Form D · Venture Capital Fund

Westlake BioPartners Opportunity Fund I, L.P.

Westlake Village, CA · CIK 0001811946

Offering snapshot reported Jun 14, 2021 · SEC filing

Reported sold: $100M
Investors reported: 25
Minimum accepted: $0
First sale: Jul 7, 2020

What changed?

Latest filing versus its linked predecessor, where available.

Reported investors0 → 25

Filing history

Scroll to see all columns →

Filed	Filing type	Reported sold	Change vs linked filing	Investors	Source
Jun 14, 2021	Amendment	$100,000,000	No comparison	25	SEC filing
Jul 6, 2020	Initial	Yet to sell	No comparison	0	SEC filing

Offering details

Securities: Pooled investment fund
Exemptions: 06b, 3C, 3C.7
Duration over one year: No
Business combination: No

Sales commissions: $0
Finders' fees: $0
Form D file number: 021-370270

Source: Form D, filed Jun 14, 2021. Minimum accepted may differ from a standard advertised minimum.

Fund connections

The linked fund shows its most recently reported ADV details.

Matched by reported Form D file number

WESTLAKE BIOPARTNERS OPPORTUNITY FUND I, L.P.

Investment adviser: WESTLAKE BIOPARTNERS, LLC

Gross asset value: $114M
Beneficial owners: 25
ADV minimum commitment: $0

Reported in Form ADV on Mar 30, 2026. Fund assets and beneficial owners measure different things from Form D sales and investors.

Service providers

Fund administrator STANDISH MANAGEMENT, LLC SANTA MONICA, California, United States Investor statements: Yes (provided to all investors) Related to adviser: No

Auditor KPMG LLP SAN FRANCISCO, California, United States

Custodian GOLDMAN SACHS FUNDS GROUP CHICAGO, Illinois, United States Related to adviser: No

Custodian MERRILL LYNCH, PIERCE, FENNER & SMITH SAN FRANCISCO, California, United States Related to adviser: No

Custodian MORGAN STANLEY SMITH BARNEY BOSTON, Massachusetts, United States Related to adviser: No

Custodian SILICON VALLEY BANK, A DIVISION OF FIRST CITIZENS BANK SANTA CLARA, California, United States Related to adviser: No

Provider details

Annual audit: Yes
Prime brokers: No
Custodians: Yes
Administrator other than the adviser: Yes
External marketing: No

KPMG LLP
PCAOB 185

Filing source

Form ADV 2055857 · Mar 30, 2026 · Schedule D 7.B.(1), fund 805-9369521867

Official IAPD profile (latest public filing). Values are the most recently reported in our imported data; the public profile may show a newer filing.

People & organizations

Current and past Form D appearances. These existing records do not establish a person's current role or uniquely identify them across issuers.

People and organizations reported in Form D filings
Name	Reported role
Peter Calveley	Executive
Sean Harper	Director
Scott Ryles	Executive
Beth Seidenberg	Director
N/A Westlake Bio Partners Opportunity Gp I, Llc	Director

Issuer details

Industry: Pooled Investment Fund (See others in industry)

Address:

3075 Townsgate Road, Suite 140
Westlake Village, CA, 91361