AltMountain

Arbiter Special Opportunities Fund I, LP

New York, NY · CIK 1551682 · Managed by Arbiter Partners

Arbiter Special Opportunities Fund I, LP is a hedge fund based in New York, New York. According to its most recent Form D, filed Apr 6, 2026, the fund has sold $26,856,500 of interests to 26 investors since its first sale in Jun 2012. The filing does not set a minimum investment. It relies on the Section 3(c)(1) exclusion, which limits it to 100 beneficial owners, typically accredited investors. The offering uses Rule 506(b), which does not permit general solicitation. Related persons named in the filing include Paul Isaac.

Performance

13F estimate · public data only

No verified returns have been reported for this fund. As a rough guide, Arbiter Partners, which manages it, disclosed U.S. stock holdings that returned an estimated -6.2% 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 +95.8% (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.

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

Total raised
$26,856,500Cumulative sales reported on Form D
Investors
26
First sale
Jun 1, 2012
Minimum investment
None set
Who can invest
Accredited investorsSection 3(c)(1): up to 100 beneficial owners
Offering exemption
Rule 506(b)No general advertising
Key people and entities
Paul Isaac
Latest Form D
Apr 6, 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 Arbiter Special Opportunities Fund I, LP

What is the minimum investment for Arbiter Special Opportunities Fund I, LP?

Arbiter Special Opportunities Fund I, LP's latest Form D, filed Apr 6, 2026, does not set a minimum investment. Managers can still require one in the offering documents.

Who can invest in Arbiter Special Opportunities Fund I, LP?

Arbiter Special Opportunities Fund I, LP is generally open only to accredited investors, and it may have no more than 100 beneficial owners because it relies on Section 3(c)(1). It uses Rule 506(b), which does not allow general advertising.

How much has Arbiter Special Opportunities Fund I, LP raised?

Arbiter Special Opportunities Fund I, LP reports $26,856,500 sold from 26 investors on its Form D filed Apr 6, 2026. This is cumulative sales since the offering began, not current assets or performance.

Where is Arbiter Special Opportunities Fund I, LP based?

Arbiter Special Opportunities Fund I, LP is based in New York, New York and is managed by Arbiter Partners.

When did Arbiter Special Opportunities Fund I, LP launch?

Arbiter Special Opportunities Fund I, LP reports its first sale in Jun 2012.

Size compared with every hedge fund

Raised more than 34% of the 2,544 hedge funds based in New York, and more than 35% of all 10,307 that report sales.

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