# EDGAR Filing Document

**Accession Number:** 0001877939
**File Stem:** 0001877939-26-000044
**Filing Date:** 2026-5
**Character Count:** 6104
**Document Hash:** 941231f6a89e23ff41c7528d26ba2661
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001877939-26-000044.hdr.sgml**: 20260520

**ACCESSION NUMBER**: 0001877939-26-000044

**CONFORMED SUBMISSION TYPE**: 8-K

**PUBLIC DOCUMENT COUNT**: 11

**CONFORMED PERIOD OF REPORT**: 20260519

**ITEM INFORMATION**: Submission of Matters to a Vote of Security Holders

**FILED AS OF DATE**: 20260520

**DATE AS OF CHANGE**: 20260520

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Castellum, Inc.
- **CENTRAL INDEX KEY:** 0001877939
- **STANDARD INDUSTRIAL CLASSIFICATION:** SERVICES-MANAGEMENT CONSULTING SERVICES [8742]
- **ORGANIZATION NAME:** 07 Trade & Services
- **EIN:** 274079982
- **STATE OF INCORPORATION:** NV
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 8-K
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-41526
- **FILM NUMBER:** 261003829

**BUSINESS ADDRESS:**
- **STREET 1:** 1934 OLD GALLOWS ROAD
- **STREET 2:** SUITE 350
- **CITY:** VIENNA
- **STATE:** VA
- **ZIP:** 22182
- **BUSINESS PHONE:** (703) 752-6157

**MAIL ADDRESS:**
- **STREET 1:** 1934 OLD GALLOWS ROAD
- **STREET 2:** SUITE 350
- **CITY:** VIENNA
- **STATE:** VA
- **ZIP:** 22182

?xml version='1.0' encoding='ASCII'? ctm-20260519

**UNITED STATES**

**SECURITIES AND EXCHANGE COMMISSION**

**Washington, D.C. 20549**

**FORM 8-K**

**CURRENT REPORT**

Pursuant to Section 13 or 15(d) of the Securities and Exchange Act of 1934

Date of Report (Date of earliest event reported): 5/19/2026

**<u>CASTELLUM, INC.</u>**

(Exact name of Registrant as specified in its charter)

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| | | |
|:---|:---|:---|
| **Nevada** | **001-41526** | **27-4079982** |
| (State or other jurisdiction<br>of incorporation) | (Commission<br>File Number) | (IRS Employer<br>Identification No.) |

---

**1934 Old Gallows Road, Suite 350**

**Vienna, VA 22182**

(Address of principal executive offices, including zip code)

**703-752-6157**

(Registrant's telephone number, including area code)

Check the appropriate box below if the 8-K filing is intended to simultaneously satisfy the filing obligations of the registrant under any of the following provisions:

☐ Written communication pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13(c)).

Securities registered pursuant to Section 12(b) of the Act:

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| | | |
|:---|:---|:---|
| **Title of each class** | **Trading Symbol(s)** | **Name of each exchange on which registered** |
| Common stock, par value $0.0001 per share | CTM | NYSE American LLC |

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Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR §230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR §240.12b-2).

Emerging growth company ☒

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☒

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**Item 5.07 Submission of Matters to a Vote of Security Holders.**

The Company held its annual meeting of stockholders on May 19, 2026 (the "2026 Annual Meeting"), at which three proposals were submitted to the Company's stockholders. The proposals are described in detail in the Company's proxy statement for the 2026 Annual Meeting filed with the Securities and Exchange Commission on April 7, 2026 (the "2026 Proxy Statement"). A quorum of the Company's common shares was present for the 2026 Annual Meeting, and the final results for the votes regarding the proposals are set forth below.

***Proposal 1*** - Stockholders elected five directors of the Company to hold office until the next Annual Meeting of Stockholders and until their successors are duly elected and qualify. The name of each director elected, and the votes cast for such individuals are set forth below:

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| | | | |
|:---|:---|:---|:---|
| **<u>Name</u>** | **<u>For</u>** | **<u>Withheld</u>** | **<u>Broker Non-Votes</u>** |
| Mark S. Alarie | 26773763 | 6942753 | 22789172 |
| John F. Campbell | 26063019 | 7653497 | 22789172 |
| Bernard S. Champoux | 26970017 | 6746499 | 22789172 |
| Glen R. Ives | 29097115 | 4619401 | 22789172 |
| C. Thomas McMillen | 26288648 | 7427868 | 22789172 |

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***Proposal 2*** - Stockholders approved a proposal to ratify the Company's appointment of RSM US LLP as the Company's independent registered public accounting firm for the fiscal year ended December 31, 2026. The votes regarding Proposal 2 are set forth below:

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| | | |
|:---|:---|:---|
| **<u>For</u>** | **<u>Against</u>** | **<u>Abstentions</u>** |
| 53,771,662 | 2,553,667 | 180,359 |

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***Proposal 3 -*** Stockholders approved an amendment to the Castellum, Inc. Second Amended 2021 Stock Incentive Plan to increase the aggregate number of shares reserved for issuance under the plan to 13,000,000. The votes regarding Proposal 3 are set forth below:

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| | | | |
|:---|:---|:---|:---|
| **<u>For</u>** | **<u>Against</u>** | **<u>Abstentions</u>** | **<u>Broker Non-Votes</u>** |
| 19,780,876 | 13,632,126 | 303,514 | 22,789,172 |

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**Item 9.01 Financial Statements and Exhibits.**

(d) <u>Exhibits</u>.

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| | |
|:---|:---|
| ***Exhibit No.*** | ***Exhibit Title*** |
| 104 | Cover Page Interactive Data File (embedded within the Inline XBRL document). |

---

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**SIGNATURES**

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned, hereunto duly authorized.

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| | | |
|:---|:---|:---|
| | **<u>CASTELLUM, INC.</u>** | **<u>CASTELLUM, INC.</u>** |
| Date: May 20, 2026 | By: | */s/ Glen R. Ives* |
|  | Name: | Glen R. Ives |
|  | Title: | Chief Executive Officer (Principal Executive Officer) |

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