{"transactions":[{"id":2138,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":1669,"kind":"person","name":"Cavanagh Michael J","position":1,"cik":"0001304481","reported_name":"Cavanagh Michael J","relationship":{"director":true,"officer":true,"officer_title":"Co-CEO"}}],"security":"Restricted Stock Units","published_at":"2026-09-03T20:13:08.000Z","date":"2026-09-01","kind":"other","planned":false,"acquired":false,"shares":565642,"price":26.3,"value":14876384.6,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"Each restricted stock unit represents a contingent right to receive one share of Class A Common Stock."},{"field":"kind","element":"transactionCoding","label":"F3","text":"The reporting person had previously elected to defer receipt of shares and to notionally reinvest the deferred compensation in another investment plan."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"The reporting person had previously elected to defer receipt of shares and to notionally reinvest the deferred compensation in another investment plan."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"The reporting person had previously elected to defer receipt of shares and to notionally reinvest the deferred compensation in another investment plan."}],"balance_after":0,"derivative":{"underlying":"Class A Common Stock","underlying_shares":565642},"source":{"system":"sec-edgar","filing":"0001225208-26-007616","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1304481/000122520826007616/doc4.xml","form_type":"4"}},{"id":2137,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":1669,"kind":"person","name":"Cavanagh Michael J","position":1,"cik":"0001304481","reported_name":"Cavanagh Michael J","relationship":{"director":true,"officer":true,"officer_title":"Co-CEO"}}],"security":"Phantom Stock","published_at":"2026-09-03T20:13:08.000Z","date":"2026-09-01","kind":"other","planned":false,"acquired":false,"shares":392769.065,"price":26.3,"value":10329826.4095,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each share of phantom stock represents the economic equivalent to one share of Class A common stock.  Phantom shares have been deferred under our deferred compensation plans, may be transferred into alternative investments under the terms of our deferred compensation plans and settle in cash."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Each share of phantom stock represents the economic equivalent to one share of Class A common stock.  Phantom shares have been deferred under our deferred compensation plans, may be transferred into alternative investments under the terms of our deferred compensation plans and settle in cash."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Each share of phantom stock represents the economic equivalent to one share of Class A common stock.  Phantom shares have been deferred under our deferred compensation plans, may be transferred into alternative investments under the terms of our deferred compensation plans and settle in cash."}],"balance_after":0,"derivative":{"underlying":"Class A Common Stock","underlying_shares":392769.065},"source":{"system":"sec-edgar","filing":"0001225208-26-007616","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1304481/000122520826007616/doc4.xml","form_type":"4"}},{"id":869340,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":1669,"kind":"person","name":"Cavanagh Michael J","position":1,"cik":"0001304481","reported_name":"Cavanagh Michael J","relationship":{"director":true,"officer":true,"officer_title":"Co-CEO"}}],"security":"Restricted Stock Units","published_at":"2026-03-03T21:17:05.000Z","date":"2026-03-01","kind":"exercise","planned":false,"acquired":false,"shares":34980,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"Each restricted stock unit represents a contingent right to receive one share of Class A Common Stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"These restricted stock units vest on the transaction date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"These restricted stock units vest on the transaction date."}],"balance_after":291007,"derivative":{"underlying":"Class A Common Stock","underlying_shares":34980},"source":{"system":"sec-edgar","filing":"0001225208-26-002963","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1166691/000122520826002963/doc4.xml","form_type":"4"}},{"id":869339,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":1669,"kind":"person","name":"Cavanagh Michael J","position":1,"cik":"0001304481","reported_name":"Cavanagh Michael J","relationship":{"director":true,"officer":true,"officer_title":"Co-CEO"}}],"security":"Class A Common Stock","published_at":"2026-03-03T21:17:05.000Z","date":"2026-03-01","kind":"tax_withholding","planned":false,"acquired":false,"shares":34980,"price":30.96,"value":1082980.8,"ownership":{"direct":true},"balance_after":38633,"source":{"system":"sec-edgar","filing":"0001225208-26-002963","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1166691/000122520826002963/doc4.xml","form_type":"4"}},{"id":869338,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":1669,"kind":"person","name":"Cavanagh Michael J","position":1,"cik":"0001304481","reported_name":"Cavanagh Michael J","relationship":{"director":true,"officer":true,"officer_title":"Co-CEO"}}],"security":"Class A Common Stock","published_at":"2026-03-03T21:17:05.000Z","date":"2026-03-01","kind":"exercise","planned":false,"acquired":true,"shares":34980,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price is $0.00."}],"balance_after":73613,"source":{"system":"sec-edgar","filing":"0001225208-26-002963","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1166691/000122520826002963/doc4.xml","form_type":"4"}},{"id":880095,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":1669,"kind":"person","name":"Cavanagh Michael J","position":1,"cik":"0001304481","reported_name":"Cavanagh Michael J","relationship":{"director":true,"officer":true,"officer_title":"Co-CEO"}}],"security":"Restricted Stock Units","published_at":"2026-02-26T21:07:56.000Z","date":"2026-02-24","kind":"grant","planned":false,"acquired":true,"shares":325987,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each restricted stock unit represents a contingent right to receive one share of Class A Common Stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The restricted stock units were granted subject to the achievement of performance conditions, which were attained on the transaction date. The restricted stock units vest 100% on the 3rd anniversary of the grant date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"The restricted stock units were granted subject to the achievement of performance conditions, which were attained on the transaction date. The restricted stock units vest 100% on the 3rd anniversary of the grant date."}],"balance_after":325987,"derivative":{"underlying":"Class A Common Stock","underlying_shares":325987},"source":{"system":"sec-edgar","filing":"0001225208-26-002692","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1166691/000122520826002692/doc4.xml","form_type":"4"}},{"id":905503,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":1669,"kind":"person","name":"Cavanagh Michael J","position":1,"cik":"0001304481","reported_name":"Cavanagh Michael J","relationship":{"director":true,"officer":true,"officer_title":"Co-CEO"}}],"security":"Option to Purchase","published_at":"2026-02-13T21:43:39.000Z","date":"2026-02-11","kind":"exercise","planned":false,"acquired":false,"shares":441743,"price":28.38,"value":12536666.34,"ownership":{"direct":false,"nature":"By Trust"},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"With respect to the number of shares set forth in Column 7, this option is immediately exercisable."}],"balance_after":0,"derivative":{"exercise_price":28.38,"expiration_date":"2026-03-17","underlying":"Class A Common Stock","underlying_shares":441743},"source":{"system":"sec-edgar","filing":"0001225208-26-001888","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/1166691/000122520826001888/doc4.xml","form_type":"4"}},{"id":905502,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":1669,"kind":"person","name":"Cavanagh Michael J","position":1,"cik":"0001304481","reported_name":"Cavanagh Michael J","relationship":{"director":true,"officer":true,"officer_title":"Co-CEO"}}],"security":"Option to Purchase","published_at":"2026-02-13T21:43:39.000Z","date":"2026-02-11","kind":"exercise","planned":false,"acquired":false,"shares":294495,"price":28.38,"value":8357768.1,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"With respect to the number of shares set forth in Column 7, this option is immediately exercisable."}],"balance_after":0,"derivative":{"exercise_price":28.38,"expiration_date":"2026-03-17","underlying":"Class A Common Stock","underlying_shares":294495},"source":{"system":"sec-edgar","filing":"0001225208-26-001888","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1166691/000122520826001888/doc4.xml","form_type":"4"}},{"id":905501,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":1669,"kind":"person","name":"Cavanagh Michael J","position":1,"cik":"0001304481","reported_name":"Cavanagh Michael J","relationship":{"director":true,"officer":true,"officer_title":"Co-CEO"}}],"security":"Class A Common Stock","published_at":"2026-02-13T21:43:39.000Z","date":"2026-02-11","kind":"tax_withholding","planned":false,"acquired":false,"shares":383796,"price":32.665,"value":12536696.34,"ownership":{"direct":false,"nature":"By Trust"},"balance_after":238540,"source":{"system":"sec-edgar","filing":"0001225208-26-001888","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1166691/000122520826001888/doc4.xml","form_type":"4"}},{"id":905500,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":1669,"kind":"person","name":"Cavanagh Michael J","position":1,"cik":"0001304481","reported_name":"Cavanagh Michael J","relationship":{"director":true,"officer":true,"officer_title":"Co-CEO"}}],"security":"Class A Common Stock","published_at":"2026-02-13T21:43:39.000Z","date":"2026-02-11","kind":"sale","planned":false,"acquired":false,"shares":57947,"price":32.66,"value":1892549.02,"ownership":{"direct":false,"nature":"By Trust"},"balance_after":622336,"source":{"system":"sec-edgar","filing":"0001225208-26-001888","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1166691/000122520826001888/doc4.xml","form_type":"4"}},{"id":905499,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":1669,"kind":"person","name":"Cavanagh Michael J","position":1,"cik":"0001304481","reported_name":"Cavanagh Michael J","relationship":{"director":true,"officer":true,"officer_title":"Co-CEO"}}],"security":"Class A Common Stock","published_at":"2026-02-13T21:43:39.000Z","date":"2026-02-11","kind":"exercise","planned":false,"acquired":true,"shares":441743,"price":28.38,"value":12536666.34,"ownership":{"direct":false,"nature":"By Trust"},"balance_after":680283,"source":{"system":"sec-edgar","filing":"0001225208-26-001888","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1166691/000122520826001888/doc4.xml","form_type":"4"}},{"id":905498,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":1669,"kind":"person","name":"Cavanagh Michael J","position":1,"cik":"0001304481","reported_name":"Cavanagh Michael J","relationship":{"director":true,"officer":true,"officer_title":"Co-CEO"}}],"security":"Class A Common Stock","published_at":"2026-02-13T21:43:39.000Z","date":"2026-02-11","kind":"tax_withholding","planned":false,"acquired":false,"shares":294495,"price":32.66,"value":9618206.7,"ownership":{"direct":true},"balance_after":38633,"source":{"system":"sec-edgar","filing":"0001225208-26-001888","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1166691/000122520826001888/doc4.xml","form_type":"4"}},{"id":905497,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":1669,"kind":"person","name":"Cavanagh Michael J","position":1,"cik":"0001304481","reported_name":"Cavanagh Michael J","relationship":{"director":true,"officer":true,"officer_title":"Co-CEO"}}],"security":"Class A Common Stock","published_at":"2026-02-13T21:43:39.000Z","date":"2026-02-11","kind":"exercise","planned":false,"acquired":true,"shares":294495,"price":28.38,"value":8357768.1,"ownership":{"direct":true},"balance_after":333128,"source":{"system":"sec-edgar","filing":"0001225208-26-001888","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1166691/000122520826001888/doc4.xml","form_type":"4"}},{"id":922471,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":1669,"kind":"person","name":"Cavanagh Michael J","position":1,"cik":"0001304481","reported_name":"Cavanagh Michael J","relationship":{"director":true,"officer":true,"officer_title":"Co-CEO"}}],"security":"Restricted Stock Units","published_at":"2026-02-03T21:25:39.000Z","date":"2026-02-02","kind":"other","planned":false,"acquired":false,"shares":50320,"price":29.59,"value":1488968.8,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each restricted stock unit represents a contingent right to receive one share of Class A Common Stock."},{"field":"kind","element":"transactionCoding","label":"F2","text":"The reporting person had previously elected to defer receipt of shares and to notionally reinvest the deferred compensation in another investment plan."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"These restricted stock units vest on the transaction date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"These restricted stock units vest on the transaction date."}],"balance_after":274635,"derivative":{"exercise_price":0,"underlying":"Class A Common Stock","underlying_shares":50320},"source":{"system":"sec-edgar","filing":"0001225208-26-001165","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1166691/000122520826001165/doc4.xml","form_type":"4"}},{"id":947531,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":1669,"kind":"person","name":"Cavanagh Michael J","position":1,"cik":"0001304481","reported_name":"Cavanagh Michael J","relationship":{"director":true,"officer":true,"officer_title":"Co-CEO"}}],"security":"Phantom Stock","published_at":"2026-01-06T21:17:49.000Z","date":"2026-01-02","kind":"other","planned":false,"acquired":false,"shares":48439.33,"price":29.54,"value":1430897.8082,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each share of phantom stock represents the economic equivalent to one share of Class A common stock.  Phantom shares that have been deferred under our deferred compensation plans may be transferred into alternative investments under the terms of our deferred compensation plans and settle in cash."},{"field":"shares","element":"transactionShares","label":"F2","text":"Reflects the cash settlement of shares of phantom stock on the scheduled distribution date under, and in accordance with the terms of, our deferred compensation plans."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Each share of phantom stock represents the economic equivalent to one share of Class A common stock.  Phantom shares that have been deferred under our deferred compensation plans may be transferred into alternative investments under the terms of our deferred compensation plans and settle in cash."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Each share of phantom stock represents the economic equivalent to one share of Class A common stock.  Phantom shares that have been deferred under our deferred compensation plans may be transferred into alternative investments under the terms of our deferred compensation plans and settle in cash."}],"balance_after":359867.289,"derivative":{"underlying":"Class A Common Stock","underlying_shares":48439.33},"source":{"system":"sec-edgar","filing":"0001225208-26-000361","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1166691/000122520826000361/doc4.xml","form_type":"4"}},{"id":1072508,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":1669,"kind":"person","name":"Cavanagh Michael J","position":1,"cik":"0001304481","reported_name":"Cavanagh Michael J","relationship":{"officer":true,"officer_title":"President"}}],"security":"Option to Purchase","published_at":"2025-08-07T20:12:01.000Z","date":"2025-08-05","kind":"gift","planned":false,"acquired":true,"shares":480400,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"By Trust"},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"The options were granted on March 15, 2019 and become exercisable as follows: 30% becomes exercisable on the 2nd anniversary of the date of grant; an additional 15% on each of the 3rd, 4th and 5th anniversaries of the date of grant; and an additional 5% on each of the 6th, 7th, 8th, 9th and 9.5th anniversaries of the date of grant."}],"balance_after":480400,"derivative":{"exercise_price":40.47,"expiration_date":"2029-03-14","underlying":"Class A Common Stock","underlying_shares":480400},"source":{"system":"sec-edgar","filing":"0001225208-25-007128","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/1166691/000122520825007128/doc4.xml","form_type":"4"}},{"id":1072507,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":1669,"kind":"person","name":"Cavanagh Michael J","position":1,"cik":"0001304481","reported_name":"Cavanagh Michael J","relationship":{"officer":true,"officer_title":"President"}}],"security":"Option to Purchase","published_at":"2025-08-07T20:12:01.000Z","date":"2025-08-05","kind":"gift","planned":false,"acquired":true,"shares":809775,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"By Trust"},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"The options were granted on March 2, 2020 and become exercisable as follows: 30% becomes exercisable on the 2nd anniversary of the date of grant; an additional 15% on each of the 3rd, 4th and 5th anniversaries of the date of grant; and an additional 5% on each of the 6th, 7th, 8th, 9th and 9.5th anniversaries of the date of grant."}],"balance_after":809775,"derivative":{"exercise_price":42.52,"expiration_date":"2030-03-01","underlying":"Class A Common Stock","underlying_shares":809775},"source":{"system":"sec-edgar","filing":"0001225208-25-007128","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1166691/000122520825007128/doc4.xml","form_type":"4"}},{"id":1072506,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":1669,"kind":"person","name":"Cavanagh Michael J","position":1,"cik":"0001304481","reported_name":"Cavanagh Michael J","relationship":{"officer":true,"officer_title":"President"}}],"security":"Option to Purchase","published_at":"2025-08-07T20:12:01.000Z","date":"2025-08-05","kind":"gift","planned":false,"acquired":true,"shares":430422,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"By Trust"},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The options were granted on March 1, 2022, and become exercisable as follows: 20% vest on the 1st, 2nd, 3rd, 4th and 5th anniversaries of the date of the grant."}],"balance_after":430422,"derivative":{"exercise_price":46.39,"expiration_date":"2032-02-29","underlying":"Class A Common Stock","underlying_shares":430422},"source":{"system":"sec-edgar","filing":"0001225208-25-007128","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1166691/000122520825007128/doc4.xml","form_type":"4"}},{"id":1072505,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":1669,"kind":"person","name":"Cavanagh Michael J","position":1,"cik":"0001304481","reported_name":"Cavanagh Michael J","relationship":{"officer":true,"officer_title":"President"}}],"security":"Option to Purchase","published_at":"2025-08-07T20:12:01.000Z","date":"2025-08-05","kind":"gift","planned":false,"acquired":true,"shares":524080,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"By Trust"},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"The options were granted on March 1, 2021 and become exercisable as follows: 40% become exercisable on the 2nd anniversary of the date of the grant and an additional 20% on each of the 3rd, 4th and 5th anniversaries of the date of the grant."}],"balance_after":524080,"derivative":{"exercise_price":54.45,"expiration_date":"2031-02-28","underlying":"Class A Common Stock","underlying_shares":524080},"source":{"system":"sec-edgar","filing":"0001225208-25-007128","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1166691/000122520825007128/doc4.xml","form_type":"4"}},{"id":1072504,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":1669,"kind":"person","name":"Cavanagh Michael J","position":1,"cik":"0001304481","reported_name":"Cavanagh Michael J","relationship":{"officer":true,"officer_title":"President"}}],"security":"Option to Purchase","published_at":"2025-08-07T20:12:01.000Z","date":"2025-08-05","kind":"gift","planned":false,"acquired":false,"shares":480400,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"The options were granted on March 15, 2019 and become exercisable as follows: 30% becomes exercisable on the 2nd anniversary of the date of grant; an additional 15% on each of the 3rd, 4th and 5th anniversaries of the date of grant; and an additional 5% on each of the 6th, 7th, 8th, 9th and 9.5th anniversaries of the date of grant."}],"balance_after":120100,"derivative":{"exercise_price":40.47,"expiration_date":"2029-03-14","underlying":"Class A Common Stock","underlying_shares":480400},"source":{"system":"sec-edgar","filing":"0001225208-25-007128","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1166691/000122520825007128/doc4.xml","form_type":"4"}},{"id":1072503,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":1669,"kind":"person","name":"Cavanagh Michael J","position":1,"cik":"0001304481","reported_name":"Cavanagh Michael J","relationship":{"officer":true,"officer_title":"President"}}],"security":"Option to Purchase","published_at":"2025-08-07T20:12:01.000Z","date":"2025-08-05","kind":"gift","planned":false,"acquired":false,"shares":809775,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"The options were granted on March 2, 2020 and become exercisable as follows: 30% becomes exercisable on the 2nd anniversary of the date of grant; an additional 15% on each of the 3rd, 4th and 5th anniversaries of the date of grant; and an additional 5% on each of the 6th, 7th, 8th, 9th and 9.5th anniversaries of the date of grant."}],"balance_after":269925,"derivative":{"exercise_price":42.52,"expiration_date":"2030-03-01","underlying":"Class A Common Stock","underlying_shares":809775},"source":{"system":"sec-edgar","filing":"0001225208-25-007128","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1166691/000122520825007128/doc4.xml","form_type":"4"}},{"id":1072502,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":1669,"kind":"person","name":"Cavanagh Michael J","position":1,"cik":"0001304481","reported_name":"Cavanagh Michael J","relationship":{"officer":true,"officer_title":"President"}}],"security":"Option to Purchase","published_at":"2025-08-07T20:12:01.000Z","date":"2025-08-05","kind":"gift","planned":false,"acquired":false,"shares":430422,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The options were granted on March 1, 2022, and become exercisable as follows: 20% vest on the 1st, 2nd, 3rd, 4th and 5th anniversaries of the date of the grant."}],"balance_after":286948,"derivative":{"exercise_price":46.39,"expiration_date":"2032-02-29","underlying":"Class A Common Stock","underlying_shares":430422},"source":{"system":"sec-edgar","filing":"0001225208-25-007128","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1166691/000122520825007128/doc4.xml","form_type":"4"}},{"id":1072501,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":1669,"kind":"person","name":"Cavanagh Michael J","position":1,"cik":"0001304481","reported_name":"Cavanagh Michael J","relationship":{"officer":true,"officer_title":"President"}}],"security":"Option to Purchase","published_at":"2025-08-07T20:12:01.000Z","date":"2025-08-05","kind":"gift","planned":false,"acquired":false,"shares":524080,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"The options were granted on March 1, 2021 and become exercisable as follows: 40% become exercisable on the 2nd anniversary of the date of the grant and an additional 20% on each of the 3rd, 4th and 5th anniversaries of the date of the grant."}],"balance_after":131020,"derivative":{"exercise_price":54.45,"expiration_date":"2031-02-28","underlying":"Class A Common Stock","underlying_shares":524080},"source":{"system":"sec-edgar","filing":"0001225208-25-007128","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1166691/000122520825007128/doc4.xml","form_type":"4"}},{"id":1156406,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":1669,"kind":"person","name":"Cavanagh Michael J","position":1,"cik":"0001304481","reported_name":"Cavanagh Michael J","relationship":{"officer":true,"officer_title":"President"}}],"security":"Class A Common Stock","published_at":"2025-05-07T20:17:30.000Z","date":"2025-05-06","kind":"gift","planned":false,"acquired":true,"shares":171000,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"By Spouse"},"balance_after":171000,"source":{"system":"sec-edgar","filing":"0001225208-25-004824","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1166691/000122520825004824/doc4.xml","form_type":"4"}},{"id":1156405,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":1669,"kind":"person","name":"Cavanagh Michael J","position":1,"cik":"0001304481","reported_name":"Cavanagh Michael J","relationship":{"officer":true,"officer_title":"President"}}],"security":"Class A Common Stock","published_at":"2025-05-07T20:17:30.000Z","date":"2025-05-06","kind":"gift","planned":false,"acquired":false,"shares":171000,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":38633,"source":{"system":"sec-edgar","filing":"0001225208-25-004824","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1166691/000122520825004824/doc4.xml","form_type":"4"}},{"id":1230495,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":1669,"kind":"person","name":"Cavanagh Michael J","position":1,"cik":"0001304481","reported_name":"Cavanagh Michael J","relationship":{"officer":true,"officer_title":"President"}}],"security":"Restricted Stock Units","published_at":"2025-03-04T22:36:10.000Z","date":"2025-03-02","kind":"exercise","planned":false,"acquired":false,"shares":82900,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"Each restricted stock unit represents a contingent right to receive one share of Class A Common Stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"These restricted stock units vest on the transaction date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"These restricted stock units vest on the transaction date."}],"balance_after":280695,"derivative":{"underlying":"Class A Common Stock","underlying_shares":82900},"source":{"system":"sec-edgar","filing":"0001225208-25-002846","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1166691/000122520825002846/doc4.xml","form_type":"4"}},{"id":1230494,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":1669,"kind":"person","name":"Cavanagh Michael J","position":1,"cik":"0001304481","reported_name":"Cavanagh Michael J","relationship":{"officer":true,"officer_title":"President"}}],"security":"Restricted Stock Units","published_at":"2025-03-04T22:36:10.000Z","date":"2025-03-01","kind":"exercise","planned":false,"acquired":false,"shares":31408,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"Each restricted stock unit represents a contingent right to receive one share of Class A Common Stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"These restricted stock units vest on the transaction date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"These restricted stock units vest on the transaction date."}],"balance_after":363595,"derivative":{"underlying":"Class A Common Stock","underlying_shares":31408},"source":{"system":"sec-edgar","filing":"0001225208-25-002846","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1166691/000122520825002846/doc4.xml","form_type":"4"}},{"id":1230493,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":1669,"kind":"person","name":"Cavanagh Michael J","position":1,"cik":"0001304481","reported_name":"Cavanagh Michael J","relationship":{"officer":true,"officer_title":"President"}}],"security":"Class A Common Stock","published_at":"2025-03-04T22:36:10.000Z","date":"2025-03-02","kind":"tax_withholding","planned":false,"acquired":false,"shares":40425,"price":35.88,"value":1450449.0,"ownership":{"direct":true},"balance_after":209633,"source":{"system":"sec-edgar","filing":"0001225208-25-002846","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1166691/000122520825002846/doc4.xml","form_type":"4"}},{"id":1230492,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":1669,"kind":"person","name":"Cavanagh Michael J","position":1,"cik":"0001304481","reported_name":"Cavanagh Michael J","relationship":{"officer":true,"officer_title":"President"}}],"security":"Class A Common Stock","published_at":"2025-03-04T22:36:10.000Z","date":"2025-03-02","kind":"exercise","planned":false,"acquired":true,"shares":82900,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price is $0.00."}],"balance_after":250058,"source":{"system":"sec-edgar","filing":"0001225208-25-002846","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1166691/000122520825002846/doc4.xml","form_type":"4"}},{"id":1230491,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":1669,"kind":"person","name":"Cavanagh Michael J","position":1,"cik":"0001304481","reported_name":"Cavanagh Michael J","relationship":{"officer":true,"officer_title":"President"}}],"security":"Class A Common Stock","published_at":"2025-03-04T22:36:10.000Z","date":"2025-03-01","kind":"tax_withholding","planned":false,"acquired":false,"shares":31408,"price":35.88,"value":1126919.04,"ownership":{"direct":true},"balance_after":167158,"source":{"system":"sec-edgar","filing":"0001225208-25-002846","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1166691/000122520825002846/doc4.xml","form_type":"4"}},{"id":1230490,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":1669,"kind":"person","name":"Cavanagh Michael J","position":1,"cik":"0001304481","reported_name":"Cavanagh Michael J","relationship":{"officer":true,"officer_title":"President"}}],"security":"Class A Common Stock","published_at":"2025-03-04T22:36:10.000Z","date":"2025-03-01","kind":"exercise","planned":false,"acquired":true,"shares":31408,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price is $0.00."}],"balance_after":198566,"source":{"system":"sec-edgar","filing":"0001225208-25-002846","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1166691/000122520825002846/doc4.xml","form_type":"4"}},{"id":1241233,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":1669,"kind":"person","name":"Cavanagh Michael J","position":1,"cik":"0001304481","reported_name":"Cavanagh Michael J","relationship":{"officer":true,"officer_title":"President"}}],"security":"Restricted Stock Units","published_at":"2025-02-27T21:19:33.000Z","date":"2025-02-25","kind":"grant","planned":false,"acquired":true,"shares":292227,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each restricted stock unit represents a contingent right to receive one share of Class A Common Stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The restricted stock units were granted subject to the achievement of performance conditions, which were attained on the transaction date. The restricted stock units vest 100% on the 3rd anniversary of the grant date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"The restricted stock units were granted subject to the achievement of performance conditions, which were attained on the transaction date. The restricted stock units vest 100% on the 3rd anniversary of the grant date."}],"balance_after":395003,"derivative":{"underlying":"Class A Common Stock","underlying_shares":292227},"source":{"system":"sec-edgar","filing":"0001225208-25-002537","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1166691/000122520825002537/doc4.xml","form_type":"4"}},{"id":1311362,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":1669,"kind":"person","name":"Cavanagh Michael J","position":1,"cik":"0001304481","reported_name":"Cavanagh Michael J","relationship":{"officer":true,"officer_title":"President"}}],"security":"Phantom Stock","published_at":"2025-01-06T21:14:23.000Z","date":"2025-01-02","kind":"other","planned":false,"acquired":false,"shares":46232.499,"price":37.42,"value":1730020.11258,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each share of phantom stock represents the economic equivalent to one share of Class A common stock.  Phantom shares have been deferred under our deferred compensation plans, may be transferred into alternative investments under the terms of our deferred compensation plans and settle in cash."},{"field":"shares","element":"transactionShares","label":"F2","text":"Reflects the cash settlement of shares of phantom stock on the scheduled distribution date under, and in accordance with the terms of, our deferred compensation plans."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Each share of phantom stock represents the economic equivalent to one share of Class A common stock.  Phantom shares have been deferred under our deferred compensation plans, may be transferred into alternative investments under the terms of our deferred compensation plans and settle in cash."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Each share of phantom stock represents the economic equivalent to one share of Class A common stock.  Phantom shares have been deferred under our deferred compensation plans, may be transferred into alternative investments under the terms of our deferred compensation plans and settle in cash."}],"balance_after":388521.823,"derivative":{"underlying":"Class A Common Stock","underlying_shares":46232.499},"source":{"system":"sec-edgar","filing":"0001225208-25-000334","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1166691/000122520825000334/doc4.xml","form_type":"4"}},{"id":1348539,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":1669,"kind":"person","name":"Cavanagh Michael J","position":1,"cik":"0001304481","reported_name":"Cavanagh Michael J","relationship":{"officer":true,"officer_title":"President"}}],"security":"Option to Purchase","published_at":"2024-11-29T18:19:07.000Z","date":"2024-11-26","kind":"exercise","planned":false,"acquired":false,"shares":321732,"price":28.32,"value":9111450.24,"ownership":{"direct":false,"nature":"By Trust"},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"With respect to the number of shares set forth in Column 7, this option is immediately exercisable."}],"balance_after":0,"derivative":{"exercise_price":28.32,"expiration_date":"2025-05-14","underlying":"Class A Common Stock","underlying_shares":321732},"source":{"system":"sec-edgar","filing":"0001225208-24-010267","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/1166691/000122520824010267/doc4.xml","form_type":"4"}},{"id":1348538,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":1669,"kind":"person","name":"Cavanagh Michael J","position":1,"cik":"0001304481","reported_name":"Cavanagh Michael J","relationship":{"officer":true,"officer_title":"President"}}],"security":"Option to Purchase","published_at":"2024-11-29T18:19:07.000Z","date":"2024-11-26","kind":"exercise","planned":false,"acquired":false,"shares":393228,"price":28.32,"value":11136216.96,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"With respect to the number of shares set forth in Column 7, this option is immediately exercisable."}],"balance_after":0,"derivative":{"exercise_price":28.32,"expiration_date":"2025-05-14","underlying":"Class A Common Stock","underlying_shares":393228},"source":{"system":"sec-edgar","filing":"0001225208-24-010267","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1166691/000122520824010267/doc4.xml","form_type":"4"}},{"id":1348537,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":1669,"kind":"person","name":"Cavanagh Michael J","position":1,"cik":"0001304481","reported_name":"Cavanagh Michael J","relationship":{"officer":true,"officer_title":"President"}}],"security":"Class A Common Stock","published_at":"2024-11-29T18:19:07.000Z","date":"2024-11-26","kind":"tax_withholding","planned":false,"acquired":false,"shares":214110,"price":42.555,"value":9111451.05,"ownership":{"direct":false,"nature":"By Trust"},"balance_after":238540,"source":{"system":"sec-edgar","filing":"0001225208-24-010267","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1166691/000122520824010267/doc4.xml","form_type":"4"}},{"id":1348536,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":1669,"kind":"person","name":"Cavanagh Michael J","position":1,"cik":"0001304481","reported_name":"Cavanagh Michael J","relationship":{"officer":true,"officer_title":"President"}}],"security":"Class A Common Stock","published_at":"2024-11-29T18:19:07.000Z","date":"2024-11-26","kind":"sale","planned":false,"acquired":false,"shares":107622,"price":42.5289,"value":4577045.2758,"ownership":{"direct":false,"nature":"By Trust"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"This transaction was executed in multiple trades at prices ranging from $42.510 to $42.565.  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 transactions were effected."}],"balance_after":452650,"source":{"system":"sec-edgar","filing":"0001225208-24-010267","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1166691/000122520824010267/doc4.xml","form_type":"4"}},{"id":1348535,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":1669,"kind":"person","name":"Cavanagh Michael J","position":1,"cik":"0001304481","reported_name":"Cavanagh Michael J","relationship":{"officer":true,"officer_title":"President"}}],"security":"Class A Common Stock","published_at":"2024-11-29T18:19:07.000Z","date":"2024-11-26","kind":"exercise","planned":false,"acquired":true,"shares":321732,"price":28.32,"value":9111450.24,"ownership":{"direct":false,"nature":"By Trust"},"balance_after":560272,"source":{"system":"sec-edgar","filing":"0001225208-24-010267","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1166691/000122520824010267/doc4.xml","form_type":"4"}},{"id":1348534,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":1669,"kind":"person","name":"Cavanagh Michael J","position":1,"cik":"0001304481","reported_name":"Cavanagh Michael J","relationship":{"officer":true,"officer_title":"President"}}],"security":"Class A Common Stock","published_at":"2024-11-29T18:19:07.000Z","date":"2024-11-26","kind":"tax_withholding","planned":false,"acquired":false,"shares":367691,"price":42.6001,"value":15663673.3691,"ownership":{"direct":true},"balance_after":167158,"source":{"system":"sec-edgar","filing":"0001225208-24-010267","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1166691/000122520824010267/doc4.xml","form_type":"4"}},{"id":1348533,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":1669,"kind":"person","name":"Cavanagh Michael J","position":1,"cik":"0001304481","reported_name":"Cavanagh Michael J","relationship":{"officer":true,"officer_title":"President"}}],"security":"Class A Common Stock","published_at":"2024-11-29T18:19:07.000Z","date":"2024-11-26","kind":"sale","planned":false,"acquired":false,"shares":25537,"price":42.5918,"value":1087666.7966,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"This transaction was executed in multiple trades at prices ranging from $42.590 to $42.601.  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 transactions were effected."}],"balance_after":534849,"source":{"system":"sec-edgar","filing":"0001225208-24-010267","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1166691/000122520824010267/doc4.xml","form_type":"4"}},{"id":1348532,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":1669,"kind":"person","name":"Cavanagh Michael J","position":1,"cik":"0001304481","reported_name":"Cavanagh Michael J","relationship":{"officer":true,"officer_title":"President"}}],"security":"Class A Common Stock","published_at":"2024-11-29T18:19:07.000Z","date":"2024-11-26","kind":"exercise","planned":false,"acquired":true,"shares":393228,"price":28.32,"value":11136216.96,"ownership":{"direct":true},"balance_after":560386,"source":{"system":"sec-edgar","filing":"0001225208-24-010267","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1166691/000122520824010267/doc4.xml","form_type":"4"}},{"id":1487267,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":1669,"kind":"person","name":"Cavanagh Michael J","position":1,"cik":"0001304481","reported_name":"Cavanagh Michael J","relationship":{"officer":true,"officer_title":"President"}}],"security":"Class A Common Stock","published_at":"2024-06-07T20:07:33.000Z","date":"2024-06-06","kind":"gift","planned":false,"acquired":false,"shares":10932,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":167158,"source":{"system":"sec-edgar","filing":"0001225208-24-006719","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1166691/000122520824006719/doc4.xml","form_type":"4"}},{"id":1569770,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":1669,"kind":"person","name":"Cavanagh Michael J","position":1,"cik":"0001304481","reported_name":"Cavanagh Michael J","relationship":{"officer":true,"officer_title":"President"}}],"security":"Restricted Stock Units","published_at":"2024-03-19T20:15:46.000Z","date":"2024-03-15","kind":"exercise","planned":false,"acquired":false,"shares":83400,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"Each restricted stock unit represents a contingent right to receive one share of Class A Common Stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"These restricted stock units vest on the transaction date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"These restricted stock units vest on the transaction date."}],"balance_after":102776,"derivative":{"underlying":"Class A Common Stock","underlying_shares":83400},"source":{"system":"sec-edgar","filing":"0001225208-24-004304","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1166691/000122520824004304/doc4.xml","form_type":"4"}},{"id":1569769,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":1669,"kind":"person","name":"Cavanagh Michael J","position":1,"cik":"0001304481","reported_name":"Cavanagh Michael J","relationship":{"officer":true,"officer_title":"President"}}],"security":"Class A Common Stock","published_at":"2024-03-19T20:15:46.000Z","date":"2024-03-15","kind":"tax_withholding","planned":false,"acquired":false,"shares":40002,"price":42.77,"value":1710885.54,"ownership":{"direct":true},"balance_after":178090,"source":{"system":"sec-edgar","filing":"0001225208-24-004304","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1166691/000122520824004304/doc4.xml","form_type":"4"}},{"id":1569768,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":1669,"kind":"person","name":"Cavanagh Michael J","position":1,"cik":"0001304481","reported_name":"Cavanagh Michael J","relationship":{"officer":true,"officer_title":"President"}}],"security":"Class A Common Stock","published_at":"2024-03-19T20:15:46.000Z","date":"2024-03-15","kind":"exercise","planned":false,"acquired":true,"shares":83400,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price is $0.00."}],"balance_after":218092,"source":{"system":"sec-edgar","filing":"0001225208-24-004304","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1166691/000122520824004304/doc4.xml","form_type":"4"}},{"id":1598032,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":1669,"kind":"person","name":"Cavanagh Michael J","position":1,"cik":"0001304481","reported_name":"Cavanagh Michael J","relationship":{"officer":true,"officer_title":"President"}}],"security":"Restricted Stock Units","published_at":"2024-03-06T00:55:11.000Z","date":"2024-03-02","kind":"exercise","planned":false,"acquired":false,"shares":31087,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F4","text":"Each restricted stock unit represents a contingent right to receive one share of Class A Common Stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"These restricted stock units vest on the transaction date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F5","text":"These restricted stock units vest on the transaction date."}],"balance_after":186176,"derivative":{"underlying":"Class A Common Stock","underlying_shares":31087},"source":{"system":"sec-edgar","filing":"0001225208-24-003754","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1166691/000122520824003754/doc4.xml","form_type":"4"}},{"id":1598031,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":1669,"kind":"person","name":"Cavanagh Michael J","position":1,"cik":"0001304481","reported_name":"Cavanagh Michael J","relationship":{"officer":true,"officer_title":"President"}}],"security":"Option to Purchase","published_at":"2024-03-06T00:55:11.000Z","date":"2024-03-01","kind":"grant","planned":false,"acquired":true,"shares":461015,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"The date of the grant was March 1, 2024, and the stock options vest as follows:  20% vests on the 1st, 2nd, 3rd, 4th and 5th anniversaries of the date of the grant."}],"balance_after":461015,"derivative":{"exercise_price":42.8,"expiration_date":"2034-02-28","underlying":"Class A Common Stock","underlying_shares":461015},"source":{"system":"sec-edgar","filing":"0001225208-24-003754","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1166691/000122520824003754/doc4.xml","form_type":"4"}},{"id":1598030,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":1669,"kind":"person","name":"Cavanagh Michael J","position":1,"cik":"0001304481","reported_name":"Cavanagh Michael J","relationship":{"officer":true,"officer_title":"President"}}],"security":"Class A Common Stock","published_at":"2024-03-06T00:55:11.000Z","date":"2024-03-04","kind":"tax_withholding","planned":false,"acquired":false,"shares":109664,"price":42.8,"value":4693619.2,"ownership":{"direct":true},"balance_after":134692,"source":{"system":"sec-edgar","filing":"0001225208-24-003754","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1166691/000122520824003754/doc4.xml","form_type":"4"}},{"id":1598029,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":1669,"kind":"person","name":"Cavanagh Michael J","position":1,"cik":"0001304481","reported_name":"Cavanagh Michael J","relationship":{"officer":true,"officer_title":"President"}}],"security":"Class A Common Stock","published_at":"2024-03-06T00:55:11.000Z","date":"2024-03-04","kind":"grant","planned":false,"acquired":true,"shares":228202,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"date","element":"transactionDate","label":"F2","text":"Reflects performance-based restricted stock units that vested 100% on the 3rd anniversary of the grant date and were subject to the achievement of performance conditions that were attained on the transaction date."}],"balance_after":244356,"source":{"system":"sec-edgar","filing":"0001225208-24-003754","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1166691/000122520824003754/doc4.xml","form_type":"4"}},{"id":1598028,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":1669,"kind":"person","name":"Cavanagh Michael J","position":1,"cik":"0001304481","reported_name":"Cavanagh Michael J","relationship":{"officer":true,"officer_title":"President"}}],"security":"Class A Common Stock","published_at":"2024-03-06T00:55:11.000Z","date":"2024-03-02","kind":"tax_withholding","planned":false,"acquired":false,"shares":14933,"price":42.8,"value":639132.4,"ownership":{"direct":true},"balance_after":16154,"source":{"system":"sec-edgar","filing":"0001225208-24-003754","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1166691/000122520824003754/doc4.xml","form_type":"4"}},{"id":1598027,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":1669,"kind":"person","name":"Cavanagh Michael J","position":1,"cik":"0001304481","reported_name":"Cavanagh Michael J","relationship":{"officer":true,"officer_title":"President"}}],"security":"Class A Common Stock","published_at":"2024-03-06T00:55:11.000Z","date":"2024-03-02","kind":"exercise","planned":false,"acquired":true,"shares":31087,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price is $0.00."}],"balance_after":31087,"source":{"system":"sec-edgar","filing":"0001225208-24-003754","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1166691/000122520824003754/doc4.xml","form_type":"4"}},{"id":1666809,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":1669,"kind":"person","name":"Cavanagh Michael J","position":1,"cik":"0001304481","reported_name":"Cavanagh Michael J","relationship":{"officer":true,"officer_title":"President"}}],"security":"Class A Common Stock","published_at":"2024-01-30T21:10:59.000Z","date":"2024-01-29","kind":"sale","planned":false,"acquired":false,"shares":114749,"price":46.1023,"value":5290192.8227,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"This transaction was executed in multiple trades at prices ranging from $45.935 to $46.355.  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 transactions were effected."}],"balance_after":0,"source":{"system":"sec-edgar","filing":"0001225208-24-001298","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1166691/000122520824001298/doc4.xml","form_type":"4"}},{"id":1688531,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":1669,"kind":"person","name":"Cavanagh Michael J","position":1,"cik":"0001304481","reported_name":"Cavanagh Michael J","relationship":{"officer":true,"officer_title":"President"}}],"security":"Phantom Stock","published_at":"2024-01-04T21:17:44.000Z","date":"2024-01-02","kind":"other","planned":false,"acquired":false,"shares":21165.929,"price":43.67,"value":924316.11943,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each share of phantom stock represents the economic equivalent to one share of Class A common stock.  Phantom shares have been deferred under our deferred compensation plans, may be transferred into alternative investments under the terms of our deferred compensation plans and settle in cash."},{"field":"shares","element":"transactionShares","label":"F2","text":"Reflects the cash settlement of shares of phantom stock on the scheduled distribution date under, and in accordance with the terms of, our deferred compensation plans."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Each share of phantom stock represents the economic equivalent to one share of Class A common stock.  Phantom shares have been deferred under our deferred compensation plans, may be transferred into alternative investments under the terms of our deferred compensation plans and settle in cash."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Each share of phantom stock represents the economic equivalent to one share of Class A common stock.  Phantom shares have been deferred under our deferred compensation plans, may be transferred into alternative investments under the terms of our deferred compensation plans and settle in cash."}],"balance_after":426358.252,"derivative":{"underlying":"Class A Common Stock","underlying_shares":21165.929},"source":{"system":"sec-edgar","filing":"0001225208-24-000384","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1166691/000122520824000384/doc4.xml","form_type":"4"}},{"id":1856161,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":1669,"kind":"person","name":"Cavanagh Michael J","position":1,"cik":"0001304481","reported_name":"Cavanagh Michael J","relationship":{"officer":true,"officer_title":"President"}}],"security":"Class A Common Stock","published_at":"2023-06-14T20:11:08.000Z","date":"2023-06-13","kind":"gift","planned":false,"acquired":false,"shares":14789,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":123516.066,"source":{"system":"sec-edgar","filing":"0001225208-23-006816","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1166691/000122520823006816/doc4.xml","form_type":"4"}},{"id":1856160,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":1669,"kind":"person","name":"Cavanagh Michael J","position":1,"cik":"0001304481","reported_name":"Cavanagh Michael J","relationship":{"officer":true,"officer_title":"President"}}],"security":"Class A Common Stock","published_at":"2023-06-14T20:11:08.000Z","date":"2023-06-12","kind":"gift","planned":false,"acquired":false,"shares":883,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":138305.066,"source":{"system":"sec-edgar","filing":"0001225208-23-006816","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1166691/000122520823006816/doc4.xml","form_type":"4"}},{"id":1947742,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":1669,"kind":"person","name":"Cavanagh Michael J","position":1,"cik":"0001304481","reported_name":"Cavanagh Michael J","relationship":{"officer":true,"officer_title":"President"}}],"security":"Restricted Stock Units","published_at":"2023-03-17T20:31:28.000Z","date":"2023-03-16","kind":"exercise","acquired":false,"shares":55800,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"Each restricted stock unit represents a contingent right to receive one share of Class A Common Stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"These restricted stock units vest on the transaction date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"These restricted stock units vest on the transaction date."}],"balance_after":217263,"derivative":{"underlying":"Class A Common Stock","underlying_shares":55800},"source":{"system":"sec-edgar","filing":"0001225208-23-004081","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1166691/000122520823004081/doc4.xml","form_type":"4"}},{"id":1947741,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":1669,"kind":"person","name":"Cavanagh Michael J","position":1,"cik":"0001304481","reported_name":"Cavanagh Michael J","relationship":{"officer":true,"officer_title":"President"}}],"security":"Restricted Stock Units","published_at":"2023-03-17T20:31:28.000Z","date":"2023-03-15","kind":"exercise","acquired":false,"shares":31275,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"Each restricted stock unit represents a contingent right to receive one share of Class A Common Stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"These restricted stock units vest on the transaction date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"These restricted stock units vest on the transaction date."}],"balance_after":273063,"derivative":{"underlying":"Class A Common Stock","underlying_shares":31275},"source":{"system":"sec-edgar","filing":"0001225208-23-004081","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1166691/000122520823004081/doc4.xml","form_type":"4"}},{"id":1947740,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":1669,"kind":"person","name":"Cavanagh Michael J","position":1,"cik":"0001304481","reported_name":"Cavanagh Michael J","relationship":{"officer":true,"officer_title":"President"}}],"security":"Class A Common Stock","published_at":"2023-03-17T20:31:28.000Z","date":"2023-03-16","kind":"tax_withholding","acquired":false,"shares":27233,"price":36.24,"value":986923.92,"ownership":{"direct":true},"balance_after":135709.604,"source":{"system":"sec-edgar","filing":"0001225208-23-004081","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1166691/000122520823004081/doc4.xml","form_type":"4"}},{"id":1947739,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":1669,"kind":"person","name":"Cavanagh Michael J","position":1,"cik":"0001304481","reported_name":"Cavanagh Michael J","relationship":{"officer":true,"officer_title":"President"}}],"security":"Class A Common Stock","published_at":"2023-03-17T20:31:28.000Z","date":"2023-03-16","kind":"exercise","acquired":true,"shares":55800,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price is $0.00."}],"balance_after":162942.604,"source":{"system":"sec-edgar","filing":"0001225208-23-004081","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1166691/000122520823004081/doc4.xml","form_type":"4"}},{"id":1947738,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":1669,"kind":"person","name":"Cavanagh Michael J","position":1,"cik":"0001304481","reported_name":"Cavanagh Michael J","relationship":{"officer":true,"officer_title":"President"}}],"security":"Class A Common Stock","published_at":"2023-03-17T20:31:28.000Z","date":"2023-03-15","kind":"tax_withholding","acquired":false,"shares":15264,"price":35.89,"value":547824.96,"ownership":{"direct":true},"balance_after":107142.604,"source":{"system":"sec-edgar","filing":"0001225208-23-004081","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1166691/000122520823004081/doc4.xml","form_type":"4"}},{"id":1947737,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":1669,"kind":"person","name":"Cavanagh Michael J","position":1,"cik":"0001304481","reported_name":"Cavanagh Michael J","relationship":{"officer":true,"officer_title":"President"}}],"security":"Class A Common Stock","published_at":"2023-03-17T20:31:28.000Z","date":"2023-03-15","kind":"exercise","acquired":true,"shares":31275,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price is $0.00."}],"balance_after":122406.604,"source":{"system":"sec-edgar","filing":"0001225208-23-004081","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1166691/000122520823004081/doc4.xml","form_type":"4"}},{"id":1974977,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":1669,"kind":"person","name":"Cavanagh Michael J","position":1,"cik":"0001304481","reported_name":"Cavanagh Michael J","relationship":{"officer":true,"officer_title":"President"}}],"security":"Restricted Stock Units","published_at":"2023-03-03T21:26:36.000Z","date":"2023-03-02","kind":"exercise","acquired":false,"shares":31087,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Each restricted stock unit represents a contingent right to receive one share of Class A Common Stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"These restricted stock units vest on the transaction date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"These restricted stock units vest on the transaction date."}],"balance_after":304338,"derivative":{"underlying":"Class A Common Stock","underlying_shares":31087},"source":{"system":"sec-edgar","filing":"0001225208-23-003295","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1166691/000122520823003295/doc4.xml","form_type":"4"}},{"id":1974976,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":1669,"kind":"person","name":"Cavanagh Michael J","position":1,"cik":"0001304481","reported_name":"Cavanagh Michael J","relationship":{"officer":true,"officer_title":"President"}}],"security":"Option to Purchase","published_at":"2023-03-03T21:26:36.000Z","date":"2023-03-01","kind":"grant","acquired":true,"shares":840340,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The date of the grant was March 1, 2023, and the stock options vest as follows:  20% vest on the 1st, 2nd, 3rd, 4th and 5th anniversaries of the date of the grant."}],"balance_after":840340,"derivative":{"exercise_price":36.63,"expiration_date":"2033-02-28","underlying":"Class A Common Stock","underlying_shares":840340},"source":{"system":"sec-edgar","filing":"0001225208-23-003295","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1166691/000122520823003295/doc4.xml","form_type":"4"}},{"id":1974975,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":1669,"kind":"person","name":"Cavanagh Michael J","position":1,"cik":"0001304481","reported_name":"Cavanagh Michael J","relationship":{"officer":true,"officer_title":"President"}}],"security":"Class A Common Stock","published_at":"2023-03-03T21:26:36.000Z","date":"2023-03-02","kind":"tax_withholding","acquired":false,"shares":15172,"price":36.95,"value":560605.4,"ownership":{"direct":true},"balance_after":91131.604,"source":{"system":"sec-edgar","filing":"0001225208-23-003295","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1166691/000122520823003295/doc4.xml","form_type":"4"}},{"id":1974974,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":1669,"kind":"person","name":"Cavanagh Michael J","position":1,"cik":"0001304481","reported_name":"Cavanagh Michael J","relationship":{"officer":true,"officer_title":"President"}}],"security":"Class A Common Stock","published_at":"2023-03-03T21:26:36.000Z","date":"2023-03-02","kind":"exercise","acquired":true,"shares":31087,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price is $0.00."}],"balance_after":106303.604,"source":{"system":"sec-edgar","filing":"0001225208-23-003295","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1166691/000122520823003295/doc4.xml","form_type":"4"}},{"id":2325054,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":1669,"kind":"person","name":"Cavanagh Michael J","position":1,"cik":"0001304481","reported_name":"Cavanagh Michael J","relationship":{"officer":true,"officer_title":"CFO"}}],"security":"Restricted Stock Units","published_at":"2022-03-18T20:14:00.000Z","date":"2022-03-17","kind":"exercise","acquired":false,"shares":53400,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"Each restricted stock unit represents a contigent right to receive one share of Class A Common Stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"These restricted stock units vest on the transaction date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"These restricted stock units vest on the transaction date."}],"balance_after":335425,"derivative":{"underlying":"Class A Common Stock","underlying_shares":53400},"source":{"system":"sec-edgar","filing":"0001225208-22-004888","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1166691/000122520822004888/doc4.xml","form_type":"4"}},{"id":2325053,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":1669,"kind":"person","name":"Cavanagh Michael J","position":1,"cik":"0001304481","reported_name":"Cavanagh Michael J","relationship":{"officer":true,"officer_title":"CFO"}}],"security":"Class A Common Stock","published_at":"2022-03-18T20:14:00.000Z","date":"2022-03-17","kind":"tax_withholding","acquired":false,"shares":26081,"price":46.48,"value":1212244.88,"ownership":{"direct":true},"balance_after":72628,"source":{"system":"sec-edgar","filing":"0001225208-22-004888","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1166691/000122520822004888/doc4.xml","form_type":"4"}},{"id":2325052,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":1669,"kind":"person","name":"Cavanagh Michael J","position":1,"cik":"0001304481","reported_name":"Cavanagh Michael J","relationship":{"officer":true,"officer_title":"CFO"}}],"security":"Class A Common Stock","published_at":"2022-03-18T20:14:00.000Z","date":"2022-03-17","kind":"exercise","acquired":true,"shares":53400,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price is $0.00."}],"balance_after":98709,"source":{"system":"sec-edgar","filing":"0001225208-22-004888","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1166691/000122520822004888/doc4.xml","form_type":"4"}},{"id":2328239,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":1669,"kind":"person","name":"Cavanagh Michael J","position":1,"cik":"0001304481","reported_name":"Cavanagh Michael J","relationship":{"officer":true,"officer_title":"CFO"}}],"security":"Restricted Stock Units","published_at":"2022-03-17T20:28:32.000Z","date":"2022-03-16","kind":"exercise","acquired":false,"shares":20925,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"Each restricted stock unit represents a contigent right to receive one share of Class A Common Stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"These restricted stock units vest on the transaction date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"These restricted stock units vest on the transaction date."}],"balance_after":388825,"derivative":{"underlying":"Class A Common Stock","underlying_shares":20925},"source":{"system":"sec-edgar","filing":"0001225208-22-004860","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1166691/000122520822004860/doc4.xml","form_type":"4"}},{"id":2328238,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":1669,"kind":"person","name":"Cavanagh Michael J","position":1,"cik":"0001304481","reported_name":"Cavanagh Michael J","relationship":{"officer":true,"officer_title":"CFO"}}],"security":"Restricted Stock Units","published_at":"2022-03-17T20:28:32.000Z","date":"2022-03-15","kind":"exercise","acquired":false,"shares":31275,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"Each restricted stock unit represents a contigent right to receive one share of Class A Common Stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"These restricted stock units vest on the transaction date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"These restricted stock units vest on the transaction date."}],"balance_after":27913,"derivative":{"exercise_price":0,"underlying":"Class A Common Stock","underlying_shares":31275},"source":{"system":"sec-edgar","filing":"0001225208-22-004860","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1166691/000122520822004860/doc4.xml","form_type":"4"}},{"id":2328237,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":1669,"kind":"person","name":"Cavanagh Michael J","position":1,"cik":"0001304481","reported_name":"Cavanagh Michael J","relationship":{"officer":true,"officer_title":"CFO"}}],"security":"Class A Common Stock","published_at":"2022-03-17T20:28:32.000Z","date":"2022-03-16","kind":"tax_withholding","acquired":false,"shares":10220,"price":46.23,"value":472470.6,"ownership":{"direct":true},"balance_after":45309,"source":{"system":"sec-edgar","filing":"0001225208-22-004860","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1166691/000122520822004860/doc4.xml","form_type":"4"}},{"id":2328236,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":1669,"kind":"person","name":"Cavanagh Michael J","position":1,"cik":"0001304481","reported_name":"Cavanagh Michael J","relationship":{"officer":true,"officer_title":"CFO"}}],"security":"Class A Common Stock","published_at":"2022-03-17T20:28:32.000Z","date":"2022-03-16","kind":"exercise","acquired":true,"shares":20925,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price is $0.00."}],"balance_after":55529,"source":{"system":"sec-edgar","filing":"0001225208-22-004860","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1166691/000122520822004860/doc4.xml","form_type":"4"}},{"id":2328235,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":1669,"kind":"person","name":"Cavanagh Michael J","position":1,"cik":"0001304481","reported_name":"Cavanagh Michael J","relationship":{"officer":true,"officer_title":"CFO"}}],"security":"Class A Common Stock","published_at":"2022-03-17T20:28:32.000Z","date":"2022-03-15","kind":"tax_withholding","acquired":false,"shares":15275,"price":45.54,"value":695623.5,"ownership":{"direct":true},"balance_after":34604,"source":{"system":"sec-edgar","filing":"0001225208-22-004860","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1166691/000122520822004860/doc4.xml","form_type":"4"}},{"id":2328234,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":1669,"kind":"person","name":"Cavanagh Michael J","position":1,"cik":"0001304481","reported_name":"Cavanagh Michael J","relationship":{"officer":true,"officer_title":"CFO"}}],"security":"Class A Common Stock","published_at":"2022-03-17T20:28:32.000Z","date":"2022-03-15","kind":"exercise","acquired":true,"shares":31275,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":49879,"source":{"system":"sec-edgar","filing":"0001225208-22-004860","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1166691/000122520822004860/doc4.xml","form_type":"4"}},{"id":2355572,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":1669,"kind":"person","name":"Cavanagh Michael J","position":1,"cik":"0001304481","reported_name":"Cavanagh Michael J","relationship":{"officer":true,"officer_title":"CFO"}}],"security":"Restricted Stock Units","published_at":"2022-03-03T21:25:57.000Z","date":"2022-03-02","kind":"exercise","acquired":false,"shares":31087,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"Each restricted stock unit represents a contigent right to receive one share of Class A Common Stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"These restricted stock units vest on the transaction date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"These restricted stock units vest on the transaction date."}],"balance_after":59188,"derivative":{"exercise_price":0,"underlying":"Class A Common Stock","underlying_shares":31087},"source":{"system":"sec-edgar","filing":"0001225208-22-004114","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1166691/000122520822004114/doc4.xml","form_type":"4"}},{"id":2355571,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":1669,"kind":"person","name":"Cavanagh Michael J","position":1,"cik":"0001304481","reported_name":"Cavanagh Michael J","relationship":{"officer":true,"officer_title":"CFO"}}],"security":"Option to Purchase","published_at":"2022-03-03T21:25:57.000Z","date":"2022-03-01","kind":"grant","acquired":true,"shares":717370,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"The date of the grant was March 1, 2022, and the stock options vest as follows:  20% vest on the 1st, 2nd, 3rd, 4th and 5th anniversaries of the date of the grant."}],"balance_after":717370,"derivative":{"exercise_price":46.39,"expiration_date":"2032-02-29","underlying":"Class A Common Stock","underlying_shares":717370},"source":{"system":"sec-edgar","filing":"0001225208-22-004114","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1166691/000122520822004114/doc4.xml","form_type":"4"}},{"id":2355570,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":1669,"kind":"person","name":"Cavanagh Michael J","position":1,"cik":"0001304481","reported_name":"Cavanagh Michael J","relationship":{"officer":true,"officer_title":"CFO"}}],"security":"Class A Common Stock","published_at":"2022-03-03T21:25:57.000Z","date":"2022-03-02","kind":"tax_withholding","acquired":false,"shares":15183,"price":46.38,"value":704187.54,"ownership":{"direct":true},"balance_after":18604,"source":{"system":"sec-edgar","filing":"0001225208-22-004114","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1166691/000122520822004114/doc4.xml","form_type":"4"}},{"id":2355569,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":1669,"kind":"person","name":"Cavanagh Michael J","position":1,"cik":"0001304481","reported_name":"Cavanagh Michael J","relationship":{"officer":true,"officer_title":"CFO"}}],"security":"Class A Common Stock","published_at":"2022-03-03T21:25:57.000Z","date":"2022-03-02","kind":"exercise","acquired":true,"shares":31087,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":33787,"source":{"system":"sec-edgar","filing":"0001225208-22-004114","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1166691/000122520822004114/doc4.xml","form_type":"4"}},{"id":2375258,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":1669,"kind":"person","name":"Cavanagh Michael J","position":1,"cik":"0001304481","reported_name":"Cavanagh Michael J","relationship":{"officer":true,"officer_title":"CFO"}}],"security":"Restricted Stock Units","published_at":"2022-02-24T21:25:23.000Z","date":"2022-02-22","kind":"grant","acquired":true,"shares":220088,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each restricted stock unit represents a contigent right to receive one share of Class A Common Stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The restricted stock units were granted subject to satisfaction of a performance condition.  Based on achievement of the performance condition, the restricted stock units vest in installments of 15%, 15%, 15%, 15% and 40% on the 13th-month, 2nd, 3rd, 4th, and 5th anniversaries of the date of the respective grant."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"The restricted stock units were granted subject to satisfaction of a performance condition.  Based on achievement of the performance condition, the restricted stock units vest in installments of 15%, 15%, 15%, 15% and 40% on the 13th-month, 2nd, 3rd, 4th, and 5th anniversaries of the date of the respective grant."}],"balance_after":409750,"derivative":{"underlying":"Class A Common Stock","underlying_shares":220088},"source":{"system":"sec-edgar","filing":"0001225208-22-003305","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1166691/000122520822003305/doc4.xml","form_type":"4"}},{"id":2379152,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":1669,"kind":"person","name":"Cavanagh Michael J","position":1,"cik":"0001304481","reported_name":"Cavanagh Michael J","relationship":{"officer":true,"officer_title":"CFO"}}],"security":"Phantom Stock","published_at":"2022-02-23T21:17:57.000Z","date":"2022-02-18","kind":"other","acquired":true,"shares":225432.92,"price":46.64,"value":10514191.3888,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each share of phantom stock represents the economic equivalent to one share of Class A common stock.  Phantom shares have been deferred under our deferred compensation plans, will settle in cash and may be transferred into alternative investments under the terms of our deferred compensation plans."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The Reporting Person has elected to notionally reinvest previously deferred compensation into another deferred compensation plan investment."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"The Reporting Person has elected to notionally reinvest previously deferred compensation into another deferred compensation plan investment."}],"balance_after":426160.992,"derivative":{"underlying":"Class A Common Stock","underlying_shares":225432.92},"source":{"system":"sec-edgar","filing":"0001225208-22-003084","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1166691/000122520822003084/doc4.xml","form_type":"4"}},{"id":2404735,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":1669,"kind":"person","name":"Cavanagh Michael J","position":1,"cik":"0001304481","reported_name":"Cavanagh Michael J","relationship":{"officer":true,"officer_title":"CFO"}}],"security":"Class A Common Stock","published_at":"2022-02-10T21:36:41.000Z","date":"2021-10-15","kind":"gift","acquired":true,"shares":138540,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"By Trust"},"balance_after":238540,"source":{"system":"sec-edgar","filing":"0001225208-22-001813","document":"doc5.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1166691/000122520822001813/doc5.xml","form_type":"5"}},{"id":2404734,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":1669,"kind":"person","name":"Cavanagh Michael J","position":1,"cik":"0001304481","reported_name":"Cavanagh Michael J","relationship":{"officer":true,"officer_title":"CFO"}}],"security":"Class A Common Stock","published_at":"2022-02-10T21:36:41.000Z","date":"2021-10-15","kind":"gift","acquired":false,"shares":138540,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"By Spouse"},"balance_after":0,"source":{"system":"sec-edgar","filing":"0001225208-22-001813","document":"doc5.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1166691/000122520822001813/doc5.xml","form_type":"5"}},{"id":2404733,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":1669,"kind":"person","name":"Cavanagh Michael J","position":1,"cik":"0001304481","reported_name":"Cavanagh Michael J","relationship":{"officer":true,"officer_title":"CFO"}}],"security":"Class A Common Stock","published_at":"2022-02-10T21:36:41.000Z","date":"2021-03-24","kind":"gift","acquired":true,"shares":9474,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"By Spouse"},"balance_after":138540,"source":{"system":"sec-edgar","filing":"0001225208-22-001813","document":"doc5.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1166691/000122520822001813/doc5.xml","form_type":"5"}},{"id":2404732,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":1669,"kind":"person","name":"Cavanagh Michael J","position":1,"cik":"0001304481","reported_name":"Cavanagh Michael J","relationship":{"officer":true,"officer_title":"CFO"}}],"security":"Class A Common Stock","published_at":"2022-02-10T21:36:41.000Z","date":"2021-03-17","kind":"gift","acquired":true,"shares":129066,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"By Spouse"},"balance_after":129066,"source":{"system":"sec-edgar","filing":"0001225208-22-001813","document":"doc5.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1166691/000122520822001813/doc5.xml","form_type":"5"}},{"id":2404731,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":1669,"kind":"person","name":"Cavanagh Michael J","position":1,"cik":"0001304481","reported_name":"Cavanagh Michael J","relationship":{"officer":true,"officer_title":"CFO"}}],"security":"Class A Common Stock","published_at":"2022-02-10T21:36:41.000Z","date":"2021-03-24","kind":"gift","acquired":false,"shares":9474,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":2700,"source":{"system":"sec-edgar","filing":"0001225208-22-001813","document":"doc5.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1166691/000122520822001813/doc5.xml","form_type":"5"}},{"id":2404730,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":1669,"kind":"person","name":"Cavanagh Michael J","position":1,"cik":"0001304481","reported_name":"Cavanagh Michael J","relationship":{"officer":true,"officer_title":"CFO"}}],"security":"Class A Common Stock","published_at":"2022-02-10T21:36:41.000Z","date":"2021-03-17","kind":"gift","acquired":false,"shares":129066,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":12174,"source":{"system":"sec-edgar","filing":"0001225208-22-001813","document":"doc5.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1166691/000122520822001813/doc5.xml","form_type":"5"}},{"id":2404729,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":1669,"kind":"person","name":"Cavanagh Michael J","position":1,"cik":"0001304481","reported_name":"Cavanagh Michael J","relationship":{"officer":true,"officer_title":"CFO"}}],"security":"Class A Common Stock","published_at":"2022-02-10T21:36:41.000Z","date":"2021-02-26","kind":"gift","acquired":false,"shares":760,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":109478,"source":{"system":"sec-edgar","filing":"0001225208-22-001813","document":"doc5.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1166691/000122520822001813/doc5.xml","form_type":"5"}},{"id":2529373,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":1669,"kind":"person","name":"Cavanagh Michael J","position":1,"cik":"0001304481","reported_name":"Cavanagh Michael J","relationship":{"officer":true,"officer_title":"CFO"}}],"security":"Phantom Stock","published_at":"2021-11-02T20:28:33.000Z","date":"2021-10-29","kind":"other","acquired":true,"shares":199697.852,"price":51.43,"value":10270460.52836,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each share of phantom stock represents the economic equivalent to one share of Class A common stock.  Phantom shares have been deferred under our deferred compensation plans, will settle in cash and may be transferred into alternative investments under the terms of our deferred compensation plans."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The Reporting Person has elected to notionally reinvest previously deferred compensation into another deferred compensation plan investment."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"The Reporting Person has elected to notionally reinvest previously deferred compensation into another deferred compensation plan investment."}],"balance_after":199697.852,"derivative":{"underlying":"Class A Common Stock","underlying_shares":199697.852},"source":{"system":"sec-edgar","filing":"0001225208-21-013447","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1166691/000122520821013447/doc4.xml","form_type":"4"}},{"id":2777803,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":1669,"kind":"person","name":"Cavanagh Michael J","position":1,"cik":"0001304481","reported_name":"Cavanagh Michael J","relationship":{"officer":true,"officer_title":"CFO"}}],"security":"Restricted Stock Units","published_at":"2021-03-19T20:19:34.000Z","date":"2021-03-18","kind":"exercise","acquired":false,"shares":5811,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each restricted stock unit represents a contigent right to receive one share of Class A Common Stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"These restricted stock units vest on the transaction date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"These restricted stock units vest on the transaction date."}],"balance_after":90275,"derivative":{"exercise_price":0,"underlying":"Class A Common Stock","underlying_shares":5811},"source":{"system":"sec-edgar","filing":"0001225208-21-005689","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/1166691/000122520821005689/doc4.xml","form_type":"4"}},{"id":2777802,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":1669,"kind":"person","name":"Cavanagh Michael J","position":1,"cik":"0001304481","reported_name":"Cavanagh Michael J","relationship":{"officer":true,"officer_title":"CFO"}}],"security":"Restricted Stock Units","published_at":"2021-03-19T20:19:34.000Z","date":"2021-03-17","kind":"exercise","acquired":false,"shares":18342,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each restricted stock unit represents a contigent right to receive one share of Class A Common Stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"These restricted stock units vest on the transaction date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"These restricted stock units vest on the transaction date."}],"balance_after":96086,"derivative":{"exercise_price":0,"underlying":"Class A Common Stock","underlying_shares":18342},"source":{"system":"sec-edgar","filing":"0001225208-21-005689","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1166691/000122520821005689/doc4.xml","form_type":"4"}},{"id":2777801,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":1669,"kind":"person","name":"Cavanagh Michael J","position":1,"cik":"0001304481","reported_name":"Cavanagh Michael J","relationship":{"officer":true,"officer_title":"CFO"}}],"security":"Class A Common Stock","published_at":"2021-03-19T20:19:34.000Z","date":"2021-03-18","kind":"tax_withholding","acquired":false,"shares":5811,"price":55.87,"value":324660.57,"ownership":{"direct":true},"balance_after":12174,"source":{"system":"sec-edgar","filing":"0001225208-21-005689","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1166691/000122520821005689/doc4.xml","form_type":"4"}},{"id":2777800,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":1669,"kind":"person","name":"Cavanagh Michael J","position":1,"cik":"0001304481","reported_name":"Cavanagh Michael J","relationship":{"officer":true,"officer_title":"CFO"}}],"security":"Class A Common Stock","published_at":"2021-03-19T20:19:34.000Z","date":"2021-03-18","kind":"exercise","acquired":true,"shares":5811,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":17985,"source":{"system":"sec-edgar","filing":"0001225208-21-005689","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1166691/000122520821005689/doc4.xml","form_type":"4"}},{"id":2777799,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":1669,"kind":"person","name":"Cavanagh Michael J","position":1,"cik":"0001304481","reported_name":"Cavanagh Michael J","relationship":{"officer":true,"officer_title":"CFO"}}],"security":"Class A Common Stock","published_at":"2021-03-19T20:19:34.000Z","date":"2021-03-17","kind":"tax_withholding","acquired":false,"shares":8868,"price":57.5,"value":509910.0,"ownership":{"direct":true},"balance_after":141240,"source":{"system":"sec-edgar","filing":"0001225208-21-005689","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1166691/000122520821005689/doc4.xml","form_type":"4"}},{"id":2777798,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":1669,"kind":"person","name":"Cavanagh Michael J","position":1,"cik":"0001304481","reported_name":"Cavanagh Michael J","relationship":{"officer":true,"officer_title":"CFO"}}],"security":"Class A Common Stock","published_at":"2021-03-19T20:19:34.000Z","date":"2021-03-17","kind":"exercise","acquired":true,"shares":18342,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":150108,"source":{"system":"sec-edgar","filing":"0001225208-21-005689","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1166691/000122520821005689/doc4.xml","form_type":"4"}},{"id":2783169,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":1669,"kind":"person","name":"Cavanagh Michael J","position":1,"cik":"0001304481","reported_name":"Cavanagh Michael J","relationship":{"officer":true,"officer_title":"CFO"}}],"security":"Restricted Stock Units","published_at":"2021-03-17T21:52:46.000Z","date":"2021-03-16","kind":"exercise","acquired":false,"shares":18129,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each restricted stock unit represents a contigent right to receive one share of Class A Common Stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"These restricted stock units vest on the transaction date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"These restricted stock units vest on the transaction date."}],"balance_after":114428,"derivative":{"exercise_price":0,"underlying":"Class A Common Stock","underlying_shares":18129},"source":{"system":"sec-edgar","filing":"0001225208-21-005522","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1166691/000122520821005522/doc4.xml","form_type":"4"}},{"id":2783168,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":1669,"kind":"person","name":"Cavanagh Michael J","position":1,"cik":"0001304481","reported_name":"Cavanagh Michael J","relationship":{"officer":true,"officer_title":"CFO"}}],"security":"Restricted Stock Units","published_at":"2021-03-17T21:52:46.000Z","date":"2021-03-15","kind":"exercise","acquired":false,"shares":25020,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each restricted stock unit represents a contigent right to receive one share of Class A Common Stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"These restricted stock units vest on the transaction date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"These restricted stock units vest on the transaction date."}],"balance_after":132557,"derivative":{"exercise_price":0,"underlying":"Class A Common Stock","underlying_shares":25020},"source":{"system":"sec-edgar","filing":"0001225208-21-005522","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1166691/000122520821005522/doc4.xml","form_type":"4"}},{"id":2783167,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":1669,"kind":"person","name":"Cavanagh Michael J","position":1,"cik":"0001304481","reported_name":"Cavanagh Michael J","relationship":{"officer":true,"officer_title":"CFO"}}],"security":"Class A Common Stock","published_at":"2021-03-17T21:52:46.000Z","date":"2021-03-16","kind":"tax_withholding","acquired":false,"shares":8765,"price":58.04,"value":508720.6,"ownership":{"direct":true},"balance_after":131766,"source":{"system":"sec-edgar","filing":"0001225208-21-005522","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1166691/000122520821005522/doc4.xml","form_type":"4"}},{"id":2783166,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":1669,"kind":"person","name":"Cavanagh Michael J","position":1,"cik":"0001304481","reported_name":"Cavanagh Michael J","relationship":{"officer":true,"officer_title":"CFO"}}],"security":"Class A Common Stock","published_at":"2021-03-17T21:52:46.000Z","date":"2021-03-16","kind":"exercise","acquired":true,"shares":18129,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":140531,"source":{"system":"sec-edgar","filing":"0001225208-21-005522","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1166691/000122520821005522/doc4.xml","form_type":"4"}},{"id":2783165,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":1669,"kind":"person","name":"Cavanagh Michael J","position":1,"cik":"0001304481","reported_name":"Cavanagh Michael J","relationship":{"officer":true,"officer_title":"CFO"}}],"security":"Class A Common Stock","published_at":"2021-03-17T21:52:46.000Z","date":"2021-03-15","kind":"tax_withholding","acquired":false,"shares":12096,"price":57.53,"value":695882.88,"ownership":{"direct":true},"balance_after":122402,"source":{"system":"sec-edgar","filing":"0001225208-21-005522","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1166691/000122520821005522/doc4.xml","form_type":"4"}},{"id":2783164,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":1669,"kind":"person","name":"Cavanagh Michael J","position":1,"cik":"0001304481","reported_name":"Cavanagh Michael J","relationship":{"officer":true,"officer_title":"CFO"}}],"security":"Class A Common Stock","published_at":"2021-03-17T21:52:46.000Z","date":"2021-03-15","kind":"exercise","acquired":true,"shares":25020,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":134498,"source":{"system":"sec-edgar","filing":"0001225208-21-005522","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1166691/000122520821005522/doc4.xml","form_type":"4"}}],"next_cursor":"2021-03-17T21:52:46.000000Z,2783164"}