AltMountain

SEA III Managers, LLC

Marina Del Rey, CA · CIK 2133313
Emerging

SEA III Managers, LLC is a private equity fund based in Marina Del Rey, California. According to its most recent Form D, filed May 12, 2026, it has sold $22,843,428 of interests to 21 investors since its first sale in Apr 2026. 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. Based on its first sale date and the amount raised, AltMountain classifies it as an emerging manager. Related persons named in the filing include Matt Seidler; Robert Seidler; Eric Kutsenda.

Total raised
$22,843,428Cumulative sales reported on Form D
Investors
21
First sale
Apr 30, 2026
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
Matt Seidler; Robert Seidler; Eric Kutsenda
Latest Form D
May 12, 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 SEA III Managers, LLC

What is the minimum investment for SEA III Managers, LLC?

SEA III Managers, LLC's latest Form D, filed May 12, 2026, does not set a minimum investment. Managers can still require one in the offering documents.

Who can invest in SEA III Managers, LLC?

SEA III Managers, 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 SEA III Managers, LLC raised?

SEA III Managers, LLC reports $22,843,428 sold from 21 investors on its Form D filed May 12, 2026. This is cumulative sales since the offering began, not current assets or performance.

Where is SEA III Managers, LLC based?

SEA III Managers, LLC is based in Marina Del Rey, California.

When did SEA III Managers, LLC launch?

SEA III Managers, LLC reports its first sale in Apr 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 private equity fund

Raised more than 75% of the 1,782 private equity funds based in California, and more than 53% of all 9,159 that report sales.

Other funds with the same team

More private equity funds in Marina Del Rey

Similar-size private equity funds in California

All private equity funds in California