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Castellum Inc (CTM)

Over the last 90 days, Castellum Inc. has seen a net insider selling of $53,667.5. Executives, however, reported a net buy of $11,560.5. Notable transactions include multiple sales by Charles Thomas McMillen and purchases by President Glen R Ives and COO Andrew Merriman.
Stock chart
Ticker: CTM Exchange: ASE


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Purchase Sale Planned purchase Planned sale Net purchase Net sale Activity signal Earnings
Top insiders
Trades
Merriman Andrew
Chief Operating Officer
1 purchase — total 1,285 USD
Buy 27 Mar 2026
Value US$4,954,046.77 | Price 471.95 | Shares 22,020
Buy 27 Mar 2026
Value US$3,476,353.43 | Price 463.99 | Shares 5,429
Buy 26 Mar 2026
Value US$6,649.00 | Price 0.66 | Shares 10,000
Sale 25 Mar 2026
Value US$21,129.00 | Price 0.70 | Shares 30,000
Sale 18 Mar 2026
Value US$44,099.00 | Price 0.80 | Shares 55,000
Buy 18 Mar 2026
Value US$2,394.90 | Price 0.80 | Shares 3,000
Proposed sale 17 Mar 2026
Value US$82.54 | Price 0.00 | Shares 110,028
Sale 19 Dec 2025
Value US$31,500.00 | Price 1.05 | Shares 30,000
Sale 16 Dec 2025
Value US$12,876.00 | Price 1.07 | Shares 12,000
Sale 15 Dec 2025
Value US$6,618.00 | Price 1.10 | Shares 6,000
Sale 12 Dec 2025
Value US$12,749.00 | Price 1.16 | Shares 11,000
Sale 11 Dec 2025
Value US$58,050.00 | Price 1.16 | Shares 50,000
Sale 10 Dec 2025
Value US$153,289.00 | Price 1.21 | Shares 127,000
Sale 1 Dec 2025
Value US$36,750.00 | Price 1.05 | Shares 35,000
Sale 28 Nov 2025
Value US$18,990.00 | Price 1.06 | Shares 18,000
Sale 17 Nov 2025
Value US$11,560.00 | Price 1.16 | Shares 10,000
Sale 14 Nov 2025
Value US$103,500.00 | Price 1.15 | Shares 90,000
Sale 13 Nov 2025
Value US$186,400.00 | Price 1.17 | Shares 160,000
Sale 11 Nov 2025
Value US$70,800.00 | Price 1.18 | Shares 60,000
Proposed sale 11 Nov 2025
Value US$1,016,000.00 | Price 1.27 | Shares 800,000
Sale 16 Sep 2025
Value US$55,500.00 | Price 1.11 | Shares 50,000
Sale 15 Sep 2025
Value US$55,000.00 | Price 1.10 | Shares 50,000
Sale 12 Sep 2025
Value US$81,760.00 | Price 1.12 | Shares 73,000
Sale 11 Sep 2025
Value US$100,800.00 | Price 1.12 | Shares 90,000
Sale 10 Sep 2025
Value US$78,400.00 | Price 1.12 | Shares 70,000
Sale 9 Sep 2025
Value US$168,000.00 | Price 1.12 | Shares 150,000
Sale 8 Sep 2025
Value US$280,254.24 | Price 1.12 | Shares 250,227
Sale 5 Sep 2025
Value US$50,190.84 | Price 1.08 | Shares 46,473
Sale 3 Sep 2025
Value US$560,000.00 | Price 1.12 | Shares 500,000
Sale 28 Aug 2025
Value US$25,104.00 | Price 1.05 | Shares 24,000
Sale 27 Aug 2025
Value US$41,600.00 | Price 1.04 | Shares 40,000
Sale 26 Aug 2025
Value US$41,600.00 | Price 1.04 | Shares 40,000
Sale 22 Aug 2025
Value US$46,800.00 | Price 1.04 | Shares 45,000
Sale 19 Aug 2025
Value US$132,300.00 | Price 1.05 | Shares 126,000
Sale 18 Aug 2025
Value US$243,000.00 | Price 1.08 | Shares 225,000
Proposed sale 18 Aug 2025
Value US$640,000.00 | Price 1.28 | Shares 500,000
Proposed sale 18 Aug 2025
Value US$640,000.00 | Price 1.28 | Shares 500,000
Sale 19 May 2025
Value US$524,000.00 | Price 1.05 | Shares 500,000
Proposed sale 19 May 2025
Value US$560,000.00 | Price 1.12 | Shares 500,000
Sale 19 May 2025
Value US$277,558.00 | Price 1.07 | Shares 259,400
Sale 6 Mar 2025
Value US$180,900.00 | Price 1.34 | Shares 135,000
Sale 6 Mar 2025
Value US$299,700.00 | Price 1.33 | Shares 225,000
Sale 5 Mar 2025
Value US$536,550.00 | Price 1.47 | Shares 365,000
Proposed sale 5 Mar 2025
Value US$490,500.00 | Price 0.98 | Shares 500,000
Sale 5 Mar 2025
Value US$410,575.00 | Price 1.49 | Shares 275,000
Proposed sale 5 Mar 2025
Value US$490,500.00 | Price 0.98 | Shares 500,000
Buy 4 Sep 2024
Value US$44,657.20 | Price 0.16 | Shares 272,300
Buy 3 Sep 2024
Value US$7,326.00 | Price 0.17 | Shares 44,400
Buy 29 Aug 2024
Value US$10,101.91 | Price 0.16 | Shares 61,597
Buy 28 Aug 2024
Value US$15,958.19 | Price 0.16 | Shares 97,903
Buy 14 Aug 2024
Value US$16,594.56 | Price 0.14 | Shares 115,240
Buy 21 Jun 2024
Value US$7,980.63 | Price 0.18 | Shares 43,610
Buy 20 Jun 2024
Value US$14,671.02 | Price 0.18 | Shares 80,610
Buy 13 Jun 2023
Value US$649.50 | Price 0.65 | Shares 1,000
Buy 31 Mar 2023
Value US$19,872.00 | Price 1.08 | Shares 18,400
Buy 28 Mar 2023
Value US$8,927.00 | Price 1.13 | Shares 7,900
Buy 24 Mar 2023
Value US$5,390.00 | Price 1.10 | Shares 4,900
Buy 22 Mar 2023
Value US$10,058.00 | Price 1.07 | Shares 9,400
Buy 21 Mar 2023
Value US$59,999.80 | Price 1.19 | Shares 50,420
Buy 21 Mar 2023
Value US$15,000.00 | Price 1.20 | Shares 12,500
Buy 21 Mar 2023
Value US$59,999.80 | Price 1.19 | Shares 50,420
Buy 21 Mar 2023
Value US$15,000.00 | Price 1.20 | Shares 12,500
Buy 21 Mar 2023
Value US$59,999.80 | Price 1.19 | Shares 50,420
Buy 21 Mar 2023
Value US$15,000.00 | Price 1.20 | Shares 12,500
Buy 21 Mar 2023
Value US$59,999.80 | Price 1.19 | Shares 50,420
Buy 21 Mar 2023
Value US$15,000.00 | Price 1.20 | Shares 12,500
Buy 21 Mar 2023
Value US$59,999.80 | Price 1.19 | Shares 50,420
Buy 21 Mar 2023
Value US$15,000.00 | Price 1.20 | Shares 12,500
Buy 17 Mar 2023
Value US$16,640.00 | Price 1.04 | Shares 16,000
Buy 15 Mar 2023
Value US$18,737.25 | Price 1.05 | Shares 17,845
Buy 14 Mar 2023
Value US$3,456.00 | Price 1.08 | Shares 3,200
Buy 10 Mar 2023
Value US$117,055,800.00 | Price 11,043.00 | Shares 10,600
Buy 3 Mar 2023
Value US$902,518,400.00 | Price 29,984.00 | Shares 30,100
Buy 10 Feb 2023
Value US$1,125,000,000.00 | Price 15,000.00 | Shares 75,000
Buy 20 Dec 2022
Value US$29,896,505.00 | Price 5,353.00 | Shares 5,585
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other
Notification date Transaction date B/S Transaction type Insider and/or position Nb. shares
Price
Value
Number of shares Price Value Details
2026-03-27 2026-03-27 B Purchase

Chief Operating Officer

Officer
22,020 -36.1%
471.95
US$4,954,047
22,020 -36.1% 471.95 US$4,954,047
2026-03-27 2026-03-27 B Purchase

President

Officer
5,429 -23.6%
463.99
US$3,476,353
5,429 -23.6% 463.99 US$3,476,353
2026-03-26 2026-03-26 B Purchase

President

Officer
48,924 +47.6%
125.29
US$4,714,612
48,924 +47.6% 125.29 US$4,714,612
2026-03-27 2026-03-25 S Sale Non-Executive Director
30,000 -11.5%
0.70
US$21,129
30,000 -11.5% 0.70 US$21,129
2026-03-20 2026-03-18 S Sale Non-Executive Director
55,000 -17.4%
0.80
US$44,099
55,000 -17.4% 0.80 US$44,099
2026-03-18 2026-03-18 B Purchase

Chief Operating Officer

Officer
3,000 +0.6%
0.80
US$2,395
3,000 +0.6% 0.80 US$2,395
2026-03-17 2026-03-17 PrS Proposed sale

Director

Non-Executive Director
110,028
0.00
US$83
110,028 0.00 US$83
2025-12-22 2025-12-19 S Sale

General Counsel, Secretary

Executive Director
30,000 -0.4%
1.05
US$31,500
30,000 -0.4% 1.05 US$31,500
2025-12-17 2025-12-16 S Sale

General Counsel, Secretary

Executive Director
12,000 -0.2%
1.07
US$12,876
12,000 -0.2% 1.07 US$12,876
2025-12-17 2025-12-15 S Sale

General Counsel, Secretary

Executive Director
6,000 -0.1%
1.10
US$6,618
6,000 -0.1% 1.10 US$6,618
2025-12-12 2025-12-12 S Sale

General Counsel, Secretary

Executive Director
11,000 -0.2%
1.16
US$12,749
11,000 -0.2% 1.16 US$12,749
2025-12-12 2025-12-11 S Sale

General Counsel, Secretary

Executive Director
50,000 -0.7%
1.16
US$58,050
50,000 -0.7% 1.16 US$58,050
2025-12-12 2025-12-10 S Sale

General Counsel, Secretary

Executive Director
127,000 -1.7%
1.21
US$153,289
127,000 -1.7% 1.21 US$153,289
2025-12-02 2025-12-01 S Sale

General Counsel, Secretary

Executive Director
35,000 -0.5%
1.05
US$36,750
35,000 -0.5% 1.05 US$36,750
2025-12-02 2025-11-28 S Sale

General Counsel, Secretary

Executive Director
18,000 -0.2%
1.06
US$18,990
18,000 -0.2% 1.06 US$18,990
2025-11-18 2025-11-17 S Sale

General Counsel, Secretary

Executive Director
10,000 -0.1%
1.16
US$11,560
10,000 -0.1% 1.16 US$11,560
2025-11-18 2025-11-14 S Sale

General Counsel, Secretary

Executive Director
90,000 -1.2%
1.15
US$103,500
90,000 -1.2% 1.15 US$103,500
2025-11-13 2025-11-13 S Sale

General Counsel, Secretary

Executive Director Large shareholder
160,000 -2.1%
1.17
US$186,400
160,000 -2.1% 1.17 US$186,400
2025-11-13 2025-11-11 S Sale

General Counsel, Secretary

Executive Director Large shareholder
60,000 -0.8%
1.18
US$70,800
60,000 -0.8% 1.18 US$70,800
2025-11-10 2025-11-11 PrS Proposed sale

Director; 10% Stockholder

Non-Executive Director Large shareholder
800,000
1.27
US$1,016,000
800,000 1.27 US$1,016,000
2025-09-17 2025-09-16 S Sale

General Counsel, Secretary

Executive Director Large shareholder
50,000 -0.6%
1.11
US$55,500
50,000 -0.6% 1.11 US$55,500
2025-09-17 2025-09-15 S Sale

General Counsel, Secretary

Executive Director Large shareholder
50,000 -0.6%
1.10
US$55,000
50,000 -0.6% 1.10 US$55,000
2025-09-12 2025-09-12 S Sale

General Counsel, Secretary

Executive Director Large shareholder
73,000 -0.9%
1.12
US$81,760
73,000 -0.9% 1.12 US$81,760
2025-09-12 2025-09-11 S Sale

General Counsel, Secretary

Executive Director Large shareholder
90,000 -1.1%
1.12
US$100,800
90,000 -1.1% 1.12 US$100,800
2025-09-12 2025-09-10 S Sale

General Counsel, Secretary

Executive Director Large shareholder
70,000 -0.9%
1.12
US$78,400
70,000 -0.9% 1.12 US$78,400
2025-09-09 2025-09-09 S Sale

General Counsel, Secretary

Executive Director Large shareholder
150,000 -1.8%
1.12
US$168,000
150,000 -1.8% 1.12 US$168,000
2025-09-09 2025-09-08 S Sale

General Counsel, Secretary

Executive Director Large shareholder
250,227 -3.0%
1.12
US$280,254
250,227 -3.0% 1.12 US$280,254
2025-09-09 2025-09-05 S Sale

General Counsel, Secretary

Executive Director Large shareholder
46,473 -0.5%
1.08
US$50,191
46,473 -0.5% 1.08 US$50,191
2025-09-03 2025-09-03 S Sale

Former Officer and Affiliate

500,000 -7.6%
1.12
US$560,000
500,000 -7.6% 1.12 US$560,000
2025-08-28 2025-08-28 S Sale

General Counsel, Secretary

Executive Director Large shareholder
24,000 -0.3%
1.05
US$25,104
24,000 -0.3% 1.05 US$25,104
2025-08-28 2025-08-27 S Sale

General Counsel, Secretary

Executive Director Large shareholder
40,000 -0.5%
1.04
US$41,600
40,000 -0.5% 1.04 US$41,600
2025-08-26 2025-08-26 S Sale

General Counsel, Secretary

Executive Director Large shareholder
40,000 -0.5%
1.04
US$41,600
40,000 -0.5% 1.04 US$41,600
2025-08-26 2025-08-22 S Sale

General Counsel, Secretary

Executive Director Large shareholder
45,000 -0.5%
1.04
US$46,800
45,000 -0.5% 1.04 US$46,800
2025-08-20 2025-08-19 S Sale

General Counsel, Secretary

Executive Director Large shareholder
126,000 -1.4%
1.05
US$132,300
126,000 -1.4% 1.05 US$132,300
2025-08-20 2025-08-18 S Sale

General Counsel, Secretary

Executive Director Large shareholder
225,000 -2.5%
1.08
US$243,000
225,000 -2.5% 1.08 US$243,000
2025-08-18 2025-08-18 PrS Proposed sale

Officer; Director; 10% Stockholder

Executive Director Large shareholder
500,000
1.28
US$640,000
500,000 1.28 US$640,000
2025-08-18 2025-08-18 PrS Proposed sale

10% Stockholder

Large shareholder
500,000
1.28
US$640,000
500,000 1.28 US$640,000
2025-05-20 2025-05-19 S Sale Non-Executive Director Large shareholder
500,000 -7.0%
1.05
US$524,000
500,000 -7.0% 1.05 US$524,000
2025-05-20 2025-05-19 S Sale

General Counsel, Secretary

Executive Director Large shareholder
259,400 -2.8%
1.07
US$277,558
259,400 -2.8% 1.07 US$277,558
2025-05-19 2025-05-19 PrS Proposed sale

Officer

Officer
500,000
1.12
US$560,000
500,000 1.12 US$560,000
2025-03-07 2025-03-06 S Sale

General Counsel, Secretary

Executive Director Large shareholder
135,000 -1.4%
1.34
US$180,900
135,000 -1.4% 1.34 US$180,900
2025-03-06 2025-03-06 S Sale Non-Executive Director Large shareholder
225,000 -3.1%
1.33
US$299,700
225,000 -3.1% 1.33 US$299,700
2025-03-07 2025-03-05 S Sale

General Counsel, Secretary

Executive Director Large shareholder
365,000 -3.6%
1.47
US$536,550
365,000 -3.6% 1.47 US$536,550
2025-03-06 2025-03-05 S Sale Non-Executive Director Large shareholder
275,000 -3.6%
1.49
US$410,575
275,000 -3.6% 1.49 US$410,575
2025-03-04 2025-03-05 PrS Proposed sale

Officer; Director; 10% Stockholder

Executive Director Large shareholder
500,000
0.98
US$490,500
500,000 0.98 US$490,500
2025-03-04 2025-03-05 PrS Proposed sale

Director; 10% Stockholder

Non-Executive Director Large shareholder
500,000
0.98
US$490,500
500,000 0.98 US$490,500
2024-09-05 2024-09-04 B Purchase

General Counsel, Secretary

Executive Director Large shareholder
272,300 +2.8%
0.16
US$44,657
272,300 +2.8% 0.16 US$44,657
2024-09-04 2024-09-03 B Purchase

General Counsel, Secretary

Executive Director Large shareholder
44,400 +0.5%
0.17
US$7,326
44,400 +0.5% 0.17 US$7,326
2024-08-30 2024-08-29 B Purchase

General Counsel, Secretary

Executive Director Large shareholder
61,597 +0.6%
0.16
US$10,102
61,597 +0.6% 0.16 US$10,102
2024-08-29 2024-08-28 B Purchase

General Counsel, Secretary

Executive Director Large shareholder
97,903 +1.0%
0.16
US$15,958
97,903 +1.0% 0.16 US$15,958
2024-08-14 2024-08-14 B Purchase

General Counsel, Secretary

Executive Director Large shareholder
115,240 +1.2%
0.14
US$16,595
115,240 +1.2% 0.14 US$16,595
2024-06-24 2024-06-21 B Purchase

General Counsel, Secretary

Executive Director Large shareholder
43,610 +0.5%
0.18
US$7,981
43,610 +0.5% 0.18 US$7,981
2024-06-24 2024-06-20 B Purchase

General Counsel, Secretary

Executive Director Large shareholder
80,610 +0.9%
0.18
US$14,671
80,610 +0.9% 0.18 US$14,671
2023-06-14 2023-06-13 B Purchase

CEO, President

Executive Director Large shareholder
1,000 +0.0%
0.65
US$650
1,000 +0.0% 0.65 US$650
2023-04-03 2023-03-31 B Purchase

See Remarks

Executive Director Large shareholder
18,400 +0.2%
1.08
US$19,872
18,400 +0.2% 1.08 US$19,872
2023-03-30 2023-03-28 B Purchase

See Remarks

Executive Director Large shareholder
7,900 +0.1%
1.13
US$8,927
7,900 +0.1% 1.13 US$8,927
2023-03-27 2023-03-24 B Purchase

See Remarks

Executive Director Large shareholder
4,900 +0.1%
1.10
US$5,390
4,900 +0.1% 1.10 US$5,390
2023-03-23 2023-03-22 B Purchase

See Remarks

Executive Director Large shareholder
9,400 +0.1%
1.07
US$10,058
9,400 +0.1% 1.07 US$10,058
2023-03-23 2023-03-21 B Purchase Non-Executive Director
50,420 +80.7%
1.19
US$60,000
50,420 +80.7% 1.19 US$60,000
2023-03-23 2023-03-21 B Purchase Non-Executive Director
12,500 +25.0%
1.20
US$15,000
12,500 +25.0% 1.20 US$15,000
2023-03-23 2023-03-21 B Purchase Non-Executive Director
50,420 +164.9%
1.19
US$60,000
50,420 +164.9% 1.19 US$60,000
2023-03-23 2023-03-21 B Purchase Non-Executive Director
12,500 +69.2%
1.20
US$15,000
12,500 +69.2% 1.20 US$15,000
2023-03-23 2023-03-21 B Purchase Non-Executive Director
50,420 +403.4%
1.19
US$60,000
50,420 +403.4% 1.19 US$60,000
2023-03-23 2023-03-21 B Purchase Non-Executive Director
12,500 +inf%
1.20
US$15,000
12,500 +inf% 1.20 US$15,000
2023-03-23 2023-03-21 B Purchase Non-Executive Director
50,420 +66.2%
1.19
US$60,000
50,420 +66.2% 1.19 US$60,000
2023-03-23 2023-03-21 B Purchase Non-Executive Director
12,500 +19.6%
1.20
US$15,000
12,500 +19.6% 1.20 US$15,000
2023-03-23 2023-03-21 B Purchase Non-Executive Director
50,420 +93.2%
1.19
US$60,000
50,420 +93.2% 1.19 US$60,000
2023-03-23 2023-03-21 B Purchase Non-Executive Director
12,500 +30.0%
1.20
US$15,000
12,500 +30.0% 1.20 US$15,000
2023-03-20 2023-03-17 B Purchase

See remarks

Executive Director Large shareholder
16,000 +0.2%
1.04
US$16,640
16,000 +0.2% 1.04 US$16,640
2023-03-16 2023-03-15 B Purchase

See Remarks

Executive Director Large shareholder
17,845 +0.2%
1.05
US$18,737
17,845 +0.2% 1.05 US$18,737
2023-03-15 2023-03-14 B Purchase

See Remarks

Executive Director Large shareholder
3,200 +0.0%
1.08
US$3,456
3,200 +0.0% 1.08 US$3,456
2023-03-13 2023-03-10 B Purchase

See Remarks

Executive Director Large shareholder
10,600 +0.1%
11,043.00
US$117,055,800
10,600 +0.1% 11,043.00 US$117,055,800
2023-03-06 2023-03-03 B Purchase

See Remarks

Executive Director Large shareholder
30,100 +0.3%
29,984.00
US$902,518,400
30,100 +0.3% 29,984.00 US$902,518,400
2023-02-10 2023-02-10 B Purchase

See Remarks

Executive Director Large shareholder
75,000 +0.8%
15,000.00
US$1,125,000,000
75,000 +0.8% 15,000.00 US$1,125,000,000
2022-12-21 2022-12-20 B Purchase Non-Executive Director
5,585 +0.3%
5,353.00
US$29,896,505
5,585 +0.3% 5,353.00 US$29,896,505