AltMountain

Calera XXVIII, LLC

San Francisco, CA · CIK 2102870

Calera XXVIII, LLC is a private equity fund based in San Francisco, California. According to its most recent Form D, filed Jan 13, 2026, it has sold $177,264,941 of interests to 17 investors since its first sale in Dec 2025. 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 Mark Williamson; Calera Capital Investors VI, L.P; Calera Capital Management, Inc.

Total raised
$177,264,941Cumulative sales reported on Form D
Investors
17
First sale
Dec 31, 2025
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
Mark Williamson; Calera Capital Investors VI, L.P; Calera Capital Management, Inc
Latest Form D
Jan 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 Calera XXVIII, LLC

What is the minimum investment for Calera XXVIII, LLC?

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

Who can invest in Calera XXVIII, LLC?

Calera XXVIII, LLC 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 Calera XXVIII, LLC raised?

Calera XXVIII, LLC reports $177,264,941 sold from 17 investors on its Form D filed Jan 13, 2026. This is cumulative sales since the offering began, not current assets or performance.

Where is Calera XXVIII, LLC based?

Calera XXVIII, LLC is based in San Francisco, California.

When did Calera XXVIII, LLC launch?

Calera XXVIII, LLC reports its first sale in Dec 2025.

Size compared with every private equity fund

Raised more than 91% of the 1,777 private equity funds based in California, and more than 80% of all 9,142 that report sales.

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