Form D · Investing

Route One Offshore Master Fund, L.P.

Grand Cayman, E9 · CIK 0001502996

Offering snapshot reported Jul 21, 2026 · SEC filing

Reported sold: $1.03B
Investors reported: 10
Minimum accepted: $1K
First sale: Feb 1, 2011

Fundraising history

Reported sold

Dates are filing dates, not cash receipt dates. Decreases are reported revisions, not evidence of withdrawals. Separate offering histories are not added together.

What changed?

Latest filing versus its linked predecessor, where available.

Reported sold$387,727,644 → $1,029,959,861

Filing history

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Filed	Filing type	Reported sold	Change vs linked filing	Investors	Source
Jul 21, 2026	Amendment	$1,029,959,861	$642,232,217vs Aug 1, 2025	10	SEC filing
Aug 1, 2025	Amendment	$387,727,644	$72,720,611vs Jun 14, 2024	10	SEC filing
Jun 14, 2024	Amendment	$315,007,033	$99,836,129vs Jul 6, 2023	10	SEC filing
Jul 6, 2023	Amendment	$215,170,904	$10,045,104vs Jul 7, 2022	9	SEC filing
Jul 7, 2022	Amendment	$205,125,800	$0vs Jul 21, 2021	9	SEC filing
Jul 21, 2021	Amendment	$205,125,800	No comparison	Not reported	SEC filing
Jul 31, 2020	Amendment	$100,685,000	$850,000vs Aug 7, 2019	7	SEC filing
Aug 7, 2019	Amendment	$99,835,000	$0vs Jan 12, 2018	6	SEC filing
Jan 12, 2018	Amendment	$99,835,000	$0vs Jan 11, 2017	6	SEC filing
Jan 11, 2017	Amendment	$99,835,000	$0vs Jan 12, 2016	6	SEC filing
Jan 12, 2016	Amendment	$99,835,000	$0vs Jan 13, 2015	6	SEC filing
Jan 13, 2015	Amendment	$99,835,000	$0vs Feb 3, 2014	6	SEC filing
Feb 3, 2014	Amendment	$99,835,000	$2,000,000vs Jan 11, 2013	6	SEC filing
Jan 11, 2013	Amendment	$97,835,000	$0vs Jan 13, 2012	6	SEC filing
Jan 13, 2012	Amendment	$97,835,000	No comparison	6	SEC filing
Oct 8, 2010	Initial	Yet to sell	No comparison	0	SEC filing

Offering details

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

Sales commissions: $0 (estimated)
Finders' fees: $0 (estimated)
Form D file number: 021-148769

Limited Partner Interests

Source: Form D, filed Jul 21, 2026. Minimum accepted may differ from a standard advertised minimum.

Fund connections

Each card uses that adviser's latest imported filing. Filing dates can differ; these disclosures do not confirm a current relationship.

Matched by reported Form D file number

ROUTE ONE OFFSHORE MASTER FUND, L.P.

Investment adviser: ROUTE ONE INVESTMENT COMPANY, L.P.

Gross asset value: $3.07B
Beneficial owners: 44
ADV minimum commitment: $10M

Reported in Form ADV on Mar 25, 2026. Fund assets and beneficial owners measure different things from Form D sales and investors.

Service providers

Fund administrator CITCO FUND SERVICES (CAYMAN ISLANDS) LIMITED GRAND CAYMAN, Cayman Islands Investor statements: Yes (provided to all investors) Related to adviser: No Other funds reporting this name →

Auditor ERNST & YOUNG LLP SAN FRANCISCO, California, United States Other funds reporting this name →

Auditor ERNST & YOUNG LTD. GEORGE TOWN, Cayman Islands Other funds reporting this name →

Custodian JPMORGAN CHASE BANK, N.A. SAN FRANCISCO, California, United States Related to adviser: No Other funds reporting this name →

Custodian MORGAN STANLEY & CO. LLC NEW YORK, New York, United States Related to adviser: No Other funds reporting this name →

Custodian UBS SECURITIES LLC NEW YORK, New York, United States Related to adviser: No Other funds reporting this name →

See filing for more → Showing the first 6 providers by role and name. IAPD may show a newer filing.

Provider details

Annual audit: Yes
Prime brokers: Yes
Custodians: Yes
Administrator other than the adviser: Yes
External marketing: Yes

ERNST & YOUNG LLP
PCAOB 42

ERNST & YOUNG LTD.
PCAOB 1655

MORGAN STANLEY & CO. LLC
SEC 8-15869

UBS SECURITIES LLC
SEC 8-22651

Fund asset history · 5 annual observations

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Fiscal year	Gross assets	Beneficial owners	ADV filed
2021	$4,031,009,109	66	Mar 21, 2022
2022	$3,163,450,503	57	Mar 24, 2023
2023	$3,320,500,302	55	Mar 26, 2024
2024	$3,334,458,652	49	Mar 24, 2025
2025	$3,072,964,033	44	Mar 25, 2026

Filing source

Form ADV 2066532 · Mar 25, 2026 · Schedule D 7.B.(1), fund 805-3809196049

Reported by ROUTE ONE INVESTMENT COMPANY, L.P. (CRD 156398).

Annual Updating Amendment for Registered Adviser · fiscal year 2025.

Official IAPD profile (latest public filing). Historical values on this page come from the SEC/IAPD filing archive; 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
Sean Barron	Executive
William F. Duhamel	Executive
Weiyi (Kathy) Huang	Executive
Zaeed Kalsheker	Executive
Saskia Mallach	Executive
Jason E. Moment	Executive
Ashish H. Pant	Executive
N/A Route One Investment Company, Llc	Executive
Richard H. Voon	Executive

Issuer details

Industry: Investing (See others in industry)

Address:

C/O Citco Fund Services, 89 Nexus Way Camana Bay
Grand Cayman, E9, KY1-1205
Phone: (345) 949-3977