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

Bryan T. Durkin SEC EDGAR Filings

SEC filings, ownership reports, and insider transactions for CIK 0001341363.

Entity Type

Individual

Total Filings

Latest Filing

23 Feb 2026

Industry

n/a

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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.

Go to latest filings table Open reporting owner context

Source: SEC Forms 3/4/5

4 filed on 23 Feb 2026 for CIK 0001341363.

View Source Filing

Business address: 20 S. Wacker Drive, Chicago, IL, 60606
Top holdings (ownership): CME

Quick Takeaways

Bryan T. Durkin is an SEC filer tracked under CIK 0001341363.
70 filings are listed on this profile.
Common form coverage includes 4, 144, 5 and more.

What Changed

Latest filing: 4 filed on 23 Feb 2026.
Report period: 23 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 23 Feb 2026 for CIK 0001341363.

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 Bryan T. Durkin.

Latest source-backed update: 4 filed 23 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 23 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.

Jump to save and follow actions Open latest filings table

Latest update

What changed recently for Bryan T. Durkin

Ownership report updated

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

Update date

23 Feb 2026

Page type

Ownership filings

Latest period

23 Feb 2026

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

Open ownership filings Browse recent public updates

Filer Overview

Bryan T. Durkin has filed 70 SEC EDGAR filings since 18 Oct 2005. Common forms include 4, 144, 5, 3 and more.

Reporting owner transactions Latest 13F filings

Latest Filings

Recent SEC filings for Bryan T. Durkin with direct links to document and filing folders.

4 File 001-31553

FORM 4

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

144

144 filing

Filing date: 23 Feb 2026
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-31553

FORM 4

Filing date: 26 Jun 2025
Reporting date: 25 Jun 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

5 File 001-31553

FORM 5

Filing date: 14 Feb 2025
Reporting date: 31 Dec 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-31553

FORM 4

Filing date: 03 Sep 2024
Reporting date: 30 Aug 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

144

144 filing

Filing date: 30 Aug 2024
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-31553

FORM 4

Filing date: 26 Jun 2024
Reporting date: 25 Jun 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-31553

FORM 4

Filing date: 12 Dec 2023
Reporting date: 11 Dec 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

144

144 filing

Filing date: 12 Dec 2023
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-31553

FORM 4

Filing date: 28 Jun 2023
Reporting date: 26 Jun 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-31553

FORM 4

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

4 File 001-31553

FORM 4

Filing date: 29 Jun 2022
Reporting date: 27 Jun 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-31553

FORM 4

Filing date: 26 Jan 2022
Reporting date: 25 Jan 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-31553

FORM 4

Filing date: 09 Nov 2021
Reporting date: 08 Nov 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-31553

FORM 4

Filing date: 08 Nov 2021
Reporting date: 05 Nov 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-31553

FORM 4

Filing date: 26 Oct 2021
Reporting date: 25 Oct 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-31553

FORM 4

Filing date: 17 Sep 2021
Reporting date: 16 Sep 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-31553

FORM 4

Filing date: 16 Sep 2021
Reporting date: 14 Sep 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-31553

PRIMARY DOCUMENT

Filing date: 17 Mar 2021
Reporting date: 15 Mar 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-31553

PRIMARY DOCUMENT

Filing date: 23 Feb 2021
Reporting date: 19 Feb 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-31553

PRIMARY DOCUMENT

Filing date: 26 May 2020
Reporting date: 21 May 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-31553

PRIMARY DOCUMENT

Filing date: 17 Mar 2020
Reporting date: 15 Mar 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-31553

PRIMARY DOCUMENT

Filing date: 17 Sep 2019
Reporting date: 14 Sep 2019
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-31553

PRIMARY DOCUMENT

Filing date: 19 Mar 2019
Reporting date: 15 Mar 2019
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-31553

PRIMARY DOCUMENT

Filing date: 18 Sep 2018
Reporting date: 14 Sep 2018
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-31553

PRIMARY DOCUMENT

Filing date: 07 Aug 2018
Reporting date: 06 Aug 2018
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-31553

PRIMARY DOCUMENT

Filing date: 19 Mar 2018
Reporting date: 15 Mar 2018
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-31553

PRIMARY DOCUMENT

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

4 File 001-31553

PRIMARY DOCUMENT

Filing date: 09 Aug 2017
Reporting date: 08 Aug 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-31553

PRIMARY DOCUMENT

Filing date: 17 Mar 2017
Reporting date: 15 Mar 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-31553

PRIMARY DOCUMENT

Filing date: 29 Dec 2016
Reporting date: 28 Dec 2016
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-31553

PRIMARY DOCUMENT

Filing date: 01 Dec 2016
Reporting date: 30 Nov 2016
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-31553

PRIMARY DOCUMENT

Filing date: 01 Nov 2016
Reporting date: 31 Oct 2016
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-31553

PRIMARY DOCUMENT

Filing date: 30 Sep 2016
Reporting date: 28 Sep 2016
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-31553

PRIMARY DOCUMENT

Filing date: 19 Sep 2016
Reporting date: 15 Sep 2016
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-31553

PRIMARY DOCUMENT

Filing date: 16 Sep 2016
Reporting date: 14 Sep 2016
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-31553

PRIMARY DOCUMENT

Filing date: 08 Sep 2016
Reporting date: 06 Sep 2016
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-31553

PRIMARY DOCUMENT

Filing date: 17 Mar 2016
Reporting date: 15 Mar 2016
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-31553

PRIMARY DOCUMENT

Filing date: 24 Nov 2015
Reporting date: 20 Nov 2015
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-31553

PRIMARY DOCUMENT

Filing date: 17 Sep 2015
Reporting date: 15 Sep 2015
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-31553

PRIMARY DOCUMENT

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

4 File 001-31553

PRIMARY DOCUMENT

Filing date: 17 Mar 2015
Reporting date: 15 Mar 2015
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-31553

PRIMARY DOCUMENT

Filing date: 17 Sep 2014
Reporting date: 16 Sep 2014
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-31553

PRIMARY DOCUMENT

Filing date: 16 Sep 2014
Reporting date: 14 Sep 2014
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-31553

PRIMARY DOCUMENT

Filing date: 04 Sep 2014
Reporting date: 02 Sep 2014
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-31553

PRIMARY DOCUMENT

Filing date: 18 Mar 2014
Reporting date: 15 Mar 2014
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-31553

PRIMARY DOCUMENT

Filing date: 17 Sep 2013
Reporting date: 14 Sep 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-31553

PRIMARY DOCUMENT

Filing date: 18 Jun 2013
Reporting date: 16 Jun 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-31553

PRIMARY DOCUMENT

Filing date: 19 Mar 2013
Reporting date: 15 Mar 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-31553

PRIMARY DOCUMENT

Filing date: 12 Mar 2013
Reporting date: 08 Mar 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-31553

PRIMARY DOCUMENT

Filing date: 18 Sep 2012
Reporting date: 14 Sep 2012
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-31553

PRIMARY DOCUMENT

Filing date: 19 Sep 2011
Reporting date: 15 Sep 2011
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-31553

FORM 4 SUBMISSION

Filing date: 17 Mar 2011
Reporting date: 15 Mar 2011
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-31553

PRIMARY DOCUMENT

Filing date: 17 Sep 2010
Reporting date: 15 Sep 2010
SEC evidence: Open document Open filing
Next action: Verify source filing

About this filer

Bryan T. Durkin files with the SEC under CIK 0001341363. 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.

Bryan T. Durkin SEC EDGAR Filings

Save this filer page for the next filing cycle

Quick Takeaways

What Changed

Why This Matters

Source Evidence

Why revisit this filer page

What changed recently for Bryan T. Durkin

Filer Overview

Latest Filings

FORM 4

144 filing

FORM 4

FORM 5

FORM 4

144 filing

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FORM 4

144 filing

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FORM 4

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FORM 4

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FORM 4 SUBMISSION

PRIMARY DOCUMENT

About this filer

FAQ

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