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The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide full information regarding the number of shares and the prices at which the transactions were effected upon the request to the SEC staff, the Issuer, or a security holder of the Issuer."}],"balance_after":54627,"source":{"system":"sec-edgar","filing":"0001193125-26-359586","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/906709/000119312526359586/ownership.xml","form_type":"4"}},{"id":703680,"issuer":{"id":4364,"kind":"organization","name":"NEKTAR THERAPEUTICS","symbol":"NKTR"},"owners":[{"id":21390,"kind":"person","name":"ROBIN HOWARD W","position":1,"cik":"0001206869","reported_name":"ROBIN HOWARD W","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & CEO"}}],"security":"Stock Option","published_at":"2026-07-24T22:34:39.000Z","date":"2026-07-24","kind":"grant","planned":false,"acquired":true,"shares":57200,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"These stock options were granted on December 13, 2024 under the 2017 Amended and Restated Performance Incentive Plan and at the time of their grant were subject to both performance-based and time-based vesting requirements. 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The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide full information regarding the number of shares and the prices at which the transactions were effected upon the request to the SEC staff, the Issuer, or a security holder of the Issuer."}],"balance_after":55045,"source":{"system":"sec-edgar","filing":"0001193125-26-276236","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/906709/000119312526276236/ownership.xml","form_type":"4"}},{"id":732746,"issuer":{"id":4364,"kind":"organization","name":"NEKTAR THERAPEUTICS","symbol":"NKTR"},"owners":[{"id":21390,"kind":"person","name":"ROBIN HOWARD W","position":1,"cik":"0001206869","reported_name":"ROBIN HOWARD W","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & CEO"}}],"security":"Common Stock","published_at":"2026-06-18T23:08:28.000Z","date":"2026-06-17","kind":"sale","planned":true,"acquired":false,"shares":5500,"price":60.81,"value":334455.0,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"This transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 13, 2026."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"This transaction was executed in multiple trades at prices ranging from $60.22 to $61.21. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide full information regarding the number of shares and the prices at which the transactions were effected upon the request to the SEC staff, the Issuer, or a security holder of the Issuer."}],"balance_after":59545,"source":{"system":"sec-edgar","filing":"0001193125-26-276236","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/906709/000119312526276236/ownership.xml","form_type":"4"}},{"id":732745,"issuer":{"id":4364,"kind":"organization","name":"NEKTAR THERAPEUTICS","symbol":"NKTR"},"owners":[{"id":21390,"kind":"person","name":"ROBIN HOWARD W","position":1,"cik":"0001206869","reported_name":"ROBIN HOWARD W","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & CEO"}}],"security":"Common Stock","published_at":"2026-06-18T23:08:28.000Z","date":"2026-06-16","kind":"sale","planned":true,"acquired":false,"shares":4697,"price":60.71,"value":285154.87,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"This transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 13, 2026."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"This transaction was executed in multiple trades at prices ranging from $60.37 to $61.15. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide full information regarding the number of shares and the prices at which the transactions were effected upon the request to the SEC staff, the Issuer, or a security holder of the Issuer."}],"balance_after":65045,"source":{"system":"sec-edgar","filing":"0001193125-26-276236","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/906709/000119312526276236/ownership.xml","form_type":"4"}},{"id":732744,"issuer":{"id":4364,"kind":"organization","name":"NEKTAR THERAPEUTICS","symbol":"NKTR"},"owners":[{"id":21390,"kind":"person","name":"ROBIN HOWARD W","position":1,"cik":"0001206869","reported_name":"ROBIN HOWARD W","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & CEO"}}],"security":"Common Stock","published_at":"2026-06-18T23:08:28.000Z","date":"2026-06-16","kind":"sale","planned":true,"acquired":false,"shares":5303,"price":59.97,"value":318020.91,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"This transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 13, 2026."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"This transaction was executed in multiple trades at prices ranging from $59.35 to $60.33 The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide full information regarding the number of shares and the prices at which the transactions were effected upon the request to the SEC staff, the Issuer, or a security holder of the Issuer."}],"balance_after":69742,"source":{"system":"sec-edgar","filing":"0001193125-26-276236","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/906709/000119312526276236/ownership.xml","form_type":"4"}},{"id":768874,"issuer":{"id":4364,"kind":"organization","name":"NEKTAR THERAPEUTICS","symbol":"NKTR"},"owners":[{"id":21390,"kind":"person","name":"ROBIN HOWARD W","position":1,"cik":"0001206869","reported_name":"ROBIN HOWARD W","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & CEO"}}],"security":"Common Stock","published_at":"2026-05-21T22:26:10.000Z","date":"2026-05-19","kind":"sale","planned":false,"acquired":false,"shares":444,"price":65.51,"value":29086.44,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents the number of shares sold by the reporting person to cover required tax withholding obligations in connection with the vesting of the RSUs held by the reporting person and does not represent a discretionary trade by the reporting person."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"This transaction was executed in multiple trades at prices ranging from $64.88 to $68.43. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide full information regarding the number of shares and the prices at which the transactions were effected upon the request to the SEC staff, the Issuer, or a security holder of the Issuer."}],"balance_after":75045,"source":{"system":"sec-edgar","filing":"0001193125-26-235027","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/906709/000119312526235027/ownership.xml","form_type":"4"}},{"id":891618,"issuer":{"id":4364,"kind":"organization","name":"NEKTAR THERAPEUTICS","symbol":"NKTR"},"owners":[{"id":21390,"kind":"person","name":"ROBIN HOWARD W","position":1,"cik":"0001206869","reported_name":"ROBIN HOWARD W","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & CEO"}}],"security":"Common Stock","published_at":"2026-02-21T00:10:10.000Z","date":"2026-02-18","kind":"sale","planned":false,"acquired":false,"shares":423,"price":73,"value":30879.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents the number of shares sold by the reporting person to cover required tax withholding obligations in connection with the vesting of the RSUs held by the reporting person and does not represent a discretionary trade by the reporting person."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"This transaction was executed in multiple trades at prices ranging from $72.51 to $74.00. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide full information regarding the number of shares and the prices at which the transactions were effected upon the request to the SEC staff, the Issuer, or a security holder of the Issuer."}],"balance_after":75489,"source":{"system":"sec-edgar","filing":"0001193125-26-061885","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/906709/000119312526061885/ownership.xml","form_type":"4"}},{"id":960240,"issuer":{"id":4364,"kind":"organization","name":"NEKTAR THERAPEUTICS","symbol":"NKTR"},"owners":[{"id":21390,"kind":"person","name":"ROBIN HOWARD W","position":1,"cik":"0001206869","reported_name":"ROBIN HOWARD W","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & CEO"}}],"security":"Stock Option","published_at":"2025-12-23T23:01:13.000Z","date":"2025-12-22","kind":"grant","planned":false,"acquired":true,"shares":86667,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"Stock options vest over four years from the date of grant, (December 22, 2025) in substantially equal monthly installments based on continued service."}],"balance_after":86667,"derivative":{"exercise_price":43.48,"expiration_date":"2033-12-21","underlying":"Common Stock","underlying_shares":86667},"source":{"system":"sec-edgar","filing":"0001193125-25-331187","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/906709/000119312525331187/ownership.xml","form_type":"4"}},{"id":960239,"issuer":{"id":4364,"kind":"organization","name":"NEKTAR THERAPEUTICS","symbol":"NKTR"},"owners":[{"id":21390,"kind":"person","name":"ROBIN HOWARD W","position":1,"cik":"0001206869","reported_name":"ROBIN HOWARD W","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & CEO"}}],"security":"Common Stock","published_at":"2025-12-23T23:01:13.000Z","date":"2025-12-22","kind":"grant","planned":false,"acquired":true,"shares":21667,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"Common stock was acquired pursuant to a grant of restricted stock units (\"RSU\"). 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The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide full information regarding the number of shares and the prices at which the transactions were effected upon the request to the SEC staff, the Issuer, or a security holder of the Issuer."}],"balance_after":54245,"source":{"system":"sec-edgar","filing":"0001193125-25-297850","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/906709/000119312525297850/ownership.xml","form_type":"4"}},{"id":989280,"issuer":{"id":4364,"kind":"organization","name":"NEKTAR THERAPEUTICS","symbol":"NKTR"},"owners":[{"id":21390,"kind":"person","name":"ROBIN HOWARD W","position":1,"cik":"0001206869","reported_name":"ROBIN HOWARD W","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & CEO"}}],"security":"Common Stock","published_at":"2025-11-26T01:28:44.000Z","date":"2025-11-21","kind":"grant","planned":false,"acquired":true,"shares":7110,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"Common stock was acquired pursuant to a grant of restricted stock units (\"RSU\"). Each RSU awarded represents a contingent right to receive, upon vesting of the unit, one share of Common Stock of the Issuer. These RSUs were granted on December 18, 2020 under the Issuer's Amended and Restated 2017 Performance Incentive Plan (the \"2017 Plan\") and at the time of their grant were subject to both performance-based and time-based vesting requirements. 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The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide full information regarding the number of shares and the prices at which the transactions were effected upon the request to the SEC staff, the Issuer, or a security holder of the Issuer."}],"balance_after":49342,"source":{"system":"sec-edgar","filing":"0000950170-25-114365","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/906709/000095017025114365/ownership.xml","form_type":"4"}},{"id":1043346,"issuer":{"id":4364,"kind":"organization","name":"NEKTAR THERAPEUTICS","symbol":"NKTR"},"owners":[{"id":21390,"kind":"person","name":"ROBIN HOWARD W","position":1,"cik":"0001206869","reported_name":"ROBIN HOWARD W","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & CEO"}}],"security":"Common Stock","published_at":"2025-09-12T01:01:44.000Z","date":"2025-09-09","kind":"sale","planned":true,"acquired":false,"shares":2156,"price":47.49,"value":102388.44,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"This transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the reporting person."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"This transaction was executed in multiple trades at prices ranging from $47.02 to $47.85. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide full information regarding the number of shares and the prices at which the transactions were effected upon the request to the SEC staff, the Issuer, or a security holder of the Issuer."}],"balance_after":50552,"source":{"system":"sec-edgar","filing":"0000950170-25-114365","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/906709/000095017025114365/ownership.xml","form_type":"4"}},{"id":1043345,"issuer":{"id":4364,"kind":"organization","name":"NEKTAR THERAPEUTICS","symbol":"NKTR"},"owners":[{"id":21390,"kind":"person","name":"ROBIN HOWARD W","position":1,"cik":"0001206869","reported_name":"ROBIN HOWARD W","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & CEO"}}],"security":"Common Stock","published_at":"2025-09-12T01:01:44.000Z","date":"2025-09-09","kind":"sale","planned":true,"acquired":false,"shares":1200,"price":46.41,"value":55692.0,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"This transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the reporting person."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"This transaction was executed in multiple trades at prices ranging from $46.05 to $46.87. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide full information regarding the number of shares and the prices at which the transactions were effected upon the request to the SEC staff, the Issuer, or a security holder of the Issuer."}],"balance_after":52708,"source":{"system":"sec-edgar","filing":"0000950170-25-114365","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/906709/000095017025114365/ownership.xml","form_type":"4"}},{"id":1043344,"issuer":{"id":4364,"kind":"organization","name":"NEKTAR THERAPEUTICS","symbol":"NKTR"},"owners":[{"id":21390,"kind":"person","name":"ROBIN HOWARD W","position":1,"cik":"0001206869","reported_name":"ROBIN HOWARD W","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & CEO"}}],"security":"Common Stock","published_at":"2025-09-12T01:01:44.000Z","date":"2025-09-09","kind":"sale","planned":true,"acquired":false,"shares":2100,"price":45.16,"value":94836.0,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"This transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the reporting person."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"This transaction was executed in multiple trades at prices ranging from $45.00 to $45.41 The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide full information regarding the number of shares and the prices at which the transactions were effected upon the request to the SEC staff, the Issuer, or a security holder of the Issuer."}],"balance_after":53908,"source":{"system":"sec-edgar","filing":"0000950170-25-114365","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/906709/000095017025114365/ownership.xml","form_type":"4"}},{"id":1046360,"issuer":{"id":4364,"kind":"organization","name":"NEKTAR THERAPEUTICS","symbol":"NKTR"},"owners":[{"id":21390,"kind":"person","name":"ROBIN HOWARD W","position":1,"cik":"0001206869","reported_name":"ROBIN HOWARD W","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & CEO"}}],"security":"Common Stock","published_at":"2025-09-09T00:31:33.000Z","date":"2025-09-05","kind":"sale","planned":true,"acquired":false,"shares":1136,"price":39.89,"value":45315.04,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"This transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the reporting person."},{"field":"price","element":"transactionPricePerShare","label":"F8","text":"This transaction was executed in multiple trades at prices ranging from $39.50 to $40.32. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide full information regarding the number of shares and the prices at which the transactions were effected upon the request to the SEC staff, the Issuer, or a security holder of the Issuer."}],"balance_after":56008,"source":{"system":"sec-edgar","filing":"0000950170-25-113691","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/906709/000095017025113691/ownership.xml","form_type":"4"}},{"id":1046359,"issuer":{"id":4364,"kind":"organization","name":"NEKTAR THERAPEUTICS","symbol":"NKTR"},"owners":[{"id":21390,"kind":"person","name":"ROBIN HOWARD W","position":1,"cik":"0001206869","reported_name":"ROBIN HOWARD W","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & CEO"}}],"security":"Common Stock","published_at":"2025-09-09T00:31:33.000Z","date":"2025-09-05","kind":"sale","planned":true,"acquired":false,"shares":2226,"price":38.82,"value":86413.32,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"This transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the reporting person."},{"field":"price","element":"transactionPricePerShare","label":"F7","text":"This transaction was executed in multiple trades at prices ranging from $38.50 to $39.37. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide full information regarding the number of shares and the prices at which the transactions were effected upon the request to the SEC staff, the Issuer, or a security holder of the Issuer."}],"balance_after":57144,"source":{"system":"sec-edgar","filing":"0000950170-25-113691","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/906709/000095017025113691/ownership.xml","form_type":"4"}},{"id":1046358,"issuer":{"id":4364,"kind":"organization","name":"NEKTAR THERAPEUTICS","symbol":"NKTR"},"owners":[{"id":21390,"kind":"person","name":"ROBIN HOWARD W","position":1,"cik":"0001206869","reported_name":"ROBIN HOWARD W","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & CEO"}}],"security":"Common Stock","published_at":"2025-09-09T00:31:33.000Z","date":"2025-09-05","kind":"sale","planned":true,"acquired":false,"shares":3304,"price":37.87,"value":125122.48,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"This transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the reporting person."},{"field":"price","element":"transactionPricePerShare","label":"F6","text":"This transaction was executed in multiple trades at prices ranging from $37.50 to $38.26. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide full information regarding the number of shares and the prices at which the transactions were effected upon the request to the SEC staff, the Issuer, or a security holder of the Issuer."}],"balance_after":59370,"source":{"system":"sec-edgar","filing":"0000950170-25-113691","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/906709/000095017025113691/ownership.xml","form_type":"4"}},{"id":1046357,"issuer":{"id":4364,"kind":"organization","name":"NEKTAR THERAPEUTICS","symbol":"NKTR"},"owners":[{"id":21390,"kind":"person","name":"ROBIN HOWARD W","position":1,"cik":"0001206869","reported_name":"ROBIN HOWARD W","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & CEO"}}],"security":"Common Stock","published_at":"2025-09-09T00:31:33.000Z","date":"2025-09-04","kind":"sale","planned":true,"acquired":false,"shares":1134,"price":35.8,"value":40597.2,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"This transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the reporting person."},{"field":"price","element":"transactionPricePerShare","label":"F5","text":"This transaction was executed in multiple trades at prices ranging from $35.35 to $36.11. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide full information regarding the number of shares and the prices at which the transactions were effected upon the request to the SEC staff, the Issuer, or a security holder of the Issuer."}],"balance_after":62674,"source":{"system":"sec-edgar","filing":"0000950170-25-113691","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/906709/000095017025113691/ownership.xml","form_type":"4"}},{"id":1046356,"issuer":{"id":4364,"kind":"organization","name":"NEKTAR THERAPEUTICS","symbol":"NKTR"},"owners":[{"id":21390,"kind":"person","name":"ROBIN HOWARD W","position":1,"cik":"0001206869","reported_name":"ROBIN HOWARD W","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & CEO"}}],"security":"Common Stock","published_at":"2025-09-09T00:31:33.000Z","date":"2025-09-04","kind":"sale","planned":true,"acquired":false,"shares":613,"price":34.4,"value":21087.2,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"This transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the reporting person."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"This transaction was executed in multiple trades at prices ranging from $34.05 to $34.99. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide full information regarding the number of shares and the prices at which the transactions were effected upon the request to the SEC staff, the Issuer, or a security holder of the Issuer."}],"balance_after":63808,"source":{"system":"sec-edgar","filing":"0000950170-25-113691","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/906709/000095017025113691/ownership.xml","form_type":"4"}},{"id":1046355,"issuer":{"id":4364,"kind":"organization","name":"NEKTAR THERAPEUTICS","symbol":"NKTR"},"owners":[{"id":21390,"kind":"person","name":"ROBIN HOWARD W","position":1,"cik":"0001206869","reported_name":"ROBIN HOWARD W","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & CEO"}}],"security":"Common Stock","published_at":"2025-09-09T00:31:33.000Z","date":"2025-09-04","kind":"sale","planned":true,"acquired":false,"shares":1496,"price":33.54,"value":50175.84,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"This transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the reporting person."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"This transaction was executed in multiple trades at prices ranging from $33.02 to $33.99. The price reported above reflects the weighted average sale price. 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The reporting person hereby undertakes to provide full information regarding the number of shares and the prices at which the transactions were effected upon the request to the SEC staff, the Issuer, or a security holder of the Issuer."}],"balance_after":65917,"source":{"system":"sec-edgar","filing":"0000950170-25-113691","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/906709/000095017025113691/ownership.xml","form_type":"4"}},{"id":1048694,"issuer":{"id":4364,"kind":"organization","name":"NEKTAR THERAPEUTICS","symbol":"NKTR"},"owners":[{"id":21390,"kind":"person","name":"ROBIN HOWARD W","position":1,"cik":"0001206869","reported_name":"ROBIN HOWARD W","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & CEO"}}],"security":"Common Stock","published_at":"2025-09-05T01:01:15.000Z","date":"2025-09-02","kind":"sale","planned":true,"acquired":false,"shares":1500,"price":30.16,"value":45240.0,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"This transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the reporting person."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"This transaction was executed in multiple trades at prices ranging from $30.00 to $30.30 The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide full information regarding the number of shares and the prices at which the transactions were effected upon the request to the SEC staff, the Issuer, or a security holder of the Issuer."}],"balance_after":67840,"source":{"system":"sec-edgar","filing":"0000950170-25-113129","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/906709/000095017025113129/ownership.xml","form_type":"4"}},{"id":1059647,"issuer":{"id":4364,"kind":"organization","name":"NEKTAR THERAPEUTICS","symbol":"NKTR"},"owners":[{"id":21390,"kind":"person","name":"ROBIN HOWARD W","position":1,"cik":"0001206869","reported_name":"ROBIN HOWARD W","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & CEO"}}],"security":"Stock Option","published_at":"2025-08-22T01:03:49.000Z","date":"2025-08-19","kind":"grant","planned":false,"acquired":true,"shares":86666,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F4","text":"These stock options were granted on December 13, 2023 under the 2017 Plan and at the time of their grant were subject to both performance-based and time-based vesting requirements. 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The reporting person hereby undertakes to provide full information regarding the number of shares and the prices at which the transactions were effected upon the request to the SEC staff, the Issuer, or a security holder of the Issuer."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"On June 8, 2025, the Issuer effected a one-for-fifteen reverse stock split of its common stock (the \"Reverse Stock Split\"). 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The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide full information regarding the number of shares and the prices at which the transactions were effected upon the request to the SEC staff, the Issuer, or a security holder of the Issuer."}],"balance_after":1063693,"source":{"system":"sec-edgar","filing":"0000950170-25-075976","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/906709/000095017025075976/ownership.xml","form_type":"4"}},{"id":1254148,"issuer":{"id":4364,"kind":"organization","name":"NEKTAR THERAPEUTICS","symbol":"NKTR"},"owners":[{"id":21390,"kind":"person","name":"ROBIN HOWARD W","position":1,"cik":"0001206869","reported_name":"ROBIN HOWARD W","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & CEO"}}],"security":"Common Stock","published_at":"2025-02-21T23:04:25.000Z","date":"2025-02-19","kind":"sale","planned":false,"acquired":false,"shares":23774,"price":1.01,"value":24011.74,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents the number of shares sold by the reporting person to cover required tax withholding obligations in connection with the vesting of the RSUs held by the reporting person and does not represent a discretionary trade by the reporting person."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"This transaction was executed in multiple trades at prices ranging from $1.00 to $1.04. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide full information regarding the number of shares and the prices at which the transactions were effected upon the request to the SEC staff, the Issuer, or a security holder of the Issuer."}],"balance_after":1086901,"source":{"system":"sec-edgar","filing":"0000950170-25-025035","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/906709/000095017025025035/ownership.xml","form_type":"4"}},{"id":1325818,"issuer":{"id":4364,"kind":"organization","name":"NEKTAR THERAPEUTICS","symbol":"NKTR"},"owners":[{"id":21390,"kind":"person","name":"ROBIN HOWARD W","position":1,"cik":"0001206869","reported_name":"ROBIN HOWARD W","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & CEO"}}],"security":"Common Stock","published_at":"2024-12-20T02:08:56.000Z","date":"2024-12-18","kind":"sale","planned":false,"acquired":false,"shares":85035,"price":0.99,"value":84184.65,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents the number of shares sold by the reporting person to cover required tax withholding obligations in connection with the vesting of the RSUs held by the reporting person and does not represent a discretionary trade by the reporting person."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"This transaction was executed in multiple trades at prices ranging from $.93 to $1.04. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide full information regarding the number of shares and the prices at which the transactions were effected upon the request to the SEC staff, the Issuer, or a security holder of the Issuer."}],"balance_after":1110675,"source":{"system":"sec-edgar","filing":"0000950170-24-138693","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/906709/000095017024138693/ownership.xml","form_type":"4"}},{"id":1325817,"issuer":{"id":4364,"kind":"organization","name":"NEKTAR THERAPEUTICS","symbol":"NKTR"},"owners":[{"id":21390,"kind":"person","name":"ROBIN HOWARD W","position":1,"cik":"0001206869","reported_name":"ROBIN HOWARD W","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & CEO"}}],"security":"Common Stock","published_at":"2024-12-20T02:08:56.000Z","date":"2024-12-17","kind":"sale","planned":false,"acquired":false,"shares":46995,"price":1.01,"value":47464.95,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents the number of shares sold by the reporting person to cover required tax withholding obligations in connection with the vesting of the RSUs held by the reporting person and does not represent a discretionary trade by the reporting person."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"This transaction was executed in multiple trades at prices ranging from $1.00 to $1.03. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide full information regarding the number of shares and the prices at which the transactions were effected upon the request to the SEC staff, the Issuer, or a security holder of the Issuer."}],"balance_after":1195710,"source":{"system":"sec-edgar","filing":"0000950170-24-138693","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/906709/000095017024138693/ownership.xml","form_type":"4"}},{"id":1329794,"issuer":{"id":4364,"kind":"organization","name":"NEKTAR THERAPEUTICS","symbol":"NKTR"},"owners":[{"id":21390,"kind":"person","name":"ROBIN HOWARD W","position":1,"cik":"0001206869","reported_name":"ROBIN HOWARD W","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & CEO"}}],"security":"Stock Option","published_at":"2024-12-18T01:54:17.000Z","date":"2024-12-13","kind":"grant","planned":false,"acquired":true,"shares":1300000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"Stock options vest over four years from the date of grant, (December 13, 2024) in equal monthly installments based on continued service."}],"balance_after":1300000,"derivative":{"exercise_price":1.01,"expiration_date":"2032-12-12","underlying":"Common Stock","underlying_shares":1300000},"source":{"system":"sec-edgar","filing":"0000950170-24-137543","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/906709/000095017024137543/ownership.xml","form_type":"4"}},{"id":1329793,"issuer":{"id":4364,"kind":"organization","name":"NEKTAR THERAPEUTICS","symbol":"NKTR"},"owners":[{"id":21390,"kind":"person","name":"ROBIN HOWARD W","position":1,"cik":"0001206869","reported_name":"ROBIN HOWARD W","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & CEO"}}],"security":"Stock Option","published_at":"2024-12-18T01:54:17.000Z","date":"2024-12-13","kind":"grant","planned":false,"acquired":true,"shares":821250,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F3","text":"These stock options were granted on August 15, 2022 under the 2017 Plan and at the time of their grant were subject to both performance-based and time-based vesting requirements. 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The price reported above reflects the weighted average sale price. 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The price reported above reflects the weighted average sale price. 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The price reported above reflects the weighted average sale price. 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The price reported above reflects the weighted average sale price. 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The price reported above reflects the weighted average sale price. 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The price reported above reflects the weighted average sale price. 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The price reported above reflects the weighted average sale price.  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