Niron Magnetics, Inc.
Other Technology · Minneapolis, Minnesota
Niron Magnetics, Inc. is a other technology company based in Minneapolis, Minnesota, incorporated in 2013. It has reported $106.0 million raised across 5 Form D filings with the SEC, most recently in 2024.
Niron Magnetics delivers rare-earth-free permanent magnets built with high-performance iron nitride using abundant materials and domestic supply.
| Date | Round | Amount | Raised to date | Lead investor | Source |
|---|---|---|---|---|---|
| 2024-01-03 | —+1 amd | $90.6M | $106.0M | SEC Form D | |
| 2019-09-09 | — | $3.9M | $15.3M | SEC Form D | |
| 2016-12-28 | — | $5.0M | $11.4M | SEC Form D | |
| 2016-06-21 | — | $6.4M | $6.4M | SEC Form D |
SEC rows are Form D filings, where the amount is what was actually sold and amendments update a round rather than adding one. Press rows are split between company-issued releases or wires and editorial or third-party coverage. The total is therefore a floor: a round nobody reported is a round we cannot see. A buyout or control change appears in the timeline but is never added to the total: that money goes to shareholders, not into the company.
Form D is the notice a company files with the SEC when it sells securities without registering them. It reports the amount sold, not a valuation. Figures here are what the filing says. Where a filing is silent, the field is left blank rather than estimated. “Total raised” adds press-reported rounds that never appear in a filing, so it is a floor rather than an audited sum: press amounts are the figures the company announced, and a round nobody reported is a round we cannot see.