Private company
Who owns Ionetix Corp
One company in the researched set discloses a stake in Ionetix Corp, none of it sized by anyone who discloses it. Ionetix Corp is private, so no 13F reports it: a 13F covers exchange listed positions only. These figures exist because each holder disclosed the stake in its own filings.
Ionetix Corp - Profile
- Type
- private company
- Based in
- United States
IONETIX Corporation is a Lansing, Michigan maker of particle accelerators and medical radioisotopes. Its patented superconducting cyclotron technology underpins two lines of business: diagnostic isotopes for positron emission tomography, including N-13 ammonia used in cardiac perfusion imaging and Ga-68 PSMA-11 used in prostate cancer imaging, which it manufactures under current good manufacturing practice and distributes to hospital imaging sites; and alpha emitting therapeutic isotopes, actinium-225 and astatine-211, which drug developers use in targeted alpha therapies for cancer. The company built an Alpha Isotope Manufacturing Facility in Lansing dedicated to alpha emitters, produced actinium-225 there in 2024 by bombarding radium-226 with a proton beam, and began construction of a second cyclotron for actinium-225 in October 2024. In April 2026 it completed a reverse merger with the shell company JDEV Acquisition Corp and a private placement of more than 30 million dollars at 3 dollars a share, becoming an SEC reporting company that applied for quotation on the OTCQB venture market.
Source
Ionetix Corp files nothing with the SEC, so none of this comes from a filer record. The description was written for this site in August 2026 from IONETIX closes financing led by Tees River and Eli Lilly and Company (PR Newswire), Ionetix Completes $30 million+ Financing in a Go-Public Transaction (IONETIX), IONETIX announces start of construction to add second cyclotron for Ac-225 production at its Alpha Isotope Manufacturing Facility (IONETIX) and Ionetix Corp Form 10-Q filing index (SEC EDGAR). The ownership figures below come from the holders' filings instead, and are sourced row by row.
The disclosed stakes
One row per position. Where a holder reports the same company in two share classes, both rows are shown rather than summed, because the class is part of a position's identity.
Where each figure comes from
A private stake has no ownership form behind it, so the source is always the holder's own filing or disclosure. Anything modelled says so, with the arithmetic.
- Eli Lilly and Company. No value is carried because I could not find a traded price for Ionetix. The Schedule 13G carries a placeholder CUSIP of all zeros, which is consistent with a company that has become an SEC reporting company without a listed, CUSIP-bearing security. source
What this page is not
It is not a complete register. It lists the holders who happen to be inside the researched set and disclosed the stake themselves. A private company can have many other shareholders, and nothing here rules them out: venture investors, founders and employees usually appear in no public filing at all. Percentages are of Ionetix Corp where a holder stated one, and are missing where no holder did.