Castellum, Inc. (CTM)
NYSE: CTM · Services-Management Consulting Services · Vienna, VA · filing with the SEC since 2021
Who owns Castellum, Inc.
As filed with the SECHolders of 5% or more
0
No Schedule 13D or 13G naming this company is on file.
Directors and officers
10
report now, of 13 people on the record since 2022. Their holdings as a group are not read here.
Institutions as a whole
n/a
The record does not read the share held by managers that file Form 13F, so none is printed and no split of the rest is estimated. What it holds is the 0 named at left.
Holders of 5% or moreshare of the class, as filed
No holder of 5% or more is on file in a Schedule 13D or 13G naming this company.
What CTM reports owning in othersstakes of 5% or more, and other ties
Other ties the annual report names
Joint Venture, Other
An investee · investee · invested in, named in the 10-K filed Mar 9, 2026
Minority Ownership Interest Joint Venture
An investee · investee · invested in, named in the 10-K filed Mar 9, 2026
Global Technology Management Resources, Inc
A company bought · acquisition · Mar 2025 · owns, named in the 10-K filed Mar 9, 2026
Corvus
A company bought · acquisition · Dec 2023 · owns, named in the 10-K filed Mar 9, 2026
Mfsi
A company bought · acquisition · Dec 2023 · owns, named in the 10-K filed Mar 9, 2026
Ssi
A company bought · acquisition · Dec 2023 · owns, named in the 10-K filed Mar 9, 2026
The Albers Group, LLC
A company bought · acquisition · Nov 2021 · owns, named in the 10-K filed Mar 9, 2026
4 subsidiaries in 1 country, from the list filed with the 10-K filed Mar 9, 2026.
Insider tradesForm 4
14sales
15purchases
0sales on a scheduled plan
2people selling
$800,000sold, in dollars
$100,000bought, in dollars
Open-market trades on Form 4 from Nov 10, 2025 to Nov 10, 2026. A scheduled plan is a selling program set in advance under SEC rule 10b5-1. The trades are listed as filed and do not feed the grade.
By calendar yearSoldBought
2026 runs to Nov 10, 2026. Dollars as filed, summed by the transaction date.
People who traded in the window6 of 13 on the roster
| Person | Role as filed | Sales | Sold | On a plan | Buys | Bought |
|---|---|---|---|---|---|---|
| Wright Jay O | General Counsel, Secretary | 12 | $700,000 | 0 | 0 | $0 |
| Mcmillen Charles Thomas | director | 2 | $100,000 | 0 | 0 | $0 |
| Merriman Andrew | Chief Operating Officer | 0 | $0 | 0 | 7 | $100,000 |
| Ives Glen R | President | 0 | $0 | 0 | 4 | $0 |
| Bell David T | Chief Financial Officer | 0 | $0 | 0 | 2 | $0 |
| Martin Tammy L | General Counsel and Secretary | 0 | $0 | 0 | 2 | $0 |