{"entity":{"type":"insider","cik":"0001397838","url":"/insider/0001397838","json_url":"/insider/0001397838.json","name":"BUEHLER ALEXANDER J","name_source":"as-filed","also_issuer":false,"cross_url":null},"coverage_statement":{"n_transactions":16,"n_filings":10,"first":"2008-05-22","last":"2026-06-17","span_basis":"filed_date"},"name_variants":[{"name":"BUEHLER ALEXANDER J","source":"filing","n_filings":10,"first_seen":"2008-05-22","last_seen":"2026-06-17"}],"transactions":[{"id":5812295,"accession":"0001421517-26-000064","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001421517-26-000064","line_url":"/filing/0001421517-26-000064#line-2","is_derivative":false,"issuer_cik":"0001397838","issuer_name":"Energy Recovery, Inc.","issuer_ticker":"ERII","issuer_name_source":null,"issuer_url":"/issuer/0001397838","owner_cik":"0001397838","owner_name":"BUEHLER ALEXANDER J","owner_display_name":"BUEHLER ALEXANDER J","owner_url":"/insider/0001397838","role":"Director, Officer (Interim President and CEO)","role_mark":"D","role_mark_label":"Director","role_mark_generic":"Director","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Interim 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":14900.0,"shares_display":"14,900","price_per_share":8.71,"price_display":"8.71","price_state":"stated","total_value":129779.0,"total_display":"129,779.00","total_whole":"129,779","shares_owned_after":66755.0,"shares_owned_after_display":"66,755","ownership_form":"D","is_10b5_1":null,"transaction_date":"2026-06-15","filed_date":"2026-06-17","scope":"insider"},{"id":6799987,"accession":"0001421517-22-000084","txn_seq":3,"anchor":"line-3","filing_url":"/filing/0001421517-22-000084","line_url":"/filing/0001421517-22-000084#line-3","is_derivative":false,"issuer_cik":"0001397838","issuer_name":"Energy Recovery, Inc.","issuer_ticker":"ERII","issuer_name_source":null,"issuer_url":"/issuer/0001397838","owner_cik":"0001397838","owner_name":"BUEHLER ALEXANDER J","owner_display_name":"BUEHLER ALEXANDER J","owner_url":"/insider/0001397838","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":50000.0,"shares_display":"50,000","price_per_share":21.3445,"price_display":"21.34","price_state":"stated","total_value":1067225.0,"total_display":"1,067,225.00","total_whole":"1,067,225","shares_owned_after":14812.0,"shares_owned_after_display":"14,812","ownership_form":"D","is_10b5_1":null,"transaction_date":"2022-06-03","filed_date":"2022-06-06","scope":"insider"},{"id":6758400,"accession":"0001437749-22-013138","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001437749-22-013138","line_url":"/filing/0001437749-22-013138#line-1","is_derivative":false,"issuer_cik":"0001307579","issuer_name":"LIQTECH INTERNATIONAL INC","issuer_ticker":"LIQT","issuer_name_source":null,"issuer_url":"/issuer/0001307579","owner_cik":"0001397838","owner_name":"BUEHLER ALEXANDER J","owner_display_name":"BUEHLER ALEXANDER J","owner_url":"/insider/0001397838","role":"Director, Officer (Interim CEO)","role_mark":"D","role_mark_label":"Director","role_mark_generic":"Director","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Interim CEO","security_title":"Common Stock","transaction_code":"P","transaction_label":"Open-market purchase","open_market":true,"acquired_disposed":"A","direction_word":"acquired","shares":2000000.0,"shares_display":"2,000,000","price_per_share":0.5,"price_display":"0.50","price_state":"stated","total_value":1000000.0,"total_display":"1,000,000.00","total_whole":"1,000,000","shares_owned_after":2035900.0,"shares_owned_after_display":"2,035,900","ownership_form":"D","is_10b5_1":null,"transaction_date":"2022-05-17","filed_date":"2022-05-19","scope":"insider"},{"id":2362418,"accession":"0001437749-20-023868","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001437749-20-023868","line_url":"/filing/0001437749-20-023868#line-1","is_derivative":false,"issuer_cik":"0001397838","issuer_name":"Energy Recovery, Inc.","issuer_ticker":"ERII","issuer_name_source":null,"issuer_url":"/issuer/0001397838","owner_cik":"0001397838","owner_name":"BUEHLER ALEXANDER J","owner_display_name":"BUEHLER ALEXANDER J","owner_url":"/insider/0001397838","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":50000.0,"shares_display":"50,000","price_per_share":10.2817,"price_display":"10.28","price_state":"stated","total_value":514085.0,"total_display":"514,085.00","total_whole":"514,085","shares_owned_after":10000.0,"shares_owned_after_display":"10,000","ownership_form":"D","is_10b5_1":null,"transaction_date":"2020-11-11","filed_date":"2020-11-13","scope":"insider"},{"id":3024446,"accession":"0001437749-16-037564","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001437749-16-037564","line_url":"/filing/0001437749-16-037564#line-1","is_derivative":false,"issuer_cik":"0001397838","issuer_name":"Energy Recovery, Inc.","issuer_ticker":"ERII","issuer_name_source":null,"issuer_url":"/issuer/0001397838","owner_cik":"0001397838","owner_name":"BUEHLER ALEXANDER J","owner_display_name":"BUEHLER ALEXANDER J","owner_url":"/insider/0001397838","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":500.0,"shares_display":"500","price_per_share":13.01,"price_display":"13.01","price_state":"stated","total_value":6505.0,"total_display":"6,505.00","total_whole":"6,505","shares_owned_after":60000.0,"shares_owned_after_display":"60,000","ownership_form":"D","is_10b5_1":null,"transaction_date":"2016-08-15","filed_date":"2016-08-16","scope":"insider"},{"id":3097501,"accession":"0001437749-16-037299","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001437749-16-037299","line_url":"/filing/0001437749-16-037299#line-1","is_derivative":false,"issuer_cik":"0001397838","issuer_name":"Energy Recovery, Inc.","issuer_ticker":"ERII","issuer_name_source":null,"issuer_url":"/issuer/0001397838","owner_cik":"0001397838","owner_name":"BUEHLER ALEXANDER J","owner_display_name":"BUEHLER ALEXANDER J","owner_url":"/insider/0001397838","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":24500.0,"shares_display":"24,500","price_per_share":13.0515,"price_display":"13.05","price_state":"stated","total_value":319761.75,"total_display":"319,761.75","total_whole":"319,762","shares_owned_after":60500.0,"shares_owned_after_display":"60,500","ownership_form":"D","is_10b5_1":null,"transaction_date":"2016-08-11","filed_date":"2016-08-12","scope":"insider"},{"id":2941666,"accession":"0001437749-16-037136","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001437749-16-037136","line_url":"/filing/0001437749-16-037136#line-1","is_derivative":false,"issuer_cik":"0001397838","issuer_name":"Energy Recovery, Inc.","issuer_ticker":"ERII","issuer_name_source":null,"issuer_url":"/issuer/0001397838","owner_cik":"0001397838","owner_name":"BUEHLER ALEXANDER J","owner_display_name":"BUEHLER ALEXANDER J","owner_url":"/insider/0001397838","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":13.004,"price_display":"13.00","price_state":"stated","total_value":65020.0,"total_display":"65,020.00","total_whole":"65,020","shares_owned_after":85000.0,"shares_owned_after_display":"85,000","ownership_form":"D","is_10b5_1":null,"transaction_date":"2016-08-09","filed_date":"2016-08-11","scope":"insider"},{"id":2807797,"accession":"0001437749-16-027442","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001437749-16-027442","line_url":"/filing/0001437749-16-027442#line-1","is_derivative":false,"issuer_cik":"0001397838","issuer_name":"Energy Recovery, Inc.","issuer_ticker":"ERII","issuer_name_source":null,"issuer_url":"/issuer/0001397838","owner_cik":"0001397838","owner_name":"BUEHLER ALEXANDER J","owner_display_name":"BUEHLER ALEXANDER J","owner_url":"/insider/0001397838","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":30000.0,"shares_display":"30,000","price_per_share":9.7873,"price_display":"9.79","price_state":"stated","total_value":293619.0,"total_display":"293,619.00","total_whole":"293,619","shares_owned_after":90000.0,"shares_owned_after_display":"90,000","ownership_form":"D","is_10b5_1":null,"transaction_date":"2016-03-10","filed_date":"2016-03-11","scope":"insider"},{"id":8814745,"accession":"0001437749-15-004943","txn_seq":5,"anchor":"line-5","filing_url":"/filing/0001437749-15-004943","line_url":"/filing/0001437749-15-004943#line-5","is_derivative":false,"issuer_cik":"0001397838","issuer_name":"Energy Recovery, Inc.","issuer_ticker":"ERII","issuer_name_source":null,"issuer_url":"/issuer/0001397838","owner_cik":"0001397838","owner_name":"BUEHLER ALEXANDER J","owner_display_name":"BUEHLER ALEXANDER J","owner_url":"/insider/0001397838","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":15000.0,"shares_display":"15,000","price_per_share":2.8705,"price_display":"2.87","price_state":"stated","total_value":43057.5,"total_display":"43,057.50","total_whole":"43,058","shares_owned_after":120000.0,"shares_owned_after_display":"120,000","ownership_form":"D","is_10b5_1":null,"transaction_date":"2015-03-12","filed_date":"2015-03-12","scope":"insider"},{"id":8814744,"accession":"0001437749-15-004943","txn_seq":4,"anchor":"line-4","filing_url":"/filing/0001437749-15-004943","line_url":"/filing/0001437749-15-004943","is_derivative":false,"issuer_cik":"0001397838","issuer_name":"Energy Recovery, Inc.","issuer_ticker":"ERII","issuer_name_source":null,"issuer_url":"/issuer/0001397838","owner_cik":"0001397838","owner_name":"BUEHLER ALEXANDER J","owner_display_name":"BUEHLER ALEXANDER J","owner_url":"/insider/0001397838","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":75000.0,"shares_display":"75,000","price_per_share":2.81424,"price_display":"2.81","price_state":"stated","total_value":211068.0,"total_display":"211,068.00","total_whole":"211,068","shares_owned_after":105000.0,"shares_owned_after_display":"105,000","ownership_form":"D","is_10b5_1":null,"transaction_date":"2015-03-11","filed_date":"2015-03-12","scope":"insider","n_lines":3},{"id":8814741,"accession":"0001437749-15-004943","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001437749-15-004943","line_url":"/filing/0001437749-15-004943#line-1","is_derivative":false,"issuer_cik":"0001397838","issuer_name":"Energy Recovery, Inc.","issuer_ticker":"ERII","issuer_name_source":null,"issuer_url":"/issuer/0001397838","owner_cik":"0001397838","owner_name":"BUEHLER ALEXANDER J","owner_display_name":"BUEHLER ALEXANDER J","owner_url":"/insider/0001397838","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":30000.0,"shares_display":"30,000","price_per_share":2.7603,"price_display":"2.76","price_state":"stated","total_value":82809.0,"total_display":"82,809.00","total_whole":"82,809","shares_owned_after":30000.0,"shares_owned_after_display":"30,000","ownership_form":"D","is_10b5_1":null,"transaction_date":"2015-03-10","filed_date":"2015-03-12","scope":"insider"},{"id":3708823,"accession":"0001140361-08-013336","txn_seq":3,"anchor":"line-3","filing_url":"/filing/0001140361-08-013336","line_url":"/filing/0001140361-08-013336","is_derivative":false,"issuer_cik":"0000353020","issuer_name":"INSITUFORM TECHNOLOGIES INC","issuer_ticker":"INSU","issuer_name_source":null,"issuer_url":"/issuer/0000353020","owner_cik":"0001397838","owner_name":"BUEHLER ALEXANDER J","owner_display_name":"BUEHLER ALEXANDER J","owner_url":"/insider/0001397838","role":"Officer (V.P. - Marketing & Technology)","role_mark":"O","role_mark_label":"Officer (V.P. - Marketing & Technology)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"V.P. - Marketing & Technology","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":1319.0,"shares_display":"1,319","price_per_share":18.588483699772556,"price_display":"18.59","price_state":"stated","total_value":24518.21,"total_display":"24,518.21","total_whole":"24,518","shares_owned_after":27359.0,"shares_owned_after_display":"27,359","ownership_form":"D","is_10b5_1":null,"transaction_date":"2008-05-22","filed_date":"2008-05-22","scope":"insider","n_lines":3}],"collapsed":true,"next_cursor":null,"ledger_fault":false,"count":{"value":16,"kind":"exact"},"open_market_only":false,"composition":{"kind":"exact","rows":[{"code":"P","label":"Open-market purchase","n":6,"open_market":true},{"code":"S","label":"Open-market sale","n":10,"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":16},"affiliations":[{"type":"issuer","type_label":"ISSUER","cik":"0001421517","name":"Energy Recovery, Inc.","url":"/issuer/0001421517","role":"Director, Officer (Interim President and CEO)","n_filings":8,"first_seen":"2015-03-12","last_seen":"2026-06-17"},{"type":"issuer","type_label":"ISSUER","cik":"0001307579","name":"LIQTECH INTERNATIONAL INC","url":"/issuer/0001307579","role":"Director, Officer (Interim CEO)","n_filings":1,"first_seen":"2022-05-19","last_seen":"2022-05-19"},{"type":"issuer","type_label":"ISSUER","cik":"0000353020","name":"INSITUFORM TECHNOLOGIES INC","url":"/issuer/0000353020","role":"Officer (V.P. - Marketing & Technology)","n_filings":1,"first_seen":"2008-05-22","last_seen":"2008-05-22"}],"order_statement":"Newest transaction date first, id breaking the tie.","canonical_url":"https://ebomi.com/insider/0001397838","retrieved_at":"2026-08-25T17:10:28+00:00","coverage":{"filings":1506293,"transactions":4290787,"issuers":28597,"insiders":152303,"first_filed_date":"2003-06-30","last_filed_date":"2026-08-24","last_ingest":"2026-08-25T05:24:19.374141+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"}}