Filer Snapshot

Catherine A. Sohn SEC EDGAR Filings

SEC filings, ownership reports, and insider transactions for CIK 0001555132.

Entity Type

Individual

Total Filings

73

Latest Filing

01 May 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 01 May 2026 for CIK 0001555132.

View Source Filing
Business address
Altimmune, Inc., 910 Clopper Road, Suite 201 S, Gaithersburg, MD, 20878
Top holdings (ownership)
JAZZ, LFCR, and ALT

Quick Takeaways

  • Catherine A. Sohn is an SEC filer tracked under CIK 0001555132.
  • 73 filings are listed on this profile.
  • Common form coverage includes 4, 144, 3 and more.

What Changed

  • Latest filing: 4 filed on 01 May 2026.
  • Report period: 01 May 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 01 May 2026 for CIK 0001555132.

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 Catherine A. Sohn.

Latest source-backed update
4 filed 01 May 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 01 May 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 Catherine A. Sohn

Ownership report updated

Latest ownership report period: 01 May 2026. Open the source-backed page to inspect the fresh filing or facts context.

Update date

01 May 2026

Page type

Ownership filings

Latest period

01 May 2026

Ownership context was refreshed from SEC Forms 3/4/5 filed on 01 May 2026.

Open ownership filings Browse recent public updates

Filer Overview

Catherine A. Sohn has filed 73 SEC EDGAR filings since 02 Aug 2012. Common forms include 4, 144, 3, 4/A.

Reporting owner transactions Latest 13F filings

Latest Filings

Recent SEC filings for Catherine A. Sohn 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 01 May 2026 01 May 2026 001-32587
4 Open 4 document View SEC filing for 4 08 Jan 2026 06 Jan 2026 001-42490
144 Open 144 document View SEC filing for 144 07 Jan 2026
144 Open 144 document View SEC filing for 144 06 Jan 2026
4 Open 4 document View SEC filing for 4 05 Jan 2026 05 Jan 2026 001-32587
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 29 Sep 2025 25 Sep 2025 001-32587
4 Open 4 document View SEC filing for 4 24 Sep 2025 22 Sep 2025 001-42490
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 18 Mar 2025 17 Mar 2025 001-32587
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 07 Feb 2025 06 Feb 2025 001-32587
3 Open 3 document View SEC filing for 3 30 Jan 2025 30 Jan 2025 001-42490
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 30 Sep 2024 26 Sep 2024 001-32587
144 Open 144 document View SEC filing for 144 02 Aug 2024
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 29 Sep 2023 28 Sep 2023 001-32587
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 15 Aug 2023 11 Aug 2023 001-33500
144 Open 144 document View SEC filing for 144 14 Aug 2023
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 27 Mar 2023 23 Mar 2023 001-32587
3 Open 3 document View SEC filing for 3 OWNERSHIP DOCUMENT 27 Mar 2023 23 Mar 2023 001-32587
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 09 Aug 2022 05 Aug 2022 001-33500
4 Open 4 document View SEC filing for 4 FORM 4 07 Jun 2022 04 Jun 2022 000-27446
4 Open 4 document View SEC filing for 4 FORM 4 02 Jun 2022 31 May 2022 000-27446
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 23 May 2022 19 May 2022 001-38901
4 Open 4 document View SEC filing for 4 FORM 4 - 13 May 2022 12 May 2022 001-38586
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 10 Aug 2021 06 Aug 2021 001-33500
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 02 Aug 2021 29 Jul 2021 001-33500
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 08 Jun 2021 04 Jun 2021 000-27446
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 03 Jun 2021 01 Jun 2021 000-27446
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 24 May 2021 20 May 2021 001-38901
4 Open 4 document View SEC filing for 4 FORM 4 - 13 May 2021 12 May 2021 001-38586
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 06 Nov 2020 04 Nov 2020 001-33500
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 19 Oct 2020 15 Oct 2020 000-27446
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 10 Aug 2020 06 Aug 2020 001-33500
4 Open 4 document View SEC filing for 4 FORM 4 02 Jun 2020 01 Jun 2020 000-27446
4 Open 4 document View SEC filing for 4 FORM 4 29 May 2020 28 May 2020 000-27446
4 Open 4 document View SEC filing for 4 FORM 4 - 26 May 2020 21 May 2020 001-38586
4 Open 4 document View SEC filing for 4 4 22 May 2020 20 May 2020 001-38901
4 Open 4 document View SEC filing for 4 FORM 4 21 Jan 2020 17 Jan 2020 001-38901
4 Open 4 document View SEC filing for 4 FORM 4 17 Oct 2019 15 Oct 2019 000-27446
4 Open 4 document View SEC filing for 4 FORM 4 07 Oct 2019 04 Oct 2019 000-27446
4 Open 4 document View SEC filing for 4 4 23 Aug 2019 21 Aug 2019 001-38901
3 Open 3 document View SEC filing for 3 3 23 Aug 2019 21 Aug 2019 001-38901
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 12 Aug 2019 08 Aug 2019 001-33500
4 Open 4 document View SEC filing for 4 FORM 4 30 May 2019 28 May 2019 000-27446
4 Open 4 document View SEC filing for 4 4 28 May 2019 23 May 2019 001-38586
4 Open 4 document View SEC filing for 4 FORM 4 11 Jan 2019 10 Jan 2019 000-27446
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 13 Aug 2018 09 Aug 2018 001-33500
4 Open 4 document View SEC filing for 4 4 23 Jul 2018 20 Jul 2018 001-38586
4 Open 4 document View SEC filing for 4 4 18 Jul 2018 17 Jul 2018 001-38586
3 Open 3 document View SEC filing for 3 3 17 Jul 2018 17 Jul 2018 001-38586
4 Open 4 document View SEC filing for 4 FORM 4 01 Jun 2018 30 May 2018 000-27446
4 Open 4 document View SEC filing for 4 FORM 4 25 May 2018 23 May 2018 000-27446
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 14 Aug 2017 10 Aug 2017 001-33500
4 Open 4 document View SEC filing for 4 FORM 4 05 Jun 2017 01 Jun 2017 000-27446
4 Open 4 document View SEC filing for 4 FORM 4 26 May 2017 25 May 2017 000-27446
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 17 Aug 2016 15 Aug 2016 001-33500
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 15 Aug 2016 11 Aug 2016 001-33500
4/A Open 4/A document View SEC filing for 4/A FORM 4/A 01 Jun 2016 26 May 2016 000-27446
4 Open 4 document View SEC filing for 4 FORM 4 31 May 2016 26 May 2016 000-27446
4 Open 4 document View SEC filing for 4 FORM 4 23 Nov 2015 23 Nov 2015 000-27446
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 11 Aug 2015 07 Aug 2015 001-33500
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 06 Jul 2015 01 Jul 2015 001-33672
4 Open 4 document View SEC filing for 4 FORM 4 29 May 2015 28 May 2015 000-27446
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 14 Aug 2014 12 Aug 2014 001-33500
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 11 Aug 2014 07 Aug 2014 001-33500
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 07 Aug 2014 01 Aug 2014 001-33672
3 Open 3 document View SEC filing for 3 OWNERSHIP DOCUMENT 31 Jul 2014 13 Jan 2014 001-33672
4 Open 4 document View SEC filing for 4 FORM 4 10 Jun 2014 06 Jun 2014 000-27446
4 Open 4 document View SEC filing for 4 FORM 4 02 Jun 2014 29 May 2014 000-27446
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 14 Aug 2013 14 Aug 2013 001-33500
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 12 Aug 2013 08 Aug 2013 001-33500
4 Open 4 document View SEC filing for 4 FORM 4 10 Jun 2013 07 Jun 2013 000-27446
3 Open 3 document View SEC filing for 3 FORM 3 20 Nov 2012 13 Nov 2012 000-27446
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 13 Aug 2012 09 Aug 2012 001-33500
3 Open 3 document View SEC filing for 3 PRIMARY DOCUMENT 02 Aug 2012 27 Jul 2012 001-33500

About this filer

Catherine A. Sohn files with the SEC under CIK 0001555132. 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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