{"entity":{"type":"insider","cik":"0002001162","url":"/insider/0002001162","json_url":"/insider/0002001162.json","name":"Pfeiffenberger Brent","name_source":"as-filed","also_issuer":false,"cross_url":null},"coverage_statement":{"n_transactions":8,"n_filings":8,"first":"2025-02-20","last":"2025-12-16","span_basis":"filed_date"},"name_variants":[{"name":"Pfeiffenberger Brent","source":"filing","n_filings":8,"first_seen":"2025-02-20","last_seen":"2025-12-16"}],"transactions":[{"id":4936025,"accession":"0002001162-25-000009","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0002001162-25-000009","line_url":"/filing/0002001162-25-000009#line-1","is_derivative":false,"issuer_cik":"0001850119","issuer_name":"Century Therapeutics, Inc.","issuer_ticker":"IPSC","issuer_name_source":null,"issuer_url":"/issuer/0001850119","owner_cik":"0002001162","owner_name":"Pfeiffenberger Brent","owner_display_name":"Pfeiffenberger Brent","owner_url":"/insider/0002001162","role":"Director, Officer (President and CEO)","role_mark":"D","role_mark_label":"Director","role_mark_generic":"Director","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"President and CEO","security_title":"Common Stock","transaction_code":"P","transaction_label":"Open-market purchase","open_market":true,"acquired_disposed":"A","direction_word":"acquired","shares":52000.0,"shares_display":"52,000","price_per_share":0.5837,"price_display":"0.58","price_state":"stated","total_value":30352.4,"total_display":"30,352.40","total_whole":"30,352","shares_owned_after":3322990.0,"shares_owned_after_display":"3,322,990","ownership_form":"D","is_10b5_1":null,"transaction_date":"2025-12-12","filed_date":"2025-12-16","scope":"insider"},{"id":4780874,"accession":"0002001162-25-000005","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0002001162-25-000005","line_url":"/filing/0002001162-25-000005#line-1","is_derivative":false,"issuer_cik":"0001850119","issuer_name":"Century Therapeutics, Inc.","issuer_ticker":"IPSC","issuer_name_source":null,"issuer_url":"/issuer/0001850119","owner_cik":"0002001162","owner_name":"Pfeiffenberger Brent","owner_display_name":"Pfeiffenberger Brent","owner_url":"/insider/0002001162","role":"Director, Officer (President and CEO)","role_mark":"D","role_mark_label":"Director","role_mark_generic":"Director","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"President and CEO","security_title":"Common Stock","transaction_code":"P","transaction_label":"Open-market purchase","open_market":true,"acquired_disposed":"A","direction_word":"acquired","shares":35000.0,"shares_display":"35,000","price_per_share":0.4951,"price_display":"0.50","price_state":"stated","total_value":17328.5,"total_display":"17,328.50","total_whole":"17,329","shares_owned_after":3271453.0,"shares_owned_after_display":"3,271,453","ownership_form":"D","is_10b5_1":null,"transaction_date":"2025-11-19","filed_date":"2025-11-20","scope":"insider"},{"id":5222780,"accession":"0002001162-25-000003","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0002001162-25-000003","line_url":"/filing/0002001162-25-000003#line-1","is_derivative":false,"issuer_cik":"0001850119","issuer_name":"Century Therapeutics, Inc.","issuer_ticker":"IPSC","issuer_name_source":null,"issuer_url":"/issuer/0001850119","owner_cik":"0002001162","owner_name":"Pfeiffenberger Brent","owner_display_name":"Pfeiffenberger Brent","owner_url":"/insider/0002001162","role":"Director, Officer (President and CEO)","role_mark":"D","role_mark_label":"Director","role_mark_generic":"Director","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"President and CEO","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":32456.0,"shares_display":"32,456","price_per_share":0.454,"price_display":"0.45","price_state":"stated","total_value":14735.024,"total_display":"14,735.02","total_whole":"14,735","shares_owned_after":3236453.0,"shares_owned_after_display":"3,236,453","ownership_form":"D","is_10b5_1":null,"transaction_date":"2025-11-17","filed_date":"2025-11-19","scope":"insider"},{"id":5161149,"accession":"0001062993-25-015525","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001062993-25-015525","line_url":"/filing/0001062993-25-015525#line-1","is_derivative":false,"issuer_cik":"0001850119","issuer_name":"Century Therapeutics, Inc.","issuer_ticker":"IPSC","issuer_name_source":null,"issuer_url":"/issuer/0001850119","owner_cik":"0002001162","owner_name":"Pfeiffenberger Brent","owner_display_name":"Pfeiffenberger Brent","owner_url":"/insider/0002001162","role":"Director, Officer (President and CEO)","role_mark":"D","role_mark_label":"Director","role_mark_generic":"Director","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"President and CEO","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":488.0,"shares_display":"488","price_per_share":0.5,"price_display":"0.50","price_state":"stated","total_value":244.0,"total_display":"244.00","total_whole":"244","shares_owned_after":3268909.0,"shares_owned_after_display":"3,268,909","ownership_form":"D","is_10b5_1":null,"transaction_date":"2025-09-08","filed_date":"2025-09-10","scope":"insider"},{"id":4794683,"accession":"0001062993-25-011427","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001062993-25-011427","line_url":"/filing/0001062993-25-011427#line-1","is_derivative":false,"issuer_cik":"0001850119","issuer_name":"Century Therapeutics, Inc.","issuer_ticker":"IPSC","issuer_name_source":null,"issuer_url":"/issuer/0001850119","owner_cik":"0002001162","owner_name":"Pfeiffenberger Brent","owner_display_name":"Pfeiffenberger Brent","owner_url":"/insider/0002001162","role":"Director, Officer (President and CEO)","role_mark":"D","role_mark_label":"Director","role_mark_generic":"Director","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"President and CEO","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":475.0,"shares_display":"475","price_per_share":0.622,"price_display":"0.62","price_state":"stated","total_value":295.45,"total_display":"295.45","total_whole":"295","shares_owned_after":1681783.0,"shares_owned_after_display":"1,681,783","ownership_form":"D","is_10b5_1":null,"transaction_date":"2025-06-09","filed_date":"2025-06-11","scope":"insider"},{"id":4468469,"accession":"0001062993-25-009868","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001062993-25-009868","line_url":"/filing/0001062993-25-009868#line-1","is_derivative":false,"issuer_cik":"0001850119","issuer_name":"Century Therapeutics, Inc.","issuer_ticker":"IPSC","issuer_name_source":null,"issuer_url":"/issuer/0001850119","owner_cik":"0002001162","owner_name":"Pfeiffenberger Brent","owner_display_name":"Pfeiffenberger Brent","owner_url":"/insider/0002001162","role":"Director, Officer (President and CEO)","role_mark":"D","role_mark_label":"Director","role_mark_generic":"Director","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"President and CEO","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":29552.0,"shares_display":"29,552","price_per_share":0.546,"price_display":"0.55","price_state":"stated","total_value":16135.392,"total_display":"16,135.39","total_whole":"16,135","shares_owned_after":1682258.0,"shares_owned_after_display":"1,682,258","ownership_form":"D","is_10b5_1":null,"transaction_date":"2025-05-16","filed_date":"2025-05-20","scope":"insider"},{"id":4954255,"accession":"0001062993-25-005292","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001062993-25-005292","line_url":"/filing/0001062993-25-005292#line-1","is_derivative":false,"issuer_cik":"0001850119","issuer_name":"Century Therapeutics, Inc.","issuer_ticker":"IPSC","issuer_name_source":null,"issuer_url":"/issuer/0001850119","owner_cik":"0002001162","owner_name":"Pfeiffenberger Brent","owner_display_name":"Pfeiffenberger Brent","owner_url":"/insider/0002001162","role":"Director, Officer (President and CEO)","role_mark":"D","role_mark_label":"Director","role_mark_generic":"Director","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"President and CEO","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":2235.0,"shares_display":"2,235","price_per_share":0.615,"price_display":"0.62","price_state":"stated","total_value":1374.525,"total_display":"1,374.52","total_whole":"1,375","shares_owned_after":1190310.0,"shares_owned_after_display":"1,190,310","ownership_form":"D","is_10b5_1":null,"transaction_date":"2025-03-10","filed_date":"2025-03-12","scope":"insider"},{"id":4167079,"accession":"0001062993-25-003043","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001062993-25-003043","line_url":"/filing/0001062993-25-003043#line-1","is_derivative":false,"issuer_cik":"0001850119","issuer_name":"Century Therapeutics, Inc.","issuer_ticker":"IPSC","issuer_name_source":null,"issuer_url":"/issuer/0001850119","owner_cik":"0002001162","owner_name":"Pfeiffenberger Brent","owner_display_name":"Pfeiffenberger Brent","owner_url":"/insider/0002001162","role":"Director, Officer (President and CEO)","role_mark":"D","role_mark_label":"Director","role_mark_generic":"Director","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"President and CEO","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":34712.0,"shares_display":"34,712","price_per_share":0.783,"price_display":"0.78","price_state":"stated","total_value":27179.496,"total_display":"27,179.50","total_whole":"27,179","shares_owned_after":1192545.0,"shares_owned_after_display":"1,192,545","ownership_form":"D","is_10b5_1":null,"transaction_date":"2025-02-18","filed_date":"2025-02-20","scope":"insider"}],"collapsed":true,"next_cursor":null,"ledger_fault":false,"count":{"value":8,"kind":"exact"},"open_market_only":false,"composition":{"kind":"exact","rows":[{"code":"P","label":"Open-market purchase","n":2,"open_market":true},{"code":"S","label":"Open-market sale","n":6,"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":8},"affiliations":[{"type":"issuer","type_label":"ISSUER","cik":"0001850119","name":"Century Therapeutics, Inc.","url":"/issuer/0001850119","role":"Director, Officer (President and CEO)","n_filings":8,"first_seen":"2025-02-20","last_seen":"2025-12-16"}],"order_statement":"Newest transaction date first, id breaking the tie.","canonical_url":"https://ebomi.com/insider/0002001162","retrieved_at":"2026-08-26T10:20:19+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"}}