Barbara Kosacz

Business address
3175 Hanover Street, Palo Alto, CA, 94304
Top holdings (ownership)
KRON, XOMA, and CERO
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Barbara Kosacz has filed 28 SEC EDGAR filings since 03 Jan 2019

Latest Filings

Form type Document Filing Description Filing date Reporting date File number(s)
4 Open Document Open Filing 03 Jun 2025 30 May 2025 001-39503
4 Open Document Open Filing PRIMARY DOCUMENT 23 May 2025 21 May 2025 001-39801
4 Open Document Open Filing PRIMARY DOCUMENT 23 May 2025 21 May 2025 001-39801
4 Open Document Open Filing 24 May 2024 24 May 2024 001-39503
4 Open Document Open Filing PRIMARY DOCUMENT 17 May 2024 15 May 2024 001-39801
4 Open Document Open Filing 16 Feb 2024 14 Feb 2024 001-40877
4 Open Document Open Filing FORM 4 SUBMISSION 05 Jan 2024 04 Jan 2024 001-39592
4 Open Document Open Filing FORM 4 SUBMISSION 22 May 2023 19 May 2023 001-39503
4 Open Document Open Filing PRIMARY DOCUMENT 19 May 2023 17 May 2023 001-39801
4 Open Document Open Filing FORM 4 SUBMISSION 17 Feb 2023 15 Feb 2023 001-39592
4 Open Document Open Filing FORM 4 SUBMISSION 27 Jul 2022 25 Jul 2022 001-39592
4 Open Document Open Filing FORM 4 SUBMISSION 27 May 2022 20 May 2022 001-39503
4 Open Document Open Filing PRIMARY DOCUMENT 20 May 2022 18 May 2022 001-39801
4 Open Document Open Filing FORM 4 SUBMISSION 17 Feb 2022 15 Feb 2022 001-39592
4 Open Document Open Filing FORM 4 SUBMISSION 12 Oct 2021 08 Oct 2021 001-40877
3 Open Document Open Filing FORM 3 SUBMISSION 05 Oct 2021 05 Oct 2021 001-40877
4 Open Document Open Filing PRIMARY DOCUMENT 21 May 2021 19 May 2021 001-39801
4 Open Document Open Filing FORM 4 SUBMISSION 08 Mar 2021 04 Mar 2021 001-39503
3 Open Document Open Filing FORM 3 SUBMISSION 08 Mar 2021 04 Mar 2021 001-39503
4 Open Document Open Filing FORM 4 SUBMISSION 14 Jan 2021 12 Jan 2021 001-39866
3 Open Document Open Filing FORM 3 SUBMISSION 07 Jan 2021 07 Jan 2021 001-39866
4 Open Document Open Filing FORM 4 SUBMISSION 11 Dec 2020 09 Dec 2020 001-39592
4 Open Document Open Filing FORM 4 SUBMISSION 16 Oct 2020 14 Oct 2020 001-39592
3 Open Document Open Filing FORM 3 SUBMISSION 08 Oct 2020 08 Oct 2020 001-39592
4 Open Document Open Filing PRIMARY DOCUMENT 27 May 2020 20 May 2020 000-14710
4 Open Document Open Filing PRIMARY DOCUMENT 20 May 2019 16 May 2019 000-14710
4 Open Document Open Filing PRIMARY DOCUMENT 03 Jan 2019 01 Jan 2019 000-14710
3 Open Document Open Filing PRIMARY DOCUMENT 03 Jan 2019 01 Jan 2019 000-14710