Entity Type
Individual
- Info
- Portfolio
Filer Snapshot
William E. Oberndorf SEC EDGAR Filings
SEC filings, ownership reports, and insider transactions for CIK 0001218663.
Total Filings
330
Latest Filing
13 Feb 2026
Industry
n/a
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Source: SEC Form 13F
View Source Filing
13F-HR filed on 13 Feb 2026 for CIK 0001218663.
- Business address
- 615 Front Street, San Francisco, CA, 94111
- Top securities (13F)
- PHYS, ADSK, AMZN, UNH, TEAM, MNDY, and VEEV
Quick Takeaways
- William E. Oberndorf is an SEC filer tracked under CIK 0001218663.
- 330 filings are listed on this profile.
- Common form coverage includes 13F-HR, N-PX, SC 13G/A and more.
What Changed
- Latest filing: 13F-HR filed on 13 Feb 2026.
- Report period: 31 Dec 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 Form 13F
View Source Filing
13F-HR filed on 13 Feb 2026 for CIK 0001218663.
Return Loop
Why revisit this filer page
A newly filed 13F-HR can change the filing history, ownership context, or next research path for William E. Oberndorf.
- Latest source-backed update
- 13F-HR filed 13 Feb 2026
- Why come back
- Revisit after a new SEC filing appears to compare the updated record with prior filings.
- Latest filing on record: 13F-HR filed 13 Feb 2026.
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Filer freshness comes from SEC EDGAR submission history and related source-backed ownership or portfolio filings when available.
Latest update
What changed recently for William E. Oberndorf
Latest 13F period: Q4 2025. Open the source-backed page to inspect the fresh filing or facts context.
Update date
13 Feb 2026
Page type
Filer profile
Latest period
Q4 2025
Institutional portfolio context was refreshed from a 13F filing filed on 13 Feb 2026.
Filer Overview
William E. Oberndorf has filed 330 SEC EDGAR filings since 07 Aug 2003. Common forms include 13F-HR, N-PX, SC 13G/A, 13F-HR/A and more.
Latest Filings
Recent SEC filings for William E. Oberndorf with direct links to document and filing folders.
| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 13 Feb 2026 | 31 Dec 2025 | 028-16214 | |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 13 Nov 2025 | 30 Sep 2025 | 028-16214 | |
| N-PX | Open N-PX document | View SEC filing for N-PX | 26 Aug 2025 | 30 Jun 2025 | 028-16214 | |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 11 Aug 2025 | 30 Jun 2025 | 028-16214 | |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 14 May 2025 | 31 Mar 2025 | 028-16214 | |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 18 Feb 2025 | 31 Dec 2024 | 028-16214 | |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 13 Nov 2024 | 30 Sep 2024 | 028-16214 | |
| N-PX | Open N-PX document | View SEC filing for N-PX | 03 Sep 2024 | 30 Jun 2024 | 028-16214 | |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 12 Aug 2024 | 30 Jun 2024 | 028-16214 | |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 15 May 2024 | 31 Mar 2024 | 028-16214 | |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 13 Feb 2024 | 31 Dec 2023 | 028-16214 | |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 13 Nov 2023 | 30 Sep 2023 | 028-16214 | |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 11 Aug 2023 | 30 Jun 2023 | 028-16214 | |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 12 May 2023 | 31 Mar 2023 | 028-16214 | |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 13 Feb 2023 | 31 Dec 2022 | 028-16214 | |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 14 Nov 2022 | 30 Sep 2022 | 028-16214 | |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 12 Aug 2022 | 30 Jun 2022 | 028-16214 | |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 13 May 2022 | 31 Mar 2022 | 028-16214 | |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 14 Feb 2022 | 31 Dec 2021 | 028-16214 | |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 15 Nov 2021 | 30 Sep 2021 | 028-16214 | |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 13 Aug 2021 | 30 Jun 2021 | 028-16214 | |
| SC 13G/A | Open SC 13G/A document | View SEC filing for SC 13G/A | SC 13G/A | 23 Jun 2021 | ||
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 14 May 2021 | 31 Mar 2021 | 028-16214 | |
| SC 13G/A | Open SC 13G/A document | View SEC filing for SC 13G/A | SC 13G/A | 12 Feb 2021 | ||
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 12 Feb 2021 | 31 Dec 2020 | 028-16214 | |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 16 Nov 2020 | 30 Sep 2020 | 028-16214 | |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 13 Aug 2020 | 30 Jun 2020 | 028-16214 | |
| 13F-HR/A | Open 13F-HR/A document | View SEC filing for 13F-HR/A | 13 Aug 2020 | 31 Mar 2020 | 028-16214 | |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 14 May 2020 | 31 Mar 2020 | 028-16214 | |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 13 Feb 2020 | 31 Dec 2019 | 028-16214 | |
| SC 13G/A | Open SC 13G/A document | View SEC filing for SC 13G/A | SC 13G/A | 13 Feb 2020 | ||
| SC 13G/A | Open SC 13G/A document | View SEC filing for SC 13G/A | SC 13G/A | 13 Feb 2020 | ||
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 13 Nov 2019 | 30 Sep 2019 | 028-16214 | |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 13 Aug 2019 | 30 Jun 2019 | 028-16214 | |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 14 May 2019 | 31 Mar 2019 | 028-16214 | |
| SC 13G/A | Open SC 13G/A document | View SEC filing for SC 13G/A | SCHEDULE 13G, AMENDMENT NO. 2 | 14 Feb 2019 | ||
| SC 13G/A | Open SC 13G/A document | View SEC filing for SC 13G/A | AMENDMENT NO. 2 TO SCHEDULE 13G | 14 Feb 2019 | ||
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 13 Feb 2019 | 31 Dec 2018 | 028-16214 | |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 14 Nov 2018 | 30 Sep 2018 | 028-16214 | |
| SC 13G | Open SC 13G document | View SEC filing for SC 13G | SCHEDULE 13G | 15 Oct 2018 | ||
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 10 Aug 2018 | 30 Jun 2018 | 028-16214 | |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 11 May 2018 | 31 Mar 2018 | 028-16214 | |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 12 Feb 2018 | 31 Dec 2017 | 028-16214 | |
| SC 13G/A | Open SC 13G/A document | View SEC filing for SC 13G/A | SC 13G/A | 09 Feb 2018 | ||
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 08 Nov 2017 | 30 Sep 2017 | 028-16214 | |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 10 Aug 2017 | 30 Jun 2017 | 028-16214 | |
| SC 13G/A | Open SC 13G/A document | View SEC filing for SC 13G/A | AMENDMENT NO.1 TO SCHEDULE 13G | 22 Jun 2017 | ||
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 21 Jun 2017 | 19 Jun 2017 | 001-37468 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 11 May 2017 | 09 May 2017 | 001-37468 |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 11 May 2017 | 31 Mar 2017 | 028-16214 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 24 Mar 2017 | 22 Mar 2017 | 001-37468 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 07 Mar 2017 | 03 Mar 2017 | 001-37468 |
| SC 13G | Open SC 13G document | View SEC filing for SC 13G | SC 13G | 22 Feb 2017 | ||
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 09 Feb 2017 | 31 Dec 2016 | 028-16214 | |
| SC 13G | Open SC 13G document | View SEC filing for SC 13G | SC 13G | 18 Nov 2016 | ||
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 09 Nov 2016 | 30 Sep 2016 | 028-16214 | |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 11 Aug 2016 | 30 Jun 2016 | 028-16214 | |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 10 May 2016 | 31 Mar 2016 | 028-16214 | |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 11 Feb 2016 | 31 Dec 2015 | 028-16214 | |
| SC 13D/A | Open SC 13D/A document | View SEC filing for SC 13D/A | SC 13D/A | 15 Jan 2016 | ||
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 12 Nov 2015 | 30 Sep 2015 | 028-16214 | |
| SC 13D | Open SC 13D document | View SEC filing for SC 13D | SC 13D | 16 Oct 2015 | ||
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 08 Oct 2015 | 06 Oct 2015 | 001-37468 |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 12 Aug 2015 | 30 Jun 2015 | 028-16214 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 13 Jul 2015 | 09 Jul 2015 | 001-37468 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 09 Jul 2015 | 07 Jul 2015 | 001-37468 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 07 Jul 2015 | 02 Jul 2015 | 001-37468 |
| SC 13G | Open SC 13G document | View SEC filing for SC 13G | SC 13G | 07 Jul 2015 | ||
| 3 | Open 3 document | View SEC filing for 3 | FORM 3 SUBMISSION | 07 Jul 2015 | 30 Jun 2015 | 001-37468 |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 13 May 2015 | 31 Mar 2015 | 028-16214 | |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 12 Feb 2015 | 31 Dec 2014 | 028-16214 | |
| 13F-HR/A | Open 13F-HR/A document | View SEC filing for 13F-HR/A | 12 Feb 2015 | 30 Sep 2014 | 028-16214 | |
| 13F-HR/A | Open 13F-HR/A document | View SEC filing for 13F-HR/A | 12 Feb 2015 | 30 Jun 2014 | 028-16214 | |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 13 Nov 2014 | 30 Sep 2014 | 028-16214 | |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 11 Aug 2014 | 30 Jun 2014 | 028-16214 | |
| SC 13D/A | Open SC 13D/A document | View SEC filing for SC 13D/A | AMENDMENT NO. 3 TO SCHEDULE 13D | 10 May 2013 | ||
| SC 13D/A | Open SC 13D/A document | View SEC filing for SC 13D/A | AMENDMENT NO. 1 TO SCHEDULE 13D | 20 Nov 2012 | ||
| SC 13D/A | Open SC 13D/A document | View SEC filing for SC 13D/A | AMENDMENT NO. 1 TO SCHEDULE 13D | 09 Oct 2012 | ||
| SC 13D | Open SC 13D document | View SEC filing for SC 13D | SCHEDULE 13D | 29 May 2012 | ||
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 17 May 2012 | 15 May 2012 | 001-12079 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 - WEO DEPARTURE | 02 Apr 2012 | 31 Mar 2012 | 000-30242 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 - WEO DEPARTURE | 02 Apr 2012 | 31 Mar 2012 | 001-34464 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 - WEO DEPARTURE | 02 Apr 2012 | 31 Mar 2012 | 001-32681 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 - WEO DEPARTURE | 02 Apr 2012 | 31 Mar 2012 | 001-34776 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 - WEO DEPARTURE | 02 Apr 2012 | 31 Mar 2012 | 001-14837 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 - WEO DEPARTURE | 02 Apr 2012 | 31 Mar 2012 | 001-12079 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 - WEO DEPARTURE | 02 Apr 2012 | 31 Mar 2012 | 000-26994 |
| 4 | Open 4 document | View SEC filing for 4 | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 13 Feb 2012 | 13 Feb 2012 | 001-12079 |
| 5 | Open 5 document | View SEC filing for 5 | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES - 2.14.12 | 13 Feb 2012 | 31 Dec 2011 | 001-12079 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 - PETROQUEST ENERGY | 03 Feb 2012 | 01 Feb 2012 | 001-32681 |
| 4 | Open 4 document | View SEC filing for 4 | CCI - FORM 4 - 1.31.12 | 31 Jan 2012 | 27 Jan 2012 | 001-16441 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 OASIS | 29 Aug 2011 | 25 Aug 2011 | 001-34776 |
| 3 | Open 3 document | View SEC filing for 3 | FORM 3 OASIS | 29 Aug 2011 | 24 Aug 2011 | 001-34776 |
| 4 | Open 4 document | View SEC filing for 4 | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP | 05 Aug 2011 | 03 Aug 2011 | 001-12744 |
| 4 | Open 4 document | View SEC filing for 4 | WEO RSU'S 5.11.11 | 13 May 2011 | 11 May 2011 | 001-12079 |
| 4 | Open 4 document | View SEC filing for 4 | CCI - FORM 4 - 5/11/11 | 11 May 2011 | 09 May 2011 | 001-16441 |
| 4 | Open 4 document | View SEC filing for 4 | LBTYA SALES - 5/4/11 | 06 May 2011 | 04 May 2011 | 000-51360 |
| 4 | Open 4 document | View SEC filing for 4 | CCI - FORM 4 - 5/5/11 | 05 May 2011 | 03 May 2011 | 001-16441 |
| 4 | Open 4 document | View SEC filing for 4 | LBTYA SALES - 5/2/11 | 02 May 2011 | 28 Apr 2011 | 000-51360 |
| 4 | Open 4 document | View SEC filing for 4 | CCI - FORM 4 - 5/2/11 | 02 May 2011 | 28 Apr 2011 | 001-16441 |
| 4 | Open 4 document | View SEC filing for 4 | LBTYA SALES - 4/22/11 | 22 Apr 2011 | 20 Apr 2011 | 000-51360 |
| 4 | Open 4 document | View SEC filing for 4 | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES 3/24/11 | 24 Mar 2011 | 22 Mar 2011 | 000-51360 |
| 4 | Open 4 document | View SEC filing for 4 | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 21 Mar 2011 | 17 Mar 2011 | 000-51360 |
| 4 | Open 4 document | View SEC filing for 4 | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES-2.1.11 REN | 01 Feb 2011 | 28 Jan 2011 | 001-34464 |
| 4 | Open 4 document | View SEC filing for 4 | CCI - FORM 4 - 8/3/10 | 03 Aug 2010 | 30 Jul 2010 | 001-16441 |
| 4 | Open 4 document | View SEC filing for 4 | CCI - FORM 4 - 7/28/10 | 28 Jul 2010 | 26 Jul 2010 | 001-16441 |
| 4 | Open 4 document | View SEC filing for 4 | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP (3) | 30 Jun 2010 | 28 Jun 2010 | 001-16441 |
| 4 | Open 4 document | View SEC filing for 4 | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP | 24 Jun 2010 | 22 Jun 2010 | 001-16441 |
| 4 | Open 4 document | View SEC filing for 4 | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP | 21 Jun 2010 | 17 Jun 2010 | 001-16441 |
| 4 | Open 4 document | View SEC filing for 4 | INITIAL FORM 4 - PETROQUEST ENERGY | 24 May 2010 | 20 May 2010 | 001-32681 |
| 4 | Open 4 document | View SEC filing for 4 | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES 5/20/10 | 24 May 2010 | 20 May 2010 | 000-30242 |
| 4 | Open 4 document | View SEC filing for 4 | CALPINE PATTERSON RSU 5.19.10 | 21 May 2010 | 19 May 2010 | 001-12079 |
| 3 | Open 3 document | View SEC filing for 3 | FORM 3 PETROQUEST | 17 May 2010 | 07 May 2010 | 001-32681 |
| 4 | Open 4 document | View SEC filing for 4 | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP | 05 Apr 2010 | 01 Apr 2010 | 001-16441 |
| 5 | Open 5 document | View SEC filing for 5 | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 16 Feb 2010 | 27 Jul 2009 | 001-12079 |
About this filer
William E. Oberndorf files with the SEC under CIK 0001218663. 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.