InsidersTradesSigma
Not enough buy signals with a settled T+90 horizon to measure a track record yet.
Browse the full record of transactions filed by Bell David T. Insider active across 1 company, notably Castellum, Inc.. In total, 3 reports have been recorded. Split: 1 buy · 1 sell. Total volume traded: €295.1m. Activity tracked since 28 November 2022. The latest transaction was filed on 31 March 2026 (Attribution). Regulator: SEC (Form 4). The full history is openly available.
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