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In connection with the amendment and restatement of the Promissory Note on February 22, 2024, the principal amount was repaid in part, monthly payments were scheduled, the term of the Promissory Note was extended and the convertibility feature was removed.  Therefore, at the effective time of the amendment and restatement, the  Promissory Note ceased to be, and the Reporting Person ceased to hold a derivative security ."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"The Buckhout Charitable Remainder Trust, Laurie Buckhout, TTEE, formerly was the holder of a convertible promissory note ( Promissory Note) in the principal amount of $3.7 million, with a maturity date of September 30, 2024, convertible into Common Stock at $0.26 per share. 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Therefore, at the effective time of the amendment and restatement, the  Promissory Note ceased to be, and the Reporting Person ceased to hold a derivative security ."}],"balance_after":0,"derivative":{"underlying":"Common Stock, par value $0.0001 per share"},"source":{"system":"sec-edgar","filing":"0001140361-24-009266","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1946870/000114036124009266/form4.xml","form_type":"4"}},{"id":1856087,"issuer":{"id":7164,"kind":"organization","name":"Castellum, Inc.","symbol":"CTM"},"owners":[{"id":75831,"kind":"person","name":"Fuller Mark C","position":1,"cik":"0001944544","reported_name":"Fuller Mark C","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"CEO, President"}}],"security":"Common 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