Entity Type
Individual
Filer Snapshot
Matthew K. Fust SEC EDGAR Filings
SEC filings, ownership reports, and insider transactions for CIK 0001397266.
Total Filings
132
Latest Filing
30 Sep 2025
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.
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.
Source: SEC Forms 3/4/5
View Source Filing
4 filed on 30 Sep 2025 for CIK 0001397266.
- Business address
- C/O Ultragenyx Pharmaceutical Inc., 60 Leveroni Court, Novato, CA, 94949
- Top holdings (ownership)
- CRNX, RARE, NMRA, and ATRA
Quick Takeaways
- Matthew K. Fust is an SEC filer tracked under CIK 0001397266.
- 132 filings are listed on this profile.
- Common form coverage includes 4, 144, 3.
What Changed
- Latest filing: 4 filed on 30 Sep 2025.
- Report period: 26 Sep 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
View Source Filing
4 filed on 30 Sep 2025 for CIK 0001397266.
Return Loop
Why revisit this filer page
A newly filed 4 can change the filing history, ownership context, or next research path for Matthew K. Fust.
- Latest source-backed update
- 4 filed 30 Sep 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 Sep 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.
Latest update
What changed recently for Matthew K. Fust
Latest ownership report period: 26 Sep 2025. Open the source-backed page to inspect the fresh filing or facts context.
Update date
30 Sep 2025
Page type
Ownership filings
Latest period
26 Sep 2025
Ownership context was refreshed from SEC Forms 3/4/5 filed on 30 Sep 2025.
Filer Overview
Matthew K. Fust has filed 132 SEC EDGAR filings since 31 May 2007. Common forms include 4, 144, 3.
Latest Filings
Recent SEC filings for Matthew K. Fust 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 | 30 Sep 2025 | 26 Sep 2025 | 001-38583 |
| 144 | Open 144 document | View SEC filing for 144 | 26 Sep 2025 | |||
| 4 | Open 4 document | View SEC filing for 4 | 4 | 13 Jun 2025 | 11 Jun 2025 | 001-38583 |
| 4 | Open 4 document | View SEC filing for 4 | 12 Jun 2025 | 10 Jun 2025 | 001-36548 | |
| 4 | Open 4 document | View SEC filing for 4 | 4 | 30 May 2025 | 28 May 2025 | 001-41802 |
| 4 | Open 4 document | View SEC filing for 4 | 4 | 19 May 2025 | 15 May 2025 | 001-36276 |
| 4 | Open 4 document | View SEC filing for 4 | 4 | 18 Feb 2025 | 13 Feb 2025 | 001-41802 |
| 4 | Open 4 document | View SEC filing for 4 | 18 Oct 2024 | 17 Oct 2024 | 001-41802 | |
| 144 | Open 144 document | View SEC filing for 144 | 18 Oct 2024 | |||
| 144 | Open 144 document | View SEC filing for 144 | 17 Oct 2024 | |||
| 4 | Open 4 document | View SEC filing for 4 | 4 | 20 Jun 2024 | 18 Jun 2024 | 001-36276 |
| 4 | Open 4 document | View SEC filing for 4 | 14 Jun 2024 | 13 Jun 2024 | 001-41802 | |
| 4 | Open 4 document | View SEC filing for 4 | 4 | 11 Jun 2024 | 07 Jun 2024 | 001-38583 |
| 4 | Open 4 document | View SEC filing for 4 | 02 Apr 2024 | 31 Mar 2024 | 001-36548 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 22 Mar 2024 | 20 Mar 2024 | 001-38583 |
| 144 | Open 144 document | View SEC filing for 144 | 20 Mar 2024 | |||
| 4 | Open 4 document | View SEC filing for 4 | 4 | 11 Mar 2024 | 07 Mar 2024 | 001-36276 |
| 144 | Open 144 document | View SEC filing for 144 | 07 Mar 2024 | |||
| 4 | Open 4 document | View SEC filing for 4 | 18 Sep 2023 | 14 Sep 2023 | 001-41802 | |
| 3 | Open 3 document | View SEC filing for 3 | FORM 3 SUBMISSION | 14 Sep 2023 | 14 Sep 2023 | 001-41802 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 21 Jun 2023 | 16 Jun 2023 | 001-38583 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 09 Jun 2023 | 07 Jun 2023 | 001-36276 |
| 4 | Open 4 document | View SEC filing for 4 | 02 Jun 2023 | 31 May 2023 | 001-36548 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 15 Jul 2022 | 13 Jul 2022 | 001-38583 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 28 Jun 2022 | 24 Jun 2022 | 001-36276 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 27 Jun 2022 | 23 Jun 2022 | 001-36548 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 21 Jun 2022 | 17 Jun 2022 | 001-38583 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 08 Mar 2022 | 04 Mar 2022 | 001-36276 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 05 Nov 2021 | 04 Nov 2021 | 001-36548 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 03 Nov 2021 | 01 Nov 2021 | 001-38583 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 09 Sep 2021 | 08 Sep 2021 | 001-38583 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 27 Jul 2021 | 26 Jul 2021 | 001-38583 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 20 Jul 2021 | 19 Jul 2021 | 001-38583 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 13 Jul 2021 | 12 Jul 2021 | 001-38583 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 28 Jun 2021 | 24 Jun 2021 | 001-36276 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 23 Jun 2021 | 22 Jun 2021 | 001-38583 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 09 Jun 2021 | 08 Jun 2021 | 001-36548 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 08 Jul 2020 | 06 Jul 2020 | 001-36276 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 06 Jul 2020 | 01 Jul 2020 | 001-36276 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 30 Jun 2020 | 26 Jun 2020 | 001-36276 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 22 Jun 2020 | 19 Jun 2020 | 001-38583 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 17 Jun 2020 | 16 Jun 2020 | 001-36548 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 19 May 2020 | 18 May 2020 | 001-36276 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 24 Apr 2020 | 22 Apr 2020 | 001-36276 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 24 Feb 2020 | 20 Feb 2020 | 001-36668 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 26 Dec 2019 | 24 Dec 2019 | 001-36668 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 18 Dec 2019 | 16 Dec 2019 | 001-38583 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 13 Dec 2019 | 12 Dec 2019 | 001-36668 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 16 Sep 2019 | 12 Sep 2019 | 001-36668 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 01 Jul 2019 | 27 Jun 2019 | 001-36548 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 25 Jun 2019 | 21 Jun 2019 | 001-38583 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 14 Jun 2019 | 12 Jun 2019 | 001-36668 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 13 Jun 2019 | 11 Jun 2019 | 001-36276 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 06 Jun 2019 | 04 Jun 2019 | 001-36668 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 20 May 2019 | 16 May 2019 | 001-36112 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 08 Feb 2019 | 06 Feb 2019 | 001-36112 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 19 Oct 2018 | 19 Oct 2018 | 001-36668 |
| 3 | Open 3 document | View SEC filing for 3 | FORM 3 SUBMISSION | 17 Jul 2018 | 17 Jul 2018 | 001-38583 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 20 Jun 2018 | 19 Jun 2018 | 001-36276 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 18 Jun 2018 | 14 Jun 2018 | 001-36548 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 14 Jun 2018 | 12 Jun 2018 | 001-36668 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 30 May 2018 | 30 May 2018 | 001-36276 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 21 May 2018 | 17 May 2018 | 001-36112 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 16 May 2018 | 14 May 2018 | 001-36548 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 20 Feb 2018 | 15 Feb 2018 | 001-36548 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 17 Nov 2017 | 15 Nov 2017 | 001-36548 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 17 Aug 2017 | 15 Aug 2017 | 001-36548 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 22 Jun 2017 | 22 Jun 2017 | 001-36276 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 15 Jun 2017 | 13 Jun 2017 | 001-36668 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 12 Jun 2017 | 08 Jun 2017 | 001-36548 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 22 May 2017 | 18 May 2017 | 001-36112 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 17 May 2017 | 15 May 2017 | 001-36548 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 16 Feb 2017 | 15 Feb 2017 | 001-36548 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 05 Jan 2017 | 03 Jan 2017 | 001-36548 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 17 Nov 2016 | 15 Nov 2016 | 001-36548 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 17 Aug 2016 | 15 Aug 2016 | 001-36548 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 23 Jun 2016 | 21 Jun 2016 | 001-36668 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 14 Jun 2016 | 09 Jun 2016 | 001-36276 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 20 May 2016 | 18 May 2016 | 001-36112 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 18 May 2016 | 16 May 2016 | 001-36548 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 18 Feb 2016 | 16 Feb 2016 | 001-36548 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 05 Jan 2016 | 04 Jan 2016 | 001-36548 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 18 Nov 2015 | 16 Nov 2015 | 001-36548 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 19 Aug 2015 | 17 Aug 2015 | 001-36548 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 30 Jun 2015 | 29 Jun 2015 | 001-36668 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 22 Jun 2015 | 18 Jun 2015 | 001-36276 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 15 Jun 2015 | 11 Jun 2015 | 001-36668 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 21 May 2015 | 20 May 2015 | 001-36112 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 19 May 2015 | 15 May 2015 | 001-36548 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 - | 23 Mar 2015 | 19 Mar 2015 | 001-36276 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 21 Jan 2015 | 16 Jan 2015 | 001-36548 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 26 Nov 2014 | 25 Nov 2014 | 001-36668 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 23 Oct 2014 | 21 Oct 2014 | 001-36548 |
| 3 | Open 3 document | View SEC filing for 3 | FORM 3 SUBMISSION | 15 Oct 2014 | 15 Oct 2014 | 001-36548 |
| 3 | Open 3 document | View SEC filing for 3 | FORM 3 | 02 Oct 2014 | 02 Oct 2014 | 001-36668 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 17 Jul 2014 | 10 Jul 2014 | 001-36276 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 09 Jun 2014 | 05 Jun 2014 | 001-36112 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 07 Mar 2014 | 05 Mar 2014 | 001-36112 |
| 3 | Open 3 document | View SEC filing for 3 | FORM 3 SUBMISSION | 07 Mar 2014 | 05 Mar 2014 | 001-36112 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 03 Feb 2014 | 30 Jan 2014 | 001-36276 |
| 3 | Open 3 document | View SEC filing for 3 | FORM 3 SUBMISSION | 30 Jan 2014 | 30 Jan 2014 | 001-36276 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 03 Oct 2013 | 01 Oct 2013 | 000-28298 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 - | 12 Aug 2013 | 08 Aug 2013 | 000-28298 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 - | 29 Jul 2013 | 26 Jul 2013 | 000-28298 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 - | 05 Jul 2013 | 02 Jul 2013 | 000-28298 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 - | 15 May 2013 | 13 May 2013 | 000-28298 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 - | 16 Apr 2013 | 15 Apr 2013 | 000-28298 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 - | 03 Apr 2013 | 01 Apr 2013 | 000-28298 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 - | 01 Apr 2013 | 28 Mar 2013 | 000-28298 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 - | 05 Mar 2013 | 05 Mar 2013 | 000-28298 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 - | 04 Mar 2013 | 28 Feb 2013 | 000-28298 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 - | 11 Jan 2013 | 10 Jan 2013 | 000-28298 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 - | 30 Nov 2012 | 28 Nov 2012 | 000-28298 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 08 Aug 2012 | 06 Aug 2012 | 000-28298 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 27 Jul 2012 | 25 Jul 2012 | 000-28298 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 03 Apr 2012 | 30 Mar 2012 | 000-28298 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 06 Mar 2012 | 02 Mar 2012 | 000-28298 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 16 Feb 2012 | 14 Feb 2012 | 000-28298 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 10 Jan 2012 | 06 Jan 2012 | 000-28298 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 21 Nov 2011 | 18 Nov 2011 | 000-28298 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 04 Apr 2011 | 31 Mar 2011 | 000-28298 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 07 Jan 2011 | 06 Jan 2011 | 000-28298 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 02 Apr 2010 | 31 Mar 2010 | 000-28298 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 07 Jan 2010 | 06 Jan 2010 | 000-28298 |
About this filer
Matthew K. Fust files with the SEC under CIK 0001397266. 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.