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Pursuant to Rule 13d-4, the reporting person disclaims beneficial ownership of the transferred shares to the extent he does not have a pecuniary interest in such shares."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 1,420,000 shares held in a Uniform Gift to Minors Act Account for the benefit of the reporting person grandchildren. The reporting person retains voting control of the shares, but pursuant to Rule 13d-4, he disclaims beneficial ownership of the shares to the extent he does not have a pecuniary interest in such shares."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F1","text":"On August 1, 2023, the reporting person gifted 700,000 shares to a Uniform Gift to Minors Act Account for the benefit of his grandchildren. The reporting person retains voting control of the shares. Pursuant to Rule 13d-4, the reporting person disclaims beneficial ownership of the transferred shares to the extent he does not have a pecuniary interest in such shares."}],"balance_after":1420000,"source":{"system":"sec-edgar","filing":"0000020639-23-000007","document":"primary_doc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/20639/000002063923000007/primary_doc.xml","form_type":"4"}},{"id":1817481,"issuer":{"id":7563,"kind":"organization","name":"AmBase Corp"},"owners":[{"id":110915,"kind":"person","name":"BIANCO RICHARD A","position":1,"cik":"0000904660","reported_name":"BIANCO RICHARD A","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"CEO"}}],"security":"Common stock","published_at":"2023-08-03T20:38:48.000Z","date":"2023-08-01","kind":"gift","planned":false,"acquired":false,"shares":700000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"On August 1, 2023, the reporting person gifted 700,000 shares to a Uniform Gift to Minors Act Account for the benefit of his grandchildren. The reporting person retains voting control of the shares. Pursuant to Rule 13d-4, the reporting person disclaims beneficial ownership of the transferred shares to the extent he does not have a pecuniary interest in such shares."}],"balance_after":202547,"source":{"system":"sec-edgar","filing":"0000020639-23-000007","document":"primary_doc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/20639/000002063923000007/primary_doc.xml","form_type":"4"}},{"id":1875758,"issuer":{"id":7563,"kind":"organization","name":"AmBase Corp"},"owners":[{"id":110915,"kind":"person","name":"BIANCO RICHARD A","position":1,"cik":"0000904660","reported_name":"BIANCO RICHARD A","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"CEO"}}],"security":"Common stock","published_at":"2023-05-30T17:35:43.000Z","date":"2023-05-26","kind":"purchase","planned":false,"acquired":true,"shares":745000,"price":74500,"value":55502500000.0,"ownership":{"direct":true},"footnotes":[{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"Includes 720,000 shares held in an Uniform Gifts to Minors Act account for the benefit of his grandchildren. Mr. R.A. Bianco retains voting control of the shares, but pursuant to Rule 13d-4, he disclaims beneficial ownership of the shares to the extent he does not have a pecuniary interest in such shares."}],"balance_after":1622547,"source":{"system":"sec-edgar","filing":"0000020639-23-000005","document":"primary_doc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/20639/000002063923000005/primary_doc.xml","form_type":"4"}},{"id":2407687,"issuer":{"id":7563,"kind":"organization","name":"AmBase Corp"},"owners":[{"id":110915,"kind":"person","name":"BIANCO RICHARD A","position":1,"cik":"0000904660","reported_name":"BIANCO RICHARD A","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"CEO"}}],"security":"Common Stock","published_at":"2022-02-09T19:42:22.000Z","date":"2021-06-17","kind":"gift","acquired":true,"shares":720000,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"BY UGMA"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"On June 17, 2021, the reporting person gifted 720,000 shares to a Uniform Gifts to Minors Act Account for the benefit of his grandchildren. The reporting person retains voting control of the transferred shares. Pursuant to Rule 13d-4, the reporting person disclaims beneficial ownership of the transferred shares to the extent he does not have a pecuniary interest in such shares."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F1","text":"On June 17, 2021, the reporting person gifted 720,000 shares to a Uniform Gifts to Minors Act Account for the benefit of his grandchildren. The reporting person retains voting control of the transferred shares. Pursuant to Rule 13d-4, the reporting person disclaims beneficial ownership of the transferred shares to the extent he does not have a pecuniary interest in such shares."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"On June 17, 2021, the reporting person gifted 720,000 shares to a Uniform Gifts to Minors Act Account for the benefit of his grandchildren. The reporting person retains voting control of the transferred shares. Pursuant to Rule 13d-4, the reporting person disclaims beneficial ownership of the transferred shares to the extent he does not have a pecuniary interest in such shares."}],"balance_after":157547,"source":{"system":"sec-edgar","filing":"0000020639-22-000002","document":"primary_doc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/20639/000002063922000002/primary_doc.xml","form_type":"5"}},{"id":2407686,"issuer":{"id":7563,"kind":"organization","name":"AmBase Corp"},"owners":[{"id":110915,"kind":"person","name":"BIANCO RICHARD A","position":1,"cik":"0000904660","reported_name":"BIANCO RICHARD A","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"CEO"}}],"security":"Common Stock","published_at":"2022-02-09T19:42:22.000Z","date":"2021-06-17","kind":"gift","acquired":false,"shares":720000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"On June 17, 2021, the reporting person gifted 720,000 shares to a Uniform Gifts to Minors Act Account for the benefit of his grandchildren. The reporting person retains voting control of the transferred shares. Pursuant to Rule 13d-4, the reporting person disclaims beneficial ownership of the transferred shares to the extent he does not have a pecuniary interest in such shares."}],"balance_after":157547,"source":{"system":"sec-edgar","filing":"0000020639-22-000002","document":"primary_doc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/20639/000002063922000002/primary_doc.xml","form_type":"5"}},{"id":3138573,"issuer":{"id":7563,"kind":"organization","name":"AmBase Corp"},"owners":[{"id":110915,"kind":"person","name":"BIANCO RICHARD A","position":1,"cik":"0000904660","reported_name":"BIANCO RICHARD A","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & CEO"}}],"security":"Common Stock","published_at":"2020-05-22T15:15:57.000Z","date":"2020-05-20","kind":"purchase","acquired":true,"shares":100000,"price":0.18,"value":18000.0,"ownership":{"direct":true},"balance_after":877547,"source":{"system":"sec-edgar","filing":"0000020639-20-000014","document":"primary_doc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/20639/000002063920000014/primary_doc.xml","form_type":"4"}}]}