{"entity":{"type":"insider","cik":"0001353721","url":"/insider/0001353721","json_url":"/insider/0001353721.json","name":"Kirshbaum Michael T","name_source":"as-filed","also_issuer":false,"cross_url":null},"coverage_statement":{"n_transactions":62,"n_filings":57,"first":"2007-06-01","last":"2016-12-22","span_basis":"filed_date"},"name_variants":[{"name":"Kirshbaum Michael T","source":"filing","n_filings":57,"first_seen":"2007-06-01","last_seen":"2016-12-22"}],"transactions":[{"id":2517865,"accession":"0001209191-16-156608","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001209191-16-156608","line_url":"/filing/0001209191-16-156608#line-2","is_derivative":false,"issuer_cik":"0001157377","issuer_name":"ADVISORY BOARD CO","issuer_ticker":"ABCO","issuer_name_source":null,"issuer_url":"/issuer/0001157377","owner_cik":"0001353721","owner_name":"Kirshbaum Michael T","owner_display_name":"Kirshbaum Michael T","owner_url":"/insider/0001353721","role":"Officer (Chief Financial Officer)","role_mark":"O","role_mark_label":"Officer (Chief Financial Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Financial Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":2400.0,"shares_display":"2,400","price_per_share":32.92,"price_display":"32.92","price_state":"stated","total_value":79008.0,"total_display":"79,008.00","total_whole":"79,008","shares_owned_after":43103.0,"shares_owned_after_display":"43,103","ownership_form":"D","is_10b5_1":null,"transaction_date":"2016-12-20","filed_date":"2016-12-22","scope":"insider"},{"id":2110769,"accession":"0001209191-16-151883","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001209191-16-151883","line_url":"/filing/0001209191-16-151883#line-2","is_derivative":false,"issuer_cik":"0001157377","issuer_name":"ADVISORY BOARD CO","issuer_ticker":"ABCO","issuer_name_source":null,"issuer_url":"/issuer/0001157377","owner_cik":"0001353721","owner_name":"Kirshbaum Michael T","owner_display_name":"Kirshbaum Michael T","owner_url":"/insider/0001353721","role":"Officer (Chief Financial Officer)","role_mark":"O","role_mark_label":"Officer (Chief Financial Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Financial Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":2400.0,"shares_display":"2,400","price_per_share":36.05,"price_display":"36.05","price_state":"stated","total_value":86520.0,"total_display":"86,520.00","total_whole":"86,520","shares_owned_after":43103.0,"shares_owned_after_display":"43,103","ownership_form":"D","is_10b5_1":null,"transaction_date":"2016-11-21","filed_date":"2016-11-23","scope":"insider"},{"id":3003530,"accession":"0001209191-16-146804","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001209191-16-146804","line_url":"/filing/0001209191-16-146804#line-2","is_derivative":false,"issuer_cik":"0001157377","issuer_name":"ADVISORY BOARD CO","issuer_ticker":"ABCO","issuer_name_source":null,"issuer_url":"/issuer/0001157377","owner_cik":"0001353721","owner_name":"Kirshbaum Michael T","owner_display_name":"Kirshbaum Michael T","owner_url":"/insider/0001353721","role":"Officer (Chief Financial Officer)","role_mark":"O","role_mark_label":"Officer (Chief Financial Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Financial Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":2400.0,"shares_display":"2,400","price_per_share":42.8,"price_display":"42.80","price_state":"stated","total_value":102720.0,"total_display":"102,720.00","total_whole":"102,720","shares_owned_after":43103.0,"shares_owned_after_display":"43,103","ownership_form":"D","is_10b5_1":null,"transaction_date":"2016-10-20","filed_date":"2016-10-24","scope":"insider"},{"id":2786647,"accession":"0001209191-16-142413","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001209191-16-142413","line_url":"/filing/0001209191-16-142413#line-2","is_derivative":false,"issuer_cik":"0001157377","issuer_name":"ADVISORY BOARD CO","issuer_ticker":"ABCO","issuer_name_source":null,"issuer_url":"/issuer/0001157377","owner_cik":"0001353721","owner_name":"Kirshbaum Michael T","owner_display_name":"Kirshbaum Michael T","owner_url":"/insider/0001353721","role":"Officer (Chief Financial Officer)","role_mark":"O","role_mark_label":"Officer (Chief Financial Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Financial Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":2400.0,"shares_display":"2,400","price_per_share":43.01,"price_display":"43.01","price_state":"stated","total_value":103224.0,"total_display":"103,224.00","total_whole":"103,224","shares_owned_after":43103.0,"shares_owned_after_display":"43,103","ownership_form":"D","is_10b5_1":null,"transaction_date":"2016-09-20","filed_date":"2016-09-22","scope":"insider"},{"id":3257207,"accession":"0001209191-16-138491","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001209191-16-138491","line_url":"/filing/0001209191-16-138491#line-1","is_derivative":false,"issuer_cik":"0001157377","issuer_name":"ADVISORY BOARD CO","issuer_ticker":"ABCO","issuer_name_source":null,"issuer_url":"/issuer/0001157377","owner_cik":"0001353721","owner_name":"Kirshbaum Michael T","owner_display_name":"Kirshbaum Michael T","owner_url":"/insider/0001353721","role":"Officer (Chief Financial Officer)","role_mark":"O","role_mark_label":"Officer (Chief Financial Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Financial Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":2400.0,"shares_display":"2,400","price_per_share":41.53,"price_display":"41.53","price_state":"stated","total_value":99672.0,"total_display":"99,672.00","total_whole":"99,672","shares_owned_after":40703.0,"shares_owned_after_display":"40,703","ownership_form":"D","is_10b5_1":null,"transaction_date":"2016-08-22","filed_date":"2016-08-24","scope":"insider"},{"id":8926199,"accession":"0001209191-15-061151","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001209191-15-061151","line_url":"/filing/0001209191-15-061151#line-2","is_derivative":false,"issuer_cik":"0001157377","issuer_name":"ADVISORY BOARD CO","issuer_ticker":"ABCO","issuer_name_source":null,"issuer_url":"/issuer/0001157377","owner_cik":"0001353721","owner_name":"Kirshbaum Michael T","owner_display_name":"Kirshbaum Michael T","owner_url":"/insider/0001353721","role":"Officer (Chief Financial Officer)","role_mark":"O","role_mark_label":"Officer (Chief Financial Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Financial Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":5250.0,"shares_display":"5,250","price_per_share":57.94,"price_display":"57.94","price_state":"stated","total_value":304185.0,"total_display":"304,185.00","total_whole":"304,185","shares_owned_after":31772.0,"shares_owned_after_display":"31,772","ownership_form":"D","is_10b5_1":null,"transaction_date":"2015-07-15","filed_date":"2015-07-16","scope":"insider"},{"id":8253354,"accession":"0001209191-15-054184","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001209191-15-054184","line_url":"/filing/0001209191-15-054184#line-2","is_derivative":false,"issuer_cik":"0001157377","issuer_name":"ADVISORY BOARD CO","issuer_ticker":"ABCO","issuer_name_source":null,"issuer_url":"/issuer/0001157377","owner_cik":"0001353721","owner_name":"Kirshbaum Michael T","owner_display_name":"Kirshbaum Michael T","owner_url":"/insider/0001353721","role":"Officer (Chief Financial Officer)","role_mark":"O","role_mark_label":"Officer (Chief Financial Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Financial Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":11191.0,"shares_display":"11,191","price_per_share":52.06,"price_display":"52.06","price_state":"stated","total_value":582603.46,"total_display":"582,603.46","total_whole":"582,603","shares_owned_after":31772.0,"shares_owned_after_display":"31,772","ownership_form":"D","is_10b5_1":null,"transaction_date":"2015-06-15","filed_date":"2015-06-17","scope":"insider"},{"id":8247177,"accession":"0001209191-15-020517","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001209191-15-020517","line_url":"/filing/0001209191-15-020517#line-2","is_derivative":false,"issuer_cik":"0001157377","issuer_name":"ADVISORY BOARD CO","issuer_ticker":"ABCO","issuer_name_source":null,"issuer_url":"/issuer/0001157377","owner_cik":"0001353721","owner_name":"Kirshbaum Michael T","owner_display_name":"Kirshbaum Michael T","owner_url":"/insider/0001353721","role":"Officer (Chief Financial Officer)","role_mark":"O","role_mark_label":"Officer (Chief Financial Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Financial Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":15059.0,"shares_display":"15,059","price_per_share":54.31,"price_display":"54.31","price_state":"stated","total_value":817854.29,"total_display":"817,854.29","total_whole":"817,854","shares_owned_after":32598.0,"shares_owned_after_display":"32,598","ownership_form":"D","is_10b5_1":null,"transaction_date":"2015-02-26","filed_date":"2015-03-02","scope":"insider"},{"id":6947659,"accession":"0001209191-14-028152","txn_seq":5,"anchor":"line-5","filing_url":"/filing/0001209191-14-028152","line_url":"/filing/0001209191-14-028152","is_derivative":false,"issuer_cik":"0001157377","issuer_name":"ADVISORY BOARD CO","issuer_ticker":"ABCO","issuer_name_source":null,"issuer_url":"/issuer/0001157377","owner_cik":"0001353721","owner_name":"Kirshbaum Michael T","owner_display_name":"Kirshbaum Michael T","owner_url":"/insider/0001353721","role":"Officer (Chief Financial Officer)","role_mark":"O","role_mark_label":"Officer (Chief Financial Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Financial Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":2625.0,"shares_display":"2,625","price_per_share":58.91323047619048,"price_display":"58.91","price_state":"stated","total_value":154647.23,"total_display":"154,647.23","total_whole":"154,647","shares_owned_after":22452.0,"shares_owned_after_display":"22,452","ownership_form":"D","is_10b5_1":null,"transaction_date":"2014-04-15","filed_date":"2014-04-17","scope":"insider","n_lines":2},{"id":6201567,"accession":"0001209191-14-021376","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001209191-14-021376","line_url":"/filing/0001209191-14-021376#line-2","is_derivative":false,"issuer_cik":"0001157377","issuer_name":"ADVISORY BOARD CO","issuer_ticker":"ABCO","issuer_name_source":null,"issuer_url":"/issuer/0001157377","owner_cik":"0001353721","owner_name":"Kirshbaum Michael T","owner_display_name":"Kirshbaum Michael T","owner_url":"/insider/0001353721","role":"Officer (Chief Financial Officer)","role_mark":"O","role_mark_label":"Officer (Chief Financial Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Financial Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":2625.0,"shares_display":"2,625","price_per_share":67.26,"price_display":"67.26","price_state":"stated","total_value":176557.5,"total_display":"176,557.50","total_whole":"176,558","shares_owned_after":20438.0,"shares_owned_after_display":"20,438","ownership_form":"D","is_10b5_1":null,"transaction_date":"2014-03-17","filed_date":"2014-03-18","scope":"insider"},{"id":6755089,"accession":"0001209191-14-011588","txn_seq":3,"anchor":"line-3","filing_url":"/filing/0001209191-14-011588","line_url":"/filing/0001209191-14-011588","is_derivative":false,"issuer_cik":"0001157377","issuer_name":"ADVISORY BOARD CO","issuer_ticker":"ABCO","issuer_name_source":null,"issuer_url":"/issuer/0001157377","owner_cik":"0001353721","owner_name":"Kirshbaum Michael T","owner_display_name":"Kirshbaum Michael T","owner_url":"/insider/0001353721","role":"Officer (Chief Financial Officer)","role_mark":"O","role_mark_label":"Officer (Chief Financial Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Financial Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":2625.0,"shares_display":"2,625","price_per_share":61.82904761904762,"price_display":"61.83","price_state":"stated","total_value":162301.25,"total_display":"162,301.25","total_whole":"162,301","shares_owned_after":21438.0,"shares_owned_after_display":"21,438","ownership_form":"D","is_10b5_1":null,"transaction_date":"2014-02-18","filed_date":"2014-02-19","scope":"insider","n_lines":2},{"id":6464456,"accession":"0001209191-14-003560","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001209191-14-003560","line_url":"/filing/0001209191-14-003560#line-2","is_derivative":false,"issuer_cik":"0001157377","issuer_name":"ADVISORY BOARD CO","issuer_ticker":"ABCO","issuer_name_source":null,"issuer_url":"/issuer/0001157377","owner_cik":"0001353721","owner_name":"Kirshbaum Michael T","owner_display_name":"Kirshbaum Michael T","owner_url":"/insider/0001353721","role":"Officer (Chief Financial Officer)","role_mark":"O","role_mark_label":"Officer (Chief Financial Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Financial Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":2625.0,"shares_display":"2,625","price_per_share":61.12,"price_display":"61.12","price_state":"stated","total_value":160440.0,"total_display":"160,440.00","total_whole":"160,440","shares_owned_after":20438.0,"shares_owned_after_display":"20,438","ownership_form":"D","is_10b5_1":null,"transaction_date":"2014-01-15","filed_date":"2014-01-16","scope":"insider"},{"id":5482795,"accession":"0001209191-13-057663","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001209191-13-057663","line_url":"/filing/0001209191-13-057663#line-2","is_derivative":false,"issuer_cik":"0001157377","issuer_name":"ADVISORY BOARD CO","issuer_ticker":"ABCO","issuer_name_source":null,"issuer_url":"/issuer/0001157377","owner_cik":"0001353721","owner_name":"Kirshbaum Michael T","owner_display_name":"Kirshbaum Michael T","owner_url":"/insider/0001353721","role":"Officer (Chief Financial Officer)","role_mark":"O","role_mark_label":"Officer (Chief Financial Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Financial Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":3000.0,"shares_display":"3,000","price_per_share":61.12,"price_display":"61.12","price_state":"stated","total_value":183360.0,"total_display":"183,360.00","total_whole":"183,360","shares_owned_after":20523.0,"shares_owned_after_display":"20,523","ownership_form":"D","is_10b5_1":null,"transaction_date":"2013-12-16","filed_date":"2013-12-18","scope":"insider"},{"id":4271476,"accession":"0001209191-13-052773","txn_seq":3,"anchor":"line-3","filing_url":"/filing/0001209191-13-052773","line_url":"/filing/0001209191-13-052773","is_derivative":false,"issuer_cik":"0001157377","issuer_name":"ADVISORY BOARD CO","issuer_ticker":"ABCO","issuer_name_source":null,"issuer_url":"/issuer/0001157377","owner_cik":"0001353721","owner_name":"Kirshbaum Michael T","owner_display_name":"Kirshbaum Michael T","owner_url":"/insider/0001353721","role":"Officer (Chief Financial Officer)","role_mark":"O","role_mark_label":"Officer (Chief Financial Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Financial Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":3000.0,"shares_display":"3,000","price_per_share":61.48133333333333,"price_display":"61.48","price_state":"stated","total_value":184444.0,"total_display":"184,444.00","total_whole":"184,444","shares_owned_after":20723.0,"shares_owned_after_display":"20,723","ownership_form":"D","is_10b5_1":null,"transaction_date":"2013-11-15","filed_date":"2013-11-18","scope":"insider","n_lines":2},{"id":5134429,"accession":"0001209191-13-048643","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001209191-13-048643","line_url":"/filing/0001209191-13-048643#line-2","is_derivative":false,"issuer_cik":"0001157377","issuer_name":"ADVISORY BOARD CO","issuer_ticker":"ABCO","issuer_name_source":null,"issuer_url":"/issuer/0001157377","owner_cik":"0001353721","owner_name":"Kirshbaum Michael T","owner_display_name":"Kirshbaum Michael T","owner_url":"/insider/0001353721","role":"Officer (Chief Financial Officer)","role_mark":"O","role_mark_label":"Officer (Chief Financial Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Financial Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":3000.0,"shares_display":"3,000","price_per_share":65.07,"price_display":"65.07","price_state":"stated","total_value":195210.0,"total_display":"195,210.00","total_whole":"195,210","shares_owned_after":20523.0,"shares_owned_after_display":"20,523","ownership_form":"D","is_10b5_1":null,"transaction_date":"2013-10-15","filed_date":"2013-10-17","scope":"insider"},{"id":5562431,"accession":"0001209191-13-044707","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001209191-13-044707","line_url":"/filing/0001209191-13-044707#line-2","is_derivative":false,"issuer_cik":"0001157377","issuer_name":"ADVISORY BOARD CO","issuer_ticker":"ABCO","issuer_name_source":null,"issuer_url":"/issuer/0001157377","owner_cik":"0001353721","owner_name":"Kirshbaum Michael T","owner_display_name":"Kirshbaum Michael T","owner_url":"/insider/0001353721","role":"Officer (Chief Financial Officer)","role_mark":"O","role_mark_label":"Officer (Chief Financial Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Financial Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":3000.0,"shares_display":"3,000","price_per_share":58.47,"price_display":"58.47","price_state":"stated","total_value":175410.0,"total_display":"175,410.00","total_whole":"175,410","shares_owned_after":20523.0,"shares_owned_after_display":"20,523","ownership_form":"D","is_10b5_1":null,"transaction_date":"2013-09-16","filed_date":"2013-09-18","scope":"insider"},{"id":4425782,"accession":"0001209191-13-041289","txn_seq":3,"anchor":"line-3","filing_url":"/filing/0001209191-13-041289","line_url":"/filing/0001209191-13-041289","is_derivative":false,"issuer_cik":"0001157377","issuer_name":"ADVISORY BOARD CO","issuer_ticker":"ABCO","issuer_name_source":null,"issuer_url":"/issuer/0001157377","owner_cik":"0001353721","owner_name":"Kirshbaum Michael T","owner_display_name":"Kirshbaum Michael T","owner_url":"/insider/0001353721","role":"Officer (Chief Financial Officer)","role_mark":"O","role_mark_label":"Officer (Chief Financial Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Financial Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":3000.0,"shares_display":"3,000","price_per_share":56.615,"price_display":"56.62","price_state":"stated","total_value":169845.0,"total_display":"169,845.00","total_whole":"169,845","shares_owned_after":20523.0,"shares_owned_after_display":"20,523","ownership_form":"D","is_10b5_1":null,"transaction_date":"2013-08-15","filed_date":"2013-08-19","scope":"insider","n_lines":2},{"id":5306101,"accession":"0001209191-13-036758","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001209191-13-036758","line_url":"/filing/0001209191-13-036758#line-2","is_derivative":false,"issuer_cik":"0001157377","issuer_name":"ADVISORY BOARD CO","issuer_ticker":"ABCO","issuer_name_source":null,"issuer_url":"/issuer/0001157377","owner_cik":"0001353721","owner_name":"Kirshbaum Michael T","owner_display_name":"Kirshbaum Michael T","owner_url":"/insider/0001353721","role":"Officer (Chief Financial Officer)","role_mark":"O","role_mark_label":"Officer (Chief Financial Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Financial Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":3000.0,"shares_display":"3,000","price_per_share":56.01,"price_display":"56.01","price_state":"stated","total_value":168030.0,"total_display":"168,030.00","total_whole":"168,030","shares_owned_after":20523.0,"shares_owned_after_display":"20,523","ownership_form":"D","is_10b5_1":null,"transaction_date":"2013-07-15","filed_date":"2013-07-16","scope":"insider"},{"id":5040757,"accession":"0001209191-13-032843","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001209191-13-032843","line_url":"/filing/0001209191-13-032843#line-2","is_derivative":false,"issuer_cik":"0001157377","issuer_name":"ADVISORY BOARD CO","issuer_ticker":"ABCO","issuer_name_source":null,"issuer_url":"/issuer/0001157377","owner_cik":"0001353721","owner_name":"Kirshbaum Michael T","owner_display_name":"Kirshbaum Michael T","owner_url":"/insider/0001353721","role":"Officer (Chief Financial Officer)","role_mark":"O","role_mark_label":"Officer (Chief Financial Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Financial Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":3000.0,"shares_display":"3,000","price_per_share":53.28,"price_display":"53.28","price_state":"stated","total_value":159840.0,"total_display":"159,840.00","total_whole":"159,840","shares_owned_after":20523.0,"shares_owned_after_display":"20,523","ownership_form":"D","is_10b5_1":null,"transaction_date":"2013-06-17","filed_date":"2013-06-19","scope":"insider"},{"id":4938075,"accession":"0001209191-13-027081","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001209191-13-027081","line_url":"/filing/0001209191-13-027081#line-2","is_derivative":false,"issuer_cik":"0001157377","issuer_name":"ADVISORY BOARD CO","issuer_ticker":"ABCO","issuer_name_source":null,"issuer_url":"/issuer/0001157377","owner_cik":"0001353721","owner_name":"Kirshbaum Michael T","owner_display_name":"Kirshbaum Michael T","owner_url":"/insider/0001353721","role":"Officer (Chief Financial Officer)","role_mark":"O","role_mark_label":"Officer (Chief Financial Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Financial Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":3000.0,"shares_display":"3,000","price_per_share":49.09,"price_display":"49.09","price_state":"stated","total_value":147270.0,"total_display":"147,270.00","total_whole":"147,270","shares_owned_after":19230.0,"shares_owned_after_display":"19,230","ownership_form":"D","is_10b5_1":null,"transaction_date":"2013-05-15","filed_date":"2013-05-17","scope":"insider"},{"id":4456502,"accession":"0001209191-13-021815","txn_seq":4,"anchor":"line-4","filing_url":"/filing/0001209191-13-021815","line_url":"/filing/0001209191-13-021815#line-4","is_derivative":false,"issuer_cik":"0001157377","issuer_name":"ADVISORY BOARD CO","issuer_ticker":"ABCO","issuer_name_source":null,"issuer_url":"/issuer/0001157377","owner_cik":"0001353721","owner_name":"Kirshbaum Michael T","owner_display_name":"Kirshbaum Michael T","owner_url":"/insider/0001353721","role":"Officer (Chief Financial Officer)","role_mark":"O","role_mark_label":"Officer (Chief Financial Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Financial Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":3000.0,"shares_display":"3,000","price_per_share":51.7,"price_display":"51.70","price_state":"stated","total_value":155100.0,"total_display":"155,100.00","total_whole":"155,100","shares_owned_after":17321.0,"shares_owned_after_display":"17,321","ownership_form":"D","is_10b5_1":null,"transaction_date":"2013-04-15","filed_date":"2013-04-17","scope":"insider"},{"id":4982941,"accession":"0001209191-13-017352","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001209191-13-017352","line_url":"/filing/0001209191-13-017352#line-2","is_derivative":false,"issuer_cik":"0001157377","issuer_name":"ADVISORY BOARD CO","issuer_ticker":"ABCO","issuer_name_source":null,"issuer_url":"/issuer/0001157377","owner_cik":"0001353721","owner_name":"Kirshbaum Michael T","owner_display_name":"Kirshbaum Michael T","owner_url":"/insider/0001353721","role":"Officer (Chief Financial Officer)","role_mark":"O","role_mark_label":"Officer (Chief Financial Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Financial Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":3000.0,"shares_display":"3,000","price_per_share":49.41,"price_display":"49.41","price_state":"stated","total_value":148230.0,"total_display":"148,230.00","total_whole":"148,230","shares_owned_after":15450.0,"shares_owned_after_display":"15,450","ownership_form":"D","is_10b5_1":null,"transaction_date":"2013-03-15","filed_date":"2013-03-19","scope":"insider"},{"id":4414985,"accession":"0001209191-13-009554","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001209191-13-009554","line_url":"/filing/0001209191-13-009554#line-2","is_derivative":false,"issuer_cik":"0001157377","issuer_name":"ADVISORY BOARD CO","issuer_ticker":"ABCO","issuer_name_source":null,"issuer_url":"/issuer/0001157377","owner_cik":"0001353721","owner_name":"Kirshbaum Michael T","owner_display_name":"Kirshbaum Michael T","owner_url":"/insider/0001353721","role":"Officer (Chief Financial Officer)","role_mark":"O","role_mark_label":"Officer (Chief Financial Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Financial Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":3000.0,"shares_display":"3,000","price_per_share":50.09,"price_display":"50.09","price_state":"stated","total_value":150270.0,"total_display":"150,270.00","total_whole":"150,270","shares_owned_after":14758.0,"shares_owned_after_display":"14,758","ownership_form":"D","is_10b5_1":null,"transaction_date":"2013-02-15","filed_date":"2013-02-19","scope":"insider"},{"id":4750155,"accession":"0001209191-13-003399","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001209191-13-003399","line_url":"/filing/0001209191-13-003399#line-2","is_derivative":false,"issuer_cik":"0001157377","issuer_name":"ADVISORY BOARD CO","issuer_ticker":"ABCO","issuer_name_source":null,"issuer_url":"/issuer/0001157377","owner_cik":"0001353721","owner_name":"Kirshbaum Michael T","owner_display_name":"Kirshbaum Michael T","owner_url":"/insider/0001353721","role":"Officer (Chief Financial Officer)","role_mark":"O","role_mark_label":"Officer (Chief Financial Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Financial Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":3000.0,"shares_display":"3,000","price_per_share":52.3,"price_display":"52.30","price_state":"stated","total_value":156900.0,"total_display":"156,900.00","total_whole":"156,900","shares_owned_after":14758.0,"shares_owned_after_display":"14,758","ownership_form":"D","is_10b5_1":null,"transaction_date":"2013-01-15","filed_date":"2013-01-17","scope":"insider"},{"id":2242945,"accession":"0001209191-12-058619","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001209191-12-058619","line_url":"/filing/0001209191-12-058619#line-2","is_derivative":false,"issuer_cik":"0001157377","issuer_name":"ADVISORY BOARD CO","issuer_ticker":"ABCO","issuer_name_source":null,"issuer_url":"/issuer/0001157377","owner_cik":"0001353721","owner_name":"Kirshbaum Michael T","owner_display_name":"Kirshbaum Michael T","owner_url":"/insider/0001353721","role":"Officer (Chief Financial Officer)","role_mark":"O","role_mark_label":"Officer (Chief Financial Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Financial Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":3000.0,"shares_display":"3,000","price_per_share":48.63,"price_display":"48.63","price_state":"stated","total_value":145890.0,"total_display":"145,890.00","total_whole":"145,890","shares_owned_after":14968.0,"shares_owned_after_display":"14,968","ownership_form":"D","is_10b5_1":null,"transaction_date":"2012-12-17","filed_date":"2012-12-19","scope":"insider"},{"id":3450229,"accession":"0001209191-12-053819","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001209191-12-053819","line_url":"/filing/0001209191-12-053819#line-2","is_derivative":false,"issuer_cik":"0001157377","issuer_name":"ADVISORY BOARD CO","issuer_ticker":"ABCO","issuer_name_source":null,"issuer_url":"/issuer/0001157377","owner_cik":"0001353721","owner_name":"Kirshbaum Michael T","owner_display_name":"Kirshbaum Michael T","owner_url":"/insider/0001353721","role":"Officer (Chief Financial Officer)","role_mark":"O","role_mark_label":"Officer (Chief Financial Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Financial Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":3000.0,"shares_display":"3,000","price_per_share":44.87,"price_display":"44.87","price_state":"stated","total_value":134610.0,"total_display":"134,610.00","total_whole":"134,610","shares_owned_after":14968.0,"shares_owned_after_display":"14,968","ownership_form":"D","is_10b5_1":null,"transaction_date":"2012-11-15","filed_date":"2012-11-19","scope":"insider"},{"id":3087603,"accession":"0001209191-12-049829","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001209191-12-049829","line_url":"/filing/0001209191-12-049829#line-2","is_derivative":false,"issuer_cik":"0001157377","issuer_name":"ADVISORY BOARD CO","issuer_ticker":"ABCO","issuer_name_source":null,"issuer_url":"/issuer/0001157377","owner_cik":"0001353721","owner_name":"Kirshbaum Michael T","owner_display_name":"Kirshbaum Michael T","owner_url":"/insider/0001353721","role":"Officer (Chief Financial Officer)","role_mark":"O","role_mark_label":"Officer (Chief Financial Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Financial Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":3000.0,"shares_display":"3,000","price_per_share":47.93,"price_display":"47.93","price_state":"stated","total_value":143790.0,"total_display":"143,790.00","total_whole":"143,790","shares_owned_after":14968.0,"shares_owned_after_display":"14,968","ownership_form":"D","is_10b5_1":null,"transaction_date":"2012-10-15","filed_date":"2012-10-17","scope":"insider"},{"id":2709685,"accession":"0001209191-12-046152","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001209191-12-046152","line_url":"/filing/0001209191-12-046152#line-2","is_derivative":false,"issuer_cik":"0001157377","issuer_name":"ADVISORY BOARD CO","issuer_ticker":"ABCO","issuer_name_source":null,"issuer_url":"/issuer/0001157377","owner_cik":"0001353721","owner_name":"Kirshbaum Michael T","owner_display_name":"Kirshbaum Michael T","owner_url":"/insider/0001353721","role":"Officer (Chief Financial Officer)","role_mark":"O","role_mark_label":"Officer (Chief Financial Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Financial Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":3000.0,"shares_display":"3,000","price_per_share":46.17,"price_display":"46.17","price_state":"stated","total_value":138510.0,"total_display":"138,510.00","total_whole":"138,510","shares_owned_after":14968.0,"shares_owned_after_display":"14,968","ownership_form":"D","is_10b5_1":null,"transaction_date":"2012-09-17","filed_date":"2012-09-19","scope":"insider"},{"id":3536248,"accession":"0001209191-12-042380","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001209191-12-042380","line_url":"/filing/0001209191-12-042380#line-2","is_derivative":false,"issuer_cik":"0001157377","issuer_name":"ADVISORY BOARD CO","issuer_ticker":"ABCO","issuer_name_source":null,"issuer_url":"/issuer/0001157377","owner_cik":"0001353721","owner_name":"Kirshbaum Michael T","owner_display_name":"Kirshbaum Michael T","owner_url":"/insider/0001353721","role":"Officer (Chief Financial Officer)","role_mark":"O","role_mark_label":"Officer (Chief Financial Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Financial Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":3000.0,"shares_display":"3,000","price_per_share":41.12,"price_display":"41.12","price_state":"stated","total_value":123360.0,"total_display":"123,360.00","total_whole":"123,360","shares_owned_after":14968.0,"shares_owned_after_display":"14,968","ownership_form":"D","is_10b5_1":null,"transaction_date":"2012-08-15","filed_date":"2012-08-17","scope":"insider"},{"id":3555227,"accession":"0001209191-12-038450","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001209191-12-038450","line_url":"/filing/0001209191-12-038450#line-2","is_derivative":false,"issuer_cik":"0001157377","issuer_name":"ADVISORY BOARD CO","issuer_ticker":"ABCO","issuer_name_source":null,"issuer_url":"/issuer/0001157377","owner_cik":"0001353721","owner_name":"Kirshbaum Michael T","owner_display_name":"Kirshbaum Michael T","owner_url":"/insider/0001353721","role":"Officer (Chief Financial Officer)","role_mark":"O","role_mark_label":"Officer (Chief Financial Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Financial Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":3000.0,"shares_display":"3,000","price_per_share":50.23,"price_display":"50.23","price_state":"stated","total_value":150690.0,"total_display":"150,690.00","total_whole":"150,690","shares_owned_after":14968.0,"shares_owned_after_display":"14,968","ownership_form":"D","is_10b5_1":null,"transaction_date":"2012-07-16","filed_date":"2012-07-18","scope":"insider"},{"id":2161862,"accession":"0001209191-12-035095","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001209191-12-035095","line_url":"/filing/0001209191-12-035095#line-2","is_derivative":false,"issuer_cik":"0001157377","issuer_name":"ADVISORY BOARD CO","issuer_ticker":"ABCO","issuer_name_source":null,"issuer_url":"/issuer/0001157377","owner_cik":"0001353721","owner_name":"Kirshbaum Michael T","owner_display_name":"Kirshbaum Michael T","owner_url":"/insider/0001353721","role":"Officer (Chief Financial Officer)","role_mark":"O","role_mark_label":"Officer (Chief Financial Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Financial Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":3000.0,"shares_display":"3,000","price_per_share":49.87,"price_display":"49.87","price_state":"stated","total_value":149610.0,"total_display":"149,610.00","total_whole":"149,610","shares_owned_after":14968.0,"shares_owned_after_display":"14,968","ownership_form":"D","is_10b5_1":null,"transaction_date":"2012-06-20","filed_date":"2012-06-22","scope":"insider"},{"id":3534851,"accession":"0001209191-12-028959","txn_seq":4,"anchor":"line-4","filing_url":"/filing/0001209191-12-028959","line_url":"/filing/0001209191-12-028959#line-4","is_derivative":false,"issuer_cik":"0001157377","issuer_name":"ADVISORY BOARD CO","issuer_ticker":"ABCO","issuer_name_source":null,"issuer_url":"/issuer/0001157377","owner_cik":"0001353721","owner_name":"Kirshbaum Michael T","owner_display_name":"Kirshbaum Michael T","owner_url":"/insider/0001353721","role":"Officer (Chief Financial Officer)","role_mark":"O","role_mark_label":"Officer (Chief Financial Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Financial Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":1500.0,"shares_display":"1,500","price_per_share":93.79,"price_display":"93.79","price_state":"stated","total_value":140685.0,"total_display":"140,685.00","total_whole":"140,685","shares_owned_after":7484.0,"shares_owned_after_display":"7,484","ownership_form":"D","is_10b5_1":null,"transaction_date":"2012-05-15","filed_date":"2012-05-17","scope":"insider"},{"id":3323922,"accession":"0001209191-12-023540","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001209191-12-023540","line_url":"/filing/0001209191-12-023540#line-2","is_derivative":false,"issuer_cik":"0001157377","issuer_name":"ADVISORY BOARD CO","issuer_ticker":"ABCO","issuer_name_source":null,"issuer_url":"/issuer/0001157377","owner_cik":"0001353721","owner_name":"Kirshbaum Michael T","owner_display_name":"Kirshbaum Michael T","owner_url":"/insider/0001353721","role":"Officer (Chief Financial Officer)","role_mark":"O","role_mark_label":"Officer (Chief Financial Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Financial Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":1500.0,"shares_display":"1,500","price_per_share":85.23,"price_display":"85.23","price_state":"stated","total_value":127845.0,"total_display":"127,845.00","total_whole":"127,845","shares_owned_after":5568.0,"shares_owned_after_display":"5,568","ownership_form":"D","is_10b5_1":null,"transaction_date":"2012-04-16","filed_date":"2012-04-18","scope":"insider"},{"id":3351488,"accession":"0001209191-12-012773","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001209191-12-012773","line_url":"/filing/0001209191-12-012773#line-2","is_derivative":false,"issuer_cik":"0001157377","issuer_name":"ADVISORY BOARD CO","issuer_ticker":"ABCO","issuer_name_source":null,"issuer_url":"/issuer/0001157377","owner_cik":"0001353721","owner_name":"Kirshbaum Michael T","owner_display_name":"Kirshbaum Michael T","owner_url":"/insider/0001353721","role":"Officer (Chief Financial Officer)","role_mark":"O","role_mark_label":"Officer (Chief Financial Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Financial Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":1375.0,"shares_display":"1,375","price_per_share":76.15,"price_display":"76.15","price_state":"stated","total_value":104706.25,"total_display":"104,706.25","total_whole":"104,706","shares_owned_after":4860.0,"shares_owned_after_display":"4,860","ownership_form":"D","is_10b5_1":null,"transaction_date":"2012-02-22","filed_date":"2012-02-24","scope":"insider"},{"id":3350955,"accession":"0001209191-12-008627","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001209191-12-008627","line_url":"/filing/0001209191-12-008627#line-2","is_derivative":false,"issuer_cik":"0001157377","issuer_name":"ADVISORY BOARD CO","issuer_ticker":"ABCO","issuer_name_source":null,"issuer_url":"/issuer/0001157377","owner_cik":"0001353721","owner_name":"Kirshbaum Michael T","owner_display_name":"Kirshbaum Michael T","owner_url":"/insider/0001353721","role":"Officer (Chief Financial Officer)","role_mark":"O","role_mark_label":"Officer (Chief Financial Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Financial Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":1375.0,"shares_display":"1,375","price_per_share":73.16,"price_display":"73.16","price_state":"stated","total_value":100595.0,"total_display":"100,595.00","total_whole":"100,595","shares_owned_after":4860.0,"shares_owned_after_display":"4,860","ownership_form":"D","is_10b5_1":null,"transaction_date":"2012-02-07","filed_date":"2012-02-09","scope":"insider"},{"id":2742731,"accession":"0001209191-12-004846","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001209191-12-004846","line_url":"/filing/0001209191-12-004846#line-2","is_derivative":false,"issuer_cik":"0001157377","issuer_name":"ADVISORY BOARD CO","issuer_ticker":"ABCO","issuer_name_source":null,"issuer_url":"/issuer/0001157377","owner_cik":"0001353721","owner_name":"Kirshbaum Michael T","owner_display_name":"Kirshbaum Michael T","owner_url":"/insider/0001353721","role":"Officer (Chief Financial Officer)","role_mark":"O","role_mark_label":"Officer (Chief Financial Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Financial Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":1375.0,"shares_display":"1,375","price_per_share":78.0,"price_display":"78.00","price_state":"stated","total_value":107250.0,"total_display":"107,250.00","total_whole":"107,250","shares_owned_after":4860.0,"shares_owned_after_display":"4,860","ownership_form":"D","is_10b5_1":null,"transaction_date":"2012-01-20","filed_date":"2012-01-23","scope":"insider"},{"id":3527152,"accession":"0001209191-12-002900","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001209191-12-002900","line_url":"/filing/0001209191-12-002900#line-2","is_derivative":false,"issuer_cik":"0001157377","issuer_name":"ADVISORY BOARD CO","issuer_ticker":"ABCO","issuer_name_source":null,"issuer_url":"/issuer/0001157377","owner_cik":"0001353721","owner_name":"Kirshbaum Michael T","owner_display_name":"Kirshbaum Michael T","owner_url":"/insider/0001353721","role":"Officer (Chief Financial Officer)","role_mark":"O","role_mark_label":"Officer (Chief Financial Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Financial Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":1375.0,"shares_display":"1,375","price_per_share":74.07,"price_display":"74.07","price_state":"stated","total_value":101846.25,"total_display":"101,846.25","total_whole":"101,846","shares_owned_after":4860.0,"shares_owned_after_display":"4,860","ownership_form":"D","is_10b5_1":null,"transaction_date":"2012-01-06","filed_date":"2012-01-10","scope":"insider"},{"id":9161510,"accession":"0001209191-11-063114","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001209191-11-063114","line_url":"/filing/0001209191-11-063114#line-2","is_derivative":false,"issuer_cik":"0001157377","issuer_name":"ADVISORY BOARD CO","issuer_ticker":"ABCO","issuer_name_source":null,"issuer_url":"/issuer/0001157377","owner_cik":"0001353721","owner_name":"Kirshbaum Michael T","owner_display_name":"Kirshbaum Michael T","owner_url":"/insider/0001353721","role":"Officer (Chief Financial Officer)","role_mark":"O","role_mark_label":"Officer (Chief Financial Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Financial Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":1375.0,"shares_display":"1,375","price_per_share":73.84,"price_display":"73.84","price_state":"stated","total_value":101530.0,"total_display":"101,530.00","total_whole":"101,530","shares_owned_after":4860.0,"shares_owned_after_display":"4,860","ownership_form":"D","is_10b5_1":null,"transaction_date":"2011-12-22","filed_date":"2011-12-27","scope":"insider"},{"id":8820419,"accession":"0001209191-11-060233","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001209191-11-060233","line_url":"/filing/0001209191-11-060233#line-2","is_derivative":false,"issuer_cik":"0001157377","issuer_name":"ADVISORY BOARD CO","issuer_ticker":"ABCO","issuer_name_source":null,"issuer_url":"/issuer/0001157377","owner_cik":"0001353721","owner_name":"Kirshbaum Michael T","owner_display_name":"Kirshbaum Michael T","owner_url":"/insider/0001353721","role":"Officer (Chief Financial Officer)","role_mark":"O","role_mark_label":"Officer (Chief Financial Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Financial Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":1375.0,"shares_display":"1,375","price_per_share":73.33,"price_display":"73.33","price_state":"stated","total_value":100828.75,"total_display":"100,828.75","total_whole":"100,829","shares_owned_after":4860.0,"shares_owned_after_display":"4,860","ownership_form":"D","is_10b5_1":null,"transaction_date":"2011-12-07","filed_date":"2011-12-08","scope":"insider"},{"id":9142617,"accession":"0001209191-11-057856","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001209191-11-057856","line_url":"/filing/0001209191-11-057856#line-2","is_derivative":false,"issuer_cik":"0001157377","issuer_name":"ADVISORY BOARD CO","issuer_ticker":"ABCO","issuer_name_source":null,"issuer_url":"/issuer/0001157377","owner_cik":"0001353721","owner_name":"Kirshbaum Michael T","owner_display_name":"Kirshbaum Michael T","owner_url":"/insider/0001353721","role":"Officer (Chief Financial Officer)","role_mark":"O","role_mark_label":"Officer (Chief Financial Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Financial Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":1375.0,"shares_display":"1,375","price_per_share":67.95,"price_display":"67.95","price_state":"stated","total_value":93431.25,"total_display":"93,431.25","total_whole":"93,431","shares_owned_after":4860.0,"shares_owned_after_display":"4,860","ownership_form":"D","is_10b5_1":null,"transaction_date":"2011-11-22","filed_date":"2011-11-23","scope":"insider"},{"id":9144368,"accession":"0001209191-11-055204","txn_seq":3,"anchor":"line-3","filing_url":"/filing/0001209191-11-055204","line_url":"/filing/0001209191-11-055204","is_derivative":false,"issuer_cik":"0001157377","issuer_name":"ADVISORY BOARD CO","issuer_ticker":"ABCO","issuer_name_source":null,"issuer_url":"/issuer/0001157377","owner_cik":"0001353721","owner_name":"Kirshbaum Michael T","owner_display_name":"Kirshbaum Michael T","owner_url":"/insider/0001353721","role":"Officer (Chief Financial Officer)","role_mark":"O","role_mark_label":"Officer (Chief Financial Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Financial Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":1375.0,"shares_display":"1,375","price_per_share":70.97181818181818,"price_display":"70.97","price_state":"stated","total_value":97586.25,"total_display":"97,586.25","total_whole":"97,586","shares_owned_after":5160.0,"shares_owned_after_display":"5,160","ownership_form":"D","is_10b5_1":null,"transaction_date":"2011-11-07","filed_date":"2011-11-09","scope":"insider","n_lines":2},{"id":9055843,"accession":"0001209191-11-045152","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001209191-11-045152","line_url":"/filing/0001209191-11-045152#line-2","is_derivative":false,"issuer_cik":"0001157377","issuer_name":"ADVISORY BOARD CO","issuer_ticker":"ABCO","issuer_name_source":null,"issuer_url":"/issuer/0001157377","owner_cik":"0001353721","owner_name":"Kirshbaum Michael T","owner_display_name":"Kirshbaum Michael T","owner_url":"/insider/0001353721","role":"Officer (Chief Financial Officer)","role_mark":"O","role_mark_label":"Officer (Chief Financial Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Financial Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":875.0,"shares_display":"875","price_per_share":57.89,"price_display":"57.89","price_state":"stated","total_value":50653.75,"total_display":"50,653.75","total_whole":"50,654","shares_owned_after":4945.0,"shares_owned_after_display":"4,945","ownership_form":"D","is_10b5_1":null,"transaction_date":"2011-08-22","filed_date":"2011-08-22","scope":"insider"},{"id":9193182,"accession":"0001209191-11-040465","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001209191-11-040465","line_url":"/filing/0001209191-11-040465#line-2","is_derivative":false,"issuer_cik":"0001157377","issuer_name":"ADVISORY BOARD CO","issuer_ticker":"ABCO","issuer_name_source":null,"issuer_url":"/issuer/0001157377","owner_cik":"0001353721","owner_name":"Kirshbaum Michael T","owner_display_name":"Kirshbaum Michael T","owner_url":"/insider/0001353721","role":"Officer (Chief Financial Officer)","role_mark":"O","role_mark_label":"Officer (Chief Financial Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Financial Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":875.0,"shares_display":"875","price_per_share":55.1,"price_display":"55.10","price_state":"stated","total_value":48212.5,"total_display":"48,212.50","total_whole":"48,213","shares_owned_after":4945.0,"shares_owned_after_display":"4,945","ownership_form":"D","is_10b5_1":null,"transaction_date":"2011-07-20","filed_date":"2011-07-21","scope":"insider"},{"id":9064115,"accession":"0001209191-11-035643","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001209191-11-035643","line_url":"/filing/0001209191-11-035643#line-2","is_derivative":false,"issuer_cik":"0001157377","issuer_name":"ADVISORY BOARD CO","issuer_ticker":"ABCO","issuer_name_source":null,"issuer_url":"/issuer/0001157377","owner_cik":"0001353721","owner_name":"Kirshbaum Michael T","owner_display_name":"Kirshbaum Michael T","owner_url":"/insider/0001353721","role":"Officer (Chief Financial Officer)","role_mark":"O","role_mark_label":"Officer (Chief Financial Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Financial Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":875.0,"shares_display":"875","price_per_share":51.44,"price_display":"51.44","price_state":"stated","total_value":45010.0,"total_display":"45,010.00","total_whole":"45,010","shares_owned_after":4945.0,"shares_owned_after_display":"4,945","ownership_form":"D","is_10b5_1":null,"transaction_date":"2011-06-20","filed_date":"2011-06-21","scope":"insider"},{"id":9074697,"accession":"0001209191-11-030273","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001209191-11-030273","line_url":"/filing/0001209191-11-030273#line-2","is_derivative":false,"issuer_cik":"0001157377","issuer_name":"ADVISORY BOARD CO","issuer_ticker":"ABCO","issuer_name_source":null,"issuer_url":"/issuer/0001157377","owner_cik":"0001353721","owner_name":"Kirshbaum Michael T","owner_display_name":"Kirshbaum Michael T","owner_url":"/insider/0001353721","role":"Officer (Chief Financial Officer)","role_mark":"O","role_mark_label":"Officer (Chief Financial Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Financial Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":875.0,"shares_display":"875","price_per_share":50.89,"price_display":"50.89","price_state":"stated","total_value":44528.75,"total_display":"44,528.75","total_whole":"44,529","shares_owned_after":3977.0,"shares_owned_after_display":"3,977","ownership_form":"D","is_10b5_1":null,"transaction_date":"2011-05-20","filed_date":"2011-05-23","scope":"insider"}],"collapsed":true,"next_cursor":"2011-05-20|9074697","ledger_fault":false,"count":{"value":62,"kind":"exact"},"open_market_only":false,"composition":{"kind":"exact","rows":[{"code":"P","label":"Open-market purchase","n":0,"open_market":true},{"code":"S","label":"Open-market sale","n":62,"open_market":true},{"code":"M","label":"Option exercise","n":0,"open_market":false},{"code":"A","label":"Grant or award","n":0,"open_market":false},{"code":"F","label":"Tax withholding","n":0,"open_market":false},{"code":"D","label":"Disposition to the issuer","n":0,"open_market":false},{"code":"X","label":"In-the-money option exercise","n":0,"open_market":false}],"total":62},"affiliations":[{"type":"issuer","type_label":"ISSUER","cik":"0001157377","name":"ADVISORY BOARD CO","url":"/issuer/0001157377","role":"Officer (Chief Financial Officer)","n_filings":57,"first_seen":"2007-06-01","last_seen":"2016-12-22"}],"order_statement":"Newest transaction date first, id breaking the tie.","canonical_url":"https://ebomi.com/insider/0001353721","retrieved_at":"2026-08-24T09:50:45+00:00","coverage":{"filings":1506293,"transactions":4290787,"issuers":28597,"insiders":152303,"first_filed_date":"2003-06-30","last_filed_date":"2026-08-21","last_ingest":"2026-08-22T05:23:40.159918+00:00","counts_are":{"filings":"estimate","transactions":"estimate","issuers":"estimate","insiders":"estimate"},"source":"SEC EDGAR Form 4 filings, parsed by ebomi","fault":false},"license":{"underlying_records":"US SEC filings are public records of the United States government and are not subject to copyright. The transactional facts in them are not ours to license.","this_presentation":"The parsing, normalisation, curation, and presentation are ebomi's own work.","grant":"undecided","grant_note":"The open licence for ebomi's own layer is an open owner decision (SPEC-20260731T1159Z open question 3: CC BY 4.0 or CC0 with a citation request). Until it is taken, no grant is asserted here.","citation_request":"Balogh, A. Insider trading. Scientific Data 10, 237 (2023)","url":"https://ebomi.com/license"},"fair_use":{"policy":"These JSON endpoints are open and unauthenticated. Please read them at a human pace, identify your client in the User-Agent header, and use the published dataset for bulk work rather than crawling page by page.","bulk_alternative":"doi:10.1038/s41597-023-02147-6"}}