River Mason City, LLC — Form D

River Mason City, LLC of SIOUX FALLS, SD, a company, filed a Form D exempt-offering notice with the SEC on 2026-06-17. The offering totals $3.5M, of which $3.5M was reported sold. Industry: Residential.

Offering

• Filed: 2026-06-17
• Form: D
• Accession: 0002141076-26-000001
• Industry: Residential
• Exemptions: 06b
• Total offering: $3.5M
• Amount sold: $3.5M
• Minimum investment: $100K
• Investors: 4
• Security types: equity
• Revenue range: Decline to Disclose
• SEC file number: 021-587736

Issuer

• Name: River Mason City, LLC
• CIK: 0002141076
• Entity type: Limited Liability Company
• Jurisdiction: SOUTH DAKOTA
• Address: 1305 EAST BENSON ROAD 1305 EAST BENSON ROAD, SIOUX FALLS, SD, 57104
• Phone: 605-331-2900

More

• CIK 2141076 on SEC EDGAR (source of record)
• This page as markdown (for LLM agents)
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