{"entity":{"type":"insider","cik":"0001620724","url":"/insider/0001620724","json_url":"/insider/0001620724.json","name":"Prouty Eric A","name_source":"as-filed","also_issuer":false,"cross_url":null},"coverage_statement":{"n_transactions":9,"n_filings":9,"first":"2018-05-24","last":"2026-05-15","span_basis":"filed_date"},"name_variants":[{"name":"Prouty Eric A","source":"filing","n_filings":9,"first_seen":"2018-05-24","last_seen":"2026-05-15"}],"transactions":[{"id":5868724,"accession":"0000925528-26-000038","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0000925528-26-000038","line_url":"/filing/0000925528-26-000038#line-1","is_derivative":false,"issuer_cik":"0000925528","issuer_name":"HUDSON TECHNOLOGIES INC /NY","issuer_ticker":"HDSN","issuer_name_source":null,"issuer_url":"/issuer/0000925528","owner_cik":"0001620724","owner_name":"Prouty Eric A","owner_display_name":"Prouty Eric A","owner_url":"/insider/0001620724","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":"P","transaction_label":"Open-market purchase","open_market":true,"acquired_disposed":"A","direction_word":"acquired","shares":5000.0,"shares_display":"5,000","price_per_share":4.84,"price_display":"4.84","price_state":"stated","total_value":24200.0,"total_display":"24,200.00","total_whole":"24,200","shares_owned_after":153852.0,"shares_owned_after_display":"153,852","ownership_form":"D","is_10b5_1":null,"transaction_date":"2026-05-13","filed_date":"2026-05-15","scope":"insider"},{"id":8110692,"accession":"0001062993-23-013601","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001062993-23-013601","line_url":"/filing/0001062993-23-013601#line-1","is_derivative":false,"issuer_cik":"0000925528","issuer_name":"HUDSON TECHNOLOGIES INC /NY","issuer_ticker":"HDSN","issuer_name_source":null,"issuer_url":"/issuer/0000925528","owner_cik":"0001620724","owner_name":"Prouty Eric A","owner_display_name":"Prouty Eric A","owner_url":"/insider/0001620724","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":9.56,"price_display":"9.56","price_state":"stated","total_value":191200.0,"total_display":"191,200.00","total_whole":"191,200","shares_owned_after":142021.0,"shares_owned_after_display":"142,021","ownership_form":"D","is_10b5_1":null,"transaction_date":"2023-06-14","filed_date":"2023-06-15","scope":"insider"},{"id":6266495,"accession":"0001062993-22-011903","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001062993-22-011903","line_url":"/filing/0001062993-22-011903#line-1","is_derivative":false,"issuer_cik":"0000925528","issuer_name":"HUDSON TECHNOLOGIES INC /NY","issuer_ticker":"HDSN","issuer_name_source":null,"issuer_url":"/issuer/0000925528","owner_cik":"0001620724","owner_name":"Prouty Eric A","owner_display_name":"Prouty Eric A","owner_url":"/insider/0001620724","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":75000.0,"shares_display":"75,000","price_per_share":9.0,"price_display":"9.00","price_state":"stated","total_value":675000.0,"total_display":"675,000.00","total_whole":"675,000","shares_owned_after":123169.0,"shares_owned_after_display":"123,169","ownership_form":"D","is_10b5_1":null,"transaction_date":"2022-05-09","filed_date":"2022-05-09","scope":"insider"},{"id":7809381,"accession":"0001010541-19-000005","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001010541-19-000005","line_url":"/filing/0001010541-19-000005#line-1","is_derivative":false,"issuer_cik":"0000925528","issuer_name":"HUDSON TECHNOLOGIES INC /NY","issuer_ticker":"HDSN","issuer_name_source":null,"issuer_url":"/issuer/0000925528","owner_cik":"0001620724","owner_name":"Prouty Eric A","owner_display_name":"Prouty Eric A","owner_url":"/insider/0001620724","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":"P","transaction_label":"Open-market purchase","open_market":true,"acquired_disposed":"A","direction_word":"acquired","shares":5000.0,"shares_display":"5,000","price_per_share":1.89,"price_display":"1.89","price_state":"stated","total_value":9450.0,"total_display":"9,450.00","total_whole":"9,450","shares_owned_after":80690.0,"shares_owned_after_display":"80,690","ownership_form":"D","is_10b5_1":null,"transaction_date":"2019-05-08","filed_date":"2019-05-09","scope":"insider"},{"id":8003343,"accession":"0001209191-19-004804","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001209191-19-004804","line_url":"/filing/0001209191-19-004804#line-1","is_derivative":false,"issuer_cik":"0001620724","issuer_name":"Aqua Metals, Inc.","issuer_ticker":"AQMS","issuer_name_source":null,"issuer_url":"/issuer/0001620724","owner_cik":"0001620724","owner_name":"Prouty Eric A","owner_display_name":"Prouty Eric A","owner_url":"/insider/0001620724","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":"P","transaction_label":"Open-market purchase","open_market":true,"acquired_disposed":"A","direction_word":"acquired","shares":5000.0,"shares_display":"5,000","price_per_share":1.9,"price_display":"1.90","price_state":"stated","total_value":9500.0,"total_display":"9,500.00","total_whole":"9,500","shares_owned_after":25622.0,"shares_owned_after_display":"25,622","ownership_form":"D","is_10b5_1":null,"transaction_date":"2019-01-17","filed_date":"2019-01-22","scope":"insider"},{"id":6181262,"accession":"0001010541-18-000027","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001010541-18-000027","line_url":"/filing/0001010541-18-000027#line-1","is_derivative":false,"issuer_cik":"0000925528","issuer_name":"HUDSON TECHNOLOGIES INC /NY","issuer_ticker":"HDSN","issuer_name_source":null,"issuer_url":"/issuer/0000925528","owner_cik":"0001620724","owner_name":"Prouty Eric A","owner_display_name":"Prouty Eric A","owner_url":"/insider/0001620724","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":"P","transaction_label":"Open-market purchase","open_market":true,"acquired_disposed":"A","direction_word":"acquired","shares":5000.0,"shares_display":"5,000","price_per_share":1.64,"price_display":"1.64","price_state":"stated","total_value":8200.0,"total_display":"8,200.00","total_whole":"8,200","shares_owned_after":75690.0,"shares_owned_after_display":"75,690","ownership_form":"D","is_10b5_1":null,"transaction_date":"2018-12-12","filed_date":"2018-12-12","scope":"insider"},{"id":6351041,"accession":"0001010541-18-000016","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001010541-18-000016","line_url":"/filing/0001010541-18-000016#line-1","is_derivative":false,"issuer_cik":"0000925528","issuer_name":"HUDSON TECHNOLOGIES INC /NY","issuer_ticker":"HDSN","issuer_name_source":null,"issuer_url":"/issuer/0000925528","owner_cik":"0001620724","owner_name":"Prouty Eric A","owner_display_name":"Prouty Eric A","owner_url":"/insider/0001620724","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":"P","transaction_label":"Open-market purchase","open_market":true,"acquired_disposed":"A","direction_word":"acquired","shares":5000.0,"shares_display":"5,000","price_per_share":1.81,"price_display":"1.81","price_state":"stated","total_value":9050.0,"total_display":"9,050.00","total_whole":"9,050","shares_owned_after":70690.0,"shares_owned_after_display":"70,690","ownership_form":"D","is_10b5_1":null,"transaction_date":"2018-08-15","filed_date":"2018-08-16","scope":"insider"},{"id":6660749,"accession":"0001209191-18-038409","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001209191-18-038409","line_url":"/filing/0001209191-18-038409#line-1","is_derivative":false,"issuer_cik":"0001620724","issuer_name":"Aqua Metals, Inc.","issuer_ticker":"AQMS","issuer_name_source":null,"issuer_url":"/issuer/0001620724","owner_cik":"0001620724","owner_name":"Prouty Eric A","owner_display_name":"Prouty Eric A","owner_url":"/insider/0001620724","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":"P","transaction_label":"Open-market purchase","open_market":true,"acquired_disposed":"A","direction_word":"acquired","shares":5000.0,"shares_display":"5,000","price_per_share":2.85,"price_display":"2.85","price_state":"stated","total_value":14250.0,"total_display":"14,250.00","total_whole":"14,250","shares_owned_after":5000.0,"shares_owned_after_display":"5,000","ownership_form":"D","is_10b5_1":null,"transaction_date":"2018-06-18","filed_date":"2018-06-18","scope":"insider"},{"id":6317704,"accession":"0001010541-18-000009","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001010541-18-000009","line_url":"/filing/0001010541-18-000009#line-1","is_derivative":false,"issuer_cik":"0000925528","issuer_name":"HUDSON TECHNOLOGIES INC /NY","issuer_ticker":"HDSN","issuer_name_source":null,"issuer_url":"/issuer/0000925528","owner_cik":"0001620724","owner_name":"Prouty Eric A","owner_display_name":"Prouty Eric A","owner_url":"/insider/0001620724","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":"P","transaction_label":"Open-market purchase","open_market":true,"acquired_disposed":"A","direction_word":"acquired","shares":5000.0,"shares_display":"5,000","price_per_share":2.33,"price_display":"2.33","price_state":"stated","total_value":11650.0,"total_display":"11,650.00","total_whole":"11,650","shares_owned_after":54326.0,"shares_owned_after_display":"54,326","ownership_form":"D","is_10b5_1":null,"transaction_date":"2018-05-24","filed_date":"2018-05-24","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":7,"open_market":true},{"code":"S","label":"Open-market sale","n":2,"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":"0000925528","name":"HUDSON TECHNOLOGIES INC /NY","url":"/issuer/0000925528","role":"Director","n_filings":7,"first_seen":"2018-05-24","last_seen":"2026-05-15"},{"type":"issuer","type_label":"ISSUER","cik":"0001621832","name":"Aqua Metals, Inc.","url":"/issuer/0001621832","role":"Director","n_filings":2,"first_seen":"2018-06-18","last_seen":"2019-01-22"}],"order_statement":"Newest transaction date first, id breaking the tie.","canonical_url":"https://ebomi.com/insider/0001620724","retrieved_at":"2026-08-27T21:02:03+00:00","coverage":{"filings":1506293,"transactions":4290787,"issuers":28597,"insiders":152303,"first_filed_date":"2003-06-30","last_filed_date":"2026-08-26","last_ingest":"2026-08-27T05:24:39.644631+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"}}