Sio is a sponsor group of 4 issuers that PartnerFacts links to one sponsor (shared people, shared management entity, similar issuer names; automatic match from the filings), filing 31 Form D filings between Apr 2009 and Feb 2026.
What this means One team, 4 deal companies, about 17 years of track record in SEC filings. We link the companies because the same people or address appear on their forms — tap "Request a correction" if that is wrong.
Combined reported sold: $975.1M to 345 investors (latest filing per issuer). Industries as reported: Pooled Investment Fund (4). Issuers are based in NY (4).
What this means $975.1M raised across the group, about $2.83M per investor. Amounts come from each company's latest Form D; they are what the sponsor reported, not audited figures.
Principal people: Michael Castor (4 issuers, executive officer and director), Sio Capital Management, LLC (3 issuers, promoter, entity), Sio GP, LLC (3 issuers, promoter, entity), JIN W. LEE (1 issuer, executive officer), Judah Drillick (1 issuer, executive officer and promoter) and 6 more.
What this means The person on the most companies is usually the one running the show; their page lists every deal.
Activity: 0 new offerings in the last 12 months; latest filing Feb 19, 2026.
What this means No new raise filed in the past year.
Adviser registration (Form ADV) on record: SIO CAPITAL MANAGEMENT, LLC.
Public records searched: federal courts (CourtListener / RECAP), SEC enforcement releases, state securities regulators (AZ, CA, DE, TX, WA), property records (NYC, FL, IL and TX counties) — none found.
What this means Nothing turned up where we looked (4 sources). That does not prove there is nothing — it means none was found in those sources on that date.
We compared 31 public filings for Sio and found 13 differences, 4 worth asking the sponsor about: Form D filed 1,051 days after the first sale; Todd Hazlewood is no longer listed on the Mar 8, 2023 amendment; and more below.
What this means These are differences between the sponsor's own SEC filings — both values, dates and sources are listed in Key records, section 4. Most have ordinary explanations; ask the sponsor.