Exum Instruments, Inc.
Other Technology · Lakewood, Colorado
Exum Instruments, Inc. is a other technology company based in Lakewood, Colorado, incorporated in 2016. It has raised at least $16.0 million across 5 known rounds, of which $13.7 million was reported to the SEC on 5 Form D filings, most recently in 2026.
Exum pioneers instruments and software ecosystems for fast and cost-effective materials characterization. Massbox for LALI-TOF-MS offers unmatched analytical capabilities and ensures thorough analysis of diverse samples, accelerating development and discovery.
| Date | Round | Amount | Raised to date | Lead investor | Source |
|---|---|---|---|---|---|
| 2026-07-02 | — | $3.4M | $16.0M | SEC Form D | |
| 2026-01-12 | — | $120K | $12.6M | SEC Form D | |
| 2024-07-19 | — | $1.5M | $12.4M | SEC Form D | |
| 2024-03-22 | — | $10.3M | $10.9M | SEC Form D | |
| 2019-12-12 | — | $600K | $600K | 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.