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Amounts are shown here based on actual performance."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F6","text":"Pursuant to the Merger Agreement, at the Effective Time, each outstanding performance-based restricted stock unit (each, a \"Company PSU\"), other than any Company Products PSU or any Company August 2023 PSU (each, as defined below), was cancelled and converted into the right to receive cash equal to the product of (i) the Merger Consideration, multiplied by (ii) the number of shares of Common Stock then subject to such Company PSU, based on the greater of the target and actual performance. Amounts are shown here based on actual performance."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F6","text":"Pursuant to the Merger Agreement, at the Effective Time, each outstanding performance-based restricted stock unit (each, a \"Company PSU\"), other than any Company Products PSU or any Company August 2023 PSU (each, as defined below), was cancelled and converted into the right to receive cash equal to the product of (i) the Merger Consideration, multiplied by (ii) the number of shares of Common Stock then subject to such Company PSU, based on the greater of the target and actual performance. Amounts are shown here based on actual performance."}],"balance_after":0,"derivative":{"underlying":"Common stock","underlying_shares":1639},"source":{"system":"sec-edgar","filing":"0000950170-23-070882","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":22,"url":"https://www.sec.gov/Archives/edgar/data/1060736/000095017023070882/ownership.xml","form_type":"4"}},{"id":1709957,"issuer":{"id":13956,"kind":"organization","name":"Seagen Inc.","symbol":"SGEN"},"owners":[{"id":31404,"kind":"person","name":"SIMPSON TODD E","position":1,"cik":"0001216477","reported_name":"SIMPSON TODD E","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Performance Stock Units","published_at":"2023-12-15T18:42:41.000Z","date":"2023-12-14","kind":"disposition_to_issuer","planned":false,"acquired":false,"shares":14251,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F6","text":"Pursuant to the Merger Agreement, at the Effective Time, each outstanding performance-based restricted stock unit (each, a \"Company PSU\"), other than any Company Products PSU or any Company August 2023 PSU (each, as defined below), was cancelled and converted into the right to receive cash equal to the product of (i) the Merger Consideration, multiplied by (ii) the number of shares of Common Stock then subject to such Company PSU, based on the greater of the target and actual performance. Amounts are shown here based on actual performance."},{"field":"kind","element":"transactionCoding","label":"F1","text":"Reflects the disposition of shares of common stock, par value $0.001 per share (\"Common Stock\"), of Seagen Inc. (\"Issuer\"), or of equity awards in respect of such Common Stock, as applicable, in connection with the consummation of the transactions contemplated by the Agreement and Plan of Merger, dated as of March 12, 2023 (the \"Merger Agreement\"), by and among the Issuer, Pfizer Inc. (\"Parent\") and Aris Merger Sub, Inc. (\"Merger Sub\"), a wholly owned subsidiary of Parent, pursuant to which, at 12:01 a.m. EST on December 14, 2023, the effective time of the Merger (the \"Effective Time\"), Merger Sub merged with and into the Issuer, with the Issuer surviving as a subsidiary of Parent (the \"Merger\")."},{"field":"price","element":"transactionPricePerShare","label":"F6","text":"Pursuant to the Merger Agreement, at the Effective Time, each outstanding performance-based restricted stock unit (each, a \"Company PSU\"), other than any Company Products PSU or any Company August 2023 PSU (each, as defined below), was cancelled and converted into the right to receive cash equal to the product of (i) the Merger Consideration, multiplied by (ii) the number of shares of Common Stock then subject to such Company PSU, based on the greater of the target and actual performance. Amounts are shown here based on actual performance."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F6","text":"Pursuant to the Merger Agreement, at the Effective Time, each outstanding performance-based restricted stock unit (each, a \"Company PSU\"), other than any Company Products PSU or any Company August 2023 PSU (each, as defined below), was cancelled and converted into the right to receive cash equal to the product of (i) the Merger Consideration, multiplied by (ii) the number of shares of Common Stock then subject to such Company PSU, based on the greater of the target and actual performance. Amounts are shown here based on actual performance."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F6","text":"Pursuant to the Merger Agreement, at the Effective Time, each outstanding performance-based restricted stock unit (each, a \"Company PSU\"), other than any Company Products PSU or any Company August 2023 PSU (each, as defined below), was cancelled and converted into the right to receive cash equal to the product of (i) the Merger Consideration, multiplied by (ii) the number of shares of Common Stock then subject to such Company PSU, based on the greater of the target and actual performance. Amounts are shown here based on actual performance."}],"balance_after":0,"derivative":{"underlying":"Common stock","underlying_shares":14251},"source":{"system":"sec-edgar","filing":"0000950170-23-070882","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":21,"url":"https://www.sec.gov/Archives/edgar/data/1060736/000095017023070882/ownership.xml","form_type":"4"}},{"id":1709956,"issuer":{"id":13956,"kind":"organization","name":"Seagen Inc.","symbol":"SGEN"},"owners":[{"id":31404,"kind":"person","name":"SIMPSON TODD E","position":1,"cik":"0001216477","reported_name":"SIMPSON TODD E","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Performance Stock Units","published_at":"2023-12-15T18:42:41.000Z","date":"2023-12-14","kind":"disposition_to_issuer","planned":false,"acquired":false,"shares":11400,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F6","text":"Pursuant to the Merger Agreement, at the Effective Time, each outstanding performance-based restricted stock unit (each, a \"Company PSU\"), other than any Company Products PSU or any Company August 2023 PSU (each, as defined below), was cancelled and converted into the right to receive cash equal to the product of (i) the Merger Consideration, multiplied by (ii) the number of shares of Common Stock then subject to such Company PSU, based on the greater of the target and actual performance. Amounts are shown here based on actual performance."},{"field":"kind","element":"transactionCoding","label":"F1","text":"Reflects the disposition of shares of common stock, par value $0.001 per share (\"Common Stock\"), of Seagen Inc. (\"Issuer\"), or of equity awards in respect of such Common Stock, as applicable, in connection with the consummation of the transactions contemplated by the Agreement and Plan of Merger, dated as of March 12, 2023 (the \"Merger Agreement\"), by and among the Issuer, Pfizer Inc. (\"Parent\") and Aris Merger Sub, Inc. (\"Merger Sub\"), a wholly owned subsidiary of Parent, pursuant to which, at 12:01 a.m. EST on December 14, 2023, the effective time of the Merger (the \"Effective Time\"), Merger Sub merged with and into the Issuer, with the Issuer surviving as a subsidiary of Parent (the \"Merger\")."},{"field":"price","element":"transactionPricePerShare","label":"F6","text":"Pursuant to the Merger Agreement, at the Effective Time, each outstanding performance-based restricted stock unit (each, a \"Company PSU\"), other than any Company Products PSU or any Company August 2023 PSU (each, as defined below), was cancelled and converted into the right to receive cash equal to the product of (i) the Merger Consideration, multiplied by (ii) the number of shares of Common Stock then subject to such Company PSU, based on the greater of the target and actual performance. Amounts are shown here based on actual performance."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F6","text":"Pursuant to the Merger Agreement, at the Effective Time, each outstanding performance-based restricted stock unit (each, a \"Company PSU\"), other than any Company Products PSU or any Company August 2023 PSU (each, as defined below), was cancelled and converted into the right to receive cash equal to the product of (i) the Merger Consideration, multiplied by (ii) the number of shares of Common Stock then subject to such Company PSU, based on the greater of the target and actual performance. Amounts are shown here based on actual performance."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F6","text":"Pursuant to the Merger Agreement, at the Effective Time, each outstanding performance-based restricted stock unit (each, a \"Company PSU\"), other than any Company Products PSU or any Company August 2023 PSU (each, as defined below), was cancelled and converted into the right to receive cash equal to the product of (i) the Merger Consideration, multiplied by (ii) the number of shares of Common Stock then subject to such Company PSU, based on the greater of the target and actual performance. Amounts are shown here based on actual performance."}],"balance_after":0,"derivative":{"underlying":"Common stock","underlying_shares":11400},"source":{"system":"sec-edgar","filing":"0000950170-23-070882","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":20,"url":"https://www.sec.gov/Archives/edgar/data/1060736/000095017023070882/ownership.xml","form_type":"4"}},{"id":1709955,"issuer":{"id":13956,"kind":"organization","name":"Seagen Inc.","symbol":"SGEN"},"owners":[{"id":31404,"kind":"person","name":"SIMPSON TODD E","position":1,"cik":"0001216477","reported_name":"SIMPSON TODD E","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Performance Stock Units","published_at":"2023-12-15T18:42:41.000Z","date":"2023-12-14","kind":"disposition_to_issuer","planned":false,"acquired":false,"shares":6666,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F6","text":"Pursuant to the Merger Agreement, at the Effective Time, each outstanding performance-based restricted stock unit (each, a \"Company PSU\"), other than any Company Products PSU or any Company August 2023 PSU (each, as defined below), was cancelled and converted into the right to receive cash equal to the product of (i) the Merger Consideration, multiplied by (ii) the number of shares of Common Stock then subject to such Company PSU, based on the greater of the target and actual performance. Amounts are shown here based on actual performance."},{"field":"kind","element":"transactionCoding","label":"F1","text":"Reflects the disposition of shares of common stock, par value $0.001 per share (\"Common Stock\"), of Seagen Inc. (\"Issuer\"), or of equity awards in respect of such Common Stock, as applicable, in connection with the consummation of the transactions contemplated by the Agreement and Plan of Merger, dated as of March 12, 2023 (the \"Merger Agreement\"), by and among the Issuer, Pfizer Inc. (\"Parent\") and Aris Merger Sub, Inc. (\"Merger Sub\"), a wholly owned subsidiary of Parent, pursuant to which, at 12:01 a.m. EST on December 14, 2023, the effective time of the Merger (the \"Effective Time\"), Merger Sub merged with and into the Issuer, with the Issuer surviving as a subsidiary of Parent (the \"Merger\")."},{"field":"price","element":"transactionPricePerShare","label":"F6","text":"Pursuant to the Merger Agreement, at the Effective Time, each outstanding performance-based restricted stock unit (each, a \"Company PSU\"), other than any Company Products PSU or any Company August 2023 PSU (each, as defined below), was cancelled and converted into the right to receive cash equal to the product of (i) the Merger Consideration, multiplied by (ii) the number of shares of Common Stock then subject to such Company PSU, based on the greater of the target and actual performance. Amounts are shown here based on actual performance."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F6","text":"Pursuant to the Merger Agreement, at the Effective Time, each outstanding performance-based restricted stock unit (each, a \"Company PSU\"), other than any Company Products PSU or any Company August 2023 PSU (each, as defined below), was cancelled and converted into the right to receive cash equal to the product of (i) the Merger Consideration, multiplied by (ii) the number of shares of Common Stock then subject to such Company PSU, based on the greater of the target and actual performance. Amounts are shown here based on actual performance."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F6","text":"Pursuant to the Merger Agreement, at the Effective Time, each outstanding performance-based restricted stock unit (each, a \"Company PSU\"), other than any Company Products PSU or any Company August 2023 PSU (each, as defined below), was cancelled and converted into the right to receive cash equal to the product of (i) the Merger Consideration, multiplied by (ii) the number of shares of Common Stock then subject to such Company PSU, based on the greater of the target and actual performance. Amounts are shown here based on actual performance."}],"balance_after":0,"derivative":{"underlying":"Common stock","underlying_shares":6666},"source":{"system":"sec-edgar","filing":"0000950170-23-070882","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":19,"url":"https://www.sec.gov/Archives/edgar/data/1060736/000095017023070882/ownership.xml","form_type":"4"}},{"id":1709954,"issuer":{"id":13956,"kind":"organization","name":"Seagen Inc.","symbol":"SGEN"},"owners":[{"id":31404,"kind":"person","name":"SIMPSON TODD E","position":1,"cik":"0001216477","reported_name":"SIMPSON TODD E","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Performance Stock Units","published_at":"2023-12-15T18:42:41.000Z","date":"2023-12-14","kind":"disposition_to_issuer","planned":false,"acquired":false,"shares":656,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F6","text":"Pursuant to the Merger Agreement, at the Effective Time, each outstanding performance-based restricted stock unit (each, a \"Company PSU\"), other than any Company Products PSU or any Company August 2023 PSU (each, as defined below), was cancelled and converted into the right to receive cash equal to the product of (i) the Merger Consideration, multiplied by (ii) the number of shares of Common Stock then subject to such Company PSU, based on the greater of the target and actual performance. Amounts are shown here based on actual performance."},{"field":"kind","element":"transactionCoding","label":"F1","text":"Reflects the disposition of shares of common stock, par value $0.001 per share (\"Common Stock\"), of Seagen Inc. (\"Issuer\"), or of equity awards in respect of such Common Stock, as applicable, in connection with the consummation of the transactions contemplated by the Agreement and Plan of Merger, dated as of March 12, 2023 (the \"Merger Agreement\"), by and among the Issuer, Pfizer Inc. (\"Parent\") and Aris Merger Sub, Inc. (\"Merger Sub\"), a wholly owned subsidiary of Parent, pursuant to which, at 12:01 a.m. EST on December 14, 2023, the effective time of the Merger (the \"Effective Time\"), Merger Sub merged with and into the Issuer, with the Issuer surviving as a subsidiary of Parent (the \"Merger\")."},{"field":"price","element":"transactionPricePerShare","label":"F6","text":"Pursuant to the Merger Agreement, at the Effective Time, each outstanding performance-based restricted stock unit (each, a \"Company PSU\"), other than any Company Products PSU or any Company August 2023 PSU (each, as defined below), was cancelled and converted into the right to receive cash equal to the product of (i) the Merger Consideration, multiplied by (ii) the number of shares of Common Stock then subject to such Company PSU, based on the greater of the target and actual performance. Amounts are shown here based on actual performance."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F6","text":"Pursuant to the Merger Agreement, at the Effective Time, each outstanding performance-based restricted stock unit (each, a \"Company PSU\"), other than any Company Products PSU or any Company August 2023 PSU (each, as defined below), was cancelled and converted into the right to receive cash equal to the product of (i) the Merger Consideration, multiplied by (ii) the number of shares of Common Stock then subject to such Company PSU, based on the greater of the target and actual performance. Amounts are shown here based on actual performance."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F6","text":"Pursuant to the Merger Agreement, at the Effective Time, each outstanding performance-based restricted stock unit (each, a \"Company PSU\"), other than any Company Products PSU or any Company August 2023 PSU (each, as defined below), was cancelled and converted into the right to receive cash equal to the product of (i) the Merger Consideration, multiplied by (ii) the number of shares of Common Stock then subject to such Company PSU, based on the greater of the target and actual performance. Amounts are shown here based on actual performance."}],"balance_after":0,"derivative":{"underlying":"Common stock","underlying_shares":656},"source":{"system":"sec-edgar","filing":"0000950170-23-070882","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":18,"url":"https://www.sec.gov/Archives/edgar/data/1060736/000095017023070882/ownership.xml","form_type":"4"}},{"id":1709953,"issuer":{"id":13956,"kind":"organization","name":"Seagen Inc.","symbol":"SGEN"},"owners":[{"id":31404,"kind":"person","name":"SIMPSON TODD E","position":1,"cik":"0001216477","reported_name":"SIMPSON TODD E","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Performance Stock Units","published_at":"2023-12-15T18:42:41.000Z","date":"2023-12-14","kind":"disposition_to_issuer","planned":false,"acquired":false,"shares":4120,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F6","text":"Pursuant to the Merger Agreement, at the Effective Time, each outstanding performance-based restricted stock unit (each, a \"Company PSU\"), other than any Company Products PSU or any Company August 2023 PSU (each, as defined below), was cancelled and converted into the right to receive cash equal to the product of (i) the Merger Consideration, multiplied by (ii) the number of shares of Common Stock then subject to such Company PSU, based on the greater of the target and actual performance. Amounts are shown here based on actual performance."},{"field":"kind","element":"transactionCoding","label":"F1","text":"Reflects the disposition of shares of common stock, par value $0.001 per share (\"Common Stock\"), of Seagen Inc. (\"Issuer\"), or of equity awards in respect of such Common Stock, as applicable, in connection with the consummation of the transactions contemplated by the Agreement and Plan of Merger, dated as of March 12, 2023 (the \"Merger Agreement\"), by and among the Issuer, Pfizer Inc. (\"Parent\") and Aris Merger Sub, Inc. (\"Merger Sub\"), a wholly owned subsidiary of Parent, pursuant to which, at 12:01 a.m. EST on December 14, 2023, the effective time of the Merger (the \"Effective Time\"), Merger Sub merged with and into the Issuer, with the Issuer surviving as a subsidiary of Parent (the \"Merger\")."},{"field":"price","element":"transactionPricePerShare","label":"F6","text":"Pursuant to the Merger Agreement, at the Effective Time, each outstanding performance-based restricted stock unit (each, a \"Company PSU\"), other than any Company Products PSU or any Company August 2023 PSU (each, as defined below), was cancelled and converted into the right to receive cash equal to the product of (i) the Merger Consideration, multiplied by (ii) the number of shares of Common Stock then subject to such Company PSU, based on the greater of the target and actual performance. Amounts are shown here based on actual performance."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F6","text":"Pursuant to the Merger Agreement, at the Effective Time, each outstanding performance-based restricted stock unit (each, a \"Company PSU\"), other than any Company Products PSU or any Company August 2023 PSU (each, as defined below), was cancelled and converted into the right to receive cash equal to the product of (i) the Merger Consideration, multiplied by (ii) the number of shares of Common Stock then subject to such Company PSU, based on the greater of the target and actual performance. Amounts are shown here based on actual performance."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F6","text":"Pursuant to the Merger Agreement, at the Effective Time, each outstanding performance-based restricted stock unit (each, a \"Company PSU\"), other than any Company Products PSU or any Company August 2023 PSU (each, as defined below), was cancelled and converted into the right to receive cash equal to the product of (i) the Merger Consideration, multiplied by (ii) the number of shares of Common Stock then subject to such Company PSU, based on the greater of the target and actual performance. Amounts are shown here based on actual performance."}],"balance_after":0,"derivative":{"underlying":"Common stock","underlying_shares":4120},"source":{"system":"sec-edgar","filing":"0000950170-23-070882","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":17,"url":"https://www.sec.gov/Archives/edgar/data/1060736/000095017023070882/ownership.xml","form_type":"4"}},{"id":1709952,"issuer":{"id":13956,"kind":"organization","name":"Seagen Inc.","symbol":"SGEN"},"owners":[{"id":31404,"kind":"person","name":"SIMPSON TODD E","position":1,"cik":"0001216477","reported_name":"SIMPSON TODD E","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Performance Stock Units","published_at":"2023-12-15T18:42:41.000Z","date":"2023-12-14","kind":"disposition_to_issuer","planned":false,"acquired":false,"shares":3276,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F6","text":"Pursuant to the Merger Agreement, at the Effective Time, each outstanding performance-based restricted stock unit (each, a \"Company PSU\"), other than any Company Products PSU or any Company August 2023 PSU (each, as defined below), was cancelled and converted into the right to receive cash equal to the product of (i) the Merger Consideration, multiplied by (ii) the number of shares of Common Stock then subject to such Company PSU, based on the greater of the target and actual performance. Amounts are shown here based on actual performance."},{"field":"kind","element":"transactionCoding","label":"F1","text":"Reflects the disposition of shares of common stock, par value $0.001 per share (\"Common Stock\"), of Seagen Inc. (\"Issuer\"), or of equity awards in respect of such Common Stock, as applicable, in connection with the consummation of the transactions contemplated by the Agreement and Plan of Merger, dated as of March 12, 2023 (the \"Merger Agreement\"), by and among the Issuer, Pfizer Inc. (\"Parent\") and Aris Merger Sub, Inc. (\"Merger Sub\"), a wholly owned subsidiary of Parent, pursuant to which, at 12:01 a.m. EST on December 14, 2023, the effective time of the Merger (the \"Effective Time\"), Merger Sub merged with and into the Issuer, with the Issuer surviving as a subsidiary of Parent (the \"Merger\")."},{"field":"price","element":"transactionPricePerShare","label":"F6","text":"Pursuant to the Merger Agreement, at the Effective Time, each outstanding performance-based restricted stock unit (each, a \"Company PSU\"), other than any Company Products PSU or any Company August 2023 PSU (each, as defined below), was cancelled and converted into the right to receive cash equal to the product of (i) the Merger Consideration, multiplied by (ii) the number of shares of Common Stock then subject to such Company PSU, based on the greater of the target and actual performance. Amounts are shown here based on actual performance."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F6","text":"Pursuant to the Merger Agreement, at the Effective Time, each outstanding performance-based restricted stock unit (each, a \"Company PSU\"), other than any Company Products PSU or any Company August 2023 PSU (each, as defined below), was cancelled and converted into the right to receive cash equal to the product of (i) the Merger Consideration, multiplied by (ii) the number of shares of Common Stock then subject to such Company PSU, based on the greater of the target and actual performance. Amounts are shown here based on actual performance."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F6","text":"Pursuant to the Merger Agreement, at the Effective Time, each outstanding performance-based restricted stock unit (each, a \"Company PSU\"), other than any Company Products PSU or any Company August 2023 PSU (each, as defined below), was cancelled and converted into the right to receive cash equal to the product of (i) the Merger Consideration, multiplied by (ii) the number of shares of Common Stock then subject to such Company PSU, based on the greater of the target and actual performance. Amounts are shown here based on actual performance."}],"balance_after":0,"derivative":{"underlying":"Common stock","underlying_shares":3276},"source":{"system":"sec-edgar","filing":"0000950170-23-070882","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":16,"url":"https://www.sec.gov/Archives/edgar/data/1060736/000095017023070882/ownership.xml","form_type":"4"}},{"id":1709951,"issuer":{"id":13956,"kind":"organization","name":"Seagen Inc.","symbol":"SGEN"},"owners":[{"id":31404,"kind":"person","name":"SIMPSON TODD E","position":1,"cik":"0001216477","reported_name":"SIMPSON TODD E","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Restricted Stock Units","published_at":"2023-12-15T18:42:41.000Z","date":"2023-12-14","kind":"disposition_to_issuer","planned":false,"acquired":false,"shares":14746,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F5","text":"Pursuant to the Merger Agreement, at the Effective Time, each outstanding Company RSU granted after March 12, 2023 that was unvested as of immediately prior to the Effective Time (each, a \"Post-Signing Company RSU\") was cancelled and converted into the right to receive a Parent cash-based award subject to service-based vesting requirements with respect to an amount in cash equal to the product of (i) the Merger Consideration, multiplied by (ii) the number of shares of Common Stock then subject to such Post-Signing Company RSU."},{"field":"kind","element":"transactionCoding","label":"F1","text":"Reflects the disposition of shares of common stock, par value $0.001 per share (\"Common Stock\"), of Seagen Inc. (\"Issuer\"), or of equity awards in respect of such Common Stock, as applicable, in connection with the consummation of the transactions contemplated by the Agreement and Plan of Merger, dated as of March 12, 2023 (the \"Merger Agreement\"), by and among the Issuer, Pfizer Inc. (\"Parent\") and Aris Merger Sub, Inc. (\"Merger Sub\"), a wholly owned subsidiary of Parent, pursuant to which, at 12:01 a.m. EST on December 14, 2023, the effective time of the Merger (the \"Effective Time\"), Merger Sub merged with and into the Issuer, with the Issuer surviving as a subsidiary of Parent (the \"Merger\")."},{"field":"price","element":"transactionPricePerShare","label":"F5","text":"Pursuant to the Merger Agreement, at the Effective Time, each outstanding Company RSU granted after March 12, 2023 that was unvested as of immediately prior to the Effective Time (each, a \"Post-Signing Company RSU\") was cancelled and converted into the right to receive a Parent cash-based award subject to service-based vesting requirements with respect to an amount in cash equal to the product of (i) the Merger Consideration, multiplied by (ii) the number of shares of Common Stock then subject to such Post-Signing Company RSU."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"Pursuant to the Merger Agreement, at the Effective Time, each outstanding Company RSU granted after March 12, 2023 that was unvested as of immediately prior to the Effective Time (each, a \"Post-Signing Company RSU\") was cancelled and converted into the right to receive a Parent cash-based award subject to service-based vesting requirements with respect to an amount in cash equal to the product of (i) the Merger Consideration, multiplied by (ii) the number of shares of Common Stock then subject to such Post-Signing Company RSU."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F5","text":"Pursuant to the Merger Agreement, at the Effective Time, each outstanding Company RSU granted after March 12, 2023 that was unvested as of immediately prior to the Effective Time (each, a \"Post-Signing Company RSU\") was cancelled and converted into the right to receive a Parent cash-based award subject to service-based vesting requirements with respect to an amount in cash equal to the product of (i) the Merger Consideration, multiplied by (ii) the number of shares of Common Stock then subject to such Post-Signing Company RSU."}],"balance_after":0,"derivative":{"underlying":"Common stock","underlying_shares":14746},"source":{"system":"sec-edgar","filing":"0000950170-23-070882","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":15,"url":"https://www.sec.gov/Archives/edgar/data/1060736/000095017023070882/ownership.xml","form_type":"4"}},{"id":1709950,"issuer":{"id":13956,"kind":"organization","name":"Seagen Inc.","symbol":"SGEN"},"owners":[{"id":31404,"kind":"person","name":"SIMPSON TODD E","position":1,"cik":"0001216477","reported_name":"SIMPSON TODD E","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Restricted Stock Units","published_at":"2023-12-15T18:42:41.000Z","date":"2023-12-14","kind":"disposition_to_issuer","planned":false,"acquired":false,"shares":1395,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F5","text":"Pursuant to the Merger Agreement, at the Effective Time, each outstanding Company RSU granted after March 12, 2023 that was unvested as of immediately prior to the Effective Time (each, a \"Post-Signing Company RSU\") was cancelled and converted into the right to receive a Parent cash-based award subject to service-based vesting requirements with respect to an amount in cash equal to the product of (i) the Merger Consideration, multiplied by (ii) the number of shares of Common Stock then subject to such Post-Signing Company RSU."},{"field":"kind","element":"transactionCoding","label":"F1","text":"Reflects the disposition of shares of common stock, par value $0.001 per share (\"Common Stock\"), of Seagen Inc. (\"Issuer\"), or of equity awards in respect of such Common Stock, as applicable, in connection with the consummation of the transactions contemplated by the Agreement and Plan of Merger, dated as of March 12, 2023 (the \"Merger Agreement\"), by and among the Issuer, Pfizer Inc. (\"Parent\") and Aris Merger Sub, Inc. (\"Merger Sub\"), a wholly owned subsidiary of Parent, pursuant to which, at 12:01 a.m. EST on December 14, 2023, the effective time of the Merger (the \"Effective Time\"), Merger Sub merged with and into the Issuer, with the Issuer surviving as a subsidiary of Parent (the \"Merger\")."},{"field":"price","element":"transactionPricePerShare","label":"F5","text":"Pursuant to the Merger Agreement, at the Effective Time, each outstanding Company RSU granted after March 12, 2023 that was unvested as of immediately prior to the Effective Time (each, a \"Post-Signing Company RSU\") was cancelled and converted into the right to receive a Parent cash-based award subject to service-based vesting requirements with respect to an amount in cash equal to the product of (i) the Merger Consideration, multiplied by (ii) the number of shares of Common Stock then subject to such Post-Signing Company RSU."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"Pursuant to the Merger Agreement, at the Effective Time, each outstanding Company RSU granted after March 12, 2023 that was unvested as of immediately prior to the Effective Time (each, a \"Post-Signing Company RSU\") was cancelled and converted into the right to receive a Parent cash-based award subject to service-based vesting requirements with respect to an amount in cash equal to the product of (i) the Merger Consideration, multiplied by (ii) the number of shares of Common Stock then subject to such Post-Signing Company RSU."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F5","text":"Pursuant to the Merger Agreement, at the Effective Time, each outstanding Company RSU granted after March 12, 2023 that was unvested as of immediately prior to the Effective Time (each, a \"Post-Signing Company RSU\") was cancelled and converted into the right to receive a Parent cash-based award subject to service-based vesting requirements with respect to an amount in cash equal to the product of (i) the Merger Consideration, multiplied by (ii) the number of shares of Common Stock then subject to such Post-Signing Company RSU."}],"balance_after":0,"derivative":{"underlying":"Common stock","underlying_shares":1395},"source":{"system":"sec-edgar","filing":"0000950170-23-070882","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":14,"url":"https://www.sec.gov/Archives/edgar/data/1060736/000095017023070882/ownership.xml","form_type":"4"}},{"id":1709949,"issuer":{"id":13956,"kind":"organization","name":"Seagen Inc.","symbol":"SGEN"},"owners":[{"id":31404,"kind":"person","name":"SIMPSON TODD E","position":1,"cik":"0001216477","reported_name":"SIMPSON TODD E","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Restricted Stock Units","published_at":"2023-12-15T18:42:41.000Z","date":"2023-12-14","kind":"disposition_to_issuer","planned":false,"acquired":false,"shares":11585,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F4","text":"Pursuant to the Merger Agreement, at the Effective Time, each outstanding restricted stock unit (each, a \"Company RSU\"), other than any Post-Signing Company RSU (as defined below), was cancelled and converted into the right to receive an amount in cash equal to the product of (i) the Merger Consideration, multiplied by (ii) the number of shares of Common Stock then subject to such Company RSU."},{"field":"kind","element":"transactionCoding","label":"F1","text":"Reflects the disposition of shares of common stock, par value $0.001 per share (\"Common Stock\"), of Seagen Inc. (\"Issuer\"), or of equity awards in respect of such Common Stock, as applicable, in connection with the consummation of the transactions contemplated by the Agreement and Plan of Merger, dated as of March 12, 2023 (the \"Merger Agreement\"), by and among the Issuer, Pfizer Inc. (\"Parent\") and Aris Merger Sub, Inc. (\"Merger Sub\"), a wholly owned subsidiary of Parent, pursuant to which, at 12:01 a.m. EST on December 14, 2023, the effective time of the Merger (the \"Effective Time\"), Merger Sub merged with and into the Issuer, with the Issuer surviving as a subsidiary of Parent (the \"Merger\")."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"Pursuant to the Merger Agreement, at the Effective Time, each outstanding restricted stock unit (each, a \"Company RSU\"), other than any Post-Signing Company RSU (as defined below), was cancelled and converted into the right to receive an amount in cash equal to the product of (i) the Merger Consideration, multiplied by (ii) the number of shares of Common Stock then subject to such Company RSU."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"Pursuant to the Merger Agreement, at the Effective Time, each outstanding restricted stock unit (each, a \"Company RSU\"), other than any Post-Signing Company RSU (as defined below), was cancelled and converted into the right to receive an amount in cash equal to the product of (i) the Merger Consideration, multiplied by (ii) the number of shares of Common Stock then subject to such Company RSU."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"Pursuant to the Merger Agreement, at the Effective Time, each outstanding restricted stock unit (each, a \"Company RSU\"), other than any Post-Signing Company RSU (as defined below), was cancelled and converted into the right to receive an amount in cash equal to the product of (i) the Merger Consideration, multiplied by (ii) the number of shares of Common Stock then subject to such Company RSU."}],"balance_after":0,"derivative":{"underlying":"Common stock","underlying_shares":11585},"source":{"system":"sec-edgar","filing":"0000950170-23-070882","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":13,"url":"https://www.sec.gov/Archives/edgar/data/1060736/000095017023070882/ownership.xml","form_type":"4"}},{"id":1709948,"issuer":{"id":13956,"kind":"organization","name":"Seagen Inc.","symbol":"SGEN"},"owners":[{"id":31404,"kind":"person","name":"SIMPSON TODD E","position":1,"cik":"0001216477","reported_name":"SIMPSON TODD E","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Restricted Stock Units","published_at":"2023-12-15T18:42:41.000Z","date":"2023-12-14","kind":"disposition_to_issuer","planned":false,"acquired":false,"shares":5547,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F4","text":"Pursuant to the Merger Agreement, at the Effective Time, each outstanding restricted stock unit (each, a \"Company RSU\"), other than any Post-Signing Company RSU (as defined below), was cancelled and converted into the right to receive an amount in cash equal to the product of (i) the Merger Consideration, multiplied by (ii) the number of shares of Common Stock then subject to such Company RSU."},{"field":"kind","element":"transactionCoding","label":"F1","text":"Reflects the disposition of shares of common stock, par value $0.001 per share (\"Common Stock\"), of Seagen Inc. (\"Issuer\"), or of equity awards in respect of such Common Stock, as applicable, in connection with the consummation of the transactions contemplated by the Agreement and Plan of Merger, dated as of March 12, 2023 (the \"Merger Agreement\"), by and among the Issuer, Pfizer Inc. (\"Parent\") and Aris Merger Sub, Inc. (\"Merger Sub\"), a wholly owned subsidiary of Parent, pursuant to which, at 12:01 a.m. EST on December 14, 2023, the effective time of the Merger (the \"Effective Time\"), Merger Sub merged with and into the Issuer, with the Issuer surviving as a subsidiary of Parent (the \"Merger\")."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"Pursuant to the Merger Agreement, at the Effective Time, each outstanding restricted stock unit (each, a \"Company RSU\"), other than any Post-Signing Company RSU (as defined below), was cancelled and converted into the right to receive an amount in cash equal to the product of (i) the Merger Consideration, multiplied by (ii) the number of shares of Common Stock then subject to such Company RSU."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"Pursuant to the Merger Agreement, at the Effective Time, each outstanding restricted stock unit (each, a \"Company RSU\"), other than any Post-Signing Company RSU (as defined below), was cancelled and converted into the right to receive an amount in cash equal to the product of (i) the Merger Consideration, multiplied by (ii) the number of shares of Common Stock then subject to such Company RSU."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"Pursuant to the Merger Agreement, at the Effective Time, each outstanding restricted stock unit (each, a \"Company RSU\"), other than any Post-Signing Company RSU (as defined below), was cancelled and converted into the right to receive an amount in cash equal to the product of (i) the Merger Consideration, multiplied by (ii) the number of shares of Common Stock then subject to such Company RSU."}],"balance_after":0,"derivative":{"underlying":"Common stock","underlying_shares":5547},"source":{"system":"sec-edgar","filing":"0000950170-23-070882","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":12,"url":"https://www.sec.gov/Archives/edgar/data/1060736/000095017023070882/ownership.xml","form_type":"4"}},{"id":1709947,"issuer":{"id":13956,"kind":"organization","name":"Seagen Inc.","symbol":"SGEN"},"owners":[{"id":31404,"kind":"person","name":"SIMPSON TODD E","position":1,"cik":"0001216477","reported_name":"SIMPSON TODD E","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Restricted Stock Units","published_at":"2023-12-15T18:42:41.000Z","date":"2023-12-14","kind":"disposition_to_issuer","planned":false,"acquired":false,"shares":2158,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F4","text":"Pursuant to the Merger Agreement, at the Effective Time, each outstanding restricted stock unit (each, a \"Company RSU\"), other than any Post-Signing Company RSU (as defined below), was cancelled and converted into the right to receive an amount in cash equal to the product of (i) the Merger Consideration, multiplied by (ii) the number of shares of Common Stock then subject to such Company RSU."},{"field":"kind","element":"transactionCoding","label":"F1","text":"Reflects the disposition of shares of common stock, par value $0.001 per share (\"Common Stock\"), of Seagen Inc. (\"Issuer\"), or of equity awards in respect of such Common Stock, as applicable, in connection with the consummation of the transactions contemplated by the Agreement and Plan of Merger, dated as of March 12, 2023 (the \"Merger Agreement\"), by and among the Issuer, Pfizer Inc. (\"Parent\") and Aris Merger Sub, Inc. (\"Merger Sub\"), a wholly owned subsidiary of Parent, pursuant to which, at 12:01 a.m. EST on December 14, 2023, the effective time of the Merger (the \"Effective Time\"), Merger Sub merged with and into the Issuer, with the Issuer surviving as a subsidiary of Parent (the \"Merger\")."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"Pursuant to the Merger Agreement, at the Effective Time, each outstanding restricted stock unit (each, a \"Company RSU\"), other than any Post-Signing Company RSU (as defined below), was cancelled and converted into the right to receive an amount in cash equal to the product of (i) the Merger Consideration, multiplied by (ii) the number of shares of Common Stock then subject to such Company RSU."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"Pursuant to the Merger Agreement, at the Effective Time, each outstanding restricted stock unit (each, a \"Company RSU\"), other than any Post-Signing Company RSU (as defined below), was cancelled and converted into the right to receive an amount in cash equal to the product of (i) the Merger Consideration, multiplied by (ii) the number of shares of Common Stock then subject to such Company RSU."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"Pursuant to the Merger Agreement, at the Effective Time, each outstanding restricted stock unit (each, a \"Company RSU\"), other than any Post-Signing Company RSU (as defined below), was cancelled and converted into the right to receive an amount in cash equal to the product of (i) the Merger Consideration, multiplied by (ii) the number of shares of Common Stock then subject to such Company RSU."}],"balance_after":0,"derivative":{"underlying":"Common stock","underlying_shares":2158},"source":{"system":"sec-edgar","filing":"0000950170-23-070882","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":11,"url":"https://www.sec.gov/Archives/edgar/data/1060736/000095017023070882/ownership.xml","form_type":"4"}},{"id":1709946,"issuer":{"id":13956,"kind":"organization","name":"Seagen Inc.","symbol":"SGEN"},"owners":[{"id":31404,"kind":"person","name":"SIMPSON TODD E","position":1,"cik":"0001216477","reported_name":"SIMPSON TODD E","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Stock Options (Right to Buy)","published_at":"2023-12-15T18:42:41.000Z","date":"2023-12-14","kind":"disposition_to_issuer","planned":false,"acquired":false,"shares":10526,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Reflects the disposition of shares of common stock, par value $0.001 per share (\"Common Stock\"), of Seagen Inc. (\"Issuer\"), or of equity awards in respect of such Common Stock, as applicable, in connection with the consummation of the transactions contemplated by the Agreement and Plan of Merger, dated as of March 12, 2023 (the \"Merger Agreement\"), by and among the Issuer, Pfizer Inc. (\"Parent\") and Aris Merger Sub, Inc. (\"Merger Sub\"), a wholly owned subsidiary of Parent, pursuant to which, at 12:01 a.m. EST on December 14, 2023, the effective time of the Merger (the \"Effective Time\"), Merger Sub merged with and into the Issuer, with the Issuer surviving as a subsidiary of Parent (the \"Merger\")."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"Pursuant to the Merger Agreement, each outstanding option, whether or not then vested, was cancelled in exchange for the right to receive an amount in cash equal to the product of (i) the excess, if any, of the Merger Consideration over the per-share exercise price of such option, multiplied by (ii) the number of shares of Common Stock then subject to such option."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"Pursuant to the Merger Agreement, each outstanding option, whether or not then vested, was cancelled in exchange for the right to receive an amount in cash equal to the product of (i) the excess, if any, of the Merger Consideration over the per-share exercise price of such option, multiplied by (ii) the number of shares of Common Stock then subject to such option."}],"balance_after":0,"derivative":{"exercise_price":34.2,"expiration_date":"2026-05-09","underlying":"Common stock","underlying_shares":10526},"source":{"system":"sec-edgar","filing":"0000950170-23-070882","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":10,"url":"https://www.sec.gov/Archives/edgar/data/1060736/000095017023070882/ownership.xml","form_type":"4"}},{"id":1709945,"issuer":{"id":13956,"kind":"organization","name":"Seagen Inc.","symbol":"SGEN"},"owners":[{"id":31404,"kind":"person","name":"SIMPSON TODD E","position":1,"cik":"0001216477","reported_name":"SIMPSON TODD E","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Stock Options (Right to Buy)","published_at":"2023-12-15T18:42:41.000Z","date":"2023-12-14","kind":"disposition_to_issuer","planned":false,"acquired":false,"shares":26427,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Reflects the disposition of shares of common stock, par value $0.001 per share (\"Common Stock\"), of Seagen Inc. (\"Issuer\"), or of equity awards in respect of such Common Stock, as applicable, in connection with the consummation of the transactions contemplated by the Agreement and Plan of Merger, dated as of March 12, 2023 (the \"Merger Agreement\"), by and among the Issuer, Pfizer Inc. (\"Parent\") and Aris Merger Sub, Inc. (\"Merger Sub\"), a wholly owned subsidiary of Parent, pursuant to which, at 12:01 a.m. EST on December 14, 2023, the effective time of the Merger (the \"Effective Time\"), Merger Sub merged with and into the Issuer, with the Issuer surviving as a subsidiary of Parent (the \"Merger\")."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"Pursuant to the Merger Agreement, each outstanding option, whether or not then vested, was cancelled in exchange for the right to receive an amount in cash equal to the product of (i) the excess, if any, of the Merger Consideration over the per-share exercise price of such option, multiplied by (ii) the number of shares of Common Stock then subject to such option."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"Pursuant to the Merger Agreement, each outstanding option, whether or not then vested, was cancelled in exchange for the right to receive an amount in cash equal to the product of (i) the excess, if any, of the Merger Consideration over the per-share exercise price of such option, multiplied by (ii) the number of shares of Common Stock then subject to such option."}],"balance_after":0,"derivative":{"exercise_price":155.87,"expiration_date":"2031-08-16","underlying":"Common stock","underlying_shares":26427},"source":{"system":"sec-edgar","filing":"0000950170-23-070882","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":9,"url":"https://www.sec.gov/Archives/edgar/data/1060736/000095017023070882/ownership.xml","form_type":"4"}},{"id":1709944,"issuer":{"id":13956,"kind":"organization","name":"Seagen Inc.","symbol":"SGEN"},"owners":[{"id":31404,"kind":"person","name":"SIMPSON TODD E","position":1,"cik":"0001216477","reported_name":"SIMPSON TODD E","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Stock Options (Right to Buy)","published_at":"2023-12-15T18:42:41.000Z","date":"2023-12-14","kind":"disposition_to_issuer","planned":false,"acquired":false,"shares":642,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Reflects the disposition of shares of common stock, par value $0.001 per share (\"Common Stock\"), of Seagen Inc. (\"Issuer\"), or of equity awards in respect of such Common Stock, as applicable, in connection with the consummation of the transactions contemplated by the Agreement and Plan of Merger, dated as of March 12, 2023 (the \"Merger Agreement\"), by and among the Issuer, Pfizer Inc. (\"Parent\") and Aris Merger Sub, Inc. 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will be settled in common stock upon vesting. 40% of the reporting person's annual equity award was granted in the form of performance stock units, which are not reflected here, and will be treated the same as these restricted stock units in the event the transaction with Pfizer\ncloses."},{"field":"date","element":"transactionDate","label":"F2","text":"Shares shall vest at a rate of 25% on each anniversary of August 15, 2023 until all shares are fully vested at the end of four years."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"Amount of securities beneficially owned following reported transactions includes restricted stock units subject to 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The Reporting Person hereby undertakes to provide upon request by the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the sales were effected."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"Amount of securities beneficially owned following reported transactions includes restricted stock units subject to vesting."}],"balance_after":117185,"source":{"system":"sec-edgar","filing":"0000899243-23-008013","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1060736/000089924323008013/doc4.xml","form_type":"4"}},{"id":1959403,"issuer":{"id":13956,"kind":"organization","name":"Seagen Inc.","symbol":"SGEN"},"owners":[{"id":31404,"kind":"person","name":"SIMPSON TODD E","position":1,"cik":"0001216477","reported_name":"SIMPSON TODD E","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2023-03-10T16:11:01.000Z","date":"2023-03-09","kind":"sale","acquired":false,"shares":26449,"price":176.71,"value":4673802.79,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F2","text":"The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"Reflects sales of common stock executed in multiple transactions at prices ranging from $176.19 to $177.19. 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The Reporting Person hereby undertakes to provide upon request by the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the sales were effected."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"Amount of securities beneficially owned following reported transactions includes restricted stock units subject to vesting."}],"balance_after":123267,"source":{"system":"sec-edgar","filing":"0000899243-23-008013","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1060736/000089924323008013/doc4.xml","form_type":"4"}},{"id":1959402,"issuer":{"id":13956,"kind":"organization","name":"Seagen Inc.","symbol":"SGEN"},"owners":[{"id":31404,"kind":"person","name":"SIMPSON TODD E","position":1,"cik":"0001216477","reported_name":"SIMPSON TODD E","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2023-03-10T16:11:01.000Z","date":"2023-03-09","kind":"sale","acquired":false,"shares":10262,"price":175.89,"value":1804983.18,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F2","text":"The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"Reflects sales of common stock executed in multiple transactions at prices ranging from $175.19 to $176.18. 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