Margaret Horn

Business address
925 Page Mill Road, Palo Alto, CA, 94304
Top holdings (ownership)
RVMD and SGMO
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Margaret Horn has filed 71 SEC EDGAR filings since 17 Jun 2004

Latest Filings

Form type Document Filing Description Filing date Reporting date File number(s)
4 Open Document Open Filing 18 Dec 2025 16 Dec 2025 001-39219
144 Open Document Open Filing 12 Dec 2025
4 Open Document Open Filing 18 Sep 2025 16 Sep 2025 001-39219
144 Open Document Open Filing 15 Sep 2025
4 Open Document Open Filing 18 Jun 2025 16 Jun 2025 001-39219
4 Open Document Open Filing 16 Jun 2025 12 Jun 2025 000-30171
144 Open Document Open Filing 13 Jun 2025
4 Open Document Open Filing 19 Mar 2025 17 Mar 2025 001-39219
144 Open Document Open Filing 14 Mar 2025
4 Open Document Open Filing 04 Mar 2025 01 Mar 2025 001-39219
4 Open Document Open Filing 18 Dec 2024 16 Dec 2024 001-39219
144 Open Document Open Filing 16 Dec 2024
4 Open Document Open Filing 15 Oct 2024 11 Oct 2024 001-39219
144 Open Document Open Filing 11 Oct 2024
4 Open Document Open Filing 18 Sep 2024 16 Sep 2024 001-39219
144 Open Document Open Filing 16 Sep 2024
4 Open Document Open Filing 20 Jun 2024 17 Jun 2024 001-39219
144 Open Document Open Filing 14 Jun 2024
4 Open Document Open Filing 06 Jun 2024 04 Jun 2024 000-30171
4 Open Document Open Filing 20 Mar 2024 18 Mar 2024 001-39219
144 Open Document Open Filing 15 Mar 2024
4 Open Document Open Filing 13 Mar 2024 11 Mar 2024 001-39219
144 Open Document Open Filing 11 Mar 2024
4 Open Document Open Filing 05 Mar 2024 01 Mar 2024 001-39219
4 Open Document Open Filing 19 Dec 2023 15 Dec 2023 001-39219
144 Open Document Open Filing 15 Dec 2023
144/A Open Document Open Filing 14 Dec 2023
144 Open Document Open Filing 14 Dec 2023
4 Open Document Open Filing 08 Dec 2023 06 Dec 2023 001-39219
144 Open Document Open Filing 06 Dec 2023
4 Open Document Open Filing 25 Oct 2023 25 Oct 2023 001-39219
4 Open Document Open Filing 18 Oct 2023 16 Oct 2023 001-39219
144 Open Document Open Filing 16 Oct 2023
144 Open Document Open Filing 20 Sep 2023
4 Open Document Open Filing 19 Sep 2023 15 Sep 2023 001-39219
144 Open Document Open Filing 15 Sep 2023
4 Open Document Open Filing 01 Sep 2023 31 Aug 2023 001-39219
144 Open Document Open Filing 31 Aug 2023
4 Open Document Open Filing 17 Aug 2023 15 Aug 2023 001-39219
144 Open Document Open Filing 15 Aug 2023
4 Open Document Open Filing 22 Jun 2023 20 Jun 2023 001-39219
144 Open Document Open Filing 20 Jun 2023
4 Open Document Open Filing FORM 4 SUBMISSION 05 Jun 2023 01 Jun 2023 000-30171
4 Open Document Open Filing FORM 4 SUBMISSION 21 Mar 2023 17 Mar 2023 001-39219
4 Open Document Open Filing FORM 4 03 Mar 2023 01 Mar 2023 001-39219
4 Open Document Open Filing FORM 4 21 Dec 2022 19 Dec 2022 001-39219
4 Open Document Open Filing FORM 4 SUBMISSION 19 Dec 2022 15 Dec 2022 000-30171
3 Open Document Open Filing FORM 3 SUBMISSION 19 Dec 2022 15 Dec 2022 000-30171
4 Open Document Open Filing FORM 4 09 Nov 2022 07 Nov 2022 001-39219
4 Open Document Open Filing FORM 4 02 Nov 2022 31 Oct 2022 001-39219
4 Open Document Open Filing FORM 4 28 Oct 2022 26 Oct 2022 001-39219
4 Open Document Open Filing FORM 4 21 Sep 2022 19 Sep 2022 001-39219
4 Open Document Open Filing FORM 4 22 Jun 2022 17 Jun 2022 001-39219
4 Open Document Open Filing FORM 4 21 Mar 2022 17 Mar 2022 001-39219
4 Open Document Open Filing FORM 4 03 Mar 2022 01 Mar 2022 001-39219
4 Open Document Open Filing FORM 4 21 Dec 2021 17 Dec 2021 001-39219
4 Open Document Open Filing FORM 4 21 Sep 2021 17 Sep 2021 001-39219
4 Open Document Open Filing FORM 4 22 Jun 2021 17 Jun 2021 001-39219
4 Open Document Open Filing FORM 4 08 Mar 2021 04 Mar 2021 001-39219
4 Open Document Open Filing FORM 4 08 Feb 2021 05 Feb 2021 001-39219
4 Open Document Open Filing FORM 4 02 Oct 2020 01 Oct 2020 001-39219
4 Open Document Open Filing FORM 4 14 Feb 2020 12 Feb 2020 001-39219
3 Open Document Open Filing FORM 3 12 Feb 2020 12 Feb 2020 001-39219