{"entity":{"type":"insider","cik":"0001299270","url":"/insider/0001299270","json_url":"/insider/0001299270.json","name":"Porter Christopher","name_source":"as-filed","also_issuer":false,"cross_url":null},"coverage_statement":{"n_transactions":48,"n_filings":3,"first":"2009-12-11","last":"2010-08-25","span_basis":"filed_date"},"name_variants":[{"name":"Porter Christopher","source":"filing","n_filings":3,"first_seen":"2009-12-11","last_seen":"2010-08-25"}],"transactions":[{"id":7394451,"accession":"0001235802-10-000165","txn_seq":14,"anchor":"line-14","filing_url":"/filing/0001235802-10-000165","line_url":"/filing/0001235802-10-000165","is_derivative":false,"issuer_cik":"0001114200","issuer_name":"AMERICAN MEDICAL SYSTEMS HOLDINGS INC","issuer_ticker":"AMMD","issuer_name_source":null,"issuer_url":"/issuer/0001114200","owner_cik":"0001299270","owner_name":"Porter Christopher","owner_display_name":"Porter Christopher","owner_url":"/insider/0001299270","role":"Director","role_mark":"D","role_mark_label":"Director","role_mark_generic":"Director","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":null,"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":20.413126266666666,"price_display":"20.41","price_state":"stated","total_value":306196.894,"total_display":"306,196.89","total_whole":"306,197","shares_owned_after":96916.0,"shares_owned_after_display":"96,916","ownership_form":"D","is_10b5_1":null,"transaction_date":"2010-08-23","filed_date":"2010-08-25","scope":"insider","n_lines":14},{"id":7747147,"accession":"0001235802-10-000164","txn_seq":8,"anchor":"line-8","filing_url":"/filing/0001235802-10-000164","line_url":"/filing/0001235802-10-000164","is_derivative":false,"issuer_cik":"0001114200","issuer_name":"AMERICAN MEDICAL SYSTEMS HOLDINGS INC","issuer_ticker":"AMMD","issuer_name_source":null,"issuer_url":"/issuer/0001114200","owner_cik":"0001299270","owner_name":"Porter Christopher","owner_display_name":"Porter Christopher","owner_url":"/insider/0001299270","role":"Director","role_mark":"D","role_mark_label":"Director","role_mark_generic":"Director","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":null,"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":20.561074,"price_display":"20.56","price_state":"stated","total_value":102805.37,"total_display":"102,805.37","total_whole":"102,805","shares_owned_after":104420.0,"shares_owned_after_display":"104,420","ownership_form":"D","is_10b5_1":null,"transaction_date":"2010-08-19","filed_date":"2010-08-23","scope":"insider","n_lines":8},{"id":5699889,"accession":"0001235802-09-000157","txn_seq":26,"anchor":"line-26","filing_url":"/filing/0001235802-09-000157","line_url":"/filing/0001235802-09-000157","is_derivative":false,"issuer_cik":"0001114200","issuer_name":"AMERICAN MEDICAL SYSTEMS HOLDINGS INC","issuer_ticker":"AMMD","issuer_name_source":null,"issuer_url":"/issuer/0001114200","owner_cik":"0001299270","owner_name":"Porter Christopher","owner_display_name":"Porter Christopher","owner_url":"/insider/0001299270","role":"Director","role_mark":"D","role_mark_label":"Director","role_mark_generic":"Director","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":null,"security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":25000.0,"shares_display":"25,000","price_per_share":18.1781776,"price_display":"18.18","price_state":"stated","total_value":454454.44,"total_display":"454,454.44","total_whole":"454,454","shares_owned_after":112347.0,"shares_owned_after_display":"112,347","ownership_form":"D","is_10b5_1":null,"transaction_date":"2009-12-10","filed_date":"2009-12-11","scope":"insider","n_lines":13},{"id":5699876,"accession":"0001235802-09-000157","txn_seq":13,"anchor":"line-13","filing_url":"/filing/0001235802-09-000157","line_url":"/filing/0001235802-09-000157","is_derivative":false,"issuer_cik":"0001114200","issuer_name":"AMERICAN MEDICAL SYSTEMS HOLDINGS INC","issuer_ticker":"AMMD","issuer_name_source":null,"issuer_url":"/issuer/0001114200","owner_cik":"0001299270","owner_name":"Porter Christopher","owner_display_name":"Porter Christopher","owner_url":"/insider/0001299270","role":"Director","role_mark":"D","role_mark_label":"Director","role_mark_generic":"Director","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":null,"security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":20000.0,"shares_display":"20,000","price_per_share":17.76605175,"price_display":"17.77","price_state":"stated","total_value":355321.035,"total_display":"355,321.04","total_whole":"355,321","shares_owned_after":142700.0,"shares_owned_after_display":"142,700","ownership_form":"D","is_10b5_1":null,"transaction_date":"2009-12-09","filed_date":"2009-12-11","scope":"insider","n_lines":13}],"collapsed":true,"next_cursor":null,"ledger_fault":false,"count":{"value":48,"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":48,"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":48},"affiliations":[{"type":"issuer","type_label":"ISSUER","cik":"0001114200","name":"AMERICAN MEDICAL SYSTEMS HOLDINGS INC","url":"/issuer/0001114200","role":"Director","n_filings":3,"first_seen":"2009-12-11","last_seen":"2010-08-25"}],"order_statement":"Newest transaction date first, id breaking the tie.","canonical_url":"https://ebomi.com/insider/0001299270","retrieved_at":"2026-08-23T03:17:01+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"}}