CTM

Castellum Inc Cross-source read$0.62 0.49%
IndustrialsCUSIP 14838T204· EOD Sep 11, 2026

Among active 13F managers last quarter, 4 opened and 2 added, while 1 reduced; the largest holder to move was Sei Investments Co (−63%). Over the last 180 days, 4 insiders bought and 1 insider sold, a net +$22K in open-market trades.

Tracked 13F holders
30
20 in Q2 2026 filings
13F value (tracked)
$4.9M
Smart-money readBullish
Net sellingNet buying
Funds · active managers, latest 13F
6 adding · 1 trimming
Insiders · Form 4 open-market, 180d
4 buying · 1 selling · +$22K
US House · STOCK Act, 180d
0 buying · 0 selling

Funds lean in and no leg opposes.

Price & smart-money activity

$0.62 0.49%5Y +4466.2%
$0.01$0.70$1.40$2.09$2.7920212022202320242025202622212223524532452273159127824210462
Hover for who · click for detailEnd-of-day closing prices52w $0.54 – $1.31

Who owns CTM?

30 tracked 13F filers · ranked by shares held

30 tracked 13F filers disclose a position in CTM as of the latest SEC 13F filings, a combined $4.9M in reported value. Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.

#FundSharesPosition valueLast moveAs ofHistory
1Vanguard Capital Management LLC3.1M
$2.2M
+0.4%
Added · +13K sh
Q2 2026
2Geode Capital Management, LLC816K
$588K
−14%
Reduced · −129K sh
Q2 2026
3Meridian Wealth Management, LLC786K
$463K
+5.5%
Added · +41K sh
Q1 2026
4Vanguard Fiduciary Trust Co493K
$355K
+18%
Added · +74K sh
Q2 2026
5State Street Corp304K
$219K
Held
Q2 2026
6BlackRock, Inc.265K
$191K
Held
Q2 2026
7Jane Street Group, LLC237K
$140K
−31%
Reduced · −107K sh
Q1 2026
8Savvy Advisors, Inc.222K
$131K
Held
Q1 2026
9Northern Trust Corp182K
$107K
−14%
Reduced · −29K sh
Q1 2026
10UBS Group AG154K
$91K
−93%
Reduced · −2.0M sh
Q1 2026
11Sei Investments Co122K
$72K
−63%
Reduced · −211K sh
Q1 2026
12Bridgeway Capital Management, LLC95K
$68K
Held
Q2 2026
13HUB Investment Partners, LLC57K
$41K
New
+57K sh
Q2 2026
14Almanack Investment Partners, LLC.50K
$36K
Held
Q2 2026
15Two Sigma Securities, LLC41K
$29K
+166%
Added · +25K sh
Q2 2026
16Arq Wealth Advisors, LLC35K
$23K
New
+35K sh
Q2 2026
17Pathstone Holdings, LLC31K
$22K
Held
Q2 2026
18Vanguard Global Advisers, LLC27K
$20K
Held
Q2 2026
19Kestra Private Wealth Services, LLC27K
$20K
Held
Q2 2026
20Capital Advisors Inc22K
$16K
Held
Q2 2026
21ACT Advisors, LLC.21K
$15K
New
+21K sh
Q2 2026
22Creative Planning20K
$12K
+1.6%
Added · +320 sh
Q1 2026
23PKS Advisory Services, LLC19K
$14K
Added
Added · +19K sh
Q2 2026
24Blue Trust, Inc.15K
$11K
Held
Q2 2026
25Welch Group, LLC10K
$6K
Held
Q1 2026

Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.

Is CTM being bought or sold by institutions?

Last quarter, 4 funds opened a new position in CTM and 2 added to an existing one, while 1 reduced. Based on 13F filings from active, signal-eligible managers (passive index funds and other mechanical holders are excluded from this count).

Opened
4
funds took a first position
Added
2
added to an existing position
Reduced
1
reduced, still holding
Biggest moves · ranked by size of the change, positions above a floor

Funds that own CTM also own

CompanyCo-held byTheir position there
Nvidia CorpNVDA13 funds$5.1B
Microsoft CorpMSFT13 funds$3.3B
Alphabet Inc-CL CGOOG13 funds$2.1B
Broadcom IncAVGO13 funds$1.8B
Alphabet Inc-CL AGOOGL13 funds$1.5B
Meta Platforms Inc-Class AMETA13 funds$1.3B
Eli Lilly & CoLLY13 funds$954.0M
Visa Inc-Class A SharesV13 funds$720.0M
Johnson & JohnsonJNJ13 funds$710.9M
Applied Materials IncAMAT13 funds$574.5M
Advanced Micro DevicesAMD13 funds$540.5M
Abbvie IncABBV13 funds$503.4M

Ranked by how many of CTM's tracked holders also hold each name. The last column is those co-holders' combined reported position in that name, not in CTM.

Insider activity (Form 4)

Full insider page →
Buys · 180d
$43K
4 insiders
Sells · 180d
$21K
1 insider
Net · 180d
$22K
10 open-market transactions
DateInsiderRoleActionSharesValue
Sep 9, 2026Merriman AndrewChief Operating OfficerBuy (P)
2 lots, same day
50K$31K
Jul 1, 2026Bell David TChief Financial OfficerBuy (P)1K$736
Jul 1, 2026Ives Glen RPresidentBuy (P)1K$772
Jul 1, 2026Martin Tammy LGeneral Counsel and SecretaryBuy (P)1K$736
Jul 1, 2026Merriman AndrewChief Operating OfficerBuy (P)1K$736
Mar 27, 2026Ives Glen RPresidentBuy (P)2K$1K
Mar 27, 2026Merriman AndrewChief Operating OfficerBuy (P)2K$1K
Mar 26, 2026Ives Glen RPresidentBuy (P)10K$7K
Mar 25, 2026McMillen Charles ThomasDirectorSell (S)30K$21K
Mar 18, 2026Merriman AndrewChief Operating OfficerBuy (P)3K$2K
Mar 18, 2026McMillen Charles ThomasDirectorSell (S)55K$44K
Dec 19, 2025Wright Jay OGeneral Counsel, Secretary, DirectorSell (S)30K$32K

One row per insider, day and transaction code; shares and value are summed across the lots. Every lot is on the full insider page and in the filing.

Do institutions, insiders and Congress agree?

Confluence: insiders and funds buying

Where institutional funds (13F), corporate insiders (Form 4) and US House members (STOCK Act) are buying or selling the same name in the same window. Green is buying, red is selling.

SEC EDGAR 13F + Form 4 + US House STOCK Act{ }get_ticker_confluence · API & MCP

Signals by source

Insiders and Congress: last 180 days. Funds: latest 13F, top 100 holders incl. passive

SourceBuyingSellingNet
13F funds
Top 100 holders by value, passive included; the hero counts active managers only
76
Insiders
Form 4 open-market
41+$22K
US House
STOCK Act trades
00$0
Sector rotation
CTM is in Industrials, which smart money is rotating INTO
+$842.8M

Capital Rotation reports where institutional capital disclosed rotating, as of the latest public SEC 13F filings. It is data, not investment advice, a recommendation, or a prediction. Filings lag about 45 days and cover long US equity positions only. Past disclosed flows do not indicate future prices. Do your own research; consult a licensed advisor.

Institutional ownership over time

20 tracked filers in Q2 2026 filingsstill filing
01836Q3 2024Q1 2025Q3 2025Q1 2026Q2 2026
tracked filers holding their reported valueQ2 2026 filings so far: $3.9M
Each bar counts tracked filers with a position in that quarter's filings, so the newest bar excludes filers still on an earlier quarter. Arkolith's tracked universe has grown over this window; part of any long-run rise is coverage, not new buyers.

Recent filings

15 most recent

Keep exploring

Connected entities for CTM

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Ask your agent what changed in CTM

This stock page is the public Follow view. For one current, evidence-backed answer, use capital_change_brief through REST or MCP. It compares tracked 13F changes with qualifying Form 4 activity and cites the SEC evidence.

Copy-paste
curl -H "Authorization: Bearer YOUR_API_KEY" \
  "https://arkolith.com/api/v1/stocks/CTM/capital-change-brief"
Ask your agent
Use Arkolith's capital_change_brief for CTM.
Tell me what changed, whether insider activity
corroborates it, and cite the SEC evidence.

13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for CTM. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.