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Compensation award — excluded from discretionary-purchase analysis.
Written from the filing's own figures. OQRO describes what was reported and never tells you what to buy or sell.
View the official recordSEC Form 4 — Statement of Changes in Beneficial OwnershipAll the details
Dates, kept separate
Transaction date
Mar 31, 2026
Reporting period
Not applicable
Filed with the SEC
Mar 31, 2026
OfficerGrant / award
Context
Classification
grant award
Code A — grant or award
Planned / mechanical clue
Footnote references an employee stock purchase plan
Only flagged when a footnote says so; never inferred
Source receipt
Record ID
0002036177-26-000004
Filed / recorded
Mar 31, 2026, 8:08 PM UTC
Added to OQRO
Oct 8, 2026, 1:45 AM UTC
Parser
form4-xml-v2
Data quality
Verified: identifiers matched exactly
Issuer
Castellum, Inc.
Issuer CIK
1877939
Ticker
CTM
Reporting person
Andrew Merriman
Relationship
Officer
Officer title
Chief Operating Officer
Security
Common Stock
Table
Non-derivative (Table I)
Transaction date
Mar 31, 2026
Transaction code
A
Shares / units
1,329
Price per share
$0.4544
Acquired / disposed
Acquired (A)
Shares owned after
537,329
Ownership form
Direct
Amendment
No
Footnotes from the filing
Pursuant to the terms of the Castellum, Inc. 2025 Employee Stock Purchase Plan, the reporting person purchased 1,329 shares of common stock of the Registrant. The per share purchase price was calculated at a discount of fifteen percent to the closing price of the Registrant's common stock as quoted on the NYSE American LLC on March 30, 2026.
Every dated public record OQRO holds about the company from 60 days before to 120 days after, oldest first. It shows what was going on; none of it is a stated reason for the trade.
