Research paths
Matthew K. Fust
Filer Snapshot
Matthew K. Fust
CIK 0001397266 . SEC filing timeline plus parsed ownership intelligence from 13F, 13D/G, and Forms 3/4/5 where available.
Entity Type
Individual
Total Filings
133
Latest Filing
18 May 2026
Industry
n/a
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Open 13F if you want portfolio holdings.
Open 13D/G or insider pages only when this CIK has those rows.
Business address
C/O Ultragenyx Pharmaceutical Inc., 60 Leveroni Court, Novato, CA, 94949
Top holdings (ownership)
CRNX, RARE, NMRA, and ATRA
Filer intelligence
What SEC filings say about Matthew K. Fust
A compact read of parsed XML filings. 13F, 13D/G, and Forms 3/4/5 are shown separately because they answer different ownership questions.
Quick read
Forms 3/4/5 show insider context for CRNX worth $1.02M.
SEC source mix
Counts show available parsed rows, not one combined ownership total.
XML parsed
13F portfolio
No rows yet
Quarterly institutional portfolio holdings.
Open
13D/G stakes
No rows yet
Beneficial ownership and large-stake disclosures.
Open
Forms 3/4/5
4 rows
Officer, director, and 10% owner holdings or transactions.
Open
Forms 3/4/5 insider context
Latest update
What changed recently for Matthew K. Fust
Ownership report updated
Latest ownership report period: 14 May 2026. Open the source-backed page to inspect the fresh filing or facts context.
Update date
18 May 2026
Page type
Ownership filings
Latest period
14 May 2026
Ownership context was refreshed from SEC Forms 3/4/5 filed on 18 May 2026.
Filer Overview
Matthew K. Fust has filed 133 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.
4
File 001-36276
4
Filing date
18 May 2026
Reporting date
14 May 2026
Next action
Verify source filing
4
File 001-38583
FORM 4
Filing date
30 Sep 2025
Reporting date
26 Sep 2025
Next action
Verify source filing
144
144 filing
Filing date
26 Sep 2025
Reporting date
Not listed
Next action
Verify source filing
4
File 001-38583
4
Filing date
13 Jun 2025
Reporting date
11 Jun 2025
Next action
Verify source filing
4
File 001-36548
4 filing
Filing date
12 Jun 2025
Reporting date
10 Jun 2025
Next action
Verify source filing
4
File 001-41802
4
Filing date
30 May 2025
Reporting date
28 May 2025
Next action
Verify source filing
4
File 001-36276
4
Filing date
19 May 2025
Reporting date
15 May 2025
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Verify source filing
4
File 001-41802
4
Filing date
18 Feb 2025
Reporting date
13 Feb 2025
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4
File 001-41802
4 filing
Filing date
18 Oct 2024
Reporting date
17 Oct 2024
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Verify source filing
144
144 filing
Filing date
18 Oct 2024
Reporting date
Not listed
Next action
Verify source filing
144
144 filing
Filing date
17 Oct 2024
Reporting date
Not listed
Next action
Verify source filing
4
File 001-36276
4
Filing date
20 Jun 2024
Reporting date
18 Jun 2024
Next action
Verify source filing
4
File 001-41802
4 filing
Filing date
14 Jun 2024
Reporting date
13 Jun 2024
Next action
Verify source filing
4
File 001-38583
4
Filing date
11 Jun 2024
Reporting date
07 Jun 2024
Next action
Verify source filing
4
File 001-36548
4 filing
Filing date
02 Apr 2024
Reporting date
31 Mar 2024
Next action
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4
File 001-38583
FORM 4 SUBMISSION
Filing date
22 Mar 2024
Reporting date
20 Mar 2024
Next action
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144
144 filing
Filing date
20 Mar 2024
Reporting date
Not listed
Next action
Verify source filing
4
File 001-36276
4
Filing date
11 Mar 2024
Reporting date
07 Mar 2024
Next action
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144
144 filing
Filing date
07 Mar 2024
Reporting date
Not listed
Next action
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4
File 001-41802
4 filing
Filing date
18 Sep 2023
Reporting date
14 Sep 2023
Next action
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3
File 001-41802
FORM 3 SUBMISSION
Filing date
14 Sep 2023
Reporting date
14 Sep 2023
Next action
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4
File 001-38583
FORM 4 SUBMISSION
Filing date
21 Jun 2023
Reporting date
16 Jun 2023
Next action
Verify source filing
4
File 001-36276
FORM 4 SUBMISSION
Filing date
09 Jun 2023
Reporting date
07 Jun 2023
Next action
Verify source filing
4
File 001-36548
4 filing
Filing date
02 Jun 2023
Reporting date
31 May 2023
Next action
Verify source filing
4
File 001-38583
FORM 4 SUBMISSION
Filing date
15 Jul 2022
Reporting date
13 Jul 2022
Next action
Verify source filing
4
File 001-36276
FORM 4 SUBMISSION
Filing date
28 Jun 2022
Reporting date
24 Jun 2022
Next action
Verify source filing
4
File 001-36548
FORM 4
Filing date
27 Jun 2022
Reporting date
23 Jun 2022
Next action
Verify source filing
4
File 001-38583
FORM 4 SUBMISSION
Filing date
21 Jun 2022
Reporting date
17 Jun 2022
Next action
Verify source filing
4
File 001-36276
FORM 4 SUBMISSION
Filing date
08 Mar 2022
Reporting date
04 Mar 2022
Next action
Verify source filing
4
File 001-36548
FORM 4
Filing date
05 Nov 2021
Reporting date
04 Nov 2021
Next action
Verify source filing
4
File 001-38583
FORM 4 SUBMISSION
Filing date
03 Nov 2021
Reporting date
01 Nov 2021
Next action
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4
File 001-38583
FORM 4 SUBMISSION
Filing date
09 Sep 2021
Reporting date
08 Sep 2021
Next action
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4
File 001-38583
FORM 4 SUBMISSION
Filing date
27 Jul 2021
Reporting date
26 Jul 2021
Next action
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4
File 001-38583
FORM 4 SUBMISSION
Filing date
20 Jul 2021
Reporting date
19 Jul 2021
Next action
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4
File 001-38583
FORM 4 SUBMISSION
Filing date
13 Jul 2021
Reporting date
12 Jul 2021
Next action
Verify source filing
4
File 001-36276
FORM 4 SUBMISSION
Filing date
28 Jun 2021
Reporting date
24 Jun 2021
Next action
Verify source filing
4
File 001-38583
FORM 4 SUBMISSION
Filing date
23 Jun 2021
Reporting date
22 Jun 2021
Next action
Verify source filing
4
File 001-36548
FORM 4
Filing date
09 Jun 2021
Reporting date
08 Jun 2021
Next action
Verify source filing
4
File 001-36276
FORM 4 SUBMISSION
Filing date
08 Jul 2020
Reporting date
06 Jul 2020
Next action
Verify source filing
4
File 001-36276
FORM 4 SUBMISSION
Filing date
06 Jul 2020
Reporting date
01 Jul 2020
Next action
Verify source filing
4
File 001-36276
FORM 4 SUBMISSION
Filing date
30 Jun 2020
Reporting date
26 Jun 2020
Next action
Verify source filing
4
File 001-38583
FORM 4 SUBMISSION
Filing date
22 Jun 2020
Reporting date
19 Jun 2020
Next action
Verify source filing
4
File 001-36548
FORM 4 SUBMISSION
Filing date
17 Jun 2020
Reporting date
16 Jun 2020
Next action
Verify source filing
4
File 001-36276
FORM 4 SUBMISSION
Filing date
19 May 2020
Reporting date
18 May 2020
Next action
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4
File 001-36276
FORM 4 SUBMISSION
Filing date
24 Apr 2020
Reporting date
22 Apr 2020
Next action
Verify source filing
4
File 001-36668
PRIMARY DOCUMENT
Filing date
24 Feb 2020
Reporting date
20 Feb 2020
Next action
Verify source filing
4
File 001-36668
PRIMARY DOCUMENT
Filing date
26 Dec 2019
Reporting date
24 Dec 2019
Next action
Verify source filing
4
File 001-38583
FORM 4 SUBMISSION
Filing date
18 Dec 2019
Reporting date
16 Dec 2019
Next action
Verify source filing
4
File 001-36668
PRIMARY DOCUMENT
Filing date
13 Dec 2019
Reporting date
12 Dec 2019
Next action
Verify source filing
4
File 001-36668
PRIMARY DOCUMENT
Filing date
16 Sep 2019
Reporting date
12 Sep 2019
Next action
Verify source filing
4
File 001-36548
FORM 4 SUBMISSION
Filing date
01 Jul 2019
Reporting date
27 Jun 2019
Next action
Verify source filing
4
File 001-38583
FORM 4 SUBMISSION
Filing date
25 Jun 2019
Reporting date
21 Jun 2019
Next action
Verify source filing
4
File 001-36668
PRIMARY DOCUMENT
Filing date
14 Jun 2019
Reporting date
12 Jun 2019
Next action
Verify source filing
4
File 001-36276
FORM 4 SUBMISSION
Filing date
13 Jun 2019
Reporting date
11 Jun 2019
Next action
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4
File 001-36668
PRIMARY DOCUMENT
Filing date
06 Jun 2019
Reporting date
04 Jun 2019
Next action
Verify source filing
4
File 001-36112
FORM 4
Filing date
20 May 2019
Reporting date
16 May 2019
Next action
Verify source filing
4
File 001-36112
FORM 4
Filing date
08 Feb 2019
Reporting date
06 Feb 2019
Next action
Verify source filing
4
File 001-36668
PRIMARY DOCUMENT
Filing date
19 Oct 2018
Reporting date
19 Oct 2018
Next action
Verify source filing
3
File 001-38583
FORM 3 SUBMISSION
Filing date
17 Jul 2018
Reporting date
17 Jul 2018
Next action
Verify source filing
4
File 001-36276
FORM 4 SUBMISSION
Filing date
20 Jun 2018
Reporting date
19 Jun 2018
Next action
Verify source filing
4
File 001-36548
FORM 4 SUBMISSION
Filing date
18 Jun 2018
Reporting date
14 Jun 2018
Next action
Verify source filing
4
File 001-36668
PRIMARY DOCUMENT
Filing date
14 Jun 2018
Reporting date
12 Jun 2018
Next action
Verify source filing
4
File 001-36276
FORM 4 SUBMISSION
Filing date
30 May 2018
Reporting date
30 May 2018
Next action
Verify source filing
4
File 001-36112
FORM 4
Filing date
21 May 2018
Reporting date
17 May 2018
Next action
Verify source filing
4
File 001-36548
FORM 4 SUBMISSION
Filing date
16 May 2018
Reporting date
14 May 2018
Next action
Verify source filing
4
File 001-36548
FORM 4 SUBMISSION
Filing date
20 Feb 2018
Reporting date
15 Feb 2018
Next action
Verify source filing
4
File 001-36548
FORM 4 SUBMISSION
Filing date
17 Nov 2017
Reporting date
15 Nov 2017
Next action
Verify source filing
4
File 001-36548
FORM 4 SUBMISSION
Filing date
17 Aug 2017
Reporting date
15 Aug 2017
Next action
Verify source filing
4
File 001-36276
FORM 4 SUBMISSION
Filing date
22 Jun 2017
Reporting date
22 Jun 2017
Next action
Verify source filing
4
File 001-36668
PRIMARY DOCUMENT
Filing date
15 Jun 2017
Reporting date
13 Jun 2017
Next action
Verify source filing
4
File 001-36548
FORM 4 SUBMISSION
Filing date
12 Jun 2017
Reporting date
08 Jun 2017
Next action
Verify source filing
4
File 001-36112
FORM 4
Filing date
22 May 2017
Reporting date
18 May 2017
Next action
Verify source filing
4
File 001-36548
FORM 4 SUBMISSION
Filing date
17 May 2017
Reporting date
15 May 2017
Next action
Verify source filing
4
File 001-36548
FORM 4 SUBMISSION
Filing date
16 Feb 2017
Reporting date
15 Feb 2017
Next action
Verify source filing
4
File 001-36548
FORM 4 SUBMISSION
Filing date
05 Jan 2017
Reporting date
03 Jan 2017
Next action
Verify source filing
4
File 001-36548
FORM 4 SUBMISSION
Filing date
17 Nov 2016
Reporting date
15 Nov 2016
Next action
Verify source filing
4
File 001-36548
FORM 4 SUBMISSION
Filing date
17 Aug 2016
Reporting date
15 Aug 2016
Next action
Verify source filing
4
File 001-36668
PRIMARY DOCUMENT
Filing date
23 Jun 2016
Reporting date
21 Jun 2016
Next action
Verify source filing
4
File 001-36276
PRIMARY DOCUMENT
Filing date
14 Jun 2016
Reporting date
09 Jun 2016
Next action
Verify source filing
4
File 001-36112
FORM 4
Filing date
20 May 2016
Reporting date
18 May 2016
Next action
Verify source filing
4
File 001-36548
FORM 4 SUBMISSION
Filing date
18 May 2016
Reporting date
16 May 2016
Next action
Verify source filing
4
File 001-36548
FORM 4 SUBMISSION
Filing date
18 Feb 2016
Reporting date
16 Feb 2016
Next action
Verify source filing
4
File 001-36548
FORM 4 SUBMISSION
Filing date
05 Jan 2016
Reporting date
04 Jan 2016
Next action
Verify source filing
4
File 001-36548
FORM 4 SUBMISSION
Filing date
18 Nov 2015
Reporting date
16 Nov 2015
Next action
Verify source filing
4
File 001-36548
FORM 4 SUBMISSION
Filing date
19 Aug 2015
Reporting date
17 Aug 2015
Next action
Verify source filing
4
File 001-36668
FORM 4
Filing date
30 Jun 2015
Reporting date
29 Jun 2015
Next action
Verify source filing
4
File 001-36276
PRIMARY DOCUMENT
Filing date
22 Jun 2015
Reporting date
18 Jun 2015
Next action
Verify source filing
4
File 001-36668
FORM 4
Filing date
15 Jun 2015
Reporting date
11 Jun 2015
Next action
Verify source filing
4
File 001-36112
FORM 4
Filing date
21 May 2015
Reporting date
20 May 2015
Next action
Verify source filing
4
File 001-36548
FORM 4 SUBMISSION
Filing date
19 May 2015
Reporting date
15 May 2015
Next action
Verify source filing
4
File 001-36276
FORM 4 -
Filing date
23 Mar 2015
Reporting date
19 Mar 2015
Next action
Verify source filing
4
File 001-36548
FORM 4 SUBMISSION
Filing date
21 Jan 2015
Reporting date
16 Jan 2015
Next action
Verify source filing
4
File 001-36668
FORM 4
Filing date
26 Nov 2014
Reporting date
25 Nov 2014
Next action
Verify source filing
4
File 001-36548
FORM 4 SUBMISSION
Filing date
23 Oct 2014
Reporting date
21 Oct 2014
Next action
Verify source filing
3
File 001-36548
FORM 3 SUBMISSION
Filing date
15 Oct 2014
Reporting date
15 Oct 2014
Next action
Verify source filing
3
File 001-36668
FORM 3
Filing date
02 Oct 2014
Reporting date
02 Oct 2014
Next action
Verify source filing
4
File 001-36276
FORM 4 SUBMISSION
Filing date
17 Jul 2014
Reporting date
10 Jul 2014
Next action
Verify source filing
4
File 001-36112
FORM 4 SUBMISSION
Filing date
09 Jun 2014
Reporting date
05 Jun 2014
Next action
Verify source filing
4
File 001-36112
FORM 4 SUBMISSION
Filing date
07 Mar 2014
Reporting date
05 Mar 2014
Next action
Verify source filing
3
File 001-36112
FORM 3 SUBMISSION
Filing date
07 Mar 2014
Reporting date
05 Mar 2014
Next action
Verify source filing
4
File 001-36276
FORM 4 SUBMISSION
Filing date
03 Feb 2014
Reporting date
30 Jan 2014
Next action
Verify source filing
3
File 001-36276
FORM 3 SUBMISSION
Filing date
30 Jan 2014
Reporting date
30 Jan 2014
Next action
Verify source filing
4
File 000-28298
FORM 4
Filing date
03 Oct 2013
Reporting date
01 Oct 2013
Next action
Verify source filing
4
File 000-28298
FORM 4 -
Filing date
12 Aug 2013
Reporting date
08 Aug 2013
Next action
Verify source filing
4
File 000-28298
FORM 4 -
Filing date
29 Jul 2013
Reporting date
26 Jul 2013
Next action
Verify source filing
4
File 000-28298
FORM 4 -
Filing date
05 Jul 2013
Reporting date
02 Jul 2013
Next action
Verify source filing
4
File 000-28298
FORM 4 -
Filing date
15 May 2013
Reporting date
13 May 2013
Next action
Verify source filing
4
File 000-28298
FORM 4 -
Filing date
16 Apr 2013
Reporting date
15 Apr 2013
Next action
Verify source filing
4
File 000-28298
FORM 4 -
Filing date
03 Apr 2013
Reporting date
01 Apr 2013
Next action
Verify source filing
4
File 000-28298
FORM 4 -
Filing date
01 Apr 2013
Reporting date
28 Mar 2013
Next action
Verify source filing
4
File 000-28298
FORM 4 -
Filing date
05 Mar 2013
Reporting date
05 Mar 2013
Next action
Verify source filing
4
File 000-28298
FORM 4 -
Filing date
04 Mar 2013
Reporting date
28 Feb 2013
Next action
Verify source filing
4
File 000-28298
FORM 4 -
Filing date
11 Jan 2013
Reporting date
10 Jan 2013
Next action
Verify source filing
4
File 000-28298
FORM 4 -
Filing date
30 Nov 2012
Reporting date
28 Nov 2012
Next action
Verify source filing
4
File 000-28298
FORM 4 SUBMISSION
Filing date
08 Aug 2012
Reporting date
06 Aug 2012
Next action
Verify source filing
4
File 000-28298
FORM 4 SUBMISSION
Filing date
27 Jul 2012
Reporting date
25 Jul 2012
Next action
Verify source filing
4
File 000-28298
FORM 4 SUBMISSION
Filing date
03 Apr 2012
Reporting date
30 Mar 2012
Next action
Verify source filing
4
File 000-28298
FORM 4 SUBMISSION
Filing date
06 Mar 2012
Reporting date
02 Mar 2012
Next action
Verify source filing
4
File 000-28298
FORM 4 SUBMISSION
Filing date
16 Feb 2012
Reporting date
14 Feb 2012
Next action
Verify source filing
4
File 000-28298
FORM 4 SUBMISSION
Filing date
10 Jan 2012
Reporting date
06 Jan 2012
Next action
Verify source filing
4
File 000-28298
FORM 4 SUBMISSION
Filing date
21 Nov 2011
Reporting date
18 Nov 2011
Next action
Verify source filing
4
File 000-28298
FORM 4 SUBMISSION
Filing date
04 Apr 2011
Reporting date
31 Mar 2011
Next action
Verify source filing
4
File 000-28298
FORM 4 SUBMISSION
Filing date
07 Jan 2011
Reporting date
06 Jan 2011
Next action
Verify source filing
4
File 000-28298
FORM 4 SUBMISSION
Filing date
02 Apr 2010
Reporting date
31 Mar 2010
Next action
Verify source filing
4
File 000-28298
FORM 4 SUBMISSION
Filing date
07 Jan 2010
Reporting date
06 Jan 2010
Next action
Verify source filing
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.
CIK / security context first
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