Michael Rainen is listed as a director on 4 SEC Form D filings by 1 issuer between Aug 2023 and Dec 2025: MuscleSound, Inc. (Englewood, CO — biotechnology — 2023–2025; $1.82M reported sold to 13 investors).
What this means One deal on file with the SEC. A Form D is the notice a company files after it starts selling a private investment — it is a notice, not an approval.
Listed alongside Benton Barney (4 shared filings), Brad Busse (4 shared filings), John Cochran (4 shared filings), Solomon Aronson (4 shared filings), Stephen S. Kurtz (4 shared filings) and 2 others.
What this means These are the other officers, directors or promoters the companies named on the same forms — the team around Michael. Each name links to their own page.
Public records searched: federal courts (CourtListener / RECAP), SEC enforcement releases, state securities regulators (AZ, CA, DE, TX, WA) — none found.
What this means Nothing turned up where we looked (3 sources). That does not prove there is nothing — it means none was found in those sources on that date.
We compared 4 public filings for Michael Rainen and found 5 differences, 1 worth asking the sponsor about: Form D filed 85 days after the first sale; 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.