AltMountain

DEF Associates LP

New York, NY · CIK 1506964 · Managed by Arnhold LLC

DEF Associates LP is a hedge fund based in New York, New York. According to its most recent Form D, filed Feb 11, 2026, the fund has sold $669,903,518 of interests to 58 investors since its first sale in Jan 2011. The minimum investment it accepts from an outside investor is $100,000. 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 Arnhold LLC; Timothy Tabor; Christa Dorrego.

Performance

13F estimate · public data only

No verified returns have been reported for this fund. As a rough guide, Arnhold LLC, which manages it, disclosed U.S. stock holdings that returned an estimated +14.3% 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 +73.0% (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
$669,903,518Cumulative sales reported on Form D
Investors
58
First sale
Jan 1, 2011
Minimum investment
$100,000
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
Arnhold LLC; Timothy Tabor; Christa Dorrego
Latest Form D
Feb 11, 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 DEF Associates LP

What is the minimum investment for DEF Associates LP?

According to its latest Form D, filed Feb 11, 2026, the minimum investment DEF Associates LP accepts from an outside investor is $100,000.

Who can invest in DEF Associates LP?

DEF Associates 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 DEF Associates LP raised?

DEF Associates LP reports $669,903,518 sold from 58 investors on its Form D filed Feb 11, 2026. This is cumulative sales since the offering began, not current assets or performance.

Where is DEF Associates LP based?

DEF Associates LP is based in New York, New York and is managed by Arnhold LLC.

When did DEF Associates LP launch?

DEF Associates LP reports its first sale in Jan 2011.

Size compared with every hedge fund

Raised more than 83% of the 2,544 hedge funds based in New York, and more than 85% of all 10,307 that report sales.

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