{"transactions":[{"id":1000444,"issuer":{"id":7164,"kind":"organization","name":"Castellum, Inc.","symbol":"CTM"},"owners":[{"id":73231,"kind":"person","name":"Champoux Bernard S","position":1,"cik":"0001946441","reported_name":"Champoux Bernard S","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Stock Options","published_at":"2025-11-13T06:51:40.000Z","date":"2025-11-11","kind":"grant","planned":false,"acquired":true,"shares":100000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"As compensation for his service as an independent member of the Board of Directors, Mr. Champoux received 100,000 stock options granted pursuant to the terms of the Castellum, Inc. Second Amended 2021 Stock Incentive Plan to purchase 100,000 shares of common stock which vest ratably over a period of twenty months commencing December 1, 2025."}],"balance_after":100000,"derivative":{"exercise_price":1.19,"expiration_date":"2032-11-10","underlying":"Common Stock","underlying_shares":100000},"source":{"system":"sec-edgar","filing":"0001877939-25-000119","document":"wk-form4_1763034697.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1946441/000187793925000119/wk-form4_1763034697.xml","form_type":"4"}},{"id":1460481,"issuer":{"id":7164,"kind":"organization","name":"Castellum, Inc.","symbol":"CTM"},"owners":[{"id":73231,"kind":"person","name":"Champoux Bernard S","position":1,"cik":"0001946441","reported_name":"Champoux Bernard S","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Stock Options","published_at":"2024-07-03T06:03:01.000Z","date":"2024-07-01","kind":"grant","planned":false,"acquired":true,"shares":250000,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"As compensation for his service as an independent member of the Board of Directors, Mr. Champoux received 250,000 stock options granted pursuant to the terms of the Castellum, Inc. Amended 2021 Stock Incentive Plan which vest quarterly over a one year period."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"As compensation for his service as an independent member of the Board of Directors, Mr. Champoux received 250,000 stock options granted pursuant to the terms of the Castellum, Inc. Amended 2021 Stock Incentive Plan which vest quarterly over a one year period."}],"balance_after":250000,"derivative":{"exercise_price":0.212,"expiration_date":"2031-06-30","underlying":"Common Stock","underlying_shares":250000},"source":{"system":"sec-edgar","filing":"0001946441-24-000004","document":"wk-form4_1720000974.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1946441/000194644124000004/wk-form4_1720000974.xml","form_type":"4"}},{"id":1940412,"issuer":{"id":7164,"kind":"organization","name":"Castellum, Inc.","symbol":"CTM"},"owners":[{"id":73231,"kind":"person","name":"Champoux Bernard S","position":1,"cik":"0001946441","reported_name":"Champoux Bernard S","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":true,"other_text":"Chair of Board of Directors"}}],"security":"Common Stock","published_at":"2023-03-23T16:16:46.000Z","date":"2023-03-21","kind":"purchase","planned":false,"acquired":true,"shares":50420,"price":1.19,"value":59999.8,"ownership":{"direct":true},"footnotes":[{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Represents shares of common stock issued to Reporting Person as compensation for service as a member of the board of directors in fiscal year 2023, which vest monthly through 12/31/2023."}],"balance_after":104536,"source":{"system":"sec-edgar","filing":"0001575872-23-000425","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1946441/000157587223000425/ownership.xml","form_type":"4"}},{"id":1940411,"issuer":{"id":7164,"kind":"organization","name":"Castellum, Inc.","symbol":"CTM"},"owners":[{"id":73231,"kind":"person","name":"Champoux Bernard S","position":1,"cik":"0001946441","reported_name":"Champoux Bernard S","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":true,"other_text":"Chair of Board of Directors"}}],"security":"Common Stock","published_at":"2023-03-23T16:16:46.000Z","date":"2023-03-21","kind":"purchase","planned":false,"acquired":true,"shares":12500,"price":1.2,"value":15000.0,"ownership":{"direct":true},"footnotes":[{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"Represents shares of common stock issued to Reporting Person as compensation for service as a member of the board of directors in fiscal year 2022."}],"balance_after":54116,"source":{"system":"sec-edgar","filing":"0001575872-23-000425","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1946441/000157587223000425/ownership.xml","form_type":"4"}},{"id":2094721,"issuer":{"id":7164,"kind":"organization","name":"Castellum, Inc.","symbol":"CTM"},"owners":[{"id":73231,"kind":"person","name":"Champoux Bernard S","position":1,"cik":"0001946441","reported_name":"Champoux Bernard S","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":true,"other_text":"Chair of Board of Directors"}}],"security":"Common Stock","published_at":"2022-12-06T07:02:41.000Z","date":"2022-12-05","kind":"purchase","acquired":true,"shares":900,"price":954,"value":858600.0,"ownership":{"direct":true},"balance_after":41616,"source":{"system":"sec-edgar","filing":"0001575872-22-001252","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1946441/000157587222001252/ownership.xml","form_type":"4"}},{"id":2094720,"issuer":{"id":7164,"kind":"organization","name":"Castellum, Inc.","symbol":"CTM"},"owners":[{"id":73231,"kind":"person","name":"Champoux Bernard S","position":1,"cik":"0001946441","reported_name":"Champoux Bernard S","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":true,"other_text":"Chair of Board of Directors"}}],"security":"Common Stock","published_at":"2022-12-06T07:02:41.000Z","date":"2022-12-02","kind":"purchase","acquired":true,"shares":100,"price":94.5,"value":9450.0,"ownership":{"direct":true},"balance_after":40716,"source":{"system":"sec-edgar","filing":"0001575872-22-001252","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1946441/000157587222001252/ownership.xml","form_type":"4"}}]}