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

Frazier Life Sciences IX, L.P.

CIK 0001720320. 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

27 Jan 2026

Industry

n/a

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Start with the summary below, then verify the strongest source-backed page for this filer.

Open 13F if you want portfolio holdings.
Open 13D/G or insider pages only when this CIK has those rows.

Go to latest filings table

Source: SEC Schedule 13D/G

SCHEDULE 13D/A filed on 27 Jan 2026 for CIK 0001720320.

View Source Filing

Business address: 601 Union Street, Suite 3200, Seattle, WA, 98101
Top holdings (Schedule 13D): MIRM
State of incorporation: DE
Fiscal year end: 31 December

Filer intelligence

What SEC filings say about Frazier Life Sciences IX, L.P.

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

1 recent 13D/G stake row found; top row is MIRM at 6.8% ownership.

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 1 rows

Beneficial ownership and large-stake disclosures.

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Forms 3/4/5 No rows yet

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

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13D/G large-stake context

MIRM

23 Jan 2026 · Common Stock, par value $0.0001 per share

6.8%

Issuer page 13D/G history

Latest update

What changed recently for Frazier Life Sciences IX, L.P.

New filing available

Latest Schedule 13D/G period: 23 Jan 2026. Open the source-backed page to inspect the fresh filing or facts context.

Update date

27 Jan 2026

Page type

Filer profile

Latest period

23 Jan 2026

Schedule 13D/G context is visible from filings filed on 27 Jan 2026.

Open filer profile Browse recent public updates

Filer Overview

Frazier Life Sciences IX, L.P. has filed 35 SEC EDGAR filings since 01 Nov 2017. Common forms include SCHEDULE 13D/A, SC 13G/A, SC 13D/A, SC 13G and more.

Frazier Life Sciences IX, L.P. SEC filings Frazier Life Sciences IX, L.P. 13D/G history

Latest Filings

Recent SEC filings for Frazier Life Sciences IX, L.P. with direct links to document and filing folders.

SCHEDULE 13D/A

SCHEDULE 13D/A filing

Filing date: 27 Jan 2026
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SCHEDULE 13D/A

SCHEDULE 13D/A filing

Filing date: 04 Nov 2025
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SCHEDULE 13D/A

SCHEDULE 13D/A filing

Filing date: 20 Aug 2025
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G/A

Filing date: 06 Nov 2024
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13D/A

Filing date: 05 Sep 2023
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13D/A

Filing date: 15 Jun 2023
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13D/A

Filing date: 14 Apr 2023
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13D/A

Filing date: 26 Sep 2022
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13D/A

Filing date: 16 Aug 2022
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13D/A

Filing date: 15 Aug 2022
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13D/A

Filing date: 11 Aug 2022
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G/A

Filing date: 28 Jan 2022
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G/A

Filing date: 04 Feb 2021
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13D/A

Filing date: 27 Jan 2021
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13D/A

SCHEDULE 13D - AMENDMENT NO. 2

Filing date: 23 Dec 2020
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13D/A

SC 13D - AMENDMENT NO. 2

Filing date: 18 Dec 2020
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G

SCHEDULE 13G

Filing date: 23 Oct 2020
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-39614

FORM 4 SUBMISSION

Filing date: 20 Oct 2020
Reporting date: 20 Oct 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

3 File 001-39614

FORM 3 SUBMISSION

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

SC 13D/A

Filing date: 17 Jun 2020
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-39094

FORM 4 SUBMISSION

Filing date: 16 Jun 2020
Reporting date: 12 Jun 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13D/A

SC 13D/A #1

Filing date: 29 Apr 2020
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13D

SCHEDULE 13D

Filing date: 09 Mar 2020
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-39231

FORM 4 SUBMISSION

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

3 File 001-39231

FORM 3 SUBMISSION

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

SC 13G/A

AMENDMENT NO. 2 TO SCHEDULE 13G

Filing date: 13 Feb 2020
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13D

SCHEDULE 13D

Filing date: 06 Nov 2019
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-39094

FORM 4 SUBMISSION

Filing date: 30 Oct 2019
Reporting date: 29 Oct 2019
SEC evidence: Open document Open filing
Next action: Verify source filing

3 File 001-39094

FORM 3 SUBMISSION

Filing date: 24 Oct 2019
Reporting date: 24 Oct 2019
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13D

SCHEDULE 13D

Filing date: 26 Jul 2019
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38981

FORM 4 SUBMISSION

Filing date: 24 Jul 2019
Reporting date: 22 Jul 2019
SEC evidence: Open document Open filing
Next action: Verify source filing

3 File 001-38981

FORM 3 SUBMISSION

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

SC 13G/A

AMENDMENT NO.1 TO SCHEDULE 13G

Filing date: 14 Feb 2019
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G

Filing date: 27 Aug 2018
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

D File 021-297918

D filing

Filing date: 01 Nov 2017
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

About this filer

Frazier Life Sciences IX, L.P. files with the SEC under CIK 0001720320. 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.

Frazier Life Sciences IX, L.P.

Follow future filing-backed changes

What SEC filings say about Frazier Life Sciences IX, L.P.

Quick read

SEC source mix

13D/G large-stake context

What changed recently for Frazier Life Sciences IX, L.P.

Filer Overview

Latest Filings

SCHEDULE 13D/A filing

SCHEDULE 13D/A filing

SCHEDULE 13D/A filing

SC 13G/A

SC 13D/A

SC 13D/A

SC 13D/A

SC 13D/A

SC 13D/A

SC 13D/A

SC 13D/A

SC 13G/A

SC 13G/A

SC 13D/A

SCHEDULE 13D - AMENDMENT NO. 2

SC 13D - AMENDMENT NO. 2

SCHEDULE 13G

FORM 4 SUBMISSION

FORM 3 SUBMISSION

SC 13D/A

FORM 4 SUBMISSION

SC 13D/A #1

SCHEDULE 13D

FORM 4 SUBMISSION

FORM 3 SUBMISSION

AMENDMENT NO. 2 TO SCHEDULE 13G

SCHEDULE 13D

FORM 4 SUBMISSION

FORM 3 SUBMISSION

SCHEDULE 13D

FORM 4 SUBMISSION

FORM 3 SUBMISSION

AMENDMENT NO.1 TO SCHEDULE 13G

SC 13G

D filing

About this filer

FAQ

Related pages for Frazier Life Sciences IX, L.P.