Entity Type
Individual
Filer Snapshot
Alexander J. Denner SEC EDGAR Filings
SEC filings, ownership reports, and insider transactions for CIK 0001361754.
Total Filings
148
Latest Filing
17 Mar 2026
Industry
n/a
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Source: SEC Forms 3/4/5
View Source Filing
4 filed on 17 Mar 2026 for CIK 0001361754.
- Business address
- C/O Sarissa Capital Management Lp, 660 Steamboat Road, 3 Rd Floor, Greenwich, CT, 06830
- Top holdings (ownership)
- BIIB, INVA, and IRWD
Quick Takeaways
- Alexander J. Denner is an SEC filer tracked under CIK 0001361754.
- 148 filings are listed on this profile.
- Common form coverage includes 4, 4/A, 3 and more.
What Changed
- Latest filing: 4 filed on 17 Mar 2026.
- Report period: 13 Mar 2026.
Why This Matters
- You can quote filing dates and form types directly from the SEC record on this page.
- Use this profile before deeper ownership or insider analysis to confirm filing history context.
Source Evidence
Source: SEC Forms 3/4/5
View Source Filing
4 filed on 17 Mar 2026 for CIK 0001361754.
Return Loop
Why revisit this filer page
A newly filed 4 can change the filing history, ownership context, or next research path for Alexander J. Denner.
- Latest source-backed update
- 4 filed 17 Mar 2026
- Why come back
- Revisit after a new SEC filing appears to compare the updated record with prior filings.
- Latest filing on record: 4 filed 17 Mar 2026.
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- Open the latest filing table or ownership context to verify what changed.
Filer freshness comes from SEC EDGAR submission history and related source-backed ownership or portfolio filings when available.
Latest update
What changed recently for Alexander J. Denner
Latest ownership report period: 13 Mar 2026. Open the source-backed page to inspect the fresh filing or facts context.
Update date
17 Mar 2026
Page type
Ownership filings
Latest period
13 Mar 2026
Ownership context was refreshed from SEC Forms 3/4/5 filed on 17 Mar 2026.
Filer Overview
Alexander J. Denner has filed 148 SEC EDGAR filings since 05 May 2006. Common forms include 4, 4/A, 3, 3/A.
Latest Filings
Recent SEC filings for Alexander J. Denner with direct links to document and filing folders.
| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open 4 document | View SEC filing for 4 | 4 | 17 Mar 2026 | 13 Mar 2026 | 001-34620 |
| 4 | Open 4 document | View SEC filing for 4 | 4 | 17 Dec 2025 | 15 Dec 2025 | 001-34620 |
| 4 | Open 4 document | View SEC filing for 4 | 4 | 17 Sep 2025 | 15 Sep 2025 | 001-34620 |
| 4 | Open 4 document | View SEC filing for 4 | 4 | 17 Jun 2025 | 13 Jun 2025 | 001-34620 |
| 4 | Open 4 document | View SEC filing for 4 | 4 | 12 Jun 2025 | 10 Jun 2025 | 001-34620 |
| 4 | Open 4 document | View SEC filing for 4 | 4 | 04 Apr 2025 | 02 Apr 2025 | 001-34620 |
| 4/A | Open 4/A document | View SEC filing for 4/A | 17 Mar 2025 | 04 Mar 2025 | 000-30319 | |
| 4 | Open 4 document | View SEC filing for 4 | 06 Mar 2025 | 04 Mar 2025 | 000-30319 | |
| 4 | Open 4 document | View SEC filing for 4 | 4 | 18 Dec 2024 | 16 Dec 2024 | 001-34620 |
| 4 | Open 4 document | View SEC filing for 4 | 4 | 18 Sep 2024 | 16 Sep 2024 | 001-34620 |
| 4 | Open 4 document | View SEC filing for 4 | 4 | 21 Jun 2024 | 18 Jun 2024 | 001-34620 |
| 4 | Open 4 document | View SEC filing for 4 | 4 | 18 Jun 2024 | 15 Jun 2024 | 001-34620 |
| 4 | Open 4 document | View SEC filing for 4 | 4 | 19 Mar 2024 | 15 Mar 2024 | 001-34620 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 19 Dec 2023 | 15 Dec 2023 | 001-34620 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 19 Sep 2023 | 15 Sep 2023 | 001-34620 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 22 Jun 2023 | 20 Jun 2023 | 001-34620 |
| 4 | Open 4 document | View SEC filing for 4 | 20 Jun 2023 | 15 Jun 2023 | 000-30319 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 20 Jun 2023 | 15 Jun 2023 | 001-34620 |
| 4 | Open 4 document | View SEC filing for 4 | 07 Jun 2023 | 05 Jun 2023 | 000-30319 | |
| 4 | Open 4 document | View SEC filing for 4 | 30 May 2023 | 25 May 2023 | 000-30319 | |
| 4/A | Open 4/A document | View SEC filing for 4/A | 19 May 2023 | 17 May 2023 | 000-30319 | |
| 4 | Open 4 document | View SEC filing for 4 | 19 May 2023 | 17 May 2023 | 000-30319 | |
| 4 | Open 4 document | View SEC filing for 4 | 15 May 2023 | 11 May 2023 | 000-30319 | |
| 3 | Open 3 document | View SEC filing for 3 | 15 May 2023 | 09 May 2023 | 000-30319 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 17 Mar 2023 | 15 Mar 2023 | 001-34620 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 19 Dec 2022 | 15 Dec 2022 | 001-34620 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 19 Sep 2022 | 15 Sep 2022 | 001-34620 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 17 Jun 2022 | 15 Jun 2022 | 001-34620 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 17 Jun 2022 | 15 Jun 2022 | 000-19311 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 03 Jun 2022 | 01 Jun 2022 | 001-34620 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 17 Mar 2022 | 15 Mar 2022 | 001-34620 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 17 Dec 2021 | 15 Dec 2021 | 001-34620 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 17 Sep 2021 | 15 Sep 2021 | 001-34620 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 02 Jul 2021 | 01 Jul 2021 | 000-19311 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 16 Jun 2021 | 15 Jun 2021 | 001-34620 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 04 Jun 2021 | 02 Jun 2021 | 001-34620 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 17 Mar 2021 | 15 Mar 2021 | 001-34620 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 10 Mar 2021 | 08 Mar 2021 | 001-34620 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 05 Mar 2021 | 03 Mar 2021 | 001-34620 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 02 Mar 2021 | 26 Feb 2021 | 001-34620 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 12 Feb 2021 | 11 Feb 2021 | 001-38503 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 17 Dec 2020 | 15 Dec 2020 | 001-34620 |
| 3 | Open 3 document | View SEC filing for 3 | FORM 3 | 23 Nov 2020 | 22 Nov 2020 | 001-38503 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 09 Nov 2020 | 09 Nov 2020 | 001-34620 |
| 3 | Open 3 document | View SEC filing for 3 | FORM 3 SUBMISSION | 09 Nov 2020 | 09 Nov 2020 | 001-34620 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 03 Nov 2020 | 30 Oct 2020 | 001-39640 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 23 Oct 2020 | 23 Oct 2020 | 001-39640 |
| 3 | Open 3 document | View SEC filing for 3 | FORM 3 SUBMISSION | 20 Oct 2020 | 20 Oct 2020 | 001-39640 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 05 Jun 2020 | 03 Jun 2020 | 000-19311 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 06 Jan 2020 | 06 Jan 2020 | 000-31191 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 03 Jan 2020 | 24 Dec 2019 | 001-35670 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 28 Jun 2019 | 28 Jun 2019 | 000-31191 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 20 Jun 2019 | 19 Jun 2019 | 000-19311 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 - | 03 Jun 2019 | 30 May 2019 | 000-31191 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 - | 31 May 2019 | 29 May 2019 | 000-31191 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 - | 22 May 2019 | 20 May 2019 | 000-31191 |
| 3 | Open 3 document | View SEC filing for 3 | FORM 3 | 17 May 2019 | 07 May 2019 | 001-35670 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 02 May 2019 | 30 Apr 2019 | 000-19311 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 - | 08 Mar 2019 | 06 Mar 2019 | 000-31191 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 - | 05 Mar 2019 | 01 Mar 2019 | 000-31191 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 01 Feb 2019 | 30 Jan 2019 | 000-19311 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 - | 21 Dec 2018 | 20 Dec 2018 | 000-31191 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 - | 18 Dec 2018 | 17 Dec 2018 | 000-31191 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 - | 17 Dec 2018 | 13 Dec 2018 | 000-31191 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 14 Jun 2018 | 12 Jun 2018 | 000-19311 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 - | 04 Jun 2018 | 31 May 2018 | 000-31191 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 27 Apr 2018 | 25 Apr 2018 | 000-19311 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 23 Mar 2018 | 21 Mar 2018 | 000-22245 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 08 Mar 2018 | 08 Mar 2018 | 001-37859 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 02 Feb 2018 | 31 Jan 2018 | 001-37859 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 30 Nov 2017 | 29 Nov 2017 | 000-31191 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 30 Nov 2017 | 28 Nov 2017 | 000-19311 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 01 Sep 2017 | 31 Aug 2017 | 000-22245 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 31 Aug 2017 | 31 Aug 2017 | 000-31191 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 31 Aug 2017 | 31 Aug 2017 | 001-37859 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 31 Aug 2017 | 31 Aug 2017 | 000-19311 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 09 Jun 2017 | 07 Jun 2017 | 000-19311 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 01 Jun 2017 | 30 May 2017 | 001-37859 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 - | 30 May 2017 | 25 May 2017 | 000-31191 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 26 May 2017 | 24 May 2017 | 001-37859 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 01 May 2017 | 27 Apr 2017 | 000-19311 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 17 Apr 2017 | 17 Apr 2017 | 001-37859 |
| 4/A | Open 4/A document | View SEC filing for 4/A | PRIMARY DOCUMENT | 27 Mar 2017 | 14 Feb 2017 | 001-37859 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 16 Feb 2017 | 14 Feb 2017 | 001-37859 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 16 Feb 2017 | 16 Feb 2017 | 001-36172 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 02 Feb 2017 | 31 Jan 2017 | 001-36172 |
| 3 | Open 3 document | View SEC filing for 3 | PRIMARY DOCUMENT | 19 Jan 2017 | 10 Jan 2017 | 001-37859 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 09 Jun 2016 | 08 Jun 2016 | 000-19311 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 - | 31 May 2016 | 26 May 2016 | 000-31191 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 07 Mar 2016 | 03 Mar 2016 | 000-22245 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 04 Feb 2016 | 02 Feb 2016 | 000-31191 |
| 3 | Open 3 document | View SEC filing for 3 | FORM 3 | 04 Feb 2016 | 02 Feb 2016 | 000-31191 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 03 Feb 2016 | 01 Feb 2016 | 001-36172 |
| 4 | Open 4 document | View SEC filing for 4 | 4 | 14 Jan 2016 | 12 Jan 2016 | 000-22245 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 03 Nov 2015 | 30 Oct 2015 | 001-33389 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 26 Oct 2015 | 22 Oct 2015 | 000-19311 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 11 Jun 2015 | 10 Jun 2015 | 000-19311 |
| 4 | Open 4 document | View SEC filing for 4 | 4 | 29 May 2015 | 27 May 2015 | 001-33389 |
| 3 | Open 3 document | View SEC filing for 3 | FORM 3 | 23 Feb 2015 | 13 Feb 2015 | 000-22245 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 04 Feb 2015 | 31 Jan 2015 | 001-36172 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 19 Aug 2014 | 15 Aug 2014 | 001-36172 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 16 Jun 2014 | 12 Jun 2014 | 000-19311 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 24 Feb 2014 | 20 Feb 2014 | 001-36172 |
| 3 | Open 3 document | View SEC filing for 3 | PRIMARY DOCUMENT | 24 Feb 2014 | 20 Feb 2014 | 001-36172 |
| 4 | Open 4 document | View SEC filing for 4 | 4 | 12 Nov 2013 | 08 Nov 2013 | 001-33389 |
| 4 | Open 4 document | View SEC filing for 4 | 4 | 16 Aug 2013 | 14 Aug 2013 | 001-33389 |
| 4 | Open 4 document | View SEC filing for 4 | 4 | 23 Jul 2013 | 19 Jul 2013 | 001-33389 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 17 Jun 2013 | 14 Jun 2013 | 000-19311 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 13 Jun 2013 | 12 Jun 2013 | 000-19311 |
| 3 | Open 3 document | View SEC filing for 3 | OWNERSHIP DOCUMENT | 03 Jun 2013 | 22 May 2013 | 001-33389 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 31 May 2013 | 29 May 2013 | 000-19311 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 29 May 2013 | 28 May 2013 | 000-19311 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 04 Jan 2013 | 02 Jan 2013 | 000-12957 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 28 Dec 2012 | 26 Dec 2012 | 000-19311 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 10 Aug 2012 | 08 Aug 2012 | 000-19700 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 03 Jul 2012 | 02 Jul 2012 | 000-12957 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 11 Jun 2012 | 08 Jun 2012 | 000-19311 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 17 May 2012 | 15 May 2012 | 000-19700 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 19 Jan 2012 | 17 Jan 2012 | 000-19700 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 05 Jan 2012 | 03 Jan 2012 | 000-12957 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 14 Oct 2011 | 12 Oct 2011 | 000-19700 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 08 Jul 2011 | 06 Jul 2011 | 000-19700 |
| 4 | Open 4 document | View SEC filing for 4 | 06 Jul 2011 | 01 Jul 2011 | 000-12957 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 03 Jun 2011 | 01 Jun 2011 | 000-19311 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 26 May 2011 | 24 May 2011 | 000-19700 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 06 Apr 2011 | 04 Apr 2011 | 000-19700 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 11 Jan 2011 | 05 Jan 2011 | 000-19700 |
| 4 | Open 4 document | View SEC filing for 4 | 05 Jan 2011 | 03 Jan 2011 | 000-12957 | |
| 4 | Open 4 document | View SEC filing for 4 | 06 Jul 2010 | 01 Jul 2010 | 000-12957 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 11 Jun 2010 | 09 Jun 2010 | 000-19311 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 03 May 2010 | 29 Apr 2010 | 000-19700 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 06 Jan 2010 | 04 Jan 2010 | 000-12957 |
About this filer
Alexander J. Denner files with the SEC under CIK 0001361754. This page aggregates EDGAR filings and related ownership activity.
FAQ
- What is a CIK?
- A Central Index Key (CIK) is a unique identifier assigned by the SEC to each filer.
- Why are some filings missing?
- New filings appear as the SEC updates EDGAR, and older records can vary by availability.
- How often is this page updated?
- Updates follow new EDGAR submissions and periodic data refreshes.