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Exum Instruments, Inc.

Exum makes instruments for scientists and engineers to analyze solid materials.

Updated Nov 10, 2026·Latest SEC filing Jul 2, 2026·Suggest an edit

About Exum

Exum is a private company based in Lakewood, Colorado. It has reported $17,098,938 raised in six offerings on Form D since December 2019. Its chief executive is Jeffrey Williams.

Funding Rounds (SEC Form D)

First saleFiled with SECAmount soldInvestorsAvg. checkTermsFiling
Jun 17, 2026Jul 2, 2026$3,401,271of $6.7M target8$425KEquity, Includes conversion of outstanding convertible promissory notes.Rule 506(b)Form D ↗
Dec 16, 2025Jan 12, 2026$120,000of $5.0M target6$20,000Options, Securities on exercise, Convertible promissory notes convertible into equity securities of issuer.Rule 506(b)Form D ↗
Apr 3, 2025Apr 8, 2025$1,139,974of $3.0M target5$227KEquityRule 506(b)Form D ↗
Jul 9, 2024Jul 19, 2024$1,549,988of $1.9M target6$258KEquityRule 506(b)Form D ↗
Apr 17, 2023Mar 22, 2024$10,287,717of $10.6M target30$342KEquity, Includes conversion of outstanding simple agreements for future equity.Rule 506(b)Form D ↗
Nov 27, 2019Dec 12, 2019$599,988of $1.5M target4$149KEquityRule 506(b)Form D ↗
Total, six offerings$17,098,938

First sale is the date the first investor in the offering committed to invest. Companies must file Form D within 15 days of that date, so filing dates run later.

Leadership Team

Executive officers and directors listed on Exum's Form D filed Jul 2, 2026.

JW
Jeffrey Williams
Ceo/cto and director
JT
James Thorson
Executive officer and director
Also a business advisor and director at Horne Technologies.

Earlier filings also listed Michael Minyard (executive officer, last listed Jan 2026), Jeffrey Gentsch (director, last listed Jan 2026), David Clouse (director, last listed Jan 2026), Doug Campbell (director, last listed Apr 2025) and Stephen Strickland (director, last listed Dec 2019).

Sources

  1. SECExum Instruments, Inc. filing history
  2. CompanyExum Instruments about