AltMountain

Blue Door Flex LP

Stamford, CT · CIK 1869209 · Managed by Blue Door Asset Management, LLC

Blue Door Flex LP is a hedge fund based in Stamford, Connecticut. According to its most recent Form D, filed Jul 17, 2026, the fund has sold $69,150,918 of interests to 22 investors since its first sale in Jul 2021. 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 Blue Door GP LLC; Blue Door Asset Management LLC.

Performance

13F estimate · public data only

No verified returns have been reported for this fund. As a rough guide, Blue Door Asset Management, LLC, which manages it, disclosed U.S. stock holdings that returned an estimated +28.3% 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 +59.7% (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
$69,150,918Cumulative sales reported on Form D
Investors
22
First sale
Jul 8, 2021
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
Blue Door GP LLC; Blue Door Asset Management LLC
Latest Form D
Jul 17, 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 Blue Door Flex LP

What is the minimum investment for Blue Door Flex LP?

Blue Door Flex LP's latest Form D, filed Jul 17, 2026, does not set a minimum investment. Managers can still require one in the offering documents.

Who can invest in Blue Door Flex LP?

Blue Door Flex 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 Blue Door Flex LP raised?

Blue Door Flex LP reports $69,150,918 sold from 22 investors on its Form D filed Jul 17, 2026. This is cumulative sales since the offering began, not current assets or performance.

Where is Blue Door Flex LP based?

Blue Door Flex LP is based in Stamford, Connecticut and is managed by Blue Door Asset Management, LLC.

When did Blue Door Flex LP launch?

Blue Door Flex LP reports its first sale in Jul 2021.

Size compared with every hedge fund

Raised more than 62% of the 862 hedge funds based in Connecticut, and more than 51% of all 10,307 that report sales.

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