Form D · Hedge Fund

Master Portfolio (A), L.P.

Boston, MA · CIK 0001488800

Offering snapshot reported Jan 21, 2026 · SEC filing

Reported sold
$1.6B
Indefinite offering
Investors reported
Not reported
Form D · investor count
Minimum accepted
Not reported
Reported outside-investor minimum
First sale
Not reported
As reported in this filing

What changed?

Latest filing versus its linked predecessor, where available.

No comparable changes in the displayed metrics.

Filing history

Scroll to see all columns →

FiledFiling typeReported soldChange vs linked filingInvestorsSource
Jan 21, 2026Amendment$1,602,378,350No comparisonNot reportedSEC filing
Feb 7, 2025Amendment$1,343,279,007$58,881,129vs Feb 9, 2024215SEC filing
Feb 9, 2024Amendment$1,284,397,878$27,772,675vs Feb 10, 2023210SEC filing
Feb 10, 2023Amendment$1,256,625,203$5,718,256vs Jun 13, 2022202SEC filing
Jun 13, 2022Amendment$1,250,906,947$35,602,813vs Feb 10, 2022202SEC filing
Feb 10, 2022Amendment$1,215,304,134$11,864,000vs Dec 14, 2021198SEC filing
Dec 14, 2021Amendment$1,203,440,134$32,125,000vs Oct 14, 2021195SEC filing
Oct 14, 2021Amendment$1,171,315,134$129,209,081vs Jun 11, 2021193SEC filing
Jun 11, 2021Amendment$1,042,106,053No comparisonNot reportedSEC filing
Mar 10, 2021Amendment$1,018,519,119$16,550,000vs Feb 10, 2021177SEC filing
Feb 10, 2021Amendment$1,001,969,119$70,413,460vs Apr 10, 2020174SEC filing
Apr 10, 2020Amendment$931,555,659$63,383,526vs Apr 17, 2019163SEC filing
Apr 17, 2019Amendment$868,172,133$176,549,389vs Apr 18, 2018151SEC filing
Apr 18, 2018Amendment$691,622,744$221,754,328vs Apr 19, 2017138SEC filing
Apr 19, 2017Amendment$469,868,416$9,447,774vs Jan 13, 2017123SEC filing
Jan 13, 2017Amendment$460,420,642$21,946,583vs Apr 13, 2016117SEC filing
Apr 13, 2016Amendment$438,474,059$116,685,998vs Apr 13, 2015112SEC filing
Apr 13, 2015Amendment$321,788,061$46,983,933vs Aug 13, 201494SEC filing
Aug 13, 2014Amendment$274,804,128$32,551,376vs Apr 15, 201485SEC filing
Apr 15, 2014Amendment$242,252,752$26,438,000vs Jan 9, 201480SEC filing
Jan 9, 2014Amendment$215,814,752$14,100,000vs Nov 13, 201375SEC filing
Nov 13, 2013Amendment$201,714,752$70,267,309vs Nov 14, 201273SEC filing
Nov 14, 2012Amendment$131,447,443$250,000vs Oct 12, 201263SEC filing
Oct 12, 2012Amendment$131,197,443$9,177,750vs Feb 7, 201262SEC filing
Feb 7, 2012Amendment$122,019,693$16,816,722vs Feb 11, 201159SEC filing
Feb 11, 2011Amendment$105,202,971$25,186,637vs Jul 15, 201048SEC filing
Jul 15, 2010Initial$80,016,334No comparison36SEC filing
May 14, 2010Amendment$45,002,109$21,097,823vs Apr 13, 201021SEC filing
Apr 13, 2010Initial$23,904,286No comparison14SEC filing

Offering details

Securities
Not reported
Exemptions
Not reported
Duration over one year
Not reported
Business combination
Not reported
Sales commissions
Not reported
Finders' fees
Not reported
Form D file number
021-145057

Source: Form D, filed Jan 21, 2026. 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

THE MASTER PORTFOLIO (A), L.P.

Investment adviser: PARTNERS CAPITAL INVESTMENT GROUP, LLP

Gross asset value
$1.08B
Beneficial owners
124
ADV minimum commitment
$100K

Reported in Form ADV on Aug 13, 2026. Fund assets and beneficial owners measure different things from Form D sales and investors.

Service providers

Fund administrator INTERNATIONAL FUND SERVICES (N.A.), L.L.C. BOSTON, Massachusetts, United States Investor statements: Yes (provided to all investors) Related to adviser: No
Auditor DELOITTE AND TOUCHE LLP BOSTON, Massachusetts, United States
Custodian MORGAN STANLEY & CO. LLC NEW YORK, New York, United States Related to adviser: No
Custodian NISA INVESTMENT ADVISORS, LLC ST. LOUIS, Missouri, United States Related to adviser: No
Custodian STATE STREET BANK AND TRUST COMPANY BOSTON, Massachusetts, 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

DELOITTE AND TOUCHE LLP
PCAOB 34

MORGAN STANLEY & CO. LLC
SEC 8-15869

NISA INVESTMENT ADVISORS, LLC
LEI 549300L1IG2JOW7XNY28

Filing source

Form ADV 2125769 · Aug 13, 2026 · Schedule D 7.B.(1), fund 805-2029075814

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
NameReported role
Alexander Band Executive
Edmondo Barletta Executive
John Beil Executive
Emma Bewley Executive
John Collis Executive
Brendan Corcoran Executive
Sam Diedrich Executive
Paul A. Dimitruk Executive
Euan Finlay Executive
William W. Fox Executive
Christoph Guenther Executive
John Hampel Executive
William Jagger Executive
Toby Joll Executive
Moghadam Kamran Executive
Matt Libling Executive
Clint Liebenberg Executive
Clinton Liebenberg Executive
Stan B. Miranda Executive
Stanley B. Miranda Executive
Kamran Moghadam Executive
Sud Murugesu Executive
Colin Pan Executive
N/A Partners Capital Gp I, Llc Executive
N/A Partners Capital Investment Group, L.L.C. Executive
N/A Partners Capital Investment Group, Llp Executive
Arjun Raghavan Executive
Richard Scarinci Executive
Tobias Seth Executive
Toby Seth Executive
David Shushan Executive
Adam Spence Executive
Suzanne Streeter Executive
Seth Toby Executive
Elizabeth Trotta Executive
Adam Watson Executive

Issuer details

Industry: Pooled Investment Fund (See others in industry)

Address:
Partners Capital Investment Group, Llp 600 Atlantic Avenue, 30 Th Floor
Boston, MA, 02210