Shannon River, Ltd.
Shannon River, Ltd. is a hedge fund based in Camana Bay, Cayman Islands. According to its most recent Form D, filed Feb 10, 2026, the fund has sold $622,647,219 of interests to 141 investors since its first sale in Aug 2011. The minimum investment it accepts from an outside investor is $100,000. 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 Patrick Agemian; Philip Cater; Spencer Waxman.
Performance
No verified returns have been reported for this fund. As a rough guide, Shannon River Fund Management, LLC, which manages it, disclosed U.S. stock holdings that returned an estimated +48.7% 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 +127.8% (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
- $622,647,219Cumulative sales reported on Form D
- Investors
- 141
- First sale
- Aug 1, 2011
- Minimum investment
- $100,000
- Who can invest
- Qualified purchasersSection 3(c)(7): generally $5M+ in investments
- Offering exemption
- Rule 506(b)No general advertising
- Key people and entities
- Patrick Agemian; Philip Cater; Spencer Waxman
- Latest Form D
- Feb 10, 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 Shannon River, Ltd.
What is the minimum investment for Shannon River, Ltd.?
According to its latest Form D, filed Feb 10, 2026, the minimum investment Shannon River, Ltd. accepts from an outside investor is $100,000.
Who can invest in Shannon River, Ltd.?
Shannon River, Ltd. 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 Shannon River, Ltd. raised?
Shannon River, Ltd. reports $622,647,219 sold from 141 investors on its Form D filed Feb 10, 2026. This is cumulative sales since the offering began, not current assets or performance.
Where is Shannon River, Ltd. based?
Shannon River, Ltd. is based in Camana Bay, Cayman Islands and is managed by Shannon River Fund Management, LLC.
When did Shannon River, Ltd. launch?
Shannon River, Ltd. reports its first sale in Aug 2011.
Size compared with every hedge fund
Raised more than 79% of the 2,363 hedge funds based in Cayman Islands, and more than 84% of all 10,308 that report sales.