Filer Snapshot

Steven M. Altschuler SEC EDGAR Filings

SEC filings, ownership reports, and insider transactions for CIK 0001458116.

Entity Type

Individual

Total Filings

98

Latest Filing

30 Oct 2025

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 30 Oct 2025 for CIK 0001458116.

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Business address
Lexeo Therapeutics, Inc., 345 Park Avenue South, Floor 6, New York, NY, 10010
Top holdings (ownership)
WW

Quick Takeaways

  • Steven M. Altschuler is an SEC filer tracked under CIK 0001458116.
  • 98 filings are listed on this profile.
  • Common form coverage includes 4, 3.

What Changed

  • Latest filing: 4 filed on 30 Oct 2025.
  • Report period: 30 Oct 2025.

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 30 Oct 2025 for CIK 0001458116.

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 Steven M. Altschuler.

Latest source-backed update
4 filed 30 Oct 2025
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Revisit after a new SEC filing appears to compare the updated record with prior filings.
  • Latest filing on record: 4 filed 30 Oct 2025.
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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 Steven M. Altschuler

Ownership report updated

Latest ownership report period: 30 Oct 2025. Open the source-backed page to inspect the fresh filing or facts context.

Update date

30 Oct 2025

Page type

Ownership filings

Latest period

30 Oct 2025

Ownership context was refreshed from SEC Forms 3/4/5 filed on 30 Oct 2025.

Open ownership filings Browse recent public updates

Filer Overview

Steven M. Altschuler has filed 98 SEC EDGAR filings since 12 Mar 2009. Common forms include 4, 3.

Reporting owner transactions Latest 13F filings

Latest Filings

Recent SEC filings for Steven M. Altschuler 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 30 Oct 2025 30 Oct 2025 001-39122
4 Open 4 document View SEC filing for 4 30 Jun 2025 26 Jun 2025 001-41855
4 Open 4 document View SEC filing for 4 4 26 Jun 2025 24 Jun 2025 001-16769
4 Open 4 document View SEC filing for 4 4 05 Feb 2025 03 Feb 2025 001-39122
4 Open 4 document View SEC filing for 4 4 02 Jan 2025 30 Dec 2024 001-16769
4 Open 4 document View SEC filing for 4 4 02 Oct 2024 30 Sep 2024 001-16769
4 Open 4 document View SEC filing for 4 4 03 Jul 2024 01 Jul 2024 001-16769
4 Open 4 document View SEC filing for 4 27 Jun 2024 25 Jun 2024 001-41855
4 Open 4 document View SEC filing for 4 4 03 Apr 2024 01 Apr 2024 001-16769
4 Open 4 document View SEC filing for 4 4 05 Feb 2024 01 Feb 2024 001-39122
4 Open 4 document View SEC filing for 4 4 24 Jan 2024 24 Jan 2024 001-38722
4 Open 4 document View SEC filing for 4 4 03 Jan 2024 01 Jan 2024 001-16769
3 Open 3 document View SEC filing for 3 FORM 3 SUBMISSION 02 Nov 2023 02 Nov 2023 001-41855
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 04 Oct 2023 02 Oct 2023 001-16769
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 05 Jul 2023 03 Jul 2023 001-16769
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 16 Jun 2023 14 Jun 2023 001-38722
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 05 Apr 2023 03 Apr 2023 001-16769
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 13 Feb 2023 09 Feb 2023 001-39122
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 04 Jan 2023 02 Jan 2023 001-16769
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 05 Oct 2022 03 Oct 2022 001-16769
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 06 Jul 2022 04 Jul 2022 001-16769
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 08 Jun 2022 07 Jun 2022 001-38722
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 18 May 2022 16 May 2022 001-39122
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 06 Apr 2022 04 Apr 2022 001-16769
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 05 Jan 2022 03 Jan 2022 001-16769
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 06 Oct 2021 04 Oct 2021 001-16769
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 07 Jul 2021 05 Jul 2021 001-16769
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 17 Jun 2021 16 Jun 2021 001-38722
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 19 Apr 2021 15 Apr 2021 001-39122
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 07 Apr 2021 05 Apr 2021 001-16769
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 14 Jul 2020 22 Jun 2020 001-39122
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 01 Jul 2020 29 Jun 2020 001-16769
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 19 Jun 2020 17 Jun 2020 001-38722
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 01 Apr 2020 30 Mar 2020 001-16769
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 25 Mar 2020 23 Mar 2020 001-39122
3 Open 3 document View SEC filing for 3 FORM 3 SUBMISSION 25 Mar 2020 23 Mar 2020 001-39122
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 03 Feb 2020 03 Feb 2020 001-38722
3 Open 3 document View SEC filing for 3 FORM 3 SUBMISSION 03 Feb 2020 03 Feb 2020 001-38722
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 02 Jan 2020 30 Dec 2019 001-16769
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 17 Dec 2019 17 Dec 2019 001-36819
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 07 Nov 2019 06 Nov 2019 001-13988
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 02 Oct 2019 30 Sep 2019 001-16769
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 02 Jul 2019 01 Jul 2019 001-16769
4 Open 4 document View SEC filing for 4 FORM 4 03 Jun 2019 30 May 2019 001-36819
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 03 Apr 2019 01 Apr 2019 001-16769
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 04 Jan 2019 02 Jan 2019 001-16769
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 08 Nov 2018 06 Nov 2018 001-13988
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 03 Oct 2018 01 Oct 2018 001-16769
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 05 Jul 2018 02 Jul 2018 001-16769
4 Open 4 document View SEC filing for 4 FORM 4 31 May 2018 30 May 2018 001-36819
3 Open 3 document View SEC filing for 3 PRIMARY DOCUMENT 14 May 2018 08 May 2018 001-13988
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 04 Apr 2018 02 Apr 2018 001-16769
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 04 Jan 2018 02 Jan 2018 001-16769
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 04 Oct 2017 02 Oct 2017 001-16769
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 06 Jul 2017 03 Jul 2017 001-16769
4 Open 4 document View SEC filing for 4 4 15 Jun 2017 15 Jun 2017 001-34251
4 Open 4 document View SEC filing for 4 FORM 4 02 Jun 2017 31 May 2017 001-36819
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 05 Apr 2017 03 Apr 2017 001-16769
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 02 Mar 2017 28 Feb 2017 001-34251
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 05 Jan 2017 03 Jan 2017 001-16769
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 19 Dec 2016 15 Dec 2016 001-16769
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 05 Oct 2016 03 Oct 2016 001-16769
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 07 Jul 2016 05 Jul 2016 001-16769
4 Open 4 document View SEC filing for 4 FORM 4 03 Jun 2016 01 Jun 2016 001-36819
4 Open 4 document View SEC filing for 4 FORM 4 29 Apr 2016 27 Apr 2016 001-36819
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 06 Apr 2016 04 Apr 2016 001-16769
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 01 Mar 2016 26 Feb 2016 001-34251
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 06 Jan 2016 04 Jan 2016 001-16769
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 17 Dec 2015 15 Dec 2015 001-16769
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 09 Oct 2015 07 Oct 2015 001-36819
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 07 Oct 2015 05 Oct 2015 001-16769
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 08 Jul 2015 06 Jul 2015 001-16769
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 08 Apr 2015 06 Apr 2015 001-16769
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 03 Mar 2015 28 Feb 2015 001-34251
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 27 Feb 2015 26 Feb 2015 001-34251
3 Open 3 document View SEC filing for 3 PRIMARY DOCUMENT 29 Jan 2015 29 Jan 2015 001-36819
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 07 Jan 2015 05 Jan 2015 001-16769
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 17 Dec 2014 15 Dec 2014 001-16769
4 Open 4 document View SEC filing for 4 2014-09-29 ALTSCHULER FORM 4 01 Oct 2014 29 Sep 2014 001-16769
4 Open 4 document View SEC filing for 4 2014-06-30 ALTSCHULER FORM 4 02 Jul 2014 30 Jun 2014 001-16769
4 Open 4 document View SEC filing for 4 2014-03-31 ALTSCHULER FORM 4 02 Apr 2014 31 Mar 2014 001-16769
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 03 Mar 2014 27 Feb 2014 001-34251
4 Open 4 document View SEC filing for 4 2013-12-30 ALTSCHULER FORM 4 02 Jan 2014 30 Dec 2013 001-16769
4 Open 4 document View SEC filing for 4 2013-12-15 ALTSCHULER FORM 4 17 Dec 2013 15 Dec 2013 001-16769
4 Open 4 document View SEC filing for 4 2013-9-30 ALTSCHULER FORM 4 02 Oct 2013 30 Sep 2013 001-16769
4 Open 4 document View SEC filing for 4 2013-07-01 ALTSCHULER FORM 4 03 Jul 2013 01 Jul 2013 001-16769
4 Open 4 document View SEC filing for 4 2013-04-01 ALTSCHULER FORM 4 03 Apr 2013 01 Apr 2013 001-16769
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 04 Mar 2013 27 Feb 2013 001-34251
4 Open 4 document View SEC filing for 4 2014-01-02 ALTSCHULER FORM 4 04 Jan 2013 02 Jan 2013 001-16769
4 Open 4 document View SEC filing for 4 2012-12-15 ALTSCHULER FORM 4 18 Dec 2012 15 Dec 2012 001-16769
3 Open 3 document View SEC filing for 3 2012-09-30 ALTSCHULER FORM 3 01 Oct 2012 30 Sep 2012 001-16769
4 Open 4 document View SEC filing for 4 06 Mar 2012 02 Mar 2012 001-34251
4 Open 4 document View SEC filing for 4 04 Mar 2011 02 Mar 2011 001-34251
4 Open 4 document View SEC filing for 4 28 Feb 2011 24 Feb 2011 001-34251
4 Open 4 document View SEC filing for 4 16 Feb 2011 10 Mar 2010 001-34251
4 Open 4 document View SEC filing for 4 25 Feb 2010 24 Feb 2010 001-34251

About this filer

Steven M. Altschuler files with the SEC under CIK 0001458116. 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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