{"entity":{"type":"insider","cik":"0001325201","url":"/insider/0001325201","json_url":"/insider/0001325201.json","name":"FOSTER MARK D","name_source":"as-filed","also_issuer":false,"cross_url":null},"coverage_statement":{"n_transactions":396,"n_filings":20,"first":"2005-07-07","last":"2007-10-03","span_basis":"filed_date"},"name_variants":[{"name":"FOSTER MARK D","source":"filing","n_filings":20,"first_seen":"2005-07-07","last_seen":"2007-10-03"}],"transactions":[{"id":6924469,"accession":"0001209191-07-056849","txn_seq":19,"anchor":"line-19","filing_url":"/filing/0001209191-07-056849","line_url":"/filing/0001209191-07-056849","is_derivative":false,"issuer_cik":"0001265888","issuer_name":"NEUSTAR INC","issuer_ticker":"NSR","issuer_name_source":null,"issuer_url":"/issuer/0001265888","owner_cik":"0001325201","owner_name":"FOSTER MARK D","owner_display_name":"FOSTER MARK D","owner_url":"/insider/0001325201","role":"Officer (Sr. VP & Chief Tech. Off)","role_mark":"O","role_mark_label":"Officer (Sr. VP & Chief Tech. Off)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Sr. VP & Chief Tech. Off.","security_title":"Class A Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":86603.0,"shares_display":"86,603","price_per_share":33.80506968580765,"price_display":"33.81","price_state":"stated","total_value":2927620.45,"total_display":"2,927,620.45","total_whole":"2,927,620","shares_owned_after":180306.0,"shares_owned_after_display":"180,306","ownership_form":"I","is_10b5_1":null,"transaction_date":"2007-10-02","filed_date":"2007-10-03","scope":"insider","n_lines":16},{"id":7201504,"accession":"0001209191-07-042206","txn_seq":26,"anchor":"line-26","filing_url":"/filing/0001209191-07-042206","line_url":"/filing/0001209191-07-042206","is_derivative":false,"issuer_cik":"0001265888","issuer_name":"NEUSTAR INC","issuer_ticker":"NSR","issuer_name_source":null,"issuer_url":"/issuer/0001265888","owner_cik":"0001325201","owner_name":"FOSTER MARK D","owner_display_name":"FOSTER MARK D","owner_url":"/insider/0001325201","role":"Officer (Sr. VP & Chief Tech. Off)","role_mark":"O","role_mark_label":"Officer (Sr. VP & Chief Tech. Off)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Sr. VP & Chief Tech. Off.","security_title":"Class A Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":86603.0,"shares_display":"86,603","price_per_share":29.519109961548676,"price_display":"29.52","price_state":"stated","total_value":2556443.48,"total_display":"2,556,443.48","total_whole":"2,556,443","shares_owned_after":250990.0,"shares_owned_after_display":"250,990","ownership_form":"I","is_10b5_1":null,"transaction_date":"2007-07-10","filed_date":"2007-07-12","scope":"insider","n_lines":23},{"id":7910907,"accession":"0001209191-07-021995","txn_seq":20,"anchor":"line-20","filing_url":"/filing/0001209191-07-021995","line_url":"/filing/0001209191-07-021995#line-20","is_derivative":false,"issuer_cik":"0001265888","issuer_name":"NEUSTAR INC","issuer_ticker":"NSR","issuer_name_source":null,"issuer_url":"/issuer/0001265888","owner_cik":"0001325201","owner_name":"FOSTER MARK D","owner_display_name":"FOSTER MARK D","owner_url":"/insider/0001325201","role":"Officer (Sr. VP & Chief Tech. Off)","role_mark":"O","role_mark_label":"Officer (Sr. VP & Chief Tech. Off)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Sr. VP & Chief Tech. Off.","security_title":"Class A Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":33200.0,"shares_display":"33,200","price_per_share":27.88,"price_display":"27.88","price_state":"stated","total_value":925616.0,"total_display":"925,616.00","total_whole":"925,616","shares_owned_after":51329.0,"shares_owned_after_display":"51,329","ownership_form":"I","is_10b5_1":null,"transaction_date":"2007-04-03","filed_date":"2007-04-03","scope":"insider"},{"id":7910904,"accession":"0001209191-07-021995","txn_seq":19,"anchor":"line-19","filing_url":"/filing/0001209191-07-021995","line_url":"/filing/0001209191-07-021995#line-19","is_derivative":false,"issuer_cik":"0001265888","issuer_name":"NEUSTAR INC","issuer_ticker":"NSR","issuer_name_source":null,"issuer_url":"/issuer/0001265888","owner_cik":"0001325201","owner_name":"FOSTER MARK D","owner_display_name":"FOSTER MARK D","owner_url":"/insider/0001325201","role":"Officer (Sr. VP & Chief Tech. Off)","role_mark":"O","role_mark_label":"Officer (Sr. VP & Chief Tech. Off)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Sr. VP & Chief Tech. Off.","security_title":"Class A Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":12903.0,"shares_display":"12,903","price_per_share":27.9,"price_display":"27.90","price_state":"stated","total_value":359993.7,"total_display":"359,993.70","total_whole":"359,994","shares_owned_after":90529.0,"shares_owned_after_display":"90,529","ownership_form":"I","is_10b5_1":null,"transaction_date":"2007-04-03","filed_date":"2007-04-03","scope":"insider"},{"id":7910901,"accession":"0001209191-07-021995","txn_seq":18,"anchor":"line-18","filing_url":"/filing/0001209191-07-021995","line_url":"/filing/0001209191-07-021995#line-18","is_derivative":false,"issuer_cik":"0001265888","issuer_name":"NEUSTAR INC","issuer_ticker":"NSR","issuer_name_source":null,"issuer_url":"/issuer/0001265888","owner_cik":"0001325201","owner_name":"FOSTER MARK D","owner_display_name":"FOSTER MARK D","owner_url":"/insider/0001325201","role":"Officer (Sr. VP & Chief Tech. Off)","role_mark":"O","role_mark_label":"Officer (Sr. VP & Chief Tech. Off)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Sr. VP & Chief Tech. Off.","security_title":"Class A Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":7700.0,"shares_display":"7,700","price_per_share":27.85,"price_display":"27.85","price_state":"stated","total_value":214445.0,"total_display":"214,445.00","total_whole":"214,445","shares_owned_after":38629.0,"shares_owned_after_display":"38,629","ownership_form":"I","is_10b5_1":null,"transaction_date":"2007-04-03","filed_date":"2007-04-03","scope":"insider"},{"id":7910898,"accession":"0001209191-07-021995","txn_seq":17,"anchor":"line-17","filing_url":"/filing/0001209191-07-021995","line_url":"/filing/0001209191-07-021995#line-17","is_derivative":false,"issuer_cik":"0001265888","issuer_name":"NEUSTAR INC","issuer_ticker":"NSR","issuer_name_source":null,"issuer_url":"/issuer/0001265888","owner_cik":"0001325201","owner_name":"FOSTER MARK D","owner_display_name":"FOSTER MARK D","owner_url":"/insider/0001325201","role":"Officer (Sr. VP & Chief Tech. Off)","role_mark":"O","role_mark_label":"Officer (Sr. VP & Chief Tech. Off)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Sr. VP & Chief Tech. Off.","security_title":"Class A Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":6000.0,"shares_display":"6,000","price_per_share":27.89,"price_display":"27.89","price_state":"stated","total_value":167340.0,"total_display":"167,340.00","total_whole":"167,340","shares_owned_after":84529.0,"shares_owned_after_display":"84,529","ownership_form":"I","is_10b5_1":null,"transaction_date":"2007-04-03","filed_date":"2007-04-03","scope":"insider"},{"id":7910893,"accession":"0001209191-07-021995","txn_seq":16,"anchor":"line-16","filing_url":"/filing/0001209191-07-021995","line_url":"/filing/0001209191-07-021995#line-16","is_derivative":false,"issuer_cik":"0001265888","issuer_name":"NEUSTAR INC","issuer_ticker":"NSR","issuer_name_source":null,"issuer_url":"/issuer/0001265888","owner_cik":"0001325201","owner_name":"FOSTER MARK D","owner_display_name":"FOSTER MARK D","owner_url":"/insider/0001325201","role":"Officer (Sr. VP & Chief Tech. Off)","role_mark":"O","role_mark_label":"Officer (Sr. VP & Chief Tech. Off)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Sr. VP & Chief Tech. Off.","security_title":"Class A Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":4500.0,"shares_display":"4,500","price_per_share":27.81,"price_display":"27.81","price_state":"stated","total_value":125145.0,"total_display":"125,145.00","total_whole":"125,145","shares_owned_after":26629.0,"shares_owned_after_display":"26,629","ownership_form":"I","is_10b5_1":null,"transaction_date":"2007-04-03","filed_date":"2007-04-03","scope":"insider"},{"id":7910890,"accession":"0001209191-07-021995","txn_seq":15,"anchor":"line-15","filing_url":"/filing/0001209191-07-021995","line_url":"/filing/0001209191-07-021995#line-15","is_derivative":false,"issuer_cik":"0001265888","issuer_name":"NEUSTAR INC","issuer_ticker":"NSR","issuer_name_source":null,"issuer_url":"/issuer/0001265888","owner_cik":"0001325201","owner_name":"FOSTER MARK D","owner_display_name":"FOSTER MARK D","owner_url":"/insider/0001325201","role":"Officer (Sr. VP & Chief Tech. Off)","role_mark":"O","role_mark_label":"Officer (Sr. VP & Chief Tech. Off)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Sr. VP & Chief Tech. Off.","security_title":"Class A Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":3800.0,"shares_display":"3,800","price_per_share":27.8,"price_display":"27.80","price_state":"stated","total_value":105640.0,"total_display":"105,640.00","total_whole":"105,640","shares_owned_after":22829.0,"shares_owned_after_display":"22,829","ownership_form":"I","is_10b5_1":null,"transaction_date":"2007-04-03","filed_date":"2007-04-03","scope":"insider"},{"id":7910887,"accession":"0001209191-07-021995","txn_seq":14,"anchor":"line-14","filing_url":"/filing/0001209191-07-021995","line_url":"/filing/0001209191-07-021995#line-14","is_derivative":false,"issuer_cik":"0001265888","issuer_name":"NEUSTAR INC","issuer_ticker":"NSR","issuer_name_source":null,"issuer_url":"/issuer/0001265888","owner_cik":"0001325201","owner_name":"FOSTER MARK D","owner_display_name":"FOSTER MARK D","owner_url":"/insider/0001325201","role":"Officer (Sr. VP & Chief Tech. Off)","role_mark":"O","role_mark_label":"Officer (Sr. VP & Chief Tech. Off)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Sr. VP & Chief Tech. Off.","security_title":"Class A Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":3500.0,"shares_display":"3,500","price_per_share":27.83,"price_display":"27.83","price_state":"stated","total_value":97405.0,"total_display":"97,405.00","total_whole":"97,405","shares_owned_after":32229.0,"shares_owned_after_display":"32,229","ownership_form":"I","is_10b5_1":null,"transaction_date":"2007-04-03","filed_date":"2007-04-03","scope":"insider"},{"id":7910884,"accession":"0001209191-07-021995","txn_seq":13,"anchor":"line-13","filing_url":"/filing/0001209191-07-021995","line_url":"/filing/0001209191-07-021995#line-13","is_derivative":false,"issuer_cik":"0001265888","issuer_name":"NEUSTAR INC","issuer_ticker":"NSR","issuer_name_source":null,"issuer_url":"/issuer/0001265888","owner_cik":"0001325201","owner_name":"FOSTER MARK D","owner_display_name":"FOSTER MARK D","owner_url":"/insider/0001325201","role":"Officer (Sr. VP & Chief Tech. Off)","role_mark":"O","role_mark_label":"Officer (Sr. VP & Chief Tech. Off)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Sr. VP & Chief Tech. Off.","security_title":"Class A Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":3200.0,"shares_display":"3,200","price_per_share":27.86,"price_display":"27.86","price_state":"stated","total_value":89152.0,"total_display":"89,152.00","total_whole":"89,152","shares_owned_after":46329.0,"shares_owned_after_display":"46,329","ownership_form":"I","is_10b5_1":null,"transaction_date":"2007-04-03","filed_date":"2007-04-03","scope":"insider"},{"id":7910881,"accession":"0001209191-07-021995","txn_seq":12,"anchor":"line-12","filing_url":"/filing/0001209191-07-021995","line_url":"/filing/0001209191-07-021995#line-12","is_derivative":false,"issuer_cik":"0001265888","issuer_name":"NEUSTAR INC","issuer_ticker":"NSR","issuer_name_source":null,"issuer_url":"/issuer/0001265888","owner_cik":"0001325201","owner_name":"FOSTER MARK D","owner_display_name":"FOSTER MARK D","owner_url":"/insider/0001325201","role":"Officer (Sr. VP & Chief Tech. Off)","role_mark":"O","role_mark_label":"Officer (Sr. VP & Chief Tech. Off)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Sr. VP & Chief Tech. Off.","security_title":"Class A Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":2900.0,"shares_display":"2,900","price_per_share":27.84,"price_display":"27.84","price_state":"stated","total_value":80736.0,"total_display":"80,736.00","total_whole":"80,736","shares_owned_after":35729.0,"shares_owned_after_display":"35,729","ownership_form":"I","is_10b5_1":null,"transaction_date":"2007-04-03","filed_date":"2007-04-03","scope":"insider"},{"id":7910878,"accession":"0001209191-07-021995","txn_seq":11,"anchor":"line-11","filing_url":"/filing/0001209191-07-021995","line_url":"/filing/0001209191-07-021995#line-11","is_derivative":false,"issuer_cik":"0001265888","issuer_name":"NEUSTAR INC","issuer_ticker":"NSR","issuer_name_source":null,"issuer_url":"/issuer/0001265888","owner_cik":"0001325201","owner_name":"FOSTER MARK D","owner_display_name":"FOSTER MARK D","owner_url":"/insider/0001325201","role":"Officer (Sr. VP & Chief Tech. Off)","role_mark":"O","role_mark_label":"Officer (Sr. VP & Chief Tech. Off)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Sr. VP & Chief Tech. Off.","security_title":"Class A Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":2900.0,"shares_display":"2,900","price_per_share":27.75,"price_display":"27.75","price_state":"stated","total_value":80475.0,"total_display":"80,475.00","total_whole":"80,475","shares_owned_after":17229.0,"shares_owned_after_display":"17,229","ownership_form":"I","is_10b5_1":null,"transaction_date":"2007-04-03","filed_date":"2007-04-03","scope":"insider"},{"id":7910875,"accession":"0001209191-07-021995","txn_seq":10,"anchor":"line-10","filing_url":"/filing/0001209191-07-021995","line_url":"/filing/0001209191-07-021995#line-10","is_derivative":false,"issuer_cik":"0001265888","issuer_name":"NEUSTAR INC","issuer_ticker":"NSR","issuer_name_source":null,"issuer_url":"/issuer/0001265888","owner_cik":"0001325201","owner_name":"FOSTER MARK D","owner_display_name":"FOSTER MARK D","owner_url":"/insider/0001325201","role":"Officer (Sr. VP & Chief Tech. Off)","role_mark":"O","role_mark_label":"Officer (Sr. VP & Chief Tech. Off)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Sr. VP & Chief Tech. Off.","security_title":"Class A Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":1800.0,"shares_display":"1,800","price_per_share":27.87,"price_display":"27.87","price_state":"stated","total_value":50166.0,"total_display":"50,166.00","total_whole":"50,166","shares_owned_after":49529.0,"shares_owned_after_display":"49,529","ownership_form":"I","is_10b5_1":null,"transaction_date":"2007-04-03","filed_date":"2007-04-03","scope":"insider"}],"collapsed":true,"next_cursor":"2007-04-03|7910875","ledger_fault":false,"count":{"value":396,"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":396,"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":396},"affiliations":[{"type":"issuer","type_label":"ISSUER","cik":"0001265888","name":"NEUSTAR INC","url":"/issuer/0001265888","role":"Officer (Sr. VP & Chief Tech. Off)","n_filings":20,"first_seen":"2005-07-07","last_seen":"2007-10-03"}],"order_statement":"Newest transaction date first, id breaking the tie.","canonical_url":"https://ebomi.com/insider/0001325201","retrieved_at":"2026-08-22T12:33:56+00:00","coverage":{"filings":1505395,"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"}}