{"entity":{"type":"insider","cik":"0002028403","url":"/insider/0002028403","json_url":"/insider/0002028403.json","name":"Lam Chi Ming","name_source":"as-filed","also_issuer":false,"cross_url":null},"coverage_statement":{"n_transactions":12,"n_filings":3,"first":"2026-08-25","last":"2026-09-11","span_basis":"filed_date"},"name_variants":[{"name":"Lam Chi Ming","source":"filing","n_filings":3,"first_seen":"2026-08-25","last_seen":"2026-09-11"}],"transactions":[{"id":9308403,"accession":"0002028403-26-000016","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0002028403-26-000016","line_url":"/filing/0002028403-26-000016#line-2","is_derivative":false,"issuer_cik":"0001956166","issuer_name":"PMA Graphene Technology Group Inc.","issuer_ticker":"PMA","issuer_name_source":null,"issuer_url":"/issuer/0001956166","owner_cik":"0002028403","owner_name":"Lam Chi Ming","owner_display_name":"Lam Chi Ming","owner_url":"/insider/0002028403","role":"Director","filing_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":"Class A Ordinary Shares","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":120000.0,"shares_display":"120,000","price_per_share":1.3003,"price_display":"1.30","price_state":"stated","price_absent_label":null,"total_value":156036.0,"total_display":"156,036.00","value_suspect":false,"total_whole":"156,036","shares_owned_after":417865.0,"shares_owned_after_display":"417,865","ownership_form":"I","is_10b5_1":null,"transaction_date":"2026-09-11","filed_date":"2026-09-11","scope":"insider","form_type":"4","is_amendment":false,"amends_accession":null,"amends_tier":null,"amends_url":null},{"id":9308402,"accession":"0002028403-26-000016","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0002028403-26-000016","line_url":"/filing/0002028403-26-000016#line-1","is_derivative":false,"issuer_cik":"0001956166","issuer_name":"PMA Graphene Technology Group Inc.","issuer_ticker":"PMA","issuer_name_source":null,"issuer_url":"/issuer/0001956166","owner_cik":"0002028403","owner_name":"Lam Chi Ming","owner_display_name":"Lam Chi Ming","owner_url":"/insider/0002028403","role":"Director","filing_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":"Class A Ordinary Shares","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":150000.0,"shares_display":"150,000","price_per_share":1.2523,"price_display":"1.25","price_state":"stated","price_absent_label":null,"total_value":187845.0,"total_display":"187,845.00","value_suspect":false,"total_whole":"187,845","shares_owned_after":537865.0,"shares_owned_after_display":"537,865","ownership_form":"I","is_10b5_1":null,"transaction_date":"2026-09-09","filed_date":"2026-09-11","scope":"insider","form_type":"4","is_amendment":false,"amends_accession":null,"amends_tier":null,"amends_url":null},{"id":9308294,"accession":"0002028403-26-000014","txn_seq":5,"anchor":"line-5","filing_url":"/filing/0002028403-26-000014","line_url":"/filing/0002028403-26-000014#line-5","is_derivative":false,"issuer_cik":"0001956166","issuer_name":"PMA Graphene Technology Group Inc.","issuer_ticker":"PMA","issuer_name_source":null,"issuer_url":"/issuer/0001956166","owner_cik":"0002028403","owner_name":"Lam Chi Ming","owner_display_name":"Lam Chi Ming","owner_url":"/insider/0002028403","role":"Director, Ten percent owner","filing_role":"Director, Ten percent owner","role_mark":"D","role_mark_label":"Director","role_mark_generic":"Director","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":null,"security_title":"Class A Ordinary Shares","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":100000.0,"shares_display":"100,000","price_per_share":1.3195,"price_display":"1.32","price_state":"stated","price_absent_label":null,"total_value":131950.0,"total_display":"131,950.00","value_suspect":false,"total_whole":"131,950","shares_owned_after":687865.0,"shares_owned_after_display":"687,865","ownership_form":"I","is_10b5_1":null,"transaction_date":"2026-08-21","filed_date":"2026-09-11","scope":"insider","form_type":"4/A","is_amendment":true,"amends_accession":null,"amends_tier":null,"amends_url":null},{"id":9301415,"accession":"0002028403-26-000013","txn_seq":5,"anchor":"line-5","filing_url":"/filing/0002028403-26-000013","line_url":"/filing/0002028403-26-000013#line-5","is_derivative":false,"issuer_cik":"0001956166","issuer_name":"Ming Shing Group Holdings Ltd","issuer_ticker":"PMA","issuer_name_source":null,"issuer_url":"/issuer/0001956166","owner_cik":"0002028403","owner_name":"Lam Chi Ming","owner_display_name":"Lam Chi Ming","owner_url":"/insider/0002028403","role":"Director, Ten percent owner","filing_role":"Director, Ten percent owner","role_mark":"D","role_mark_label":"Director","role_mark_generic":"Director","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":null,"security_title":"Class A Ordinary Shares","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"A","direction_word":"acquired","shares":100000.0,"shares_display":"100,000","price_per_share":1.3195,"price_display":"1.32","price_state":"stated","price_absent_label":null,"total_value":131950.0,"total_display":"131,950.00","value_suspect":false,"total_whole":"131,950","shares_owned_after":687865.0,"shares_owned_after_display":"687,865","ownership_form":"I","is_10b5_1":null,"transaction_date":"2026-08-21","filed_date":"2026-08-25","scope":"insider","form_type":"4","is_amendment":false,"amends_accession":null,"amends_tier":null,"amends_url":null},{"id":9308293,"accession":"0002028403-26-000014","txn_seq":4,"anchor":"line-4","filing_url":"/filing/0002028403-26-000014","line_url":"/filing/0002028403-26-000014#line-4","is_derivative":false,"issuer_cik":"0001956166","issuer_name":"PMA Graphene Technology Group Inc.","issuer_ticker":"PMA","issuer_name_source":null,"issuer_url":"/issuer/0001956166","owner_cik":"0002028403","owner_name":"Lam Chi Ming","owner_display_name":"Lam Chi Ming","owner_url":"/insider/0002028403","role":"Director, Ten percent owner","filing_role":"Director, Ten percent owner","role_mark":"D","role_mark_label":"Director","role_mark_generic":"Director","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":null,"security_title":"Class A Ordinary Shares","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":1.6232,"price_display":"1.62","price_state":"stated","price_absent_label":null,"total_value":8116.0,"total_display":"8,116.00","value_suspect":false,"total_whole":"8,116","shares_owned_after":787865.0,"shares_owned_after_display":"787,865","ownership_form":"I","is_10b5_1":null,"transaction_date":"2026-08-18","filed_date":"2026-09-11","scope":"insider","form_type":"4/A","is_amendment":true,"amends_accession":null,"amends_tier":null,"amends_url":null},{"id":9301416,"accession":"0002028403-26-000013","txn_seq":4,"anchor":"line-4","filing_url":"/filing/0002028403-26-000013","line_url":"/filing/0002028403-26-000013#line-4","is_derivative":false,"issuer_cik":"0001956166","issuer_name":"Ming Shing Group Holdings Ltd","issuer_ticker":"PMA","issuer_name_source":null,"issuer_url":"/issuer/0001956166","owner_cik":"0002028403","owner_name":"Lam Chi Ming","owner_display_name":"Lam Chi Ming","owner_url":"/insider/0002028403","role":"Director, Ten percent owner","filing_role":"Director, Ten percent owner","role_mark":"D","role_mark_label":"Director","role_mark_generic":"Director","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":null,"security_title":"Class A Ordinary Shares","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"A","direction_word":"acquired","shares":5000.0,"shares_display":"5,000","price_per_share":1.6232,"price_display":"1.62","price_state":"stated","price_absent_label":null,"total_value":8116.0,"total_display":"8,116.00","value_suspect":false,"total_whole":"8,116","shares_owned_after":787865.0,"shares_owned_after_display":"787,865","ownership_form":"I","is_10b5_1":null,"transaction_date":"2026-08-18","filed_date":"2026-08-25","scope":"insider","form_type":"4","is_amendment":false,"amends_accession":null,"amends_tier":null,"amends_url":null},{"id":9308292,"accession":"0002028403-26-000014","txn_seq":3,"anchor":"line-3","filing_url":"/filing/0002028403-26-000014","line_url":"/filing/0002028403-26-000014#line-3","is_derivative":false,"issuer_cik":"0001956166","issuer_name":"PMA Graphene Technology Group Inc.","issuer_ticker":"PMA","issuer_name_source":null,"issuer_url":"/issuer/0001956166","owner_cik":"0002028403","owner_name":"Lam Chi Ming","owner_display_name":"Lam Chi Ming","owner_url":"/insider/0002028403","role":"Director, Ten percent owner","filing_role":"Director, Ten percent owner","role_mark":"D","role_mark_label":"Director","role_mark_generic":"Director","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":null,"security_title":"Class A Ordinary Shares","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":1.745,"price_display":"1.74","price_state":"stated","price_absent_label":null,"total_value":26175.0,"total_display":"26,175.00","value_suspect":false,"total_whole":"26,175","shares_owned_after":792865.0,"shares_owned_after_display":"792,865","ownership_form":"I","is_10b5_1":null,"transaction_date":"2026-08-17","filed_date":"2026-09-11","scope":"insider","form_type":"4/A","is_amendment":true,"amends_accession":null,"amends_tier":null,"amends_url":null},{"id":9301417,"accession":"0002028403-26-000013","txn_seq":3,"anchor":"line-3","filing_url":"/filing/0002028403-26-000013","line_url":"/filing/0002028403-26-000013#line-3","is_derivative":false,"issuer_cik":"0001956166","issuer_name":"Ming Shing Group Holdings Ltd","issuer_ticker":"PMA","issuer_name_source":null,"issuer_url":"/issuer/0001956166","owner_cik":"0002028403","owner_name":"Lam Chi Ming","owner_display_name":"Lam Chi Ming","owner_url":"/insider/0002028403","role":"Director, Ten percent owner","filing_role":"Director, Ten percent owner","role_mark":"D","role_mark_label":"Director","role_mark_generic":"Director","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":null,"security_title":"Class A Ordinary Shares","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"A","direction_word":"acquired","shares":15000.0,"shares_display":"15,000","price_per_share":1.745,"price_display":"1.74","price_state":"stated","price_absent_label":null,"total_value":26175.0,"total_display":"26,175.00","value_suspect":false,"total_whole":"26,175","shares_owned_after":792865.0,"shares_owned_after_display":"792,865","ownership_form":"I","is_10b5_1":null,"transaction_date":"2026-08-17","filed_date":"2026-08-25","scope":"insider","form_type":"4","is_amendment":false,"amends_accession":null,"amends_tier":null,"amends_url":null},{"id":9308291,"accession":"0002028403-26-000014","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0002028403-26-000014","line_url":"/filing/0002028403-26-000014#line-2","is_derivative":false,"issuer_cik":"0001956166","issuer_name":"PMA Graphene Technology Group Inc.","issuer_ticker":"PMA","issuer_name_source":null,"issuer_url":"/issuer/0001956166","owner_cik":"0002028403","owner_name":"Lam Chi Ming","owner_display_name":"Lam Chi Ming","owner_url":"/insider/0002028403","role":"Director, Ten percent owner","filing_role":"Director, Ten percent owner","role_mark":"D","role_mark_label":"Director","role_mark_generic":"Director","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":null,"security_title":"Class A Ordinary Shares","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":100000.0,"shares_display":"100,000","price_per_share":1.3697,"price_display":"1.37","price_state":"stated","price_absent_label":null,"total_value":136970.0,"total_display":"136,970.00","value_suspect":false,"total_whole":"136,970","shares_owned_after":807865.0,"shares_owned_after_display":"807,865","ownership_form":"I","is_10b5_1":null,"transaction_date":"2026-08-14","filed_date":"2026-09-11","scope":"insider","form_type":"4/A","is_amendment":true,"amends_accession":null,"amends_tier":null,"amends_url":null},{"id":9301418,"accession":"0002028403-26-000013","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0002028403-26-000013","line_url":"/filing/0002028403-26-000013#line-2","is_derivative":false,"issuer_cik":"0001956166","issuer_name":"Ming Shing Group Holdings Ltd","issuer_ticker":"PMA","issuer_name_source":null,"issuer_url":"/issuer/0001956166","owner_cik":"0002028403","owner_name":"Lam Chi Ming","owner_display_name":"Lam Chi Ming","owner_url":"/insider/0002028403","role":"Director, Ten percent owner","filing_role":"Director, Ten percent owner","role_mark":"D","role_mark_label":"Director","role_mark_generic":"Director","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":null,"security_title":"Class A Ordinary Shares","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":100000.0,"shares_display":"100,000","price_per_share":1.3697,"price_display":"1.37","price_state":"stated","price_absent_label":null,"total_value":136970.0,"total_display":"136,970.00","value_suspect":false,"total_whole":"136,970","shares_owned_after":807865.0,"shares_owned_after_display":"807,865","ownership_form":"I","is_10b5_1":null,"transaction_date":"2026-08-14","filed_date":"2026-08-25","scope":"insider","form_type":"4","is_amendment":false,"amends_accession":null,"amends_tier":null,"amends_url":null},{"id":9308290,"accession":"0002028403-26-000014","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0002028403-26-000014","line_url":"/filing/0002028403-26-000014#line-1","is_derivative":false,"issuer_cik":"0001956166","issuer_name":"PMA Graphene Technology Group Inc.","issuer_ticker":"PMA","issuer_name_source":null,"issuer_url":"/issuer/0001956166","owner_cik":"0002028403","owner_name":"Lam Chi Ming","owner_display_name":"Lam Chi Ming","owner_url":"/insider/0002028403","role":"Director, Ten percent owner","filing_role":"Director, Ten percent owner","role_mark":"D","role_mark_label":"Director","role_mark_generic":"Director","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":null,"security_title":"Class A Ordinary Shares","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":100000.0,"shares_display":"100,000","price_per_share":1.1003,"price_display":"1.10","price_state":"stated","price_absent_label":null,"total_value":110030.0,"total_display":"110,030.00","value_suspect":false,"total_whole":"110,030","shares_owned_after":907865.0,"shares_owned_after_display":"907,865","ownership_form":"I","is_10b5_1":null,"transaction_date":"2026-08-13","filed_date":"2026-09-11","scope":"insider","form_type":"4/A","is_amendment":true,"amends_accession":null,"amends_tier":null,"amends_url":null},{"id":9301419,"accession":"0002028403-26-000013","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0002028403-26-000013","line_url":"/filing/0002028403-26-000013#line-1","is_derivative":false,"issuer_cik":"0001956166","issuer_name":"Ming Shing Group Holdings Ltd","issuer_ticker":"PMA","issuer_name_source":null,"issuer_url":"/issuer/0001956166","owner_cik":"0002028403","owner_name":"Lam Chi Ming","owner_display_name":"Lam Chi Ming","owner_url":"/insider/0002028403","role":"Director, Ten percent owner","filing_role":"Director, Ten percent owner","role_mark":"D","role_mark_label":"Director","role_mark_generic":"Director","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":null,"security_title":"Class A Ordinary Shares","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":100000.0,"shares_display":"100,000","price_per_share":1.1003,"price_display":"1.10","price_state":"stated","price_absent_label":null,"total_value":110030.0,"total_display":"110,030.00","value_suspect":false,"total_whole":"110,030","shares_owned_after":907865.0,"shares_owned_after_display":"907,865","ownership_form":"I","is_10b5_1":null,"transaction_date":"2026-08-13","filed_date":"2026-08-25","scope":"insider","form_type":"4","is_amendment":false,"amends_accession":null,"amends_tier":null,"amends_url":null}],"collapsed":true,"next_cursor":null,"ledger_fault":false,"count":{"value":12,"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":12,"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":12},"affiliations":[{"type":"issuer","type_label":"ISSUER","cik":"0001956166","name":"PMA Graphene Technology Group Inc.","url":"/issuer/0001956166","role":"Director, Ten percent owner","n_filings":3,"first_seen":"2026-08-25","last_seen":"2026-09-11"}],"context":{"size":{"state":"not-applicable","scope":"insider","value":null,"n":0,"n_larger":0,"n_smaller":0,"needs":5,"rank":null,"percentile":null,"is_largest":false,"is_smallest":false,"ties":0,"prior_n":null,"prior_larger":null,"window":{"basis":"transaction_date","rule":"this catalog holds for this insider","from":null,"to":null},"sentence":"Not ranked: no trade was named to place in this insider's history.","value_display":null},"cadence":{"state":"computed","n_days":7,"prior_day":null,"days_since_prior":null,"median_gap_days":2,"window":{"basis":"transaction_date","rule":"every open-market trade this catalog holds for this insider","from":"2026-08-13","to":"2026-09-11"},"sentence":"The median gap between this insider's 7 stored trading days is 2 days; counted over 2026-08-13 to 2026-09-11."},"direction":{"state":"computed","n_filings":3,"n_buys":0,"n_sells":3,"buy_value":0.0,"sell_value":1170363.0,"buy_share":0,"window":{"basis":"transaction_date","rule":"every open-market trade this catalog holds for this insider","from":"2026-08-13","to":"2026-09-11"},"sentence":"0 purchases and 3 sales across the 3 open-market filings this catalog holds for this insider, 2026-08-13 to 2026-09-11.","buy_value_display":null,"sell_value_display":"1,170,363"},"regularity":{"state":"insufficient-history","classification":null,"n_years":1,"n_months":2,"needs_years":3,"run_years":1,"run_month":8,"subject_month":null,"subject_run_years":0,"window":{"basis":"calendar year of transaction_date","rule":"every year this catalog holds an open-market trade for this insider","from_year":2026,"to_year":2026},"sentence":"Not classified: this catalog holds open-market trades for this insider in 1 calendar year, and the calendar-regularity proxy needs at least 3.","basis":"calendar regularity, because this catalog holds no Rule 10b5-1 plan flag on any row"},"population_note":"Every figure in this section counts only open-market purchase and sale lines whose price the filing stated. A line with no stated price is excluded rather than counted as zero, so an insider who filed without one is not counted here as not having filed. The exception is named wherever it appears: the number of insiders this catalog has ever recorded filing for an issuer applies no price filter at all, because filtering it would answer how many insiders have ever been priced rather than how many have ever filed."},"order_statement":"Newest transaction date first, id breaking the tie.","canonical_url":"https://ebomi.com/insider/0002028403","retrieved_at":"2026-09-13T06:24:11+00:00","coverage":{"filings":1506293,"transactions":4315697,"issuers":17695,"insiders":168624,"first_filed_date":"2003-06-30","last_filed_date":"2026-09-11","last_ingest":"2026-09-12T05:22:14.189439+00:00","counts_are":{"filings":"estimate","transactions":"estimate","issuers":"exact","insiders":"exact"},"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.","code":"MIT","code_url":"https://spdx.org/licenses/MIT.html","grant":"CC-BY-4.0","grant_url":"https://creativecommons.org/licenses/by/4.0/","grant_note":"ebomi's own layer, the parsed and normalised records and this presentation, is released under CC BY 4.0. Attribution is the citation_request below. The software is released under the MIT License.","citation_request":"Balogh, A. Insider trading. Scientific Data 10, 237 (2023)","url":"https://ebomi.com/license"},"fair_use":{"policy":"These JSON endpoints need no account and no key, and their terms are published at /license rather than discovered from a response header. A managed challenge sits in front of this path at the edge, so a scripted client should expect an interstitial rather than JSON. Use the published dataset for bulk work, read these at a human pace, and identify your client in the User-Agent header. If you have a research use that needs more, ask and we will raise it.","edge_challenge":true,"counted_on_this_path":true,"allowance_per_hour":1200,"allowance_window_seconds":3600,"allowance_key":"/24 or /48 network, not the User-Agent","if_you_need_more":"mailto:balogh@unimelb.edu.au","policy_url":"https://ebomi.com/license","bulk_alternative":"doi:10.7910/DVN/VH6GVH","bulk_alternative_url":"https://doi.org/10.7910/DVN/VH6GVH","cite_as":"Balogh, A. Insider trading. Scientific Data 10, 237 (2023). doi:10.1038/s41597-023-02147-6"}}