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Insider Cluster (2 insiders) ·Filed Mar 18, 2026

CTM

Castellum, Inc.
NEUTRAL
Impact 3/10
Horizonimmediate Processed7mo ago
Insider cluster: 2 insiders, $46K total
Actionable Insight • Neutral

No material financial impact; the small size and offsetting nature of the trades suggest personal financial planning rather than a signal about company prospects. Monitor for larger or more concentrated transactions.

DirectionNeutral
Confidencehigh
Horizonimmediate
Final — all horizons settled through T+60d
CTM ▼ -7.83% at T+60d
NEUTRAL call -7.83% · α vs SPY -22.23% · entry $0.7765 → $0.7157
Entry = T+0 close
Mar 18, 2026
via day close
T+1d
-3.59%
call -3.59% · α -1.89%
$0.7486
settled 7mo ago
T+5d
-15.74%
call -15.74% · α -13.51%
$0.6543
settled 7mo ago
T+20d
-6.05%
call -6.05% · α -13.68%
$0.7295
settled 6mo ago
T+60d
-7.83%
call -7.83% · α -22.23%
$0.7157
settled 5mo ago

Price Chart

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Executive Summary

A director sold $44K of CTM shares while the COO bought $2.4K in open-market transactions on the same day. The trades are small in absolute value and represent less than 0.1% of the company's $73M market cap, indicating routine personal transactions.

Key Financial Metrics

Direction
selling
Total Value
$41.7K
Insiders
2

Key Facts

  • Director McMillen sold 55,000 shares for $44,099 in an open-market transaction.
  • COO Merriman purchased 3,000 shares for $2,394.90, also in the open market.
  • Total net dollar value of the cluster is $41,704 in sales after offsetting purchase.
  • Combined transaction value represents ~0.06% of CTM's $73M market cap.

Financial Impact

$41.7K net selling by insiders

insider ownershipmarket sentiment

Risk Factors

  • Perception of insider divergence: a director selling while an officer buys could be misinterpreted as conflicting sentiment.
  • Low liquidity in a small-cap stock like CTM could amplify short-term price swings from even minor trades.

Market Snapshot

Exchange
NYSE

Investment Themes

Services

Documents Analyzed

This report is based on 1 SEC document filed with EDGAR.

DocumentAccession Number
CONTEXT: Insider Cluster Data (2 trades, 7d window)cluster-CTM-1774036904965
15 reports for CTM
Performance horizon
50% Hit rate @ T+5 2 of 4 directional calls Went positive at some point 2 of 4 best @ T+5▲ +5.11%Jun 15, 2026
Filters
Rows
Reports for CTM — sortable, filterable
TypeNow
Oct 13, 2026
14d ago
8-K
NEUTRAL ★ 2/10
$0.5785 $0.5868▲ +1.43%▲ +0.98%$0.5137 (−11.20%)
Jul 31, 2026
12w ago
8-K
NEUTRAL ★ 2/10
$0.7350 $0.6101▼ −16.99%▼ −19.02%$0.5137 (−30.11%)
Jul 31, 2026
12w ago
Press Release
NEUTRAL ★ 1/10
$0.7177 $0.6151▼ −14.30%▼ −17.81%$0.5137 (−28.42%)
Jul 2, 2026
16w ago
8-K
NEUTRAL ★ 3/10
$0.6950 $0.6710▼ −3.45%▼ −4.38%$0.5137 (−26.09%)
Jun 24, 2026
17w ago
8-K
BULLISH ★ 5/10
$0.7237 $0.7295▲ +0.80%▼ −0.76%$0.5137 (−29.02%)
Jun 15, 2026
19w ago
Press Release
BULLISH ★ 6/10
$0.7157 $0.7523▲ +5.11%▲ +6.50%$0.5137 (−28.22%)
May 18, 2026
23w ago
8-K
NEUTRAL ★ 4/10
$0.6580 $0.8100▲ +23.10%▲ +21.48%$0.5137 (−21.93%)
May 13, 2026
23w ago
8-K
MIXED ★ 6/10
$0.6710 $0.6520▼ −2.83%▼ −1.67%$0.5137 (−23.44%)
May 8, 2026
24w ago
Press Release
NEUTRAL ★ 5/10
$0.7530 $0.6880▼ −8.63%▼ −10.10%$0.5137 (−31.78%)
Apr 23, 2026
26w ago
8-K
NEUTRAL ★ 4/10
$0.6900 $0.6650▼ −3.62%▼ −4.53%$0.5137 (−25.55%)
Showing 10 of 15

US Market Status

Market Closed — Opens Wed (16h 9m)

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Report published Mar 20, 2026