IronArc Opportunities XVIII, LP is a venture capital fund based in Austin, Texas. According to its most recent Form D, filed Nov 28, 2025, it has sold $1,256,185 of interests to 7 investors since its first sale in Aug 2025. The minimum investment it accepts from an outside investor is $25,000. 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 Patrick Flynn; IronArc GP-A, LLC.
- Total raised
- $1,256,185Cumulative sales reported on Form D
- Investors
- 7
- First sale
- Aug 20, 2025
- Minimum investment
- $25,000
- 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
- Patrick Flynn; IronArc GP-A, LLC
- Latest Form D
- Nov 28, 2025
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 IronArc Opportunities XVIII, LP
What is the minimum investment for IronArc Opportunities XVIII, LP?
According to its latest Form D, filed Nov 28, 2025, the minimum investment IronArc Opportunities XVIII, LP accepts from an outside investor is $25,000.
Who can invest in IronArc Opportunities XVIII, LP?
IronArc Opportunities XVIII, LP 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 IronArc Opportunities XVIII, LP raised?
IronArc Opportunities XVIII, LP reports $1,256,185 sold from 7 investors on its Form D filed Nov 28, 2025. This is cumulative sales since the offering began, not current assets or performance.
Where is IronArc Opportunities XVIII, LP based?
IronArc Opportunities XVIII, LP is based in Austin, Texas.
When did IronArc Opportunities XVIII, LP launch?
IronArc Opportunities XVIII, LP reports its first sale in Aug 2025, 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
Raised more than 57% of the 495 venture capital funds based in Texas, and more than 65% of all 15,160 that report sales.