{"transactions":[{"id":2363774,"issuer":{"id":1501,"kind":"organization","name":"MARSH & MCLENNAN COMPANIES, INC.","symbol":"MRSH"},"owners":[{"id":129781,"kind":"person","name":"Beshar Peter J","position":1,"cik":"0001309593","reported_name":"Beshar Peter J","relationship":{"officer":true,"officer_title":"EVP and General Counsel"}}],"security":"Restricted Stock Units","published_at":"2022-03-02T21:50:58.000Z","date":"2022-02-28","kind":"exercise","acquired":false,"shares":14149,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"The security converts to Marsh & McLennan Companies common stock on a 1-for-1 basis."},{"field":"kind","element":"transactionCoding","label":"F1","text":"Vesting and distribution to reporting person of 14,149 shares underlying restricted stock units of which 7,224 were withheld by Marsh & McLennan Companies to cover applicable taxes. These 14,149 shares underlying restricted stock units relate to 2,066 restricted stock units that were granted on February 19, 2019 and 12,083 restricted stock units relating to performance stock units that were granted on February 19, 2019 for the performance period 2019-2021."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"Not Applicable."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"Not Applicable."}],"balance_after":0,"derivative":{"underlying":"Common Stock","underlying_shares":14149},"source":{"system":"sec-edgar","filing":"0001127602-22-007733","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/62709/000112760222007733/form4.xml","form_type":"4"}},{"id":2363773,"issuer":{"id":1501,"kind":"organization","name":"MARSH & MCLENNAN COMPANIES, INC.","symbol":"MRSH"},"owners":[{"id":129781,"kind":"person","name":"Beshar Peter J","position":1,"cik":"0001309593","reported_name":"Beshar Peter J","relationship":{"officer":true,"officer_title":"EVP and General Counsel"}}],"security":"Common Stock","published_at":"2022-03-02T21:50:58.000Z","date":"2022-02-28","kind":"tax_withholding","acquired":false,"shares":7224,"price":153.985,"value":1112387.64,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Vesting and distribution to reporting person of 14,149 shares underlying restricted stock units of which 7,224 were withheld by Marsh & McLennan Companies to cover applicable taxes. These 14,149 shares underlying restricted stock units relate to 2,066 restricted stock units that were granted on February 19, 2019 and 12,083 restricted stock units relating to performance stock units that were granted on February 19, 2019 for the performance period 2019-2021."}],"balance_after":505312,"source":{"system":"sec-edgar","filing":"0001127602-22-007733","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/62709/000112760222007733/form4.xml","form_type":"4"}},{"id":2363772,"issuer":{"id":1501,"kind":"organization","name":"MARSH & MCLENNAN COMPANIES, INC.","symbol":"MRSH"},"owners":[{"id":129781,"kind":"person","name":"Beshar Peter J","position":1,"cik":"0001309593","reported_name":"Beshar Peter J","relationship":{"officer":true,"officer_title":"EVP and General Counsel"}}],"security":"Common Stock","published_at":"2022-03-02T21:50:58.000Z","date":"2022-02-28","kind":"exercise","acquired":true,"shares":14149,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Vesting and distribution to reporting person of 14,149 shares underlying restricted stock units of which 7,224 were withheld by Marsh & McLennan Companies to cover applicable taxes. These 14,149 shares underlying restricted stock units relate to 2,066 restricted stock units that were granted on February 19, 2019 and 12,083 restricted stock units relating to performance stock units that were granted on February 19, 2019 for the performance period 2019-2021."}],"balance_after":512536,"source":{"system":"sec-edgar","filing":"0001127602-22-007733","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/62709/000112760222007733/form4.xml","form_type":"4"}},{"id":2376851,"issuer":{"id":1501,"kind":"organization","name":"MARSH & MCLENNAN COMPANIES, INC.","symbol":"MRSH"},"owners":[{"id":129781,"kind":"person","name":"Beshar Peter J","position":1,"cik":"0001309593","reported_name":"Beshar Peter J","relationship":{"officer":true,"officer_title":"EVP and General Counsel"}}],"security":"Restricted Stock Units","published_at":"2022-02-24T21:53:08.000Z","date":"2022-02-23","kind":"grant","acquired":true,"shares":12083,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"The security converts to Marsh & McLennan Companies common stock on a 1-for-1 basis."},{"field":"kind","element":"transactionCoding","label":"F3","text":"These restricted stock units relate to performance stock units that were granted on February 19, 2019 for the performance period 2019-2021. The performance factor for these performance stock units was determined on February 23, 2022."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"Not Applicable."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"Not Applicable."}],"balance_after":14149,"derivative":{"underlying":"Common Stock","underlying_shares":12083},"source":{"system":"sec-edgar","filing":"0001127602-22-006591","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/62709/000112760222006591/form4.xml","form_type":"4"}},{"id":2376850,"issuer":{"id":1501,"kind":"organization","name":"MARSH & MCLENNAN COMPANIES, INC.","symbol":"MRSH"},"owners":[{"id":129781,"kind":"person","name":"Beshar Peter J","position":1,"cik":"0001309593","reported_name":"Beshar Peter J","relationship":{"officer":true,"officer_title":"EVP and General Counsel"}}],"security":"Stock Options (Right to Buy)","published_at":"2022-02-24T21:53:08.000Z","date":"2022-02-23","kind":"grant","acquired":true,"shares":38243,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"These options were granted on February 23, 2022 and vest in four equal annual installments on February 23rd of 2023, 2024, 2025 and 2026."}],"balance_after":38243,"derivative":{"exercise_price":151.368,"expiration_date":"2032-02-22","underlying":"Common Stock","underlying_shares":38243},"source":{"system":"sec-edgar","filing":"0001127602-22-006591","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/62709/000112760222006591/form4.xml","form_type":"4"}},{"id":2824480,"issuer":{"id":1501,"kind":"organization","name":"MARSH & MCLENNAN COMPANIES, INC.","symbol":"MRSH"},"owners":[{"id":129781,"kind":"person","name":"Beshar Peter J","position":1,"cik":"0001309593","reported_name":"Beshar Peter J","relationship":{"officer":true,"officer_title":"EVP and General Counsel"}}],"security":"Restricted Stock Units","published_at":"2021-03-02T22:02:19.000Z","date":"2021-02-28","kind":"exercise","acquired":false,"shares":11775,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"The security converts to Marsh & McLennan Companies common stock on a 1-for-1 basis."},{"field":"kind","element":"transactionCoding","label":"F1","text":"Vesting and distribution to reporting person of 11,775 shares underlying restricted stock units of which 5,768 were withheld by Marsh & McLennan Companies to cover applicable taxes. These 11,775 shares underlying restricted stock units relate to 2,258 restricted stock units that were granted on February 21, 2018, 7,452 restricted stock units relating to performance stock units that were granted on February 21, 2018 for the performance period 2018-2020 and 2,065 restricted stock units that were granted on February 19, 2019."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"Not Applicable."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"Not Applicable."}],"balance_after":2066,"derivative":{"underlying":"Common Stock","underlying_shares":11775},"source":{"system":"sec-edgar","filing":"0001127602-21-008781","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/62709/000112760221008781/form4.xml","form_type":"4"}},{"id":2824479,"issuer":{"id":1501,"kind":"organization","name":"MARSH & MCLENNAN COMPANIES, INC.","symbol":"MRSH"},"owners":[{"id":129781,"kind":"person","name":"Beshar Peter J","position":1,"cik":"0001309593","reported_name":"Beshar Peter J","relationship":{"officer":true,"officer_title":"EVP and General Counsel"}}],"security":"Common Stock","published_at":"2021-03-02T22:02:19.000Z","date":"2021-02-28","kind":"tax_withholding","acquired":false,"shares":5768,"price":116.83,"value":673875.44,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Vesting and distribution to reporting person of 11,775 shares underlying restricted stock units of which 5,768 were withheld by Marsh & McLennan Companies to cover applicable taxes. These 11,775 shares underlying restricted stock units relate to 2,258 restricted stock units that were granted on February 21, 2018, 7,452 restricted stock units relating to performance stock units that were granted on February 21, 2018 for the performance period 2018-2020 and 2,065 restricted stock units that were granted on February 19, 2019."}],"balance_after":498387,"source":{"system":"sec-edgar","filing":"0001127602-21-008781","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/62709/000112760221008781/form4.xml","form_type":"4"}},{"id":2824478,"issuer":{"id":1501,"kind":"organization","name":"MARSH & MCLENNAN COMPANIES, INC.","symbol":"MRSH"},"owners":[{"id":129781,"kind":"person","name":"Beshar Peter J","position":1,"cik":"0001309593","reported_name":"Beshar Peter J","relationship":{"officer":true,"officer_title":"EVP and General Counsel"}}],"security":"Common Stock","published_at":"2021-03-02T22:02:19.000Z","date":"2021-02-28","kind":"exercise","acquired":true,"shares":11775,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Vesting and distribution to reporting person of 11,775 shares underlying restricted stock units of which 5,768 were withheld by Marsh & McLennan Companies to cover applicable taxes. These 11,775 shares underlying restricted stock units relate to 2,258 restricted stock units that were granted on February 21, 2018, 7,452 restricted stock units relating to performance stock units that were granted on February 21, 2018 for the performance period 2018-2020 and 2,065 restricted stock units that were granted on February 19, 2019."}],"balance_after":504155,"source":{"system":"sec-edgar","filing":"0001127602-21-008781","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/62709/000112760221008781/form4.xml","form_type":"4"}},{"id":2837710,"issuer":{"id":1501,"kind":"organization","name":"MARSH & MCLENNAN COMPANIES, INC.","symbol":"MRSH"},"owners":[{"id":129781,"kind":"person","name":"Beshar Peter J","position":1,"cik":"0001309593","reported_name":"Beshar Peter J","relationship":{"officer":true,"officer_title":"EVP and General Counsel"}}],"security":"Restricted Stock Units","published_at":"2021-02-24T21:34:34.000Z","date":"2021-02-22","kind":"grant","acquired":true,"shares":7452,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"The security converts to Marsh & McLennan Companies common stock on a 1-for-1 basis."},{"field":"kind","element":"transactionCoding","label":"F3","text":"These restricted stock units relate to performance stock units that were granted on February 21, 2018 for the performance period 2018-2020. The performance factor for these performance stock units was determined on February 22, 2021."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"Not Applicable."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"Not Applicable."}],"balance_after":13841,"derivative":{"underlying":"Common Stock","underlying_shares":7452},"source":{"system":"sec-edgar","filing":"0001127602-21-007641","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/62709/000112760221007641/form4.xml","form_type":"4"}},{"id":2837709,"issuer":{"id":1501,"kind":"organization","name":"MARSH & MCLENNAN COMPANIES, INC.","symbol":"MRSH"},"owners":[{"id":129781,"kind":"person","name":"Beshar Peter J","position":1,"cik":"0001309593","reported_name":"Beshar Peter J","relationship":{"officer":true,"officer_title":"EVP and General Counsel"}}],"security":"Stock Options (Right to Buy)","published_at":"2021-02-24T21:34:34.000Z","date":"2021-02-22","kind":"grant","acquired":true,"shares":53937,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"These options were granted on February 22, 2021 and vest in four equal annual installments on February 22nd of 2022, 2023, 2024 and 2025."}],"balance_after":53937,"derivative":{"exercise_price":117.53,"expiration_date":"2031-02-21","underlying":"Common Stock","underlying_shares":53937},"source":{"system":"sec-edgar","filing":"0001127602-21-007641","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/62709/000112760221007641/form4.xml","form_type":"4"}},{"id":2878474,"issuer":{"id":1501,"kind":"organization","name":"MARSH & MCLENNAN COMPANIES, INC.","symbol":"MRSH"},"owners":[{"id":129781,"kind":"person","name":"Beshar Peter J","position":1,"cik":"0001309593","reported_name":"Beshar Peter J","relationship":{"officer":true,"officer_title":"EVP and General Counsel"}}],"security":"Common Stock","published_at":"2021-02-05T21:19:32.000Z","date":"2020-11-06","kind":"gift","acquired":true,"shares":54000,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"By Trust Account"},"balance_after":54000,"source":{"system":"sec-edgar","filing":"0001127602-21-004168","document":"form5.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/62709/000112760221004168/form5.xml","form_type":"5"}},{"id":2878473,"issuer":{"id":1501,"kind":"organization","name":"MARSH & MCLENNAN COMPANIES, INC.","symbol":"MRSH"},"owners":[{"id":129781,"kind":"person","name":"Beshar Peter J","position":1,"cik":"0001309593","reported_name":"Beshar Peter J","relationship":{"officer":true,"officer_title":"EVP and General Counsel"}}],"security":"Common Stock","published_at":"2021-02-05T21:19:32.000Z","date":"2020-11-06","kind":"gift","acquired":false,"shares":54000,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":492380,"source":{"system":"sec-edgar","filing":"0001127602-21-004168","document":"form5.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/62709/000112760221004168/form5.xml","form_type":"5"}},{"id":2993888,"issuer":{"id":1501,"kind":"organization","name":"MARSH & MCLENNAN COMPANIES, INC.","symbol":"MRSH"},"owners":[{"id":129781,"kind":"person","name":"Beshar Peter J","position":1,"cik":"0001309593","reported_name":"Beshar Peter J","relationship":{"officer":true,"officer_title":"EVP and General Counsel"}}],"security":"Stock Options (Right to Buy)","published_at":"2020-11-04T21:01:22.000Z","date":"2020-11-02","kind":"exercise","acquired":false,"shares":97319,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"These options were granted on February 22, 2016 and vested in four equal annual installments on February 22nd of 2017, 2018, 2019 and 2020."}],"balance_after":0,"derivative":{"exercise_price":57.325,"expiration_date":"2026-02-21","underlying":"Common Stock","underlying_shares":97319},"source":{"system":"sec-edgar","filing":"0001127602-20-028103","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":10,"url":"https://www.sec.gov/Archives/edgar/data/62709/000112760220028103/form4.xml","form_type":"4"}},{"id":2993887,"issuer":{"id":1501,"kind":"organization","name":"MARSH & MCLENNAN COMPANIES, INC.","symbol":"MRSH"},"owners":[{"id":129781,"kind":"person","name":"Beshar Peter J","position":1,"cik":"0001309593","reported_name":"Beshar Peter J","relationship":{"officer":true,"officer_title":"EVP and General Counsel"}}],"security":"Stock Options (Right to Buy)","published_at":"2020-11-04T21:01:22.000Z","date":"2020-11-02","kind":"exercise","acquired":false,"shares":99207,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"These options were granted on February 23, 2015 and vested in four equal annual installments on February 23rd of 2016, 2017, 2018 and 2019."}],"balance_after":0,"derivative":{"exercise_price":56.84,"expiration_date":"2025-02-22","underlying":"Common Stock","underlying_shares":99207},"source":{"system":"sec-edgar","filing":"0001127602-20-028103","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":9,"url":"https://www.sec.gov/Archives/edgar/data/62709/000112760220028103/form4.xml","form_type":"4"}},{"id":2993886,"issuer":{"id":1501,"kind":"organization","name":"MARSH & MCLENNAN COMPANIES, INC.","symbol":"MRSH"},"owners":[{"id":129781,"kind":"person","name":"Beshar Peter J","position":1,"cik":"0001309593","reported_name":"Beshar Peter J","relationship":{"officer":true,"officer_title":"EVP and General Counsel"}}],"security":"Stock Options (Right to Buy)","published_at":"2020-11-04T21:01:22.000Z","date":"2020-11-02","kind":"exercise","acquired":false,"shares":113872,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"These options were granted on February 24, 2014 and vested in four equal annual installments on February 24th of 2015, 2016, 2017 and 2018."}],"balance_after":0,"derivative":{"exercise_price":48,"expiration_date":"2024-02-23","underlying":"Common Stock","underlying_shares":113872},"source":{"system":"sec-edgar","filing":"0001127602-20-028103","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/62709/000112760220028103/form4.xml","form_type":"4"}},{"id":2993885,"issuer":{"id":1501,"kind":"organization","name":"MARSH & MCLENNAN COMPANIES, INC.","symbol":"MRSH"},"owners":[{"id":129781,"kind":"person","name":"Beshar Peter J","position":1,"cik":"0001309593","reported_name":"Beshar Peter J","relationship":{"officer":true,"officer_title":"EVP and General Counsel"}}],"security":"Common Stock","published_at":"2020-11-04T21:01:22.000Z","date":"2020-11-02","kind":"tax_withholding","acquired":false,"shares":74656,"price":105.44,"value":7871728.64,"ownership":{"direct":true},"balance_after":546380,"source":{"system":"sec-edgar","filing":"0001127602-20-028103","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/62709/000112760220028103/form4.xml","form_type":"4"}},{"id":2993884,"issuer":{"id":1501,"kind":"organization","name":"MARSH & MCLENNAN COMPANIES, INC.","symbol":"MRSH"},"owners":[{"id":129781,"kind":"person","name":"Beshar Peter J","position":1,"cik":"0001309593","reported_name":"Beshar Peter J","relationship":{"officer":true,"officer_title":"EVP and General Counsel"}}],"security":"Common Stock","published_at":"2020-11-04T21:01:22.000Z","date":"2020-11-02","kind":"tax_withholding","acquired":false,"shares":75931,"price":105.21,"value":7988700.51,"ownership":{"direct":true},"balance_after":621036,"source":{"system":"sec-edgar","filing":"0001127602-20-028103","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/62709/000112760220028103/form4.xml","form_type":"4"}},{"id":2993883,"issuer":{"id":1501,"kind":"organization","name":"MARSH & MCLENNAN COMPANIES, INC.","symbol":"MRSH"},"owners":[{"id":129781,"kind":"person","name":"Beshar Peter J","position":1,"cik":"0001309593","reported_name":"Beshar Peter J","relationship":{"officer":true,"officer_title":"EVP and General Counsel"}}],"security":"Common Stock","published_at":"2020-11-04T21:01:22.000Z","date":"2020-11-02","kind":"tax_withholding","acquired":false,"shares":82275,"price":105.2,"value":8655330.0,"ownership":{"direct":true},"balance_after":696967,"source":{"system":"sec-edgar","filing":"0001127602-20-028103","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/62709/000112760220028103/form4.xml","form_type":"4"}},{"id":2993882,"issuer":{"id":1501,"kind":"organization","name":"MARSH & MCLENNAN COMPANIES, INC.","symbol":"MRSH"},"owners":[{"id":129781,"kind":"person","name":"Beshar Peter J","position":1,"cik":"0001309593","reported_name":"Beshar Peter J","relationship":{"officer":true,"officer_title":"EVP and General Counsel"}}],"security":"Common Stock","published_at":"2020-11-04T21:01:22.000Z","date":"2020-11-02","kind":"exercise","acquired":true,"shares":97319,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"On November 2, 2020 Mr. Beshar exercised 113,872 options that were granted to him in 2014, 99,207 options that were granted to him in 2015 and 97,319 options that were granted to him in 2016 and thereby increased his net ownership of MMC common stock by 77,536 from 468,844 to 546,380 shares. 82,275 shares were used to satisfy the exercise price and applicable taxes for the options granted in 2014, 75,931 shares were used to satisfy the exercise price and applicable taxes for the options granted in 2015 and 74,656 shares were used to satisfy the exercise price and applicable taxes on the options granted in 2016 in exempt transactions."}],"balance_after":779242,"source":{"system":"sec-edgar","filing":"0001127602-20-028103","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/62709/000112760220028103/form4.xml","form_type":"4"}},{"id":2993881,"issuer":{"id":1501,"kind":"organization","name":"MARSH & MCLENNAN COMPANIES, INC.","symbol":"MRSH"},"owners":[{"id":129781,"kind":"person","name":"Beshar Peter J","position":1,"cik":"0001309593","reported_name":"Beshar Peter J","relationship":{"officer":true,"officer_title":"EVP and General Counsel"}}],"security":"Common Stock","published_at":"2020-11-04T21:01:22.000Z","date":"2020-11-02","kind":"exercise","acquired":true,"shares":99207,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"On November 2, 2020 Mr. Beshar exercised 113,872 options that were granted to him in 2014, 99,207 options that were granted to him in 2015 and 97,319 options that were granted to him in 2016 and thereby increased his net ownership of MMC common stock by 77,536 from 468,844 to 546,380 shares. 82,275 shares were used to satisfy the exercise price and applicable taxes for the options granted in 2014, 75,931 shares were used to satisfy the exercise price and applicable taxes for the options granted in 2015 and 74,656 shares were used to satisfy the exercise price and applicable taxes on the options granted in 2016 in exempt transactions."}],"balance_after":681923,"source":{"system":"sec-edgar","filing":"0001127602-20-028103","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/62709/000112760220028103/form4.xml","form_type":"4"}},{"id":2993880,"issuer":{"id":1501,"kind":"organization","name":"MARSH & MCLENNAN COMPANIES, INC.","symbol":"MRSH"},"owners":[{"id":129781,"kind":"person","name":"Beshar Peter J","position":1,"cik":"0001309593","reported_name":"Beshar Peter J","relationship":{"officer":true,"officer_title":"EVP and General Counsel"}}],"security":"Common Stock","published_at":"2020-11-04T21:01:22.000Z","date":"2020-11-02","kind":"exercise","acquired":true,"shares":113872,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"On November 2, 2020 Mr. Beshar exercised 113,872 options that were granted to him in 2014, 99,207 options that were granted to him in 2015 and 97,319 options that were granted to him in 2016 and thereby increased his net ownership of MMC common stock by 77,536 from 468,844 to 546,380 shares. 82,275 shares were used to satisfy the exercise price and applicable taxes for the options granted in 2014, 75,931 shares were used to satisfy the exercise price and applicable taxes for the options granted in 2015 and 74,656 shares were used to satisfy the exercise price and applicable taxes on the options granted in 2016 in exempt transactions."}],"balance_after":582716,"source":{"system":"sec-edgar","filing":"0001127602-20-028103","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/62709/000112760220028103/form4.xml","form_type":"4"}},{"id":2993879,"issuer":{"id":1501,"kind":"organization","name":"MARSH & MCLENNAN COMPANIES, INC.","symbol":"MRSH"},"owners":[{"id":129781,"kind":"person","name":"Beshar Peter J","position":1,"cik":"0001309593","reported_name":"Beshar Peter J","relationship":{"officer":true,"officer_title":"EVP and General Counsel"}}],"security":"Common Stock","published_at":"2020-11-04T21:01:22.000Z","date":"2020-08-18","kind":"gift","acquired":false,"shares":8584,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":468844,"source":{"system":"sec-edgar","filing":"0001127602-20-028103","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/62709/000112760220028103/form4.xml","form_type":"4"}},{"id":3062937,"issuer":{"id":1501,"kind":"organization","name":"MARSH & MCLENNAN COMPANIES, INC.","symbol":"MRSH"},"owners":[{"id":129781,"kind":"person","name":"Beshar Peter J","position":1,"cik":"0001309593","reported_name":"Beshar Peter J","relationship":{"officer":true,"officer_title":"EVP and General Counsel"}}],"security":"Stock Options (Right to Buy)","published_at":"2020-08-11T20:03:10.000Z","date":"2020-08-07","kind":"exercise","acquired":false,"shares":169355,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"These options were granted on February 25, 2013 and vested in four equal annual installments on February 25th of 2014, 2015, 2016 and 2017."}],"balance_after":0,"derivative":{"exercise_price":36.495,"expiration_date":"2023-02-24","underlying":"Common Stock","underlying_shares":169355},"source":{"system":"sec-edgar","filing":"0001127602-20-023359","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/62709/000112760220023359/form4.xml","form_type":"4"}},{"id":3062936,"issuer":{"id":1501,"kind":"organization","name":"MARSH & MCLENNAN COMPANIES, INC.","symbol":"MRSH"},"owners":[{"id":129781,"kind":"person","name":"Beshar Peter J","position":1,"cik":"0001309593","reported_name":"Beshar Peter J","relationship":{"officer":true,"officer_title":"EVP and General Counsel"}}],"security":"Stock Options (Right to Buy)","published_at":"2020-08-11T20:03:10.000Z","date":"2020-08-07","kind":"exercise","acquired":false,"shares":173842,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"These options were granted on February 24, 2012 and vested in four equal annual installments on February 24th of 2013, 2014, 2015 and 2016."}],"balance_after":0,"derivative":{"exercise_price":31.885,"expiration_date":"2022-02-23","underlying":"Common Stock","underlying_shares":173842},"source":{"system":"sec-edgar","filing":"0001127602-20-023359","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/62709/000112760220023359/form4.xml","form_type":"4"}},{"id":3062935,"issuer":{"id":1501,"kind":"organization","name":"MARSH & MCLENNAN COMPANIES, INC.","symbol":"MRSH"},"owners":[{"id":129781,"kind":"person","name":"Beshar Peter J","position":1,"cik":"0001309593","reported_name":"Beshar Peter J","relationship":{"officer":true,"officer_title":"EVP and General Counsel"}}],"security":"Common Stock","published_at":"2020-08-11T20:03:10.000Z","date":"2020-08-07","kind":"tax_withholding","acquired":false,"shares":109656,"price":118.02,"value":12941601.12,"ownership":{"direct":true},"balance_after":477428,"source":{"system":"sec-edgar","filing":"0001127602-20-023359","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/62709/000112760220023359/form4.xml","form_type":"4"}},{"id":3062934,"issuer":{"id":1501,"kind":"organization","name":"MARSH & MCLENNAN COMPANIES, INC.","symbol":"MRSH"},"owners":[{"id":129781,"kind":"person","name":"Beshar Peter J","position":1,"cik":"0001309593","reported_name":"Beshar Peter J","relationship":{"officer":true,"officer_title":"EVP and General Counsel"}}],"security":"Common Stock","published_at":"2020-08-11T20:03:10.000Z","date":"2020-08-07","kind":"tax_withholding","acquired":false,"shares":109107,"price":117.97,"value":12871352.79,"ownership":{"direct":true},"balance_after":587084,"source":{"system":"sec-edgar","filing":"0001127602-20-023359","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/62709/000112760220023359/form4.xml","form_type":"4"}},{"id":3062933,"issuer":{"id":1501,"kind":"organization","name":"MARSH & MCLENNAN COMPANIES, INC.","symbol":"MRSH"},"owners":[{"id":129781,"kind":"person","name":"Beshar Peter J","position":1,"cik":"0001309593","reported_name":"Beshar Peter J","relationship":{"officer":true,"officer_title":"EVP and General Counsel"}}],"security":"Common Stock","published_at":"2020-08-11T20:03:10.000Z","date":"2020-08-07","kind":"exercise","acquired":true,"shares":169355,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"On August 7, 2020 Mr. Beshar exercised 173,842 options that were granted to him in 2012 and 169,355 options that were granted to him in 2013 and thereby increased his net ownership of MMC common stock by 124,434 from 352,994 to 477,428 shares. 109,107 shares were used to satisfy the exercise price and applicable taxes for the options granted in 2012 and 109,656 shares were used to satisfy the exercise price and applicable taxes on the options granted in 2013 in exempt transactions."}],"balance_after":696191,"source":{"system":"sec-edgar","filing":"0001127602-20-023359","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/62709/000112760220023359/form4.xml","form_type":"4"}},{"id":3062932,"issuer":{"id":1501,"kind":"organization","name":"MARSH & MCLENNAN COMPANIES, INC.","symbol":"MRSH"},"owners":[{"id":129781,"kind":"person","name":"Beshar Peter J","position":1,"cik":"0001309593","reported_name":"Beshar Peter J","relationship":{"officer":true,"officer_title":"EVP and General Counsel"}}],"security":"Common Stock","published_at":"2020-08-11T20:03:10.000Z","date":"2020-08-07","kind":"exercise","acquired":true,"shares":173842,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"On August 7, 2020 Mr. Beshar exercised 173,842 options that were granted to him in 2012 and 169,355 options that were granted to him in 2013 and thereby increased his net ownership of MMC common stock by 124,434 from 352,994 to 477,428 shares. 109,107 shares were used to satisfy the exercise price and applicable taxes for the options granted in 2012 and 109,656 shares were used to satisfy the exercise price and applicable taxes on the options granted in 2013 in exempt transactions."}],"balance_after":526836,"source":{"system":"sec-edgar","filing":"0001127602-20-023359","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/62709/000112760220023359/form4.xml","form_type":"4"}},{"id":3236586,"issuer":{"id":1501,"kind":"organization","name":"MARSH & MCLENNAN COMPANIES, INC.","symbol":"MRSH"},"owners":[{"id":129781,"kind":"person","name":"Beshar Peter J","position":1,"cik":"0001309593","reported_name":"Beshar Peter J","relationship":{"officer":true,"officer_title":"EVP and General Counsel"}}],"security":"Restricted Stock Units","published_at":"2020-03-03T21:09:43.000Z","date":"2020-02-28","kind":"exercise","acquired":false,"shares":19796,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"The security converts to Marsh & McLennan Companies common stock on a 1-for-1 basis."},{"field":"kind","element":"transactionCoding","label":"F1","text":"Vesting and distribution to reporting person of 19,796 shares underlying restricted stock units of which 9,696 were withheld by Marsh & McLennan Companies to cover applicable taxes. These 19,796 shares underlying restricted stock units relate to 2,562 restricted stock units that were granted on February 22, 2017, 12,911 restricted stock units relating to performance stock units that were granted on February 22, 2017 for the performance period 2017-2019, 2,258 restricted stock units that were granted on February 21, 2018 and 2,065 restricted stock units that were granted on February 19, 2019."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"Not Applicable."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"Not Applicable."}],"balance_after":6389,"derivative":{"underlying":"Common Stock","underlying_shares":19796},"source":{"system":"sec-edgar","filing":"0001127602-20-008945","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/62709/000112760220008945/form4.xml","form_type":"4"}},{"id":3236585,"issuer":{"id":1501,"kind":"organization","name":"MARSH & MCLENNAN COMPANIES, INC.","symbol":"MRSH"},"owners":[{"id":129781,"kind":"person","name":"Beshar Peter J","position":1,"cik":"0001309593","reported_name":"Beshar Peter J","relationship":{"officer":true,"officer_title":"EVP and General Counsel"}}],"security":"Common Stock","published_at":"2020-03-03T21:09:43.000Z","date":"2020-02-28","kind":"tax_withholding","acquired":false,"shares":9696,"price":109.57,"value":1062390.72,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Vesting and distribution to reporting person of 19,796 shares underlying restricted stock units of which 9,696 were withheld by Marsh & McLennan Companies to cover applicable taxes. These 19,796 shares underlying restricted stock units relate to 2,562 restricted stock units that were granted on February 22, 2017, 12,911 restricted stock units relating to performance stock units that were granted on February 22, 2017 for the performance period 2017-2019, 2,258 restricted stock units that were granted on February 21, 2018 and 2,065 restricted stock units that were granted on February 19, 2019."}],"balance_after":352994,"source":{"system":"sec-edgar","filing":"0001127602-20-008945","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/62709/000112760220008945/form4.xml","form_type":"4"}},{"id":3236584,"issuer":{"id":1501,"kind":"organization","name":"MARSH & MCLENNAN COMPANIES, INC.","symbol":"MRSH"},"owners":[{"id":129781,"kind":"person","name":"Beshar Peter J","position":1,"cik":"0001309593","reported_name":"Beshar Peter J","relationship":{"officer":true,"officer_title":"EVP and General Counsel"}}],"security":"Common Stock","published_at":"2020-03-03T21:09:43.000Z","date":"2020-02-28","kind":"exercise","acquired":true,"shares":19796,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Vesting and distribution to reporting person of 19,796 shares underlying restricted stock units of which 9,696 were withheld by Marsh & McLennan Companies to cover applicable taxes. These 19,796 shares underlying restricted stock units relate to 2,562 restricted stock units that were granted on February 22, 2017, 12,911 restricted stock units relating to performance stock units that were granted on February 22, 2017 for the performance period 2017-2019, 2,258 restricted stock units that were granted on February 21, 2018 and 2,065 restricted stock units that were granted on February 19, 2019."}],"balance_after":362690,"source":{"system":"sec-edgar","filing":"0001127602-20-008945","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/62709/000112760220008945/form4.xml","form_type":"4"}},{"id":3247925,"issuer":{"id":1501,"kind":"organization","name":"MARSH & MCLENNAN COMPANIES, INC.","symbol":"MRSH"},"owners":[{"id":129781,"kind":"person","name":"Beshar Peter J","position":1,"cik":"0001309593","reported_name":"Beshar Peter J","relationship":{"officer":true,"officer_title":"EVP and General Counsel"}}],"security":"Stock Options (Right to Buy)","published_at":"2020-02-26T21:04:28.000Z","date":"2020-02-24","kind":"exercise","acquired":false,"shares":149926,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"These options were granted on February 21, 2011 and vested in four equal annual installments on February 21st of 2012, 2013, 2014 and 2015."}],"balance_after":0,"derivative":{"exercise_price":30.595,"expiration_date":"2021-02-20","underlying":"Common Stock","underlying_shares":149926},"source":{"system":"sec-edgar","filing":"0001127602-20-007911","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/62709/000112760220007911/form4.xml","form_type":"4"}},{"id":3247924,"issuer":{"id":1501,"kind":"organization","name":"MARSH & MCLENNAN COMPANIES, INC.","symbol":"MRSH"},"owners":[{"id":129781,"kind":"person","name":"Beshar Peter J","position":1,"cik":"0001309593","reported_name":"Beshar Peter J","relationship":{"officer":true,"officer_title":"EVP and General Counsel"}}],"security":"Common Stock","published_at":"2020-02-26T21:04:28.000Z","date":"2020-02-24","kind":"gift","acquired":false,"shares":8475,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":342894,"source":{"system":"sec-edgar","filing":"0001127602-20-007911","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/62709/000112760220007911/form4.xml","form_type":"4"}},{"id":3247923,"issuer":{"id":1501,"kind":"organization","name":"MARSH & MCLENNAN COMPANIES, INC.","symbol":"MRSH"},"owners":[{"id":129781,"kind":"person","name":"Beshar Peter J","position":1,"cik":"0001309593","reported_name":"Beshar Peter J","relationship":{"officer":true,"officer_title":"EVP and General Counsel"}}],"security":"Common Stock","published_at":"2020-02-26T21:04:28.000Z","date":"2020-02-24","kind":"tax_withholding","acquired":false,"shares":93739,"price":115.19,"value":10797795.41,"ownership":{"direct":true},"balance_after":351369,"source":{"system":"sec-edgar","filing":"0001127602-20-007911","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/62709/000112760220007911/form4.xml","form_type":"4"}},{"id":3247922,"issuer":{"id":1501,"kind":"organization","name":"MARSH & MCLENNAN COMPANIES, INC.","symbol":"MRSH"},"owners":[{"id":129781,"kind":"person","name":"Beshar Peter J","position":1,"cik":"0001309593","reported_name":"Beshar Peter J","relationship":{"officer":true,"officer_title":"EVP and General Counsel"}}],"security":"Common Stock","published_at":"2020-02-26T21:04:28.000Z","date":"2020-02-24","kind":"exercise","acquired":true,"shares":149926,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"On February 24, 2020 Mr. Beshar exercised 149,926 options that were granted to him in 2011 and thereby increased his net ownership of MMC common stock by 56,187 from 295,182 to 351,369 shares. 93,739 shares were used to satisfy the exercise price and applicable taxes in an exempt transaction."}],"balance_after":445108,"source":{"system":"sec-edgar","filing":"0001127602-20-007911","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/62709/000112760220007911/form4.xml","form_type":"4"}},{"id":3258369,"issuer":{"id":1501,"kind":"organization","name":"MARSH & MCLENNAN COMPANIES, INC.","symbol":"MRSH"},"owners":[{"id":129781,"kind":"person","name":"Beshar Peter J","position":1,"cik":"0001309593","reported_name":"Beshar Peter J","relationship":{"officer":true,"officer_title":"EVP and General Counsel"}}],"security":"Restricted Stock Units","published_at":"2020-02-21T21:25:25.000Z","date":"2020-02-19","kind":"grant","acquired":true,"shares":12911,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"The security converts to Marsh & McLennan Companies common stock on a 1-for-1 basis."},{"field":"kind","element":"transactionCoding","label":"F3","text":"These restricted stock units relate to performance stock units that were granted on February 22, 2017 for the performance period 2017-2019. The performance factor for these performance stock units was determined on February 19, 2020."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"Not Applicable."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"Not Applicable."}],"balance_after":26185,"derivative":{"underlying":"Common Stock","underlying_shares":12911},"source":{"system":"sec-edgar","filing":"0001127602-20-006983","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/62709/000112760220006983/form4.xml","form_type":"4"}},{"id":3258368,"issuer":{"id":1501,"kind":"organization","name":"MARSH & MCLENNAN COMPANIES, INC.","symbol":"MRSH"},"owners":[{"id":129781,"kind":"person","name":"Beshar Peter J","position":1,"cik":"0001309593","reported_name":"Beshar Peter J","relationship":{"officer":true,"officer_title":"EVP and General Counsel"}}],"security":"Stock Options (Right to Buy)","published_at":"2020-02-21T21:25:25.000Z","date":"2020-02-19","kind":"grant","acquired":true,"shares":56909,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"These options were granted on February 19, 2020 and vest in four equal annual installments on February 19th of 2021, 2022, 2023 and 2024."}],"balance_after":56909,"derivative":{"exercise_price":118.865,"expiration_date":"2030-02-18","underlying":"Common Stock","underlying_shares":56909},"source":{"system":"sec-edgar","filing":"0001127602-20-006983","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/62709/000112760220006983/form4.xml","form_type":"4"}},{"id":3607526,"issuer":{"id":1501,"kind":"organization","name":"MARSH & MCLENNAN COMPANIES, INC.","symbol":"MRSH"},"owners":[{"id":129781,"kind":"person","name":"Beshar Peter J","position":1,"cik":"0001309593","reported_name":"Beshar Peter J","relationship":{"officer":true,"officer_title":"EVP and General Counsel"}}],"security":"Common Stock","published_at":"2019-03-07T21:12:19.000Z","date":"2019-03-05","kind":"sale","acquired":false,"shares":8985,"price":92.696,"value":832873.56,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan previously adopted by the Reporting Person."}],"balance_after":295182,"source":{"system":"sec-edgar","filing":"0001127602-19-010422","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/62709/000112760219010422/form4.xml","form_type":"4"}},{"id":3621970,"issuer":{"id":1501,"kind":"organization","name":"MARSH & MCLENNAN COMPANIES, INC.","symbol":"MRSH"},"owners":[{"id":129781,"kind":"person","name":"Beshar Peter J","position":1,"cik":"0001309593","reported_name":"Beshar Peter J","relationship":{"officer":true,"officer_title":"EVP and General Counsel"}}],"security":"Restricted Stock Units","published_at":"2019-03-04T22:04:59.000Z","date":"2019-02-28","kind":"exercise","acquired":false,"shares":17610,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"The security converts to Marsh & McLennan Companies common stock on a 1-for-1 basis."},{"field":"kind","element":"transactionCoding","label":"F1","text":"Vesting and distribution to reporting person of 17,610 shares underlying restricted stock units of which 8,625 were withheld by Marsh & McLennan Companies to cover applicable taxes. These 17,610 shares underlying restricted stock units relate to 3,271 restricted stock units that were granted on February 22, 2016, 9,519 restricted stock units relating to performance stock units that were granted on February 22, 2016 for the performance period 2016-2018, 2,562 restricted stock units that were granted on February 22, 2017 and 2,258 restricted stock units that were granted on February 21, 2018."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"Not Applicable."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"Not Applicable."}],"balance_after":13274,"derivative":{"underlying":"Common Stock","underlying_shares":17610},"source":{"system":"sec-edgar","filing":"0001127602-19-009549","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/62709/000112760219009549/form4.xml","form_type":"4"}},{"id":3621969,"issuer":{"id":1501,"kind":"organization","name":"MARSH & MCLENNAN COMPANIES, INC.","symbol":"MRSH"},"owners":[{"id":129781,"kind":"person","name":"Beshar Peter J","position":1,"cik":"0001309593","reported_name":"Beshar Peter J","relationship":{"officer":true,"officer_title":"EVP and General Counsel"}}],"security":"Common Stock","published_at":"2019-03-04T22:04:59.000Z","date":"2019-02-28","kind":"tax_withholding","acquired":false,"shares":8625,"price":92.49,"value":797726.25,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Vesting and distribution to reporting person of 17,610 shares underlying restricted stock units of which 8,625 were withheld by Marsh & McLennan Companies to cover applicable taxes. These 17,610 shares underlying restricted stock units relate to 3,271 restricted stock units that were granted on February 22, 2016, 9,519 restricted stock units relating to performance stock units that were granted on February 22, 2016 for the performance period 2016-2018, 2,562 restricted stock units that were granted on February 22, 2017 and 2,258 restricted stock units that were granted on February 21, 2018."}],"balance_after":304167,"source":{"system":"sec-edgar","filing":"0001127602-19-009549","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/62709/000112760219009549/form4.xml","form_type":"4"}},{"id":3621968,"issuer":{"id":1501,"kind":"organization","name":"MARSH & MCLENNAN COMPANIES, INC.","symbol":"MRSH"},"owners":[{"id":129781,"kind":"person","name":"Beshar Peter J","position":1,"cik":"0001309593","reported_name":"Beshar Peter J","relationship":{"officer":true,"officer_title":"EVP and General Counsel"}}],"security":"Common Stock","published_at":"2019-03-04T22:04:59.000Z","date":"2019-02-28","kind":"exercise","acquired":true,"shares":17610,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Vesting and distribution to reporting person of 17,610 shares underlying restricted stock units of which 8,625 were withheld by Marsh & McLennan Companies to cover applicable taxes. These 17,610 shares underlying restricted stock units relate to 3,271 restricted stock units that were granted on February 22, 2016, 9,519 restricted stock units relating to performance stock units that were granted on February 22, 2016 for the performance period 2016-2018, 2,562 restricted stock units that were granted on February 22, 2017 and 2,258 restricted stock units that were granted on February 21, 2018."}],"balance_after":312792,"source":{"system":"sec-edgar","filing":"0001127602-19-009549","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/62709/000112760219009549/form4.xml","form_type":"4"}},{"id":3630607,"issuer":{"id":1501,"kind":"organization","name":"MARSH & MCLENNAN COMPANIES, INC.","symbol":"MRSH"},"owners":[{"id":129781,"kind":"person","name":"Beshar Peter J","position":1,"cik":"0001309593","reported_name":"Beshar Peter J","relationship":{"officer":true,"officer_title":"EVP and General Counsel"}}],"security":"Stock Options (Right to Buy)","published_at":"2019-02-27T21:13:48.000Z","date":"2019-02-25","kind":"exercise","acquired":false,"shares":270619,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan previously adopted by the Reporting Person."},{"field":"kind","element":"transactionCoding","label":"F2","text":"On February 25, 2019, Mr. Beshar exercised 270,619 options that were granted to him in 2010 and thereby increased his net ownership of MMC common stock by 78,225 from 216,957 to 295,182 shares. 124,739 shares were used to satisfy the exercise price and applicable taxes on 202,964 options in an exempt transaction."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"These options were granted on February 22, 2010 and vested in four equal annual installments on February 22nd of 2011, 2012, 2013 and 2014."}],"balance_after":0,"derivative":{"exercise_price":22.705,"expiration_date":"2020-02-21","underlying":"Common Stock","underlying_shares":270619},"source":{"system":"sec-edgar","filing":"0001127602-19-008678","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/62709/000112760219008678/form4.xml","form_type":"4"}},{"id":3630606,"issuer":{"id":1501,"kind":"organization","name":"MARSH & MCLENNAN COMPANIES, INC.","symbol":"MRSH"},"owners":[{"id":129781,"kind":"person","name":"Beshar Peter J","position":1,"cik":"0001309593","reported_name":"Beshar Peter J","relationship":{"officer":true,"officer_title":"EVP and General Counsel"}}],"security":"Common Stock","published_at":"2019-02-27T21:13:48.000Z","date":"2019-02-25","kind":"sale","acquired":false,"shares":67655,"price":93.138,"value":6301251.39,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan previously adopted by the Reporting Person."}],"balance_after":295182,"source":{"system":"sec-edgar","filing":"0001127602-19-008678","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/62709/000112760219008678/form4.xml","form_type":"4"}},{"id":3630605,"issuer":{"id":1501,"kind":"organization","name":"MARSH & MCLENNAN COMPANIES, INC.","symbol":"MRSH"},"owners":[{"id":129781,"kind":"person","name":"Beshar Peter J","position":1,"cik":"0001309593","reported_name":"Beshar Peter J","relationship":{"officer":true,"officer_title":"EVP and General Counsel"}}],"security":"Common Stock","published_at":"2019-02-27T21:13:48.000Z","date":"2019-02-25","kind":"tax_withholding","acquired":false,"shares":124739,"price":92.77,"value":11572037.03,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan previously adopted by the Reporting Person."},{"field":"kind","element":"transactionCoding","label":"F2","text":"On February 25, 2019, Mr. Beshar exercised 270,619 options that were granted to him in 2010 and thereby increased his net ownership of MMC common stock by 78,225 from 216,957 to 295,182 shares. 124,739 shares were used to satisfy the exercise price and applicable taxes on 202,964 options in an exempt transaction."}],"balance_after":362837,"source":{"system":"sec-edgar","filing":"0001127602-19-008678","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/62709/000112760219008678/form4.xml","form_type":"4"}},{"id":3630604,"issuer":{"id":1501,"kind":"organization","name":"MARSH & MCLENNAN COMPANIES, INC.","symbol":"MRSH"},"owners":[{"id":129781,"kind":"person","name":"Beshar Peter J","position":1,"cik":"0001309593","reported_name":"Beshar Peter J","relationship":{"officer":true,"officer_title":"EVP and General Counsel"}}],"security":"Common Stock","published_at":"2019-02-27T21:13:48.000Z","date":"2019-02-25","kind":"exercise","acquired":true,"shares":270619,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan previously adopted by the Reporting Person."},{"field":"kind","element":"transactionCoding","label":"F2","text":"On February 25, 2019, Mr. Beshar exercised 270,619 options that were granted to him in 2010 and thereby increased his net ownership of MMC common stock by 78,225 from 216,957 to 295,182 shares. 124,739 shares were used to satisfy the exercise price and applicable taxes on 202,964 options in an exempt transaction."}],"balance_after":487576,"source":{"system":"sec-edgar","filing":"0001127602-19-008678","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/62709/000112760219008678/form4.xml","form_type":"4"}},{"id":3644173,"issuer":{"id":1501,"kind":"organization","name":"MARSH & MCLENNAN COMPANIES, INC.","symbol":"MRSH"},"owners":[{"id":129781,"kind":"person","name":"Beshar Peter J","position":1,"cik":"0001309593","reported_name":"Beshar Peter J","relationship":{"officer":true,"officer_title":"EVP and General Counsel"}}],"security":"Restricted Stock Units","published_at":"2019-02-21T21:18:26.000Z","date":"2019-02-19","kind":"grant","acquired":true,"shares":9519,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"The security converts to Marsh & McLennan Companies common stock on a 1-for-1 basis."},{"field":"kind","element":"transactionCoding","label":"F5","text":"These restricted stock units relate to performance stock units that were granted on February 22, 2016 for the performance period 2016-2018. The performance factor for these performance stock units was determined on February 19, 2019."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"Not Applicable."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"Not Applicable."}],"balance_after":30884,"derivative":{"underlying":"Common Stock","underlying_shares":9519},"source":{"system":"sec-edgar","filing":"0001127602-19-007532","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/62709/000112760219007532/form4.xml","form_type":"4"}},{"id":3644172,"issuer":{"id":1501,"kind":"organization","name":"MARSH & MCLENNAN COMPANIES, INC.","symbol":"MRSH"},"owners":[{"id":129781,"kind":"person","name":"Beshar Peter J","position":1,"cik":"0001309593","reported_name":"Beshar Peter J","relationship":{"officer":true,"officer_title":"EVP and General Counsel"}}],"security":"Restricted Stock Units","published_at":"2019-02-21T21:18:26.000Z","date":"2019-02-19","kind":"grant","acquired":true,"shares":6196,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"The security converts to Marsh & McLennan Companies common stock on a 1-for-1 basis."},{"field":"kind","element":"transactionCoding","label":"F3","text":"These restricted stock units vest in three equal annual installments on February 28th of 2020, 2021 and 2022."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"Not Applicable."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"Not Applicable."}],"balance_after":21365,"derivative":{"underlying":"Common Stock","underlying_shares":6196},"source":{"system":"sec-edgar","filing":"0001127602-19-007532","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/62709/000112760219007532/form4.xml","form_type":"4"}},{"id":3644171,"issuer":{"id":1501,"kind":"organization","name":"MARSH & MCLENNAN COMPANIES, INC.","symbol":"MRSH"},"owners":[{"id":129781,"kind":"person","name":"Beshar Peter J","position":1,"cik":"0001309593","reported_name":"Beshar Peter J","relationship":{"officer":true,"officer_title":"EVP and General Counsel"}}],"security":"Stock Options (Right to Buy)","published_at":"2019-02-21T21:18:26.000Z","date":"2019-02-19","kind":"grant","acquired":true,"shares":63096,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"These options were granted on February 19, 2019 and vest in four equal annual installments on February 19th of 2020, 2021, 2022 and 2023."}],"balance_after":63096,"derivative":{"exercise_price":90.785,"expiration_date":"2029-02-18","underlying":"Common Stock","underlying_shares":63096},"source":{"system":"sec-edgar","filing":"0001127602-19-007532","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/62709/000112760219007532/form4.xml","form_type":"4"}},{"id":3665160,"issuer":{"id":1501,"kind":"organization","name":"MARSH & MCLENNAN COMPANIES, INC.","symbol":"MRSH"},"owners":[{"id":129781,"kind":"person","name":"Beshar Peter J","position":1,"cik":"0001309593","reported_name":"Beshar Peter J","relationship":{"officer":true,"officer_title":"EVP and General Counsel"}}],"security":"Common Stock","published_at":"2019-02-12T21:17:02.000Z","date":"2018-03-23","kind":"gift","acquired":false,"shares":23900,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":216957,"source":{"system":"sec-edgar","filing":"0001127602-19-005367","document":"form5.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/62709/000112760219005367/form5.xml","form_type":"5"}},{"id":4009612,"issuer":{"id":1501,"kind":"organization","name":"MARSH & MCLENNAN COMPANIES, INC.","symbol":"MRSH"},"owners":[{"id":129781,"kind":"person","name":"Beshar Peter J","position":1,"cik":"0001309593","reported_name":"Beshar Peter J","relationship":{"officer":true,"officer_title":"EVP and General Counsel"}}],"security":"Common Stock","published_at":"2018-03-07T21:49:01.000Z","date":"2018-03-05","kind":"sale","acquired":false,"shares":10567,"price":81.747,"value":863820.549,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan previously adopted by the Reporting Person."}],"balance_after":240857,"source":{"system":"sec-edgar","filing":"0001127602-18-010584","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/62709/000112760218010584/form4.xml","form_type":"4"}},{"id":4022835,"issuer":{"id":1501,"kind":"organization","name":"MARSH & MCLENNAN COMPANIES, INC.","symbol":"MRSH"},"owners":[{"id":129781,"kind":"person","name":"Beshar Peter J","position":1,"cik":"0001309593","reported_name":"Beshar Peter J","relationship":{"officer":true,"officer_title":"EVP and General Counsel"}}],"security":"Restricted Stock Units","published_at":"2018-03-02T21:04:50.000Z","date":"2018-02-28","kind":"exercise","acquired":false,"shares":20711,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"The security converts to Marsh & McLennan Companies common stock on a 1-for-1 basis."},{"field":"kind","element":"transactionCoding","label":"F1","text":"Vesting and distribution to reporting person of 20,711 shares underlying restricted stock units of which 10,144 were withheld by Marsh & McLennan Companies to cover applicable taxes. These 20,711 shares underlying restricted stock units relate to 3,299 restricted stock units that were granted on February 23, 2015, 11,580 restricted stock units relating to performance stock units that were granted on February 23, 2015 for the performance period 2015-2017, 3,271 restricted stock units that were granted on February 22, 2016 and 2,561 restricted stock units that were granted on February 22, 2017."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"Not Applicable."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"Not Applicable."}],"balance_after":15169,"derivative":{"underlying":"Common Stock","underlying_shares":20711},"source":{"system":"sec-edgar","filing":"0001127602-18-009634","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/62709/000112760218009634/form4.xml","form_type":"4"}},{"id":4022834,"issuer":{"id":1501,"kind":"organization","name":"MARSH & MCLENNAN COMPANIES, INC.","symbol":"MRSH"},"owners":[{"id":129781,"kind":"person","name":"Beshar Peter J","position":1,"cik":"0001309593","reported_name":"Beshar Peter J","relationship":{"officer":true,"officer_title":"EVP and General Counsel"}}],"security":"Common Stock","published_at":"2018-03-02T21:04:50.000Z","date":"2018-02-28","kind":"tax_withholding","acquired":false,"shares":10144,"price":84.87,"value":860921.28,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Vesting and distribution to reporting person of 20,711 shares underlying restricted stock units of which 10,144 were withheld by Marsh & McLennan Companies to cover applicable taxes. These 20,711 shares underlying restricted stock units relate to 3,299 restricted stock units that were granted on February 23, 2015, 11,580 restricted stock units relating to performance stock units that were granted on February 23, 2015 for the performance period 2015-2017, 3,271 restricted stock units that were granted on February 22, 2016 and 2,561 restricted stock units that were granted on February 22, 2017."}],"balance_after":251424,"source":{"system":"sec-edgar","filing":"0001127602-18-009634","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/62709/000112760218009634/form4.xml","form_type":"4"}},{"id":4022833,"issuer":{"id":1501,"kind":"organization","name":"MARSH & MCLENNAN COMPANIES, INC.","symbol":"MRSH"},"owners":[{"id":129781,"kind":"person","name":"Beshar Peter J","position":1,"cik":"0001309593","reported_name":"Beshar Peter J","relationship":{"officer":true,"officer_title":"EVP and General Counsel"}}],"security":"Common Stock","published_at":"2018-03-02T21:04:50.000Z","date":"2018-02-28","kind":"exercise","acquired":true,"shares":20711,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Vesting and distribution to reporting person of 20,711 shares underlying restricted stock units of which 10,144 were withheld by Marsh & McLennan Companies to cover applicable taxes. These 20,711 shares underlying restricted stock units relate to 3,299 restricted stock units that were granted on February 23, 2015, 11,580 restricted stock units relating to performance stock units that were granted on February 23, 2015 for the performance period 2015-2017, 3,271 restricted stock units that were granted on February 22, 2016 and 2,561 restricted stock units that were granted on February 22, 2017."}],"balance_after":261568,"source":{"system":"sec-edgar","filing":"0001127602-18-009634","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/62709/000112760218009634/form4.xml","form_type":"4"}},{"id":4029219,"issuer":{"id":1501,"kind":"organization","name":"MARSH & MCLENNAN COMPANIES, INC.","symbol":"MRSH"},"owners":[{"id":129781,"kind":"person","name":"Beshar Peter J","position":1,"cik":"0001309593","reported_name":"Beshar Peter J","relationship":{"officer":true,"officer_title":"EVP and General Counsel"}}],"security":"Stock Options (Right to Buy)","published_at":"2018-02-28T21:12:32.000Z","date":"2018-02-26","kind":"exercise","acquired":false,"shares":135948,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan previously adopted by the Reporting Person."},{"field":"kind","element":"transactionCoding","label":"F2","text":"On February 26, 2018, Mr. Beshar exercised 135,948  options that were granted to him in 2009 and thereby increased his net ownership of MMC common stock by 53,569 from 187,288 to 240,857 shares. 82,379 shares were used to satisfy the exercise price and applicable taxes in an exempt transaction."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"These options were granted on February 23, 2009 and vested in four equal annual installments on February 23rd of 2010, 2011, 2012 and 2013."}],"balance_after":0,"derivative":{"exercise_price":19.045,"expiration_date":"2019-02-22","underlying":"Common Stock","underlying_shares":135948},"source":{"system":"sec-edgar","filing":"0001127602-18-009086","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/62709/000112760218009086/form4.xml","form_type":"4"}},{"id":4029218,"issuer":{"id":1501,"kind":"organization","name":"MARSH & MCLENNAN COMPANIES, INC.","symbol":"MRSH"},"owners":[{"id":129781,"kind":"person","name":"Beshar Peter J","position":1,"cik":"0001309593","reported_name":"Beshar Peter J","relationship":{"officer":true,"officer_title":"EVP and General Counsel"}}],"security":"Common Stock","published_at":"2018-02-28T21:12:32.000Z","date":"2018-02-26","kind":"tax_withholding","acquired":false,"shares":82379,"price":83.59,"value":6886060.61,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan previously adopted by the Reporting Person."},{"field":"kind","element":"transactionCoding","label":"F2","text":"On February 26, 2018, Mr. Beshar exercised 135,948  options that were granted to him in 2009 and thereby increased his net ownership of MMC common stock by 53,569 from 187,288 to 240,857 shares. 82,379 shares were used to satisfy the exercise price and applicable taxes in an exempt transaction."}],"balance_after":240857,"source":{"system":"sec-edgar","filing":"0001127602-18-009086","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/62709/000112760218009086/form4.xml","form_type":"4"}},{"id":4029217,"issuer":{"id":1501,"kind":"organization","name":"MARSH & MCLENNAN COMPANIES, INC.","symbol":"MRSH"},"owners":[{"id":129781,"kind":"person","name":"Beshar Peter J","position":1,"cik":"0001309593","reported_name":"Beshar Peter J","relationship":{"officer":true,"officer_title":"EVP and General Counsel"}}],"security":"Common Stock","published_at":"2018-02-28T21:12:32.000Z","date":"2018-02-26","kind":"exercise","acquired":true,"shares":135948,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan previously adopted by the Reporting Person."},{"field":"kind","element":"transactionCoding","label":"F2","text":"On February 26, 2018, Mr. Beshar exercised 135,948  options that were granted to him in 2009 and thereby increased his net ownership of MMC common stock by 53,569 from 187,288 to 240,857 shares. 82,379 shares were used to satisfy the exercise price and applicable taxes in an exempt transaction."}],"balance_after":323236,"source":{"system":"sec-edgar","filing":"0001127602-18-009086","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/62709/000112760218009086/form4.xml","form_type":"4"}},{"id":4039051,"issuer":{"id":1501,"kind":"organization","name":"MARSH & MCLENNAN COMPANIES, INC.","symbol":"MRSH"},"owners":[{"id":129781,"kind":"person","name":"Beshar Peter J","position":1,"cik":"0001309593","reported_name":"Beshar Peter J","relationship":{"officer":true,"officer_title":"EVP and General Counsel"}}],"security":"Restricted Stock Units","published_at":"2018-02-23T21:03:01.000Z","date":"2018-02-21","kind":"grant","acquired":true,"shares":11580,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"The security converts to Marsh & McLennan Companies common stock on a 1-for-1 basis."},{"field":"kind","element":"transactionCoding","label":"F5","text":"These restricted stock units relate to performance stock units that were granted on February 23, 2015 for the performance period 2015-2017. The performance factor for these performance stock units was determined on February 21, 2018."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"Not Applicable."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"Not Applicable."}],"balance_after":35880,"derivative":{"underlying":"Common Stock","underlying_shares":11580},"source":{"system":"sec-edgar","filing":"0001127602-18-008030","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/62709/000112760218008030/form4.xml","form_type":"4"}},{"id":4039050,"issuer":{"id":1501,"kind":"organization","name":"MARSH & MCLENNAN COMPANIES, INC.","symbol":"MRSH"},"owners":[{"id":129781,"kind":"person","name":"Beshar Peter J","position":1,"cik":"0001309593","reported_name":"Beshar Peter J","relationship":{"officer":true,"officer_title":"EVP and General Counsel"}}],"security":"Restricted Stock Units","published_at":"2018-02-23T21:03:01.000Z","date":"2018-02-21","kind":"grant","acquired":true,"shares":6774,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"The security converts to Marsh & McLennan Companies common stock on a 1-for-1 basis."},{"field":"kind","element":"transactionCoding","label":"F3","text":"These restricted stock units vest in three equal annual installments on February 28th of 2019, 2020 and 2021."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"Not Applicable."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"Not Applicable."}],"balance_after":24300,"derivative":{"underlying":"Common Stock","underlying_shares":6774},"source":{"system":"sec-edgar","filing":"0001127602-18-008030","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/62709/000112760218008030/form4.xml","form_type":"4"}},{"id":4039049,"issuer":{"id":1501,"kind":"organization","name":"MARSH & MCLENNAN COMPANIES, INC.","symbol":"MRSH"},"owners":[{"id":129781,"kind":"person","name":"Beshar Peter J","position":1,"cik":"0001309593","reported_name":"Beshar Peter J","relationship":{"officer":true,"officer_title":"EVP and General Counsel"}}],"security":"Stock Options (Right to Buy)","published_at":"2018-02-23T21:03:01.000Z","date":"2018-02-21","kind":"grant","acquired":true,"shares":61510,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"These options were granted on February 21, 2018 and vest in four equal annual installments on February 21st of 2019, 2020, 2021 and 2022."}],"balance_after":61510,"derivative":{"exercise_price":83.046,"expiration_date":"2028-02-20","underlying":"Common Stock","underlying_shares":61510},"source":{"system":"sec-edgar","filing":"0001127602-18-008030","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/62709/000112760218008030/form4.xml","form_type":"4"}},{"id":4125734,"issuer":{"id":1501,"kind":"organization","name":"MARSH & MCLENNAN COMPANIES, INC.","symbol":"MRSH"},"owners":[{"id":129781,"kind":"person","name":"Beshar Peter J","position":1,"cik":"0001309593","reported_name":"Beshar Peter J","relationship":{"officer":true,"officer_title":"EVP and General Counsel"}}],"security":"Stock Options (Right to Buy)","published_at":"2017-12-20T21:31:04.000Z","date":"2017-12-19","kind":"exercise","acquired":false,"shares":150000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Mr. Beshar received an option grant covering 285,948 shares in 2009. On December 19, 2017, Mr. Beshar exercised 150,000 options from this grant and thereby increased his net ownership of MMC common stock by 56,002 from 131,286 to 187,288 shares. 93,998 shares were used to satisfy the exercise price and applicable taxes in an exempt transaction."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"These options were granted on February 23, 2009 and vested in four equal annual installments on February 23rd of 2010, 2011, 2012 and 2013."}],"balance_after":135948,"derivative":{"exercise_price":19.045,"expiration_date":"2019-02-22","underlying":"Common Stock","underlying_shares":150000},"source":{"system":"sec-edgar","filing":"0001127602-17-035274","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/62709/000112760217035274/form4.xml","form_type":"4"}},{"id":4125733,"issuer":{"id":1501,"kind":"organization","name":"MARSH & MCLENNAN COMPANIES, INC.","symbol":"MRSH"},"owners":[{"id":129781,"kind":"person","name":"Beshar Peter J","position":1,"cik":"0001309593","reported_name":"Beshar Peter J","relationship":{"officer":true,"officer_title":"EVP and General Counsel"}}],"security":"Common Stock","published_at":"2017-12-20T21:31:04.000Z","date":"2017-12-19","kind":"tax_withholding","acquired":false,"shares":93998,"price":83.12,"value":7813113.76,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Mr. Beshar received an option grant covering 285,948 shares in 2009. On December 19, 2017, Mr. Beshar exercised 150,000 options from this grant and thereby increased his net ownership of MMC common stock by 56,002 from 131,286 to 187,288 shares. 93,998 shares were used to satisfy the exercise price and applicable taxes in an exempt transaction."}],"balance_after":187288,"source":{"system":"sec-edgar","filing":"0001127602-17-035274","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/62709/000112760217035274/form4.xml","form_type":"4"}},{"id":4125732,"issuer":{"id":1501,"kind":"organization","name":"MARSH & MCLENNAN COMPANIES, INC.","symbol":"MRSH"},"owners":[{"id":129781,"kind":"person","name":"Beshar Peter J","position":1,"cik":"0001309593","reported_name":"Beshar Peter J","relationship":{"officer":true,"officer_title":"EVP and General Counsel"}}],"security":"Common Stock","published_at":"2017-12-20T21:31:04.000Z","date":"2017-12-19","kind":"exercise","acquired":true,"shares":150000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Mr. Beshar received an option grant covering 285,948 shares in 2009. On December 19, 2017, Mr. Beshar exercised 150,000 options from this grant and thereby increased his net ownership of MMC common stock by 56,002 from 131,286 to 187,288 shares. 93,998 shares were used to satisfy the exercise price and applicable taxes in an exempt transaction."}],"balance_after":281286,"source":{"system":"sec-edgar","filing":"0001127602-17-035274","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/62709/000112760217035274/form4.xml","form_type":"4"}},{"id":4125731,"issuer":{"id":1501,"kind":"organization","name":"MARSH & MCLENNAN COMPANIES, INC.","symbol":"MRSH"},"owners":[{"id":129781,"kind":"person","name":"Beshar Peter J","position":1,"cik":"0001309593","reported_name":"Beshar Peter J","relationship":{"officer":true,"officer_title":"EVP and General Counsel"}}],"security":"Common Stock","published_at":"2017-12-20T21:31:04.000Z","date":"2017-12-12","kind":"gift","acquired":false,"shares":1852,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":131286,"source":{"system":"sec-edgar","filing":"0001127602-17-035274","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/62709/000112760217035274/form4.xml","form_type":"4"}},{"id":4125730,"issuer":{"id":1501,"kind":"organization","name":"MARSH & MCLENNAN COMPANIES, INC.","symbol":"MRSH"},"owners":[{"id":129781,"kind":"person","name":"Beshar Peter J","position":1,"cik":"0001309593","reported_name":"Beshar Peter J","relationship":{"officer":true,"officer_title":"EVP and General Counsel"}}],"security":"Common Stock","published_at":"2017-12-20T21:31:04.000Z","date":"2017-05-24","kind":"gift","acquired":false,"shares":340,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":133138,"source":{"system":"sec-edgar","filing":"0001127602-17-035274","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/62709/000112760217035274/form4.xml","form_type":"4"}},{"id":4125729,"issuer":{"id":1501,"kind":"organization","name":"MARSH & MCLENNAN COMPANIES, INC.","symbol":"MRSH"},"owners":[{"id":129781,"kind":"person","name":"Beshar Peter J","position":1,"cik":"0001309593","reported_name":"Beshar Peter J","relationship":{"officer":true,"officer_title":"EVP and General Counsel"}}],"security":"Common Stock","published_at":"2017-12-20T21:31:04.000Z","date":"2017-03-24","kind":"gift","acquired":false,"shares":470,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":133478,"source":{"system":"sec-edgar","filing":"0001127602-17-035274","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/62709/000112760217035274/form4.xml","form_type":"4"}},{"id":4125728,"issuer":{"id":1501,"kind":"organization","name":"MARSH & MCLENNAN COMPANIES, INC.","symbol":"MRSH"},"owners":[{"id":129781,"kind":"person","name":"Beshar Peter J","position":1,"cik":"0001309593","reported_name":"Beshar Peter J","relationship":{"officer":true,"officer_title":"EVP and General Counsel"}}],"security":"Common Stock","published_at":"2017-12-20T21:31:04.000Z","date":"2017-03-23","kind":"gift","acquired":false,"shares":270,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":133948,"source":{"system":"sec-edgar","filing":"0001127602-17-035274","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/62709/000112760217035274/form4.xml","form_type":"4"}},{"id":4399465,"issuer":{"id":1501,"kind":"organization","name":"MARSH & MCLENNAN COMPANIES, INC.","symbol":"MRSH"},"owners":[{"id":129781,"kind":"person","name":"Beshar Peter J","position":1,"cik":"0001309593","reported_name":"Beshar Peter J","relationship":{"officer":true,"officer_title":"EVP and General Counsel"}}],"security":"Stock Options (Right to Buy)","published_at":"2017-03-07T21:23:27.000Z","date":"2017-03-03","kind":"exercise","acquired":false,"shares":76516,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan previously adopted by the Reporting Person."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"These options were granted on February 26, 2008 and vested in four equal annual installments on February 26th of 2009, 2010, 2011 and 2012. The first three installments of these options became exercisable on July 13, 2011, when the closing price of Marsh & McLennan Companies common stock had been at least 15% higher than the exercise price of the options for ten consecutive trading days after the options had vested. The final installment of these options became exercisable on March 10, 2012, when the closing price of Marsh & McLennan Companies common stock had been at least 15% higher than the exercise price of the options for ten consecutive trading days after the options had vested."}],"balance_after":0,"derivative":{"exercise_price":26.07,"expiration_date":"2018-02-25","underlying":"Common Stock","underlying_shares":76516},"source":{"system":"sec-edgar","filing":"0001127602-17-010590","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/62709/000112760217010590/form4.xml","form_type":"4"}},{"id":4399464,"issuer":{"id":1501,"kind":"organization","name":"MARSH & MCLENNAN COMPANIES, INC.","symbol":"MRSH"},"owners":[{"id":129781,"kind":"person","name":"Beshar Peter J","position":1,"cik":"0001309593","reported_name":"Beshar Peter J","relationship":{"officer":true,"officer_title":"EVP and General Counsel"}}],"security":"Common Stock","published_at":"2017-03-07T21:23:27.000Z","date":"2017-03-03","kind":"sale","acquired":false,"shares":87180,"price":74.105,"value":6460473.9,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan previously adopted by the Reporting Person."}],"balance_after":134218,"source":{"system":"sec-edgar","filing":"0001127602-17-010590","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/62709/000112760217010590/form4.xml","form_type":"4"}},{"id":4399463,"issuer":{"id":1501,"kind":"organization","name":"MARSH & MCLENNAN COMPANIES, INC.","symbol":"MRSH"},"owners":[{"id":129781,"kind":"person","name":"Beshar Peter J","position":1,"cik":"0001309593","reported_name":"Beshar Peter J","relationship":{"officer":true,"officer_title":"EVP and General Counsel"}}],"security":"Common Stock","published_at":"2017-03-07T21:23:27.000Z","date":"2017-03-03","kind":"exercise","acquired":true,"shares":76516,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan previously adopted by the Reporting Person."}],"balance_after":221398,"source":{"system":"sec-edgar","filing":"0001127602-17-010590","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/62709/000112760217010590/form4.xml","form_type":"4"}},{"id":4412579,"issuer":{"id":1501,"kind":"organization","name":"MARSH & MCLENNAN COMPANIES, INC.","symbol":"MRSH"},"owners":[{"id":129781,"kind":"person","name":"Beshar Peter J","position":1,"cik":"0001309593","reported_name":"Beshar Peter J","relationship":{"officer":true,"officer_title":"EVP and General Counsel"}}],"security":"Restricted Stock Units","published_at":"2017-03-02T21:16:25.000Z","date":"2017-02-28","kind":"exercise","acquired":false,"shares":24141,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"The security converts to Marsh & McLennan Companies common stock on a 1-for-1 basis."},{"field":"kind","element":"transactionCoding","label":"F1","text":"Vesting and distribution to reporting person of 24,141 shares underlying restricted stock units of which 13,477 were withheld by Marsh & McLennan Companies to cover applicable taxes. These 24,141 shares underlying restricted stock units relate to 3,820 restricted stock units that were granted on February 24, 2014, 13,751 restricted stock units relating to performance stock units that were granted on February 24, 2014 for the performance period 2014-2016, 3,299 restricted stock units that were granted on February 23, 2015, and 3,271 restricted stock units that were granted on February 22, 2016."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"Not Applicable."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"Not Applicable."}],"balance_after":17526,"derivative":{"underlying":"Common Stock","underlying_shares":24141},"source":{"system":"sec-edgar","filing":"0001127602-17-009688","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/62709/000112760217009688/form4.xml","form_type":"4"}},{"id":4412578,"issuer":{"id":1501,"kind":"organization","name":"MARSH & MCLENNAN COMPANIES, INC.","symbol":"MRSH"},"owners":[{"id":129781,"kind":"person","name":"Beshar Peter J","position":1,"cik":"0001309593","reported_name":"Beshar Peter J","relationship":{"officer":true,"officer_title":"EVP and General Counsel"}}],"security":"Common Stock","published_at":"2017-03-02T21:16:25.000Z","date":"2017-02-28","kind":"tax_withholding","acquired":false,"shares":13477,"price":73.28,"value":987594.56,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Vesting and distribution to reporting person of 24,141 shares underlying restricted stock units of which 13,477 were withheld by Marsh & McLennan Companies to cover applicable taxes. These 24,141 shares underlying restricted stock units relate to 3,820 restricted stock units that were granted on February 24, 2014, 13,751 restricted stock units relating to performance stock units that were granted on February 24, 2014 for the performance period 2014-2016, 3,299 restricted stock units that were granted on February 23, 2015, and 3,271 restricted stock units that were granted on February 22, 2016."}],"balance_after":144882,"source":{"system":"sec-edgar","filing":"0001127602-17-009688","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/62709/000112760217009688/form4.xml","form_type":"4"}},{"id":4412577,"issuer":{"id":1501,"kind":"organization","name":"MARSH & MCLENNAN COMPANIES, INC.","symbol":"MRSH"},"owners":[{"id":129781,"kind":"person","name":"Beshar Peter J","position":1,"cik":"0001309593","reported_name":"Beshar Peter J","relationship":{"officer":true,"officer_title":"EVP and General Counsel"}}],"security":"Common Stock","published_at":"2017-03-02T21:16:25.000Z","date":"2017-02-28","kind":"exercise","acquired":true,"shares":24141,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Vesting and distribution to reporting person of 24,141 shares underlying restricted stock units of which 13,477 were withheld by Marsh & McLennan Companies to cover applicable taxes. These 24,141 shares underlying restricted stock units relate to 3,820 restricted stock units that were granted on February 24, 2014, 13,751 restricted stock units relating to performance stock units that were granted on February 24, 2014 for the performance period 2014-2016, 3,299 restricted stock units that were granted on February 23, 2015, and 3,271 restricted stock units that were granted on February 22, 2016."}],"balance_after":158359,"source":{"system":"sec-edgar","filing":"0001127602-17-009688","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/62709/000112760217009688/form4.xml","form_type":"4"}},{"id":4426705,"issuer":{"id":1501,"kind":"organization","name":"MARSH & MCLENNAN COMPANIES, INC.","symbol":"MRSH"},"owners":[{"id":129781,"kind":"person","name":"Beshar Peter J","position":1,"cik":"0001309593","reported_name":"Beshar Peter J","relationship":{"officer":true,"officer_title":"EVP and General Counsel"}}],"security":"Restricted Stock Units","published_at":"2017-02-24T21:05:41.000Z","date":"2017-02-22","kind":"grant","acquired":true,"shares":13751,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"The security converts to Marsh & McLennan Companies common stock on a 1-for-1 basis."},{"field":"kind","element":"transactionCoding","label":"F5","text":"These restricted stock units relate to performance stock units that were granted on February 24, 2014 for the performance period 2014-2016. The performance factor for these performance stock units was determined on February 22, 2017."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"Not Applicable."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"Not Applicable."}],"balance_after":41667,"derivative":{"underlying":"Common Stock","underlying_shares":13751},"source":{"system":"sec-edgar","filing":"0001127602-17-008204","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/62709/000112760217008204/form4.xml","form_type":"4"}},{"id":4426704,"issuer":{"id":1501,"kind":"organization","name":"MARSH & MCLENNAN COMPANIES, INC.","symbol":"MRSH"},"owners":[{"id":129781,"kind":"person","name":"Beshar Peter J","position":1,"cik":"0001309593","reported_name":"Beshar Peter J","relationship":{"officer":true,"officer_title":"EVP and General Counsel"}}],"security":"Restricted Stock Units","published_at":"2017-02-24T21:05:41.000Z","date":"2017-02-22","kind":"grant","acquired":true,"shares":7685,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"The security converts to Marsh & McLennan Companies common stock on a 1-for-1 basis."},{"field":"kind","element":"transactionCoding","label":"F3","text":"These restricted stock units vest in three equal annual installments on February 28th of 2018, 2019 and 2020."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"Not Applicable."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"Not Applicable."}],"balance_after":27916,"derivative":{"underlying":"Common Stock","underlying_shares":7685},"source":{"system":"sec-edgar","filing":"0001127602-17-008204","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/62709/000112760217008204/form4.xml","form_type":"4"}},{"id":4426703,"issuer":{"id":1501,"kind":"organization","name":"MARSH & MCLENNAN COMPANIES, INC.","symbol":"MRSH"},"owners":[{"id":129781,"kind":"person","name":"Beshar Peter J","position":1,"cik":"0001309593","reported_name":"Beshar Peter J","relationship":{"officer":true,"officer_title":"EVP and General Counsel"}}],"security":"Stock Options (Right to Buy)","published_at":"2017-02-24T21:05:41.000Z","date":"2017-02-22","kind":"grant","acquired":true,"shares":74951,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"These options were granted on February 22, 2017 and vest in four equal annual installments on February 22nd of 2018, 2019, 2020 and 2021."}],"balance_after":74951,"derivative":{"exercise_price":73.195,"expiration_date":"2027-02-21","underlying":"Common Stock","underlying_shares":74951},"source":{"system":"sec-edgar","filing":"0001127602-17-008204","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/62709/000112760217008204/form4.xml","form_type":"4"}}]}