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Last reviewed: 7 August 2026 · By Randy Mitchell, Co-Founder, Private Capital Development
A non-U.S. fund can sell offshore under Regulation S and to U.S. investors under Rule 506 at the same time; Rule 152(b)(2) keeps the two offerings separate. One question has stayed open since 2013: whether public 506(c) solicitation counts as "directed selling efforts" that defeat the Reg S side. No guidance resolves it as of 7 August 2026.
Educational content — not legal advice. See the full note at the end of this article.
Almost every non-U.S. fund that considers American investors is already running an offering somewhere else. Your home-market investors subscribe under Regulation S, the U.S. safe harbor that confirms a genuinely offshore offering falls outside U.S. registration. The question that follows is whether adding a U.S. sleeve under Regulation D breaks anything. It is really two questions wearing one coat, and they have different answers. Most of what you will read online merges them into a single reassurance. This article keeps them apart, because the difference is where the risk lives.
Can my offshore fund take U.S. investors without breaking anything?
Start with the shape of the structure, for readers new to the American vocabulary. Regulation S says that offers and sales made outside the United States, to non-U.S. persons, without efforts to stir up the U.S. market, do not need U.S. registration. Regulation D, covered in our 506(b)/506(c) guide, is the private-placement route for the U.S. investors themselves. A fund running both at once is the standard cross-border arrangement: the same vehicle, or a parallel one, selling offshore under Reg S and into the U.S. under Rule 506.
Two legal questions decide whether the combination is safe. The first asks whether the two offerings will be treated as one, which lawyers call integration. The second asks whether conduct in the U.S. offering can poison the offshore one. The first has a clean answer. The second does not, and has not for thirteen years.
Will the two offerings be integrated? Settled, and in your favor
Integration is the doctrine that stops an issuer from splitting one offering into pieces to dodge the rules for the whole. If your offshore sales and your U.S. sales were integrated, the combined offering would need to satisfy a single exemption, and the arithmetic could fail.
Since January 2021 the answer sits in black-letter rule text. Rule 152(b)(2) provides that offers and sales made in compliance with Regulation S "will not be integrated" with other offerings. The safe harbor is categorical. It requires no analysis of your intent, your timing, or your investor overlap, and it applies whether your U.S. sleeve runs under 506(b) or 506(c). The rule codified a position the SEC had stated as early as 1990 and repeated when it created 506(c) in 2013.
So the concurrent structure itself is standard, safe, and boring. If integration were the whole story, this article would end here.
Does public 506(c) solicitation poison the Reg S side? Open since 2013
Regulation S has its own conditions, separate from integration. One of them: there must be no "directed selling efforts" in the United States, defined as any activity undertaken for the purpose of, or that could reasonably be expected to have the effect of, conditioning the U.S. market for the offshore securities. The definition is broad on purpose. The rule's list of excluded activities is short and specific, things like legally required notices and limited tombstone advertisements, and public fundraising campaigns are not on it.
Now put the two regimes side by side. Rule 506(c) permits general solicitation: advertising, open websites, public statements about the offering. Regulation S, running next to it, forbids activity that conditions the U.S. market. Does a lawful 506(c) campaign, aimed at U.S. investors, also count as market conditioning that defeats the concurrent Reg S tranche?
The SEC has never answered. When it adopted 506(c) in 2013 it confirmed the integration point and stopped there. We checked the adopting release's actual text on this, passage by passage, because a claim circulates online that the SEC blessed the combination. It did not. The release discusses integration only; the directed-selling-efforts question appears in a background footnote and is never resolved. Since then, no rule amendment, no staff interpretation, and no no-action letter has touched it. The staff has not issued a Regulation S no-action letter of any kind since 2019. Thirteen years on, the question is exactly where 2013 left it.
What do managers actually do about the open question?
Market practice has settled into two patterns, both built on the same instinct: do not let the loud offering sit next to the quiet one.
The first pattern is the simplest. Run the U.S. sleeve under 506(b), which involves no general solicitation, so the directed-selling-efforts question never arises. This is a genuine argument for 506(b) that rarely gets stated: for a manager with a live offshore tranche, the quiet U.S. path removes an unresolved legal question entirely. The March 2025 verification relief made 506(c) cheaper to operate, but it did nothing to answer this question, and managers weighing the two paths should put this on the scale.
The second pattern keeps 506(c) but builds walls. Offering materials are separated by geography. Offshore investors reach a different portal than U.S. investors. The Reg S documents carry the legends and resale restrictions their category requires, and the public campaign is reviewed so that it speaks to the U.S. offering alone. This is risk management rather than a safe harbor, and counsel who design these structures will say so plainly.
A manager who pairs a full 506(c) publicity campaign with a concurrent Reg S tranche, without separation, is taking a position no regulator has approved. That is not a prediction of enforcement. It is a statement about where the law stops and judgment begins, and judgment of that kind belongs to your counsel, with open eyes.
Who counts as a "U.S. person," and why does my feeder structure care?
The Regulation S definition of "U.S. person" does more work than most managers expect. Broadly, it covers natural persons resident in the United States and entities organized or headquartered there, with detailed carve-outs for things like offshore branches of U.S. institutions.
The same definition then shows up in two other places you care about. The adviser rules use it to decide which of your investors are "in the United States" for exemption purposes. And under a long-standing staff position, confirmed at Commission level in 2011, a non-U.S. fund making a private U.S. offering counts only its U.S. holders against the fund-exclusion limits, which is what makes a 100-holder rule workable for a large offshore vehicle. One definition, three regimes. Getting it precisely right, particularly for edge cases like dual residents and trustee arrangements, is a detail worth an hour of counsel's time early rather than a restructuring later.
How should a non-U.S. GP sequence this decision?
The order matters more than the answers, because the offering choice drives everything downstream.
- Choose the U.S. exemption first. The 506(b)/506(c) decision sets your publicity posture, and the posture determines whether the open question above is even in play for you.
- Paper the offshore tranche to match. If 506(c) is the choice, the separation architecture (portals, legends, review of campaign materials) gets built before the campaign starts, not after.
- Revisit at each close. Offerings evolve. A raise that began quietly and later wants publicity has to re-run this analysis before the posture changes.
This is the one corner of U.S. private-placement law where "ask counsel" is the substantive answer rather than a disclaimer, because there is no safe answer for anyone to give you. What a manager controls is the structure around the uncertainty. Managers who keep the offshore and U.S. tracks clean tend to share one habit: the public presence sells the firm, and the fund travels person to person.
Frequently asked questions
Can I run a Regulation S offering and a Rule 506 offering at the same time? Yes. Under Rule 152(b)(2), offers and sales made in compliance with Regulation S are not integrated with other offerings. The concurrent offshore-plus-U.S. structure is standard practice.
Does using 506(c) general solicitation break my Reg S offering? Unresolved. Integration is safe, but whether U.S.-directed public solicitation constitutes "directed selling efforts" against the Reg S tranche has never been answered by rule or guidance since 506(c) was adopted in 2013. Conservative structures avoid pairing them.
Did the SEC confirm that 506(c) solicitation is not "directed selling efforts"? No. The 2013 adopting release addressed integration only; the frequently repeated contrary claim overreads that holding. The question remains open as of 7 August 2026.
What is a "U.S. person" under Regulation S? Broadly, a natural person resident in the U.S. or an entity organized or with its principal office there, with detailed carve-outs. The same definition drives adviser-exemption and fund-counting tests, so it is worth getting precisely right with counsel.
Do my Reg S investors count against the U.S. fund limits? No. For a non-U.S. fund making a private U.S. offering, only U.S. holders count toward the 100-holder or qualified-purchaser tests, under a long-standing staff position confirmed at Commission level.
If I stay with 506(b) for the U.S. tranche, does the problem go away? Largely, yes. 506(b) involves no general solicitation, so the directed-selling-efforts question never arises. That simplicity is a real and rarely stated argument in 506(b)'s favor for managers with live offshore tranches.
Change log
- 7 August 2026 — First published. Verified against Rule 152 and Rule 902(c) text, the 2013 adopting release (Release 33-9415, checked passage by passage on the directed-selling-efforts point), the 2020 harmonization release, and the SEC's Regulation S no-action index.
Educational content only. This article explains publicly available regulation for general information, current as of the "Last reviewed" date shown above. It is not legal, tax, or compliance advice — U.S. securities law and EU marketing law each require qualified counsel, and nothing here substitutes for either. Private Capital Development LLC is not a law firm, and is not a placement agent or broker-dealer; we do not conduct regulated fund distribution in the European Union or the United States. We connect fund managers and institutional investors through relationship facilitation on a flat-fee retainer.
About the author. Randy Mitchell is the co-founder of Private Capital Development LLC. He spent thirteen years at the U.S. Department of Commerce / International Trade Administration, from 2001 to 2014, where he organized and ran more than 150 LP/GP introductory sessions across 45 cities on six continents. He is not a lawyer, and this is not legal advice.
For managers planning a U.S. raise: CapitalConnect, multi-city U.S. roadshows built for non-U.S. managers meeting U.S. institutional investors. For ongoing U.S. relationship development: Concierge, one-to-one LP introduction support on a flat monthly retainer. We are not lawyers and this is not a compliance service: we handle the relationship side while your counsel handles the regulatory side.
