{"transactions":[{"id":4632886,"issuer":{"id":5704,"kind":"organization","name":"PERMA FIX ENVIRONMENTAL SERVICES INC"},"owners":[{"id":29067,"kind":"person","name":"Wamp Zach Paul","position":1,"cik":"0001729607","reported_name":"Wamp Zach Paul","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-10-02T16:00:10.000Z","date":"2026-10-01","kind":"grant","planned":false,"acquired":true,"shares":775,"price":11.7375,"value":9096.5625,"ownership":{"direct":true},"balance_after":54248,"source":{"system":"sec-edgar","filing":"0001493152-26-045436","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/891532/000149315226045436/ownership.xml","form_type":"4"}},{"id":4632888,"issuer":{"id":5704,"kind":"organization","name":"PERMA FIX ENVIRONMENTAL SERVICES INC"},"owners":[{"id":28859,"kind":"person","name":"REEDER JOE","position":1,"cik":"0001256444","reported_name":"REEDER JOE","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-10-02T16:00:08.000Z","date":"2026-10-01","kind":"grant","planned":false,"acquired":true,"shares":1289,"price":11.7375,"value":15129.6375,"ownership":{"direct":true},"balance_after":240634,"source":{"system":"sec-edgar","filing":"0001493152-26-045434","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/891532/000149315226045434/ownership.xml","form_type":"4"}},{"id":4632889,"issuer":{"id":5704,"kind":"organization","name":"PERMA FIX ENVIRONMENTAL SERVICES INC"},"owners":[{"id":29066,"kind":"person","name":"Shelton Larry","position":1,"cik":"0001370728","reported_name":"Shelton Larry","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-10-02T16:00:07.000Z","date":"2026-10-01","kind":"grant","planned":false,"acquired":true,"shares":1246,"price":11.7375,"value":14624.925,"ownership":{"direct":true},"balance_after":200229,"source":{"system":"sec-edgar","filing":"0001493152-26-045435","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/891532/000149315226045435/ownership.xml","form_type":"4"}},{"id":4632887,"issuer":{"id":5704,"kind":"organization","name":"PERMA FIX ENVIRONMENTAL SERVICES INC"},"owners":[{"id":29063,"kind":"person","name":"Grumski Joseph Timothy","position":1,"cik":"0001802624","reported_name":"Grumski Joseph Timothy","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-10-02T16:00:05.000Z","date":"2026-10-01","kind":"grant","planned":false,"acquired":true,"shares":1438,"price":11.7375,"value":16878.525,"ownership":{"direct":true},"balance_after":69099,"source":{"system":"sec-edgar","filing":"0001493152-26-045433","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/891532/000149315226045433/ownership.xml","form_type":"4"}},{"id":4632890,"issuer":{"id":5704,"kind":"organization","name":"PERMA FIX ENVIRONMENTAL SERVICES INC"},"owners":[{"id":29064,"kind":"person","name":"Bostick Thomas","position":1,"cik":"0001724193","reported_name":"Bostick Thomas","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-10-02T16:00:04.000Z","date":"2026-10-01","kind":"grant","planned":false,"acquired":true,"shares":1108,"price":11.7375,"value":13005.15,"ownership":{"direct":true},"balance_after":51718,"source":{"system":"sec-edgar","filing":"0001493152-26-045432","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/891532/000149315226045432/ownership.xml","form_type":"4"}},{"id":4632891,"issuer":{"id":5704,"kind":"organization","name":"PERMA FIX ENVIRONMENTAL SERVICES INC"},"owners":[{"id":29062,"kind":"person","name":"Duggan Kerry C","position":1,"cik":"0001861456","reported_name":"Duggan Kerry C","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-10-02T16:00:03.000Z","date":"2026-10-01","kind":"grant","planned":false,"acquired":true,"shares":748,"price":11.7375,"value":8779.65,"ownership":{"direct":true},"balance_after":8388,"source":{"system":"sec-edgar","filing":"0001493152-26-045437","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/891532/000149315226045437/ownership.xml","form_type":"4"}},{"id":4632892,"issuer":{"id":5704,"kind":"organization","name":"PERMA FIX ENVIRONMENTAL SERVICES INC"},"owners":[{"id":29065,"kind":"person","name":"ZWECKER MARK A","position":1,"cik":"0001256439","reported_name":"ZWECKER MARK A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-10-02T16:00:02.000Z","date":"2026-10-01","kind":"grant","planned":false,"acquired":true,"shares":1038,"price":11.7375,"value":12183.525,"ownership":{"direct":true},"balance_after":248644,"source":{"system":"sec-edgar","filing":"0001493152-26-045431","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/891532/000149315226045431/ownership.xml","form_type":"4"}},{"id":703683,"issuer":{"id":5704,"kind":"organization","name":"PERMA FIX ENVIRONMENTAL SERVICES INC"},"owners":[{"id":28859,"kind":"person","name":"REEDER JOE","position":1,"cik":"0001256444","reported_name":"REEDER JOE","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Stock Option (Right to Buy)","published_at":"2026-07-24T15:05:29.000Z","date":"2026-07-22","kind":"grant","planned":false,"acquired":true,"shares":10000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Non-Qualified Stock Option granted 07/22/2026 under the Company's 2003 Outside Directors Stock Plan. The option vests in four equal annual installmens of 25% each, beginning on the first anniversary of the grant date and on each successive anniversary thereafter."}],"balance_after":10000,"derivative":{"exercise_price":16.64,"expiration_date":"2036-07-22","underlying":"Common Stock","underlying_shares":10000},"source":{"system":"sec-edgar","filing":"0001493152-26-034495","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/891532/000149315226034495/ownership.xml","form_type":"4"}},{"id":704280,"issuer":{"id":5704,"kind":"organization","name":"PERMA FIX ENVIRONMENTAL SERVICES INC"},"owners":[{"id":29067,"kind":"person","name":"Wamp Zach Paul","position":1,"cik":"0001729607","reported_name":"Wamp Zach Paul","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Stock Option (Right to Buy)","published_at":"2026-07-23T11:00:23.000Z","date":"2026-07-22","kind":"grant","planned":false,"acquired":true,"shares":10000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Non-Qualified Stock Option granted 07/22/2026 under the Company's 2003 Outside Directors Stock Plan. The option vests in four equal annual installmens of 25% each, beginning on the first anniversary of the grant date and on each successive anniversary thereafter."}],"balance_after":10000,"derivative":{"exercise_price":16.64,"expiration_date":"2036-07-22","underlying":"Common Stock","underlying_shares":10000},"source":{"system":"sec-edgar","filing":"0001493152-26-034315","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/891532/000149315226034315/ownership.xml","form_type":"4"}},{"id":704279,"issuer":{"id":5704,"kind":"organization","name":"PERMA FIX ENVIRONMENTAL SERVICES INC"},"owners":[{"id":29066,"kind":"person","name":"Shelton Larry","position":1,"cik":"0001370728","reported_name":"Shelton Larry","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Stock Option (Right to Buy)","published_at":"2026-07-23T11:00:22.000Z","date":"2026-07-22","kind":"grant","planned":false,"acquired":true,"shares":10000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Non-Qualified Stock Option granted 07/22/2026 under the Company's 2003 Outside Directors Stock Plan. The option vests in four equal annual installmens of 25% each, beginning on the first anniversary of the grant date and on each successive anniversary thereafter."}],"balance_after":10000,"derivative":{"exercise_price":16.64,"expiration_date":"2036-07-22","underlying":"Common Stock","underlying_shares":10000},"source":{"system":"sec-edgar","filing":"0001493152-26-034313","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/891532/000149315226034313/ownership.xml","form_type":"4"}},{"id":704278,"issuer":{"id":5704,"kind":"organization","name":"PERMA FIX ENVIRONMENTAL SERVICES INC"},"owners":[{"id":29065,"kind":"person","name":"ZWECKER MARK A","position":1,"cik":"0001256439","reported_name":"ZWECKER MARK A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Stock Option (Right to Buy)","published_at":"2026-07-23T11:00:20.000Z","date":"2026-07-22","kind":"grant","planned":false,"acquired":true,"shares":10000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Non-Qualified Stock Option granted 07/22/2026 under the Company's 2003 Outside Directors Stock Plan. The option vests in four equal annual installmens of 25% each, beginning on the first anniversary of the grant date and on each successive anniversary thereafter."}],"balance_after":10000,"derivative":{"exercise_price":16.64,"expiration_date":"2036-07-22","underlying":"Common Stock","underlying_shares":10000},"source":{"system":"sec-edgar","filing":"0001493152-26-034314","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/891532/000149315226034314/ownership.xml","form_type":"4"}},{"id":704277,"issuer":{"id":5704,"kind":"organization","name":"PERMA FIX ENVIRONMENTAL SERVICES INC"},"owners":[{"id":29064,"kind":"person","name":"Bostick Thomas","position":1,"cik":"0001724193","reported_name":"Bostick Thomas","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Stock Option (Right to Buy)","published_at":"2026-07-23T11:00:19.000Z","date":"2026-07-22","kind":"grant","planned":false,"acquired":true,"shares":10000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Non-Qualified Stock Option granted 07/22/2026 under the Company's 2003 Outside Directors Stock Plan. The option vests in four equal annual installmens of 25% each, beginning on the first anniversary of the grant date and on each successive anniversary thereafter."}],"balance_after":10000,"derivative":{"exercise_price":16.64,"expiration_date":"2036-07-22","underlying":"Common Stock","underlying_shares":10000},"source":{"system":"sec-edgar","filing":"0001493152-26-034312","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/891532/000149315226034312/ownership.xml","form_type":"4"}},{"id":704276,"issuer":{"id":5704,"kind":"organization","name":"PERMA FIX ENVIRONMENTAL SERVICES INC"},"owners":[{"id":29063,"kind":"person","name":"Grumski Joseph Timothy","position":1,"cik":"0001802624","reported_name":"Grumski Joseph Timothy","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Stock Option (Right to Buy)","published_at":"2026-07-23T11:00:18.000Z","date":"2026-07-22","kind":"grant","planned":false,"acquired":true,"shares":10000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Non-Qualified Stock Option granted 07/22/2026 under the Company's 2003 Outside Directors Stock Plan. The option vests in four equal annual installmens of 25% each, beginning on the first anniversary of the grant date and on each successive anniversary thereafter."}],"balance_after":10000,"derivative":{"exercise_price":16.64,"expiration_date":"2036-07-22","underlying":"Common Stock","underlying_shares":10000},"source":{"system":"sec-edgar","filing":"0001493152-26-034310","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/891532/000149315226034310/ownership.xml","form_type":"4"}},{"id":704275,"issuer":{"id":5704,"kind":"organization","name":"PERMA FIX ENVIRONMENTAL SERVICES INC"},"owners":[{"id":29062,"kind":"person","name":"Duggan Kerry C","position":1,"cik":"0001861456","reported_name":"Duggan Kerry C","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Stock Option (Right to Buy)","published_at":"2026-07-23T11:00:17.000Z","date":"2026-07-22","kind":"grant","planned":false,"acquired":true,"shares":10000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Non-Qualified Stock Option granted 07/22/2026 under the Company's 2003 Outside Directors Stock Plan. The option vests in four equal annual installmens of 25% each, beginning on the first anniversary of the grant date and on each successive anniversary thereafter."}],"balance_after":10000,"derivative":{"exercise_price":16.64,"expiration_date":"2036-07-22","underlying":"Common Stock","underlying_shares":10000},"source":{"system":"sec-edgar","filing":"0001493152-26-034309","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/891532/000149315226034309/ownership.xml","form_type":"4"}},{"id":710131,"issuer":{"id":5704,"kind":"organization","name":"PERMA FIX ENVIRONMENTAL SERVICES INC"},"owners":[{"id":29066,"kind":"person","name":"Shelton Larry","position":1,"cik":"0001370728","reported_name":"Shelton Larry","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Stock Option (Right to Buy)","published_at":"2026-07-14T11:00:10.000Z","date":"2026-07-13","kind":"exercise","planned":false,"acquired":false,"shares":2400,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Non-Qualified Stock Option granted 07/28/2016 under the Company's Outside Directors Stock Plan. The option vests fully six months from grant date."}],"balance_after":0,"derivative":{"exercise_price":4.6,"expiration_date":"2026-07-28","underlying":"Common Stock","underlying_shares":2400},"source":{"system":"sec-edgar","filing":"0001493152-26-033108","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/891532/000149315226033108/ownership.xml","form_type":"4"}},{"id":710130,"issuer":{"id":5704,"kind":"organization","name":"PERMA FIX ENVIRONMENTAL SERVICES INC"},"owners":[{"id":29066,"kind":"person","name":"Shelton Larry","position":1,"cik":"0001370728","reported_name":"Shelton Larry","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-07-14T11:00:10.000Z","date":"2026-07-13","kind":"exercise","planned":false,"acquired":true,"shares":2400,"price":4.6,"value":11040.0,"ownership":{"direct":true},"balance_after":198983,"source":{"system":"sec-edgar","filing":"0001493152-26-033108","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/891532/000149315226033108/ownership.xml","form_type":"4"}},{"id":719706,"issuer":{"id":5704,"kind":"organization","name":"PERMA FIX ENVIRONMENTAL SERVICES INC"},"owners":[{"id":29063,"kind":"person","name":"Grumski Joseph Timothy","position":1,"cik":"0001802624","reported_name":"Grumski Joseph Timothy","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-07-02T12:00:23.000Z","date":"2026-07-01","kind":"grant","planned":false,"acquired":true,"shares":1528,"price":10.7175,"value":16376.34,"ownership":{"direct":true},"balance_after":67661,"source":{"system":"sec-edgar","filing":"0001493152-26-031651","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/891532/000149315226031651/ownership.xml","form_type":"4"}},{"id":719704,"issuer":{"id":5704,"kind":"organization","name":"PERMA FIX ENVIRONMENTAL SERVICES INC"},"owners":[{"id":29065,"kind":"person","name":"ZWECKER MARK A","position":1,"cik":"0001256439","reported_name":"ZWECKER MARK A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-07-02T12:00:21.000Z","date":"2026-07-01","kind":"grant","planned":false,"acquired":true,"shares":1167,"price":10.7175,"value":12507.3225,"ownership":{"direct":true},"balance_after":247606,"source":{"system":"sec-edgar","filing":"0001493152-26-031650","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/891532/000149315226031650/ownership.xml","form_type":"4"}},{"id":719703,"issuer":{"id":5704,"kind":"organization","name":"PERMA FIX ENVIRONMENTAL SERVICES INC"},"owners":[{"id":29064,"kind":"person","name":"Bostick Thomas","position":1,"cik":"0001724193","reported_name":"Bostick Thomas","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-07-02T12:00:20.000Z","date":"2026-07-01","kind":"grant","planned":false,"acquired":true,"shares":1213,"price":10.7175,"value":13000.3275,"ownership":{"direct":true},"balance_after":50610,"source":{"system":"sec-edgar","filing":"0001493152-26-031649","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/891532/000149315226031649/ownership.xml","form_type":"4"}},{"id":719702,"issuer":{"id":5704,"kind":"organization","name":"PERMA FIX ENVIRONMENTAL SERVICES INC"},"owners":[{"id":28859,"kind":"person","name":"REEDER JOE","position":1,"cik":"0001256444","reported_name":"REEDER JOE","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-07-02T12:00:18.000Z","date":"2026-07-01","kind":"grant","planned":false,"acquired":true,"shares":1458,"price":10.7175,"value":15626.115,"ownership":{"direct":true},"balance_after":239345,"source":{"system":"sec-edgar","filing":"0001493152-26-031648","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/891532/000149315226031648/ownership.xml","form_type":"4"}},{"id":719701,"issuer":{"id":5704,"kind":"organization","name":"PERMA FIX ENVIRONMENTAL SERVICES INC"},"owners":[{"id":29067,"kind":"person","name":"Wamp Zach Paul","position":1,"cik":"0001729607","reported_name":"Wamp Zach Paul","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-07-02T12:00:17.000Z","date":"2026-07-01","kind":"grant","planned":false,"acquired":true,"shares":849,"price":10.7175,"value":9099.1575,"ownership":{"direct":true},"balance_after":53473,"source":{"system":"sec-edgar","filing":"0001493152-26-031646","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/891532/000149315226031646/ownership.xml","form_type":"4"}},{"id":719700,"issuer":{"id":5704,"kind":"organization","name":"PERMA FIX ENVIRONMENTAL SERVICES INC"},"owners":[{"id":29066,"kind":"person","name":"Shelton Larry","position":1,"cik":"0001370728","reported_name":"Shelton Larry","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-07-02T12:00:16.000Z","date":"2026-07-01","kind":"grant","planned":false,"acquired":true,"shares":1365,"price":10.7175,"value":14629.3875,"ownership":{"direct":true},"balance_after":196583,"source":{"system":"sec-edgar","filing":"0001493152-26-031645","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/891532/000149315226031645/ownership.xml","form_type":"4"}},{"id":719698,"issuer":{"id":5704,"kind":"organization","name":"PERMA FIX ENVIRONMENTAL SERVICES INC"},"owners":[{"id":29062,"kind":"person","name":"Duggan Kerry C","position":1,"cik":"0001861456","reported_name":"Duggan Kerry C","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-07-02T12:00:16.000Z","date":"2026-07-01","kind":"grant","planned":false,"acquired":true,"shares":819,"price":10.7175,"value":8777.6325,"ownership":{"direct":true},"balance_after":7640,"source":{"system":"sec-edgar","filing":"0001493152-26-031644","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/891532/000149315226031644/ownership.xml","form_type":"4"}},{"id":821474,"issuer":{"id":5704,"kind":"organization","name":"PERMA FIX ENVIRONMENTAL SERVICES INC"},"owners":[{"id":29065,"kind":"person","name":"ZWECKER MARK A","position":1,"cik":"0001256439","reported_name":"ZWECKER MARK A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-04-02T19:05:00.000Z","date":"2026-04-01","kind":"grant","planned":false,"acquired":true,"shares":1520,"price":8.0175,"value":12186.6,"ownership":{"direct":true},"balance_after":244039,"source":{"system":"sec-edgar","filing":"0001493152-26-014876","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/891532/000149315226014876/ownership.xml","form_type":"4"}},{"id":821475,"issuer":{"id":5704,"kind":"organization","name":"PERMA FIX ENVIRONMENTAL SERVICES INC"},"owners":[{"id":28859,"kind":"person","name":"REEDER JOE","position":1,"cik":"0001256444","reported_name":"REEDER JOE","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-04-02T14:14:13.000Z","date":"2026-04-01","kind":"grant","planned":false,"acquired":true,"shares":1886,"price":8.0175,"value":15121.005,"ownership":{"direct":true},"balance_after":237887,"source":{"system":"sec-edgar","filing":"0001493152-26-014838","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/891532/000149315226014838/ownership.xml","form_type":"4"}},{"id":821473,"issuer":{"id":5704,"kind":"organization","name":"PERMA FIX ENVIRONMENTAL SERVICES INC"},"owners":[{"id":29062,"kind":"person","name":"Duggan Kerry C","position":1,"cik":"0001861456","reported_name":"Duggan Kerry C","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-04-02T13:00:32.000Z","date":"2026-04-01","kind":"grant","planned":false,"acquired":true,"shares":1054,"price":8.0175,"value":8450.445,"ownership":{"direct":true},"balance_after":6821,"source":{"system":"sec-edgar","filing":"0001493152-26-014829","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/891532/000149315226014829/ownership.xml","form_type":"4"}},{"id":821472,"issuer":{"id":5704,"kind":"organization","name":"PERMA FIX ENVIRONMENTAL SERVICES INC"},"owners":[{"id":29063,"kind":"person","name":"Grumski Joseph Timothy","position":1,"cik":"0001802624","reported_name":"Grumski Joseph Timothy","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-04-02T13:00:30.000Z","date":"2026-04-01","kind":"grant","planned":false,"acquired":true,"shares":2105,"price":8.0175,"value":16876.8375,"ownership":{"direct":true},"balance_after":66133,"source":{"system":"sec-edgar","filing":"0001493152-26-014828","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/891532/000149315226014828/ownership.xml","form_type":"4"}},{"id":821471,"issuer":{"id":5704,"kind":"organization","name":"PERMA FIX ENVIRONMENTAL SERVICES INC"},"owners":[{"id":29064,"kind":"person","name":"Bostick Thomas","position":1,"cik":"0001724193","reported_name":"Bostick Thomas","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-04-02T13:00:29.000Z","date":"2026-04-01","kind":"grant","planned":false,"acquired":true,"shares":1559,"price":8.0175,"value":12499.2825,"ownership":{"direct":true},"balance_after":49397,"source":{"system":"sec-edgar","filing":"0001493152-26-014827","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/891532/000149315226014827/ownership.xml","form_type":"4"}},{"id":821470,"issuer":{"id":5704,"kind":"organization","name":"PERMA FIX ENVIRONMENTAL SERVICES INC"},"owners":[{"id":29067,"kind":"person","name":"Wamp Zach Paul","position":1,"cik":"0001729607","reported_name":"Wamp Zach Paul","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-04-02T13:00:27.000Z","date":"2026-04-01","kind":"grant","planned":false,"acquired":true,"shares":1094,"price":8.0175,"value":8771.145,"ownership":{"direct":true},"balance_after":52624,"source":{"system":"sec-edgar","filing":"0001493152-26-014826","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/891532/000149315226014826/ownership.xml","form_type":"4"}},{"id":821468,"issuer":{"id":5704,"kind":"organization","name":"PERMA FIX ENVIRONMENTAL SERVICES INC"},"owners":[{"id":29066,"kind":"person","name":"Shelton Larry","position":1,"cik":"0001370728","reported_name":"Shelton Larry","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-04-02T13:00:24.000Z","date":"2026-04-01","kind":"grant","planned":false,"acquired":true,"shares":1824,"price":8.0175,"value":14623.92,"ownership":{"direct":true},"balance_after":195218,"source":{"system":"sec-edgar","filing":"0001493152-26-014825","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/891532/000149315226014825/ownership.xml","form_type":"4"}},{"id":913075,"issuer":{"id":5704,"kind":"organization","name":"PERMA FIX ENVIRONMENTAL SERVICES INC"},"owners":[{"id":67106,"kind":"person","name":"CENTOFANTI LOUIS F","position":1,"cik":"0000926738","reported_name":"CENTOFANTI LOUIS F","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP of Strategic Initiatives"}}],"security":"Common Stock","published_at":"2026-02-10T19:46:50.000Z","date":"2025-11-17","kind":"gift","planned":false,"acquired":false,"shares":600,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Bona fide gift to non-profit organization unaffiliated with either the Reporting Person or the Issuer."}],"balance_after":217565,"source":{"system":"sec-edgar","filing":"0001493152-26-005952","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/891532/000149315226005952/ownership.xml","form_type":"4"}},{"id":913074,"issuer":{"id":5704,"kind":"organization","name":"PERMA FIX ENVIRONMENTAL SERVICES INC"},"owners":[{"id":67106,"kind":"person","name":"CENTOFANTI LOUIS F","position":1,"cik":"0000926738","reported_name":"CENTOFANTI LOUIS F","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP of Strategic Initiatives"}}],"security":"Common Stock","published_at":"2026-02-10T19:46:50.000Z","date":"2025-11-17","kind":"gift","planned":false,"acquired":false,"shares":600,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Bona fide gift to non-profit organization unaffiliated with either the Reporting Person or the Issuer."}],"balance_after":218165,"source":{"system":"sec-edgar","filing":"0001493152-26-005952","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/891532/000149315226005952/ownership.xml","form_type":"4"}},{"id":934750,"issuer":{"id":5704,"kind":"organization","name":"PERMA FIX ENVIRONMENTAL SERVICES INC"},"owners":[{"id":69105,"kind":"person","name":"Grondin Richard","position":1,"cik":"0001819004","reported_name":"Grondin Richard","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP of Hanford & Int. Waste Op"}}],"security":"Stock Option","published_at":"2026-01-21T09:26:00.000Z","date":"2026-01-20","kind":"exercise","planned":false,"acquired":false,"shares":6000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"January 20, 2026,, the Reporting Person exercised the incentive stock option granted 1/19/2023 under the Company's 2017 Stock Option Plan (the \"2017 Plan\") for the purchase of 6,000 shares of the Company's Common Stock at an exercise price of $3.95 per share (the \"Option shares\"). As permitted by the 2017 Plan, the Reporting Person elected to pay the exercise price of the Option Shares by having the Company withhold from the Option Shares a number of shares having a fair market value equal to the aggregate exercise price of $23,700. Since the fair market value of the Company's Common Stock on January 20, 2026, (as determined in accordance with the 2017 Plan) was $13.71 per share, the Company withheld 1,729 shares of Common Stock ($23,700 divided by $13.71) to pay the aggregate exercise price of the option."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"Incentive stock option granted 01/19/2023 under the Company's 2017 Stock Option Plan for the purchase of up to 30,000 shares of the Company's Common Stock.The option is for a 6 year period and vests over a 5 year period, at 1/5 increment per year."}],"balance_after":12000,"derivative":{"exercise_price":3.95,"expiration_date":"2029-01-19","underlying":"Common Stock","underlying_shares":6000},"source":{"system":"sec-edgar","filing":"0001493152-26-003012","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1819004/000149315226003012/ownership.xml","form_type":"4"}},{"id":934749,"issuer":{"id":5704,"kind":"organization","name":"PERMA FIX ENVIRONMENTAL SERVICES INC"},"owners":[{"id":69105,"kind":"person","name":"Grondin Richard","position":1,"cik":"0001819004","reported_name":"Grondin Richard","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP of Hanford & Int. Waste Op"}}],"security":"Stock Option","published_at":"2026-01-21T09:26:00.000Z","date":"2026-01-20","kind":"exercise","planned":false,"acquired":false,"shares":5000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"On January 20, 2026, the Reporting Person exercised the incentive stock option granted 10/14/2021 under the Company's 2017 Stock Option Plan (the \"2017 Plan\") for the purchase of 5,000 shares of the Company's Common Stock at an exercise price of $7.005 per share (the \"Option shares\"). As permitted by the 2017 Plan, the Reporting Person elected to pay the exercise price of the Option Shares by having the Company withhold from the Option Shares a number of shares having a fair market value equal to the aggregate exercise price of $35,025. Since the fair market value of the Company's Common Stock on January 20, 2026, (as determined in accordance with the 2017 Plan) was $13.71 per share, the Company withheld 2,555 shares of Common Stock ($35,025 divided by $13.71) to pay the aggregate exercise price of the option."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"Incentive stock option granted 10/14/2021 under the Company's 2017 Stock Option Plan for the purchase of up to 25,000 shares of the Company's Common Stock. The option is for a 6 year period and vests over a 5 year period, at 1/5 increment per year."}],"balance_after":5000,"derivative":{"exercise_price":7.005,"expiration_date":"2027-10-14","underlying":"Common Stock","underlying_shares":5000},"source":{"system":"sec-edgar","filing":"0001493152-26-003012","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1819004/000149315226003012/ownership.xml","form_type":"4"}},{"id":934748,"issuer":{"id":5704,"kind":"organization","name":"PERMA FIX ENVIRONMENTAL SERVICES INC"},"owners":[{"id":69105,"kind":"person","name":"Grondin Richard","position":1,"cik":"0001819004","reported_name":"Grondin Richard","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP of Hanford & Int. Waste Op"}}],"security":"Common Stock","published_at":"2026-01-21T09:26:00.000Z","date":"2026-01-20","kind":"tax_withholding","planned":false,"acquired":false,"shares":1729,"price":13.71,"value":23704.59,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"January 20, 2026,, the Reporting Person exercised the incentive stock option granted 1/19/2023 under the Company's 2017 Stock Option Plan (the \"2017 Plan\") for the purchase of 6,000 shares of the Company's Common Stock at an exercise price of $3.95 per share (the \"Option shares\"). As permitted by the 2017 Plan, the Reporting Person elected to pay the exercise price of the Option Shares by having the Company withhold from the Option Shares a number of shares having a fair market value equal to the aggregate exercise price of $23,700. Since the fair market value of the Company's Common Stock on January 20, 2026, (as determined in accordance with the 2017 Plan) was $13.71 per share, the Company withheld 1,729 shares of Common Stock ($23,700 divided by $13.71) to pay the aggregate exercise price of the option."}],"balance_after":41308,"source":{"system":"sec-edgar","filing":"0001493152-26-003012","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1819004/000149315226003012/ownership.xml","form_type":"4"}},{"id":934747,"issuer":{"id":5704,"kind":"organization","name":"PERMA FIX ENVIRONMENTAL SERVICES INC"},"owners":[{"id":69105,"kind":"person","name":"Grondin Richard","position":1,"cik":"0001819004","reported_name":"Grondin Richard","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP of Hanford & Int. Waste Op"}}],"security":"Common Stock","published_at":"2026-01-21T09:26:00.000Z","date":"2026-01-20","kind":"exercise","planned":false,"acquired":true,"shares":6000,"price":3.95,"value":23700.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"January 20, 2026,, the Reporting Person exercised the incentive stock option granted 1/19/2023 under the Company's 2017 Stock Option Plan (the \"2017 Plan\") for the purchase of 6,000 shares of the Company's Common Stock at an exercise price of $3.95 per share (the \"Option shares\"). As permitted by the 2017 Plan, the Reporting Person elected to pay the exercise price of the Option Shares by having the Company withhold from the Option Shares a number of shares having a fair market value equal to the aggregate exercise price of $23,700. Since the fair market value of the Company's Common Stock on January 20, 2026, (as determined in accordance with the 2017 Plan) was $13.71 per share, the Company withheld 1,729 shares of Common Stock ($23,700 divided by $13.71) to pay the aggregate exercise price of the option."}],"balance_after":43037,"source":{"system":"sec-edgar","filing":"0001493152-26-003012","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1819004/000149315226003012/ownership.xml","form_type":"4"}},{"id":934746,"issuer":{"id":5704,"kind":"organization","name":"PERMA FIX ENVIRONMENTAL SERVICES INC"},"owners":[{"id":69105,"kind":"person","name":"Grondin Richard","position":1,"cik":"0001819004","reported_name":"Grondin Richard","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP of Hanford & Int. Waste Op"}}],"security":"Common Stock","published_at":"2026-01-21T09:26:00.000Z","date":"2026-01-20","kind":"tax_withholding","planned":false,"acquired":false,"shares":2555,"price":13.71,"value":35029.05,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"On January 20, 2026, the Reporting Person exercised the incentive stock option granted 10/14/2021 under the Company's 2017 Stock Option Plan (the \"2017 Plan\") for the purchase of 5,000 shares of the Company's Common Stock at an exercise price of $7.005 per share (the \"Option shares\"). As permitted by the 2017 Plan, the Reporting Person elected to pay the exercise price of the Option Shares by having the Company withhold from the Option Shares a number of shares having a fair market value equal to the aggregate exercise price of $35,025. Since the fair market value of the Company's Common Stock on January 20, 2026, (as determined in accordance with the 2017 Plan) was $13.71 per share, the Company withheld 2,555 shares of Common Stock ($35,025 divided by $13.71) to pay the aggregate exercise price of the option."}],"balance_after":37037,"source":{"system":"sec-edgar","filing":"0001493152-26-003012","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1819004/000149315226003012/ownership.xml","form_type":"4"}},{"id":934745,"issuer":{"id":5704,"kind":"organization","name":"PERMA FIX ENVIRONMENTAL SERVICES INC"},"owners":[{"id":69105,"kind":"person","name":"Grondin Richard","position":1,"cik":"0001819004","reported_name":"Grondin Richard","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP of Hanford & Int. Waste Op"}}],"security":"Common Stock","published_at":"2026-01-21T09:26:00.000Z","date":"2026-01-20","kind":"exercise","planned":false,"acquired":true,"shares":5000,"price":7.005,"value":35025.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"On January 20, 2026, the Reporting Person exercised the incentive stock option granted 10/14/2021 under the Company's 2017 Stock Option Plan (the \"2017 Plan\") for the purchase of 5,000 shares of the Company's Common Stock at an exercise price of $7.005 per share (the \"Option shares\"). As permitted by the 2017 Plan, the Reporting Person elected to pay the exercise price of the Option Shares by having the Company withhold from the Option Shares a number of shares having a fair market value equal to the aggregate exercise price of $35,025. Since the fair market value of the Company's Common Stock on January 20, 2026, (as determined in accordance with the 2017 Plan) was $13.71 per share, the Company withheld 2,555 shares of Common Stock ($35,025 divided by $13.71) to pay the aggregate exercise price of the option."}],"balance_after":39592,"source":{"system":"sec-edgar","filing":"0001493152-26-003012","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1819004/000149315226003012/ownership.xml","form_type":"4"}},{"id":948584,"issuer":{"id":5704,"kind":"organization","name":"PERMA FIX ENVIRONMENTAL SERVICES INC"},"owners":[{"id":28859,"kind":"person","name":"REEDER JOE","position":1,"cik":"0001256444","reported_name":"REEDER JOE","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-01-06T18:17:27.000Z","date":"2026-01-02","kind":"grant","planned":false,"acquired":true,"shares":1549,"price":9.4425,"value":14626.4325,"ownership":{"direct":true},"balance_after":236001,"source":{"system":"sec-edgar","filing":"0001493152-26-000555","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/891532/000149315226000555/ownership.xml","form_type":"4"}},{"id":953619,"issuer":{"id":5704,"kind":"organization","name":"PERMA FIX ENVIRONMENTAL SERVICES INC"},"owners":[{"id":29064,"kind":"person","name":"Bostick Thomas","position":1,"cik":"0001724193","reported_name":"Bostick Thomas","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-01-05T19:22:47.000Z","date":"2026-01-02","kind":"grant","planned":false,"acquired":true,"shares":1324,"price":9.4425,"value":12501.87,"ownership":{"direct":true},"balance_after":47838,"source":{"system":"sec-edgar","filing":"0001493152-26-000332","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/891532/000149315226000332/ownership.xml","form_type":"4"}},{"id":953618,"issuer":{"id":5704,"kind":"organization","name":"PERMA FIX ENVIRONMENTAL SERVICES INC"},"owners":[{"id":29067,"kind":"person","name":"Wamp Zach Paul","position":1,"cik":"0001729607","reported_name":"Wamp Zach Paul","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-01-05T18:04:44.000Z","date":"2026-01-02","kind":"grant","planned":false,"acquired":true,"shares":964,"price":9.4425,"value":9102.57,"ownership":{"direct":true},"balance_after":51530,"source":{"system":"sec-edgar","filing":"0001493152-26-000312","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/891532/000149315226000312/ownership.xml","form_type":"4"}},{"id":953617,"issuer":{"id":5704,"kind":"organization","name":"PERMA FIX ENVIRONMENTAL SERVICES INC"},"owners":[{"id":29063,"kind":"person","name":"Grumski Joseph Timothy","position":1,"cik":"0001802624","reported_name":"Grumski Joseph Timothy","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-01-05T14:29:30.000Z","date":"2026-01-02","kind":"grant","planned":false,"acquired":true,"shares":1840,"price":9.4425,"value":17374.2,"ownership":{"direct":true},"balance_after":64028,"source":{"system":"sec-edgar","filing":"0001493152-26-000294","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/891532/000149315226000294/ownership.xml","form_type":"4"}},{"id":953616,"issuer":{"id":5704,"kind":"organization","name":"PERMA FIX ENVIRONMENTAL SERVICES INC"},"owners":[{"id":29062,"kind":"person","name":"Duggan Kerry C","position":1,"cik":"0001861456","reported_name":"Duggan Kerry C","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-01-05T14:27:55.000Z","date":"2026-01-02","kind":"grant","planned":false,"acquired":true,"shares":929,"price":9.4425,"value":8772.0825,"ownership":{"direct":true},"balance_after":5767,"source":{"system":"sec-edgar","filing":"0001493152-26-000292","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/891532/000149315226000292/ownership.xml","form_type":"4"}},{"id":953615,"issuer":{"id":5704,"kind":"organization","name":"PERMA FIX ENVIRONMENTAL SERVICES INC"},"owners":[{"id":29066,"kind":"person","name":"Shelton Larry","position":1,"cik":"0001370728","reported_name":"Shelton Larry","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-01-05T14:25:01.000Z","date":"2026-01-02","kind":"grant","planned":false,"acquired":true,"shares":1583,"price":9.4425,"value":14947.4775,"ownership":{"direct":true},"balance_after":193394,"source":{"system":"sec-edgar","filing":"0001493152-26-000290","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/891532/000149315226000290/ownership.xml","form_type":"4"}},{"id":953614,"issuer":{"id":5704,"kind":"organization","name":"PERMA FIX ENVIRONMENTAL SERVICES INC"},"owners":[{"id":29065,"kind":"person","name":"ZWECKER MARK A","position":1,"cik":"0001256439","reported_name":"ZWECKER MARK A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-01-05T14:22:47.000Z","date":"2026-01-02","kind":"grant","planned":false,"acquired":true,"shares":1325,"price":9.4425,"value":12511.3125,"ownership":{"direct":true},"balance_after":242519,"source":{"system":"sec-edgar","filing":"0001493152-26-000288","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/891532/000149315226000288/ownership.xml","form_type":"4"}},{"id":968326,"issuer":{"id":5704,"kind":"organization","name":"PERMA FIX ENVIRONMENTAL SERVICES INC"},"owners":[{"id":28859,"kind":"person","name":"REEDER JOE","position":1,"cik":"0001256444","reported_name":"REEDER JOE","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-12-16T16:31:27.000Z","date":"2025-12-15","kind":"gift","planned":false,"acquired":false,"shares":364,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F5","text":"Bona fide gift to non-profit organization unaffiliated with either the Reporting Person or the Issuer."}],"balance_after":234452,"source":{"system":"sec-edgar","filing":"0001493152-25-027925","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/891532/000149315225027925/ownership.xml","form_type":"4"}},{"id":968325,"issuer":{"id":5704,"kind":"organization","name":"PERMA FIX ENVIRONMENTAL SERVICES INC"},"owners":[{"id":28859,"kind":"person","name":"REEDER JOE","position":1,"cik":"0001256444","reported_name":"REEDER JOE","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-12-16T16:31:27.000Z","date":"2025-12-15","kind":"gift","planned":false,"acquired":false,"shares":727,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F4","text":"Bona fide gift to non-profit organization unaffiliated with either the Reporting Person or the Issuer."}],"balance_after":234816,"source":{"system":"sec-edgar","filing":"0001493152-25-027925","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/891532/000149315225027925/ownership.xml","form_type":"4"}},{"id":968324,"issuer":{"id":5704,"kind":"organization","name":"PERMA FIX ENVIRONMENTAL SERVICES INC"},"owners":[{"id":28859,"kind":"person","name":"REEDER JOE","position":1,"cik":"0001256444","reported_name":"REEDER JOE","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-12-16T16:31:27.000Z","date":"2025-12-15","kind":"gift","planned":false,"acquired":false,"shares":727,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F3","text":"Bona fide gift to non-profit organization unaffiliated with either the Reporting Person or the Issuer."}],"balance_after":235543,"source":{"system":"sec-edgar","filing":"0001493152-25-027925","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/891532/000149315225027925/ownership.xml","form_type":"4"}},{"id":968323,"issuer":{"id":5704,"kind":"organization","name":"PERMA FIX ENVIRONMENTAL SERVICES INC"},"owners":[{"id":28859,"kind":"person","name":"REEDER JOE","position":1,"cik":"0001256444","reported_name":"REEDER JOE","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-12-16T16:31:27.000Z","date":"2025-12-15","kind":"gift","planned":false,"acquired":false,"shares":1090,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Bona fide gift to non-profit organization unaffiliated with either the Reporting Person or the Issuer."}],"balance_after":236270,"source":{"system":"sec-edgar","filing":"0001493152-25-027925","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/891532/000149315225027925/ownership.xml","form_type":"4"}},{"id":968322,"issuer":{"id":5704,"kind":"organization","name":"PERMA FIX ENVIRONMENTAL SERVICES INC"},"owners":[{"id":28859,"kind":"person","name":"REEDER JOE","position":1,"cik":"0001256444","reported_name":"REEDER JOE","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-12-16T16:31:27.000Z","date":"2025-12-15","kind":"gift","planned":false,"acquired":false,"shares":11048,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Gift in equal amounts to Reporting Person's four adult children, who are not affiliated with the Issuer. The Reporting Person retains no ownership control."}],"balance_after":237360,"source":{"system":"sec-edgar","filing":"0001493152-25-027925","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/891532/000149315225027925/ownership.xml","form_type":"4"}},{"id":1028440,"issuer":{"id":5704,"kind":"organization","name":"PERMA FIX ENVIRONMENTAL SERVICES INC"},"owners":[{"id":29064,"kind":"person","name":"Bostick Thomas","position":1,"cik":"0001724193","reported_name":"Bostick Thomas","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-10-02T13:51:16.000Z","date":"2025-10-01","kind":"grant","planned":false,"acquired":true,"shares":1716,"price":7.575,"value":12998.7,"ownership":{"direct":true},"balance_after":46514,"source":{"system":"sec-edgar","filing":"0001493152-25-016635","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/891532/000149315225016635/ownership.xml","form_type":"4"}},{"id":1028439,"issuer":{"id":5704,"kind":"organization","name":"PERMA FIX ENVIRONMENTAL SERVICES INC"},"owners":[{"id":29063,"kind":"person","name":"Grumski Joseph Timothy","position":1,"cik":"0001802624","reported_name":"Grumski Joseph Timothy","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-10-02T13:00:21.000Z","date":"2025-10-01","kind":"grant","planned":false,"acquired":true,"shares":2228,"price":7.575,"value":16877.1,"ownership":{"direct":true},"balance_after":62188,"source":{"system":"sec-edgar","filing":"0001493152-25-016621","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/891532/000149315225016621/ownership.xml","form_type":"4"}},{"id":1028438,"issuer":{"id":5704,"kind":"organization","name":"PERMA FIX ENVIRONMENTAL SERVICES INC"},"owners":[{"id":29065,"kind":"person","name":"ZWECKER MARK A","position":1,"cik":"0001256439","reported_name":"ZWECKER MARK A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-10-02T13:00:19.000Z","date":"2025-10-01","kind":"grant","planned":false,"acquired":true,"shares":1609,"price":7.575,"value":12188.175,"ownership":{"direct":true},"balance_after":241194,"source":{"system":"sec-edgar","filing":"0001493152-25-016625","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/891532/000149315225016625/ownership.xml","form_type":"4"}},{"id":1028437,"issuer":{"id":5704,"kind":"organization","name":"PERMA FIX ENVIRONMENTAL SERVICES INC"},"owners":[{"id":29067,"kind":"person","name":"Wamp Zach Paul","position":1,"cik":"0001729607","reported_name":"Wamp Zach Paul","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-10-02T13:00:18.000Z","date":"2025-10-01","kind":"grant","planned":false,"acquired":true,"shares":1201,"price":7.575,"value":9097.575,"ownership":{"direct":true},"balance_after":50566,"source":{"system":"sec-edgar","filing":"0001493152-25-016624","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/891532/000149315225016624/ownership.xml","form_type":"4"}},{"id":1028436,"issuer":{"id":5704,"kind":"organization","name":"PERMA FIX ENVIRONMENTAL SERVICES INC"},"owners":[{"id":29066,"kind":"person","name":"Shelton Larry","position":1,"cik":"0001370728","reported_name":"Shelton Larry","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-10-02T13:00:16.000Z","date":"2025-10-01","kind":"grant","planned":false,"acquired":true,"shares":1931,"price":7.575,"value":14627.325,"ownership":{"direct":true},"balance_after":191811,"source":{"system":"sec-edgar","filing":"0001493152-25-016623","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/891532/000149315225016623/ownership.xml","form_type":"4"}},{"id":1028435,"issuer":{"id":5704,"kind":"organization","name":"PERMA FIX ENVIRONMENTAL SERVICES INC"},"owners":[{"id":28859,"kind":"person","name":"REEDER JOE","position":1,"cik":"0001256444","reported_name":"REEDER JOE","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-10-02T13:00:15.000Z","date":"2025-10-01","kind":"grant","planned":false,"acquired":true,"shares":2063,"price":7.575,"value":15627.225,"ownership":{"direct":true},"balance_after":248408,"source":{"system":"sec-edgar","filing":"0001493152-25-016622","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/891532/000149315225016622/ownership.xml","form_type":"4"}},{"id":1028434,"issuer":{"id":5704,"kind":"organization","name":"PERMA FIX ENVIRONMENTAL SERVICES INC"},"owners":[{"id":29062,"kind":"person","name":"Duggan Kerry C","position":1,"cik":"0001861456","reported_name":"Duggan Kerry C","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-10-02T13:00:14.000Z","date":"2025-10-01","kind":"grant","planned":false,"acquired":true,"shares":1158,"price":7.575,"value":8771.85,"ownership":{"direct":true},"balance_after":4838,"source":{"system":"sec-edgar","filing":"0001493152-25-016620","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/891532/000149315225016620/ownership.xml","form_type":"4"}},{"id":1039827,"issuer":{"id":5704,"kind":"organization","name":"PERMA FIX ENVIRONMENTAL SERVICES INC"},"owners":[{"id":29062,"kind":"person","name":"Duggan Kerry C","position":1,"cik":"0001861456","reported_name":"Duggan Kerry C","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-09-16T19:30:01.000Z","date":"2025-09-16","kind":"sale","planned":false,"acquired":false,"shares":5653,"price":8.6001,"value":48616.3653,"ownership":{"direct":true},"balance_after":3680,"source":{"system":"sec-edgar","filing":"0001493152-25-013692","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/891532/000149315225013692/ownership.xml","form_type":"4"}},{"id":1042206,"issuer":{"id":5704,"kind":"organization","name":"PERMA FIX ENVIRONMENTAL SERVICES INC"},"owners":[{"id":75475,"kind":"person","name":"Duff Mark","position":1,"cik":"0001678382","reported_name":"Duff Mark","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2025-09-12T20:06:38.000Z","date":"2025-09-11","kind":"purchase","planned":false,"acquired":true,"shares":897,"price":8.05,"value":7220.85,"ownership":{"direct":true},"balance_after":134556,"source":{"system":"sec-edgar","filing":"0001641172-25-027190","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/891532/000164117225027190/ownership.xml","form_type":"4"}},{"id":1042205,"issuer":{"id":5704,"kind":"organization","name":"PERMA FIX ENVIRONMENTAL SERVICES INC"},"owners":[{"id":29066,"kind":"person","name":"Shelton Larry","position":1,"cik":"0001370728","reported_name":"Shelton Larry","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-09-12T17:02:50.000Z","date":"2025-09-11","kind":"purchase","planned":false,"acquired":true,"shares":1000,"price":8.5752,"value":8575.2,"ownership":{"direct":true},"balance_after":189880,"source":{"system":"sec-edgar","filing":"0001641172-25-027170","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/891532/000164117225027170/ownership.xml","form_type":"4"}},{"id":1044374,"issuer":{"id":5704,"kind":"organization","name":"PERMA FIX ENVIRONMENTAL SERVICES INC"},"owners":[{"id":29066,"kind":"person","name":"Shelton Larry","position":1,"cik":"0001370728","reported_name":"Shelton Larry","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-09-10T16:52:35.000Z","date":"2025-09-09","kind":"purchase","planned":false,"acquired":true,"shares":1000,"price":9.6101,"value":9610.1,"ownership":{"direct":true},"balance_after":188880,"source":{"system":"sec-edgar","filing":"0001493152-25-012970","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/891532/000149315225012970/ownership.xml","form_type":"4"}},{"id":1050596,"issuer":{"id":5704,"kind":"organization","name":"PERMA FIX ENVIRONMENTAL SERVICES INC"},"owners":[{"id":29066,"kind":"person","name":"Shelton Larry","position":1,"cik":"0001370728","reported_name":"Shelton Larry","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Stock Option (Right to Buy)","published_at":"2025-09-03T20:48:52.000Z","date":"2025-09-02","kind":"exercise","planned":false,"acquired":false,"shares":2400,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Non-Qualified Stock Option granted 09/17/2015 under the Company's 2003 Outside Directors Stock Plan. The option vests fully six months from grant date."}],"balance_after":0,"derivative":{"exercise_price":4.19,"expiration_date":"2025-09-17","underlying":"Common Stock","underlying_shares":2400},"source":{"system":"sec-edgar","filing":"0001641172-25-026415","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/891532/000164117225026415/ownership.xml","form_type":"4"}},{"id":1050595,"issuer":{"id":5704,"kind":"organization","name":"PERMA FIX ENVIRONMENTAL SERVICES INC"},"owners":[{"id":29066,"kind":"person","name":"Shelton Larry","position":1,"cik":"0001370728","reported_name":"Shelton Larry","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-09-03T20:48:52.000Z","date":"2025-09-02","kind":"exercise","planned":false,"acquired":true,"shares":2400,"price":4.19,"value":10056.0,"ownership":{"direct":true},"balance_after":187880,"source":{"system":"sec-edgar","filing":"0001641172-25-026415","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/891532/000164117225026415/ownership.xml","form_type":"4"}},{"id":1052126,"issuer":{"id":5704,"kind":"organization","name":"PERMA FIX ENVIRONMENTAL SERVICES INC"},"owners":[{"id":29065,"kind":"person","name":"ZWECKER MARK A","position":1,"cik":"0001256439","reported_name":"ZWECKER MARK A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Stock Option (Right to Buy)","published_at":"2025-09-02T12:30:12.000Z","date":"2025-08-28","kind":"exercise","planned":false,"acquired":false,"shares":2400,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Non-Qualified Stock Option granted 09/17/2015 under the Company's 2003 Outside Directors Stock Plan. The option vests fully six months from date of grant."}],"balance_after":0,"derivative":{"exercise_price":4.19,"expiration_date":"2025-09-17","underlying":"Common Stock","underlying_shares":2400},"source":{"system":"sec-edgar","filing":"0001493152-25-012523","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/891532/000149315225012523/ownership.xml","form_type":"4"}},{"id":1052125,"issuer":{"id":5704,"kind":"organization","name":"PERMA FIX ENVIRONMENTAL SERVICES INC"},"owners":[{"id":29065,"kind":"person","name":"ZWECKER MARK A","position":1,"cik":"0001256439","reported_name":"ZWECKER MARK A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-09-02T12:30:12.000Z","date":"2025-08-28","kind":"exercise","planned":false,"acquired":true,"shares":2400,"price":4.19,"value":10056.0,"ownership":{"direct":true},"balance_after":239585,"source":{"system":"sec-edgar","filing":"0001493152-25-012523","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/891532/000149315225012523/ownership.xml","form_type":"4"}},{"id":1081603,"issuer":{"id":5704,"kind":"organization","name":"PERMA FIX ENVIRONMENTAL SERVICES INC"},"owners":[{"id":29062,"kind":"person","name":"Duggan Kerry C","position":1,"cik":"0001861456","reported_name":"Duggan Kerry C","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Stock Option (Right to Buy)","published_at":"2025-07-25T12:30:13.000Z","date":"2025-07-24","kind":"grant","planned":false,"acquired":true,"shares":10000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Non-Qualified Stock Option granted 07/24/2025 under the Company's 2003 Outside Directors Stock Plan. The option vests over a four year period, at 1/4 increment per year."}],"balance_after":10000,"derivative":{"exercise_price":12.23,"expiration_date":"2035-07-24","underlying":"Common Stock","underlying_shares":10000},"source":{"system":"sec-edgar","filing":"0001493152-25-011410","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/891532/000149315225011410/ownership.xml","form_type":"4"}},{"id":1081602,"issuer":{"id":5704,"kind":"organization","name":"PERMA FIX ENVIRONMENTAL SERVICES INC"},"owners":[{"id":29065,"kind":"person","name":"ZWECKER MARK A","position":1,"cik":"0001256439","reported_name":"ZWECKER MARK A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Stock Option (Right to Buy)","published_at":"2025-07-25T12:30:11.000Z","date":"2025-07-24","kind":"grant","planned":false,"acquired":true,"shares":10000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Non-Qualified Stock Option granted 07/24/2025 under the Company's 2003 Outside Directors Stock Plan. The option vests over a four year period, at 1/4 increment per year."}],"balance_after":10000,"derivative":{"exercise_price":12.23,"expiration_date":"2035-07-24","underlying":"Common Stock","underlying_shares":10000},"source":{"system":"sec-edgar","filing":"0001493152-25-011409","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/891532/000149315225011409/ownership.xml","form_type":"4"}},{"id":1081601,"issuer":{"id":5704,"kind":"organization","name":"PERMA FIX ENVIRONMENTAL SERVICES INC"},"owners":[{"id":29063,"kind":"person","name":"Grumski Joseph Timothy","position":1,"cik":"0001802624","reported_name":"Grumski Joseph Timothy","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Stock Option (Right to Buy)","published_at":"2025-07-25T12:30:09.000Z","date":"2025-07-24","kind":"grant","planned":false,"acquired":true,"shares":10000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Non-Qualified Stock Option granted 07/24/2025 under the company's 2003 outside directors Stock Plan. The option vests over a four year period, at 1/4 increment per year."}],"balance_after":10000,"derivative":{"exercise_price":12.23,"expiration_date":"2035-07-24","underlying":"Common Stock","underlying_shares":10000},"source":{"system":"sec-edgar","filing":"0001493152-25-011408","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/891532/000149315225011408/ownership.xml","form_type":"4"}},{"id":1081600,"issuer":{"id":5704,"kind":"organization","name":"PERMA FIX ENVIRONMENTAL SERVICES INC"},"owners":[{"id":29064,"kind":"person","name":"Bostick Thomas","position":1,"cik":"0001724193","reported_name":"Bostick Thomas","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Stock Option (Right to Buy)","published_at":"2025-07-25T12:30:07.000Z","date":"2025-07-24","kind":"grant","planned":false,"acquired":true,"shares":10000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Non-Qualified Stock Option granted 07/24/2025 under the Company's 2003 Outside Directors Stock Plan. The option vests over a four year period, at 1/4 increment per year."}],"balance_after":10000,"derivative":{"exercise_price":12.23,"expiration_date":"2035-07-24","underlying":"Common Stock","underlying_shares":10000},"source":{"system":"sec-edgar","filing":"0001493152-25-011407","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/891532/000149315225011407/ownership.xml","form_type":"4"}},{"id":1081599,"issuer":{"id":5704,"kind":"organization","name":"PERMA FIX ENVIRONMENTAL SERVICES INC"},"owners":[{"id":29066,"kind":"person","name":"Shelton Larry","position":1,"cik":"0001370728","reported_name":"Shelton Larry","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Stock Option (Right to Buy)","published_at":"2025-07-25T12:30:05.000Z","date":"2025-07-24","kind":"grant","planned":false,"acquired":true,"shares":10000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Non-Qualified Stock Option granted 07/24/2025 under the Company's 2003 Outside Directors Stock Plan. The option vests over a four year period, at 1/4 increment per year."}],"balance_after":10000,"derivative":{"exercise_price":12.23,"expiration_date":"2035-07-24","underlying":"Common Stock","underlying_shares":10000},"source":{"system":"sec-edgar","filing":"0001493152-25-011406","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/891532/000149315225011406/ownership.xml","form_type":"4"}},{"id":1081598,"issuer":{"id":5704,"kind":"organization","name":"PERMA FIX ENVIRONMENTAL SERVICES INC"},"owners":[{"id":28859,"kind":"person","name":"REEDER JOE","position":1,"cik":"0001256444","reported_name":"REEDER JOE","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Stock Option (Right to Buy)","published_at":"2025-07-25T12:30:03.000Z","date":"2025-07-24","kind":"grant","planned":false,"acquired":true,"shares":10000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Non-Qualified Stock Option granted 07/24/2025 under the Company's 2003 Outside Directors Stock Plan. The option vests over a four year period, at 1/4 increment per year."}],"balance_after":10000,"derivative":{"exercise_price":12.23,"expiration_date":"2035-07-24","underlying":"Common Stock","underlying_shares":10000},"source":{"system":"sec-edgar","filing":"0001493152-25-011405","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/891532/000149315225011405/ownership.xml","form_type":"4"}},{"id":1081597,"issuer":{"id":5704,"kind":"organization","name":"PERMA FIX ENVIRONMENTAL SERVICES INC"},"owners":[{"id":29067,"kind":"person","name":"Wamp Zach Paul","position":1,"cik":"0001729607","reported_name":"Wamp Zach Paul","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Stock Option (Right to Buy)","published_at":"2025-07-25T12:30:01.000Z","date":"2025-07-24","kind":"grant","planned":false,"acquired":true,"shares":10000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Non-Qualified Stock Option granted 07/24/2025 under the Company's 2003 Outside Directors Stock Plan. The option vests over a four year period, at 1/4 increment per year."}],"balance_after":10000,"derivative":{"exercise_price":12.23,"expiration_date":"2025-07-24","underlying":"Common Stock","underlying_shares":10000},"source":{"system":"sec-edgar","filing":"0001493152-25-011404","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/891532/000149315225011404/ownership.xml","form_type":"4"}},{"id":1087731,"issuer":{"id":5704,"kind":"organization","name":"PERMA FIX ENVIRONMENTAL SERVICES INC"},"owners":[{"id":69105,"kind":"person","name":"Grondin Richard","position":1,"cik":"0001819004","reported_name":"Grondin Richard","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP of Hanford & Int. Waste Op"}}],"security":"Stock Option","published_at":"2025-07-15T16:00:14.000Z","date":"2025-07-14","kind":"exercise","planned":false,"acquired":false,"shares":6000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"On July 14, 2025, the Reporting Person exercised the incentive stock option granted 1/19/2023 under the Company's 2017 Stock Option Plan (the \"2017 Plan\") for the purchase of 6,000 shares of the Company's Common Stock at an exercise price of $3.95 per share (the \"Option shares\"). As permitted by the 2017 Plan, the Reporting Person elected to pay the exercise price of the Option Shares by having the Company withhold from the Option Shares a number of shares having a fair market value equal to the aggregate exercise price of $23,700. Since the fair market value of the Company's Common Stock on July 14, 2025 (as determined in accordance with the 2017 Plan) was $11.32 per share, the Company withheld 2,094 shares of Common Stock ($23,700 divided by $11.32) to pay the aggregate exercise price of the option."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"Incentive stock option granted 01/19/2023 under the Company's 2017 Stock Option Plan for the purchase of up to 30,000 shares of the Company's Common Stock. The option is for a 6 year period and vests over a 5 year period, at 1/5 increment per year."}],"balance_after":18000,"derivative":{"exercise_price":3.95,"expiration_date":"2029-01-19","underlying":"Common Stock","underlying_shares":6000},"source":{"system":"sec-edgar","filing":"0001641172-25-019702","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1819004/000164117225019702/ownership.xml","form_type":"4"}},{"id":1087730,"issuer":{"id":5704,"kind":"organization","name":"PERMA FIX ENVIRONMENTAL SERVICES INC"},"owners":[{"id":69105,"kind":"person","name":"Grondin Richard","position":1,"cik":"0001819004","reported_name":"Grondin Richard","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP of Hanford & Int. Waste Op"}}],"security":"Stock Option","published_at":"2025-07-15T16:00:14.000Z","date":"2025-07-14","kind":"exercise","planned":false,"acquired":false,"shares":5000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"On July 14, 2025, the Reporting Person exercised the incentive stock option granted 10/14/2021 under the Company's 2017 Stock Option Plan (the \"2017 Plan\") for the purchase of 5,000 shares of the Company's Common Stock at an exercise price of $7.005 per share (the \"Option shares\"). As permitted by the 2017 Plan, the Reporting Person elected to pay the exercise price of the Option Shares by having the Company withhold from the Option Shares a number of shares having a fair market value equal to the aggregate exercise price of $35,025. Since the fair market value of the Company's Common Stock on July 14, 2025 (as determined in accordance with the 2017 Plan) was $11.32 per share, the Company withheld 3,094 shares of Common Stock ($35,025 divided by $11.32) to pay the aggregate exercise price of the option."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"Incentive stock option granted 10/14/2021 under the Company's 2017 Stock Option Plan for the purchase of up to 25,000 shares of the Company's Common Stock. The option is for a 6 year period and vests over a 5 year period, at 1/5 increment per year."}],"balance_after":10000,"derivative":{"exercise_price":7.005,"expiration_date":"2027-10-14","underlying":"Common Stock","underlying_shares":5000},"source":{"system":"sec-edgar","filing":"0001641172-25-019702","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1819004/000164117225019702/ownership.xml","form_type":"4"}},{"id":1087729,"issuer":{"id":5704,"kind":"organization","name":"PERMA FIX ENVIRONMENTAL SERVICES INC"},"owners":[{"id":69105,"kind":"person","name":"Grondin Richard","position":1,"cik":"0001819004","reported_name":"Grondin Richard","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP of Hanford & Int. Waste Op"}}],"security":"Common Stock","published_at":"2025-07-15T16:00:14.000Z","date":"2025-07-14","kind":"tax_withholding","planned":false,"acquired":false,"shares":2094,"price":11.32,"value":23704.08,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"On July 14, 2025, the Reporting Person exercised the incentive stock option granted 1/19/2023 under the Company's 2017 Stock Option Plan (the \"2017 Plan\") for the purchase of 6,000 shares of the Company's Common Stock at an exercise price of $3.95 per share (the \"Option shares\"). As permitted by the 2017 Plan, the Reporting Person elected to pay the exercise price of the Option Shares by having the Company withhold from the Option Shares a number of shares having a fair market value equal to the aggregate exercise price of $23,700. Since the fair market value of the Company's Common Stock on July 14, 2025 (as determined in accordance with the 2017 Plan) was $11.32 per share, the Company withheld 2,094 shares of Common Stock ($23,700 divided by $11.32) to pay the aggregate exercise price of the option."}],"balance_after":34592,"source":{"system":"sec-edgar","filing":"0001641172-25-019702","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1819004/000164117225019702/ownership.xml","form_type":"4"}},{"id":1087728,"issuer":{"id":5704,"kind":"organization","name":"PERMA FIX ENVIRONMENTAL SERVICES INC"},"owners":[{"id":69105,"kind":"person","name":"Grondin Richard","position":1,"cik":"0001819004","reported_name":"Grondin Richard","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP of Hanford & Int. Waste Op"}}],"security":"Common Stock","published_at":"2025-07-15T16:00:14.000Z","date":"2025-07-14","kind":"exercise","planned":false,"acquired":true,"shares":6000,"price":3.95,"value":23700.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"On July 14, 2025, the Reporting Person exercised the incentive stock option granted 1/19/2023 under the Company's 2017 Stock Option Plan (the \"2017 Plan\") for the purchase of 6,000 shares of the Company's Common Stock at an exercise price of $3.95 per share (the \"Option shares\"). As permitted by the 2017 Plan, the Reporting Person elected to pay the exercise price of the Option Shares by having the Company withhold from the Option Shares a number of shares having a fair market value equal to the aggregate exercise price of $23,700. Since the fair market value of the Company's Common Stock on July 14, 2025 (as determined in accordance with the 2017 Plan) was $11.32 per share, the Company withheld 2,094 shares of Common Stock ($23,700 divided by $11.32) to pay the aggregate exercise price of the option."}],"balance_after":36686,"source":{"system":"sec-edgar","filing":"0001641172-25-019702","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1819004/000164117225019702/ownership.xml","form_type":"4"}},{"id":1087727,"issuer":{"id":5704,"kind":"organization","name":"PERMA FIX ENVIRONMENTAL SERVICES INC"},"owners":[{"id":69105,"kind":"person","name":"Grondin Richard","position":1,"cik":"0001819004","reported_name":"Grondin Richard","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP of Hanford & Int. Waste Op"}}],"security":"Common Stock","published_at":"2025-07-15T16:00:14.000Z","date":"2025-07-14","kind":"tax_withholding","planned":false,"acquired":false,"shares":3094,"price":11.32,"value":35024.08,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"On July 14, 2025, the Reporting Person exercised the incentive stock option granted 10/14/2021 under the Company's 2017 Stock Option Plan (the \"2017 Plan\") for the purchase of 5,000 shares of the Company's Common Stock at an exercise price of $7.005 per share (the \"Option shares\"). As permitted by the 2017 Plan, the Reporting Person elected to pay the exercise price of the Option Shares by having the Company withhold from the Option Shares a number of shares having a fair market value equal to the aggregate exercise price of $35,025. Since the fair market value of the Company's Common Stock on July 14, 2025 (as determined in accordance with the 2017 Plan) was $11.32 per share, the Company withheld 3,094 shares of Common Stock ($35,025 divided by $11.32) to pay the aggregate exercise price of the option."}],"balance_after":30686,"source":{"system":"sec-edgar","filing":"0001641172-25-019702","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1819004/000164117225019702/ownership.xml","form_type":"4"}},{"id":1087726,"issuer":{"id":5704,"kind":"organization","name":"PERMA FIX ENVIRONMENTAL SERVICES INC"},"owners":[{"id":69105,"kind":"person","name":"Grondin Richard","position":1,"cik":"0001819004","reported_name":"Grondin Richard","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP of Hanford & Int. Waste Op"}}],"security":"Common Stock","published_at":"2025-07-15T16:00:14.000Z","date":"2025-07-14","kind":"exercise","planned":false,"acquired":true,"shares":5000,"price":7.005,"value":35025.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"On July 14, 2025, the Reporting Person exercised the incentive stock option granted 10/14/2021 under the Company's 2017 Stock Option Plan (the \"2017 Plan\") for the purchase of 5,000 shares of the Company's Common Stock at an exercise price of $7.005 per share (the \"Option shares\"). As permitted by the 2017 Plan, the Reporting Person elected to pay the exercise price of the Option Shares by having the Company withhold from the Option Shares a number of shares having a fair market value equal to the aggregate exercise price of $35,025. Since the fair market value of the Company's Common Stock on July 14, 2025 (as determined in accordance with the 2017 Plan) was $11.32 per share, the Company withheld 3,094 shares of Common Stock ($35,025 divided by $11.32) to pay the aggregate exercise price of the option."}],"balance_after":33780,"source":{"system":"sec-edgar","filing":"0001641172-25-019702","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1819004/000164117225019702/ownership.xml","form_type":"4"}},{"id":1096615,"issuer":{"id":5704,"kind":"organization","name":"PERMA FIX ENVIRONMENTAL SERVICES INC"},"owners":[{"id":29065,"kind":"person","name":"ZWECKER MARK A","position":1,"cik":"0001256439","reported_name":"ZWECKER MARK A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-07-02T13:00:19.000Z","date":"2025-07-01","kind":"grant","planned":false,"acquired":true,"shares":1586,"price":7.89,"value":12513.54,"ownership":{"direct":true},"balance_after":237185,"source":{"system":"sec-edgar","filing":"0001641172-25-017476","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/891532/000164117225017476/ownership.xml","form_type":"4"}},{"id":1096614,"issuer":{"id":5704,"kind":"organization","name":"PERMA FIX ENVIRONMENTAL SERVICES INC"},"owners":[{"id":29066,"kind":"person","name":"Shelton Larry","position":1,"cik":"0001370728","reported_name":"Shelton Larry","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-07-02T13:00:17.000Z","date":"2025-07-01","kind":"grant","planned":false,"acquired":true,"shares":1895,"price":7.89,"value":14951.55,"ownership":{"direct":true},"balance_after":185480,"source":{"system":"sec-edgar","filing":"0001641172-25-017473","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/891532/000164117225017473/ownership.xml","form_type":"4"}},{"id":1096613,"issuer":{"id":5704,"kind":"organization","name":"PERMA FIX ENVIRONMENTAL SERVICES INC"},"owners":[{"id":29062,"kind":"person","name":"Duggan Kerry C","position":1,"cik":"0001861456","reported_name":"Duggan Kerry C","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-07-02T13:00:16.000Z","date":"2025-07-01","kind":"grant","planned":false,"acquired":true,"shares":1112,"price":7.89,"value":8773.68,"ownership":{"direct":true},"balance_after":9333,"source":{"system":"sec-edgar","filing":"0001641172-25-017470","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/891532/000164117225017470/ownership.xml","form_type":"4"}},{"id":1096612,"issuer":{"id":5704,"kind":"organization","name":"PERMA FIX ENVIRONMENTAL SERVICES INC"},"owners":[{"id":29063,"kind":"person","name":"Grumski Joseph Timothy","position":1,"cik":"0001802624","reported_name":"Grumski Joseph Timothy","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-07-02T13:00:14.000Z","date":"2025-07-01","kind":"grant","planned":false,"acquired":true,"shares":2202,"price":7.89,"value":17373.78,"ownership":{"direct":true},"balance_after":59690,"source":{"system":"sec-edgar","filing":"0001641172-25-017471","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/891532/000164117225017471/ownership.xml","form_type":"4"}},{"id":1096611,"issuer":{"id":5704,"kind":"organization","name":"PERMA FIX ENVIRONMENTAL SERVICES INC"},"owners":[{"id":29064,"kind":"person","name":"Bostick Thomas","position":1,"cik":"0001724193","reported_name":"Bostick Thomas","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-07-02T13:00:13.000Z","date":"2025-07-01","kind":"grant","planned":false,"acquired":true,"shares":1584,"price":7.89,"value":12497.76,"ownership":{"direct":true},"balance_after":44798,"source":{"system":"sec-edgar","filing":"0001641172-25-017475","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/891532/000164117225017475/ownership.xml","form_type":"4"}},{"id":1096609,"issuer":{"id":5704,"kind":"organization","name":"PERMA FIX ENVIRONMENTAL SERVICES INC"},"owners":[{"id":28859,"kind":"person","name":"REEDER JOE","position":1,"cik":"0001256444","reported_name":"REEDER JOE","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-07-02T13:00:11.000Z","date":"2025-07-01","kind":"grant","planned":false,"acquired":true,"shares":1980,"price":7.89,"value":15622.2,"ownership":{"direct":true},"balance_after":246345,"source":{"system":"sec-edgar","filing":"0001641172-25-017472","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/891532/000164117225017472/ownership.xml","form_type":"4"}},{"id":1096610,"issuer":{"id":5704,"kind":"organization","name":"PERMA FIX ENVIRONMENTAL SERVICES INC"},"owners":[{"id":29067,"kind":"person","name":"Wamp Zach Paul","position":1,"cik":"0001729607","reported_name":"Wamp Zach Paul","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-07-02T13:00:09.000Z","date":"2025-07-01","kind":"grant","planned":false,"acquired":true,"shares":1153,"price":7.89,"value":9097.17,"ownership":{"direct":true},"balance_after":49365,"source":{"system":"sec-edgar","filing":"0001641172-25-017474","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/891532/000164117225017474/ownership.xml","form_type":"4"}},{"id":1128396,"issuer":{"id":5704,"kind":"organization","name":"PERMA FIX ENVIRONMENTAL SERVICES INC"},"owners":[{"id":29062,"kind":"person","name":"Duggan Kerry C","position":1,"cik":"0001861456","reported_name":"Duggan Kerry C","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-06-02T20:30:32.000Z","date":"2025-05-30","kind":"sale","planned":false,"acquired":false,"shares":16634,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Shares were sold at a weighted average price of $10.92 per share. The shares sold ranged from $10.70 per share to $11.02 per share."}],"balance_after":8221,"source":{"system":"sec-edgar","filing":"0001641172-25-013245","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/891532/000164117225013245/ownership.xml","form_type":"4"}},{"id":1184972,"issuer":{"id":5704,"kind":"organization","name":"PERMA FIX ENVIRONMENTAL SERVICES INC"},"owners":[{"id":29063,"kind":"person","name":"Grumski Joseph Timothy","position":1,"cik":"0001802624","reported_name":"Grumski Joseph Timothy","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-04-02T16:15:58.000Z","date":"2025-04-01","kind":"grant","planned":false,"acquired":true,"shares":3095,"price":5.4525,"value":16875.4875,"ownership":{"direct":true},"balance_after":57758,"source":{"system":"sec-edgar","filing":"0001641172-25-002318","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/891532/000164117225002318/ownership.xml","form_type":"4"}},{"id":1184971,"issuer":{"id":5704,"kind":"organization","name":"PERMA FIX ENVIRONMENTAL SERVICES INC"},"owners":[{"id":29067,"kind":"person","name":"Wamp Zach Paul","position":1,"cik":"0001729607","reported_name":"Wamp Zach Paul","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-04-02T13:00:09.000Z","date":"2025-04-01","kind":"grant","planned":false,"acquired":true,"shares":1609,"price":5.4525,"value":8773.0725,"ownership":{"direct":true},"balance_after":48212,"source":{"system":"sec-edgar","filing":"0001641172-25-002284","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/891532/000164117225002284/ownership.xml","form_type":"4"}},{"id":1184970,"issuer":{"id":5704,"kind":"organization","name":"PERMA FIX ENVIRONMENTAL SERVICES INC"},"owners":[{"id":29064,"kind":"person","name":"Bostick Thomas","position":1,"cik":"0001724193","reported_name":"Bostick Thomas","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-04-02T13:00:06.000Z","date":"2025-04-01","kind":"grant","planned":false,"acquired":true,"shares":2293,"price":5.4525,"value":12502.5825,"ownership":{"direct":true},"balance_after":43214,"source":{"system":"sec-edgar","filing":"0001641172-25-002286","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/891532/000164117225002286/ownership.xml","form_type":"4"}},{"id":1184969,"issuer":{"id":5704,"kind":"organization","name":"PERMA FIX ENVIRONMENTAL SERVICES INC"},"owners":[{"id":29062,"kind":"person","name":"Duggan Kerry C","position":1,"cik":"0001861456","reported_name":"Duggan Kerry C","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-04-02T13:00:06.000Z","date":"2025-04-01","kind":"grant","planned":false,"acquired":true,"shares":1550,"price":5.4525,"value":8451.375,"ownership":{"direct":true},"balance_after":24855,"source":{"system":"sec-edgar","filing":"0001641172-25-002282","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/891532/000164117225002282/ownership.xml","form_type":"4"}},{"id":1184968,"issuer":{"id":5704,"kind":"organization","name":"PERMA FIX ENVIRONMENTAL SERVICES INC"},"owners":[{"id":28859,"kind":"person","name":"REEDER JOE","position":1,"cik":"0001256444","reported_name":"REEDER JOE","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-04-02T13:00:05.000Z","date":"2025-04-01","kind":"grant","planned":false,"acquired":true,"shares":2774,"price":5.4525,"value":15125.235,"ownership":{"direct":true},"balance_after":244365,"source":{"system":"sec-edgar","filing":"0001641172-25-002285","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/891532/000164117225002285/ownership.xml","form_type":"4"}},{"id":1184967,"issuer":{"id":5704,"kind":"organization","name":"PERMA FIX ENVIRONMENTAL SERVICES INC"},"owners":[{"id":29065,"kind":"person","name":"ZWECKER MARK A","position":1,"cik":"0001256439","reported_name":"ZWECKER MARK A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-04-02T13:00:05.000Z","date":"2025-04-01","kind":"grant","planned":false,"acquired":true,"shares":2235,"price":5.4525,"value":12186.3375,"ownership":{"direct":true},"balance_after":235599,"source":{"system":"sec-edgar","filing":"0001641172-25-002281","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/891532/000164117225002281/ownership.xml","form_type":"4"}},{"id":1184966,"issuer":{"id":5704,"kind":"organization","name":"PERMA FIX ENVIRONMENTAL SERVICES INC"},"owners":[{"id":29066,"kind":"person","name":"Shelton Larry","position":1,"cik":"0001370728","reported_name":"Shelton Larry","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-04-02T13:00:04.000Z","date":"2025-04-01","kind":"grant","planned":false,"acquired":true,"shares":2623,"price":5.4525,"value":14301.9075,"ownership":{"direct":true},"balance_after":183585,"source":{"system":"sec-edgar","filing":"0001641172-25-002280","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/891532/000164117225002280/ownership.xml","form_type":"4"}},{"id":1194082,"issuer":{"id":5704,"kind":"organization","name":"PERMA FIX ENVIRONMENTAL SERVICES INC"},"owners":[{"id":81638,"kind":"person","name":"Naccarato Ben","position":1,"cik":"0001448779","reported_name":"Naccarato Ben","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2025-03-24T16:55:35.000Z","date":"2025-03-21","kind":"purchase","planned":false,"acquired":true,"shares":400,"price":7,"value":2800.0,"ownership":{"direct":true},"balance_after":48811,"source":{"system":"sec-edgar","filing":"0001641172-25-000242","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/891532/000164117225000242/ownership.xml","form_type":"4"}},{"id":1194081,"issuer":{"id":5704,"kind":"organization","name":"PERMA FIX ENVIRONMENTAL SERVICES INC"},"owners":[{"id":29066,"kind":"person","name":"Shelton Larry","position":1,"cik":"0001370728","reported_name":"Shelton Larry","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-03-24T13:42:17.000Z","date":"2025-03-21","kind":"grant","planned":false,"acquired":true,"shares":2000,"price":7.0699,"value":14139.8,"ownership":{"direct":true},"balance_after":180962,"source":{"system":"sec-edgar","filing":"0001641172-25-000226","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/891532/000164117225000226/ownership.xml","form_type":"4"}},{"id":1194080,"issuer":{"id":5704,"kind":"organization","name":"PERMA FIX ENVIRONMENTAL SERVICES INC"},"owners":[{"id":75475,"kind":"person","name":"Duff Mark","position":1,"cik":"0001678382","reported_name":"Duff Mark","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2025-03-24T13:42:15.000Z","date":"2025-03-21","kind":"purchase","planned":false,"acquired":true,"shares":650,"price":7.05,"value":4582.5,"ownership":{"direct":true},"balance_after":133659,"source":{"system":"sec-edgar","filing":"0001641172-25-000225","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/891532/000164117225000225/ownership.xml","form_type":"4"}},{"id":1194079,"issuer":{"id":5704,"kind":"organization","name":"PERMA FIX ENVIRONMENTAL SERVICES INC"},"owners":[{"id":75475,"kind":"person","name":"Duff Mark","position":1,"cik":"0001678382","reported_name":"Duff Mark","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2025-03-24T13:42:15.000Z","date":"2025-03-21","kind":"purchase","planned":false,"acquired":true,"shares":650,"price":7.03,"value":4569.5,"ownership":{"direct":true},"balance_after":133009,"source":{"system":"sec-edgar","filing":"0001641172-25-000225","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/891532/000164117225000225/ownership.xml","form_type":"4"}},{"id":1194078,"issuer":{"id":5704,"kind":"organization","name":"PERMA FIX ENVIRONMENTAL SERVICES INC"},"owners":[{"id":75475,"kind":"person","name":"Duff Mark","position":1,"cik":"0001678382","reported_name":"Duff Mark","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2025-03-24T13:42:15.000Z","date":"2025-03-21","kind":"purchase","planned":false,"acquired":true,"shares":750,"price":7.02,"value":5265.0,"ownership":{"direct":true},"balance_after":132359,"source":{"system":"sec-edgar","filing":"0001641172-25-000225","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/891532/000164117225000225/ownership.xml","form_type":"4"}},{"id":1197658,"issuer":{"id":5704,"kind":"organization","name":"PERMA FIX ENVIRONMENTAL SERVICES INC"},"owners":[{"id":81786,"kind":"person","name":"Eshleman Troy","position":1,"cik":"0002054186","reported_name":"Eshleman Troy","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operating Officer"}}],"security":"Common Stock","published_at":"2025-03-19T22:14:43.000Z","date":"2025-03-18","kind":"purchase","planned":false,"acquired":true,"shares":1350,"price":7.35,"value":9922.5,"ownership":{"direct":true},"balance_after":1350,"source":{"system":"sec-edgar","filing":"0001641172-25-000037","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/891532/000164117225000037/ownership.xml","form_type":"4"}},{"id":1197660,"issuer":{"id":5704,"kind":"organization","name":"PERMA FIX ENVIRONMENTAL SERVICES INC"},"owners":[{"id":75475,"kind":"person","name":"Duff Mark","position":1,"cik":"0001678382","reported_name":"Duff Mark","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2025-03-19T17:49:56.000Z","date":"2025-03-18","kind":"purchase","planned":false,"acquired":true,"shares":500,"price":7.2,"value":3600.0,"ownership":{"direct":true},"balance_after":131609,"source":{"system":"sec-edgar","filing":"0001641172-25-000009","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/891532/000164117225000009/ownership.xml","form_type":"4"}}],"next_cursor":"2025-03-19T17:49:56.000000Z,1197660"}