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

Garry A. Nicholson

CIK 0001640861. SEC filing timeline plus parsed ownership intelligence from 13F, 13D/G, and Forms 3/4/5 where available.

Entity Type

Individual

Total Filings

Latest Filing

22 May 2026

Industry

n/a

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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 22 May 2026 for CIK 0001640861.

View Source Filing

Business address: C/O Tesaro, Inc., 1000 Winter Street, Suite 3300, Waltham, MA, 02451

Filer intelligence

What SEC filings say about Garry A. Nicholson

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 GTHX worth $0.

SEC source mix

Counts show available parsed rows, not one combined ownership total.

XML parsed

13F portfolio No rows yet

Quarterly institutional portfolio holdings.

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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

GTHX

18 Sep 2024

Issuer page Owner page

TCRX

20 May 2026

Issuer page Owner page

DAWN

23 Apr 2026

Issuer page Owner page

NXTC

22 Jun 2023

Issuer page Owner page

Latest update

What changed recently for Garry A. Nicholson

Ownership report updated

Latest ownership report period: 20 May 2026. Open the source-backed page to inspect the fresh filing or facts context.

Update date

22 May 2026

Page type

Ownership filings

Latest period

20 May 2026

Ownership context was refreshed from SEC Forms 3/4/5 filed on 22 May 2026.

Open ownership filings Browse recent public updates

Filer Overview

Garry A. Nicholson has filed 43 SEC EDGAR filings since 15 May 2015. Common forms include 4, 3, 3/A.

Garry A. Nicholson SEC filings Garry A. Nicholson owner filings

Latest Filings

Recent SEC filings for Garry A. Nicholson with direct links to document and filing folders.

4 File 001-40603

4

Filing date: 22 May 2026
Reporting date: 20 May 2026
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-40431

4 filing

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

4 File 001-40431

4 filing

Filing date: 07 Nov 2025
Reporting date: 06 Nov 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-40603

4

Filing date: 02 Jul 2025
Reporting date: 30 Jun 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-40431

4 filing

Filing date: 04 Jun 2025
Reporting date: 02 Jun 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38096

4

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

4 File 001-38096

PRIMARY DOCUMENT

Filing date: 14 Jun 2024
Reporting date: 13 Jun 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-40603

4

Filing date: 14 Jun 2024
Reporting date: 12 Jun 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

3 File 001-40603

3

Filing date: 14 Jun 2024
Reporting date: 12 Jun 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-40431

4 filing

Filing date: 28 May 2024
Reporting date: 23 May 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-40431

FORM 4 SUBMISSION

Filing date: 26 Jun 2023
Reporting date: 22 Jun 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38905

4 filing

Filing date: 23 Jun 2023
Reporting date: 22 Jun 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38096

PRIMARY DOCUMENT

Filing date: 16 Jun 2023
Reporting date: 15 Jun 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-40431

FORM 4 SUBMISSION

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

3 File 001-40431

FORM 3 SUBMISSION

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

4 File 001-38871

FORM 4 SUBMISSION

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

4 File 001-38905

FORM 4

Filing date: 24 Jun 2022
Reporting date: 23 Jun 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38096

PRIMARY DOCUMENT

Filing date: 24 Jun 2022
Reporting date: 23 Jun 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38905

FORM 4

Filing date: 28 Jun 2021
Reporting date: 24 Jun 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38096

PRIMARY DOCUMENT

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

4 File 001-38871

FORM 4 SUBMISSION

Filing date: 04 Jun 2021
Reporting date: 02 Jun 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-36070

FORM 4 SUBMISSION

Filing date: 19 Apr 2021
Reporting date: 16 Apr 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38871

FORM 4 SUBMISSION

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

4 File 001-38905

PRIMARY DOCUMENT

Filing date: 15 Jun 2020
Reporting date: 11 Jun 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38096

FORM 4 SUBMISSION

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

4 File 001-36070

FORM 4 SUBMISSION

Filing date: 15 May 2020
Reporting date: 14 May 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

3 File 001-38905

PRIMARY DOCUMENT

Filing date: 01 Apr 2020
Reporting date: 25 Mar 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38871

FORM 4 SUBMISSION

Filing date: 23 Jan 2020
Reporting date: 22 Jan 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

3 File 001-38871

FORM 3 SUBMISSION

Filing date: 23 Jan 2020
Reporting date: 22 Jan 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38096

FORM 4 SUBMISSION

Filing date: 14 Jun 2019
Reporting date: 12 Jun 2019
SEC evidence: Open document Open filing
Next action: Verify source filing

3/A File 001-36070

FORM 3/A SUBMISSION

Filing date: 12 Jun 2019
Reporting date: 10 May 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-36070

FORM 4 SUBMISSION

Filing date: 12 Jun 2019
Reporting date: 10 Jun 2019
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-35587

PRIMARY DOCUMENT

Filing date: 22 Jan 2019
Reporting date: 22 Jan 2019
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38096

FORM 4 SUBMISSION

Filing date: 13 Sep 2018
Reporting date: 12 Sep 2018
SEC evidence: Open document Open filing
Next action: Verify source filing

3 File 001-38096

FORM 3 SUBMISSION

Filing date: 13 Sep 2018
Reporting date: 12 Sep 2018
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-35587

4

Filing date: 05 Jun 2018
Reporting date: 01 Jun 2018
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-36070

FORM 4 SUBMISSION

Filing date: 14 May 2018
Reporting date: 10 May 2018
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-35587

4

Filing date: 05 Jun 2017
Reporting date: 01 Jun 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-36070

FORM 4 SUBMISSION

Filing date: 12 May 2017
Reporting date: 10 May 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

3 File 001-36070

FORM 3 SUBMISSION

Filing date: 12 May 2017
Reporting date: 10 May 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-35587

4

Filing date: 03 Jun 2016
Reporting date: 01 Jun 2016
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-35587

4

Filing date: 03 Jun 2015
Reporting date: 01 Jun 2015
SEC evidence: Open document Open filing
Next action: Verify source filing

3 File 001-35587

3

Filing date: 15 May 2015
Reporting date: 14 May 2015
SEC evidence: Open document Open filing
Next action: Verify source filing

About this filer

Garry A. Nicholson files with the SEC under CIK 0001640861. 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.

Garry A. Nicholson

Follow future filing-backed changes

What SEC filings say about Garry A. Nicholson

Quick read

SEC source mix

Forms 3/4/5 insider context

What changed recently for Garry A. Nicholson

Filer Overview

Latest Filings

4

4 filing

4 filing

4

4 filing

4

PRIMARY DOCUMENT

4

3

4 filing

FORM 4 SUBMISSION

4 filing

PRIMARY DOCUMENT

FORM 4 SUBMISSION

FORM 3 SUBMISSION

FORM 4 SUBMISSION

FORM 4

PRIMARY DOCUMENT

FORM 4

PRIMARY DOCUMENT

FORM 4 SUBMISSION

FORM 4 SUBMISSION

FORM 4 SUBMISSION

PRIMARY DOCUMENT

FORM 4 SUBMISSION

FORM 4 SUBMISSION

PRIMARY DOCUMENT

FORM 4 SUBMISSION

FORM 3 SUBMISSION

FORM 4 SUBMISSION

FORM 3/A SUBMISSION

FORM 4 SUBMISSION

PRIMARY DOCUMENT

FORM 4 SUBMISSION

FORM 3 SUBMISSION

4

FORM 4 SUBMISSION

4

FORM 4 SUBMISSION

FORM 3 SUBMISSION

4

4

3

About this filer

FAQ

Related pages for Garry A. Nicholson