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David T Bell is Chief Financial Officer at Castellum. OQRO lists 4 transactions filed with the SEC under this name, the latest on Oct 1, 2026, each linked to the official Form 4.
Chief Financial Officer
Disclosures on record
4
Companies involved
1
David T Bell bought shares on the open market in 2022, and has not bought since 2022. Sales in 1 of the 5 years since 2022.
David T Bell reported 1 open-market purchase and 1 sale since 2022; purchases in 2022.
| Year | Bought | Sold |
|---|---|---|
| 2022 | $153M1×1 trade | $153M1×1 trade |
Open-market purchases (code P) and sales (code S) on Forms 4 and 5. Up to Sep 2024 from the SEC's Insider Transactions Data Sets; since Oct 2024 from each filing as it is published. A trade filed twice (an amendment) counts once. Dollar totals use the price the filer reported; lines with no price count as trades without a value.
CastellumCTM
4 disclosures · Nov 2025 – Oct 2026
Oct 1, 20261,396
DetailsOfficial recordJul 1, 20261,202disclosed Jul 2
DetailsOfficial recordMar 31, 20261,329
DetailsOfficial recordNov 11, 2025225Kdisclosed Nov 13
DetailsOfficial recordAs of the latest filing on , David T Bell reported holding 18,651 shares of Castellum (CTM), worth about $8.2K at the last close of $0 (Nov 13, 2026).
| Company | Shares reported | How held | Last close | Value at last close | Reported |
|---|---|---|---|---|---|
| Castellum CTM | 18,651 | 19K direct | $0 | $8.2K | Oct 1, 2026 |
Is this David T Bell’s net worth? No. A Form 4 reports the shares an insider owns in one company after each transaction, directly or through trusts and entities. It says nothing about cash, other investments, property or debt, options not yet exercised are not counted here, and a holding reported some time ago may have changed without a new filing. The value is shares times the last stored close, not a price anyone received. Sources: the filings listed below, each linked to EDGAR. Compare with the biggest insider stakes.
On the latest SEC Form 4, dated Oct 1, 2026, David T Bell reported holding 18,651 shares of Castellum (CTM). At the last close of $0 on Nov 13, 2026, that is about $8.2K. This is the stake disclosed in filings, not a net worth.
David T Bell bought shares on the open market in 2022, and has not bought since 2022. Sales in 1 of the 5 years since 2022.
In SEC filings since 2022: the latest open-market purchase is from 2022; the latest open-market sale is from 2022.
Castellum (CTM), from 2022 to 2022: 1 purchase and 1 sale.
David T Bell reported 1 open-market purchase and 1 sale here, 2022.
Closing prices and the companies' last annual figures; a − or + is a fact of the close, not a forecast.
