Filer Snapshot

Robert E. Gagnon SEC EDGAR Filings

SEC filings, ownership reports, and insider transactions for CIK 0001504983.

Entity Type

Individual

Total Filings

102

Latest Filing

27 Apr 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 27 Apr 2026 for CIK 0001504983.

View Source Filing
Business address
Verastem, Inc., 117 Kendrick Street, Suite 500, Needham, MA, 02494
Top holdings (ownership)
IRD, PPBT, VSTM, BBLG, and HBIO

Quick Takeaways

  • Robert E. Gagnon is an SEC filer tracked under CIK 0001504983.
  • 102 filings are listed on this profile.
  • Common form coverage includes 4, 144, 3 and more.

What Changed

  • Latest filing: 4 filed on 27 Apr 2026.
  • Report period: 23 Apr 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 27 Apr 2026 for CIK 0001504983.

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 Robert E. Gagnon.

Latest source-backed update
4 filed 27 Apr 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 27 Apr 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 Robert E. Gagnon

Ownership report updated

Latest ownership report period: 23 Apr 2026. Open the source-backed page to inspect the fresh filing or facts context.

Update date

27 Apr 2026

Page type

Ownership filings

Latest period

23 Apr 2026

Ownership context was refreshed from SEC Forms 3/4/5 filed on 27 Apr 2026.

Open ownership filings Browse recent public updates

Filer Overview

Robert E. Gagnon has filed 102 SEC EDGAR filings since 10 Nov 2010. Common forms include 4, 144, 3, 3/A.

Reporting owner transactions Latest 13F filings

Latest Filings

Recent SEC filings for Robert E. Gagnon 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 FORM 4 27 Apr 2026 23 Apr 2026 001-34079
144 Open 144 document View SEC filing for 144 23 Apr 2026
3 Open 3 document View SEC filing for 3 OWNERSHIP DOCUMENT 18 Mar 2026 18 Mar 2026 001-37643
4 Open 4 document View SEC filing for 4 26 Jan 2026 22 Jan 2026 001-34079
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 18 Dec 2025 16 Dec 2025 001-35403
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 18 Sep 2025 16 Sep 2025 001-35403
4 Open 4 document View SEC filing for 4 11 Sep 2025 02 Sep 2025 001-34079
3 Open 3 document View SEC filing for 3 11 Sep 2025 02 Sep 2025 001-34079
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 18 Jul 2025 16 Jul 2025 001-33957
3 Open 3 document View SEC filing for 3 OWNERSHIP DOCUMENT 18 Jul 2025 16 Jul 2025 001-33957
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 20 Jun 2025 16 Jun 2025 001-35403
4 Open 4 document View SEC filing for 4 06 Jun 2025 04 Jun 2025 001-40899
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 27 May 2025 22 May 2025 001-35403
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 19 Mar 2025 17 Mar 2025 001-35403
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 20 Dec 2024 16 Dec 2024 001-35403
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 20 Sep 2024 19 Sep 2024 001-35403
4 Open 4 document View SEC filing for 4 19 Sep 2024 17 Sep 2024 001-40899
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 18 Sep 2024 16 Sep 2024 001-35403
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 20 Jun 2024 17 Jun 2024 001-35403
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 20 Mar 2024 18 Mar 2024 001-35403
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 07 Feb 2024 06 Feb 2024 001-35403
144 Open 144 document View SEC filing for 144 06 Feb 2024
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 17 Jan 2024 12 Jan 2024 001-35403
144 Open 144 document View SEC filing for 144 12 Jan 2024
4 Open 4 document View SEC filing for 4 10 Jan 2024 08 Jan 2024 001-40899
3 Open 3 document View SEC filing for 3 10 Jan 2024 08 Jan 2024 001-40899
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 20 Dec 2023 18 Dec 2023 001-35403
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 20 Sep 2023 18 Sep 2023 001-35403
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 21 Jun 2023 16 Jun 2023 001-35403
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 16 May 2023 15 May 2023 001-35403
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 20 Mar 2023 16 Mar 2023 001-35403
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 20 Dec 2022 16 Dec 2022 001-35403
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 15 Dec 2022 13 Dec 2022 001-35403
3 Open 3 document View SEC filing for 3 OWNERSHIP DOCUMENT 15 Dec 2022 13 Dec 2022 001-35403
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 21 Sep 2022 19 Sep 2022 001-35403
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 22 Jun 2022 21 Jun 2022 001-35403
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 17 May 2022 14 May 2022 001-35403
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 23 Mar 2022 21 Mar 2022 001-35403
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 05 Jan 2022 03 Jan 2022 001-35403
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 22 Dec 2021 20 Dec 2021 001-35403
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 17 Dec 2021 12 Aug 2021 001-35403
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 22 Dec 2020 18 Dec 2020 001-35403
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 13 Aug 2020 11 Aug 2020 001-35403
4 Open 4 document View SEC filing for 4 4 30 Mar 2020 27 Mar 2020 001-35403
4 Open 4 document View SEC filing for 4 4 17 Dec 2019 13 Dec 2019 001-35403
4 Open 4 document View SEC filing for 4 4 25 Jun 2019 21 Jun 2019 001-35403
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 07 Jan 2019 03 Jan 2019 001-35403
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 30 Aug 2018 28 Aug 2018 001-35403
3 Open 3 document View SEC filing for 3 PRIMARY DOCUMENT 30 Aug 2018 28 Aug 2018 001-35403
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 30 Aug 2018 29 Aug 2018 001-33957
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 13 Aug 2018 03 Aug 2018 001-33957
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 09 Aug 2018 07 Aug 2018 001-33957
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 31 Jul 2018 27 Jul 2018 001-33957
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 26 Jul 2018 24 Jul 2018 001-33957
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 23 Jul 2018 19 Jul 2018 001-33957
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 16 Jul 2018 12 Jul 2018 001-33957
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 11 Jul 2018 09 Jul 2018 001-33957
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 29 May 2018 24 May 2018 001-33957
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 08 May 2018 06 May 2018 001-33957
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 12 Mar 2018 07 Mar 2018 001-33957
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 04 Jan 2018 01 Jan 2018 001-33957
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 30 May 2017 25 May 2017 001-33957
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 04 Jan 2017 01 Jan 2017 001-33957
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 03 Nov 2016 02 Nov 2016 001-33957
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 10 May 2016 06 May 2016 001-33957
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 05 Jan 2016 01 Jan 2016 001-33957
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 16 Nov 2015 12 Nov 2015 001-33957
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 09 Nov 2015 09 Nov 2015 001-33957
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 05 Aug 2015 03 Aug 2015 001-33957
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 08 Jun 2015 04 Jun 2015 001-33957
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 05 Jan 2015 31 Dec 2014 001-33957
4 Open 4 document View SEC filing for 4 GAGNON FORM 4 02 Jul 2014 30 Jun 2014 001-33957
4 Open 4 document View SEC filing for 4 GAGNON FORM 4 16 Jun 2014 16 Jun 2014 001-33957
4 Open 4 document View SEC filing for 4 GAGNON FORM 4 02 Jun 2014 30 May 2014 001-33957
4 Open 4 document View SEC filing for 4 18 Nov 2013 18 Nov 2013 001-33957
4 Open 4 document View SEC filing for 4 FORM 4 13 Sep 2012 11 Sep 2012 001-34223
3 Open 3 document View SEC filing for 3 FORM 3 22 Aug 2012 20 Aug 2012 001-34223
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 01 Mar 2012 28 Feb 2012 000-19311
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 27 Feb 2012 23 Feb 2012 000-19311
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 16 Feb 2012 14 Feb 2012 000-19311
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 13 Feb 2012 09 Feb 2012 000-19311
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 10 Feb 2012 08 Feb 2012 000-19311
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 08 Dec 2011 06 Dec 2011 000-19311
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 02 Dec 2011 01 Dec 2011 000-19311
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 14 Nov 2011 09 Nov 2011 000-19311
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 04 Nov 2011 02 Nov 2011 000-19311
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 07 Oct 2011 05 Oct 2011 000-19311
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 04 Oct 2011 01 Oct 2011 000-19311
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 09 May 2011 06 May 2011 000-19311
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 04 May 2011 03 May 2011 000-19311
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 03 May 2011 01 May 2011 000-19311
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 03 Mar 2011 02 Mar 2011 000-19311
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 28 Feb 2011 24 Feb 2011 000-19311
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 25 Feb 2011 23 Feb 2011 000-19311
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 18 Feb 2011 17 Feb 2011 000-19311
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 15 Feb 2011 12 Feb 2011 000-19311
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 11 Feb 2011 09 Feb 2011 000-19311
3/A Open 3/A document View SEC filing for 3/A PRIMARY DOCUMENT 07 Jan 2011 03 Nov 2010 000-19311
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 05 Jan 2011 04 Jan 2011 000-19311
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 07 Dec 2010 06 Dec 2010 000-19311
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 03 Dec 2010 01 Dec 2010 000-19311
3 Open 3 document View SEC filing for 3 PRIMARY DOCUMENT 10 Nov 2010 03 Nov 2010 000-19311

About this filer

Robert E. Gagnon files with the SEC under CIK 0001504983. 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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