X0306 4 2018-08-07 false 0001437578 BRIGHT HORIZONS FAMILY SOLUTIONS INC. BFAM 0001553053 Alleva Lawrence M C/O BRIGHT HORIZONS FAMILY SOLUTIONS INC 200 TALCOTT AVENUE SOUTH WATERTOWN MA 02472 true false false false Common Stock 2018-08-07 4 M false 2272.00 22.00 A 7879.00 D Common Stock 2018-08-07 4 M false 3000.00 34.96 A 10879.00 D Common Stock 2018-08-07 4 S false 6424.00 109.81 D 4455.00 D Common Stock 2018-08-07 4 S false 1248.00 110.37 D 3207.00 D Option to Purchase Common Stock 34.96 2018-08-07 4 M false 3000.00 0.00 D 2020-05-22 Common Stock 3000.00 0.00 D Option to Purchase Common Stock 22.00 2018-08-07 4 M false 2272.00 0.00 D 2020-01-25 Common Stock 2272.00 0.00 D These trades were made pursuant to a Rule 10b5-1 trading plan. This transaction was executed in multiple trades at prices ranging from $109.29 to $110.25. The price reported above reflects the weighted average price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected. This transaction was executed in multiple trades at prices ranging from $110.30 to $110.49. The price reported above reflects the weighted average price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected. The option to purchase shares is fully vested. /s/ Stephen Dreier, attorney-in-fact for Lawrence Alleva 2018-08-07