Andrew Merriman Buys $21.9K of Castellum Inc (CTM) — SEC Form 4, Nov 10, 2026

Open-Market Net Purchase · SEC Form 4
+$21,855

Equity position changed by +8.5%

Reporting Owner
TXN 2026-11-10 · FILED 2026-11-10
Equity Position 640K sh 589,927 → 639,927
Equity Change +8.5% shares held after vs before
Filing Lag 0 business days within 2-day SEC deadline
Form 4 · Statement of Changes in Beneficial Ownership
Filing Date
2026-11-10
Report Date
2026-11-10
Accession No.
0001877939-26-000102
Accepted At
2026-11-10 21:05 UTC
Reporting Owner
Name Relationship
Andrew Merriman CIK 0002036177
COO
Andrew Merriman at Castellum Inc Full insider history
Bought (12 mo) $57,990
Sold (12 mo) —
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2026-03-27 Buy +$1,285 View
All filings by this insider at Castellum Inc
Non-Derivative Securities Transactions
Title Date Type Shares Price Net Total Post-Txn Ownership
Common Stock 2026-11-10 P - Purchase 50,000 A $0.44 +$21,855 639,927 Direct
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All Castellum Inc insider activity
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View Original SEC Filing