Jennifer L. Hamann

Business address
1400 Douglas Street, Omaha, NE, 68130
Top holdings (ownership)
UNP and STLD
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Jennifer L. Hamann has filed 86 SEC EDGAR filings since 02 Jan 2020

Latest Filings

Form type Document Filing Description Filing date Reporting date File number(s)
4 Open Document Open Filing PRIMARY DOCUMENT 04 Dec 2025 04 Dec 2025 001-06075
4 Open Document Open Filing STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES 06 Nov 2025 06 Nov 2025 000-21719
4 Open Document Open Filing STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES 14 Oct 2025 10 Oct 2025 000-21719
4 Open Document Open Filing PRIMARY DOCUMENT 14 Oct 2025 10 Oct 2025 001-06075
4 Open Document Open Filing PRIMARY DOCUMENT 11 Sep 2025 10 Sep 2025 001-06075
4 Open Document Open Filing STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES 15 Aug 2025 14 Aug 2025 000-21719
4 Open Document Open Filing PRIMARY DOCUMENT 11 Aug 2025 10 Aug 2025 001-06075
4 Open Document Open Filing STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES 14 Jul 2025 11 Jul 2025 000-21719
4 Open Document Open Filing PRIMARY DOCUMENT 11 Jul 2025 10 Jul 2025 001-06075
4 Open Document Open Filing PRIMARY DOCUMENT 11 Jun 2025 10 Jun 2025 001-06075
4 Open Document Open Filing STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES 03 Jun 2025 02 Jun 2025 000-21719
4 Open Document Open Filing PRIMARY DOCUMENT 12 May 2025 10 May 2025 001-06075
4 Open Document Open Filing STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES 25 Apr 2025 25 Apr 2025 000-21719
4 Open Document Open Filing STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES 14 Apr 2025 11 Apr 2025 000-21719
4 Open Document Open Filing PRIMARY DOCUMENT 11 Apr 2025 10 Apr 2025 001-06075
4 Open Document Open Filing PRIMARY DOCUMENT 11 Mar 2025 10 Mar 2025 001-06075
4 Open Document Open Filing STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES 24 Feb 2025 21 Feb 2025 000-21719
4 Open Document Open Filing PRIMARY DOCUMENT 11 Feb 2025 10 Feb 2025 001-06075
4 Open Document Open Filing PRIMARY DOCUMENT 07 Feb 2025 06 Feb 2025 001-06075
4 Open Document Open Filing PRIMARY DOCUMENT 29 Jan 2025 28 Jan 2025 001-06075
4 Open Document Open Filing STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES 13 Jan 2025 10 Jan 2025 000-21719
4 Open Document Open Filing PRIMARY DOCUMENT 04 Dec 2024 03 Dec 2024 001-06075
4 Open Document Open Filing STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES 08 Nov 2024 07 Nov 2024 000-21719
4 Open Document Open Filing PRIMARY DOCUMENT 11 Oct 2024 10 Oct 2024 001-06075
4 Open Document Open Filing STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES 11 Oct 2024 11 Oct 2024 000-21719
4 Open Document Open Filing PRIMARY DOCUMENT 11 Sep 2024 10 Sep 2024 001-06075
4 Open Document Open Filing STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES 16 Aug 2024 15 Aug 2024 000-21719
4 Open Document Open Filing PRIMARY DOCUMENT 12 Aug 2024 10 Aug 2024 001-06075
4 Open Document Open Filing STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES 15 Jul 2024 12 Jul 2024 000-21719
4 Open Document Open Filing PRIMARY DOCUMENT 10 Jul 2024 10 Jul 2024 001-06075
4 Open Document Open Filing PRIMARY DOCUMENT 12 Jun 2024 10 Jun 2024 001-06075
4 Open Document Open Filing STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES 03 Jun 2024 03 Jun 2024 000-21719
4 Open Document Open Filing PRIMARY DOCUMENT 13 May 2024 10 May 2024 001-06075
4 Open Document Open Filing STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES 15 Apr 2024 12 Apr 2024 000-21719
4 Open Document Open Filing PRIMARY DOCUMENT 11 Apr 2024 10 Apr 2024 001-06075
4 Open Document Open Filing PRIMARY DOCUMENT 11 Mar 2024 10 Mar 2024 001-06075
4 Open Document Open Filing PRIMARY DOCUMENT 28 Feb 2024 26 Feb 2024 001-06075
4 Open Document Open Filing PRIMARY DOCUMENT 12 Feb 2024 08 Feb 2024 001-06075
4 Open Document Open Filing STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES 17 Jan 2024 16 Jan 2024 000-21719
4 Open Document Open Filing PRIMARY DOCUMENT 14 Dec 2023 13 Dec 2023 001-06075
4 Open Document Open Filing PRIMARY DOCUMENT 21 Nov 2023 20 Nov 2023 001-06075
4 Open Document Open Filing PRIMARY DOCUMENT 14 Nov 2023 10 Nov 2023 001-06075
4 Open Document Open Filing STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES 02 Nov 2023 01 Nov 2023 000-21719
3 Open Document Open Filing INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES 02 Nov 2023 18 Sep 2023 000-21719
4 Open Document Open Filing PRIMARY DOCUMENT 11 Sep 2023 10 Sep 2023 001-06075
4 Open Document Open Filing PRIMARY DOCUMENT 25 Aug 2023 23 Aug 2023 001-06075
4 Open Document Open Filing PRIMARY DOCUMENT 14 Aug 2023 10 Aug 2023 001-06075
4 Open Document Open Filing PRIMARY DOCUMENT 12 Jul 2023 10 Jul 2023 001-06075
4 Open Document Open Filing PRIMARY DOCUMENT 13 Jun 2023 10 Jun 2023 001-06075
4 Open Document Open Filing PRIMARY DOCUMENT 12 May 2023 10 May 2023 001-06075
4 Open Document Open Filing PRIMARY DOCUMENT 11 Apr 2023 10 Apr 2023 001-06075
4 Open Document Open Filing PRIMARY DOCUMENT 14 Mar 2023 10 Mar 2023 001-06075
4 Open Document Open Filing PRIMARY DOCUMENT 13 Feb 2023 09 Feb 2023 001-06075
4 Open Document Open Filing PRIMARY DOCUMENT 12 Dec 2022 10 Dec 2022 001-06075
4 Open Document Open Filing PRIMARY DOCUMENT 14 Nov 2022 10 Nov 2022 001-06075
4 Open Document Open Filing PRIMARY DOCUMENT 11 Oct 2022 10 Oct 2022 001-06075
4 Open Document Open Filing PRIMARY DOCUMENT 12 Sep 2022 10 Sep 2022 001-06075
4 Open Document Open Filing PRIMARY DOCUMENT 11 Aug 2022 10 Aug 2022 001-06075
4 Open Document Open Filing PRIMARY DOCUMENT 12 Jul 2022 10 Jul 2022 001-06075
4 Open Document Open Filing PRIMARY DOCUMENT 14 Jun 2022 10 Jun 2022 001-06075
4 Open Document Open Filing PRIMARY DOCUMENT 12 May 2022 10 May 2022 001-06075
4 Open Document Open Filing PRIMARY DOCUMENT 12 Apr 2022 10 Apr 2022 001-06075
4 Open Document Open Filing PRIMARY DOCUMENT 21 Mar 2022 17 Mar 2022 001-06075
4 Open Document Open Filing PRIMARY DOCUMENT 11 Mar 2022 10 Mar 2022 001-06075
4 Open Document Open Filing PRIMARY DOCUMENT 11 Feb 2022 10 Feb 2022 001-06075
4 Open Document Open Filing PRIMARY DOCUMENT 09 Feb 2022 07 Feb 2022 001-06075
4 Open Document Open Filing PRIMARY DOCUMENT 04 Feb 2022 03 Feb 2022 001-06075
4 Open Document Open Filing PRIMARY DOCUMENT 12 Jan 2022 10 Jan 2022 001-06075
4 Open Document Open Filing PRIMARY DOCUMENT 14 Dec 2021 10 Dec 2021 001-06075
4 Open Document Open Filing PRIMARY DOCUMENT 12 Nov 2021 10 Nov 2021 001-06075
4 Open Document Open Filing PRIMARY DOCUMENT 26 Oct 2021 25 Oct 2021 001-06075
4 Open Document Open Filing PRIMARY DOCUMENT 12 Oct 2021 10 Oct 2021 001-06075
4 Open Document Open Filing PRIMARY DOCUMENT 14 Sep 2021 10 Sep 2021 001-06075
4 Open Document Open Filing PRIMARY DOCUMENT 12 Aug 2021 10 Aug 2021 001-06075
4 Open Document Open Filing PRIMARY DOCUMENT 07 Apr 2021 06 Apr 2021 001-06075
4 Open Document Open Filing PRIMARY DOCUMENT 09 Feb 2021 08 Feb 2021 001-06075
4 Open Document Open Filing PRIMARY DOCUMENT 05 Feb 2021 04 Feb 2021 001-06075
4 Open Document Open Filing PRIMARY DOCUMENT 03 Feb 2021 02 Feb 2021 001-06075
4 Open Document Open Filing PRIMARY DOCUMENT 16 Dec 2020 10 Dec 2020 001-06075
4 Open Document Open Filing PRIMARY DOCUMENT 14 Sep 2020 10 Sep 2020 001-06075
4 Open Document Open Filing PRIMARY DOCUMENT 14 Aug 2020 13 Aug 2020 001-06075
4 Open Document Open Filing PRIMARY DOCUMENT 07 Feb 2020 06 Feb 2020 001-06075
4 Open Document Open Filing PRIMARY DOCUMENT 05 Feb 2020 04 Feb 2020 001-06075
4 Open Document Open Filing PRIMARY DOCUMENT 03 Feb 2020 31 Jan 2020 001-06075
4 Open Document Open Filing PRIMARY DOCUMENT 21 Jan 2020 16 Jan 2020 001-06075
3 Open Document Open Filing PRIMARY DOCUMENT 02 Jan 2020 01 Jan 2020 001-06075