Maple Rock US Fund LP
Maple Rock US Fund LP is a hedge fund based in Corte Madera, California. According to its most recent Form D, filed Dec 30, 2025, the fund has sold $1,103,639,686 of interests to 140 investors since its first sale in Jan 2015. 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 Maple Rock Capital Partners Inc; Xavier Majic; Maple Rock US GP Inc.
Performance
No verified returns have been reported for this fund. As a rough guide, Maple Rock Capital Partners Inc., which manages it, disclosed U.S. stock holdings that returned an estimated +63.0% 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 +187.3% (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
- $1,103,639,686Cumulative sales reported on Form D
- Investors
- 140
- First sale
- Jan 1, 2015
- 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
- Maple Rock Capital Partners Inc; Xavier Majic; Maple Rock US GP Inc
- Latest Form D
- Dec 30, 2025
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 Maple Rock US Fund LP
What is the minimum investment for Maple Rock US Fund LP?
Maple Rock US Fund LP's latest Form D, filed Dec 30, 2025, does not set a minimum investment. Managers can still require one in the offering documents.
Who can invest in Maple Rock US Fund LP?
Maple Rock US 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 Maple Rock US Fund LP raised?
Maple Rock US Fund LP reports $1,103,639,686 sold from 140 investors on its Form D filed Dec 30, 2025. This is cumulative sales since the offering began, not current assets or performance.
Where is Maple Rock US Fund LP based?
Maple Rock US Fund LP is based in Corte Madera, California and is managed by Maple Rock Capital Partners Inc..
When did Maple Rock US Fund LP launch?
Maple Rock US Fund LP reports its first sale in Jan 2015.
Size compared with every hedge fund
Raised more than 92% of the 1,060 hedge funds based in California, and more than 91% of all 10,308 that report sales.