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Castellum (CTM) stock: insider trades, news & valuation

Information Technology · Net selling
Close · Oct 9, 2026 $0.62 +1.8% on the day -40.7% over 12 months 52-week range $0.54 – $1.31

Share price and insider trades

CTM closeInsider buyInsider sale
0.500.751.001.251.50NovDecJan 2026FebMarAprMayJunJulAugSepOctBought $2,400 on 2026-03-18 · Andrew MerrimanBought $2,520 on 2026-03-27 · Andrew Merriman, Glen R IvesBought $2,969 on 2026-07-01 · Andrew Merriman, David T Bell, Glen R Ives, Tammy L MartinBought $3,151 on 2026-10-01 · Andrew Merriman, David T Bell, Glen R Ives, Tammy L MartinBought $6,600 on 2026-03-26 · Glen R IvesSold $6,600 on 2025-12-15 · Jay O WrightSold $11,600 on 2025-11-17 · Jay O WrightSold $12,760 on 2025-12-12 · Jay O WrightSold $12,840 on 2025-12-16 · Jay O WrightSold $19,080 on 2025-11-28 · Jay O WrightSold $21,000 on 2026-03-25 · Charles Thomas McmillenBought $31,000 on 2026-09-09 · Andrew MerrimanSold $31,500 on 2025-12-19 · Jay O WrightSold $36,750 on 2025-12-01 · Jay O WrightSold $44,000 on 2026-03-18 · Charles Thomas McmillenSold $58,000 on 2025-12-11 · Jay O WrightSold $70,800 on 2025-11-11 · Jay O WrightSold $103,500 on 2025-11-14 · Jay O WrightSold $153,670 on 2025-12-10 · Jay O WrightSold $187,200 on 2025-11-13 · Jay O Wright
Bought, 12 months$25K
Sold, 12 months$769K
Insiders buying1
Insiders selling2

Castellum insider trading at a glance (Oct 9, 2026): in the past 12 months, 1 insider bought $25K and 2 sold $769K of CTM stock on the open market.

CTM insider buying and selling by quarter

Open-market purchases (green, above the line) and sales (red, below), by trade date.

Q4 2025: $704K sold (12 trades)Q4 2025Q1 2026: $12K bought (4 trades)$12KQ1 2026: $65K sold (2 trades)Q1 2026Q2 2026Q3 2026: $34K bought (6 trades)$34KQ3 2026Q4 2026: $3K bought (4 trades)$3KQ4 2026
QuarterBoughtPurchasesSoldSales
Q4 2026$3K4—0
Q3 2026$34K6—0
Q2 2026—0—0
Q1 2026$12K4$65K2
Q4 2025—0$704K12

Valuation, profit and volume

P/E (trailing)n/aSector median 32.1
Market value$59.0MInformation Technology Services
Profit margin-4.1%Revenue growth -1.1%
Volume vs. 50-day0.5×Last 5 sessions
Insiders' paper profit−$199On all tracked purchases -0.4%

Summary

Over the past 12 months, 1 Castellum, Inc. insider reported open-market purchases totaling $25K, while 2 insiders reported sales totaling $769K. 0 of 14 recorded sales were made under pre-scheduled Rule 10b5-1 trading plans, which are usually less informative than discretionary sales.

CTM stock news and SEC filings

Recent 8-K filings and headlines. Tone is scored from the headline wording; “Policy” marks regulatory, trade or government topics.

Insider transactions

Open-market purchases and sales.

Filed Insider Type Shares Price Value Since Score
Oct 1SEC Glen R IvesPresident Buy 1,700202,578 held (+1%) $0.54 $910 +16.4% —
Oct 1SEC Andrew MerrimanCOO Buy 1,396589,927 held (+0%) $0.54 $747 +16.4% —
Oct 1SEC David T BellCFO Buy 1,39618,651 held (+8%) $0.54 $747 +16.4% —
Oct 1SEC Tammy L MartinGeneral Counsel Buy 1,39616,427 held (+9%) $0.54 $747 +16.4% —
Sep 9SEC Andrew MerrimanCOO Buy 40,000578,531 held (+7%) $0.62 $25K +0.5% —
Sep 9SEC Andrew MerrimanCOO Buy 10,000588,531 held (+2%) $0.62 $6K +0.5% —
Jul 2SEC Glen R IvesPresident Buy 1,262200,878 held (+1%) $0.61 $770 +2.1% —
Jul 2SEC Tammy L MartinGeneral Counsel Buy 1,20215,031 held (+9%) $0.61 $733 +2.1% —
Jul 2SEC David T BellCFO Buy 1,20217,255 held (+7%) $0.61 $733 +2.1% —
Jul 2SEC Andrew MerrimanCOO Buy 1,202538,531 held (+0%) $0.61 $733 +2.1% —
Mar 27SEC Charles Thomas McmillenDirector Sell 30,000231,015 held (−11%) $0.70 $21K -11.0% —
Mar 27SEC Andrew MerrimanCOO Buy 2,000536,000 held (+0%) $0.64 $1K -2.7% —
Mar 27SEC Glen R IvesPresident Buy 2,000199,616 held (+1%) $0.62 $1K +0.5% —
Mar 26SEC Glen R IvesPresident Buy 10,000197,616 held (+5%) $0.66 $7K -5.6% —
Mar 20SEC Charles Thomas McmillenDirector Sell 55,000261,015 held (−17%) $0.80 $44K -22.1% —
Mar 18SEC Andrew MerrimanCOO Buy 3,000534,000 held (+1%) $0.80 $2K -22.1% —
Dec 22SEC Jay O WrightGeneral Counsel Sell 30,0007,134,973 held (−0%) $1.05 $32K -40.7% —
Dec 17SEC Jay O WrightGeneral Counsel Sell 12,0007,164,973 held (−0%) $1.07 $13K -41.8% —
Dec 17SEC Jay O WrightGeneral Counsel Sell 6,0007,176,973 held (−0%) $1.10 $7K -43.4% —
Dec 12SEC Jay O WrightGeneral Counsel Sell 127,0007,243,973 held (−2%) $1.21 $154K -48.5% —
Dec 12SEC Jay O WrightGeneral Counsel Sell 50,0007,193,973 held (−1%) $1.16 $58K -46.3% —
Dec 12SEC Jay O WrightGeneral Counsel Sell 11,0007,182,973 held (−0%) $1.16 $13K -46.3% —
Dec 2SEC Jay O WrightGeneral Counsel Sell 35,0007,370,973 held (−0%) $1.05 $37K -40.7% —
Dec 2SEC Jay O WrightGeneral Counsel Sell 18,0007,405,973 held (−0%) $1.06 $19K -41.2% —
Nov 18SEC Jay O WrightGeneral Counsel Sell 90,0007,433,973 held (−1%) $1.15 $104K -45.8% —
Nov 18SEC Jay O WrightGeneral Counsel Sell 10,0007,423,973 held (−0%) $1.16 $12K -46.3% —
Nov 13SEC Jay O WrightGeneral Counsel Sell 160,0007,523,973 held (−2%) $1.17 $187K -46.8% —
Nov 13SEC Jay O WrightGeneral Counsel Sell 60,0007,683,973 held (−1%) $1.18 $71K -47.2% —

Insiders at Castellum, Inc.

InsiderBoughtSoldLast filingScore
Jay O WrightGeneral Counsel — $704K Dec 22, 2025 —
Andrew MerrimanCOO $36K — Oct 1, 2026 —
Charles Thomas McmillenDirector — $65K Mar 27, 2026 —
Glen R IvesPresident $10K — Oct 1, 2026 —
David T BellCFO $1K — Oct 1, 2026 —
Tammy L MartinGeneral Counsel $1K — Oct 1, 2026 —

Insider activity at other Information Technology companies

Same sector, ranked by insider buying in the last 90 days.

  • GRABGrab Holdings Ltd$30.8M bought
  • INTCIntel$10.0M bought
  • NYAXNayax Ltd.$9.1M bought
  • ODYSOdysight.ai Inc.$3.9M bought
  • ORCLOracle Corporation$3.5M bought
  • GLOOGloo Holdings, Inc.$3.3M bought

CTM stock: common questions

Are Castellum, Inc. insiders buying CTM stock?

In the past 12 months, 1 insiders reported open-market purchases of CTM worth $25K. The latest was President Glen R Ives bought $910 of CTM at $0.54.

Are Castellum, Inc. insiders selling CTM stock?

2 insiders reported sales worth $769K over the same period.

Where does this data come from?

Every transaction comes from Form 4 filings that insiders must submit to the SEC within two business days of a trade. We pull them from SEC EDGAR every night.

What is CTM's 52-week range?

Over the past year CTM has traded between $0.54 and $1.31. It last closed at $0.62 on Oct 9, 2026.