Castellum, Inc. - CTM

Detailed investor-level table based on 13F positions.

Shareholders (13F)

Quarter: Q4 2025 · Compare: Q3 2025
13D/13G major owners: Ownership tab.
Methodology: Market value and % of portfolio use SEC reported VALUE ($000). For PUT/CALL positions this reflects reported underlying exposure, not premium cash paid/received. Details.
Rows: 0
Investor History Status Shares held Market value ($000) % of portfolio Previous % Rank Change in shares % change in shares Source Date reported
VANGUARD GROUP INC History Added to 3,473,227 3,136 0.0% 0.0% 1 +2,195,312 171.79% Q4 2025 Jan 29, 2026
UBS Group AG History Added to 2,155,157 1,946 0.0% 0.0% 2 +2,133,376 9794.67% Q4 2025 Jan 29, 2026
ESSEX INVESTMENT MANAGEMENT CO LLC History Reduced 2,114,029 1,909 0.29% 0.36% 3 -39,588 -1.84% Q4 2025 Feb 13, 2026
GEODE CAPITAL MANAGEMENT, LLC History Added to 773,724 699 0.0% 0.0% 4 +50,197 6.94% Q4 2025 Feb 09, 2026
Meridian Wealth Management, LLC History Added to 745,150 673 0.02% 0.03% 5 +60,550 8.84% Q4 2025 Feb 04, 2026
Legato Capital Management LLC History Added to 680,945 615 0.05% 0.07% 6 +59,536 9.58% Q4 2025 Feb 06, 2026
GOLDMAN SACHS GROUP INC History Reduced 353,526 319 0.0% 0.0% 7 -15,106 -4.1% Q4 2025 Mar 25, 2026
JANE STREET GROUP, LLC History Added to 343,842 310 0.0% 0.0% 8 +8,138 2.42% Q4 2025 Feb 12, 2026
SEI INVESTMENTS CO History New 333,071 300 0.0% 9 +333,071 New Q4 2025 Feb 13, 2026
STATE STREET CORP History No change 303,900 274 0.0% 0.0% 10 0 0.0% Q4 2025 Feb 13, 2026
BlackRock, Inc. History No change 265,486 239 0.0% 0.0% 11 0 0.0% Q4 2025 Feb 12, 2026
Savvy Advisors, Inc. History Reduced 221,800 200 0.01% 0.01% 12 -5,200 -2.29% Q4 2025 Jan 20, 2026
Quadrature Capital Ltd History Added to 217,471 196 0.0% 0.0% 13 +161,752 290.3% Q4 2025 Feb 17, 2026
NORTHERN TRUST CORP History Added to 210,611 190 0.0% 0.0% 14 +70,128 49.92% Q4 2025 Feb 17, 2026
SUSQUEHANNA INTERNATIONAL GROUP, LLP History Added to 102,556 92 0.0% 0.0% 15 +84,865 479.71% Q4 2025 Feb 17, 2026
Bank of New York Mellon Corp History Reduced 100,002 90 0.0% 0.0% 16 -250,000 -71.43% Q4 2025 Feb 10, 2026
BRIDGEWAY CAPITAL MANAGEMENT, LLC History No change 94,794 85 0.0% 0.0% 17 0 0.0% Q4 2025 Feb 17, 2026
TWO SIGMA INVESTMENTS, LP History Reduced 75,384 68 0.0% 0.0% 18 -2,181 -2.81% Q4 2025 Feb 17, 2026
Almanack Investment Partners, LLC. History No change 50,000 45 0.01% 0.01% 19 0 0.0% Q4 2025 Jan 29, 2026
Inspire Advisors, LLC History New 41,700 37 0.0% 20 +41,700 New Q4 2025 Feb 13, 2026
Point72 Asset Management, L.P. History New 34,668 31 0.0% 21 +34,668 New Q4 2025 Feb 17, 2026
Pathstone Holdings, LLC History New 31,179 28 0.0% 22 +31,179 New Q4 2025 Feb 13, 2026
Squarepoint Ops LLC History New 26,781 24 0.0% 24 +26,781 New Q4 2025 Feb 13, 2026
CITIGROUP INC History Reduced 26,831 24 0.0% 0.0% 23 -2,148 -7.41% Q4 2025 Feb 13, 2026
KESTRA PRIVATE WEALTH SERVICES, LLC History No change 27,250 24 0.0% 0.0% 25 0 0.0% Q4 2025 Jan 29, 2026
ROYAL BANK OF CANADA History New 22,000 20 0.0% 26 +22,000 New Q4 2025 Feb 17, 2026
Creative Planning History Added to 20,000 18 0.0% 0.0% 27 +10,000 100.0% Q4 2025 Feb 17, 2026
Centiva Capital, LP History Reduced 19,409 17 0.0% 0.0% 29 -102,819 -84.12% Q4 2025 Feb 13, 2026
PKS Advisory Services, LLC History Reduced 18,931 17 0.0% 0.01% 28 -23,291 -55.16% Q4 2025 Feb 02, 2026
Virtu Financial LLC History New 16,804 15 0.0% 30 +16,804 New Q4 2025 Feb 23, 2026
Global Retirement Partners, LLC History No change 16,439 14 0.0% 0.0% 31 0 0.0% Q4 2025 Feb 06, 2026
Blue Trust, Inc. History No change 14,724 13 0.0% 0.0% 32 0 0.0% Q4 2025 Jan 16, 2026
Revisor Wealth Management LLC History Reduced 12,922 12 0.0% 0.01% 33 -5,019 -27.98% Q4 2025 Jan 27, 2026
Independent Advisor Alliance History Reduced 12,835 11 0.0% 0.0% 34 -3,106 -19.48% Q4 2025 Feb 04, 2026
Inscription Capital, LLC History No change 12,500 11 0.0% 0.0% 35 0 0.0% Q4 2025 Jan 29, 2026
Welch Group, LLC History New 10,000 9 0.0% 36 +10,000 New Q4 2025 Jan 26, 2026
JONES FINANCIAL COMPANIES LLLP History Added to 6,166 5 0.0% 37 +5,666 1133.2% Q4 2025 Feb 17, 2026
Tower Research Capital LLC (TRC) History Reduced 2,973 2 0.0% 0.0% 38 -6,061 -67.09% Q4 2025 Feb 17, 2026
Strengthening Families & Communities, LLC History New 3,000 2 0.0% 39 +3,000 New Q4 2025 Feb 03, 2026
XTX Topco Ltd History Closed out 0 0 0.01% -204,717 -100.0% Q3 2025 Nov 14, 2025
MORGAN STANLEY History Closed out 0 0 0.0% -73,714 -100.0% Q3 2025 Nov 14, 2025
TWO SIGMA SECURITIES, LLC History Closed out 0 0 0.0% -25,739 -100.0% Q3 2025 Nov 14, 2025
TCFG WEALTH MANAGEMENT, LLC History Closed out 0 0 0.01% -15,596 -100.0% Q3 2025 Nov 21, 2025
GK Wealth Management LLC History Closed out 0 0 0.01% -15,204 -100.0% Q3 2025 Nov 06, 2025
Bay Colony Advisory Group, Inc d/b/a Bay Colony Advisors History Closed out 0 0 0.0% -12,630 -100.0% Q3 2025 Oct 24, 2025
BANK OF AMERICA CORP /DE/ History Added to 866 0 +183 26.79% Q4 2025 Feb 17, 2026
JPMORGAN CHASE & CO History Closed out 0 0 -31 -100.0% Q3 2025 Nov 26, 2025