CTM

Castellum, Inc.Cluster buy · 4 insiders

Insider trading activity for Castellum, Inc., straight from SEC Form 4 filings. Net figures below count open-market buys and sales only — grants, option exercises and tax withholding are excluded because they are compensation, not decisions to trade.

Past 3 months

+$34K

net buying

Bought(6 · 4 insiders): $34K
Sold(0 · 0 insiders): $0

Past 6 months

+$34K

net buying

Bought(6 · 4 insiders): $34K
Sold(0 · 0 insiders): $0

Past 12 months

-$722.8K

net selling

Bought(10 · 4 insiders): $45.5K
Sold(14 · 2 insiders): $768.3K

Active cluster buy

4 insiders bought on the open market within 30 days.

All clusters →

CTM

Castellum, Inc.

$3K

total bought

4 insiders4 buys4,868 shares

All 4 insiders bought on Jul 1 — a single shared event.

Ives Glen RPresident$772
Martin Tammy LGeneral Counsel and…$736
Bell David TChief Financial…$736
Merriman AndrewChief Operating…$736

Transaction history

The 55 most recent Form 4 transactions.

Open in screener →

Insider transactions, newest first: date, security, transaction type, size and a link to the filing each row came from.
Date	Insider	Role	Type	Shares	Price	Value	Δ Own	Filing
Sep 9	Merriman Andrew	Chief Operating Officer	PBUY	10,000	$0.62	$6.2K	+1.7%	Open the original filing on SEC.gov
Sep 9	Merriman Andrew	Chief Operating Officer	PBUY▲	40,000	$0.6193	$24.8K	+7.4%	Open the original filing on SEC.gov
Jul 1	Merriman Andrew	Chief Operating Officer	PBUY	1,202	$0.612	$736	+0.2%	Open the original filing on SEC.gov
Jul 1	Martin Tammy L	General Counsel and…	PBUY★	1,202	$0.612	$736	+8.7%	Open the original filing on SEC.gov
Jul 1	Ives Glen R	President	AGRANT◆	773,630	—	—	—	Open the original filing on SEC.gov
Jul 1	Ives Glen R	President	PBUY	1,262	$0.612	$772	+0.6%	Open the original filing on SEC.gov
Jul 1	Bell David T	Chief Financial Officer	PBUY★	1,202	$0.612	$736	+7.5%	Open the original filing on SEC.gov
Mar 31	Merriman Andrew	Chief Operating Officer	AGRANT	1,329	$0.4544	$604	+0.3%	Open the original filing on SEC.gov
Mar 31	Martin Tammy L	General Counsel and…	AGRANT	1,329	$0.4544	$604	+10.6%	Open the original filing on SEC.gov
Mar 31	Bell David T	Chief Financial Officer	AGRANT	1,329	$0.4544	$604	+9.0%	Open the original filing on SEC.gov
Mar 27	Merriman Andrew	Chief Operating Officer	PBUY↓	2,000	$0.6426	$1.3K	+0.4%	Open the original filing on SEC.gov
Mar 27	Ives Glen R	President	PBUY	2,000	$0.6157	$1.2K	+1.0%	Open the original filing on SEC.gov
Mar 26	Ives Glen R	President	PBUY★	10,000	$0.6649	$6.6K	+5.3%	Open the original filing on SEC.gov
Mar 25	McMillen Charles Thomas	Director	SSELL	30,000	$0.7043	$21.1K	-11.5%	Open the original filing on SEC.gov
Mar 18	Merriman Andrew	Chief Operating Officer	PBUY★	3,000	$0.7983	$2.4K	+0.6%	Open the original filing on SEC.gov
Mar 18	McMillen Charles Thomas	Director	SSELL	55,000	$0.8018	$44.1K	-17.4%	Open the original filing on SEC.gov
Dec 19, 2025	Wright Jay O	General Counsel,…	SSELL	30,000	$1.05	$31.5K	-0.4%	Open the original filing on SEC.gov
Dec 16, 2025	Wright Jay O	General Counsel,…	SSELL	12,000	$1.07	$12.9K	-0.2%	Open the original filing on SEC.gov
Dec 15, 2025	Wright Jay O	General Counsel,…	SSELL	6,000	$1.10	$6.6K	<0.1%	Open the original filing on SEC.gov
Dec 12, 2025	Wright Jay O	General Counsel,…	SSELL	11,000	$1.16	$12.7K	-0.1%	Open the original filing on SEC.gov
Dec 11, 2025	Wright Jay O	General Counsel,…	SSELL	50,000	$1.16	$58.1K	-0.7%	Open the original filing on SEC.gov
Dec 10, 2025	Wright Jay O	General Counsel,…	SSELL	127,000	$1.21	$153.3K	-1.7%	Open the original filing on SEC.gov
Dec 1, 2025	Wright Jay O	General Counsel,…	SSELL	35,000	$1.05	$36.8K	-0.5%	Open the original filing on SEC.gov
Nov 28, 2025	Wright Jay O	General Counsel,…	SSELL	18,000	$1.06	$19K	-0.2%	Open the original filing on SEC.gov
Nov 17, 2025	Wright Jay O	General Counsel,…	SSELL	10,000	$1.16	$11.6K	-0.1%	Open the original filing on SEC.gov
Nov 14, 2025	Wright Jay O	General Counsel,…	SSELL	90,000	$1.15	$103.5K	-1.2%	Open the original filing on SEC.gov
Nov 13, 2025	Wright Jay O	General Counsel,…	SSELL	160,000	$1.17	$186.4K	-2.1%	Open the original filing on SEC.gov
Nov 11, 2025	Ives Glen R	President	AGRANT◆	500,000	—	—	—	Open the original filing on SEC.gov
Nov 11, 2025	Merriman Andrew	Chief Operating Officer	AGRANT◆	275,000	—	—	—	Open the original filing on SEC.gov
Nov 11, 2025	McMillen Charles Thomas	Director	AGRANT◆	100,000	—	—	—	Open the original filing on SEC.gov
Nov 11, 2025	Champoux Bernard S	Director	AGRANT◆	100,000	—	—	—	Open the original filing on SEC.gov
Nov 11, 2025	Wright Jay O	General Counsel,…	SSELL	60,000	$1.18	$70.8K	-0.8%	Open the original filing on SEC.gov
Nov 11, 2025	Campbell John Francis	Director	AGRANT◆	100,000	—	—	—	Open the original filing on SEC.gov
Nov 11, 2025	Bell David T	Chief Financial Officer	AGRANT◆	225,000	—	—	—	Open the original filing on SEC.gov
Nov 11, 2025	Alarie Mark S	Director	AGRANT◆	100,000	—	—	—	Open the original filing on SEC.gov
Sep 16, 2025	Wright Jay O	General Counsel,…	SSELL	50,000	$1.11	$55.5K	-0.6%	Open the original filing on SEC.gov
Sep 15, 2025	Wright Jay O	General Counsel,…	SSELL	50,000	$1.10	$55K	-0.6%	Open the original filing on SEC.gov
Sep 12, 2025	Wright Jay O	General Counsel,…	SSELL	73,000	$1.12	$81.8K	-0.9%	Open the original filing on SEC.gov
Sep 11, 2025	Wright Jay O	General Counsel,…	SSELL	90,000	$1.12	$100.8K	-1.1%	Open the original filing on SEC.gov
Sep 10, 2025	Wright Jay O	General Counsel,…	SSELL	70,000	$1.12	$78.4K	-0.9%	Open the original filing on SEC.gov
Sep 9, 2025	Wright Jay O	General Counsel,…	SSELL	150,000	$1.12	$168K	-1.8%	Open the original filing on SEC.gov
Sep 8, 2025	Wright Jay O	General Counsel,…	SSELL	250,227	$1.12	$280.3K	-2.9%	Open the original filing on SEC.gov
Sep 5, 2025	Wright Jay O	General Counsel,…	SSELL	46,473	$1.08	$50.2K	-0.5%	Open the original filing on SEC.gov
Sep 3, 2025	Fuller Mark C	Former Officer and…	SSELL	500,000	$1.12	$560K	-7.6%	Open the original filing on SEC.gov
Aug 28, 2025	Wright Jay O	General Counsel,…	SSELL	24,000	$1.05	$25.1K	-0.3%	Open the original filing on SEC.gov
Aug 27, 2025	Wright Jay O	General Counsel,…	SSELL	40,000	$1.04	$41.6K	-0.5%	Open the original filing on SEC.gov
Aug 26, 2025	Wright Jay O	General Counsel,…	SSELL	40,000	$1.04	$41.6K	-0.5%	Open the original filing on SEC.gov
Aug 22, 2025	Wright Jay O	General Counsel,…	SSELL	45,000	$1.04	$46.8K	-0.5%	Open the original filing on SEC.gov
Aug 21, 2025	McMillen Charles Thomas	Director	MEXER	125,000	$0.212	$26.5K	+65.4%	Open the original filing on SEC.gov
Aug 20, 2025	McMillen Charles Thomas	Director	MEXER◆	125,000	$0.212	$26.5K	—	Open the original filing on SEC.gov
Aug 19, 2025	Wright Jay O	General Counsel,…	SSELL	126,000	$1.05	$132.3K	-1.4%	Open the original filing on SEC.gov
Aug 18, 2025	Wright Jay O	General Counsel,…	SSELL	225,000	$1.08	$243K	-2.5%	Open the original filing on SEC.gov
May 19, 2025	Fuller Mark C	Director, 10% Owner	SSELL	500,000	$1.05	$524K	-7.0%	Open the original filing on SEC.gov
May 19, 2025	Wright Jay O	General Counsel,…	SSELL	259,400	$1.07	$277.6K	-2.8%	Open the original filing on SEC.gov
May 19, 2025	Wright Jay O	General Counsel,…	JOTHER	240,600	$1.04	$250.2K	-2.5%	Open the original filing on SEC.gov

PBUY$6.2K

Merriman Andrew · Chief Operating…Sep 9

10,000 sh @ $0.62 · +1.7% own

PBUY▲$24.8K

Merriman Andrew · Chief Operating…Sep 9

40,000 sh @ $0.6193 · +7.4% own

PBUY$736

Merriman Andrew · Chief Operating…Jul 1

1,202 sh @ $0.612 · +0.2% own

PBUY★$736

Martin Tammy L · General Counsel…Jul 1

1,202 sh @ $0.612 · +8.7% own

AGRANT◆—

Ives Glen R · PresidentJul 1

773,630 sh

PBUY$772

Ives Glen R · PresidentJul 1

1,262 sh @ $0.612 · +0.6% own

PBUY★$736

Bell David T · Chief Financial…Jul 1

1,202 sh @ $0.612 · +7.5% own

AGRANT$604

Merriman Andrew · Chief Operating…Mar 31

1,329 sh @ $0.4544 · +0.3% own

AGRANT$604

Martin Tammy L · General Counsel…Mar 31

1,329 sh @ $0.4544 · +10.6% own

AGRANT$604

Bell David T · Chief Financial…Mar 31

1,329 sh @ $0.4544 · +9.0% own

PBUY↓$1.3K

Merriman Andrew · Chief Operating…Mar 27

2,000 sh @ $0.6426 · +0.4% own

PBUY$1.2K

Ives Glen R · PresidentMar 27

2,000 sh @ $0.6157 · +1.0% own

PBUY★$6.6K

Ives Glen R · PresidentMar 26

10,000 sh @ $0.6649 · +5.3% own

SSELL$21.1K

McMillen Charles Thomas · DirectorMar 25

30,000 sh @ $0.7043 · -11.5% own

PBUY★$2.4K

Merriman Andrew · Chief Operating…Mar 18

3,000 sh @ $0.7983 · +0.6% own

SSELL$44.1K

McMillen Charles Thomas · DirectorMar 18

55,000 sh @ $0.8018 · -17.4% own

SSELL$31.5K

Wright Jay O · General Counsel,…Dec 19, 2025

30,000 sh @ $1.05 · -0.4% own

SSELL$12.9K

Wright Jay O · General Counsel,…Dec 16, 2025

12,000 sh @ $1.07 · -0.2% own

SSELL$6.6K

Wright Jay O · General Counsel,…Dec 15, 2025

6,000 sh @ $1.10 · <0.1% own

SSELL$12.7K

Wright Jay O · General Counsel,…Dec 12, 2025

11,000 sh @ $1.16 · -0.1% own

SSELL$58.1K

Wright Jay O · General Counsel,…Dec 11, 2025

50,000 sh @ $1.16 · -0.7% own

SSELL$153.3K

Wright Jay O · General Counsel,…Dec 10, 2025

127,000 sh @ $1.21 · -1.7% own

SSELL$36.8K

Wright Jay O · General Counsel,…Dec 1, 2025

35,000 sh @ $1.05 · -0.5% own

SSELL$19K

Wright Jay O · General Counsel,…Nov 28, 2025

18,000 sh @ $1.06 · -0.2% own

SSELL$11.6K

Wright Jay O · General Counsel,…Nov 17, 2025

10,000 sh @ $1.16 · -0.1% own

SSELL$103.5K

Wright Jay O · General Counsel,…Nov 14, 2025

90,000 sh @ $1.15 · -1.2% own

SSELL$186.4K

Wright Jay O · General Counsel,…Nov 13, 2025

160,000 sh @ $1.17 · -2.1% own

AGRANT◆—

Ives Glen R · PresidentNov 11, 2025

500,000 sh

AGRANT◆—

Merriman Andrew · Chief Operating…Nov 11, 2025

275,000 sh

AGRANT◆—

McMillen Charles Thomas · DirectorNov 11, 2025

100,000 sh

AGRANT◆—

Champoux Bernard S · DirectorNov 11, 2025

100,000 sh

SSELL$70.8K

Wright Jay O · General Counsel,…Nov 11, 2025

60,000 sh @ $1.18 · -0.8% own

AGRANT◆—

Campbell John Francis · DirectorNov 11, 2025

100,000 sh

AGRANT◆—

Bell David T · Chief Financial…Nov 11, 2025

225,000 sh

AGRANT◆—

Alarie Mark S · DirectorNov 11, 2025

100,000 sh

SSELL$55.5K

Wright Jay O · General Counsel,…Sep 16, 2025

50,000 sh @ $1.11 · -0.6% own

SSELL$55K

Wright Jay O · General Counsel,…Sep 15, 2025

50,000 sh @ $1.10 · -0.6% own

SSELL$81.8K

Wright Jay O · General Counsel,…Sep 12, 2025

73,000 sh @ $1.12 · -0.9% own

SSELL$100.8K

Wright Jay O · General Counsel,…Sep 11, 2025

90,000 sh @ $1.12 · -1.1% own

SSELL$78.4K

Wright Jay O · General Counsel,…Sep 10, 2025

70,000 sh @ $1.12 · -0.9% own

SSELL$168K

Wright Jay O · General Counsel,…Sep 9, 2025

150,000 sh @ $1.12 · -1.8% own

SSELL$280.3K

Wright Jay O · General Counsel,…Sep 8, 2025

250,227 sh @ $1.12 · -2.9% own

SSELL$50.2K

Wright Jay O · General Counsel,…Sep 5, 2025

46,473 sh @ $1.08 · -0.5% own

SSELL$560K

Fuller Mark C · Former Officer…Sep 3, 2025

500,000 sh @ $1.12 · -7.6% own

SSELL$25.1K

Wright Jay O · General Counsel,…Aug 28, 2025

24,000 sh @ $1.05 · -0.3% own

SSELL$41.6K

Wright Jay O · General Counsel,…Aug 27, 2025

40,000 sh @ $1.04 · -0.5% own

SSELL$41.6K

Wright Jay O · General Counsel,…Aug 26, 2025

40,000 sh @ $1.04 · -0.5% own

SSELL$46.8K

Wright Jay O · General Counsel,…Aug 22, 2025

45,000 sh @ $1.04 · -0.5% own

MEXER$26.5K

McMillen Charles Thomas · DirectorAug 21, 2025

125,000 sh @ $0.212 · +65.4% own

MEXER◆$26.5K

McMillen Charles Thomas · DirectorAug 20, 2025

125,000 sh @ $0.212

SSELL$132.3K

Wright Jay O · General Counsel,…Aug 19, 2025

126,000 sh @ $1.05 · -1.4% own

SSELL$243K

Wright Jay O · General Counsel,…Aug 18, 2025

225,000 sh @ $1.08 · -2.5% own

SSELL$524K

Fuller Mark C · Director, 10%…May 19, 2025

500,000 sh @ $1.05 · -7.0% own

SSELL$277.6K

Wright Jay O · General Counsel,…May 19, 2025

259,400 sh @ $1.07 · -2.8% own

JOTHER$250.2K

Wright Jay O · General Counsel,…May 19, 2025

240,600 sh @ $1.04 · -2.5% own

Filing record

How quickly insiders here report their trades. Section 16 allows two business days from the transaction.

All 29 filings we hold were filed within the two-business-day deadline.

Counted in business days from the transaction date, or the deemed execution date where the filing reports one, excluding weekends and federal holidays. How this is measured · All late filings

Insiders at this company

Everyone who has filed a Form 4 for this issuer.

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