{"entity":{"type":"insider","cik":"0001359576","url":"/insider/0001359576","json_url":"/insider/0001359576.json","name":"Stalder James C","name_source":"as-filed","also_issuer":false,"cross_url":null},"coverage_statement":{"n_transactions":9,"n_filings":6,"first":"2008-06-04","last":"2013-02-22","span_basis":"filed_date"},"name_variants":[{"name":"Stalder James C","source":"filing","n_filings":6,"first_seen":"2008-06-04","last_seen":"2013-02-22"}],"transactions":[{"id":4548234,"accession":"0001181431-13-011786","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001181431-13-011786","line_url":"/filing/0001181431-13-011786#line-1","is_derivative":false,"issuer_cik":"0001315257","issuer_name":"Koppers Holdings Inc.","issuer_ticker":"KOP","issuer_name_source":null,"issuer_url":"/issuer/0001315257","owner_cik":"0001359576","owner_name":"Stalder James C","owner_display_name":"Stalder James C","owner_url":"/insider/0001359576","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":2000.0,"shares_display":"2,000","price_per_share":41.03,"price_display":"41.03","price_state":"stated","total_value":82060.0,"total_display":"82,060.00","total_whole":"82,060","shares_owned_after":8230.0,"shares_owned_after_display":"8,230","ownership_form":"D","is_10b5_1":null,"transaction_date":"2013-02-21","filed_date":"2013-02-22","scope":"insider"},{"id":3551207,"accession":"0001181431-12-061084","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001181431-12-061084","line_url":"/filing/0001181431-12-061084#line-1","is_derivative":false,"issuer_cik":"0001315257","issuer_name":"Koppers Holdings Inc.","issuer_ticker":"KOP","issuer_name_source":null,"issuer_url":"/issuer/0001315257","owner_cik":"0001359576","owner_name":"Stalder James C","owner_display_name":"Stalder James C","owner_url":"/insider/0001359576","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":1500.0,"shares_display":"1,500","price_per_share":34.01,"price_display":"34.01","price_state":"stated","total_value":51015.0,"total_display":"51,015.00","total_whole":"51,015","shares_owned_after":10230.0,"shares_owned_after_display":"10,230","ownership_form":"D","is_10b5_1":null,"transaction_date":"2012-11-27","filed_date":"2012-11-29","scope":"insider"},{"id":7195373,"accession":"0001181431-10-030420","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001181431-10-030420","line_url":"/filing/0001181431-10-030420#line-1","is_derivative":false,"issuer_cik":"0001315257","issuer_name":"Koppers Holdings Inc.","issuer_ticker":"KOP","issuer_name_source":null,"issuer_url":"/issuer/0001315257","owner_cik":"0001359576","owner_name":"Stalder James C","owner_display_name":"Stalder James C","owner_url":"/insider/0001359576","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":1500.0,"shares_display":"1,500","price_per_share":29.7,"price_display":"29.70","price_state":"stated","total_value":44550.0,"total_display":"44,550.00","total_whole":"44,550","shares_owned_after":8750.0,"shares_owned_after_display":"8,750","ownership_form":"D","is_10b5_1":null,"transaction_date":"2010-05-19","filed_date":"2010-06-01","scope":"insider"},{"id":5725667,"accession":"0001181431-09-040779","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001181431-09-040779","line_url":"/filing/0001181431-09-040779#line-1","is_derivative":false,"issuer_cik":"0001315257","issuer_name":"Koppers Holdings Inc.","issuer_ticker":"KOP","issuer_name_source":null,"issuer_url":"/issuer/0001315257","owner_cik":"0001359576","owner_name":"Stalder James C","owner_display_name":"Stalder James C","owner_url":"/insider/0001359576","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":1250.0,"shares_display":"1,250","price_per_share":27.04,"price_display":"27.04","price_state":"stated","total_value":33800.0,"total_display":"33,800.00","total_whole":"33,800","shares_owned_after":7250.0,"shares_owned_after_display":"7,250","ownership_form":"D","is_10b5_1":null,"transaction_date":"2009-08-20","filed_date":"2009-08-24","scope":"insider"},{"id":5643748,"accession":"0001181431-09-027111","txn_seq":4,"anchor":"line-4","filing_url":"/filing/0001181431-09-027111","line_url":"/filing/0001181431-09-027111","is_derivative":false,"issuer_cik":"0001315257","issuer_name":"Koppers Holdings Inc.","issuer_ticker":"KOP","issuer_name_source":null,"issuer_url":"/issuer/0001315257","owner_cik":"0001359576","owner_name":"Stalder James C","owner_display_name":"Stalder James C","owner_url":"/insider/0001359576","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":2000.0,"shares_display":"2,000","price_per_share":24.497,"price_display":"24.50","price_state":"stated","total_value":48994.0,"total_display":"48,994.00","total_whole":"48,994","shares_owned_after":8500.0,"shares_owned_after_display":"8,500","ownership_form":"D","is_10b5_1":null,"transaction_date":"2009-05-22","filed_date":"2009-05-27","scope":"insider","n_lines":4},{"id":3907251,"accession":"0001181431-08-036653","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001181431-08-036653","line_url":"/filing/0001181431-08-036653#line-1","is_derivative":false,"issuer_cik":"0001315257","issuer_name":"Koppers Holdings Inc.","issuer_ticker":"KOP","issuer_name_source":null,"issuer_url":"/issuer/0001315257","owner_cik":"0001359576","owner_name":"Stalder James C","owner_display_name":"Stalder James C","owner_url":"/insider/0001359576","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":1500.0,"shares_display":"1,500","price_per_share":42.96,"price_display":"42.96","price_state":"stated","total_value":64440.0,"total_display":"64,440.00","total_whole":"64,440","shares_owned_after":7500.0,"shares_owned_after_display":"7,500","ownership_form":"D","is_10b5_1":null,"transaction_date":"2008-05-29","filed_date":"2008-06-04","scope":"insider"}],"collapsed":true,"next_cursor":null,"ledger_fault":false,"count":{"value":9,"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":9,"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":9},"affiliations":[{"type":"issuer","type_label":"ISSUER","cik":"0001315257","name":"Koppers Holdings Inc.","url":"/issuer/0001315257","role":"Director","n_filings":6,"first_seen":"2008-06-04","last_seen":"2013-02-22"}],"order_statement":"Newest transaction date first, id breaking the tie.","canonical_url":"https://ebomi.com/insider/0001359576","retrieved_at":"2026-08-26T15:26:17+00:00","coverage":{"filings":1506293,"transactions":4290787,"issuers":28597,"insiders":152303,"first_filed_date":"2003-06-30","last_filed_date":"2026-08-25","last_ingest":"2026-08-26T05:24:25.741053+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"}}