CastleKnight Onshore Fund LP
CastleKnight Onshore Fund LP is a hedge fund based in New York, New York. According to its most recent Form D, filed Oct 9, 2026, the fund has sold $1,127,686,241 of interests to 1,420 investors since its first sale in Oct 2020. 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 CastleKnight Management LP; CastleKnight Fund GP LLC.
Performance
No verified returns have been reported for this fund. As a rough guide, Castleknight Management LP, which manages it, disclosed U.S. stock holdings that returned an estimated +52.0% 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 +118.2% (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.
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- Total raised
- $1,127,686,241Cumulative sales reported on Form D
- Investors
- 1,420
- First sale
- Oct 1, 2020
- 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
- CastleKnight Management LP; CastleKnight Fund GP LLC
- Latest Form D
- Oct 9, 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 CastleKnight Onshore Fund LP
What is the minimum investment for CastleKnight Onshore Fund LP?
CastleKnight Onshore Fund LP's latest Form D, filed Oct 9, 2026, does not set a minimum investment. Managers can still require one in the offering documents.
Who can invest in CastleKnight Onshore Fund LP?
CastleKnight 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 CastleKnight Onshore Fund LP raised?
CastleKnight Onshore Fund LP reports $1,127,686,241 sold from 1,420 investors on its Form D filed Oct 9, 2026. This is cumulative sales since the offering began, not current assets or performance.
Where is CastleKnight Onshore Fund LP based?
CastleKnight Onshore Fund LP is based in New York, New York and is managed by Castleknight Management LP.
When did CastleKnight Onshore Fund LP launch?
CastleKnight Onshore Fund LP reports its first sale in Oct 2020.
Size compared with every hedge fund
Raised more than 89% of the 2,544 hedge funds based in New York, and more than 91% of all 10,308 that report sales.