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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":343532.693,"source":{"system":"sec-edgar","filing":"0000899243-22-027990","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1708035/000089924322027990/doc4.xml","form_type":"4"}},{"id":2259357,"issuer":{"id":4897,"kind":"organization","name":"Ecovyst Inc.","symbol":"ECVT"},"owners":[{"id":124806,"kind":"person","name":"Schneberger Thomas","position":1,"cik":"0001752725","reported_name":"Schneberger Thomas","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"See Remarks"}}],"security":"Common Stock","published_at":"2022-05-23T20:30:12.000Z","date":"2022-05-20","kind":"purchase","acquired":true,"shares":5000,"price":9.8593,"value":49296.5,"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 $9.85 to $9.86, 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 within the range set forth in footnote (1) to this Form 4."}],"balance_after":332143,"source":{"system":"sec-edgar","filing":"0000899243-22-019210","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1708035/000089924322019210/doc4.xml","form_type":"4"}},{"id":2431756,"issuer":{"id":4897,"kind":"organization","name":"Ecovyst Inc.","symbol":"ECVT"},"owners":[{"id":124806,"kind":"person","name":"Schneberger Thomas","position":1,"cik":"0001752725","reported_name":"Schneberger Thomas","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"See Remarks"}}],"security":"Common Stock","published_at":"2022-01-19T21:24:23.000Z","date":"2022-01-17","kind":"grant","acquired":true,"shares":145773,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":327143,"source":{"system":"sec-edgar","filing":"0000899243-22-002411","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1708035/000089924322002411/doc4.xml","form_type":"4"}},{"id":2431755,"issuer":{"id":4897,"kind":"organization","name":"Ecovyst Inc.","symbol":"ECVT"},"owners":[{"id":124806,"kind":"person","name":"Schneberger Thomas","position":1,"cik":"0001752725","reported_name":"Schneberger Thomas","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":"2022-01-19T21:24:23.000Z","date":"2022-01-17","kind":"grant","acquired":true,"shares":72887,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":181370,"source":{"system":"sec-edgar","filing":"0000899243-22-002411","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1708035/000089924322002411/doc4.xml","form_type":"4"}},{"id":2439639,"issuer":{"id":4897,"kind":"organization","name":"Ecovyst Inc.","symbol":"ECVT"},"owners":[{"id":124806,"kind":"person","name":"Schneberger Thomas","position":1,"cik":"0001752725","reported_name":"Schneberger Thomas","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"See Remarks"}}],"security":"Common Stock","published_at":"2022-01-07T21:30:34.000Z","date":"2022-01-05","kind":"tax_withholding","acquired":false,"shares":1090,"price":10.27,"value":11194.3,"ownership":{"direct":true},"balance_after":108483,"source":{"system":"sec-edgar","filing":"0000899243-22-001368","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1708035/000089924322001368/doc4.xml","form_type":"4"}},{"id":3610311,"issuer":{"id":95365,"kind":"organization","name":"Livent Corp.","symbol":"LTHM"},"owners":[{"id":124806,"kind":"person","name":"Schneberger Thomas","position":1,"cik":"0001752725","reported_name":"Schneberger Thomas","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Vice President and COO"}}],"security":"Stock Option (Right to Buy)","published_at":"2019-03-05T16:18:53.000Z","date":"2019-03-01","kind":"grant","acquired":true,"shares":25253,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F4","text":"Represents the grant of stock options to purchase Livent Common Stock (\"Livent Options\") upon the conversion of stock options to purchase FMC Common Stock (\"FMC Options\"), in accordance with the terms of the EMA and the anti-dilution adjustment provisions under the FMC Plan, in connection with the Distribution. The Livent Options were granted pursuant to the Livent Plan in a manner intended to preserve the aggregate intrinsic value of the awards, and are generally subject to the same terms and conditions (including vesting, exercise and expiration schedules) as applicable to the corresponding FMC Options."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"Represents the grant of stock options to purchase Livent Common Stock (\"Livent Options\") upon the conversion of stock options to purchase FMC Common Stock (\"FMC Options\"), in accordance with the terms of the EMA and the anti-dilution adjustment provisions under the FMC Plan, in connection with the Distribution. The Livent Options were granted pursuant to the Livent Plan in a manner intended to preserve the aggregate intrinsic value of the awards, and are generally subject to the same terms and conditions (including vesting, exercise and expiration schedules) as applicable to the corresponding FMC Options."}],"balance_after":25253,"derivative":{"exercise_price":12.26,"exercise_date":"2021-02-15","expiration_date":"2028-02-15","underlying":"Common Stock","underlying_shares":25253},"source":{"system":"sec-edgar","filing":"0000950103-19-003078","document":"dp103211_4-schneberger.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1742924/000095010319003078/dp103211_4-schneberger.xml","form_type":"4"}},{"id":3610310,"issuer":{"id":95365,"kind":"organization","name":"Livent Corp.","symbol":"LTHM"},"owners":[{"id":124806,"kind":"person","name":"Schneberger Thomas","position":1,"cik":"0001752725","reported_name":"Schneberger Thomas","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Vice President and COO"}}],"security":"Stock Option (Right to Buy)","published_at":"2019-03-05T16:18:53.000Z","date":"2019-03-01","kind":"grant","acquired":true,"shares":41389,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F4","text":"Represents the grant of stock options to purchase Livent Common Stock (\"Livent Options\") upon the conversion of stock options to purchase FMC Common Stock (\"FMC Options\"), in accordance with the terms of the EMA and the anti-dilution adjustment provisions under the FMC Plan, in connection with the Distribution. The Livent Options were granted pursuant to the Livent Plan in a manner intended to preserve the aggregate intrinsic value of the awards, and are generally subject to the same terms and conditions (including vesting, exercise and expiration schedules) as applicable to the corresponding FMC Options."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"Represents the grant of stock options to purchase Livent Common Stock (\"Livent Options\") upon the conversion of stock options to purchase FMC Common Stock (\"FMC Options\"), in accordance with the terms of the EMA and the anti-dilution adjustment provisions under the FMC Plan, in connection with the Distribution. The Livent Options were granted pursuant to the Livent Plan in a manner intended to preserve the aggregate intrinsic value of the awards, and are generally subject to the same terms and conditions (including vesting, exercise and expiration schedules) as applicable to the corresponding FMC Options."}],"balance_after":41389,"derivative":{"exercise_price":8.29,"exercise_date":"2020-02-27","expiration_date":"2027-02-27","underlying":"Common Stock","underlying_shares":41389},"source":{"system":"sec-edgar","filing":"0000950103-19-003078","document":"dp103211_4-schneberger.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1742924/000095010319003078/dp103211_4-schneberger.xml","form_type":"4"}},{"id":3610309,"issuer":{"id":95365,"kind":"organization","name":"Livent Corp.","symbol":"LTHM"},"owners":[{"id":124806,"kind":"person","name":"Schneberger 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and FMC (\"EMA\") and the anti-dilution adjustment provisions under the FMC Incentive Compensation and Stock Plan (\"FMC Plan\"), in connection with the prorata spinoff distribution (\"Distribution\") by FMC of all of its shares of Livent Common Stock to the holders of record of FMC Common Stock on February 25, 2019 (\"Record Date\")."},{"field":"shares","element":"transactionShares","label":"F2","text":"The Livent RSUs were granted pursuant to the Livent Corporation Incentive Compensation and Stock Plan (\"Livent Plan\") in a manner intended to preserve the aggregate intrinsic value of the awards, and are generally subject to the same terms and conditions (including vesting and payment schedules) as applicable to the corresponding FMC restricted stock units."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Represents the grant of restricted stock units (\"Livent RSUs\") with respect to shares of common stock of Livent Corporation (\"Livent\"), par value $0.001 per share (\"Livent Common Stock\"), upon the conversion of restricted stock units with respect to shares of common stock of FMC Corporation (\"FMC\"), par value $0.10 per share (\"FMC Common Stock\"), held by the Reporting Person as of March 1, 2019, in accordance with the terms of the Amended and Restated Employee Matters Agreement, dated as of February 4, 2019, by and between Livent and FMC (\"EMA\") and the anti-dilution adjustment provisions under the FMC Incentive Compensation and Stock Plan (\"FMC Plan\"), in connection with the prorata spinoff distribution (\"Distribution\") by FMC of all of its shares of Livent Common Stock to the holders of record of FMC Common Stock on February 25, 2019 (\"Record Date\")."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The Livent RSUs were granted pursuant to the Livent Corporation Incentive Compensation and Stock Plan (\"Livent Plan\") in a manner intended to preserve the aggregate intrinsic value of the awards, and are generally subject to the same terms and conditions (including vesting and payment schedules) as applicable to the corresponding FMC restricted stock units."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"Reflects shares of Livent Common Stock received in connection with the Distribution in respect of the shares of FMC Common Stock held as of the Record Date."}],"balance_after":71683,"source":{"system":"sec-edgar","filing":"0000950103-19-003078","document":"dp103211_4-schneberger.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1742924/000095010319003078/dp103211_4-schneberger.xml","form_type":"4"}},{"id":3791723,"issuer":{"id":95365,"kind":"organization","name":"Livent Corp.","symbol":"LTHM"},"owners":[{"id":124806,"kind":"person","name":"Schneberger Thomas","position":1,"cik":"0001752725","reported_name":"Schneberger 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The stock options are scheduled to vest and become exercisable 50% on each of the third and fourth anniversaries of the date of grant, subject to the terms of the Plan and the applicable award agreement issued thereunder. The stock options will expire on the tenth anniversary of the date of grant."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"Reflects the grant of stock options to purchase shares of common stock of the Issuer under the Plan. The stock options are scheduled to vest and become exercisable 50% on each of the third and fourth anniversaries of the date of grant, subject to the terms of the Plan and the applicable award agreement issued thereunder. The stock options will expire on the tenth anniversary of the date of grant."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"Reflects the grant of stock options to purchase shares of common stock of the Issuer under the Plan. The stock options are scheduled to vest and become exercisable 50% on each of the third and fourth anniversaries of the date of grant, subject to the terms of the Plan and the applicable award agreement issued thereunder. The stock options will expire on the tenth anniversary of the date of grant."}],"balance_after":85715,"derivative":{"exercise_price":17,"underlying":"Common Stock","underlying_shares":85715},"source":{"system":"sec-edgar","filing":"0000950103-18-011973","document":"dp96876_4-schneberger.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1742924/000095010318011973/dp96876_4-schneberger.xml","form_type":"4"}},{"id":3791722,"issuer":{"id":95365,"kind":"organization","name":"Livent Corp.","symbol":"LTHM"},"owners":[{"id":124806,"kind":"person","name":"Schneberger Thomas","position":1,"cik":"0001752725","reported_name":"Schneberger Thomas","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Vice President and COO"}}],"security":"Common Stock","published_at":"2018-10-12T16:22:28.000Z","date":"2018-10-10","kind":"grant","acquired":true,"shares":26471,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Reflects the grant of restricted stock units under the Issuer's Incentive Compensation and Stock Plan (the \"Plan\"), which are scheduled to vest 50% on each of the third and fourth anniversaries of the date of grant, subject to the terms of the Plan and the applicable award agreement issued thereunder."}],"balance_after":26471,"source":{"system":"sec-edgar","filing":"0000950103-18-011973","document":"dp96876_4-schneberger.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1742924/000095010318011973/dp96876_4-schneberger.xml","form_type":"4"}}]}