{"transactions":[{"id":840978,"issuer":{"id":4897,"kind":"organization","name":"Ecovyst Inc.","symbol":"ECVT"},"owners":[{"id":60522,"kind":"person","name":"Bitting Kurt","position":1,"cik":"0001769761","reported_name":"Bitting Kurt","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"See Remarks"}}],"security":"Option (Right to Buy)","published_at":"2026-03-16T20:00:27.000Z","date":"2026-03-12","kind":"exercise","planned":false,"acquired":false,"shares":9516,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":0,"derivative":{"exercise_price":8.04,"exercise_date":"2018-12-01","expiration_date":"2026-05-04","underlying":"Common Stock","underlying_shares":9516},"source":{"system":"sec-edgar","filing":"0001708035-26-000059","document":"wk-form4_1773691224.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1708035/000170803526000059/wk-form4_1773691224.xml","form_type":"4"}},{"id":840977,"issuer":{"id":4897,"kind":"organization","name":"Ecovyst Inc.","symbol":"ECVT"},"owners":[{"id":60522,"kind":"person","name":"Bitting Kurt","position":1,"cik":"0001769761","reported_name":"Bitting Kurt","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"See Remarks"}}],"security":"Option (Right to Buy)","published_at":"2026-03-16T20:00:27.000Z","date":"2026-03-12","kind":"exercise","planned":false,"acquired":false,"shares":9516,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":0,"derivative":{"exercise_price":8.04,"exercise_date":"2017-12-01","expiration_date":"2026-05-04","underlying":"Common Stock","underlying_shares":9516},"source":{"system":"sec-edgar","filing":"0001708035-26-000059","document":"wk-form4_1773691224.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1708035/000170803526000059/wk-form4_1773691224.xml","form_type":"4"}},{"id":840976,"issuer":{"id":4897,"kind":"organization","name":"Ecovyst Inc.","symbol":"ECVT"},"owners":[{"id":60522,"kind":"person","name":"Bitting Kurt","position":1,"cik":"0001769761","reported_name":"Bitting Kurt","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"See Remarks"}}],"security":"Option (Right to Buy)","published_at":"2026-03-16T20:00:27.000Z","date":"2026-03-12","kind":"exercise","planned":false,"acquired":false,"shares":9516,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":0,"derivative":{"exercise_price":8.04,"exercise_date":"2016-12-01","expiration_date":"2026-05-04","underlying":"Common Stock","underlying_shares":9516},"source":{"system":"sec-edgar","filing":"0001708035-26-000059","document":"wk-form4_1773691224.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1708035/000170803526000059/wk-form4_1773691224.xml","form_type":"4"}},{"id":840975,"issuer":{"id":4897,"kind":"organization","name":"Ecovyst Inc.","symbol":"ECVT"},"owners":[{"id":60522,"kind":"person","name":"Bitting Kurt","position":1,"cik":"0001769761","reported_name":"Bitting Kurt","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"See Remarks"}}],"security":"Option (Right to Buy)","published_at":"2026-03-16T20:00:27.000Z","date":"2026-03-12","kind":"exercise","planned":false,"acquired":false,"shares":9516,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":0,"derivative":{"exercise_price":8.04,"exercise_date":"2016-05-04","expiration_date":"2026-05-04","underlying":"Common Stock","underlying_shares":9516},"source":{"system":"sec-edgar","filing":"0001708035-26-000059","document":"wk-form4_1773691224.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1708035/000170803526000059/wk-form4_1773691224.xml","form_type":"4"}},{"id":840974,"issuer":{"id":4897,"kind":"organization","name":"Ecovyst Inc.","symbol":"ECVT"},"owners":[{"id":60522,"kind":"person","name":"Bitting Kurt","position":1,"cik":"0001769761","reported_name":"Bitting Kurt","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"See Remarks"}}],"security":"Common Stock","published_at":"2026-03-16T20:00:27.000Z","date":"2026-03-12","kind":"exercise","planned":false,"acquired":true,"shares":38064,"price":3.04,"value":115714.56,"ownership":{"direct":true},"balance_after":698382,"source":{"system":"sec-edgar","filing":"0001708035-26-000059","document":"wk-form4_1773691224.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1708035/000170803526000059/wk-form4_1773691224.xml","form_type":"4"}},{"id":917278,"issuer":{"id":4897,"kind":"organization","name":"Ecovyst Inc.","symbol":"ECVT"},"owners":[{"id":60522,"kind":"person","name":"Bitting Kurt","position":1,"cik":"0001769761","reported_name":"Bitting Kurt","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"See Remarks"}}],"security":"Common Stock","published_at":"2026-02-05T21:05:28.000Z","date":"2026-02-03","kind":"grant","planned":false,"acquired":true,"shares":116392,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":660318,"source":{"system":"sec-edgar","filing":"0001708035-26-000038","document":"wk-form4_1770325525.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1708035/000170803526000038/wk-form4_1770325525.xml","form_type":"4"}},{"id":917277,"issuer":{"id":4897,"kind":"organization","name":"Ecovyst Inc.","symbol":"ECVT"},"owners":[{"id":60522,"kind":"person","name":"Bitting Kurt","position":1,"cik":"0001769761","reported_name":"Bitting Kurt","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"See Remarks"}}],"security":"Common Stock","published_at":"2026-02-05T21:05:28.000Z","date":"2026-02-03","kind":"tax_withholding","planned":false,"acquired":false,"shares":25925,"price":10.31,"value":267286.75,"ownership":{"direct":true},"balance_after":543926,"source":{"system":"sec-edgar","filing":"0001708035-26-000038","document":"wk-form4_1770325525.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1708035/000170803526000038/wk-form4_1770325525.xml","form_type":"4"}},{"id":930990,"issuer":{"id":4897,"kind":"organization","name":"Ecovyst Inc.","symbol":"ECVT"},"owners":[{"id":60522,"kind":"person","name":"Bitting Kurt","position":1,"cik":"0001769761","reported_name":"Bitting Kurt","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"See Remarks"}}],"security":"Common Stock","published_at":"2026-01-26T21:00:22.000Z","date":"2026-01-22","kind":"tax_withholding","planned":false,"acquired":false,"shares":16053,"price":10.84,"value":174014.52,"ownership":{"direct":true},"balance_after":569851,"source":{"system":"sec-edgar","filing":"0001708035-26-000017","document":"wk-form4_1769461220.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1708035/000170803526000017/wk-form4_1769461220.xml","form_type":"4"}},{"id":943980,"issuer":{"id":4897,"kind":"organization","name":"Ecovyst Inc.","symbol":"ECVT"},"owners":[{"id":60522,"kind":"person","name":"Bitting Kurt","position":1,"cik":"0001769761","reported_name":"Bitting Kurt","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"See Remarks"}}],"security":"Common Stock","published_at":"2026-01-07T21:16:53.000Z","date":"2026-01-05","kind":"tax_withholding","planned":false,"acquired":false,"shares":16097,"price":9.8,"value":157750.6,"ownership":{"direct":true},"balance_after":585904,"source":{"system":"sec-edgar","filing":"0001708035-26-000012","document":"wk-form4_1767820609.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1708035/000170803526000012/wk-form4_1767820609.xml","form_type":"4"}},{"id":1281380,"issuer":{"id":4897,"kind":"organization","name":"Ecovyst Inc.","symbol":"ECVT"},"owners":[{"id":60522,"kind":"person","name":"Bitting Kurt","position":1,"cik":"0001769761","reported_name":"Bitting Kurt","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"See Remarks"}}],"security":"Common Stock","published_at":"2025-02-05T21:10:40.000Z","date":"2025-02-03","kind":"grant","planned":false,"acquired":true,"shares":154044,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":602001,"source":{"system":"sec-edgar","filing":"0001708035-25-000055","document":"wk-form4_1738789832.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1708035/000170803525000055/wk-form4_1738789832.xml","form_type":"4"}},{"id":1296144,"issuer":{"id":4897,"kind":"organization","name":"Ecovyst Inc.","symbol":"ECVT"},"owners":[{"id":60522,"kind":"person","name":"Bitting Kurt","position":1,"cik":"0001769761","reported_name":"Bitting Kurt","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"See Remarks"}}],"security":"Common Stock","published_at":"2025-01-23T21:08:37.000Z","date":"2025-01-22","kind":"tax_withholding","planned":false,"acquired":false,"shares":14315,"price":7.96,"value":113947.4,"ownership":{"direct":true},"balance_after":447957,"source":{"system":"sec-edgar","filing":"0001708035-25-000019","document":"wk-form4_1737666510.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1708035/000170803525000019/wk-form4_1737666510.xml","form_type":"4"}},{"id":1307464,"issuer":{"id":4897,"kind":"organization","name":"Ecovyst Inc.","symbol":"ECVT"},"owners":[{"id":60522,"kind":"person","name":"Bitting Kurt","position":1,"cik":"0001769761","reported_name":"Bitting Kurt","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"See Remarks"}}],"security":"Common Stock","published_at":"2025-01-07T22:15:28.000Z","date":"2025-01-05","kind":"tax_withholding","planned":false,"acquired":false,"shares":27060,"price":7.755,"value":209850.3,"ownership":{"direct":true},"balance_after":462272,"source":{"system":"sec-edgar","filing":"0001708035-25-000008","document":"wk-form4_1736288121.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1708035/000170803525000008/wk-form4_1736288121.xml","form_type":"4"}},{"id":1439346,"issuer":{"id":4897,"kind":"organization","name":"Ecovyst Inc.","symbol":"ECVT"},"owners":[{"id":60522,"kind":"person","name":"Bitting Kurt","position":1,"cik":"0001769761","reported_name":"Bitting Kurt","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"See Remarks"}}],"security":"Common Stock","published_at":"2024-08-06T20:00:58.000Z","date":"2024-08-05","kind":"purchase","planned":false,"acquired":true,"shares":5000,"price":6.2699,"value":31349.5,"ownership":{"direct":true},"balance_after":489332,"source":{"system":"sec-edgar","filing":"0001708035-24-000105","document":"wk-form4_1722974450.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1708035/000170803524000105/wk-form4_1722974450.xml","form_type":"4"}},{"id":1671819,"issuer":{"id":4897,"kind":"organization","name":"Ecovyst Inc.","symbol":"ECVT"},"owners":[{"id":60522,"kind":"person","name":"Bitting Kurt","position":1,"cik":"0001769761","reported_name":"Bitting Kurt","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"See Remarks"}}],"security":"Common Stock","published_at":"2024-01-24T21:41:42.000Z","date":"2024-01-22","kind":"grant","planned":false,"acquired":true,"shares":99319,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":484332,"source":{"system":"sec-edgar","filing":"0001708035-24-000051","document":"wk-form4_1706132491.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1708035/000170803524000051/wk-form4_1706132491.xml","form_type":"4"}},{"id":1682257,"issuer":{"id":4897,"kind":"organization","name":"Ecovyst Inc.","symbol":"ECVT"},"owners":[{"id":60522,"kind":"person","name":"Bitting Kurt","position":1,"cik":"0001769761","reported_name":"Bitting Kurt","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"See Remarks"}}],"security":"Common Stock","published_at":"2024-01-09T21:21:20.000Z","date":"2024-01-05","kind":"tax_withholding","planned":false,"acquired":false,"shares":30705,"price":9.46,"value":290469.3,"ownership":{"direct":true},"balance_after":385013,"source":{"system":"sec-edgar","filing":"0001708035-24-000009","document":"wk-form4_1704835264.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1708035/000170803524000009/wk-form4_1704835264.xml","form_type":"4"}},{"id":1795981,"issuer":{"id":4897,"kind":"organization","name":"Ecovyst Inc.","symbol":"ECVT"},"owners":[{"id":60522,"kind":"person","name":"Bitting Kurt","position":1,"cik":"0001769761","reported_name":"Bitting Kurt","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"See Remarks"}}],"security":"Common Stock","published_at":"2023-08-25T11:30:32.000Z","date":"2023-08-23","kind":"purchase","planned":false,"acquired":true,"shares":3100,"price":9.6422,"value":29890.82,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $9.635 to $9.645, inclusive. The reporting person undertakes to provide to Ecovyst Inc., any security holder of Ecovyst Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price."}],"balance_after":415718,"source":{"system":"sec-edgar","filing":"0000950170-23-044485","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1708035/000095017023044485/ownership.xml","form_type":"4"}},{"id":1835072,"issuer":{"id":4897,"kind":"organization","name":"Ecovyst Inc.","symbol":"ECVT"},"owners":[{"id":60522,"kind":"person","name":"Bitting Kurt","position":1,"cik":"0001769761","reported_name":"Bitting Kurt","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"See Remarks"}}],"security":"Common Stock","published_at":"2023-07-05T20:30:23.000Z","date":"2023-07-01","kind":"tax_withholding","planned":false,"acquired":false,"shares":63032,"price":11.37,"value":716673.84,"ownership":{"direct":true},"balance_after":412618,"source":{"system":"sec-edgar","filing":"0000899243-23-016898","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1708035/000089924323016898/doc4.xml","form_type":"4"}},{"id":1960459,"issuer":{"id":4897,"kind":"organization","name":"Ecovyst Inc.","symbol":"ECVT"},"owners":[{"id":60522,"kind":"person","name":"Bitting Kurt","position":1,"cik":"0001769761","reported_name":"Bitting Kurt","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"See Remarks"}}],"security":"Common Stock","published_at":"2023-03-09T23:08:58.000Z","date":"2023-03-08","kind":"tax_withholding","acquired":false,"shares":1359,"price":10.715,"value":14561.685,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents the shares withheld by the Company to satisfy tax withholding obligations in connection with the vesting of equity awards and does not represent any sale by the Reporting Person."}],"balance_after":475650,"source":{"system":"sec-edgar","filing":"0000950170-23-007099","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1708035/000095017023007099/ownership.xml","form_type":"4"}},{"id":1960458,"issuer":{"id":4897,"kind":"organization","name":"Ecovyst Inc.","symbol":"ECVT"},"owners":[{"id":60522,"kind":"person","name":"Bitting Kurt","position":1,"cik":"0001769761","reported_name":"Bitting Kurt","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"See Remarks"}}],"security":"Common Stock","published_at":"2023-03-09T23:08:58.000Z","date":"2023-03-08","kind":"grant","acquired":true,"shares":12306,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":477009,"source":{"system":"sec-edgar","filing":"0000950170-23-007099","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1708035/000095017023007099/ownership.xml","form_type":"4"}},{"id":2047205,"issuer":{"id":4897,"kind":"organization","name":"Ecovyst Inc.","symbol":"ECVT"},"owners":[{"id":60522,"kind":"person","name":"Bitting Kurt","position":1,"cik":"0001769761","reported_name":"Bitting Kurt","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"See Remarks"}}],"security":"Common Stock","published_at":"2023-01-24T21:15:16.000Z","date":"2023-01-20","kind":"tax_withholding","acquired":false,"shares":714,"price":10.16,"value":7254.24,"ownership":{"direct":true},"balance_after":464703,"source":{"system":"sec-edgar","filing":"0000899243-23-002475","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1708035/000089924323002475/doc4.xml","form_type":"4"}},{"id":2051996,"issuer":{"id":4897,"kind":"organization","name":"Ecovyst Inc.","symbol":"ECVT"},"owners":[{"id":60522,"kind":"person","name":"Bitting Kurt","position":1,"cik":"0001769761","reported_name":"Bitting Kurt","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"See Remarks"}}],"security":"Common Stock","published_at":"2023-01-18T21:35:48.000Z","date":"2023-01-16","kind":"grant","acquired":true,"shares":106708,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":465417,"source":{"system":"sec-edgar","filing":"0000899243-23-002041","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1708035/000089924323002041/doc4.xml","form_type":"4"}},{"id":2058369,"issuer":{"id":4897,"kind":"organization","name":"Ecovyst Inc.","symbol":"ECVT"},"owners":[{"id":60522,"kind":"person","name":"Bitting Kurt","position":1,"cik":"0001769761","reported_name":"Bitting Kurt","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"See Remarks"}}],"security":"Common Stock","published_at":"2023-01-09T21:15:28.000Z","date":"2023-01-05","kind":"tax_withholding","acquired":false,"shares":13362,"price":9.035,"value":120725.67,"ownership":{"direct":true},"balance_after":358709,"source":{"system":"sec-edgar","filing":"0000899243-23-001296","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1708035/000089924323001296/doc4.xml","form_type":"4"}},{"id":2191664,"issuer":{"id":4897,"kind":"organization","name":"Ecovyst Inc.","symbol":"ECVT"},"owners":[{"id":60522,"kind":"person","name":"Bitting Kurt","position":1,"cik":"0001769761","reported_name":"Bitting Kurt","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"See Remarks"}}],"security":"Common Stock","published_at":"2022-08-08T20:29:06.000Z","date":"2022-08-05","kind":"purchase","acquired":true,"shares":10750,"price":8.8523,"value":95162.225,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $8.845 to $8.86, inclusive. The reporting person undertakes to provide to Ecovyst Inc., any security holder of Ecovyst Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price."}],"balance_after":372071,"source":{"system":"sec-edgar","filing":"0000899243-22-027991","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1708035/000089924322027991/doc4.xml","form_type":"4"}},{"id":2269741,"issuer":{"id":4897,"kind":"organization","name":"Ecovyst Inc.","symbol":"ECVT"},"owners":[{"id":60522,"kind":"person","name":"Bitting Kurt","position":1,"cik":"0001769761","reported_name":"Bitting Kurt","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"See Remarks"}}],"security":"Common Stock","published_at":"2022-05-16T20:33:36.000Z","date":"2022-05-12","kind":"purchase","acquired":true,"shares":5144,"price":9.7118,"value":49957.4992,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $9.70 to $9.7285, inclusive. The reporting person undertakes to provide to Ecovyst Inc., any security holder of Ecovyst Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in footnote (1) to this Form 4."}],"balance_after":361321,"source":{"system":"sec-edgar","filing":"0000899243-22-018146","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1708035/000089924322018146/doc4.xml","form_type":"4"}},{"id":2352425,"issuer":{"id":4897,"kind":"organization","name":"Ecovyst Inc.","symbol":"ECVT"},"owners":[{"id":60522,"kind":"person","name":"Bitting Kurt","position":1,"cik":"0001769761","reported_name":"Bitting Kurt","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"See Remarks"}}],"security":"Common Stock","published_at":"2022-03-03T21:30:53.000Z","date":"2022-03-01","kind":"tax_withholding","acquired":false,"shares":1917,"price":10.63,"value":20377.71,"ownership":{"direct":true},"balance_after":356177,"source":{"system":"sec-edgar","filing":"0000899243-22-009080","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1708035/000089924322009080/doc4.xml","form_type":"4"}},{"id":2352424,"issuer":{"id":4897,"kind":"organization","name":"Ecovyst Inc.","symbol":"ECVT"},"owners":[{"id":60522,"kind":"person","name":"Bitting Kurt","position":1,"cik":"0001769761","reported_name":"Bitting Kurt","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"See Remarks"}}],"security":"Common Stock","published_at":"2022-03-03T21:30:53.000Z","date":"2022-03-01","kind":"grant","acquired":true,"shares":24335,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":358094,"source":{"system":"sec-edgar","filing":"0000899243-22-009080","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1708035/000089924322009080/doc4.xml","form_type":"4"}},{"id":2427427,"issuer":{"id":4897,"kind":"organization","name":"Ecovyst Inc.","symbol":"ECVT"},"owners":[{"id":60522,"kind":"person","name":"Bitting Kurt","position":1,"cik":"0001769761","reported_name":"Bitting Kurt","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"See Remarks"}}],"security":"Common Stock","published_at":"2022-01-24T21:28:50.000Z","date":"2022-01-20","kind":"tax_withholding","acquired":false,"shares":496,"price":10.19,"value":5054.24,"ownership":{"direct":true},"balance_after":333759,"source":{"system":"sec-edgar","filing":"0000899243-22-003010","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1708035/000089924322003010/doc4.xml","form_type":"4"}},{"id":2431758,"issuer":{"id":4897,"kind":"organization","name":"Ecovyst Inc.","symbol":"ECVT"},"owners":[{"id":60522,"kind":"person","name":"Bitting Kurt","position":1,"cik":"0001769761","reported_name":"Bitting Kurt","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"See Remarks"}}],"security":"Common Stock","published_at":"2022-01-19T21:24:46.000Z","date":"2022-01-17","kind":"grant","acquired":true,"shares":145773,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":334255,"source":{"system":"sec-edgar","filing":"0000899243-22-002412","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1708035/000089924322002412/doc4.xml","form_type":"4"}},{"id":2431757,"issuer":{"id":4897,"kind":"organization","name":"Ecovyst Inc.","symbol":"ECVT"},"owners":[{"id":60522,"kind":"person","name":"Bitting Kurt","position":1,"cik":"0001769761","reported_name":"Bitting Kurt","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"See Remarks"}}],"security":"Common Stock, par value $0.01 per share (\"Common Stock\")","published_at":"2022-01-19T21:24:46.000Z","date":"2022-01-17","kind":"grant","acquired":true,"shares":72887,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":188482,"source":{"system":"sec-edgar","filing":"0000899243-22-002412","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1708035/000089924322002412/doc4.xml","form_type":"4"}},{"id":2439638,"issuer":{"id":4897,"kind":"organization","name":"Ecovyst Inc.","symbol":"ECVT"},"owners":[{"id":60522,"kind":"person","name":"Bitting Kurt","position":1,"cik":"0001769761","reported_name":"Bitting Kurt","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"See Remarks"}}],"security":"Common Stock","published_at":"2022-01-07T21:30:24.000Z","date":"2022-01-05","kind":"tax_withholding","acquired":false,"shares":4163,"price":10.27,"value":42754.01,"ownership":{"direct":true},"balance_after":115595,"source":{"system":"sec-edgar","filing":"0000899243-22-001366","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1708035/000089924322001366/doc4.xml","form_type":"4"}},{"id":2898680,"issuer":{"id":4897,"kind":"organization","name":"Ecovyst Inc.","symbol":"ECVT"},"owners":[{"id":60522,"kind":"person","name":"Bitting Kurt","position":1,"cik":"0001769761","reported_name":"Bitting Kurt","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"See Remarks"}}],"security":"Common Stock","published_at":"2021-01-23T01:08:17.000Z","date":"2021-01-20","kind":"tax_withholding","acquired":false,"shares":1851,"price":15.495,"value":28681.245,"ownership":{"direct":true},"balance_after":119758,"source":{"system":"sec-edgar","filing":"0000899243-21-003026","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1708035/000089924321003026/doc4.xml","form_type":"4"}},{"id":2901483,"issuer":{"id":4897,"kind":"organization","name":"Ecovyst Inc.","symbol":"ECVT"},"owners":[{"id":60522,"kind":"person","name":"Bitting Kurt","position":1,"cik":"0001769761","reported_name":"Bitting Kurt","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"See Remarks"}}],"security":"Common Stock","published_at":"2021-01-21T01:46:52.000Z","date":"2021-01-18","kind":"grant","acquired":true,"shares":48733,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":121609,"source":{"system":"sec-edgar","filing":"0000899243-21-002589","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1708035/000089924321002589/doc4.xml","form_type":"4"}},{"id":2913253,"issuer":{"id":4897,"kind":"organization","name":"Ecovyst Inc.","symbol":"ECVT"},"owners":[{"id":60522,"kind":"person","name":"Bitting Kurt","position":1,"cik":"0001769761","reported_name":"Bitting Kurt","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"See Remarks"}}],"security":"Common Stock","published_at":"2021-01-08T02:13:01.000Z","date":"2021-01-05","kind":"tax_withholding","acquired":false,"shares":1677,"price":14.107,"value":23657.439,"ownership":{"direct":true},"balance_after":72876,"source":{"system":"sec-edgar","filing":"0000899243-21-001027","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1708035/000089924321001027/doc4.xml","form_type":"4"}},{"id":3011314,"issuer":{"id":4897,"kind":"organization","name":"Ecovyst Inc.","symbol":"ECVT"},"owners":[{"id":60522,"kind":"person","name":"Bitting Kurt","position":1,"cik":"0001769761","reported_name":"Bitting Kurt","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"See Remarks"}}],"security":"Common Stock","published_at":"2020-10-06T21:40:09.000Z","date":"2020-10-02","kind":"tax_withholding","acquired":false,"shares":3826,"price":10.38,"value":39713.88,"ownership":{"direct":true},"balance_after":74553,"source":{"system":"sec-edgar","filing":"0000899243-20-027636","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1708035/000089924320027636/doc4.xml","form_type":"4"}},{"id":3305013,"issuer":{"id":4897,"kind":"organization","name":"Ecovyst Inc.","symbol":"ECVT"},"owners":[{"id":60522,"kind":"person","name":"Bitting Kurt","position":1,"cik":"0001769761","reported_name":"Bitting Kurt","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"See Remarks"}}],"security":"Common Stock","published_at":"2020-01-23T01:53:42.000Z","date":"2020-01-20","kind":"grant","acquired":true,"shares":22516,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":78379,"source":{"system":"sec-edgar","filing":"0000899243-20-001738","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1708035/000089924320001738/doc4.xml","form_type":"4"}},{"id":3315870,"issuer":{"id":4897,"kind":"organization","name":"Ecovyst Inc.","symbol":"ECVT"},"owners":[{"id":60522,"kind":"person","name":"Bitting Kurt","position":1,"cik":"0001769761","reported_name":"Bitting Kurt","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"See Remarks"}}],"security":"Common Stock","published_at":"2020-01-08T00:21:34.000Z","date":"2020-01-05","kind":"tax_withholding","acquired":false,"shares":2404,"price":16.605,"value":39918.42,"ownership":{"direct":true},"balance_after":55863,"source":{"system":"sec-edgar","filing":"0000899243-20-000777","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1708035/000089924320000777/doc4.xml","form_type":"4"}},{"id":3397101,"issuer":{"id":4897,"kind":"organization","name":"Ecovyst Inc.","symbol":"ECVT"},"owners":[{"id":60522,"kind":"person","name":"Bitting Kurt","position":1,"cik":"0001769761","reported_name":"Bitting Kurt","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"See Remarks"}}],"security":"Common Stock","published_at":"2019-10-04T20:43:35.000Z","date":"2019-10-02","kind":"tax_withholding","acquired":false,"shares":3826,"price":15.825,"value":60546.45,"ownership":{"direct":true},"balance_after":58267,"source":{"system":"sec-edgar","filing":"0000899243-19-025116","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1708035/000089924319025116/doc4.xml","form_type":"4"}},{"id":3596581,"issuer":{"id":4897,"kind":"organization","name":"Ecovyst Inc.","symbol":"ECVT"},"owners":[{"id":60522,"kind":"person","name":"Bitting Kurt","position":1,"cik":"0001769761","reported_name":"Bitting Kurt","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"See Remarks"}}],"security":"Common Stock","published_at":"2019-03-13T21:17:18.000Z","date":"2019-03-11","kind":"grant","acquired":true,"shares":24335,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":62093,"source":{"system":"sec-edgar","filing":"0000899243-19-007560","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1708035/000089924319007560/doc4.xml","form_type":"4"}}]}