{"cik":64463,"company":{"entity_status":null,"filings":[{"accession":"0001493152-26-044444","document":"form8-k.htm","filed":"2026-09-28","form":"8-K","items":"7.01,9.01","report_date":"2026-09-28"},{"accession":"0001493152-26-044152","document":"xslF345X06/ownership.xml","filed":"2026-09-24","form":"4","items":"","report_date":"2026-09-23"},{"accession":"0001493152-26-043141","document":"xslF345X06/ownership.xml","filed":"2026-09-17","form":"4","items":"","report_date":"2026-09-01"},{"accession":"0001493152-26-043140","document":"xslF345X06/ownership.xml","filed":"2026-09-17","form":"4","items":"","report_date":"2026-09-01"},{"accession":"0001493152-26-042479","document":"form8-k.htm","filed":"2026-09-14","form":"8-K","items":"7.01,9.01","report_date":"2026-09-14"},{"accession":"0001493152-26-041870","document":"form8-k.htm","filed":"2026-09-09","form":"8-K","items":"7.01,9.01","report_date":"2026-09-09"},{"accession":"0001493152-26-041699","document":"form8-k.htm","filed":"2026-09-08","form":"8-K","items":"7.01,9.01","report_date":"2026-09-08"},{"accession":"0001493152-26-041566","document":"xslF345X06/ownership.xml","filed":"2026-09-04","form":"4","items":"","report_date":"2026-09-03"},{"accession":"0001493152-26-041022","document":"xslF345X06/ownership.xml","filed":"2026-09-01","form":"4","items":"","report_date":"2026-08-28"},{"accession":"0001493152-26-041021","document":"xslF345X06/ownership.xml","filed":"2026-09-01","form":"4","items":"","report_date":"2026-09-01"},{"accession":"0001493152-26-040836","document":"xslF345X06/ownership.xml","filed":"2026-08-31","form":"4","items":"","report_date":"2026-08-28"},{"accession":"0001493152-26-040464","document":"xslF345X06/ownership.xml","filed":"2026-08-27","form":"4","items":"","report_date":"2026-08-26"},{"accession":"0001493152-26-039964","document":"form8-k.htm","filed":"2026-08-25","form":"8-K","items":"7.01,9.01","report_date":"2026-08-25"},{"accession":"0001628280-26-058611","document":"slnh-20260824.htm","filed":"2026-08-24","form":"DEF 14A","items":"","report_date":"2025-12-31"},{"accession":"0001493152-26-039781","document":"form8-k.htm","filed":"2026-08-24","form":"8-K","items":"7.01,9.01","report_date":"2026-08-24"},{"accession":"0001628280-26-056702","document":"slnh-20260630.htm","filed":"2026-08-13","form":"10-Q","items":"","report_date":"2026-06-30"},{"accession":"0001493152-26-037734","document":"form8-k.htm","filed":"2026-08-13","form":"8-K","items":"2.02,7.01,9.01","report_date":"2026-08-13"},{"accession":"0001493152-26-036105","document":"form8-k.htm","filed":"2026-08-05","form":"8-K","items":"7.01","report_date":"2026-08-05"},{"accession":"0001493152-26-035326","document":"form8-k.htm","filed":"2026-07-30","form":"8-K","items":"7.01,9.01","report_date":"2026-07-30"},{"accession":"0001493152-26-034600","document":"form8-k.htm","filed":"2026-07-24","form":"8-K","items":"5.02,9.01","report_date":"2026-07-09"},{"accession":"0001493152-26-033447","document":"form8-k.htm","filed":"2026-07-16","form":"8-K","items":"7.01,9.01","report_date":"2026-07-16"},{"accession":"0001493152-26-033111","document":"form8-k.htm","filed":"2026-07-14","form":"8-K","items":"7.01,9.01","report_date":"2026-07-14"},{"accession":"0001493152-26-030026","document":"form8-k.htm","filed":"2026-06-25","form":"8-K","items":"5.03,9.01","report_date":"2026-06-23"},{"accession":"0001493152-26-028986","document":"form8-ka.htm","filed":"2026-06-17","form":"8-K/A","items":"9.01","report_date":"2026-04-01"},{"accession":"0001493152-26-027852","document":"form8-k.htm","filed":"2026-06-09","form":"8-K","items":"1.01,7.01,9.01","report_date":"2026-06-03"},{"accession":"0001493152-26-024511","document":"form8-k.htm","filed":"2026-05-20","form":"8-K","items":"1.01,7.01,9.01","report_date":"2026-05-19"},{"accession":"0001493152-26-024060","document":"form8-k.htm","filed":"2026-05-18","form":"8-K","items":"2.02,7.01,9.01","report_date":"2026-05-18"},{"accession":"0001628280-26-035538","document":"slnh-20260331.htm","filed":"2026-05-15","form":"10-Q","items":"","report_date":"2026-03-31"},{"accession":"0001493152-26-021610","document":"form8-k.htm","filed":"2026-05-07","form":"8-K","items":"7.01,9.01","report_date":"2026-05-07"},{"accession":"0001493152-26-020814","document":"form8-k.htm","filed":"2026-05-01","form":"8-K","items":"8.01,9.01","report_date":"2026-04-30"},{"accession":"0001493152-26-019241","document":"form8-k.htm","filed":"2026-04-28","form":"8-K","items":"7.01,9.01","report_date":"2026-04-28"},{"accession":"0001493152-26-018192","document":"form8-k.htm","filed":"2026-04-21","form":"8-K","items":"7.01,9.01","report_date":"2026-04-21"},{"accession":"0001493152-26-017877","document":"form8-k.htm","filed":"2026-04-17","form":"8-K","items":"1.01,2.03,3.02,9.01","report_date":"2026-04-15"},{"accession":"0001493152-26-016971","document":"form8-k.htm","filed":"2026-04-16","form":"8-K","items":"7.01,9.01","report_date":"2026-04-16"},{"accession":"0001493152-26-016620","document":"form8-k.htm","filed":"2026-04-15","form":"8-K","items":"3.01","report_date":"2026-04-10"},{"accession":"0001493152-26-015809","document":"form8-k.htm","filed":"2026-04-09","form":"8-K","items":"7.01,9.01","report_date":"2026-04-09"},{"accession":"0001493152-26-015140","document":"form8-k.htm","filed":"2026-04-03","form":"8-K","items":"1.01,2.03,3.02,9.01","report_date":"2026-04-01"},{"accession":"0001493152-26-014800","document":"form8-k.htm","filed":"2026-04-02","form":"8-K","items":"7.01,9.01","report_date":"2026-04-02"},{"accession":"0001493152-26-013710","document":"form8-k.htm","filed":"2026-03-31","form":"8-K","items":"4.01,9.01","report_date":"2026-03-29"},{"accession":"0001628280-26-021847","document":"slnh-20251231.htm","filed":"2026-03-30","form":"10-K","items":"","report_date":"2025-12-31"}],"former_names":[{"from":"1995-04-17T04:00:00.000Z","name":"MECHANICAL TECHNOLOGY INC","to":"2021-10-29T04:00:00.000Z"}],"gleif_parents":[],"headquarters":[],"insiders":[{"accession":"0001493152-26-029596","acquired_disposed":"D","code":"S","date":"2026-06-22","derivative":false,"filed":"2026-06-22","following_shares":"106233.0","form":"4","owners":["Phelan William P"],"plan_10b5_1":false,"price":"11.0","security":"9.0% Series A Cumulative Perpetual Preferred Stock","shares":"3074.0"},{"accession":"0001493152-26-029596","acquired_disposed":"D","code":"S","date":"2026-06-18","derivative":false,"filed":"2026-06-22","following_shares":"109307.0","form":"4","owners":["Phelan William P"],"plan_10b5_1":false,"price":"11.0","security":"9.0% Series A Cumulative Perpetual Preferred Stock","shares":"4813.0"},{"accession":"0001493152-26-029596","acquired_disposed":"D","code":"S","date":"2026-06-17","derivative":false,"filed":"2026-06-22","following_shares":"114120.0","form":"4","owners":["Phelan William P"],"plan_10b5_1":false,"price":"10.75","security":"9.0% Series A Cumulative Perpetual Preferred Stock","shares":"10113.0"},{"accession":"0001493152-26-029094","acquired_disposed":"D","code":"S","date":"2026-06-15","derivative":false,"filed":"2026-06-17","following_shares":"1516760.0","form":"4","owners":["Thomas Jessica L."],"plan_10b5_1":false,"price":"1.7","security":"Common Stock","shares":"4838.0"},{"accession":"0001493152-26-028471","acquired_disposed":"D","code":"S","date":"2026-06-11","derivative":false,"filed":"2026-06-12","following_shares":"0.0","form":"4","owners":["OReilly Mary Jennifer"],"plan_10b5_1":false,"price":"11.1","security":"9.0% Series A Cumulative Perpetual Preferred Stock","shares":"1071.0"},{"accession":"0001493152-26-028471","acquired_disposed":"D","code":"S","date":"2026-06-10","derivative":false,"filed":"2026-06-12","following_shares":"1071.0","form":"4","owners":["OReilly Mary Jennifer"],"plan_10b5_1":false,"price":"10.8","security":"9.0% Series A Cumulative Perpetual Preferred Stock","shares":"5729.0"},{"accession":"0001493152-26-028469","acquired_disposed":"D","code":"S","date":"2026-06-10","derivative":false,"filed":"2026-06-12","following_shares":"900.0","form":"4","owners":["Thomas Jessica L."],"plan_10b5_1":false,"price":"10.9","security":"9.0% Series A Cumulative Perpetual Preferred Stock","shares":"2500.0"},{"accession":"0001493152-26-028138","acquired_disposed":"D","code":"S","date":"2026-06-08","derivative":false,"filed":"2026-06-10","following_shares":"6800.0","form":"4","owners":["OReilly Mary Jennifer"],"plan_10b5_1":false,"price":"10.8","security":"9.0% Series A Cumulative Perpetual Preferred Stock","shares":"6600.0"},{"accession":"0001493152-26-027115","acquired_disposed":"A","code":"A","date":"2026-06-01","derivative":false,"filed":"2026-06-03","following_shares":"17132816.0","form":"4","owners":["TOPOREK MICHAEL"],"plan_10b5_1":false,"price":"0.0","security":"Common Stock","shares":"7310534.0"},{"accession":"0001493152-26-027106","acquired_disposed":"A","code":"A","date":"2026-06-01","derivative":false,"filed":"2026-06-03","following_shares":"1702859.0","form":"4","owners":["Hazelip William"],"plan_10b5_1":false,"price":"0.0","security":"Common Stock","shares":"726401.0"},{"accession":"0001493152-26-027094","acquired_disposed":"D","code":"S","date":"2026-06-01","derivative":false,"filed":"2026-06-03","following_shares":"26489.0","form":"4","owners":["Bottomley John"],"plan_10b5_1":false,"price":"10.0","security":"9.0% Series A Cumulative Perpetual Preferred Stock","shares":"1000.0"},{"accession":"0001493152-26-027094","acquired_disposed":"A","code":"A","date":"2026-06-01","derivative":false,"filed":"2026-06-03","following_shares":"1703559.0","form":"4","owners":["Bottomley John"],"plan_10b5_1":false,"price":"0.0","security":"Common Stock","shares":"726401.0"},{"accession":"0001493152-26-027093","acquired_disposed":"A","code":"A","date":"2026-06-01","derivative":false,"filed":"2026-06-03","following_shares":"1521598.0","form":"4","owners":["Thomas Jessica L."],"plan_10b5_1":false,"price":"0.0","security":"Common Stock","shares":"726401.0"},{"accession":"0001493152-26-027090","acquired_disposed":"A","code":"A","date":"2026-06-01","derivative":false,"filed":"2026-06-03","following_shares":"1703803.0","form":"4","owners":["Lipman Matthew E."],"plan_10b5_1":false,"price":"0.0","security":"Common Stock","shares":"726401.0"},{"accession":"0001493152-26-027086","acquired_disposed":"A","code":"A","date":"2026-06-01","derivative":false,"filed":"2026-06-03","following_shares":"1702719.0","form":"4","owners":["Hirshfield Edward R"],"plan_10b5_1":false,"price":"0.0","security":"Common Stock","shares":"726401.0"},{"accession":"0001493152-26-027082","acquired_disposed":"D","code":"F","date":"2026-06-01","derivative":false,"filed":"2026-06-03","following_shares":"7013105.0","form":"4","owners":["Belizaire John"],"plan_10b5_1":false,"price":"1.67","security":"Common Stock","shares":"58984.0"},{"accession":"0001493152-26-027082","acquired_disposed":"A","code":"A","date":"2026-06-01","derivative":false,"filed":"2026-06-03","following_shares":"7072089.0","form":"4","owners":["Belizaire John"],"plan_10b5_1":false,"price":"0.0","security":"Common Stock","shares":"3018802.0"},{"accession":"0001493152-26-027079","acquired_disposed":"A","code":"A","date":"2026-06-01","derivative":false,"filed":"2026-06-03","following_shares":"1703675.0","form":"4","owners":["OReilly Mary Jennifer"],"plan_10b5_1":false,"price":"0.0","security":"Common Stock","shares":"726401.0"},{"accession":"0001493152-26-027077","acquired_disposed":"A","code":"A","date":"2026-06-01","derivative":false,"filed":"2026-06-03","following_shares":"1998596.0","form":"4","owners":["Marusak Thomas J"],"plan_10b5_1":false,"price":"0.0","security":"Common Stock","shares":"849556.0"},{"accession":"0001493152-26-027076","acquired_disposed":"A","code":"A","date":"2026-06-01","derivative":false,"filed":"2026-06-03","following_shares":"2029343.0","form":"4","owners":["MICHAELS DAVID C"],"plan_10b5_1":false,"price":"0.0","security":"Common Stock","shares":"849556.0"},{"accession":"0001493152-26-027075","acquired_disposed":"A","code":"A","date":"2026-06-01","derivative":false,"filed":"2026-06-03","following_shares":"2292022.0","form":"4","owners":["Phelan William P"],"plan_10b5_1":false,"price":"0.0","security":"Common Stock","shares":"973307.0"},{"accession":"0001493152-26-026628","acquired_disposed":"D","code":"S","date":"2026-06-01","derivative":false,"filed":"2026-06-01","following_shares":"99042.0","form":"4","owners":["Belizaire John"],"plan_10b5_1":true,"price":"10.4","security":"9.0% Series A Cumulative Perpetual Preferred Stock","shares":"1000.0"},{"accession":"0001493152-26-025035","acquired_disposed":"A","code":"P","date":"2026-05-21","derivative":false,"filed":"2026-05-22","following_shares":"1381250.0","form":"4","owners":["PICCHI MICHAEL"],"plan_10b5_1":false,"price":"1.63","security":"Common Stock","shares":"100000.0"},{"accession":"0001493152-26-015712","acquired_disposed":"D","code":"S","date":"2026-04-06","derivative":false,"filed":"2026-04-08","following_shares":"100042.0","form":"4","owners":["Belizaire John"],"plan_10b5_1":true,"price":"7.25","security":"9.0% Series A Cumulative Perpetual Preferred Stock","shares":"1000.0"}],"legal_name":null,"lei":null,"lei_status":null,"lei_updated_at":null,"names":[],"parent_exceptions":[],"parents":[],"wikidata_id":null},"research_built_at":"2026-10-07T06:18:56.800495+00:00","reviewed_events":[],"reviewed_events_coverage":"selective; not a complete event history; accounting series not reconciled","sources":[{"coverage":"8016 issuers; up to 32 recent company reports and 8 ownership-change filings per issuer","id":"sec","license":"SEC public-information reuse","license_url":"https://www.sec.gov/about/privacy-information","name":"SEC submissions","retrieved_at":"2026-10-07T06:19:36.772811+00:00","status":"ok","url":"https://www.sec.gov/search-filings/edgar-application-programming-interfaces"},{"coverage":"1614 unambiguous CIK-linked entities; coverage is incomplete","id":"wikidata","license":"CC0-1.0","license_url":"https://www.wikidata.org/wiki/Wikidata:Licensing","name":"Wikidata structured data","retrieved_at":"2026-10-07T06:20:28.817201+00:00","status":"ok","url":"https://www.wikidata.org/"},{"coverage":"1179 checked identities; 0 unavailable records","id":"gleif","license":"CC0-1.0","license_url":"https://www.gleif.org/en/meta/lei-data-terms-of-use","name":"GLEIF legal entity reference data","retrieved_at":"2026-10-07T06:22:12.930354+00:00","status":"ok","url":"https://www.gleif.org/en/lei-data/gleif-api"},{"coverage":"4 selected series; gaps remain missing","id":"fed","license":"Public domain (selected government series)","license_url":"https://www.federalreserve.gov/disclaimer.htm","name":"Federal Reserve Board H.15","retrieved_at":"2026-10-07T06:36:19.063631+00:00","status":"ok","url":"https://www.federalreserve.gov/releases/h15/"},{"coverage":"9 selected series; gaps remain missing","id":"bls","license":"Public domain","license_url":"https://www.bls.gov/opub/copyright-information.htm","name":"Bureau of Labor Statistics","retrieved_at":"2026-10-07T06:36:21.042364+00:00","status":"ok","url":"https://www.bls.gov/developers/"},{"coverage":"2026 Q2: filings in this completed quarter; not a live transaction feed","id":"insiders","license":"SEC public-information reuse","license_url":"https://www.sec.gov/about/privacy-information","name":"SEC insider transactions","retrieved_at":"2026-10-07T06:20:19.352924+00:00","status":"ok","url":"https://www.sec.gov/data-research/sec-markets-data/insider-transactions-data-sets"}]}