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

Kenneth Bate

CIK 0001210238. SEC filing timeline plus parsed ownership intelligence from 13F, 13D/G, and Forms 3/4/5 where available.

Entity Type

Individual

Total Filings

124

Latest Filing

23 Jan 2026

Industry

n/a

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Start with the summary below, then verify the strongest source-backed page for this filer.

Open 13F if you want portfolio holdings.
Open 13D/G or insider pages only when this CIK has those rows.

Open reporting owner context

Source: SEC Forms 3/4/5

4 filed on 23 Jan 2026 for CIK 0001210238.

View Source Filing

Business address: C/O Millennium Pharmaceuticals Inc, 40 Landsdowne Street, Cambridge, MA, 02139
Top holdings (ownership): MDGL and AVEO

Filer intelligence

What SEC filings say about Kenneth Bate

A compact read of parsed XML filings. 13F, 13D/G, and Forms 3/4/5 are shown separately because they answer different ownership questions.

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Quick read

Forms 3/4/5 show insider context for MDGL worth $1.29M.

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 5 rows

Officer, director, and 10% owner holdings or transactions.

Open

Forms 3/4/5 insider context

MDGL

05 Nov 2025

$1.29M

Issuer page Owner page

AVEO

19 Jan 2023

$5.6K

Issuer page Owner page

ATXS

23 Jan 2026

Issuer page Owner page

EPZM

12 Aug 2022

Issuer page Owner page

Latest update

What changed recently for Kenneth Bate

Ownership report updated

Latest ownership report period: 23 Jan 2026. Open the source-backed page to inspect the fresh filing or facts context.

Update date

23 Jan 2026

Page type

Ownership filings

Latest period

23 Jan 2026

Ownership context was refreshed from SEC Forms 3/4/5 filed on 23 Jan 2026.

Open ownership filings Browse recent public updates

Filer Overview

Kenneth Bate has filed 124 SEC EDGAR filings since 19 Dec 2002. Common forms include 4, 144, 4/A, 3 and more.

Kenneth Bate SEC filings Kenneth Bate owner filings

Latest Filings

Recent SEC filings for Kenneth Bate with direct links to document and filing folders.

4 File 001-37467

4 filing

Filing date: 23 Jan 2026
Reporting date: 23 Jan 2026
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-33277

FORM 4

Filing date: 07 Nov 2025
Reporting date: 05 Nov 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

144

144 filing

Filing date: 05 Nov 2025
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-33277

FORM 4

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

144

144 filing

Filing date: 15 Aug 2025
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-33277

FORM 4

Filing date: 24 Jun 2025
Reporting date: 20 Jun 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-37467

OWNERSHIP DOCUMENT

Filing date: 12 Jun 2025
Reporting date: 11 Jun 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-33277

FORM 4

Filing date: 28 Feb 2025
Reporting date: 27 Feb 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

144

144 filing

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

4 File 001-33277

4

Filing date: 27 Jun 2024
Reporting date: 25 Jun 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-37467

OWNERSHIP DOCUMENT

Filing date: 06 Jun 2024
Reporting date: 05 Jun 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-33277

FORM 4 SUBMISSION

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

144

144 filing

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

4 File 001-33277

FORM 4 SUBMISSION

Filing date: 20 Jun 2023
Reporting date: 15 Jun 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-37467

OWNERSHIP DOCUMENT

Filing date: 06 Jun 2023
Reporting date: 02 Jun 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-34655

FORM 4 SUBMISSION

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

4 File 001-35945

FORM 4 SUBMISSION

Filing date: 16 Aug 2022
Reporting date: 12 Aug 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

4/A File 001-37467

OWNERSHIP DOCUMENT

Filing date: 21 Jun 2022
Reporting date: 09 Jun 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-33277

FORM 4 SUBMISSION

Filing date: 21 Jun 2022
Reporting date: 16 Jun 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-37467

OWNERSHIP DOCUMENT

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

4 File 001-34655

FORM 4

Filing date: 08 Jun 2022
Reporting date: 07 Jun 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-35945

FORM 4 SUBMISSION

Filing date: 19 May 2022
Reporting date: 17 May 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-36289

FORM 4

Filing date: 02 Jul 2021
Reporting date: 01 Jul 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-33277

FORM 4 SUBMISSION

Filing date: 21 Jun 2021
Reporting date: 17 Jun 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-35945

FORM 4 SUBMISSION

Filing date: 15 Jun 2021
Reporting date: 11 Jun 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-34655

FORM 4 SUBMISSION

Filing date: 09 Jun 2021
Reporting date: 09 Jun 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-37467

OWNERSHIP DOCUMENT

Filing date: 02 Jun 2021
Reporting date: 02 Jun 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-34655

FORM 4 SUBMISSION

Filing date: 30 Jun 2020
Reporting date: 10 Jun 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-36289

FORM 4

Filing date: 19 Jun 2020
Reporting date: 18 Jun 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-33277

FORM 4 SUBMISSION

Filing date: 18 Jun 2020
Reporting date: 17 Jun 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-37467

4

Filing date: 12 Jun 2020
Reporting date: 11 Jun 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-35945

FORM 4 SUBMISSION

Filing date: 02 Jun 2020
Reporting date: 29 May 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-36289

FORM 4

Filing date: 19 Jul 2019
Reporting date: 18 Jul 2019
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-33277

FORM 4 SUBMISSION

Filing date: 01 Jul 2019
Reporting date: 27 Jun 2019
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-34655

FORM 4 SUBMISSION

Filing date: 13 Jun 2019
Reporting date: 12 Jun 2019
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-35945

FORM 4 SUBMISSION

Filing date: 07 Jun 2019
Reporting date: 31 May 2019
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-37467

FORM 4 -

Filing date: 05 Jun 2019
Reporting date: 04 Jun 2019
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-36289

FORM 4

Filing date: 25 Jun 2018
Reporting date: 21 Jun 2018
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-33277

FORM 4 -

Filing date: 21 Jun 2018
Reporting date: 19 Jun 2018
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-34655

FORM 4 SUBMISSION

Filing date: 19 Jun 2018
Reporting date: 18 Jun 2018
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-37467

FORM 4 -

Filing date: 07 Jun 2018
Reporting date: 07 Jun 2018
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-35945

FORM 4 SUBMISSION

Filing date: 31 May 2018
Reporting date: 18 May 2018
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-37467

FORM 4 -

Filing date: 28 Jul 2017
Reporting date: 27 Jul 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-33277

FORM 4 -

Filing date: 30 Jun 2017
Reporting date: 29 Jun 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-35945

FORM 4 SUBMISSION

Filing date: 26 Jun 2017
Reporting date: 22 Jun 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-34655

FORM 4 SUBMISSION

Filing date: 23 Jun 2017
Reporting date: 21 Jun 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-34186

4

Filing date: 19 Jun 2017
Reporting date: 15 Jun 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-36289

FORM 4

Filing date: 15 Jun 2017
Reporting date: 13 Jun 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

4/A File 001-33277

FORM 4/A -

Filing date: 04 Nov 2016
Reporting date: 22 Jul 2016
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-33277

FORM 4 -

Filing date: 24 Oct 2016
Reporting date: 22 Jul 2016
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-37467

4

Filing date: 05 Aug 2016
Reporting date: 03 Aug 2016
SEC evidence: Open document Open filing
Next action: Verify source filing

3 File 001-33277

FORM 3 -

Filing date: 29 Jul 2016
Reporting date: 22 Jul 2016
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-34186

FORM 4 SUBMISSION

Filing date: 17 Jun 2016
Reporting date: 16 Jun 2016
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-36289

FORM 4

Filing date: 09 Jun 2016
Reporting date: 07 Jun 2016
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-34655

FORM 4 SUBMISSION

Filing date: 31 May 2016
Reporting date: 26 May 2016
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-35945

FORM 4 SUBMISSION

Filing date: 23 May 2016
Reporting date: 19 May 2016
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-34186

FORM 4 SUBMISSION

Filing date: 21 Dec 2015
Reporting date: 17 Dec 2015
SEC evidence: Open document Open filing
Next action: Verify source filing

3 File 001-34186

FORM 3 SUBMISSION

Filing date: 21 Dec 2015
Reporting date: 17 Dec 2015
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-35945

FORM 4 SUBMISSION

Filing date: 10 Jul 2015
Reporting date: 08 Jul 2015
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-37467

4

Filing date: 30 Jun 2015
Reporting date: 30 Jun 2015
SEC evidence: Open document Open filing
Next action: Verify source filing

3 File 001-37467

3

Filing date: 24 Jun 2015
Reporting date: 24 Jun 2015
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-26727

FORM 4

Filing date: 18 Jun 2015
Reporting date: 10 Jun 2015
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-34655

FORM 4 SUBMISSION

Filing date: 01 Jun 2015
Reporting date: 28 May 2015
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-34655

FORM 4 SUBMISSION

Filing date: 06 Apr 2015
Reporting date: 02 Apr 2015
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-36289

PRIMARY DOCUMENT

Filing date: 02 Mar 2015
Reporting date: 26 Feb 2015
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-36151

4

Filing date: 21 Jan 2015
Reporting date: 21 Jan 2015
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-35945

FORM 4 SUBMISSION

Filing date: 12 Dec 2014
Reporting date: 10 Dec 2014
SEC evidence: Open document Open filing
Next action: Verify source filing

3 File 001-35945

FORM 3 SUBMISSION

Filing date: 12 Dec 2014
Reporting date: 10 Dec 2014
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-36289

PRIMARY DOCUMENT

Filing date: 15 Sep 2014
Reporting date: 11 Sep 2014
SEC evidence: Open document Open filing
Next action: Verify source filing

3 File 001-36289

PRIMARY DOCUMENT

Filing date: 15 Sep 2014
Reporting date: 11 Sep 2014
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-34655

BATE FORM 4

Filing date: 23 Jun 2014
Reporting date: 19 Jun 2014
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-26727

FORM 4

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

4 File 001-36151

PRIMARY DOCUMENT

Filing date: 05 Jun 2014
Reporting date: 03 Jun 2014
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-36151

PRIMARY DOCUMENT

Filing date: 04 Feb 2014
Reporting date: 03 Feb 2014
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-36151

PRIMARY DOCUMENT

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

4 File 001-36151

PRIMARY DOCUMENT

Filing date: 03 Dec 2013
Reporting date: 02 Dec 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-21379

PRIMARY DOCUMENT

Filing date: 14 Jun 2013
Reporting date: 12 Jun 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-21379

PRIMARY DOCUMENT

Filing date: 11 Jun 2013
Reporting date: 06 Jun 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-21379

PRIMARY DOCUMENT

Filing date: 03 Jun 2013
Reporting date: 03 Jun 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-34655

BATE FORM 4

Filing date: 30 May 2013
Reporting date: 29 May 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-26727

FORM 4

Filing date: 20 May 2013
Reporting date: 15 May 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-21379

PRIMARY DOCUMENT

Filing date: 17 May 2013
Reporting date: 15 May 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-21379

PRIMARY DOCUMENT

Filing date: 07 Mar 2013
Reporting date: 06 Mar 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-21379

PRIMARY DOCUMENT

Filing date: 11 Jun 2012
Reporting date: 06 Jun 2012
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-34655

4 filing

Filing date: 05 Jun 2012
Reporting date: 30 May 2012
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-26727

FORM 4

Filing date: 10 May 2012
Reporting date: 08 May 2012
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-21379

PRIMARY DOCUMENT

Filing date: 06 Jun 2011
Reporting date: 02 Jun 2011
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-34655

4 filing

Filing date: 03 Jun 2011
Reporting date: 01 Jun 2011
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-26727

FORM 4

Filing date: 17 May 2011
Reporting date: 12 May 2011
SEC evidence: Open document Open filing
Next action: Verify source filing

3/A File 001-34655

BATE FORM 3/A

Filing date: 15 Feb 2011
Reporting date: 11 Mar 2010
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-26727

FORM 4

Filing date: 24 Sep 2010
Reporting date: 22 Sep 2010
SEC evidence: Open document Open filing
Next action: Verify source filing

3 File 000-26727

FORM 3

Filing date: 24 Sep 2010
Reporting date: 22 Sep 2010
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-34655

4 filing

Filing date: 25 Jun 2010
Reporting date: 17 Jun 2010
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-21379

PRIMARY DOCUMENT

Filing date: 14 Jun 2010
Reporting date: 10 Jun 2010
SEC evidence: Open document Open filing
Next action: Verify source filing

3 File 001-34655

DIRECTOR - BATE - FORM 3

Filing date: 11 Mar 2010
Reporting date: 11 Mar 2010
SEC evidence: Open document Open filing
Next action: Verify source filing

About this filer

Kenneth Bate files with the SEC under CIK 0001210238. 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.