{"entity":{"type":"insider","cik":"0001429894","url":"/insider/0001429894","json_url":"/insider/0001429894.json","name":"Shea Thomas","name_source":"as-filed","also_issuer":false,"cross_url":null},"coverage_statement":{"n_transactions":41,"n_filings":34,"first":"2010-05-19","last":"2013-09-10","span_basis":"filed_date"},"name_variants":[{"name":"Shea Thomas","source":"filing","n_filings":34,"first_seen":"2010-05-19","last_seen":"2013-09-10"}],"transactions":[{"id":5229207,"accession":"0001209191-13-043640","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001209191-13-043640","line_url":"/filing/0001209191-13-043640#line-1","is_derivative":false,"issuer_cik":"0001333170","issuer_name":"NxStage Medical, Inc.","issuer_ticker":"NXTM","issuer_name_source":null,"issuer_url":"/issuer/0001333170","owner_cik":"0001429894","owner_name":"Shea Thomas","owner_display_name":"Shea Thomas","owner_url":"/insider/0001429894","role":"Officer (SVP Manufacturing Operations)","role_mark":"O","role_mark_label":"Officer (SVP Manufacturing Operations)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"SVP Manufacturing Operations","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":1000.0,"shares_display":"1,000","price_per_share":12.3,"price_display":"12.30","price_state":"stated","total_value":12300.0,"total_display":"12,300.00","total_whole":"12,300","shares_owned_after":10899.0,"shares_owned_after_display":"10,899","ownership_form":"D","is_10b5_1":null,"transaction_date":"2013-09-09","filed_date":"2013-09-10","scope":"insider"},{"id":4895461,"accession":"0001209191-13-040691","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001209191-13-040691","line_url":"/filing/0001209191-13-040691#line-1","is_derivative":false,"issuer_cik":"0001333170","issuer_name":"NxStage Medical, Inc.","issuer_ticker":"NXTM","issuer_name_source":null,"issuer_url":"/issuer/0001333170","owner_cik":"0001429894","owner_name":"Shea Thomas","owner_display_name":"Shea Thomas","owner_url":"/insider/0001429894","role":"Officer (SVP Manufacturing Operations)","role_mark":"O","role_mark_label":"Officer (SVP Manufacturing Operations)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"SVP Manufacturing Operations","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":1172.0,"shares_display":"1,172","price_per_share":12.93,"price_display":"12.93","price_state":"stated","total_value":15153.96,"total_display":"15,153.96","total_whole":"15,154","shares_owned_after":11899.0,"shares_owned_after_display":"11,899","ownership_form":"D","is_10b5_1":null,"transaction_date":"2013-08-12","filed_date":"2013-08-14","scope":"insider"},{"id":5306043,"accession":"0001209191-13-036095","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001209191-13-036095","line_url":"/filing/0001209191-13-036095#line-2","is_derivative":false,"issuer_cik":"0001333170","issuer_name":"NxStage Medical, Inc.","issuer_ticker":"NXTM","issuer_name_source":null,"issuer_url":"/issuer/0001333170","owner_cik":"0001429894","owner_name":"Shea Thomas","owner_display_name":"Shea Thomas","owner_url":"/insider/0001429894","role":"Officer (SVP Manufacturing Operations)","role_mark":"O","role_mark_label":"Officer (SVP Manufacturing Operations)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"SVP Manufacturing Operations","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":7000.0,"shares_display":"7,000","price_per_share":14.34,"price_display":"14.34","price_state":"stated","total_value":100380.0,"total_display":"100,380.00","total_whole":"100,380","shares_owned_after":13071.0,"shares_owned_after_display":"13,071","ownership_form":"D","is_10b5_1":null,"transaction_date":"2013-07-08","filed_date":"2013-07-10","scope":"insider"},{"id":5371017,"accession":"0001209191-13-031852","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001209191-13-031852","line_url":"/filing/0001209191-13-031852#line-1","is_derivative":false,"issuer_cik":"0001333170","issuer_name":"NxStage Medical, Inc.","issuer_ticker":"NXTM","issuer_name_source":null,"issuer_url":"/issuer/0001333170","owner_cik":"0001429894","owner_name":"Shea Thomas","owner_display_name":"Shea Thomas","owner_url":"/insider/0001429894","role":"Officer (SVP Manufacturing Operations)","role_mark":"O","role_mark_label":"Officer (SVP Manufacturing Operations)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"SVP Manufacturing Operations","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":5000.0,"shares_display":"5,000","price_per_share":13.7258,"price_display":"13.73","price_state":"stated","total_value":68629.0,"total_display":"68,629.00","total_whole":"68,629","shares_owned_after":15071.0,"shares_owned_after_display":"15,071","ownership_form":"D","is_10b5_1":null,"transaction_date":"2013-06-10","filed_date":"2013-06-12","scope":"insider"},{"id":4601837,"accession":"0001209191-13-031425","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001209191-13-031425","line_url":"/filing/0001209191-13-031425#line-2","is_derivative":false,"issuer_cik":"0001333170","issuer_name":"NxStage Medical, Inc.","issuer_ticker":"NXTM","issuer_name_source":null,"issuer_url":"/issuer/0001333170","owner_cik":"0001429894","owner_name":"Shea Thomas","owner_display_name":"Shea Thomas","owner_url":"/insider/0001429894","role":"Officer (SVP Manufacturing Operations)","role_mark":"O","role_mark_label":"Officer (SVP Manufacturing Operations)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"SVP Manufacturing Operations","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":5000.0,"shares_display":"5,000","price_per_share":13.7258,"price_display":"13.73","price_state":"stated","total_value":68629.0,"total_display":"68,629.00","total_whole":"68,629","shares_owned_after":20071.0,"shares_owned_after_display":"20,071","ownership_form":"D","is_10b5_1":null,"transaction_date":"2013-06-10","filed_date":"2013-06-10","scope":"insider"},{"id":5127104,"accession":"0001209191-13-026174","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001209191-13-026174","line_url":"/filing/0001209191-13-026174#line-2","is_derivative":false,"issuer_cik":"0001333170","issuer_name":"NxStage Medical, Inc.","issuer_ticker":"NXTM","issuer_name_source":null,"issuer_url":"/issuer/0001333170","owner_cik":"0001429894","owner_name":"Shea Thomas","owner_display_name":"Shea Thomas","owner_url":"/insider/0001429894","role":"Officer (SVP Manufacturing Operations)","role_mark":"O","role_mark_label":"Officer (SVP Manufacturing Operations)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"SVP Manufacturing Operations","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":15724.0,"shares_display":"15,724","price_per_share":12.6654,"price_display":"12.67","price_state":"stated","total_value":199150.7496,"total_display":"199,150.75","total_whole":"199,151","shares_owned_after":20071.0,"shares_owned_after_display":"20,071","ownership_form":"D","is_10b5_1":null,"transaction_date":"2013-05-13","filed_date":"2013-05-14","scope":"insider"},{"id":3398554,"accession":"0001209191-12-040936","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001209191-12-040936","line_url":"/filing/0001209191-12-040936#line-2","is_derivative":false,"issuer_cik":"0001333170","issuer_name":"NxStage Medical, Inc.","issuer_ticker":"NXTM","issuer_name_source":null,"issuer_url":"/issuer/0001333170","owner_cik":"0001429894","owner_name":"Shea Thomas","owner_display_name":"Shea Thomas","owner_url":"/insider/0001429894","role":"Officer (SVP Manufacturing Operations)","role_mark":"O","role_mark_label":"Officer (SVP Manufacturing Operations)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"SVP Manufacturing Operations","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":5000.0,"shares_display":"5,000","price_per_share":15.0009,"price_display":"15.00","price_state":"stated","total_value":75004.5,"total_display":"75,004.50","total_whole":"75,005","shares_owned_after":15692.0,"shares_owned_after_display":"15,692","ownership_form":"D","is_10b5_1":null,"transaction_date":"2012-08-06","filed_date":"2012-08-08","scope":"insider"},{"id":3382471,"accession":"0001209191-12-037783","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001209191-12-037783","line_url":"/filing/0001209191-12-037783#line-2","is_derivative":false,"issuer_cik":"0001333170","issuer_name":"NxStage Medical, Inc.","issuer_ticker":"NXTM","issuer_name_source":null,"issuer_url":"/issuer/0001333170","owner_cik":"0001429894","owner_name":"Shea Thomas","owner_display_name":"Shea Thomas","owner_url":"/insider/0001429894","role":"Officer (SVP Manufacturing Operations)","role_mark":"O","role_mark_label":"Officer (SVP Manufacturing Operations)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"SVP Manufacturing Operations","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":10000.0,"shares_display":"10,000","price_per_share":16.1533,"price_display":"16.15","price_state":"stated","total_value":161533.0,"total_display":"161,533.00","total_whole":"161,533","shares_owned_after":16692.0,"shares_owned_after_display":"16,692","ownership_form":"D","is_10b5_1":null,"transaction_date":"2012-07-09","filed_date":"2012-07-10","scope":"insider"},{"id":2820327,"accession":"0001209191-12-033043","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001209191-12-033043","line_url":"/filing/0001209191-12-033043#line-2","is_derivative":false,"issuer_cik":"0001333170","issuer_name":"NxStage Medical, Inc.","issuer_ticker":"NXTM","issuer_name_source":null,"issuer_url":"/issuer/0001333170","owner_cik":"0001429894","owner_name":"Shea Thomas","owner_display_name":"Shea Thomas","owner_url":"/insider/0001429894","role":"Officer (SVP Manufacturing Operations)","role_mark":"O","role_mark_label":"Officer (SVP Manufacturing Operations)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"SVP Manufacturing Operations","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":11000.0,"shares_display":"11,000","price_per_share":15.9893,"price_display":"15.99","price_state":"stated","total_value":175882.3,"total_display":"175,882.30","total_whole":"175,882","shares_owned_after":22692.0,"shares_owned_after_display":"22,692","ownership_form":"D","is_10b5_1":null,"transaction_date":"2012-06-07","filed_date":"2012-06-08","scope":"insider"},{"id":2464182,"accession":"0001209191-12-027020","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001209191-12-027020","line_url":"/filing/0001209191-12-027020#line-2","is_derivative":false,"issuer_cik":"0001333170","issuer_name":"NxStage Medical, Inc.","issuer_ticker":"NXTM","issuer_name_source":null,"issuer_url":"/issuer/0001333170","owner_cik":"0001429894","owner_name":"Shea Thomas","owner_display_name":"Shea Thomas","owner_url":"/insider/0001429894","role":"Officer (SVP Manufacturing Operations)","role_mark":"O","role_mark_label":"Officer (SVP Manufacturing Operations)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"SVP Manufacturing Operations","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":5000.0,"shares_display":"5,000","price_per_share":16.7562,"price_display":"16.76","price_state":"stated","total_value":83781.0,"total_display":"83,781.00","total_whole":"83,781","shares_owned_after":32692.0,"shares_owned_after_display":"32,692","ownership_form":"D","is_10b5_1":null,"transaction_date":"2012-05-07","filed_date":"2012-05-09","scope":"insider"},{"id":3356678,"accession":"0001209191-12-021460","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001209191-12-021460","line_url":"/filing/0001209191-12-021460#line-2","is_derivative":false,"issuer_cik":"0001333170","issuer_name":"NxStage Medical, Inc.","issuer_ticker":"NXTM","issuer_name_source":null,"issuer_url":"/issuer/0001333170","owner_cik":"0001429894","owner_name":"Shea Thomas","owner_display_name":"Shea Thomas","owner_url":"/insider/0001429894","role":"Officer (SVP Manufacturing Operations)","role_mark":"O","role_mark_label":"Officer (SVP Manufacturing Operations)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"SVP Manufacturing Operations","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":5000.0,"shares_display":"5,000","price_per_share":19.19,"price_display":"19.19","price_state":"stated","total_value":95950.0,"total_display":"95,950.00","total_whole":"95,950","shares_owned_after":33692.0,"shares_owned_after_display":"33,692","ownership_form":"D","is_10b5_1":null,"transaction_date":"2012-04-02","filed_date":"2012-04-03","scope":"insider"},{"id":2904598,"accession":"0001209191-12-016178","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001209191-12-016178","line_url":"/filing/0001209191-12-016178#line-2","is_derivative":false,"issuer_cik":"0001333170","issuer_name":"NxStage Medical, Inc.","issuer_ticker":"NXTM","issuer_name_source":null,"issuer_url":"/issuer/0001333170","owner_cik":"0001429894","owner_name":"Shea Thomas","owner_display_name":"Shea Thomas","owner_url":"/insider/0001429894","role":"Officer (SVP Manufacturing Operations)","role_mark":"O","role_mark_label":"Officer (SVP Manufacturing Operations)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"SVP Manufacturing Operations","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":5000.0,"shares_display":"5,000","price_per_share":18.9049,"price_display":"18.90","price_state":"stated","total_value":94524.5,"total_display":"94,524.50","total_whole":"94,525","shares_owned_after":30786.0,"shares_owned_after_display":"30,786","ownership_form":"D","is_10b5_1":null,"transaction_date":"2012-03-05","filed_date":"2012-03-06","scope":"insider"},{"id":2451414,"accession":"0001209191-12-008549","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001209191-12-008549","line_url":"/filing/0001209191-12-008549#line-2","is_derivative":false,"issuer_cik":"0001333170","issuer_name":"NxStage Medical, Inc.","issuer_ticker":"NXTM","issuer_name_source":null,"issuer_url":"/issuer/0001333170","owner_cik":"0001429894","owner_name":"Shea Thomas","owner_display_name":"Shea Thomas","owner_url":"/insider/0001429894","role":"Officer (SVP Manufacturing Operations)","role_mark":"O","role_mark_label":"Officer (SVP Manufacturing Operations)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"SVP Manufacturing Operations","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":5000.0,"shares_display":"5,000","price_per_share":19.3665,"price_display":"19.37","price_state":"stated","total_value":96832.5,"total_display":"96,832.50","total_whole":"96,833","shares_owned_after":25786.0,"shares_owned_after_display":"25,786","ownership_form":"D","is_10b5_1":null,"transaction_date":"2012-02-06","filed_date":"2012-02-08","scope":"insider"},{"id":2569602,"accession":"0001209191-12-002795","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001209191-12-002795","line_url":"/filing/0001209191-12-002795#line-2","is_derivative":false,"issuer_cik":"0001333170","issuer_name":"NxStage Medical, Inc.","issuer_ticker":"NXTM","issuer_name_source":null,"issuer_url":"/issuer/0001333170","owner_cik":"0001429894","owner_name":"Shea Thomas","owner_display_name":"Shea Thomas","owner_url":"/insider/0001429894","role":"Officer (SVP Manufacturing Operations)","role_mark":"O","role_mark_label":"Officer (SVP Manufacturing Operations)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"SVP Manufacturing Operations","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":5000.0,"shares_display":"5,000","price_per_share":18.1708,"price_display":"18.17","price_state":"stated","total_value":90854.0,"total_display":"90,854.00","total_whole":"90,854","shares_owned_after":26786.0,"shares_owned_after_display":"26,786","ownership_form":"D","is_10b5_1":null,"transaction_date":"2012-01-06","filed_date":"2012-01-09","scope":"insider"},{"id":8979106,"accession":"0001209191-11-060044","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001209191-11-060044","line_url":"/filing/0001209191-11-060044#line-2","is_derivative":false,"issuer_cik":"0001333170","issuer_name":"NxStage Medical, Inc.","issuer_ticker":"NXTM","issuer_name_source":null,"issuer_url":"/issuer/0001333170","owner_cik":"0001429894","owner_name":"Shea Thomas","owner_display_name":"Shea Thomas","owner_url":"/insider/0001429894","role":"Officer (SVP Manufacturing Operations)","role_mark":"O","role_mark_label":"Officer (SVP Manufacturing Operations)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"SVP Manufacturing Operations","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":5000.0,"shares_display":"5,000","price_per_share":19.5893,"price_display":"19.59","price_state":"stated","total_value":97946.5,"total_display":"97,946.50","total_whole":"97,947","shares_owned_after":29608.0,"shares_owned_after_display":"29,608","ownership_form":"D","is_10b5_1":null,"transaction_date":"2011-12-05","filed_date":"2011-12-07","scope":"insider"},{"id":8969427,"accession":"0001209191-11-056949","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001209191-11-056949","line_url":"/filing/0001209191-11-056949#line-1","is_derivative":false,"issuer_cik":"0001333170","issuer_name":"NxStage Medical, Inc.","issuer_ticker":"NXTM","issuer_name_source":null,"issuer_url":"/issuer/0001333170","owner_cik":"0001429894","owner_name":"Shea Thomas","owner_display_name":"Shea Thomas","owner_url":"/insider/0001429894","role":"Officer (SVP Manufacturing Operations)","role_mark":"O","role_mark_label":"Officer (SVP Manufacturing Operations)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"SVP Manufacturing Operations","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":1000.0,"shares_display":"1,000","price_per_share":19.73,"price_display":"19.73","price_state":"stated","total_value":19730.0,"total_display":"19,730.00","total_whole":"19,730","shares_owned_after":30608.0,"shares_owned_after_display":"30,608","ownership_form":"D","is_10b5_1":null,"transaction_date":"2011-11-17","filed_date":"2011-11-17","scope":"insider"},{"id":9133847,"accession":"0001209191-11-054839","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001209191-11-054839","line_url":"/filing/0001209191-11-054839#line-2","is_derivative":false,"issuer_cik":"0001333170","issuer_name":"NxStage Medical, Inc.","issuer_ticker":"NXTM","issuer_name_source":null,"issuer_url":"/issuer/0001333170","owner_cik":"0001429894","owner_name":"Shea Thomas","owner_display_name":"Shea Thomas","owner_url":"/insider/0001429894","role":"Officer (SVP Manufacturing Operations)","role_mark":"O","role_mark_label":"Officer (SVP Manufacturing Operations)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"SVP Manufacturing Operations","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":10000.0,"shares_display":"10,000","price_per_share":19.3042,"price_display":"19.30","price_state":"stated","total_value":193042.0,"total_display":"193,042.00","total_whole":"193,042","shares_owned_after":31608.0,"shares_owned_after_display":"31,608","ownership_form":"D","is_10b5_1":null,"transaction_date":"2011-11-07","filed_date":"2011-11-08","scope":"insider"},{"id":8960995,"accession":"0001209191-11-052210","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001209191-11-052210","line_url":"/filing/0001209191-11-052210#line-2","is_derivative":false,"issuer_cik":"0001333170","issuer_name":"NxStage Medical, Inc.","issuer_ticker":"NXTM","issuer_name_source":null,"issuer_url":"/issuer/0001333170","owner_cik":"0001429894","owner_name":"Shea Thomas","owner_display_name":"Shea Thomas","owner_url":"/insider/0001429894","role":"Officer (SVP Manufacturing Operations)","role_mark":"O","role_mark_label":"Officer (SVP Manufacturing Operations)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"SVP Manufacturing Operations","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":15000.0,"shares_display":"15,000","price_per_share":21.5845,"price_display":"21.58","price_state":"stated","total_value":323767.5,"total_display":"323,767.50","total_whole":"323,768","shares_owned_after":31608.0,"shares_owned_after_display":"31,608","ownership_form":"D","is_10b5_1":null,"transaction_date":"2011-10-17","filed_date":"2011-10-19","scope":"insider"},{"id":8960889,"accession":"0001209191-11-048018","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001209191-11-048018","line_url":"/filing/0001209191-11-048018#line-2","is_derivative":false,"issuer_cik":"0001333170","issuer_name":"NxStage Medical, Inc.","issuer_ticker":"NXTM","issuer_name_source":null,"issuer_url":"/issuer/0001333170","owner_cik":"0001429894","owner_name":"Shea Thomas","owner_display_name":"Shea Thomas","owner_url":"/insider/0001429894","role":"Officer (SVP Manufacturing Operations)","role_mark":"O","role_mark_label":"Officer (SVP Manufacturing Operations)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"SVP Manufacturing Operations","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":4000.0,"shares_display":"4,000","price_per_share":18.42,"price_display":"18.42","price_state":"stated","total_value":73680.0,"total_display":"73,680.00","total_whole":"73,680","shares_owned_after":36608.0,"shares_owned_after_display":"36,608","ownership_form":"D","is_10b5_1":null,"transaction_date":"2011-09-14","filed_date":"2011-09-15","scope":"insider"},{"id":9193333,"accession":"0001209191-11-044657","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001209191-11-044657","line_url":"/filing/0001209191-11-044657#line-2","is_derivative":false,"issuer_cik":"0001333170","issuer_name":"NxStage Medical, Inc.","issuer_ticker":"NXTM","issuer_name_source":null,"issuer_url":"/issuer/0001333170","owner_cik":"0001429894","owner_name":"Shea Thomas","owner_display_name":"Shea Thomas","owner_url":"/insider/0001429894","role":"Officer (SVP Manufacturing Operations)","role_mark":"O","role_mark_label":"Officer (SVP Manufacturing Operations)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"SVP Manufacturing Operations","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":4000.0,"shares_display":"4,000","price_per_share":18.5035,"price_display":"18.50","price_state":"stated","total_value":74014.0,"total_display":"74,014.00","total_whole":"74,014","shares_owned_after":37608.0,"shares_owned_after_display":"37,608","ownership_form":"D","is_10b5_1":null,"transaction_date":"2011-08-15","filed_date":"2011-08-17","scope":"insider"},{"id":9114569,"accession":"0001209191-11-039577","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001209191-11-039577","line_url":"/filing/0001209191-11-039577#line-2","is_derivative":false,"issuer_cik":"0001333170","issuer_name":"NxStage Medical, Inc.","issuer_ticker":"NXTM","issuer_name_source":null,"issuer_url":"/issuer/0001333170","owner_cik":"0001429894","owner_name":"Shea Thomas","owner_display_name":"Shea Thomas","owner_url":"/insider/0001429894","role":"Officer (SVP Manufacturing Operations)","role_mark":"O","role_mark_label":"Officer (SVP Manufacturing Operations)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"SVP Manufacturing Operations","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":11000.0,"shares_display":"11,000","price_per_share":19.8825,"price_display":"19.88","price_state":"stated","total_value":218707.5,"total_display":"218,707.50","total_whole":"218,708","shares_owned_after":38608.0,"shares_owned_after_display":"38,608","ownership_form":"D","is_10b5_1":null,"transaction_date":"2011-07-14","filed_date":"2011-07-14","scope":"insider"},{"id":9064082,"accession":"0001209191-11-034797","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001209191-11-034797","line_url":"/filing/0001209191-11-034797#line-2","is_derivative":false,"issuer_cik":"0001333170","issuer_name":"NxStage Medical, Inc.","issuer_ticker":"NXTM","issuer_name_source":null,"issuer_url":"/issuer/0001333170","owner_cik":"0001429894","owner_name":"Shea Thomas","owner_display_name":"Shea Thomas","owner_url":"/insider/0001429894","role":"Officer (SVP Manufacturing Operations)","role_mark":"O","role_mark_label":"Officer (SVP Manufacturing Operations)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"SVP Manufacturing Operations","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":4000.0,"shares_display":"4,000","price_per_share":19.3,"price_display":"19.30","price_state":"stated","total_value":77200.0,"total_display":"77,200.00","total_whole":"77,200","shares_owned_after":39608.0,"shares_owned_after_display":"39,608","ownership_form":"D","is_10b5_1":null,"transaction_date":"2011-06-14","filed_date":"2011-06-15","scope":"insider"},{"id":9143510,"accession":"0001209191-11-028976","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001209191-11-028976","line_url":"/filing/0001209191-11-028976#line-2","is_derivative":false,"issuer_cik":"0001333170","issuer_name":"NxStage Medical, Inc.","issuer_ticker":"NXTM","issuer_name_source":null,"issuer_url":"/issuer/0001333170","owner_cik":"0001429894","owner_name":"Shea Thomas","owner_display_name":"Shea Thomas","owner_url":"/insider/0001429894","role":"Officer (SVP Manufacturing Operations)","role_mark":"O","role_mark_label":"Officer (SVP Manufacturing Operations)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"SVP Manufacturing Operations","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":4000.0,"shares_display":"4,000","price_per_share":19.66,"price_display":"19.66","price_state":"stated","total_value":78640.0,"total_display":"78,640.00","total_whole":"78,640","shares_owned_after":40608.0,"shares_owned_after_display":"40,608","ownership_form":"D","is_10b5_1":null,"transaction_date":"2011-05-16","filed_date":"2011-05-17","scope":"insider"},{"id":9007547,"accession":"0001209191-11-023018","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001209191-11-023018","line_url":"/filing/0001209191-11-023018#line-2","is_derivative":false,"issuer_cik":"0001333170","issuer_name":"NxStage Medical, Inc.","issuer_ticker":"NXTM","issuer_name_source":null,"issuer_url":"/issuer/0001333170","owner_cik":"0001429894","owner_name":"Shea Thomas","owner_display_name":"Shea Thomas","owner_url":"/insider/0001429894","role":"Officer (SVP Manufacturing Operations)","role_mark":"O","role_mark_label":"Officer (SVP Manufacturing Operations)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"SVP Manufacturing Operations","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":4000.0,"shares_display":"4,000","price_per_share":22.16,"price_display":"22.16","price_state":"stated","total_value":88640.0,"total_display":"88,640.00","total_whole":"88,640","shares_owned_after":41608.0,"shares_owned_after_display":"41,608","ownership_form":"D","is_10b5_1":null,"transaction_date":"2011-04-14","filed_date":"2011-04-15","scope":"insider"},{"id":9046204,"accession":"0001209191-11-018430","txn_seq":3,"anchor":"line-3","filing_url":"/filing/0001209191-11-018430","line_url":"/filing/0001209191-11-018430","is_derivative":false,"issuer_cik":"0001333170","issuer_name":"NxStage Medical, Inc.","issuer_ticker":"NXTM","issuer_name_source":null,"issuer_url":"/issuer/0001333170","owner_cik":"0001429894","owner_name":"Shea Thomas","owner_display_name":"Shea Thomas","owner_url":"/insider/0001429894","role":"Officer (SVP Manufacturing Operations)","role_mark":"O","role_mark_label":"Officer (SVP Manufacturing Operations)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"SVP Manufacturing Operations","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":8500.0,"shares_display":"8,500","price_per_share":19.99043411764706,"price_display":"19.99","price_state":"stated","total_value":169918.69,"total_display":"169,918.69","total_whole":"169,919","shares_owned_after":44808.0,"shares_owned_after_display":"44,808","ownership_form":"D","is_10b5_1":null,"transaction_date":"2011-03-14","filed_date":"2011-03-16","scope":"insider","n_lines":2},{"id":9180505,"accession":"0001209191-11-010190","txn_seq":3,"anchor":"line-3","filing_url":"/filing/0001209191-11-010190","line_url":"/filing/0001209191-11-010190#line-3","is_derivative":false,"issuer_cik":"0001333170","issuer_name":"NxStage Medical, Inc.","issuer_ticker":"NXTM","issuer_name_source":null,"issuer_url":"/issuer/0001333170","owner_cik":"0001429894","owner_name":"Shea Thomas","owner_display_name":"Shea Thomas","owner_url":"/insider/0001429894","role":"Officer (SVP Manufacturing Operations)","role_mark":"O","role_mark_label":"Officer (SVP Manufacturing Operations)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"SVP Manufacturing Operations","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":12500.0,"shares_display":"12,500","price_per_share":20.851,"price_display":"20.85","price_state":"stated","total_value":260637.5,"total_display":"260,637.50","total_whole":"260,638","shares_owned_after":33788.0,"shares_owned_after_display":"33,788","ownership_form":"D","is_10b5_1":null,"transaction_date":"2011-02-14","filed_date":"2011-02-16","scope":"insider"},{"id":7282275,"accession":"0001209191-10-061421","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001209191-10-061421","line_url":"/filing/0001209191-10-061421#line-2","is_derivative":false,"issuer_cik":"0001333170","issuer_name":"NxStage Medical, Inc.","issuer_ticker":"NXTM","issuer_name_source":null,"issuer_url":"/issuer/0001333170","owner_cik":"0001429894","owner_name":"Shea Thomas","owner_display_name":"Shea Thomas","owner_url":"/insider/0001429894","role":"Officer (SVP Manufacturing Operations)","role_mark":"O","role_mark_label":"Officer (SVP Manufacturing Operations)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"SVP Manufacturing Operations","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":1000.0,"shares_display":"1,000","price_per_share":23.509,"price_display":"23.51","price_state":"stated","total_value":23509.0,"total_display":"23,509.00","total_whole":"23,509","shares_owned_after":44310.0,"shares_owned_after_display":"44,310","ownership_form":"D","is_10b5_1":null,"transaction_date":"2010-12-17","filed_date":"2010-12-17","scope":"insider"},{"id":7442112,"accession":"0001209191-10-055919","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001209191-10-055919","line_url":"/filing/0001209191-10-055919#line-2","is_derivative":false,"issuer_cik":"0001333170","issuer_name":"NxStage Medical, Inc.","issuer_ticker":"NXTM","issuer_name_source":null,"issuer_url":"/issuer/0001333170","owner_cik":"0001429894","owner_name":"Shea Thomas","owner_display_name":"Shea Thomas","owner_url":"/insider/0001429894","role":"Officer (SVP Manufacturing Operations)","role_mark":"O","role_mark_label":"Officer (SVP Manufacturing Operations)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"SVP Manufacturing Operations","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":2000.0,"shares_display":"2,000","price_per_share":21.57,"price_display":"21.57","price_state":"stated","total_value":43140.0,"total_display":"43,140.00","total_whole":"43,140","shares_owned_after":44310.0,"shares_owned_after_display":"44,310","ownership_form":"D","is_10b5_1":null,"transaction_date":"2010-11-17","filed_date":"2010-11-18","scope":"insider"},{"id":7393462,"accession":"0001209191-10-051015","txn_seq":3,"anchor":"line-3","filing_url":"/filing/0001209191-10-051015","line_url":"/filing/0001209191-10-051015","is_derivative":false,"issuer_cik":"0001333170","issuer_name":"NxStage Medical, Inc.","issuer_ticker":"NXTM","issuer_name_source":null,"issuer_url":"/issuer/0001333170","owner_cik":"0001429894","owner_name":"Shea Thomas","owner_display_name":"Shea Thomas","owner_url":"/insider/0001429894","role":"Officer (SVP Manufacturing Operations)","role_mark":"O","role_mark_label":"Officer (SVP Manufacturing Operations)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"SVP Manufacturing Operations","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":2000.0,"shares_display":"2,000","price_per_share":21.35,"price_display":"21.35","price_state":"stated","total_value":42700.0,"total_display":"42,700.00","total_whole":"42,700","shares_owned_after":46310.0,"shares_owned_after_display":"46,310","ownership_form":"D","is_10b5_1":null,"transaction_date":"2010-10-18","filed_date":"2010-10-19","scope":"insider","n_lines":2},{"id":7488286,"accession":"0001209191-10-047020","txn_seq":3,"anchor":"line-3","filing_url":"/filing/0001209191-10-047020","line_url":"/filing/0001209191-10-047020","is_derivative":false,"issuer_cik":"0001333170","issuer_name":"NxStage Medical, Inc.","issuer_ticker":"NXTM","issuer_name_source":null,"issuer_url":"/issuer/0001333170","owner_cik":"0001429894","owner_name":"Shea Thomas","owner_display_name":"Shea Thomas","owner_url":"/insider/0001429894","role":"Officer (SVP Manufacturing Operations)","role_mark":"O","role_mark_label":"Officer (SVP Manufacturing Operations)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"SVP Manufacturing Operations","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":2000.0,"shares_display":"2,000","price_per_share":16.36,"price_display":"16.36","price_state":"stated","total_value":32720.0,"total_display":"32,720.00","total_whole":"32,720","shares_owned_after":47310.0,"shares_owned_after_display":"47,310","ownership_form":"D","is_10b5_1":null,"transaction_date":"2010-09-17","filed_date":"2010-09-20","scope":"insider","n_lines":2},{"id":7370361,"accession":"0001209191-10-043206","txn_seq":3,"anchor":"line-3","filing_url":"/filing/0001209191-10-043206","line_url":"/filing/0001209191-10-043206","is_derivative":false,"issuer_cik":"0001333170","issuer_name":"NxStage Medical, Inc.","issuer_ticker":"NXTM","issuer_name_source":null,"issuer_url":"/issuer/0001333170","owner_cik":"0001429894","owner_name":"Shea Thomas","owner_display_name":"Shea Thomas","owner_url":"/insider/0001429894","role":"Officer (SVP Manufacturing Operations)","role_mark":"O","role_mark_label":"Officer (SVP Manufacturing Operations)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"SVP Manufacturing Operations","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":2000.0,"shares_display":"2,000","price_per_share":17.2,"price_display":"17.20","price_state":"stated","total_value":34400.0,"total_display":"34,400.00","total_whole":"34,400","shares_owned_after":48310.0,"shares_owned_after_display":"48,310","ownership_form":"D","is_10b5_1":null,"transaction_date":"2010-08-17","filed_date":"2010-08-18","scope":"insider","n_lines":2},{"id":7221785,"accession":"0001209191-10-038984","txn_seq":3,"anchor":"line-3","filing_url":"/filing/0001209191-10-038984","line_url":"/filing/0001209191-10-038984","is_derivative":false,"issuer_cik":"0001333170","issuer_name":"NxStage Medical, Inc.","issuer_ticker":"NXTM","issuer_name_source":null,"issuer_url":"/issuer/0001333170","owner_cik":"0001429894","owner_name":"Shea Thomas","owner_display_name":"Shea Thomas","owner_url":"/insider/0001429894","role":"Officer (SVP Manufacturing Operations)","role_mark":"O","role_mark_label":"Officer (SVP Manufacturing Operations)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"SVP Manufacturing Operations","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":2000.0,"shares_display":"2,000","price_per_share":13.99,"price_display":"13.99","price_state":"stated","total_value":27980.0,"total_display":"27,980.00","total_whole":"27,980","shares_owned_after":49310.0,"shares_owned_after_display":"49,310","ownership_form":"D","is_10b5_1":null,"transaction_date":"2010-07-19","filed_date":"2010-07-19","scope":"insider","n_lines":2},{"id":7717378,"accession":"0001209191-10-034815","txn_seq":3,"anchor":"line-3","filing_url":"/filing/0001209191-10-034815","line_url":"/filing/0001209191-10-034815","is_derivative":false,"issuer_cik":"0001333170","issuer_name":"NxStage Medical, Inc.","issuer_ticker":"NXTM","issuer_name_source":null,"issuer_url":"/issuer/0001333170","owner_cik":"0001429894","owner_name":"Shea Thomas","owner_display_name":"Shea Thomas","owner_url":"/insider/0001429894","role":"Officer (SVP Manufacturing Operations)","role_mark":"O","role_mark_label":"Officer (SVP Manufacturing Operations)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"SVP Manufacturing Operations","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":2000.0,"shares_display":"2,000","price_per_share":13.88,"price_display":"13.88","price_state":"stated","total_value":27760.0,"total_display":"27,760.00","total_whole":"27,760","shares_owned_after":50310.0,"shares_owned_after_display":"50,310","ownership_form":"D","is_10b5_1":null,"transaction_date":"2010-06-17","filed_date":"2010-06-17","scope":"insider","n_lines":2},{"id":7629806,"accession":"0001209191-10-029106","txn_seq":3,"anchor":"line-3","filing_url":"/filing/0001209191-10-029106","line_url":"/filing/0001209191-10-029106","is_derivative":false,"issuer_cik":"0001333170","issuer_name":"NxStage Medical, Inc.","issuer_ticker":"NXTM","issuer_name_source":null,"issuer_url":"/issuer/0001333170","owner_cik":"0001429894","owner_name":"Shea Thomas","owner_display_name":"Shea Thomas","owner_url":"/insider/0001429894","role":"Officer (SVP Manufacturing Operations)","role_mark":"O","role_mark_label":"Officer (SVP Manufacturing Operations)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"SVP Manufacturing Operations","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":2000.0,"shares_display":"2,000","price_per_share":14.06,"price_display":"14.06","price_state":"stated","total_value":28120.0,"total_display":"28,120.00","total_whole":"28,120","shares_owned_after":51310.0,"shares_owned_after_display":"51,310","ownership_form":"D","is_10b5_1":null,"transaction_date":"2010-05-17","filed_date":"2010-05-19","scope":"insider","n_lines":2}],"collapsed":true,"next_cursor":null,"ledger_fault":false,"count":{"value":41,"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":41,"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":41},"affiliations":[{"type":"issuer","type_label":"ISSUER","cik":"0001333170","name":"NxStage Medical, Inc.","url":"/issuer/0001333170","role":"Officer (SVP Manufacturing Operations)","n_filings":34,"first_seen":"2010-05-19","last_seen":"2013-09-10"}],"order_statement":"Newest transaction date first, id breaking the tie.","canonical_url":"https://ebomi.com/insider/0001429894","retrieved_at":"2026-08-27T14:58:18+00:00","coverage":{"filings":1506293,"transactions":4290787,"issuers":28597,"insiders":152303,"first_filed_date":"2003-06-30","last_filed_date":"2026-08-26","last_ingest":"2026-08-27T05:24:39.644631+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"}}