Filer Snapshot

Susan Mahony SEC EDGAR Filings

SEC filings, ownership reports, and insider transactions for CIK 0001463321.

Entity Type

Individual

Total Filings

67

Latest Filing

12 Jan 2026

Industry

n/a

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Go to latest filings table Open reporting owner context
Source: SEC Forms 3/4/5

4 filed on 12 Jan 2026 for CIK 0001463321.

View Source Filing
Business address
C/O Assembly Biosciences, Inc., Two Tower Place, 7 Th Floor, South San Francisco, CA, 94080
Top holdings (ownership)
AXSM

Quick Takeaways

  • Susan Mahony is an SEC filer tracked under CIK 0001463321.
  • 67 filings are listed on this profile.
  • Common form coverage includes 4, 3, 4/A and more.

What Changed

  • Latest filing: 4 filed on 12 Jan 2026.
  • Report period: 12 Jan 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

4 filed on 12 Jan 2026 for CIK 0001463321.

View Source Filing

Return Loop

Why revisit this filer page

A newly filed 4 can change the filing history, ownership context, or next research path for Susan Mahony.

Latest source-backed update
4 filed 12 Jan 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 12 Jan 2026.
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Filer freshness comes from SEC EDGAR submission history and related source-backed ownership or portfolio filings when available.

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Latest update

What changed recently for Susan Mahony

Ownership report updated

Latest ownership report period: 12 Jan 2026. Open the source-backed page to inspect the fresh filing or facts context.

Update date

12 Jan 2026

Page type

Ownership filings

Latest period

12 Jan 2026

Ownership context was refreshed from SEC Forms 3/4/5 filed on 12 Jan 2026.

Open ownership filings Browse recent public updates

Filer Overview

Susan Mahony has filed 67 SEC EDGAR filings since 06 May 2009. Common forms include 4, 3, 4/A, 5 and more.

Reporting owner transactions Latest 13F filings

Latest Filings

Recent SEC filings for Susan Mahony 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 12 Jan 2026 12 Jan 2026 001-41535
4 Open 4 document View SEC filing for 4 4 10 Jun 2025 06 Jun 2025 001-37635
4 Open 4 document View SEC filing for 4 4 09 Jun 2025 05 Jun 2025 001-35005
4 Open 4 document View SEC filing for 4 4 25 Feb 2025 21 Feb 2025 001-37635
4 Open 4 document View SEC filing for 4 4 12 Dec 2024 10 Dec 2024 001-41535
4 Open 4 document View SEC filing for 4 4 11 Jun 2024 07 Jun 2024 001-37635
4 Open 4 document View SEC filing for 4 4 30 May 2024 29 May 2024 001-35005
4 Open 4 document View SEC filing for 4 4 29 Feb 2024 27 Feb 2024 001-37635
4 Open 4 document View SEC filing for 4 4 08 Dec 2023 07 Dec 2023 001-41535
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 12 Oct 2023 10 Oct 2023 001-37635
3 Open 3 document View SEC filing for 3 FORM 3 SUBMISSION 12 Oct 2023 10 Oct 2023 001-37635
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 06 Oct 2023 06 Oct 2023 001-35238
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 28 Jul 2023 27 Jul 2023 001-35238
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 30 May 2023 25 May 2023 001-35005
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 02 May 2023 28 Apr 2023 001-35238
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 23 Dec 2022 21 Dec 2022 001-41535
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 27 May 2022 25 May 2022 001-35005
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 02 May 2022 28 Apr 2022 001-35238
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 24 May 2021 20 May 2021 001-35005
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 07 May 2021 06 May 2021 001-38068
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 30 Apr 2021 29 Apr 2021 001-35238
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 15 Jun 2020 11 Jun 2020 001-35005
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 12 May 2020 08 May 2020 001-38068
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 04 May 2020 30 Apr 2020 001-35238
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 05 Aug 2019 01 Aug 2019 001-35238
3 Open 3 document View SEC filing for 3 FORM 3 SUBMISSION 05 Aug 2019 01 Aug 2019 001-35238
3 Open 3 document View SEC filing for 3 FORM 3 SUBMISSION 11 Jun 2019 03 Jun 2019 001-38068
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 17 May 2019 17 May 2019 001-35005
4/A Open 4/A document View SEC filing for 4/A FORM 4/A 01 Feb 2019 13 Apr 2018 001-06351
4 Open 4 document View SEC filing for 4 FORM 4 01 Jun 2018 30 May 2018 001-35005
4 Open 4 document View SEC filing for 4 FORM 4 17 Apr 2018 13 Apr 2018 001-06351
4/A Open 4/A document View SEC filing for 4/A FORM 4/A 05 Feb 2018 29 Jan 2018 001-06351
4 Open 4 document View SEC filing for 4 FORM 4 05 Feb 2018 01 Feb 2018 001-06351
4 Open 4 document View SEC filing for 4 FORM 4 31 Jan 2018 29 Jan 2018 001-06351
4 Open 4 document View SEC filing for 4 FORM 4 18 Dec 2017 14 Dec 2017 001-35005
3 Open 3 document View SEC filing for 3 FORM 3 18 Dec 2017 14 Dec 2017 001-35005
4 Open 4 document View SEC filing for 4 FORM 4 05 Dec 2017 04 Dec 2017 001-06351
4 Open 4 document View SEC filing for 4 FORM 4 03 Feb 2017 01 Feb 2017 001-06351
4 Open 4 document View SEC filing for 4 FORM 4 31 Jan 2017 27 Jan 2017 001-06351
4 Open 4 document View SEC filing for 4 FORM 4 19 Dec 2016 16 Dec 2016 001-06351
4 Open 4 document View SEC filing for 4 FORM 4 05 Dec 2016 01 Dec 2016 001-06351
4 Open 4 document View SEC filing for 4 FORM 4 03 Feb 2016 01 Feb 2016 001-06351
4 Open 4 document View SEC filing for 4 FORM 4 28 Jan 2016 26 Jan 2016 001-06351
5 Open 5 document View SEC filing for 5 FORM 5 25 Jan 2016 31 Dec 2015 001-06351
4 Open 4 document View SEC filing for 4 FORM 4 29 Jul 2015 28 Jul 2015 001-06351
4 Open 4 document View SEC filing for 4 FORM 4 12 Feb 2015 11 Feb 2015 001-06351
5 Open 5 document View SEC filing for 5 FORM 5 04 Feb 2015 31 Dec 2014 001-06351
4 Open 4 document View SEC filing for 4 FORM 4 03 Feb 2015 01 Feb 2015 001-06351
4 Open 4 document View SEC filing for 4 FORM 4 30 Jan 2015 28 Jan 2015 001-06351
4 Open 4 document View SEC filing for 4 FORM 4 15 Aug 2014 13 Aug 2014 001-06351
4 Open 4 document View SEC filing for 4 FORM 4 30 Jul 2014 28 Jul 2014 001-06351
4 Open 4 document View SEC filing for 4 FORM 4 28 Jul 2014 25 Jul 2014 001-06351
4 Open 4 document View SEC filing for 4 FORM 4 04 Feb 2014 01 Feb 2014 001-06351
4 Open 4 document View SEC filing for 4 FORM 4 30 Jan 2014 28 Jan 2014 001-06351
4 Open 4 document View SEC filing for 4 FORM 4 05 Nov 2013 04 Nov 2013 001-06351
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 29 Apr 2013 29 Apr 2013 001-06351
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 26 Mar 2013 26 Mar 2013 001-06351
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 05 Mar 2013 01 Dec 2009 001-06351
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 04 Feb 2013 01 Feb 2013 001-06351
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 29 Jan 2013 25 Jan 2013 001-06351
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 07 Nov 2012 24 Oct 2012 001-06351
4/A Open 4/A document View SEC filing for 4/A FORM 4/A SUBMISSION 02 Feb 2012 26 Jan 2012 001-06351
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 30 Jan 2012 26 Jan 2012 001-06351
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 27 Jan 2011 25 Jan 2011 001-06351
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 28 Jan 2010 26 Jan 2010 001-06351

About this filer

Susan Mahony files with the SEC under CIK 0001463321. 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.
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