AltMountain

Fermion LLC

San Francisco, CA · CIK 2114299
Emerging

Fermion LLC is a venture capital fund based in San Francisco, California. Its most recent Form D, filed Mar 13, 2026, reports no sales yet. 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. Based on its first sale date and the amount raised, AltMountain classifies it as an emerging manager. Related persons named in the filing include Rob Reid; Hadron LLC.

Total raised
$0Cumulative sales reported on Form D
Investors
27
First sale
Jan 27, 2026
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
Rob Reid; Hadron LLC
Latest Form D
Mar 13, 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. Returns are not part of SEC filings. Private funds are speculative, illiquid and generally limited to accredited investors or qualified purchasers. Full disclosures · Request a correction

Questions about Fermion LLC

What is the minimum investment for Fermion LLC?

Fermion LLC's latest Form D, filed Mar 13, 2026, does not set a minimum investment. Managers can still require one in the offering documents.

Who can invest in Fermion LLC?

Fermion LLC 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 Fermion LLC raised?

Fermion LLC's latest Form D, filed Mar 13, 2026, reports no sales yet.

Where is Fermion LLC based?

Fermion LLC is based in San Francisco, California.

When did Fermion LLC launch?

Fermion LLC reports its first sale in Jan 2026, which makes it an emerging manager by AltMountain's definition (first sale in 2021 or later and under $50 million raised).

Size compared with every venture capital fund

This fund hasn't reported any sales yet.

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