Castellum, Inc. — Institutional Ownership
Which tracked institutions hold CTM, and how they changed the position last quarter. Latest holdings as of Mar 31, 2026. Source: SEC 13-F filings.
5
Funds holding
$538786
Total value held
Selling
1 added/new · 2 reduced
| # | Institution | Value | Shares | Δ Shares | Change (QoQ) |
|---|---|---|---|---|---|
| 1 | State Street Corp | $179149 | 303900 | — | Held |
| 2 | Blackrock, Inc. | $156504 | 265486 | — | Held |
| 3 | Northern Trust Corp | $107231 | 181902 | -28709 | -13.63% |
| 4 | Sei Investments Co | $71668 | 121574 | — | NEW BUY |
| 5 | Citigroup Inc | $24234 | 26831 | -2148 | -7.41% |
Aggregated across tracked institutional filers. Reported quarterly on SEC Form 13-F and may lag. For research only — not investment advice.