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These additional units are subject to the same conditions regarding vesting and settlement as the underlying restricted stock units to which they relate."}],"balance_after":539022,"source":{"system":"sec-edgar","filing":"0001225208-17-010732","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/908937/000122520817010732/doc4.xml","form_type":"4"}},{"id":4411360,"issuer":{"id":3564,"kind":"organization","name":"SIRIUS XM HOLDINGS INC.","symbol":"(SIRI)"},"owners":[{"id":174120,"kind":"person","name":"Thomson Katherine Kohler","position":1,"cik":"0001592472","reported_name":"Thomson Katherine Kohler","relationship":{"officer":true,"officer_title":"EVP, Chief Marketing Officer"}}],"security":"Common Stock","published_at":"2017-03-02T21:04:59.000Z","date":"2017-02-28","kind":"grant","acquired":true,"shares":1454,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"On February 28, 2017, Sirius XM Holdings Inc. 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These additional units are subject to the same conditions regarding vesting and settlement as the underlying restricted stock units to which they relate."}],"balance_after":537664,"source":{"system":"sec-edgar","filing":"0001225208-17-005289","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/908937/000122520817005289/doc4.xml","form_type":"4"}},{"id":4466973,"issuer":{"id":3564,"kind":"organization","name":"SIRIUS XM HOLDINGS INC.","symbol":"(SIRI)"},"owners":[{"id":174120,"kind":"person","name":"Thomson Katherine Kohler","position":1,"cik":"0001592472","reported_name":"Thomson Katherine Kohler","relationship":{"officer":true,"officer_title":"EVP, Chief Marketing Officer"}}],"security":"Stock Option (Right to Buy)","published_at":"2017-02-06T21:09:16.000Z","date":"2017-02-02","kind":"grant","acquired":true,"shares":527044,"price":4.75,"value":2503459.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Options will vest as follows: 175,682 - 2/2/2018; 175,681 - 2/2/2019 and 175,681 - 2/2/2020."}],"balance_after":527044,"derivative":{"exercise_price":4.75,"exercise_date":"2018-02-02","expiration_date":"2027-02-02","underlying":"Common Stock","underlying_shares":527044},"source":{"system":"sec-edgar","filing":"0001225208-17-002451","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/908937/000122520817002451/doc4.xml","form_type":"4"}},{"id":4466972,"issuer":{"id":3564,"kind":"organization","name":"SIRIUS XM HOLDINGS INC.","symbol":"(SIRI)"},"owners":[{"id":174120,"kind":"person","name":"Thomson Katherine Kohler","position":1,"cik":"0001592472","reported_name":"Thomson Katherine Kohler","relationship":{"officer":true,"officer_title":"EVP, Chief Marketing Officer"}}],"security":"Common Stock","published_at":"2017-02-06T21:09:16.000Z","date":"2017-02-02","kind":"grant","acquired":true,"shares":105263,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Restricted Stock Units will vest as follows:  35,088 - 2/2/2018; 35,088 - 2/2/2019 and 35,087 - 2/2/2020."}],"balance_after":536210,"source":{"system":"sec-edgar","filing":"0001225208-17-002451","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/908937/000122520817002451/doc4.xml","form_type":"4"}},{"id":4532056,"issuer":{"id":3564,"kind":"organization","name":"SIRIUS XM HOLDINGS INC.","symbol":"(SIRI)"},"owners":[{"id":174120,"kind":"person","name":"Thomson Katherine Kohler","position":1,"cik":"0001592472","reported_name":"Thomson Katherine Kohler","relationship":{"officer":true,"officer_title":"EVP, Chief Marketing Officer"}}],"security":"Common Stock","published_at":"2016-12-06T21:08:17.000Z","date":"2016-12-02","kind":"tax_withholding","acquired":false,"shares":17141,"price":4.555,"value":78077.255,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents the surrender of common stock to the Company to cover withholding taxes upon the vesting of restricted stock units."}],"balance_after":430947,"source":{"system":"sec-edgar","filing":"0001225208-16-042781","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/908937/000122520816042781/doc4.xml","form_type":"4"}},{"id":4537700,"issuer":{"id":3564,"kind":"organization","name":"SIRIUS XM HOLDINGS INC.","symbol":"(SIRI)"},"owners":[{"id":174120,"kind":"person","name":"Thomson Katherine Kohler","position":1,"cik":"0001592472","reported_name":"Thomson Katherine Kohler","relationship":{"officer":true,"officer_title":"EVP, Chief Marketing Officer"}}],"security":"Common Stock","published_at":"2016-12-01T21:04:53.000Z","date":"2016-11-30","kind":"grant","acquired":true,"shares":952,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"On November 30, 2016, Sirius XM Holdings Inc. 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