CTM Castellum (CTM) Insider Trading, Ownership & Congress Trades
Services · Services-management consulting services · CIK 0001877939
Cluster · 4 insidersC-suite buying · 4
House members buying, 1 year
0
STOCK Act, US House only, disclosed up to 45 days after the trade
Funds added, last quarter
17
13F, latest reported quarter
What the filings say about CTM
Insiders, 180 days
+$37.1K net bought
4 buyers
Castellum insider trades (Form 4)
Form 4 buys and sells (codes P and S). Grants, option exercises
and conversions excluded.
Over the last 180 days, Castellum, Inc. insiders bought a net $37.1K of stock across 89 Form 4 purchases and sales, with 4 insiders buying. Source: SEC Form 4 filings, as of 2026-10-28.
Insider
Filed
Shares
Value
Since filing
Context
- 3 earlier Form 4 trades (code P or S) here by this insider (3 buys), the last on Jul 1, 2026.
- +15.3% median (+5.7% mean) 90-day return after 3 previous buys.
- The trade is 0.8% of the 202,578 shares held after it.
- 3 other insiders bought within 30 days.
- 17 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: President Ives Glen R bought about $910 of CTM on Oct 1, 2026; 3 other insiders bought within 30 days and 17 funds added in the latest 13F quarter.Context
- 1 earlier Form 4 trade (code P or S) here by this insider (1 buy), the last on Jul 1, 2026.
- The trade is 7.5% of the 18,651 shares held after it.
- 3 other insiders bought within 30 days.
- 17 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: Chief Financial Officer Bell David T bought about $747 of CTM on Oct 1, 2026; 3 other insiders bought within 30 days and 17 funds added in the latest 13F quarter.Context
- 5 earlier Form 4 trades (code P or S) here by this insider (5 buys), the last on Sep 9, 2026.
- -8.0% median (-2.1% mean) 90-day return after 3 previous buys.
- The trade is 0.2% of the 589,927 shares held after it.
- 3 other insiders bought within 30 days.
- 17 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: Chief Operating Officer Merriman Andrew bought about $747 of CTM on Oct 1, 2026; 3 other insiders bought within 30 days and 17 funds added in the latest 13F quarter.Context
- 1 earlier Form 4 trade (code P or S) here by this insider (1 buy), the last on Jul 1, 2026.
- The trade is 8.5% of the 16,427 shares held after it.
- 3 other insiders bought within 30 days.
- 17 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: General Counsel and Secretary MARTIN TAMMY L bought about $747 of CTM on Oct 1, 2026; 3 other insiders bought within 30 days and 17 funds added in the latest 13F quarter.Context
- 3 earlier Form 4 trades (code P or S) here by this insider (3 buys), the last on Jul 1, 2026.
- -8.0% median (-2.1% mean) 90-day return after 3 previous buys.
- The trade is 6.9% of the 578,531 shares held after it.
- 3 other insiders bought within 30 days.
- 17 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: Chief Operating Officer Merriman Andrew bought about $24.8K of CTM on Sep 9, 2026, the largest insider purchase at the company since 2024; 3 other insiders bought within 30 days and 17 funds added in the latest 13F quarter.89 transactions on record
Since filing: total return from the first close after the filing to the latest close, dividend-adjusted. Not a forecast.
Context lines are counts over the filings above and returns from our own price history, never a price level. Not investment advice.
Seven facts, ranked against the sector ·
Rank is not a forecast
Insiders
net +$37.1K over 180 days
+$34.1K over 90 days
more than 73% of Services
Congress
no House purchase disclosed in the last 12 months
Funds
17 funds bought in last quarter
below 69% of Services
Revenue
+18.1% year over year
more than 74% of Services
Margin
-4.5% net margin
below 66% of Services
Buybacks
no share repurchases reported
Short interest
7.2% of the float short (float per yahoo 2026-10-27) · 14.6 days to cover · settled 2026-10-15
more than 75% of Services
The situation: each line is one rule over one dataset
4 insiders independently bought a net $37.1K while the stock fell 28% over six months, with no planned sales queued.
What changed in the last 30 days
Oct 1President Ives Glen R bought $910 (Oct 1)
Oct 1Chief Financial Officer Bell David T bought $747 (Oct 1)
Oct 1General Counsel and Secretary MARTIN TAMMY L bought $747 (Oct 1)
Oct 1Chief Operating Officer Merriman Andrew bought $747 (Oct 1)
Watch CTM
A free account keeps a watchlist and can send one email a day when insiders, funds or Congress file on the names in it. No password and no card.
The year, with the filings on it
Total return over 12 months. Each marker is a filing; hover or tap one for the detail.
-46.6%12M
Insider buyInsider sell
Indexed to 100, dividend-adjusted, not a price chart.
When a name files heavily, the largest trades are drawn first.
Who owns CTM: institutional holders (13F)
13F holdings, latest reported quarter
3,093,768 sh
$2.2M
863,200 sh
$621.4K
816,037 sh
$587.6K
626,100 sh
$450.7K
492,717 sh
$354.8K
Congress trades in CTM
No Congress trades reported
No House member has disclosed a trade in this stock. See what Congress is buying.
Activist and 5% holders (13D/13G)
No 5%+ ownership filings
Nobody has filed for crossing 5%. That is a fact, not missing data.
CTM planned insider sales (Form 144)
No planned-sale notices
No insider has filed to sell. Watch this after a run-up.
CTM mutual fund holders (N-PORT)
Funds ranked by the share of their own portfolio in this stock (N-PORT).
Ultra-Small Company Market Fund
$68.2K position · as of 2026-06-30
0.0%
Fidelity Extended Market Index Fund
$378.8K position · as of 2026-05-31
0.0%
VANGUARD EXTENDED MARKET INDEX FUND
$589.1K position · as of 2026-06-30
0.0%
VANGUARD INSTITUTIONAL TOTAL STOCK MARKET INDEX FUND
$34.9K position · as of 2026-06-30
0.0%
Fidelity Series Total Market Index Fund
$98.3K position · as of 2026-05-31
0.0%
Fidelity Total Market Index Fund
$112.3K position · as of 2026-05-31
0.0%
SEC N-PORT, monthly, about 60 days late · funds ≥ $10M ·
% is the share of the fund's own portfolio
Live price
Daily candles from TradingView, under their licence. No filings marked.
Why this name is on the desk
4 insiders reported buying shares.
The record shows a net $37.1K bought by insiders over 180 days, 17 funds added last quarter. Each figure is a federal filing, dated the day it went public.
CTM financials
Revenue growth
+18.1%
XBRL, annual
Net margin
-4.5%
Ratios from the company's XBRL filings, latest filings
Revenue, TTM
$55.3M
four quarters, 2025-07-01 to 2026-06-30
Revenue, TTM CTM
| FY Dec 2025 | $52.9M |
| FY Dec 2024 | $44.8M |
| FY Dec 2023 | $45.2M |
| FY Dec 2022 | $42.2M |
| FY Dec 2021 | n/a |
| Jun 2026 | $13.9M |
| Mar 2026 | $14.3M |
| Dec 2025 | $12.6M |
| Sep 2025 | $14.6M |
| Jun 2025 | $14.0M |
| Mar 2025 | $11.7M |
| Dec 2024 | $10.3M |
| Sep 2024 | $11.6M |
At each fiscal year end
Single quarter
Net margin, TTM
-4.1%
net income over revenue, 2025-07-01 to 2026-06-30
Net margin, TTM CTM
| FY Dec 2025 | -4.5% |
| FY Dec 2024 | -22.3% |
| FY Dec 2023 | -39.3% |
| FY Dec 2022 | -35.3% |
| FY Dec 2021 | n/a |
| Jun 2026 | -7.4% |
| Mar 2026 | -2.5% |
| Dec 2025 | -10.5% |
| Sep 2025 | +2.8% |
| Jun 2025 | -2.3% |
| Mar 2025 | -10.0% |
| Dec 2024 | -26.6% |
| Sep 2024 | -11.0% |
At each fiscal year end
Single quarter
Free cash flow, TTM
$2.6M
operating cash flow minus capex, 2025-07-01 to 2026-06-30
Free cash flow, TTM CTM
| FY Dec 2025 | -$2.1M |
| FY Dec 2024 | $1.1M |
| FY Dec 2023 | -$2.3M |
| FY Dec 2022 | $900.9K |
| FY Dec 2021 | n/a |
| Jun 2026 | $1.0M |
| Mar 2026 | $1.3M |
| Dec 2025 | -$671.5K |
| Sep 2025 | $957.0K |
| Jun 2025 | $117.0K |
| Mar 2025 | -$2.5M |
| Dec 2024 | -$394.4K |
| Sep 2024 | $738.9K |
At each fiscal year end
Single quarter
Debt to equity
0.57x
long-term 2024-12-31 (18 months older than the period end) plus current 2023-09-30 (33 months older than the period end); equity 2026-06-30
Debt to equity CTM
| FY Dec 2025 | 0.58x |
| FY Dec 2024 | 1.02x |
| FY Dec 2023 | 1.60x |
| FY Dec 2022 | 0.48x |
| FY Dec 2021 | 0.55x |
| Jun 2026 | 0.57x |
| Mar 2026 | 0.57x |
| Dec 2025 | 0.58x |
| Sep 2025 | 0.56x |
| Jun 2025 | 0.65x |
| Mar 2025 | 0.79x |
| Dec 2024 | 1.02x |
| Sep 2024 | 1.74x |
At each fiscal year end
Trailing four quarters at each quarter end
Cash flow to debt
0.13x
TTM operating cash flow over long-term 2024-12-31 (18 months older than the period end) plus current 2023-09-30 (33 months older than the period end)
Cash flow to debt CTM
| FY Dec 2025 | -0.09x |
| FY Dec 2024 | 0.05x |
| FY Dec 2023 | -0.11x |
| FY Dec 2022 | 0.12x |
| FY Dec 2021 | n/a |
| Jun 2026 | 0.13x |
| Mar 2026 | 0.09x |
| Dec 2025 | -0.09x |
| Sep 2025 | -0.08x |
| Jun 2025 | -0.09x |
| Mar 2025 | -0.07x |
| Dec 2024 | 0.05x |
| Sep 2024 | 0.11x |
At each fiscal year end
Trailing four quarters at each quarter end
Return on equity
-6.8%
TTM net income over average of 2025-06-30 and 2026-06-30
Return on equity CTM
| FY Dec 2025 | -8.6% |
| FY Dec 2024 | -60.2% |
| FY Dec 2023 | -116.8% |
| FY Dec 2022 | -90.8% |
| FY Dec 2021 | -84.2% |
| Jun 2026 | -6.8% |
| Mar 2026 | -5.1% |
| Dec 2025 | -8.6% |
| Sep 2025 | -15.7% |
| Jun 2025 | -25.1% |
| Mar 2025 | -36.2% |
| Dec 2024 | -60.2% |
| Sep 2024 | -73.1% |
At each fiscal year end
Trailing four quarters at each quarter end
Return on assets
-5.4%
TTM net income over average of 2025-06-30 and 2026-06-30
Return on assets CTM
| FY Dec 2025 | -6.0% |
| FY Dec 2024 | -29.4% |
| FY Dec 2023 | -56.4% |
| FY Dec 2022 | -46.7% |
| FY Dec 2021 | -24.5% |
| Jun 2026 | -5.4% |
| Mar 2026 | -3.8% |
| Dec 2025 | -6.0% |
| Sep 2025 | -10.2% |
| Jun 2025 | -15.1% |
| Mar 2025 | -19.7% |
| Dec 2024 | -29.4% |
| Sep 2024 | -31.3% |
At each fiscal year end
Trailing four quarters at each quarter end
Return on invested capital
n/a
pre-tax loss, no effective tax rate to apply
Return on invested capital CTM
| FY Dec 2025 | n/a |
| FY Dec 2024 | n/a |
| FY Dec 2023 | n/a |
| FY Dec 2022 | n/a |
| FY Dec 2021 | n/a |
| Jun 2026 | n/a |
| Mar 2026 | n/a |
| Dec 2025 | n/a |
| Sep 2025 | n/a |
| Jun 2025 | n/a |
| Mar 2025 | n/a |
| Dec 2024 | n/a |
| Sep 2024 | n/a |
At each fiscal year end
Trailing four quarters at each quarter end
Return on capital employed
-7.5%
operating income (EBIT proxy) over average of 2025-06-30 and 2026-06-30 minus current liabilities
Return on capital employed CTM
| FY Dec 2025 | -8.8% |
| FY Dec 2024 | -28.9% |
| FY Dec 2023 | -70.3% |
| FY Dec 2022 | -39.1% |
| FY Dec 2021 | n/a |
| Jun 2026 | -7.5% |
| Mar 2026 | -5.8% |
| Dec 2025 | -8.8% |
| Sep 2025 | -10.2% |
| Jun 2025 | -17.0% |
| Mar 2025 | -21.8% |
| Dec 2024 | -28.9% |
| Sep 2024 | -40.7% |
At each fiscal year end
Trailing four quarters at each quarter end
P/E, trailing
n/a
trailing loss, a multiple of a loss is not meaningful
P/E, trailing CTM
| FY Dec 2025 | n/a |
| FY Dec 2024 | n/a |
| FY Dec 2023 | n/a |
| FY Dec 2022 | n/a |
| FY Dec 2021 | n/a |
| Jun 2026 | n/a |
| Mar 2026 | n/a |
| Dec 2025 | n/a |
| Sep 2025 | n/a |
| Jun 2025 | n/a |
| Mar 2025 | n/a |
| Dec 2024 | n/a |
| Sep 2024 | n/a |
At each fiscal year end
Trailing four quarters at each quarter end
Enterprise value
n/a
no cash line filed
Enterprise value CTM
| FY Dec 2025 | n/a |
| FY Dec 2024 | n/a |
| FY Dec 2023 | n/a |
| FY Dec 2022 | n/a |
| FY Dec 2021 | n/a |
| Jun 2026 | n/a |
| Mar 2026 | n/a |
| Dec 2025 | n/a |
| Sep 2025 | n/a |
| Jun 2025 | n/a |
| Mar 2025 | n/a |
| Dec 2024 | n/a |
| Sep 2024 | n/a |
At each fiscal year end
Trailing four quarters at each quarter end
FCF yield
+5.5%
TTM free cash flow over market value at close 2026-10-26
FCF yield CTM
| FY Dec 2025 | -2.5% |
| FY Dec 2024 | +1.0% |
| FY Dec 2023 | -16.1% |
| FY Dec 2022 | +1.7% |
| FY Dec 2021 | n/a |
| Jun 2026 | +3.8% |
| Mar 2026 | +3.0% |
| Dec 2025 | -2.5% |
| Sep 2025 | -1.8% |
| Jun 2025 | -2.3% |
| Mar 2025 | -1.7% |
| Dec 2024 | +1.0% |
| Sep 2024 | +24.3% |
At each fiscal year end
Trailing four quarters at each quarter end
PEG, trailing
n/a
trailing loss, a multiple of a loss is not meaningful
PEG, trailing CTM
| FY Dec 2025 | n/a |
| FY Dec 2024 | n/a |
| FY Dec 2023 | n/a |
| FY Dec 2022 | n/a |
| FY Dec 2021 | n/a |
| Jun 2026 | n/a |
| Mar 2026 | n/a |
| Dec 2025 | n/a |
| Sep 2025 | n/a |
| Jun 2025 | n/a |
| Mar 2025 | n/a |
| Dec 2024 | n/a |
| Sep 2024 | n/a |
At each fiscal year end
Trailing four quarters at each quarter end
Price as of 2026-10-26. Hover or tap a tile for its yearly and quarterly history.
Method
TTM is four consecutive fiscal quarters; Q4 is the year minus nine months when not filed. Returns use the average of opening and closing balances. EBIT is approximated by operating income. PEG uses trailing EPS growth.
Fundamentals
Annual figures from XBRL filings. Pick a past date to see them as known then.
| 2025-12 | 2024-12 | 2023-12 | 2022-12 | |
|---|---|---|---|---|
| Revenue | $52.9M | $44.8M | $45.2M | $42.2M |
| Gross profit | $19.4M | $18.3M | $18.7M | $17.6M |
| Operating income | -$2.8M | -$7.2M | -$16.7M | -$10.0M |
| Net income | -$2.4M | -$10.0M | -$17.8M | -$14.9M |
| EPS (diluted) | -0.03 | -0.18 | -0.38 | -0.55 |
| Operating cash flow | -$1.9M | $1.1M | -$2.3M | $990.2K |
| Long-term debt | n/a | $8.0M | $8.1M | $8.4M |
SEC XBRL, fiscal years, as known on 2026-10-28
CTM Stock Sonar score 6/7 axes
Find similar shapesCompareCTM ranks highest on insider conviction (84th percentile) and growth (74th), and lowest on institutional and government (31st), among Services peers.
6 of 7 axes scored. Each is a percentile against sector peers (all companies when the sector is thin); higher is better. An unscored axis is unmeasured, not low. How it is scored
CTM filings, in plain words
Are Castellum insiders buying or selling CTM?
In the 180 days to 2026-10-28, Castellum insiders were net buyers, a net $37.1K across purchases and sales reported on Form 4, by 4 buyers.
Read the full summary
In the 180 days to 2026-10-28, Castellum insiders were net buyers of CTM, a net $37.1K across purchases and sales reported on Form 4 by 4 buyers. 4 different insiders reported purchases within the last 90 days, a cluster buy, which is rarer than a single purchase. Each figure is counted from SEC and House filings as of 2026-10-28, dated the day the filing was made public.
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