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The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities Exchange Commission, upon request, full information regarding the number of securities purchased at each separate price within the range set forth in this footnote (1) to this Form 4."}],"balance_after":66710,"source":{"system":"sec-edgar","filing":"0000950170-23-072291","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1120355/000095017023072291/ownership.xml","form_type":"4"}},{"id":1854747,"issuer":{"id":7255,"kind":"organization","name":"TScan Therapeutics, Inc."},"owners":[{"id":95963,"kind":"person","name":"BARBERICH TIMOTHY J","position":1,"cik":"0001120355","reported_name":"BARBERICH TIMOTHY J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Stock Option (Right to Buy)","published_at":"2023-06-15T18:25:52.000Z","date":"2023-06-13","kind":"grant","planned":false,"acquired":true,"shares":35000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"The shares subject to this option shall vest and become exercisable in full upon the earlier to occur of (i) June 13, 2024 and (ii) the next annual meeting of the Issuer's stockholders, subject to the Reporting Person's continued service at such time."}],"balance_after":35000,"derivative":{"exercise_price":2.66,"expiration_date":"2033-06-12","underlying":"Voting Common Stock","underlying_shares":35000},"source":{"system":"sec-edgar","filing":"0000899243-23-015646","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1120355/000089924323015646/doc4.xml","form_type":"4"}},{"id":1865511,"issuer":{"id":7255,"kind":"organization","name":"TScan Therapeutics, Inc."},"owners":[{"id":95963,"kind":"person","name":"BARBERICH TIMOTHY J","position":1,"cik":"0001120355","reported_name":"BARBERICH TIMOTHY J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Voting Common Stock","published_at":"2023-06-06T19:53:38.000Z","date":"2023-06-02","kind":"purchase","planned":false,"acquired":true,"shares":37880,"price":2.6284,"value":99563.792,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported in Column 4 is a weighted average price. 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