AltMountain

Thirteen Partners Concentrated, Ltd.

Offshore

Thirteen Partners Concentrated, Ltd. is a hedge fund based in Grand Cayman, Cayman Islands. According to its most recent Form D, filed Apr 15, 2026, the fund has sold $20,430,301 of interests to 34 investors since its first sale in Jan 2016. 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 Alternative Investment Management, LLC; Jonathan Harris; Inderjit Singh.

Performance

No verified returns have been reported for this fund. Hedge fund returns are not part of SEC filings; managers report them to AltMountain directly.

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Total raised
$20,430,301Cumulative sales reported on Form D
Investors
34
First sale
Jan 1, 2016
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
Alternative Investment Management, LLC; Jonathan Harris; Inderjit Singh
Latest Form D
Apr 15, 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 Thirteen Partners Concentrated, Ltd.

What is the minimum investment for Thirteen Partners Concentrated, Ltd.?

According to its latest Form D, filed Apr 15, 2026, the minimum investment Thirteen Partners Concentrated, Ltd. accepts from an outside investor is $100,000.

Who can invest in Thirteen Partners Concentrated, Ltd.?

Thirteen Partners Concentrated, Ltd. 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 Thirteen Partners Concentrated, Ltd. raised?

Thirteen Partners Concentrated, Ltd. reports $20,430,301 sold from 34 investors on its Form D filed Apr 15, 2026. This is cumulative sales since the offering began, not current assets or performance.

Where is Thirteen Partners Concentrated, Ltd. based?

Thirteen Partners Concentrated, Ltd. is based in Grand Cayman, Cayman Islands and is managed by Alternative Investment Management, LLC.

When did Thirteen Partners Concentrated, Ltd. launch?

Thirteen Partners Concentrated, Ltd. reports its first sale in Jan 2016.

Size compared with every hedge fund

Raised more than 28% of the 2,363 hedge funds based in Cayman Islands, and more than 31% of all 10,308 that report sales.

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