Michael Natan is listed as an executive officer and director on 6 SEC Form D filings by 3 issuers between Jul 2017 and Dec 2023: Spear Bio Inc. (Woburn, MA — biotechnology — 2021; $45M reported sold to 8 investors), Ultivue, Inc. (Cambridge, MA — biotechnology — 2017–2019; $26.5M reported sold to 14 investors) and Diametryx Inc. (Cambridge, MA — other technology — 2023; $1.1M reported sold to 5 investors).
What this means A repeat sponsor — 3 separate companies raised money with this person listed as executive officer and director, over about 6 years. Across those companies the filings report $72.6M sold in total.
Listed alongside Peng Yin (5 shared filings), Andrew Stevenson (3 shared filings), David Walt (3 shared filings), Keith Crandell (3 shared filings), Lian Yong Chen (2 shared filings) and 5 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) — 3 court cases matching the name listed in Key records below.
What this means 3 records came back. Each one is listed below with a link to the original document and a line saying why it matched. A name match is not proof it is the same person or company — read the why line and the document. Being sued or named in a release is an accusation, not a finding.
We compared 6 public filings for Michael Natan and found 4 differences: Offering amount changed between filings; No amendment in the last 12 months on an offering that may still be open; 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.