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

Brian C. Stephenson SEC EDGAR Filings

SEC filings, ownership reports, and insider transactions for CIK 0001780030.

Entity Type

Individual

Total Filings

Latest Filing

27 Feb 2025

Industry

n/a

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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 Forms 3/4/5

4 filed on 27 Feb 2025 for CIK 0001780030.

View Source Filing

Business address: 3160 Porter Dr, Ste 250, Palo Alto, CA, 94304
Top holdings (ownership): BBIO

Quick Takeaways

Brian C. Stephenson is an SEC filer tracked under CIK 0001780030.
54 filings are listed on this profile.
Common form coverage includes 4, 144, 3.

What Changed

Latest filing: 4 filed on 27 Feb 2025.
Report period: 25 Feb 2025.

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 27 Feb 2025 for CIK 0001780030.

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 Brian C. Stephenson.

Latest source-backed update: 4 filed 27 Feb 2025
Why come back: Revisit after a new SEC filing appears to compare the updated record with prior filings.

Latest filing on record: 4 filed 27 Feb 2025.
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 Brian C. Stephenson

Ownership report updated

Latest ownership report period: 25 Feb 2025. Open the source-backed page to inspect the fresh filing or facts context.

Update date

27 Feb 2025

Page type

Ownership filings

Latest period

25 Feb 2025

Ownership context was refreshed from SEC Forms 3/4/5 filed on 27 Feb 2025.

Open ownership filings Browse recent public updates

Filer Overview

Brian C. Stephenson has filed 54 SEC EDGAR filings since 27 Jun 2019. Common forms include 4, 144, 3.

Reporting owner transactions Latest 13F filings

Latest Filings

Recent SEC filings for Brian C. Stephenson with direct links to document and filing folders.

4 File 001-38959

4

Filing date: 27 Feb 2025
Reporting date: 25 Feb 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

144

144 filing

Filing date: 25 Feb 2025
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38959

4

Filing date: 19 Feb 2025
Reporting date: 16 Feb 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

144

144 filing

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

4 File 001-38959

4

Filing date: 30 Jan 2025
Reporting date: 28 Jan 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

144

144 filing

Filing date: 28 Jan 2025
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38959

4

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

4 File 001-38959

4

Filing date: 20 Nov 2024
Reporting date: 19 Nov 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38959

4

Filing date: 19 Nov 2024
Reporting date: 16 Nov 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

144

144 filing

Filing date: 19 Nov 2024
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38959

4

Filing date: 20 Aug 2024
Reporting date: 16 Aug 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

144

144 filing

Filing date: 19 Aug 2024
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38959

4

Filing date: 17 May 2024
Reporting date: 16 May 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38959

4

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

4 File 001-38959

4

Filing date: 21 Feb 2024
Reporting date: 16 Feb 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38959

FORM 4 SUBMISSION

Filing date: 20 Nov 2023
Reporting date: 16 Nov 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

144

144 filing

Filing date: 17 Nov 2023
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38959

FORM 4 SUBMISSION

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

144

144 filing

Filing date: 17 Aug 2023
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38959

FORM 4 SUBMISSION

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

144

144 filing

Filing date: 17 May 2023
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38959

FORM 4 SUBMISSION

Filing date: 05 May 2023
Reporting date: 03 May 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38959

FORM 4 SUBMISSION

Filing date: 07 Apr 2023
Reporting date: 05 Apr 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38959

FORM 4 SUBMISSION

Filing date: 03 Mar 2023
Reporting date: 03 Mar 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38959

FORM 4 SUBMISSION

Filing date: 21 Feb 2023
Reporting date: 16 Feb 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38959

FORM 4 SUBMISSION

Filing date: 14 Feb 2023
Reporting date: 10 Feb 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38959

FORM 4 SUBMISSION

Filing date: 06 Feb 2023
Reporting date: 03 Feb 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38959

FORM 4 SUBMISSION

Filing date: 06 Jan 2023
Reporting date: 05 Jan 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38959

FORM 4 SUBMISSION

Filing date: 18 Nov 2022
Reporting date: 16 Nov 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38959

FORM 4 SUBMISSION

Filing date: 18 Aug 2022
Reporting date: 16 Aug 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38959

FORM 4 SUBMISSION

Filing date: 18 May 2022
Reporting date: 16 May 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38959

FORM 4 SUBMISSION

Filing date: 18 Mar 2022
Reporting date: 16 Mar 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38959

FORM 4 SUBMISSION

Filing date: 18 Feb 2022
Reporting date: 16 Feb 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38959

FORM 4 SUBMISSION

Filing date: 07 Dec 2021
Reporting date: 03 Dec 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38959

FORM 4 SUBMISSION

Filing date: 18 Nov 2021
Reporting date: 16 Nov 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38959

FORM 4 SUBMISSION

Filing date: 18 Aug 2021
Reporting date: 16 Aug 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38959

FORM 4 SUBMISSION

Filing date: 18 May 2021
Reporting date: 16 May 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38959

FORM 4 SUBMISSION

Filing date: 18 Feb 2021
Reporting date: 16 Feb 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38959

FORM 4 SUBMISSION

Filing date: 12 Feb 2021
Reporting date: 10 Feb 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38959

FORM 4 SUBMISSION

Filing date: 18 Nov 2020
Reporting date: 16 Nov 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38959

FORM 4 SUBMISSION

Filing date: 18 Aug 2020
Reporting date: 16 Aug 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38959

FORM 4 SUBMISSION

Filing date: 05 Aug 2020
Reporting date: 03 Aug 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38959

FORM 4 SUBMISSION

Filing date: 06 Jul 2020
Reporting date: 01 Jul 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38959

FORM 4 SUBMISSION

Filing date: 10 Jun 2020
Reporting date: 08 Jun 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38959

FORM 4 SUBMISSION

Filing date: 05 Jun 2020
Reporting date: 03 Jun 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38959

FORM 4 SUBMISSION

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

4 File 001-38959

FORM 4 SUBMISSION

Filing date: 06 May 2020
Reporting date: 05 May 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38959

FORM 4 SUBMISSION

Filing date: 05 May 2020
Reporting date: 01 May 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38959

FORM 4 SUBMISSION

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

4 File 001-38959

FORM 4 SUBMISSION

Filing date: 04 Mar 2020
Reporting date: 02 Mar 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38959

FORM 4 SUBMISSION

Filing date: 05 Feb 2020
Reporting date: 03 Feb 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38959

FORM 4 SUBMISSION

Filing date: 06 Jan 2020
Reporting date: 02 Jan 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38959

FORM 4 SUBMISSION

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

3 File 001-38959

FORM 3 SUBMISSION

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

About this filer

Brian C. Stephenson files with the SEC under CIK 0001780030. 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.

Brian C. Stephenson 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 Brian C. Stephenson

Filer Overview

Latest Filings

4

144 filing

4

144 filing

4

144 filing

4

4

4

144 filing

4

144 filing

4

4

4

FORM 4 SUBMISSION

144 filing

FORM 4 SUBMISSION

144 filing

FORM 4 SUBMISSION

144 filing

FORM 4 SUBMISSION

FORM 4 SUBMISSION

FORM 4 SUBMISSION

FORM 4 SUBMISSION

FORM 4 SUBMISSION

FORM 4 SUBMISSION

FORM 4 SUBMISSION

FORM 4 SUBMISSION

FORM 4 SUBMISSION

FORM 4 SUBMISSION

FORM 4 SUBMISSION

FORM 4 SUBMISSION

FORM 4 SUBMISSION

FORM 4 SUBMISSION

FORM 4 SUBMISSION

FORM 4 SUBMISSION

FORM 4 SUBMISSION

FORM 4 SUBMISSION

FORM 4 SUBMISSION

FORM 4 SUBMISSION

FORM 4 SUBMISSION

FORM 4 SUBMISSION

FORM 4 SUBMISSION

FORM 4 SUBMISSION

FORM 4 SUBMISSION

FORM 4 SUBMISSION

FORM 4 SUBMISSION

FORM 4 SUBMISSION

FORM 4 SUBMISSION

FORM 4 SUBMISSION

FORM 4 SUBMISSION

FORM 4 SUBMISSION

FORM 3 SUBMISSION

About this filer

FAQ

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