ALEXANDER DENNER

Business address
C/O Sarissa Capital Management Lp, 660 Steamboat Road, 3 Rd Floor, Greenwich, CT, 06830
Top holdings (ownership)
BIIB, INVA, and IRWD
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ALEXANDER DENNER has filed 147 SEC EDGAR filings since 05 May 2006

Latest Filings

Form type Document Filing Description Filing date Reporting date File number(s)
4 Open Document Open Filing 4 17 Dec 2025 15 Dec 2025 001-34620
4 Open Document Open Filing 4 17 Sep 2025 15 Sep 2025 001-34620
4 Open Document Open Filing 4 17 Jun 2025 13 Jun 2025 001-34620
4 Open Document Open Filing 4 12 Jun 2025 10 Jun 2025 001-34620
4 Open Document Open Filing 4 04 Apr 2025 02 Apr 2025 001-34620
4/A Open Document Open Filing 17 Mar 2025 04 Mar 2025 000-30319
4 Open Document Open Filing 06 Mar 2025 04 Mar 2025 000-30319
4 Open Document Open Filing 4 18 Dec 2024 16 Dec 2024 001-34620
4 Open Document Open Filing 4 18 Sep 2024 16 Sep 2024 001-34620
4 Open Document Open Filing 4 21 Jun 2024 18 Jun 2024 001-34620
4 Open Document Open Filing 4 18 Jun 2024 15 Jun 2024 001-34620
4 Open Document Open Filing 4 19 Mar 2024 15 Mar 2024 001-34620
4 Open Document Open Filing FORM 4 SUBMISSION 19 Dec 2023 15 Dec 2023 001-34620
4 Open Document Open Filing FORM 4 SUBMISSION 19 Sep 2023 15 Sep 2023 001-34620
4 Open Document Open Filing FORM 4 SUBMISSION 22 Jun 2023 20 Jun 2023 001-34620
4 Open Document Open Filing 20 Jun 2023 15 Jun 2023 000-30319
4 Open Document Open Filing FORM 4 SUBMISSION 20 Jun 2023 15 Jun 2023 001-34620
4 Open Document Open Filing 07 Jun 2023 05 Jun 2023 000-30319
4 Open Document Open Filing 30 May 2023 25 May 2023 000-30319
4/A Open Document Open Filing 19 May 2023 17 May 2023 000-30319
4 Open Document Open Filing 19 May 2023 17 May 2023 000-30319
4 Open Document Open Filing 15 May 2023 11 May 2023 000-30319
3 Open Document Open Filing 15 May 2023 09 May 2023 000-30319
4 Open Document Open Filing FORM 4 SUBMISSION 17 Mar 2023 15 Mar 2023 001-34620
4 Open Document Open Filing FORM 4 SUBMISSION 19 Dec 2022 15 Dec 2022 001-34620
4 Open Document Open Filing FORM 4 SUBMISSION 19 Sep 2022 15 Sep 2022 001-34620
4 Open Document Open Filing FORM 4 SUBMISSION 17 Jun 2022 15 Jun 2022 001-34620
4 Open Document Open Filing PRIMARY DOCUMENT 17 Jun 2022 15 Jun 2022 000-19311
4 Open Document Open Filing FORM 4 SUBMISSION 03 Jun 2022 01 Jun 2022 001-34620
4 Open Document Open Filing FORM 4 SUBMISSION 17 Mar 2022 15 Mar 2022 001-34620
4 Open Document Open Filing FORM 4 SUBMISSION 17 Dec 2021 15 Dec 2021 001-34620
4 Open Document Open Filing FORM 4 SUBMISSION 17 Sep 2021 15 Sep 2021 001-34620
4 Open Document Open Filing PRIMARY DOCUMENT 02 Jul 2021 01 Jul 2021 000-19311
4 Open Document Open Filing FORM 4 SUBMISSION 16 Jun 2021 15 Jun 2021 001-34620
4 Open Document Open Filing FORM 4 SUBMISSION 04 Jun 2021 02 Jun 2021 001-34620
4 Open Document Open Filing FORM 4 SUBMISSION 17 Mar 2021 15 Mar 2021 001-34620
4 Open Document Open Filing FORM 4 10 Mar 2021 08 Mar 2021 001-34620
4 Open Document Open Filing FORM 4 05 Mar 2021 03 Mar 2021 001-34620
4 Open Document Open Filing FORM 4 02 Mar 2021 26 Feb 2021 001-34620
4 Open Document Open Filing FORM 4 SUBMISSION 12 Feb 2021 11 Feb 2021 001-38503
4 Open Document Open Filing FORM 4 SUBMISSION 17 Dec 2020 15 Dec 2020 001-34620
3 Open Document Open Filing FORM 3 23 Nov 2020 22 Nov 2020 001-38503
4 Open Document Open Filing FORM 4 SUBMISSION 09 Nov 2020 09 Nov 2020 001-34620
3 Open Document Open Filing FORM 3 SUBMISSION 09 Nov 2020 09 Nov 2020 001-34620
4 Open Document Open Filing FORM 4 SUBMISSION 03 Nov 2020 30 Oct 2020 001-39640
4 Open Document Open Filing FORM 4 SUBMISSION 23 Oct 2020 23 Oct 2020 001-39640
3 Open Document Open Filing FORM 3 SUBMISSION 20 Oct 2020 20 Oct 2020 001-39640
4 Open Document Open Filing PRIMARY DOCUMENT 05 Jun 2020 03 Jun 2020 000-19311
4 Open Document Open Filing OWNERSHIP DOCUMENT 06 Jan 2020 06 Jan 2020 000-31191
4 Open Document Open Filing FORM 4 03 Jan 2020 24 Dec 2019 001-35670
4 Open Document Open Filing OWNERSHIP DOCUMENT 28 Jun 2019 28 Jun 2019 000-31191
4 Open Document Open Filing PRIMARY DOCUMENT 20 Jun 2019 19 Jun 2019 000-19311
4 Open Document Open Filing FORM 4 - 03 Jun 2019 30 May 2019 000-31191
4 Open Document Open Filing FORM 4 - 31 May 2019 29 May 2019 000-31191
4 Open Document Open Filing FORM 4 - 22 May 2019 20 May 2019 000-31191
3 Open Document Open Filing FORM 3 17 May 2019 07 May 2019 001-35670
4 Open Document Open Filing PRIMARY DOCUMENT 02 May 2019 30 Apr 2019 000-19311
4 Open Document Open Filing FORM 4 - 08 Mar 2019 06 Mar 2019 000-31191
4 Open Document Open Filing FORM 4 - 05 Mar 2019 01 Mar 2019 000-31191
4 Open Document Open Filing PRIMARY DOCUMENT 01 Feb 2019 30 Jan 2019 000-19311
4 Open Document Open Filing FORM 4 - 21 Dec 2018 20 Dec 2018 000-31191
4 Open Document Open Filing FORM 4 - 18 Dec 2018 17 Dec 2018 000-31191
4 Open Document Open Filing FORM 4 - 17 Dec 2018 13 Dec 2018 000-31191
4 Open Document Open Filing PRIMARY DOCUMENT 14 Jun 2018 12 Jun 2018 000-19311
4 Open Document Open Filing FORM 4 - 04 Jun 2018 31 May 2018 000-31191
4 Open Document Open Filing PRIMARY DOCUMENT 27 Apr 2018 25 Apr 2018 000-19311
4 Open Document Open Filing FORM 4 23 Mar 2018 21 Mar 2018 000-22245
4 Open Document Open Filing PRIMARY DOCUMENT 08 Mar 2018 08 Mar 2018 001-37859
4 Open Document Open Filing PRIMARY DOCUMENT 02 Feb 2018 31 Jan 2018 001-37859
4 Open Document Open Filing FORM 4 SUBMISSION 30 Nov 2017 29 Nov 2017 000-31191
4 Open Document Open Filing FORM 4 SUBMISSION 30 Nov 2017 28 Nov 2017 000-19311
4 Open Document Open Filing FORM 4 01 Sep 2017 31 Aug 2017 000-22245
4 Open Document Open Filing FORM 4 31 Aug 2017 31 Aug 2017 000-31191
4 Open Document Open Filing FORM 4 31 Aug 2017 31 Aug 2017 001-37859
4 Open Document Open Filing FORM 4 31 Aug 2017 31 Aug 2017 000-19311
4 Open Document Open Filing PRIMARY DOCUMENT 09 Jun 2017 07 Jun 2017 000-19311
4 Open Document Open Filing PRIMARY DOCUMENT 01 Jun 2017 30 May 2017 001-37859
4 Open Document Open Filing FORM 4 - 30 May 2017 25 May 2017 000-31191
4 Open Document Open Filing PRIMARY DOCUMENT 26 May 2017 24 May 2017 001-37859
4 Open Document Open Filing PRIMARY DOCUMENT 01 May 2017 27 Apr 2017 000-19311
4 Open Document Open Filing PRIMARY DOCUMENT 17 Apr 2017 17 Apr 2017 001-37859
4/A Open Document Open Filing PRIMARY DOCUMENT 27 Mar 2017 14 Feb 2017 001-37859
4 Open Document Open Filing PRIMARY DOCUMENT 16 Feb 2017 14 Feb 2017 001-37859
4 Open Document Open Filing FORM 4 16 Feb 2017 16 Feb 2017 001-36172
4 Open Document Open Filing FORM 4 02 Feb 2017 31 Jan 2017 001-36172
3 Open Document Open Filing PRIMARY DOCUMENT 19 Jan 2017 10 Jan 2017 001-37859
4 Open Document Open Filing PRIMARY DOCUMENT 09 Jun 2016 08 Jun 2016 000-19311
4 Open Document Open Filing FORM 4 - 31 May 2016 26 May 2016 000-31191
4 Open Document Open Filing FORM 4 07 Mar 2016 03 Mar 2016 000-22245
4 Open Document Open Filing FORM 4 04 Feb 2016 02 Feb 2016 000-31191
3 Open Document Open Filing FORM 3 04 Feb 2016 02 Feb 2016 000-31191
4 Open Document Open Filing PRIMARY DOCUMENT 03 Feb 2016 01 Feb 2016 001-36172
4 Open Document Open Filing 4 14 Jan 2016 12 Jan 2016 000-22245
4 Open Document Open Filing PRIMARY DOCUMENT 03 Nov 2015 30 Oct 2015 001-33389
4 Open Document Open Filing FORM 4 SUBMISSION 26 Oct 2015 22 Oct 2015 000-19311
4 Open Document Open Filing PRIMARY DOCUMENT 11 Jun 2015 10 Jun 2015 000-19311
4 Open Document Open Filing 4 29 May 2015 27 May 2015 001-33389
3 Open Document Open Filing FORM 3 23 Feb 2015 13 Feb 2015 000-22245
4 Open Document Open Filing PRIMARY DOCUMENT 04 Feb 2015 31 Jan 2015 001-36172
4 Open Document Open Filing PRIMARY DOCUMENT 19 Aug 2014 15 Aug 2014 001-36172
4 Open Document Open Filing PRIMARY DOCUMENT 16 Jun 2014 12 Jun 2014 000-19311
4 Open Document Open Filing PRIMARY DOCUMENT 24 Feb 2014 20 Feb 2014 001-36172
3 Open Document Open Filing PRIMARY DOCUMENT 24 Feb 2014 20 Feb 2014 001-36172