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The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transaction was effected."}],"balance_after":7800,"source":{"system":"sec-edgar","filing":"0000899243-22-028988","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1853197/000089924322028988/doc4.xml","form_type":"4"}},{"id":2182048,"issuer":{"id":6346,"kind":"organization","name":"Nkarta, Inc."},"owners":[{"id":84052,"kind":"person","name":"Brandenberger Ralph","position":1,"cik":"0001853197","reported_name":"Brandenberger Ralph","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Technical Officer"}}],"security":"Common Stock","published_at":"2022-08-17T16:20:38.000Z","date":"2022-08-15","kind":"exercise","acquired":true,"shares":11000,"price":3.89,"value":42790.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The transactions reported in this Form 4 were effected automatically pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person at least 30 days prior to the trade date."}],"balance_after":18800,"source":{"system":"sec-edgar","filing":"0000899243-22-028988","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1853197/000089924322028988/doc4.xml","form_type":"4"}},{"id":2189671,"issuer":{"id":6346,"kind":"organization","name":"Nkarta, Inc."},"owners":[{"id":84052,"kind":"person","name":"Brandenberger Ralph","position":1,"cik":"0001853197","reported_name":"Brandenberger Ralph","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Technical Officer"}}],"security":"Stock Option (right to buy)","published_at":"2022-08-10T19:05:58.000Z","date":"2022-08-08","kind":"exercise","acquired":false,"shares":340,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The transactions reported in this Form 4 were effected automatically pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person at least 30 days prior to the trade date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"The options exercised were fully vested. 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The price reported above reflects the weighted average price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transaction was effected."}],"balance_after":7800,"source":{"system":"sec-edgar","filing":"0000899243-22-028291","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1853197/000089924322028291/doc4.xml","form_type":"4"}},{"id":2189667,"issuer":{"id":6346,"kind":"organization","name":"Nkarta, Inc."},"owners":[{"id":84052,"kind":"person","name":"Brandenberger Ralph","position":1,"cik":"0001853197","reported_name":"Brandenberger Ralph","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Technical Officer"}}],"security":"Common 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The price reported above reflects the weighted average price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transaction was effected."}],"balance_after":7800,"source":{"system":"sec-edgar","filing":"0000899243-22-026768","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1853197/000089924322026768/doc4.xml","form_type":"4"}},{"id":2201837,"issuer":{"id":6346,"kind":"organization","name":"Nkarta, Inc."},"owners":[{"id":84052,"kind":"person","name":"Brandenberger Ralph","position":1,"cik":"0001853197","reported_name":"Brandenberger Ralph","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Technical Officer"}}],"security":"Common Stock","published_at":"2022-07-26T20:15:02.000Z","date":"2022-07-25","kind":"exercise","acquired":true,"shares":3000,"price":0.41,"value":1230.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The transactions reported in this Form 4 were effected automatically pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person at least 30 days prior to the trade date."}],"balance_after":10800,"source":{"system":"sec-edgar","filing":"0000899243-22-026768","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1853197/000089924322026768/doc4.xml","form_type":"4"}},{"id":2206353,"issuer":{"id":6346,"kind":"organization","name":"Nkarta, Inc."},"owners":[{"id":84052,"kind":"person","name":"Brandenberger Ralph","position":1,"cik":"0001853197","reported_name":"Brandenberger Ralph","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Technical Officer"}}],"security":"Stock Option (right to buy)","published_at":"2022-07-18T18:14:21.000Z","date":"2022-07-15","kind":"grant","acquired":true,"shares":20000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"This option is scheduled to vest and become exercisable in 48 equal monthly installments occurring on the completion of each successive month of the Reporting Person's service to the Issuer following the grant date."}],"balance_after":20000,"derivative":{"exercise_price":14.19,"expiration_date":"2032-07-14","underlying":"Common Stock","underlying_shares":20000},"source":{"system":"sec-edgar","filing":"0000899243-22-026252","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1853197/000089924322026252/doc4.xml","form_type":"4"}},{"id":2225682,"issuer":{"id":6346,"kind":"organization","name":"Nkarta, Inc."},"owners":[{"id":84052,"kind":"person","name":"Brandenberger Ralph","position":1,"cik":"0001853197","reported_name":"Brandenberger Ralph","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP, Technical Operations"}}],"security":"Stock Option (right to buy)","published_at":"2022-06-21T19:06:32.000Z","date":"2022-06-17","kind":"grant","acquired":true,"shares":15000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"This option is scheduled to vest and become exercisable in 48 equal monthly installments occurring on the completion of each successive month of the Reporting Person's service to the Issuer following June 17, 2022."}],"balance_after":15000,"derivative":{"exercise_price":12.25,"expiration_date":"2032-06-16","underlying":"Common Stock","underlying_shares":15000},"source":{"system":"sec-edgar","filing":"0001209191-22-038523","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1853197/000120919122038523/doc4.xml","form_type":"4"}},{"id":2225681,"issuer":{"id":6346,"kind":"organization","name":"Nkarta, Inc."},"owners":[{"id":84052,"kind":"person","name":"Brandenberger Ralph","position":1,"cik":"0001853197","reported_name":"Brandenberger Ralph","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP, Technical Operations"}}],"security":"Common Stock","published_at":"2022-06-21T19:06:32.000Z","date":"2022-06-17","kind":"grant","acquired":true,"shares":2500,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents Restricted Stock Units (\"RSUs\") which vest in four equal annual installments beginning on the first anniversary of the grant date. 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