AltMountain

Capstone Mount Washington Fund, LP

New York, NY · CIK 2030745 · Managed by Capstone Investment Advisors, LLC

Capstone Mount Washington Fund, LP is a hedge fund based in New York, New York. According to its most recent Form D, filed May 21, 2026, the fund has sold $115,178,494 of interests to 3 investors since its first sale in Apr 2022. The filing does not set a minimum investment. It relies on the Section 3(c)(7) exclusion, so investors generally must be qualified purchasers. The offering uses Rule 506(b), which does not permit general solicitation. Related persons named in the filing include Capstone Fund Services II, LLC; Paul Britton; Capstone Investment Advisors, LLC.

Performance

13F estimate · public data only

No verified returns have been reported for this fund. As a rough guide, Capstone Investment Advisors, LLC, which manages it, disclosed U.S. stock holdings that returned an estimated +7.3% 2026 YTD through Jun 30 (S&P 500: +9.5%), based only on its public 13F filings. Over a longer period, Q3 2024 to Q2 2026, the estimate is +55.9% (S&P 500: +37.2%).

This estimate covers the firm's whole disclosed long U.S. stock portfolio. It is not this fund's return and excludes dividends, fees, shorts, derivatives, bonds, cash and trading within each quarter.

Is this your fund? Report your monthly returns · How performance works

Total raised
$115,178,494Cumulative sales reported on Form D
Investors
3
First sale
Apr 1, 2022
Minimum investment
None set
Who can invest
Qualified purchasersSection 3(c)(7): generally $5M+ in investments
Offering exemption
Rule 506(b)No general advertising
Key people and entities
Capstone Fund Services II, LLC; Paul Britton; Capstone Investment Advisors, LLC
Latest Form D
May 21, 2026

From SEC filings, not verified. This page republishes the fund's Form D as filed. It is not an offer, solicitation or recommendation, and AltMountain has not reviewed the fund. “Raised” is cumulative sales, not current assets or performance. Private funds are speculative, illiquid and generally limited to accredited investors or qualified purchasers. Full disclosures · Request a correction

Questions about Capstone Mount Washington Fund, LP

What is the minimum investment for Capstone Mount Washington Fund, LP?

Capstone Mount Washington Fund, LP's latest Form D, filed May 21, 2026, does not set a minimum investment. Managers can still require one in the offering documents.

Who can invest in Capstone Mount Washington Fund, LP?

Capstone Mount Washington Fund, LP is generally open only to qualified purchasers (generally individuals with at least $5 million in investments), because it relies on Section 3(c)(7). It uses Rule 506(b), which does not allow general advertising.

How much has Capstone Mount Washington Fund, LP raised?

Capstone Mount Washington Fund, LP reports $115,178,494 sold from 3 investors on its Form D filed May 21, 2026. This is cumulative sales since the offering began, not current assets or performance.

Where is Capstone Mount Washington Fund, LP based?

Capstone Mount Washington Fund, LP is based in New York, New York and is managed by Capstone Investment Advisors, LLC.

When did Capstone Mount Washington Fund, LP launch?

Capstone Mount Washington Fund, LP reports its first sale in Apr 2022.

Size compared with every hedge fund

Raised more than 57% of the 2,544 hedge funds based in New York, and more than 60% of all 10,308 that report sales.

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