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

Michael Gregory O'Hara SEC EDGAR Filings

SEC filings, ownership reports, and insider transactions for CIK 0001295598.

Entity Type

Individual

Total Filings

Latest Filing

12 May 2026

Industry

n/a

Save this filer page for the next filing cycle

Keep this page in your research queue, then return to compare new filings with prior context.

Save and revisit

Save this filer page

Create a free account to keep this page in your watchlists. After verification, we will save it automatically and open your saved research list.

Create free account and save this filer Already have an account? Sign in and save it

Best next steps

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 Form 13F

13F-NT filed on 12 May 2026 for CIK 0001295598.

View Source Filing

Business address: C/O Certares Management Llc, 350 Madison Avenue, 8 Th Floor, New York, NY, 10017
Top holdings (ownership): GBTG and TRIP

Quick Takeaways

Michael Gregory O'Hara is an SEC filer tracked under CIK 0001295598.
54 filings are listed on this profile.
Common form coverage includes 13F-NT, 4/A, N-PX and more.

What Changed

Latest filing: 13F-NT filed on 12 May 2026.
Report period: 31 Mar 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 Form 13F

13F-NT filed on 12 May 2026 for CIK 0001295598.

View Source Filing

Return Loop

Why revisit this filer page

A newly filed 13F-NT can change the filing history, ownership context, or next research path for Michael Gregory O'Hara.

Latest source-backed update: 13F-NT filed 12 May 2026
Why come back: Revisit after a new SEC filing appears to compare the updated record with prior filings.

Latest filing on record: 13F-NT filed 12 May 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 Michael Gregory O'Hara

New filing available

Latest 13F period: Q1 2026. Open the source-backed page to inspect the fresh filing or facts context.

Update date

12 May 2026

Page type

Filer profile

Latest period

Q1 2026

Institutional portfolio context was refreshed from a 13F filing filed on 12 May 2026.

Open filer profile Browse recent public updates

Filer Overview

Michael Gregory O'Hara has filed 54 SEC EDGAR filings since 30 Mar 2020. Common forms include 13F-NT, 4/A, N-PX, 4 and more.

Reporting owner transactions Latest 13F filings

Latest Filings

Recent SEC filings for Michael Gregory O'Hara with direct links to document and filing folders.

13F-NT File 028-22347

13F-NT filing

Filing date: 12 May 2026
Reporting date: 31 Mar 2026
SEC evidence: Open document Open filing
Next action: Verify source filing

13F-NT File 028-22347

13F-NT filing

Filing date: 11 Feb 2026
Reporting date: 31 Dec 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

13F-NT File 028-22347

13F-NT filing

Filing date: 10 Nov 2025
Reporting date: 30 Sep 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4/A File 001-35362

4/A

Filing date: 09 Sep 2025
Reporting date: 18 Jun 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

N-PX File 028-22347

N-PX filing

Filing date: 29 Aug 2025
Reporting date: 30 Jun 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

13F-NT File 028-22347

13F-NT filing

Filing date: 08 Aug 2025
Reporting date: 30 Jun 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-35362

PRIMARY DOCUMENT

Filing date: 20 Jun 2025
Reporting date: 18 Jun 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-39576

PRIMARY DOCUMENT

Filing date: 13 Jun 2025
Reporting date: 11 Jun 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

13F-NT File 028-22347

13F-NT filing

Filing date: 12 May 2025
Reporting date: 31 Mar 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-35362

4

Filing date: 01 May 2025
Reporting date: 29 Apr 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-39576

4

Filing date: 10 Mar 2025
Reporting date: 06 Mar 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

13F-NT File 028-22347

13F-NT filing

Filing date: 11 Feb 2025
Reporting date: 31 Dec 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-39576

4

Filing date: 21 Nov 2024
Reporting date: 19 Nov 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

13F-NT File 028-22347

13F-NT filing

Filing date: 07 Nov 2024
Reporting date: 30 Sep 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

N-PX File 028-22347

N-PX filing

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

13F-NT File 028-22347

13F-NT filing

Filing date: 07 Aug 2024
Reporting date: 30 Jun 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

4/A File 001-35362

4/A

Filing date: 20 Jun 2024
Reporting date: 11 Jun 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-35362

4

Filing date: 13 Jun 2024
Reporting date: 06 Jun 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-39576

4 filing

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

13F-NT File 028-22347

13F-NT filing

Filing date: 08 May 2024
Reporting date: 31 Mar 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

13F-NT File 028-22347

13F-NT filing

Filing date: 08 Feb 2024
Reporting date: 31 Dec 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

3 File 001-37665

FORM 3

Filing date: 24 Jan 2024
Reporting date: 19 Jan 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-39576

FORM 4 SUBMISSION

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

13F-NT File 028-22347

13F-NT filing

Filing date: 13 Nov 2023
Reporting date: 30 Sep 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

13F-NT File 028-22347

13F-NT filing

Filing date: 07 Aug 2023
Reporting date: 30 Jun 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-35362

FORM 4 SUBMISSION

Filing date: 08 Jun 2023
Reporting date: 06 Jun 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-39576

FORM 4 SUBMISSION

Filing date: 07 Jun 2023
Reporting date: 06 Jun 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

13F-NT File 028-22347

13F-NT filing

Filing date: 08 May 2023
Reporting date: 31 Mar 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

4/A File 001-35362

FORM 4/A SUBMISSION

Filing date: 16 Mar 2023
Reporting date: 14 Jun 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

13F-NT File 028-22347

13F-NT filing

Filing date: 09 Feb 2023
Reporting date: 31 Dec 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-36603

4 filing

Filing date: 14 Dec 2022
Reporting date: 12 Dec 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-36603

4 filing

Filing date: 09 Dec 2022
Reporting date: 07 Dec 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

13F-NT File 028-22347

13F-NT filing

Filing date: 08 Nov 2022
Reporting date: 30 Sep 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-39576

FORM 4 SUBMISSION

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

13F-NT File 028-22347

13F-NT filing

Filing date: 12 Aug 2022
Reporting date: 30 Jun 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-35362

FORM 4 SUBMISSION

Filing date: 16 Jun 2022
Reporting date: 14 Jun 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

3 File 001-39576

FORM 3 SUBMISSION

Filing date: 01 Jun 2022
Reporting date: 27 May 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

13F-NT File 028-22347

13F-NT filing

Filing date: 13 May 2022
Reporting date: 31 Mar 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

13F-NT File 028-22347

13F-NT filing

Filing date: 02 Mar 2022
Reporting date: 31 Dec 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-36603

4 filing

Filing date: 09 Dec 2021
Reporting date: 07 Dec 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

3 File 001-37665

FORM 3

Filing date: 12 Jul 2021
Reporting date: 30 Jun 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-35362

FORM 4 SUBMISSION

Filing date: 10 Jun 2021
Reporting date: 08 Jun 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4/A File 001-35362

FORM 4/A SUBMISSION

Filing date: 10 Jun 2021
Reporting date: 29 Mar 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-36603

4 filing

Filing date: 08 Apr 2021
Reporting date: 06 Apr 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-35362

FORM 4 SUBMISSION

Filing date: 31 Mar 2021
Reporting date: 29 Mar 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-36603

4 filing

Filing date: 31 Mar 2021
Reporting date: 29 Mar 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-36603

4 filing

Filing date: 14 Dec 2020
Reporting date: 10 Dec 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-36603

4 filing

Filing date: 09 Dec 2020
Reporting date: 07 Dec 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

3 File 001-39424

OWNERSHIP DOCUMENT

Filing date: 06 Aug 2020
Reporting date: 04 Aug 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-35362

FORM 4 SUBMISSION

Filing date: 11 Jun 2020
Reporting date: 09 Jun 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-35362

FORM 4 SUBMISSION

Filing date: 31 Mar 2020
Reporting date: 27 Mar 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

3 File 001-35362

FORM 3 SUBMISSION

Filing date: 31 Mar 2020
Reporting date: 27 Mar 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-36603

4 filing

Filing date: 30 Mar 2020
Reporting date: 26 Mar 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

3 File 001-36603

3 filing

Filing date: 30 Mar 2020
Reporting date: 26 Mar 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

About this filer

Michael Gregory O'Hara files with the SEC under CIK 0001295598. 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.

Michael Gregory O'Hara 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 Michael Gregory O'Hara

Filer Overview

Latest Filings

13F-NT filing

13F-NT filing

13F-NT filing

4/A

N-PX filing

13F-NT filing

PRIMARY DOCUMENT

PRIMARY DOCUMENT

13F-NT filing

4

4

13F-NT filing

4

13F-NT filing

N-PX filing

13F-NT filing

4/A

4

4 filing

13F-NT filing

13F-NT filing

FORM 3

FORM 4 SUBMISSION

13F-NT filing

13F-NT filing

FORM 4 SUBMISSION

FORM 4 SUBMISSION

13F-NT filing

FORM 4/A SUBMISSION

13F-NT filing

4 filing

4 filing

13F-NT filing

FORM 4 SUBMISSION

13F-NT filing

FORM 4 SUBMISSION

FORM 3 SUBMISSION

13F-NT filing

13F-NT filing

4 filing

FORM 3

FORM 4 SUBMISSION

FORM 4/A SUBMISSION

4 filing

FORM 4 SUBMISSION

4 filing

4 filing

4 filing

OWNERSHIP DOCUMENT

FORM 4 SUBMISSION

FORM 4 SUBMISSION

FORM 3 SUBMISSION

4 filing

3 filing

About this filer

FAQ

Related pages