Greedy Insider
Castellum, Inc. (CTM) Insider Trades and Scores
Castellum, Inc. (CTM) insider trades: since Dec 10, 2025, Greedy Insider recorded 17 open-market buys and 8 sales on Form 4 from 6 insiders. The strongest recent filing scored 88 (Strong).
Who bought and who sold
Across the last 25 scoreable Form 4 transactions in CTM, 17 were open-market purchases and 8 were sales. The table lists the most recent filings with each one's Greediness Score, so the structurally unusual trades are easy to spot first.
| Insider | Role | Type | Shares | Date | Score | ||
|---|---|---|---|---|---|---|---|
| Bell David T | CFO | Buy | 1396.0 | 747.1392 | 2026-10-01 | 83 | View |
| Merriman Andrew | COO | Buy | 1396.0 | 747.1392 | 2026-10-01 | 61 | View |
| Ives Glen R | President | Buy | 1700.0 | 909.84 | 2026-10-01 | 69 | View |
| MARTIN TAMMY L | General Counsel and Secretary | Buy | 1396.0 | 747.1392 | 2026-10-01 | 70 | View |
| Merriman Andrew | COO | Buy | 40000.0 | 24772.0 | 2026-09-09 | 86 | View |
| Merriman Andrew | COO | Buy | 10000.0 | 6200.0 | 2026-09-09 | 72 | View |
| Merriman Andrew | COO | Buy | 1202.0 | 735.624 | 2026-07-01 | 67 | View |
| Ives Glen R | President | Buy | 1262.0 | 772.344 | 2026-07-01 | 66 | View |
| MARTIN TAMMY L | General Counsel and Secretary | Buy | 1202.0 | 735.624 | 2026-07-01 | 71 | View |
| Bell David T | CFO | Buy | 1202.0 | 735.624 | 2026-07-01 | 84 | View |
The strongest recent filing
Ives Glen R (President) bought 10,000 shares of Castellum, Inc. on Mar 26, 2026, a filing that scored 88 (Strong). It scored Strong because a senior insider was trading and it was direct personal ownership. The score describes the filing, not future returns. This is not investment advice.
Cluster activity
A cluster buy is present: 4 insiders (MARTIN TAMMY L, Bell David T, Merriman Andrew, Ives Glen R) traded CTM the same direction within a 7-day window. Shared conviction is a stronger structural signal than a lone trade.
How this compares with Castellum, Inc.'s own history
Open-market buys make up 68% of the 25 scoreable CTM transactions on record between Dec 10, 2025 and Oct 1, 2026. Comparing a filing with the company's own buy/sell mix is how you tell a routine disposal from an unusual accumulation.
Methodology and sources
Scores come from six published, user-adjustable factors (insider role, cluster activity, trade size versus the insider's own history, position impact, filing urgency, and direct versus indirect ownership). The score describes the filing, not future returns. This is not investment advice.
Key facts
- Scoreable Form 4 transactions on record: 25
- Open-market buys: 17
- Sales: 8
- Distinct insiders: 6
- Strongest recent Greediness Score: 88 (Strong)
Primary sources
Related
- Strongest filing
- CTM in the live feed
- How the Greediness Score works
- What is a cluster buy?
- Form 4 transaction codes
The score describes the filing, not future returns. This is not investment advice.