Nov 2019 06 Nov 2019 000-50171
4 Open Document Open Filing FORM 4 17 Sep 2019 13 Sep 2019 000-50171
4 Open Document Open Filing FORM 4 06 Sep 2019 05 Sep 2019 000-50171
4 Open Document Open Filing FORM 4 04 Sep 2019 30 Aug 2019 000-50171
4 Open Document Open Filing FORM 4 07 Aug 2019 05 Aug 2019 000-50171
4 Open Document Open Filing FORM 4 31 Jul 2019 29 Jul 2019 000-50171
4 Open Document Open Filing FORM 4 26 Jul 2019 24 Jul 2019 000-50171
4 Open Document Open Filing PRIMARY DOCUMENT 17 Jun 2019 13 Jun 2019 000-50171
4 Open Document Open Filing PRIMARY DOCUMENT 30 May 2019 28 May 2019 000-50171
4 Open Document Open Filing PRIMARY DOCUMENT 24 May 2019 22 May 2019 000-50171
4 Open Document Open Filing PRIMARY DOCUMENT 16 May 2019 14 May 2019 000-50171
4 Open Document Open Filing PRIMARY DOCUMENT 14 Feb 2019 13 Feb 2019 000-50171
SC 13G/A Open Document Open Filing SCHEDULE 13G AMENDMENT 14 Feb 2019
4 Open Document Open Filing PRIMARY DOCUMENT 01 Nov 2018 30 Oct 2018 000-50171
4 Open Document Open Filing PRIMARY DOCUMENT 29 Oct 2018 24 Oct 2018 000-50171
4 Open Document Open Filing PRIMARY DOCUMENT 04 Sep 2018 30 Aug 2018 000-50171
4 Open Document Open Filing PRIMARY DOCUMENT 22 Aug 2018 20 Aug 2018 000-50171
4 Open Document Open Filing PRIMARY DOCUMENT 15 Aug 2018 13 Aug 2018 001-36589
4 Open Document Open Filing PRIMARY DOCUMENT 02 Aug 2018 31 Jul 2018 000-50171
4 Open Document Open Filing PRIMARY DOCUMENT 30 Jul 2018 26 Jul 2018 000-50171
4 Open Document Open Filing PRIMARY DOCUMENT 03 Jul 2018 02 Jul 2018 001-36589
4 Open Document Open Filing PRIMARY DOCUMENT 18 Jun 2018 15 Jun 2018 000-50171
4 Open Document Open Filing PRIMARY DOCUMENT 14 Jun 2018 12 Jun 2018 000-50171
4 Open Document Open Filing PRIMARY DOCUMENT 05 Jun 2018 01 Jun 2018 000-50171
4/A Open Document Open Filing PRIMARY DOCUMENT 17 May 2018 15 May 2018 000-50171
4 Open Document Open Filing PRIMARY DOCUMENT 16 May 2018 14 May 2018 000-50171
4 Open Document Open Filing PRIMARY DOCUMENT 04 May 2018 02 May 2018 000-50171
4 Open Document Open Filing PRIMARY DOCUMENT 27 Apr 2018 25 Apr 2018 000-50171
4 Open Document Open Filing PRIMARY DOCUMENT 26 Mar 2018 22 Mar 2018 001-36589
4 Open Document Open Filing PRIMARY DOCUMENT 26 Feb 2018 22 Feb 2018 001-36589
SC 13G/A Open Document Open Filing SCHEDULE 13G AMENDMENT 2 15 Feb 2018
4 Open Document Open Filing PRIMARY DOCUMENT 15 Feb 2018 13 Feb 2018 000-50171
4 Open Document Open Filing PRIMARY DOCUMENT 29 Dec 2017 27 Dec 2017 001-36589
4 Open Document Open Filing PRIMARY DOCUMENT 08 Dec 2017 06 Dec 2017 001-36589
4 Open Document Open Filing PRIMARY DOCUMENT 04 Dec 2017 30 Nov 2017 001-36589
4 Open Document Open Filing PRIMARY DOCUMENT 28 Nov 2017 24 Nov 2017 001-36589
4 Open Document Open Filing PRIMARY DOCUMENT 22 Nov 2017 20 Nov 2017 001-36589
4 Open Document Open Filing PRIMARY DOCUMENT 13 Nov 2017 08 Nov 2017 001-36589
4 Open Document Open Filing PRIMARY DOCUMENT 06 Nov 2017 02 Nov 2017 001-36589
4 Open Document Open Filing PRIMARY DOCUMENT 27 Oct 2017 25 Oct 2017 001-36589
4 Open Document Open Filing PRIMARY DOCUMENT 25 Oct 2017 23 Oct 2017 001-36589
4 Open Document Open Filing PRIMARY DOCUMENT 13 Oct 2017 11 Oct 2017 001-36589
4 Open Document Open Filing PRIMARY DOCUMENT 19 Sep 2017 15 Sep 2017 001-36589
4 Open Document Open Filing PRIMARY DOCUMENT 14 Sep 2017 12 Sep 2017 001-36589
4 Open Document Open Filing PRIMARY DOCUMENT 11 Sep 2017 08 Sep 2017 001-36589
4 Open Document Open Filing PRIMARY DOCUMENT 05 Sep 2017 31 Aug 2017 001-36589
4 Open Document Open Filing PRIMARY DOCUMENT 30 Aug 2017 28 Aug 2017 001-36589
4 Open Document Open Filing PRIMARY DOCUMENT 25 Aug 2017 23 Aug 2017 001-36589
4 Open Document Open Filing PRIMARY DOCUMENT 23 Aug 2017 21 Aug 2017 001-36589
4 Open Document Open Filing PRIMARY DOCUMENT 03 Aug 2017 03 Aug 2017 001-36589
4 Open Document Open Filing PRIMARY DOCUMENT 01 Aug 2017 28 Jul 2017 000-50171
4 Open Document Open Filing PRIMARY DOCUMENT 27 Jun 2017 24 Jun 2017 001-36589
4 Open Document Open Filing PRIMARY DOCUMENT 23 Jun 2017 22 Jun 2017 000-50171
4 Open Document Open Filing PRIMARY DOCUMENT 21 Jun 2017 19 Jun 2017 000-50171
4 Open Document Open Filing PRIMARY DOCUMENT 16 Jun 2017 14 Jun 2017 000-50171
4 Open Document Open Filing PRIMARY DOCUMENT 15 Jun 2017 13 Jun 2017 000-50171
4 Open Document Open Filing PRIMARY DOCUMENT 14 Jun 2017 14 Jun 2017 001-36589
4 Open Document Open Filing PRIMARY DOCUMENT 13 Jun 2017 09 Jun 2017 000-50171
4 Open Document Open Filing PRIMARY DOCUMENT 05 Jun 2017 01 Jun 2017 000-50171
4 Open Document Open Filing FORM 4 SUBMISSION 30 May 2017 25 May 2017 000-50171
4 Open Document Open Filing FORM 4 30 May 2017 25 May 2017 000-50171
SC 13G/A Open Document Open Filing SC 13G/A 22 May 2017
3 Open Document Open Filing FORM 3 SUBMISSION 22 May 2017 18 May 2017 001-36589
SC 13G Open Document Open Filing SC 13G 14 Dec 2016
4 Open Document Open Filing PRIMARY DOCUMENT 07 Jul 2015 02 Jul 2015 000-50171
4 Open Document Open Filing PRIMARY DOCUMENT 21 Mar 2014 20 Mar 2014 000-50171