| $255M | ||
| $48M | ||
| $38M | ||
| $37M | ||
| $34M | ||
| $34M |
Buys | $48,663 | 13 | 48 |
Sells | $768,310 | 14 | 52 |
| Merriman Andrew | Chief Operating Officer | 5 | $36,135 | 0 | $0 | $36,135 |
| Ives Glen R | President | 4 | $9,563 | 0 | $0 | $9,563 |
| Bell David T | Chief Financial Officer | 2 | $1,483 | 0 | $0 | $1,483 |
| MARTIN TAMMY L | General Counsel and Secretary | 2 | $1,483 | 0 | $0 | $1,483 |
| McMillen Charles Thomas | director | 0 | $0 | 2 | $65,228 | $-65,228 |
| WRIGHT JAY O | General Counsel, Secretary | 0 | $0 | 12 | $703,082 | $-703,082 |
Castellum, Inc. is a firm specializing in providing advanced services across critical domains such as cybersecurity, information technology, electronic warfare, and both information warfare and operations. Its comprehensive suite of capabilities encompasses intelligence analysis, full-lifecycle software development and engineering, strategic program management, mission planning, robust information assurance, and specialized support for cybersecurity policy, alongside sophisticated data analytics. The company caters to a diverse clientele, …
Over the last 12 months, insiders at Castellum, Inc. have bought $48,663 and sold $768,310 worth of Castellum, Inc. stock.
On average, over the past 5 years, insiders at Castellum, Inc. have bought $2.28B and sold $1.1B worth of stock each year.
Highest buying activity among insiders over the last 12 months: Merriman Andrew (Chief Operating Officer) — $36,135. Ives Glen R (President) — $9,563. Bell David T (Chief Financial Officer) — $1,483.
The last purchase of 1,396 shares for transaction amount of $747 was made by Merriman Andrew (Chief Operating Officer) on 2026‑10‑01.
| 2026-10-01 | Merriman Andrew | Chief Operating Officer | 1,396 0.0013% | $0.54 | $747 | -7.74% | ||
| 2026-10-01 | Ives Glen R | President | 1,700 0.0015% | $0.54 | $910 | -7.74% | ||
| 2026-10-01 | Bell David T | Chief Financial Officer | 1,396 0.0013% | $0.54 | $747 | -7.74% | ||
| 2026-10-01 | MARTIN TAMMY L | General Counsel and Secretary | 1,396 0.0013% | $0.54 | $747 | -7.74% | ||
| 2026-09-09 | Merriman Andrew | Chief Operating Officer | 50,000 0.0545% | $0.62 | $30,972 | +1.57% | ||
| 2026-07-01 | Merriman Andrew | Chief Operating Officer | 1,202 0.0011% | $0.61 | $736 | -14.89% | ||
| 2026-07-01 | Ives Glen R | President | 1,262 0.0011% | $0.61 | $772 | -14.89% | ||
| 2026-07-01 | Bell David T | Chief Financial Officer | 1,202 0.0011% | $0.61 | $736 | -14.89% | ||
| 2026-07-01 | MARTIN TAMMY L | General Counsel and Secretary | 1,202 0.0011% | $0.61 | $736 | -14.89% | ||
| 2026-03-27 | Merriman Andrew | Chief Operating Officer | 2,000 0.0022% | $0.64 | $1,285 | +5.23% | ||
| 2026-03-27 | Ives Glen R | President | 2,000 0.0021% | $0.62 | $1,231 | +5.23% | ||
| 2026-03-26 | Ives Glen R | President | 10,000 0.0109% | $0.66 | $6,649 | -0.38% | ||
| 2026-03-25 | Sale | McMillen Charles Thomas | director | 30,000 0.032% | $0.70 | $21,129 | -6.35% | |
| 2026-03-18 | Sale | McMillen Charles Thomas | director | 55,000 0.059% | $0.80 | $44,099 | -16.96% | |
| 2026-03-18 | Merriman Andrew | Chief Operating Officer | 3,000 0.0032% | $0.80 | $2,395 | -16.96% | ||
| 2025-12-19 | Sale | WRIGHT JAY O | General Counsel, Secretary | 30,000 0.0316% | $1.05 | $31,500 | -34.69% | |
| 2025-12-16 | Sale | WRIGHT JAY O | General Counsel, Secretary | 12,000 0.0131% | $1.07 | $12,876 | -32.56% | |
| 2025-12-15 | Sale | WRIGHT JAY O | General Counsel, Secretary | 6,000 0.0066% | $1.10 | $6,618 | -33.83% | |
| 2025-12-12 | Sale | WRIGHT JAY O | General Counsel, Secretary | 11,000 0.0122% | $1.16 | $12,749 | -36.82% | |
| 2025-12-11 | Sale | WRIGHT JAY O | General Counsel, Secretary | 50,000 0.0527% | $1.16 | $58,050 | -40.07% |
| WRIGHT JAY O | General Counsel, Secretary | 7134973 7.5278% | $3.42M | 15 | 29 | +142.94% |
| Merriman Andrew | Chief Operating Officer | 589927 0.6224% | $283,164.96 | 5 | 0 | |
| McMillen Charles Thomas | director | 231015 0.2437% | $110,887.20 | 1 | 2 | <0.0001% |
| Ives Glen R | President | 202578 0.2137% | $97,237.44 | 4 | 0 | |
| Bell David T | Chief Financial Officer | 18651 0.0197% | $8,952.48 | 2 | 0 | |
| MARTIN TAMMY L | General Counsel and Secretary | 16427 0.0173% | $7,884.96 | 2 | 0 | |
| Fuller Mark C | Former Officer and Affiliate | 6113659 6.4503% | $2.93M | 2 | 4 | <0.0001% |
| Kaunitz Emil | director | 1984271 2.0935% | $952,450.08 | 1 | 1 | <0.0001% |
| Champoux Bernard S | director | 104536 0.1103% | $50,177.28 | 3 | 0 | <0.0001% |
| Frost Patricia | director | 62920 0.0664% | $30,201.60 | 1 | 0 | <0.0001% |
$3,859,348 | 156 | 25.12% | $73.99M | |
$2,680,150 | 112 | 7.67% | $1.44B | |
$4,899,455 | 111 | 12.66% | $69.99M | |
$13,756,920 | 51 | 13.25% | $290.96M | |
$12,404,920 | 42 | 9.97% | $384.89M |
| Increased Positions | 21 | +43.75% | 5M | +62.15% |
| Decreased Positions | 19 | -39.58% | 870,036 | -10.15% |
| New Positions | 9 | New | 488,333 | New |
| Sold Out Positions | 7 | Sold Out | 347,631 | Sold Out |
| Total Postitions | 50 | +4.17% | 13M | +52% |
| Essex Investment Management Co Llc | $2,104.00 | 2.27% | 2.15M | +63,117 | +3.02% | 2025-09-30 |
| Vanguard Group Inc | $1,249.00 | 1.35% | 1.28M | +225,937 | +21.48% | 2025-09-30 |
| Geode Capital Management, Llc | $707.00 | 0.76% | 723,527 | +124,329 | +20.75% | 2025-09-30 |
| Meridian Wealth Management, Llc | $669.00 | 0.72% | 684,600 | +67,800 | +10.99% | 2025-09-30 |
| Legato Capital Management Llc | $607.00 | 0.65% | 621,409 | 0 | 0% | 2025-09-30 |
| Goldman Sachs Group Inc | $360.00 | 0.39% | 368,632 | +368,632 | New | 2025-09-30 |
| Bank Of New York Mellon Corp | $342.00 | 0.37% | 350,002 | -149,999 | -30% | 2025-09-30 |
| Jane Street Group, Llc | $328.00 | 0.35% | 335,704 | +140,971 | +72.39% | 2025-09-30 |
| State Street Corp | $297.00 | 0.32% | 303,900 | +147,900 | +94.81% | 2025-09-30 |
| Blackrock, Inc. | $259.00 | 0.28% | 265,486 | +138,065 | +108.35% | 2025-09-30 |