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Disclosery

CTM CASTELLUM INC

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COM NEW (common), issuer CIK 1877939

34 managers (34 13F filers) reported a position in CTM shares at 2025-06-30, 6,951,555 shares in all. 13 filers opened a position and 6 filers sold out during the quarter.

Managers
34
13F filers
34
New
13
Added
8
Reduced
2
Sold out
6
Shares held by filers
6,951,555

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q2 2025

Filers in the available 13F reports with a share position at 2025-06-30, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
ESSEX INVESTMENT MANAGEMENT CO LLC2,090,500$2.2M0.4%new13F-HRTimeline
VANGUARD GROUP INCin group VANGUARD GROUP INC1,051,978$1.1M<0.01%+412,35013F-HRTimelineGroup
Legato Capital Management LLC621,409$652K0.08%new13F-HRTimeline
Meridian Wealth Management, LLC616,800$648K0.03%+36,00013F-HRTimeline
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC599,198$629K<0.01%+180,67313F-HRTimelineGroup
Bank of New York Mellon Corpin group Bank of New York Mellon Corp500,001$525K<0.01%-100,00113F-HRTimelineGroup
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC194,733$204K<0.01%new13F-HRTimelineGroup
Savvy Advisors, Inc.191,100$201K0.01%new13F-HRTimeline
STATE STREET CORPin group STATE STREET CORP156,000$164K<0.01%013F-HRTimelineGroup
XTX Topco Ltdin group XTX Topco Ltd135,796$143K0.01%+70,37713F-HRTimelineGroup
BlackRock, Inc.in group BlackRock, Inc.127,421$134K<0.01%013F-HRTimelineGroup
Virtu Financial LLCin group Virtu Financial LLC105,126$110K0.01%+85,99713F-HRTimelineGroup
Cubist Systematic Strategies, LLC94,152$98.9K<0.01%+26,47213F-HRTimeline
NORTHERN TRUST CORPin group NORTHERN TRUST CORP94,120$98.8K<0.01%013F-HRTimelineGroup
Almanack Investment Partners, LLC.50,000$52.5K0.01%013F-HRTimeline
HRT FINANCIAL LP50,395$52K<0.01%new13F-HRTimeline
PKS Advisory Services, LLC42,222$44.3K0.01%013F-HRTimeline
TWO SIGMA INVESTMENTS, LPin group TWO SIGMA INVESTMENTS, LP32,996$34.6K<0.01%new13F-HRTimelineGroup
CITIGROUP INCin group CITIGROUP INC31,628$33.2K<0.01%new13F-HRTimelineGroup
KESTRA PRIVATE WEALTH SERVICES, LLCin group Kestra Advisory Services, LLC27,250$28.6K<0.01%013F-HRTimelineGroup
Squarepoint Ops LLCin group Squarepoint Ops LLC23,940$25.1K<0.01%new13F-HR/ATimelineGroup
Quadrature Capital Ltdin group Quadrature Capital Ltd21,089$22.2K<0.01%new13F-HRTimelineGroup
SUSQUEHANNA INTERNATIONAL GROUP, LLPin group SUSQUEHANNA INTERNATIONAL GRO…17,710$18.6K<0.01%+1913F-HRTimelineGroup
Pathstone Holdings, LLCin group Pathstone Holdings, LLC15,590$16.4K<0.01%new13F-HRTimelineGroup
Blue Trust, Inc.14,724$15.5K<0.01%013F-HRTimeline
Inscription Capital, LLC12,500$13.1K<0.01%-237,50013F-HRTimeline
New Century Financial Group, LLC12,000$12.6K0.01%new13F-HRTimeline
Creative Planningin group Creative Planning10,000$10.5K<0.01%013F-HRTimelineGroup
Sunbelt Securities, Inc.3,000$6K<0.01%new13F-HRTimeline
Global Retirement Partners, LLC4,812$5.05K<0.01%13F-HRTimeline
Strengthening Families & Communities, L…2,700$2.86K<0.01%new13F-HRTimeline
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/589$619<0.01%+22413F-HRTimelineGroup
UBS Group AGin group UBS Group AG76$80<0.01%013F-HRTimelineGroup
CONCOURSE FINANCIAL GROUP SECURITIES, I…0$0013F-HRTimelineValue filed as zero, left out of ratios. Amount filed as zero, left out of ratios.