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

William D. Waddill SEC EDGAR Filings

SEC filings, ownership reports, and insider transactions for CIK 0001553338.

Entity Type

Individual

Total Filings

Latest Filing

06 Feb 2026

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 06 Feb 2026 for CIK 0001553338.

View Source Filing

Business address: C/O Calithera Biosciences, 343 Oyster Point Blvd, Suite 200, So. San Francisco, CA, 94080
Top holdings (ownership): ARWR and PTGX

Quick Takeaways

William D. Waddill is an SEC filer tracked under CIK 0001553338.
71 filings are listed on this profile.
Common form coverage includes 4, 144, 3.

What Changed

Latest filing: 4 filed on 06 Feb 2026.
Report period: 06 Feb 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 06 Feb 2026 for CIK 0001553338.

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 William D. Waddill.

Latest source-backed update: 4 filed 06 Feb 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 06 Feb 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.

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Latest update

What changed recently for William D. Waddill

Ownership report updated

Latest ownership report period: 06 Feb 2026. Open the source-backed page to inspect the fresh filing or facts context.

Update date

06 Feb 2026

Page type

Ownership filings

Latest period

06 Feb 2026

Ownership context was refreshed from SEC Forms 3/4/5 filed on 06 Feb 2026.

Open ownership filings Browse recent public updates

Filer Overview

William D. Waddill has filed 71 SEC EDGAR filings since 17 Jul 2013. Common forms include 4, 144, 3.

Reporting owner transactions Latest 13F filings

Latest Filings

Recent SEC filings for William D. Waddill with direct links to document and filing folders.

4 File 001-37852

OWNERSHIP DOCUMENT

Filing date: 06 Feb 2026
Reporting date: 06 Feb 2026
SEC evidence: Open document Open filing
Next action: Verify source filing

144

144 filing

Filing date: 06 Feb 2026
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-37852

OWNERSHIP DOCUMENT

Filing date: 06 Jan 2026
Reporting date: 02 Jan 2026
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38042

FORM 4

Filing date: 23 Dec 2025
Reporting date: 19 Dec 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

144

144 filing

Filing date: 19 Dec 2025
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38042

FORM 4

Filing date: 18 Dec 2025
Reporting date: 16 Dec 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-37852

OWNERSHIP DOCUMENT

Filing date: 14 Oct 2025
Reporting date: 10 Oct 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

144

144 filing

Filing date: 10 Oct 2025
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-37852

OWNERSHIP DOCUMENT

Filing date: 24 Sep 2025
Reporting date: 22 Sep 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

144

144 filing

Filing date: 22 Sep 2025
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-37852

OWNERSHIP DOCUMENT

Filing date: 29 Aug 2025
Reporting date: 27 Aug 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

144

144 filing

Filing date: 27 Aug 2025
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-39402

4 filing

Filing date: 09 Jun 2025
Reporting date: 05 Jun 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-37852

OWNERSHIP DOCUMENT

Filing date: 19 Mar 2025
Reporting date: 17 Mar 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

144

144 filing

Filing date: 17 Mar 2025
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-37852

OWNERSHIP DOCUMENT

Filing date: 06 Jan 2025
Reporting date: 02 Jan 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38042

FORM 4

Filing date: 20 Dec 2024
Reporting date: 18 Dec 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38042

FORM 4

Filing date: 18 Dec 2024
Reporting date: 16 Dec 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

144

144 filing

Filing date: 17 Dec 2024
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

144

144 filing

Filing date: 16 Dec 2024
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-37852

OWNERSHIP DOCUMENT

Filing date: 12 Sep 2024
Reporting date: 10 Sep 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

144

144 filing

Filing date: 10 Sep 2024
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-37852

OWNERSHIP DOCUMENT

Filing date: 26 Jul 2024
Reporting date: 24 Jul 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

144

144 filing

Filing date: 24 Jul 2024
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-41747

4 filing

Filing date: 02 Jul 2024
Reporting date: 03 Jun 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-37852

OWNERSHIP DOCUMENT

Filing date: 11 Jun 2024
Reporting date: 07 Jun 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-39402

4 filing

Filing date: 07 Jun 2024
Reporting date: 05 Jun 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

144

144 filing

Filing date: 07 Jun 2024
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-41747

4 filing

Filing date: 16 Apr 2024
Reporting date: 15 Apr 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

3 File 001-41747

3 filing

Filing date: 16 Apr 2024
Reporting date: 15 Apr 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-37852

OWNERSHIP DOCUMENT

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

144

144 filing

Filing date: 01 Mar 2024
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38042

FORM 4

Filing date: 16 Jan 2024
Reporting date: 11 Jan 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

144

144 filing

Filing date: 11 Jan 2024
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-37852

OWNERSHIP DOCUMENT

Filing date: 04 Jan 2024
Reporting date: 02 Jan 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38042

FORM 4

Filing date: 19 Dec 2023
Reporting date: 15 Dec 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-39402

4 filing

Filing date: 12 Jun 2023
Reporting date: 08 Jun 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-37852

OWNERSHIP DOCUMENT

Filing date: 18 Jan 2023
Reporting date: 16 Jan 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38042

FORM 4 SUBMISSION

Filing date: 11 Jan 2023
Reporting date: 09 Jan 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-39402

FORM 4

Filing date: 13 Jun 2022
Reporting date: 09 Jun 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-37852

OWNERSHIP DOCUMENT

Filing date: 27 May 2022
Reporting date: 26 May 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-37852

OWNERSHIP DOCUMENT

Filing date: 04 May 2022
Reporting date: 03 May 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38042

FORM 4 SUBMISSION

Filing date: 07 Jan 2022
Reporting date: 07 Jan 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38042

FORM 4 SUBMISSION

Filing date: 04 Jan 2022
Reporting date: 03 Jan 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-39402

FORM 4

Filing date: 16 Aug 2021
Reporting date: 12 Aug 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

3 File 001-39402

FORM 3

Filing date: 16 Aug 2021
Reporting date: 12 Aug 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-37852

FORM 4 SUBMISSION

Filing date: 28 May 2021
Reporting date: 27 May 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38042

FORM 4 SUBMISSION

Filing date: 05 Jan 2021
Reporting date: 01 Jan 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38042

FORM 4 SUBMISSION

Filing date: 11 Dec 2020
Reporting date: 10 Dec 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-37852

FORM 4 SUBMISSION

Filing date: 29 May 2020
Reporting date: 28 May 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38042

FORM 4 SUBMISSION

Filing date: 13 May 2020
Reporting date: 11 May 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38042

FORM 4 SUBMISSION

Filing date: 03 Jan 2020
Reporting date: 01 Jan 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-37852

FORM 4 SUBMISSION

Filing date: 11 Jun 2019
Reporting date: 07 Jun 2019
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38042

FORM 4 SUBMISSION

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

4 File 001-38042

FORM 4 SUBMISSION

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

4 File 001-37852

FORM 4 SUBMISSION

Filing date: 12 Jun 2018
Reporting date: 29 May 2018
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38042

FORM 4 SUBMISSION

Filing date: 03 Jan 2018
Reporting date: 01 Jan 2018
SEC evidence: Open document Open filing
Next action: Verify source filing

3 File 001-38042

FORM 3 SUBMISSION

Filing date: 27 Dec 2017
Reporting date: 20 Dec 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-37852

FORM 4 SUBMISSION

Filing date: 26 May 2017
Reporting date: 25 May 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-36644

FORM 4 SUBMISSION

Filing date: 01 Dec 2016
Reporting date: 29 Nov 2016
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-36644

FORM 4 SUBMISSION

Filing date: 03 Oct 2016
Reporting date: 29 Sep 2016
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-37852

FORM 4 SUBMISSION

Filing date: 15 Sep 2016
Reporting date: 13 Sep 2016
SEC evidence: Open document Open filing
Next action: Verify source filing

3 File 001-37852

FORM 3 SUBMISSION

Filing date: 10 Aug 2016
Reporting date: 10 Aug 2016
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-36644

FORM 4 SUBMISSION

Filing date: 21 Jan 2016
Reporting date: 19 Jan 2016
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-36644

FORM 4 SUBMISSION

Filing date: 16 Jul 2015
Reporting date: 14 Jul 2015
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-36644

FORM 4 SUBMISSION

Filing date: 12 Feb 2015
Reporting date: 11 Feb 2015
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-36644

FORM 4 SUBMISSION

Filing date: 18 Dec 2014
Reporting date: 16 Dec 2014
SEC evidence: Open document Open filing
Next action: Verify source filing

3 File 001-36644

FORM 3 SUBMISSION

Filing date: 01 Oct 2014
Reporting date: 01 Oct 2014
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-35993

4 filing

Filing date: 23 Jul 2013
Reporting date: 23 Jul 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-35993

4 filing

Filing date: 19 Jul 2013
Reporting date: 17 Jul 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

3 File 001-35993

3 filing

Filing date: 17 Jul 2013
Reporting date: 17 Jul 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

About this filer

William D. Waddill files with the SEC under CIK 0001553338. 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.