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The Compensation Committee of the Issuer's Board of Directors (the \"Compensation Committee\") determined on March 24, 2022 the level of achievement for the second year of the multi-year performance period. The number of shares of common stock subject to the stock option as reported herein consists of the portion of the award that was earned based upon the achievement with respect to the second-year performance goal. 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The Compensation Committee of the Issuer's Board of Directors (the \"Compensation Committee\") determined on March 24, 2022 the level of achievement for the first year of the multi-year performance period. The Reporting Person elected to receive this performance grant in the form of restricted stock units. The number of shares reported herein consists of the portion of the award that was deemed earned based upon the achievement with respect to the first-year performance goal.  50% of the number of shares of common stock reported herein will vest and be delivered on April 6, 2022 and the remaining 50% will vest and be delivered on January 6, 2023."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 21,787 restricted stock units that have not yet vested or been delivered to the Reporting Person."}],"balance_after":181594,"source":{"system":"sec-edgar","filing":"0001104659-22-038980","document":"tm2210670-2_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1192448/000110465922038980/tm2210670-2_4seq1.xml","form_type":"4"}},{"id":2324158,"issuer":{"id":3510,"kind":"organization","name":"GLAUKOS Corp","symbol":"GKOS"},"owners":[{"id":128720,"kind":"person","name":"Calcaterra Chris M.","position":1,"cik":"0001640771","reported_name":"Calcaterra Chris M.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operating Officer"}}],"security":"Common Stock","published_at":"2022-03-19T01:06:10.000Z","date":"2022-03-16","kind":"tax_withholding","acquired":false,"shares":646,"price":48.59,"value":31389.14,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Consists of shares withheld by the Issuer with respect to income taxes payable by the Reporting Person upon vesting and delivery of shares of common stock underlying restricted stock units previously granted by\nthe Issuer on March 14, 2019."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 17,901 restricted stock units that have not yet vested or been delivered to the Reporting Person."}],"balance_after":177708,"source":{"system":"sec-edgar","filing":"0001104659-22-035761","document":"tm229831-1_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1192448/000110465922035761/tm229831-1_4seq1.xml","form_type":"4"}},{"id":2439871,"issuer":{"id":3510,"kind":"organization","name":"GLAUKOS Corp","symbol":"GKOS"},"owners":[{"id":128720,"kind":"person","name":"Calcaterra Chris M.","position":1,"cik":"0001640771","reported_name":"Calcaterra Chris M.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operating Officer"}}],"security":"Common Stock","published_at":"2022-01-07T23:46:38.000Z","date":"2022-01-06","kind":"tax_withholding","acquired":false,"shares":168,"price":47.42,"value":7966.56,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Consists of shares withheld by the Issuer with respect to income taxes payable by the Reporting Person upon vesting and delivery of shares of common stock underlying restricted stock units previously granted by the Issuer on December 17, 2020."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 19,479 restricted stock units that have not yet vested or been delivered to the Reporting Person."}],"balance_after":178354,"source":{"system":"sec-edgar","filing":"0001104659-22-002371","document":"tm222365-2_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1192448/000110465922002371/tm222365-2_4seq1.xml","form_type":"4"}},{"id":2776108,"issuer":{"id":3510,"kind":"organization","name":"GLAUKOS Corp","symbol":"GKOS"},"owners":[{"id":128720,"kind":"person","name":"Calcaterra Chris M.","position":1,"cik":"0001640771","reported_name":"Calcaterra Chris M.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operating Officer"}}],"security":"Stock Options (Right to Buy)","published_at":"2021-03-23T00:46:20.000Z","date":"2021-03-18","kind":"grant","acquired":true,"shares":4562,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F6","text":"Represents an option to purchase shares of common stock previously granted by the Issuer on April 1, 2020 pursuant to the Reporting Person's election to receive a portion of his annual bonus for 2020 in the form of stock options rather than cash (the \"Bonus Election\"). The Compensation Committee determined on March 18, 2021 the annual bonus payable to the Reporting Person pursuant to the Issuer's 2020 executive bonus plan and the number of shares of common stock subject to the stock option earned by the Reporting Person in accordance with the Bonus Election, subject to continued employment through the vesting date. 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The Compensation Committee of the Issuer's Board of Directors (the \"Compensation Committee\") determined on March 18, 2021 the level of achievement for the first year of the multi-year performance period. 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The price reported above reflects the weighted average price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 5,967 restricted stock units that have not yet vested or been delivered to the Reporting Person."}],"balance_after":163806,"source":{"system":"sec-edgar","filing":"0001127602-21-003721","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1192448/000112760221003721/form4.xml","form_type":"4"}},{"id":2881170,"issuer":{"id":3510,"kind":"organization","name":"GLAUKOS Corp","symbol":"GKOS"},"owners":[{"id":128720,"kind":"person","name":"Calcaterra Chris M.","position":1,"cik":"0001640771","reported_name":"Calcaterra Chris M.","relationship":{"officer":true,"officer_title":"Chief Operating Officer"}}],"security":"Common Stock","published_at":"2021-02-03T21:44:04.000Z","date":"2021-02-01","kind":"sale","acquired":false,"shares":24401,"price":88.7377,"value":2165288.6177,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F5","text":"This transaction was executed in multiple trades at prices ranging from $88.23 to $89.22.  The price reported above reflects the weighted average price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 5,967 restricted stock units that have not yet vested or been delivered to the Reporting Person."}],"balance_after":180591,"source":{"system":"sec-edgar","filing":"0001127602-21-003721","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1192448/000112760221003721/form4.xml","form_type":"4"}},{"id":2881169,"issuer":{"id":3510,"kind":"organization","name":"GLAUKOS Corp","symbol":"GKOS"},"owners":[{"id":128720,"kind":"person","name":"Calcaterra Chris M.","position":1,"cik":"0001640771","reported_name":"Calcaterra Chris M.","relationship":{"officer":true,"officer_title":"Chief Operating Officer"}}],"security":"Common Stock","published_at":"2021-02-03T21:44:04.000Z","date":"2021-02-01","kind":"sale","acquired":false,"shares":6030,"price":87.7853,"value":529345.359,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F4","text":"This transaction was executed in multiple trades at prices ranging from $87.235 to $88.22. The price reported above reflects the weighted average price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 5,967 restricted stock units that have not yet vested or been delivered to the Reporting Person."}],"balance_after":204992,"source":{"system":"sec-edgar","filing":"0001127602-21-003721","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1192448/000112760221003721/form4.xml","form_type":"4"}},{"id":2881168,"issuer":{"id":3510,"kind":"organization","name":"GLAUKOS Corp","symbol":"GKOS"},"owners":[{"id":128720,"kind":"person","name":"Calcaterra Chris M.","position":1,"cik":"0001640771","reported_name":"Calcaterra Chris M.","relationship":{"officer":true,"officer_title":"Chief Operating Officer"}}],"security":"Common Stock","published_at":"2021-02-03T21:44:04.000Z","date":"2021-02-01","kind":"sale","acquired":false,"shares":13201,"price":86.6477,"value":1143836.2877,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F3","text":"This transaction was executed in multiple trades at prices ranging from $86.22 to $87.19. The price reported above reflects the weighted average price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 5,967 restricted stock units that have not yet vested or been delivered to the Reporting Person."}],"balance_after":211022,"source":{"system":"sec-edgar","filing":"0001127602-21-003721","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1192448/000112760221003721/form4.xml","form_type":"4"}},{"id":2881167,"issuer":{"id":3510,"kind":"organization","name":"GLAUKOS Corp","symbol":"GKOS"},"owners":[{"id":128720,"kind":"person","name":"Calcaterra Chris M.","position":1,"cik":"0001640771","reported_name":"Calcaterra Chris M.","relationship":{"officer":true,"officer_title":"Chief Operating Officer"}}],"security":"Common Stock","published_at":"2021-02-03T21:44:04.000Z","date":"2021-02-01","kind":"exercise","acquired":true,"shares":60417,"price":16.49,"value":996276.33,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"These trades were made pursuant to a Rule 10b5-1 trading plan with pre-determined share amounts and prices."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 5,967 restricted stock units that have not yet vested or been delivered to the Reporting Person."}],"balance_after":224223,"source":{"system":"sec-edgar","filing":"0001127602-21-003721","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1192448/000112760221003721/form4.xml","form_type":"4"}},{"id":2937559,"issuer":{"id":3510,"kind":"organization","name":"GLAUKOS Corp","symbol":"GKOS"},"owners":[{"id":128720,"kind":"person","name":"Calcaterra Chris M.","position":1,"cik":"0001640771","reported_name":"Calcaterra Chris M.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operating Officer"}}],"security":"Common Stock","published_at":"2020-12-19T01:40:32.000Z","date":"2020-12-17","kind":"grant","acquired":true,"shares":1233,"price":72.99,"value":89996.67,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F3","text":"Granted by the Issuer in the form of restricted stock units which vest over a three-year period, with one-third to vest on each anniversary of the grant date."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F4","text":"Includes 5,967 restricted stock units that have not yet vested or been delivered to the Reporting Person."}],"balance_after":163806,"source":{"system":"sec-edgar","filing":"0001104659-20-137560","document":"a4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1192448/000110465920137560/a4.xml","form_type":"4"}},{"id":2937558,"issuer":{"id":3510,"kind":"organization","name":"GLAUKOS Corp","symbol":"GKOS"},"owners":[{"id":128720,"kind":"person","name":"Calcaterra Chris M.","position":1,"cik":"0001640771","reported_name":"Calcaterra Chris M.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operating Officer"}}],"security":"Common Stock","published_at":"2020-12-19T01:40:32.000Z","date":"2020-12-16","kind":"grant","acquired":true,"shares":4128,"price":71.94,"value":296968.32,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents shares of common stock subject to a performance-based restricted stock unit award previously granted by the Issuer on March 14, 2019, the vesting of which was subject to the Issuer's achievement of certain performance goals within three years of the grant date. The Compensation Committee of the Issuer's Board of Directors determined on December 16, 2020 that the performance goals had been achieved. 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The price reported above reflects the weighted average price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected."}],"balance_after":150000,"source":{"system":"sec-edgar","filing":"0001104659-19-013430","document":"a4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1192448/000110465919013430/a4.xml","form_type":"4"}},{"id":3605919,"issuer":{"id":3510,"kind":"organization","name":"GLAUKOS Corp","symbol":"GKOS"},"owners":[{"id":128720,"kind":"person","name":"Calcaterra Chris M.","position":1,"cik":"0001640771","reported_name":"Calcaterra Chris M.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operating Officer"}}],"security":"Common Stock","published_at":"2019-03-07T23:17:31.000Z","date":"2019-03-06","kind":"sale","acquired":false,"shares":4076,"price":66.86,"value":272521.36,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"These trades were made pursuant to a Rule 10b5-1 trading plan with pre-determined share amounts and prices."},{"field":"price","element":"transactionPricePerShare","label":"F5","text":"This transaction was executed in multiple trades at prices ranging from $66.43 to $67.39. The price reported above reflects the weighted average price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected."}],"balance_after":150727,"source":{"system":"sec-edgar","filing":"0001104659-19-013430","document":"a4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1192448/000110465919013430/a4.xml","form_type":"4"}},{"id":3605918,"issuer":{"id":3510,"kind":"organization","name":"GLAUKOS Corp","symbol":"GKOS"},"owners":[{"id":128720,"kind":"person","name":"Calcaterra Chris M.","position":1,"cik":"0001640771","reported_name":"Calcaterra Chris M.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operating Officer"}}],"security":"Common Stock","published_at":"2019-03-07T23:17:31.000Z","date":"2019-03-06","kind":"sale","acquired":false,"shares":11801,"price":66.02,"value":779102.02,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"These trades were made pursuant to a Rule 10b5-1 trading plan with pre-determined share amounts and prices."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"This transaction was executed in multiple trades at prices ranging from $65.40 to $66.39. The price reported above reflects the weighted average price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected."}],"balance_after":154803,"source":{"system":"sec-edgar","filing":"0001104659-19-013430","document":"a4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1192448/000110465919013430/a4.xml","form_type":"4"}},{"id":3605917,"issuer":{"id":3510,"kind":"organization","name":"GLAUKOS Corp","symbol":"GKOS"},"owners":[{"id":128720,"kind":"person","name":"Calcaterra Chris M.","position":1,"cik":"0001640771","reported_name":"Calcaterra Chris M.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operating Officer"}}],"security":"Common Stock","published_at":"2019-03-07T23:17:31.000Z","date":"2019-03-05","kind":"sale","acquired":false,"shares":26740,"price":68.21,"value":1823935.4,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"These trades were made pursuant to a Rule 10b5-1 trading plan with pre-determined share amounts and prices."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"This transaction was executed in multiple trades at prices ranging from $68.12 to $68.36. 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The price reported above reflects the weighted average price. 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The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected."}],"balance_after":240000,"source":{"system":"sec-edgar","filing":"0001562180-17-000222","document":"primarydocument.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1192448/000156218017000222/primarydocument.xml","form_type":"4"}},{"id":4492953,"issuer":{"id":3510,"kind":"organization","name":"GLAUKOS Corp","symbol":"GKOS"},"owners":[{"id":128720,"kind":"person","name":"Calcaterra Chris M.","position":1,"cik":"0001640771","reported_name":"Calcaterra Chris M.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Commercial Officer"}}],"security":"Common Stock","published_at":"2017-01-11T21:30:59.000Z","date":"2017-01-09","kind":"exercise","acquired":true,"shares":20000,"price":7.275,"value":145500.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"These trades were made pursuant to a Rule 10b5-1 trading plan with pre-determined share amounts and prices."}],"balance_after":260000,"source":{"system":"sec-edgar","filing":"0001562180-17-000222","document":"primarydocument.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1192448/000156218017000222/primarydocument.xml","form_type":"4"}},{"id":4574742,"issuer":{"id":3510,"kind":"organization","name":"GLAUKOS Corp","symbol":"GKOS"},"owners":[{"id":128720,"kind":"person","name":"Calcaterra Chris M.","position":1,"cik":"0001640771","reported_name":"Calcaterra Chris M.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Commercial Officer"}}],"security":"Stock Options (Right to buy)","published_at":"2016-10-25T20:55:43.000Z","date":"2016-10-24","kind":"exercise","acquired":false,"shares":20000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"These trades were made pursuant to a Rule 10b5-1 trading plan with pre-determined share amounts and prices."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"This option, which represented the right to purchase a total of 110,000 shares, has a two-year vesting schedule in which 75% vested on July 10, 2015, the first anniversary of the grant date, and the remainder vests equally for 12 months thereafter, such that the stock option  will vest in full on July 31, 2016, the second anniversary of the grant date."}],"balance_after":38136,"derivative":{"exercise_price":7.275,"expiration_date":"2024-07-10","underlying":"Common Stock","underlying_shares":20000},"source":{"system":"sec-edgar","filing":"0001562180-16-003274","document":"primarydocument.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1192448/000156218016003274/primarydocument.xml","form_type":"4"}},{"id":4574741,"issuer":{"id":3510,"kind":"organization","name":"GLAUKOS Corp","symbol":"GKOS"},"owners":[{"id":128720,"kind":"person","name":"Calcaterra Chris M.","position":1,"cik":"0001640771","reported_name":"Calcaterra Chris M.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Commercial Officer"}}],"security":"Common Stock","published_at":"2016-10-25T20:55:43.000Z","date":"2016-10-24","kind":"sale","acquired":false,"shares":20000,"price":36.01,"value":720200.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"These trades were made pursuant to a Rule 10b5-1 trading plan with pre-determined share amounts and prices."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"This transaction was executed in multiple trades at prices ranging from $36.00 to $36.11. 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The price reported above reflects the weighted average price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected."}],"balance_after":240000,"source":{"system":"sec-edgar","filing":"0001562180-16-003252","document":"primarydocument.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1192448/000156218016003252/primarydocument.xml","form_type":"4"}},{"id":4576813,"issuer":{"id":3510,"kind":"organization","name":"GLAUKOS Corp","symbol":"GKOS"},"owners":[{"id":128720,"kind":"person","name":"Calcaterra Chris M.","position":1,"cik":"0001640771","reported_name":"Calcaterra Chris M.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Commercial Officer"}}],"security":"Common Stock","published_at":"2016-10-20T22:37:47.000Z","date":"2016-10-20","kind":"sale","acquired":false,"shares":37000,"price":34.81,"value":1287970.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"These trades were made pursuant to a Rule 10b5-1 trading plan with pre-determined share amounts and prices."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"This transaction was executed in multiple trades at prices ranging from $34.33 to $35.32.  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