NYSE · CTM

Castellum, Inc.

Closing price · Nov 13, 2026 $0.439
Last insider buy price $0.44 Paid by COO Andrew Merriman on Nov 10, 2026 (Form 4). Not today's price.

Latest quarter · ended Sep 30, 2026

Cash got weaker, but sales grew

descriptionFiled Nov 5, 2026
Revenue growthFaster
+0.6%
Quarter ended Dec 31, 2024: −7.1% sales vs. a year beforeQuarter ended Mar 31, 2025: +2.9% sales vs. a year beforeQuarter ended Jun 30, 2025: +21.7% sales vs. a year beforeQuarter ended Sep 30, 2025: +25.9% sales vs. a year beforeQuarter ended Dec 31, 2025: +21.9% sales vs. a year beforeQuarter ended Mar 31, 2026: +22.5% sales vs. a year beforeQuarter ended Jun 30, 2026: −1.1% sales vs. a year beforeQuarter ended Sep 30, 2026: +0.6% sales vs. a year before
Dec '24Sep '26
$14.7M vs. $14.6M a year ago
Gross marginWorse
36.1%
Quarter ended Dec 31, 2024: 40.0% gross marginQuarter ended Mar 31, 2025: 39.0% gross marginQuarter ended Jun 30, 2025: 36.1% gross marginQuarter ended Sep 30, 2025: 37.6% gross marginQuarter ended Dec 31, 2025: 33.9% gross marginQuarter ended Mar 31, 2026: 35.4% gross marginQuarter ended Jun 30, 2026: 34.0% gross marginQuarter ended Sep 30, 2026: 36.1% gross margin
Dec '24Sep '26
vs. 37.6% a year ago
Cash from operationsWorse
−$1.29M
Quarter ended Dec 31, 2024: −$394K cash from operationsQuarter ended Mar 31, 2025: −$2.5M cash from operationsQuarter ended Jun 30, 2025: $214K cash from operationsQuarter ended Sep 30, 2025: $1M cash from operationsQuarter ended Dec 31, 2025: −$662K cash from operationsQuarter ended Mar 31, 2026: $1.29M cash from operationsQuarter ended Jun 30, 2026: $1.06M cash from operationsQuarter ended Sep 30, 2026: −$1.29M cash from operations
Dec '24Sep '26
−228% from $1M a year ago
Share countSteady
+0.4%
Quarter ended Dec 31, 2024: 80.39M sharesQuarter ended Mar 31, 2025: 86.04M sharesQuarter ended Jun 30, 2025: 93M sharesQuarter ended Sep 30, 2025: 94.61M sharesQuarter ended Dec 31, 2025: 94.61M sharesQuarter ended Mar 31, 2026: 94.7M sharesQuarter ended Jun 30, 2026: 94.78M sharesQuarter ended Sep 30, 2026: 95.02M shares
Dec '24Sep '26
95.02M shares vs. 94.61M a year ago

Numbers come from the company's own 10-Q and 10-K reports filed with the SEC. Each bar is one quarter, oldest on the left. The colored bar is the latest. Hover over or tap a bar to see its number.

Smart money pulse

What insiders and funds are doing

Buying Insiders: as of Nov 13 Funds: as of Jun 30, 2026
−1000+100 +100
  • group
    1 insider bought in the last 30 days. $21.9K in open-market buys, Nov 10.
  • info
    9 real insider sales in 12 months. $377K in total, not counting planned sales.

−100 means everyone selling, +100 everyone buying. This is data, not advice.

How the Pulse works

Pulse runs from −100 (everyone selling) to +100 (everyone buying). Half comes from insiders: real buyers vs. real sellers in the last 90 days (Form 4). Half comes from funds: funds that bought vs. funds that sold last quarter (13F). 13F is a snapshot of long positions on the last day of the quarter, filed up to 45 days later. It does not show short positions or trades since then.

Who owns it

35 funds report owning CTM, up from 27

Holdings as of Jun 30, 2026
New12
Added5
Held15
Trimmed3
Sold out4

Insider trades · last 12 months

Real buys and sales

● Open-market buy● Open-market sale
CEOCFOOther officersDirectorsDecJanFebMarAprMayJunJulAugSepOctNovStock grant · Mar 31 · $598Stock grant · Mar 31 · $1.2K · 2 peopleOpen-market sale · Dec 1 · $36.8KOpen-market sale · Dec 10 · $154KOpen-market sale · Dec 11 · $58KOpen-market sale · Dec 12 · $12.8KOpen-market sale · Dec 15 · $6.6KOpen-market sale · Dec 16 · $12.8KOpen-market sale · Dec 19 · $31.5KOpen-market sale · Mar 18 · $44KOpen-market buy · Mar 18 · $2.4KOpen-market sale · Mar 25 · $21KOpen-market buy · Mar 26 · $6.6KOpen-market buy · Mar 27 · $2.52K · 2 peopleOpen-market buy · Jul 1 · $733Open-market buy · Jul 1 · $2.24K · 3 peopleOpen-market buy · Sep 9 · $31KOpen-market buy · Oct 1 · $747Open-market buy · Oct 1 · $2.4K · 3 peopleOpen-market buy · Nov 10 · $21.9K
CEOCFOOther officersDirectorsJunJulAugSepOctNovOpen-market buy · Jul 1 · $733Open-market buy · Jul 1 · $2.24K · 3 peopleOpen-market buy · Sep 9 · $31KOpen-market buy · Oct 1 · $747Open-market buy · Oct 1 · $2.4K · 3 peopleOpen-market buy · Nov 10 · $21.9K

Last 6 months. A wider screen shows 12.

Showing 23 real trades. Hidden: 3 stock grants. Those happen on a schedule and say little about what an insider thinks. Bigger dot means a bigger trade.

Real trades, newest first

Nov 10 Andrew Merriman COO Open-market buy $21.9K 50,000 sh at $0.44
Oct 1 Glen Ives President, Director Open-market buy $910 1,700 sh at $0.54
Oct 1 David Bell CFO Open-market buy $747 1,396 sh at $0.54
Oct 1 Tammy Martin General Counsel and Secretary Open-market buy $747 1,396 sh at $0.54
Oct 1 Andrew Merriman COO Open-market buy $747 1,396 sh at $0.54
Sep 9 Andrew Merriman COO Open-market buy $31K 50,000 sh at $0.62
Jul 1 Glen Ives President Open-market buy $770 1,262 sh at $0.61
Jul 1 David Bell CFO Open-market buy $733 1,202 sh at $0.61
Jul 1 Tammy Martin General Counsel and Secretary Open-market buy $733 1,202 sh at $0.61
Jul 1 Andrew Merriman COO Open-market buy $733 1,202 sh at $0.61
Show 13 older real trades
Mar 27 Andrew Merriman COO Open-market buy $1.28K 2,000 sh at $0.64
Mar 27 Glen Ives President Open-market buy $1.24K 2,000 sh at $0.62
Mar 26 Glen Ives President Open-market buy $6.6K 10,000 sh at $0.66
Mar 25 Charles McMillen Director Open-market sale $21K 30,000 sh at $0.70 Sold 11% of stake
Mar 18 Charles McMillen Director Open-market sale $44K 55,000 sh at $0.80 Sold 17% of stake
Mar 18 Andrew Merriman COO Open-market buy $2.4K 3,000 sh at $0.80
Dec 19 Jay Wright General Counsel, Secretary, Director Open-market sale $31.5K 30,000 sh at $1.05 Sold 1% of stake
Dec 16 Jay Wright General Counsel, Secretary, Director Open-market sale $12.8K 12,000 sh at $1.07 Sold 1% of stake
Dec 15 Jay Wright General Counsel, Secretary, Director Open-market sale $6.6K 6,000 sh at $1.10 Sold 1% of stake
Dec 12 Jay Wright General Counsel, Secretary, Director Open-market sale $12.8K 11,000 sh at $1.16 Sold 1% of stake
Dec 11 Jay Wright General Counsel, Secretary, Director Open-market sale $58K 50,000 sh at $1.16 Sold 1% of stake
Dec 10 Jay Wright General Counsel, Secretary, Director Open-market sale $154K 127,000 sh at $1.21 Sold 2% of stake
Dec 1 Jay Wright General Counsel, Secretary, Director Open-market sale $36.8K 35,000 sh at $1.05 Sold 1% of stake

Showing every filing. Dashed circles are routine: grants, tax withholding, option exercises and planned sales.

Top holders

Biggest funds in CTM

As of Jun 30, 2026
FundOwnsValueChange
Vanguard Capital Management LLC3.3%$2.23MSame
Meridian Wealth Management, LLC0.9%$621K+10%
Geode Capital Management, LLC0.9%$588K−14%
Captrust Financial Advisors0.7%$451KSame
Vanguard Fiduciary Trust Co0.5%$355K+18%

"Owns" is shares reported divided by shares outstanding.

Where this data comes from. Insider trades, fund holdings, activist stakes and company results come from public SEC EDGAR filings (Forms 4, 13F, 13D/13G, 10-Q and 8-K). Congress trades come from the STOCK Act reports members file with the House Clerk and the Senate. Daily closing prices come from post-no-preference/stocks on DoltHub, a community-run database shared under CC BY-SA 4.0; the prices we show stay under that license. They are each day's close, not live or official exchange prices.

This is data, not investment advice. About StockToast