A Central Index Key (CIK) is a unique identifier assigned by the SEC to each filer.

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New filings appear as the SEC updates EDGAR, and older records can vary by availability.

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Updates follow new EDGAR submissions and periodic data refreshes.

Filer Snapshot

Margaret McLoughlin

CIK 0001770823. 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

21 Jan 2026

Industry

n/a

Filing-backed research brief

Start with the SEC data that changes for this CIK

Latest signal: Forms 3/4/5 owner position for QNCX. Each card links back to the PortfolioSavvy page where the filing evidence is closest.

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Latest 13F portfolio

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Largest parsed holding

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13D/G large stake

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No recent parsed 13D/G stake row for this CIK.

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Insider / owner context

QNCX

02 Jan 2026

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Source: SEC Forms 3/4/5

4 filed on 21 Jan 2026 for CIK 0001770823.

View Source Filing

Business address: C/O Cortexyme, Inc., 269 East Grand Ave., South San Francisco, CA, 94080

Filer intelligence

What SEC filings say about Margaret McLoughlin

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 QNCX.

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.

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Forms 3/4/5 1 rows

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

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Forms 3/4/5 insider context

QNCX

02 Jan 2026

Issuer page Owner page

Latest update

What changed recently for Margaret McLoughlin

Ownership report updated

Latest ownership report period: 02 Jan 2026. Open the source-backed page to inspect the fresh filing or facts context.

Update date

21 Jan 2026

Page type

Ownership filings

Latest period

02 Jan 2026

Ownership context was refreshed from SEC Forms 3/4/5 filed on 21 Jan 2026.

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SEC filing record

CIK 0001770823 filing coverage

Start with this filing record, then use the linked ownership pages when parsed 13F, 13D/G, Forms 3/4/5, or facts data exists for this CIK.

SEC filings

First seen

08 May 2019

Latest filing

21 Jan 2026

Entity

Individual

Observed form types

4 3

CIK-linked evidence first

Margaret McLoughlin SEC filings Margaret McLoughlin owner filings Open SEC filing index

Latest Filings

Showing the latest 12 of 15 SEC filings for Margaret McLoughlin.

Open full filing history

4 File 001-38890

FORM 4

Filing date: 21 Jan 2026
Reporting date: 02 Jan 2026
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38890

4 filing

Filing date: 06 Jun 2025
Reporting date: 04 Jun 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38890

4 filing

Filing date: 08 Jan 2025
Reporting date: 02 Jan 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38890

4 filing

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

4 File 001-38890

FORM 4 SUBMISSION

Filing date: 09 Aug 2023
Reporting date: 08 Aug 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38890

FORM 4 SUBMISSION

Filing date: 26 May 2023
Reporting date: 24 May 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38890

FORM 4 SUBMISSION

Filing date: 09 Jun 2022
Reporting date: 08 Jun 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38890

FORM 4 SUBMISSION

Filing date: 12 Oct 2021
Reporting date: 08 Oct 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38890

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 001-38890

FORM 4 SUBMISSION

Filing date: 29 Jun 2021
Reporting date: 28 Jun 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38890

FORM 4 SUBMISSION

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

4 File 001-38890

FORM 4 SUBMISSION

Filing date: 09 Jun 2020
Reporting date: 08 Jun 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

Margaret McLoughlin

Start with the SEC data that changes for this CIK

What SEC filings say about Margaret McLoughlin

Quick read

SEC source mix

Forms 3/4/5 insider context

What changed recently for Margaret McLoughlin

CIK 0001770823 filing coverage

Latest Filings

FORM 4

4 filing

4 filing

4 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

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