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.

Filer Snapshot

Michael R. Hayden SEC EDGAR Filings

SEC filings, ownership reports, and insider transactions for CIK 0001352908.

Entity Type

Individual

Total Filings

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 0001352908.

View Source Filing

Business address: C/O Aspreva Pharmaceuticals Corporation, 1203 4464 Markham Street, Victoria, British Columbia, Canada, V8Z 7X8
Top holdings (ownership): XENE and IONS

Quick Takeaways

Michael R. Hayden is an SEC filer tracked under CIK 0001352908.
67 filings are listed on this profile.
Common form coverage includes 4, 5, 3 and more.

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 0001352908.

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 Michael R. Hayden.

Latest source-backed update: 4 filed 30 Oct 2025
Why come back: Revisit after a new SEC filing appears to compare the updated record with prior filings.

Latest filing on record: 4 filed 30 Oct 2025.
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 Michael R. Hayden

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

Michael R. Hayden has filed 67 SEC EDGAR filings since 14 Feb 2006. Common forms include 4, 5, 3, SC 13G/A and more.

Reporting owner transactions Latest 13F filings

Latest Filings

Recent SEC filings for Michael R. Hayden with direct links to document and filing folders.

4 File 001-39122

4

Filing date: 30 Oct 2025
Reporting date: 30 Oct 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-19125

PRIMARY DOCUMENT

Filing date: 17 Jul 2025
Reporting date: 15 Jul 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-19125

PRIMARY DOCUMENT

Filing date: 02 Jul 2025
Reporting date: 01 Jul 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-39781

FORM 4

Filing date: 01 Jul 2025
Reporting date: 12 Jun 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-19125

PRIMARY DOCUMENT

Filing date: 02 May 2025
Reporting date: 01 May 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-39122

4

Filing date: 05 Feb 2025
Reporting date: 03 Feb 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-19125

PRIMARY DOCUMENT

Filing date: 26 Dec 2024
Reporting date: 23 Dec 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-19125

PRIMARY DOCUMENT

Filing date: 03 Jul 2024
Reporting date: 01 Jul 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-39781

FORM 4

Filing date: 24 Jun 2024
Reporting date: 21 Jun 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-39122

4

Filing date: 05 Feb 2024
Reporting date: 01 Feb 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-39781

FORM 4

Filing date: 26 Sep 2023
Reporting date: 22 Sep 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-39781

FORM 4

Filing date: 09 Aug 2023
Reporting date: 08 Aug 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-19125

PRIMARY DOCUMENT

Filing date: 19 Jul 2023
Reporting date: 17 Jul 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-19125

PRIMARY DOCUMENT

Filing date: 06 Jul 2023
Reporting date: 03 Jul 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-39122

4

Filing date: 30 Mar 2023
Reporting date: 30 Mar 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

5 File 000-19125

PRIMARY DOCUMENT

Filing date: 14 Feb 2023
Reporting date: 31 Dec 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-39122

FORM 4 SUBMISSION

Filing date: 13 Feb 2023
Reporting date: 09 Feb 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-39781

FORM 4 SUBMISSION

Filing date: 05 Dec 2022
Reporting date: 01 Dec 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-19125

PRIMARY DOCUMENT

Filing date: 18 Oct 2022
Reporting date: 17 Oct 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-19125

PRIMARY DOCUMENT

Filing date: 19 Jul 2022
Reporting date: 15 Jul 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-19125

PRIMARY DOCUMENT

Filing date: 06 Jul 2022
Reporting date: 01 Jul 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-39122

FORM 4 SUBMISSION

Filing date: 18 May 2022
Reporting date: 16 May 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-39781

FORM 4 SUBMISSION

Filing date: 10 Dec 2021
Reporting date: 07 Dec 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-19125

PRIMARY DOCUMENT

Filing date: 19 Oct 2021
Reporting date: 15 Oct 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-39781

FORM 4 SUBMISSION

Filing date: 15 Sep 2021
Reporting date: 13 Sep 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-19125

PRIMARY DOCUMENT

Filing date: 19 Jul 2021
Reporting date: 15 Jul 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-19125

PRIMARY DOCUMENT

Filing date: 06 Jul 2021
Reporting date: 01 Jul 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-39781

FORM 4 SUBMISSION

Filing date: 22 Jun 2021
Reporting date: 22 Jun 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-36687

FORM 4 SUBMISSION

Filing date: 03 Jun 2021
Reporting date: 03 Jun 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-36687

FORM 4 SUBMISSION

Filing date: 20 May 2021
Reporting date: 18 May 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-39122

FORM 4 SUBMISSION

Filing date: 19 Apr 2021
Reporting date: 15 Apr 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-39122

FORM 4 SUBMISSION

Filing date: 25 Feb 2021
Reporting date: 23 Feb 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-36687

FORM 4 SUBMISSION

Filing date: 18 Feb 2021
Reporting date: 16 Feb 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-36421

FORM 4

Filing date: 02 Feb 2021
Reporting date: 29 Jan 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

3 File 001-36421

FORM 3 SUBMISSION

Filing date: 04 Jan 2021
Reporting date: 01 Jan 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-39781

FORM 4 SUBMISSION

Filing date: 17 Dec 2020
Reporting date: 15 Dec 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

3 File 001-39781

FORM 3 SUBMISSION

Filing date: 11 Dec 2020
Reporting date: 11 Dec 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-19125

PRIMARY DOCUMENT

Filing date: 19 Oct 2020
Reporting date: 15 Oct 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-39122

FORM 4 SUBMISSION

Filing date: 14 Jul 2020
Reporting date: 22 Jun 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-19125

PRIMARY DOCUMENT

Filing date: 06 Jul 2020
Reporting date: 01 Jul 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-36687

FORM 4 SUBMISSION

Filing date: 02 Jun 2020
Reporting date: 01 Jun 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-39122

FORM 4 SUBMISSION

Filing date: 07 Apr 2020
Reporting date: 05 Apr 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-39122

FORM 4 SUBMISSION

Filing date: 13 Nov 2019
Reporting date: 11 Nov 2019
SEC evidence: Open document Open filing
Next action: Verify source filing

3 File 001-39122

FORM 3 SUBMISSION

Filing date: 08 Nov 2019
Reporting date: 08 Nov 2019
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-19125

PRIMARY DOCUMENT

Filing date: 17 Oct 2019
Reporting date: 15 Oct 2019
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-36687

FORM 4 SUBMISSION

Filing date: 18 Sep 2019
Reporting date: 16 Sep 2019
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-19125

PRIMARY DOCUMENT

Filing date: 03 Jul 2019
Reporting date: 01 Jul 2019
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-36687

FORM 4 SUBMISSION

Filing date: 20 Mar 2019
Reporting date: 19 Mar 2019
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-36687

FORM 4 SUBMISSION

Filing date: 12 Mar 2019
Reporting date: 11 Mar 2019
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-19125

PRIMARY DOCUMENT

Filing date: 15 Oct 2018
Reporting date: 15 Oct 2018
SEC evidence: Open document Open filing
Next action: Verify source filing

3 File 000-19125

PRIMARY DOCUMENT

Filing date: 25 Sep 2018
Reporting date: 20 Sep 2018
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-19125

PRIMARY DOCUMENT

Filing date: 24 Sep 2018
Reporting date: 20 Sep 2018
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-36687

OWNERSHIP DOCUMENT

Filing date: 05 Jun 2018
Reporting date: 04 Jun 2018
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-36687

OWNERSHIP DOCUMENT

Filing date: 01 Mar 2018
Reporting date: 22 Feb 2018
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-36687

OWNERSHIP DOCUMENT

Filing date: 14 Aug 2017
Reporting date: 14 Aug 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-36687

OWNERSHIP DOCUMENT

Filing date: 02 Jun 2017
Reporting date: 01 Jun 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-36687

OWNERSHIP DOCUMENT

Filing date: 15 Mar 2017
Reporting date: 14 Mar 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-36687

OWNERSHIP DOCUMENT

Filing date: 03 Jun 2016
Reporting date: 02 Jun 2016
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-36687

4 filing

Filing date: 27 May 2016
Reporting date: 25 May 2016
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-36687

4 filing

Filing date: 06 May 2015
Reporting date: 04 May 2015
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-36687

OWNERSHIP DOCUMENT

Filing date: 05 Feb 2015
Reporting date: 03 Feb 2015
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-36687

OWNERSHIP DOCUMENT

Filing date: 12 Jan 2015
Reporting date: 08 Jan 2015
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-36687

FORM 4 SUBMISSION

Filing date: 12 Nov 2014
Reporting date: 09 Nov 2014
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-36687

FORM 4 SUBMISSION

Filing date: 06 Nov 2014
Reporting date: 04 Nov 2014
SEC evidence: Open document Open filing
Next action: Verify source filing

3 File 001-36687

FORM 3 SUBMISSION

Filing date: 04 Nov 2014
Reporting date: 04 Nov 2014
SEC evidence: Open document Open filing
Next action: Verify source filing

About this filer

Michael R. Hayden files with the SEC under CIK 0001352908. 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.

Michael R. Hayden SEC EDGAR Filings

Save this filer page for the next filing cycle

Quick Takeaways

What Changed

Why This Matters

Source Evidence

Why revisit this filer page

What changed recently for Michael R. Hayden

Filer Overview

Latest Filings

4

PRIMARY DOCUMENT

PRIMARY DOCUMENT

FORM 4

PRIMARY DOCUMENT

4

PRIMARY DOCUMENT

PRIMARY DOCUMENT

FORM 4

4

FORM 4

FORM 4

PRIMARY DOCUMENT

PRIMARY DOCUMENT

4

PRIMARY DOCUMENT

FORM 4 SUBMISSION

FORM 4 SUBMISSION

PRIMARY DOCUMENT

PRIMARY DOCUMENT

PRIMARY DOCUMENT

FORM 4 SUBMISSION

FORM 4 SUBMISSION

PRIMARY DOCUMENT

FORM 4 SUBMISSION

PRIMARY DOCUMENT

PRIMARY DOCUMENT

FORM 4 SUBMISSION

FORM 4 SUBMISSION

FORM 4 SUBMISSION

FORM 4 SUBMISSION

FORM 4 SUBMISSION

FORM 4 SUBMISSION

FORM 4

FORM 3 SUBMISSION

FORM 4 SUBMISSION

FORM 3 SUBMISSION

PRIMARY DOCUMENT

FORM 4 SUBMISSION

PRIMARY DOCUMENT

FORM 4 SUBMISSION

FORM 4 SUBMISSION

FORM 4 SUBMISSION

FORM 3 SUBMISSION

PRIMARY DOCUMENT

FORM 4 SUBMISSION

PRIMARY DOCUMENT

FORM 4 SUBMISSION

FORM 4 SUBMISSION

PRIMARY DOCUMENT

PRIMARY DOCUMENT

PRIMARY DOCUMENT

OWNERSHIP DOCUMENT

OWNERSHIP DOCUMENT

OWNERSHIP DOCUMENT

OWNERSHIP DOCUMENT

OWNERSHIP DOCUMENT

OWNERSHIP DOCUMENT

4 filing

4 filing

OWNERSHIP DOCUMENT

OWNERSHIP DOCUMENT

FORM 4 SUBMISSION

FORM 4 SUBMISSION

FORM 3 SUBMISSION

About this filer

FAQ

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