AltMountain

Four Pines Onshore Fund LP

Baltimore, MD · CIK 1808411 · Managed by Rock Springs Capital

Four Pines Onshore Fund LP is a hedge fund based in Baltimore, Maryland. According to its most recent Form D, filed Mar 20, 2026, the fund has sold $185,991,000 of interests to 24 investors since its first sale in Apr 2020. The minimum investment it accepts from an outside investor is $10,000,000. 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 Kris Jenner; Gordon Bussard; Rock Springs Capital Management LP.

Performance

13F estimate · public data only

No verified returns have been reported for this fund. As a rough guide, Rock Springs Capital, which manages it, disclosed U.S. stock holdings that returned an estimated +15.4% 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 +54.6% (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
$185,991,000Cumulative sales reported on Form D
Investors
24
First sale
Apr 1, 2020
Minimum investment
$10,000,000
Who can invest
Qualified purchasersSection 3(c)(7): generally $5M+ in investments
Offering exemption
Rule 506(b)No general advertising
Key people and entities
Kris Jenner; Gordon Bussard; Rock Springs Capital Management LP
Latest Form D
Mar 20, 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 Four Pines Onshore Fund LP

What is the minimum investment for Four Pines Onshore Fund LP?

According to its latest Form D, filed Mar 20, 2026, the minimum investment Four Pines Onshore Fund LP accepts from an outside investor is $10,000,000.

Who can invest in Four Pines Onshore Fund LP?

Four Pines Onshore 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 Four Pines Onshore Fund LP raised?

Four Pines Onshore Fund LP reports $185,991,000 sold from 24 investors on its Form D filed Mar 20, 2026. This is cumulative sales since the offering began, not current assets or performance.

Where is Four Pines Onshore Fund LP based?

Four Pines Onshore Fund LP is based in Baltimore, Maryland and is managed by Rock Springs Capital.

When did Four Pines Onshore Fund LP launch?

Four Pines Onshore Fund LP reports its first sale in Apr 2020.

Size compared with every hedge fund

Raised more than 74% of the 62 hedge funds based in Maryland, and more than 68% of all 10,308 that report sales.

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