Filer Snapshot

Fox Jonathan C. SEC EDGAR Filings

SEC filings, ownership reports, and insider transactions for CIK 0001655016.

Entity Type

Individual

Total Filings

41

Latest Filing

03 Apr 2026

Industry

n/a

Save this filer page for the next filing cycle

Keep this page in your research queue, then return to compare new filings with prior context.

Save and revisit

Save this filer page

Create a free account to keep this page in your watchlists and return after a new SEC filing changes the record here.

Create free account to save and revisit this page

Best next steps

Start with the latest filings table, then open the strongest context page for this filer.

  • Use the filings table to verify the newest submission, form type, and report period.
  • Open the deeper context page only when this filer actually has insider or ownership signal.
Go to latest filings table Open reporting owner context
Source: SEC Forms 3/4/5

4 filed on 03 Apr 2026 for CIK 0001655016.

View Source Filing
Business address
C/O Myokardia, Inc., 333 Allerton Avenue, South San Francisco, CA, 94080
Top holdings (ownership)
EWTX

Quick Takeaways

  • Fox Jonathan C. is an SEC filer tracked under CIK 0001655016.
  • 41 filings are listed on this profile.
  • Common form coverage includes 4, 3.

What Changed

  • Latest filing: 4 filed on 03 Apr 2026.
  • Report period: 01 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 03 Apr 2026 for CIK 0001655016.

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 Fox Jonathan C..

Latest source-backed update
4 filed 03 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 03 Apr 2026.
  • Save this filer if you want a stable place to return after the next filing cycle.
  • 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.

Jump to save and follow actions Open latest filings table

Latest update

What changed recently for Fox Jonathan C.

Ownership report updated

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

Update date

03 Apr 2026

Page type

Ownership filings

Latest period

01 Apr 2026

Ownership context was refreshed from SEC Forms 3/4/5 filed on 03 Apr 2026.

Open ownership filings Browse recent public updates

Filer Overview

Fox Jonathan C. has filed 41 SEC EDGAR filings since 28 Oct 2015. Common forms include 4, 3.

Reporting owner transactions Latest 13F filings

Latest Filings

Recent SEC filings for Fox Jonathan C. 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 PRIMARY DOCUMENT 03 Apr 2026 01 Apr 2026 001-40236
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 05 Jan 2026 02 Jan 2026 001-40236
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 13 Nov 2025 11 Nov 2025 001-40236
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 02 Oct 2025 01 Oct 2025 001-40236
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 02 Jul 2025 01 Jul 2025 001-40236
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 18 Jun 2025 16 Jun 2025 001-40236
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 03 Apr 2025 01 Apr 2025 001-40236
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 12 Jun 2024 10 Jun 2024 001-40236
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 28 Dec 2023 26 Dec 2023 001-40236
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 14 Jun 2023 12 Jun 2023 001-40236
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 07 Mar 2023 03 Mar 2023 001-40236
3 Open 3 document View SEC filing for 3 PRIMARY DOCUMENT 07 Mar 2023 02 Mar 2023 001-40236
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 28 Jan 2021 26 Jan 2021 001-38533
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 18 Sep 2020 17 Sep 2020 001-38533
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 16 Sep 2020 14 Sep 2020 001-38533
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 09 Jul 2020 07 Jul 2020 001-38533
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 01 Jul 2020 29 Jun 2020 001-38533
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 05 Jun 2020 03 Jun 2020 001-38533
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 01 Jun 2020 28 May 2020 001-38533
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 27 Apr 2020 23 Apr 2020 001-38533
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 04 Mar 2020 02 Mar 2020 001-38533
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 19 Feb 2020 13 Feb 2020 001-38533
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 16 Jan 2020 14 Jan 2020 001-38533
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 09 Jan 2020 26 Dec 2019 001-38533
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 05 Dec 2019 04 Dec 2019 001-38533
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 27 Nov 2019 25 Nov 2019 001-38533
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 22 Nov 2019 21 Nov 2019 001-38533
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 19 Nov 2019 15 Nov 2019 001-38533
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 16 Oct 2019 15 Oct 2019 001-38533
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 18 Sep 2019 16 Sep 2019 001-38533
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 19 Aug 2019 15 Aug 2019 001-38533
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 17 Jul 2019 15 Jul 2019 001-38533
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 31 May 2019 30 May 2019 001-38533
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 06 May 2019 03 May 2019 001-38533
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 03 May 2019 01 May 2019 001-38533
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 16 Apr 2019 15 Apr 2019 001-38533
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 07 Nov 2018 05 Nov 2018 001-38533
3 Open 3 document View SEC filing for 3 FORM 3 SUBMISSION 19 Jun 2018 19 Jun 2018 001-38533
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 06 May 2016 29 Apr 2016 001-37609
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 05 Nov 2015 03 Nov 2015 001-37609
3 Open 3 document View SEC filing for 3 FORM 3 SUBMISSION 28 Oct 2015 28 Oct 2015 001-37609

About this filer

Fox Jonathan C. files with the SEC under CIK 0001655016. 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.