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On August 20, 2026, 5,017 shares of Common Stock of the Issuer (\"Shares\") beneficially owned by the Reporting Person but held in the name of Citibank N.A., pursuant to an escrow agreement in order to secure the Reporting Person's indemnification obligations related to the Issuer's acquisition of Global Houghton Ltd., were released from escrow to the Issuer in order to satisfy such indemnification obligations and 3,905 Shares were released from escrow to the Reporting Person as such Shares were no longer needed to secure indemnification obligations."},{"field":"kind","element":"transactionCoding","label":"F2","text":"Following such escrow release, the Reporting Person continues to (i) directly beneficially own 3,905 Shares and (ii) indirectly beneficially own 3,635,112 Shares, which are owned by QH Hungary, for a total direct and indirect beneficial ownership of 3,639,017 Shares by the Reporting Person."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"QH Hungary Holdings Limited (\"QH Hungary\") is a wholly owned subsidiary of the Reporting Person. On August 20, 2026, 5,017 shares of Common Stock of the Issuer (\"Shares\") beneficially owned by the Reporting Person but held in the name of Citibank N.A., pursuant to an escrow agreement in order to secure the Reporting Person's indemnification obligations related to the Issuer's acquisition of Global Houghton Ltd., were released from escrow to the Issuer in order to satisfy such indemnification obligations and 3,905 Shares were released from escrow to the Reporting Person as such Shares were no longer needed to secure indemnification obligations."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Following such escrow release, the Reporting Person continues to (i) directly beneficially own 3,905 Shares and (ii) indirectly beneficially own 3,635,112 Shares, which are owned by QH Hungary, for a total direct and indirect beneficial ownership of 3,639,017 Shares by the Reporting Person."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F1","text":"QH Hungary Holdings Limited (\"QH Hungary\") is a wholly owned subsidiary of the Reporting Person. On August 20, 2026, 5,017 shares of Common Stock of the Issuer (\"Shares\") beneficially owned by the Reporting Person but held in the name of Citibank N.A., pursuant to an escrow agreement in order to secure the Reporting Person's indemnification obligations related to the Issuer's acquisition of Global Houghton Ltd., were released from escrow to the Issuer in order to satisfy such indemnification obligations and 3,905 Shares were released from escrow to the Reporting Person as such Shares were no longer needed to secure indemnification obligations."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F2","text":"Following such escrow release, the Reporting Person continues to (i) directly beneficially own 3,905 Shares and (ii) indirectly beneficially own 3,635,112 Shares, which are owned by QH Hungary, for a total direct and indirect beneficial ownership of 3,639,017 Shares by the Reporting Person."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"QH Hungary Holdings Limited (\"QH Hungary\") is a wholly owned subsidiary of the Reporting Person. On August 20, 2026, 5,017 shares of Common Stock of the Issuer (\"Shares\") beneficially owned by the Reporting Person but held in the name of Citibank N.A., pursuant to an escrow agreement in order to secure the Reporting Person's indemnification obligations related to the Issuer's acquisition of Global Houghton Ltd., were released from escrow to the Issuer in order to satisfy such indemnification obligations and 3,905 Shares were released from escrow to the Reporting Person as such Shares were no longer needed to secure indemnification obligations."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Following such escrow release, the Reporting Person continues to (i) directly beneficially own 3,905 Shares and (ii) indirectly beneficially own 3,635,112 Shares, which are owned by QH Hungary, for a total direct and indirect beneficial ownership of 3,639,017 Shares by the Reporting Person."}],"balance_after":3639017,"source":{"system":"sec-edgar","filing":"0001104659-26-100397","document":"tm2623898-2_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/81362/000110465926100397/tm2623898-2_4seq1.xml","form_type":"4"}},{"id":691519,"issuer":{"id":4278,"kind":"organization","name":"QUAKER CHEMICAL CORP"},"owners":[{"id":24875,"kind":"person","name":"Bijlani Jeewat","position":1,"cik":"0001783821","reported_name":"Bijlani Jeewat","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP,  Glob. 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The shares reported were forfeited in connection with the resolution of remaining indemnification claims and release of the escrow."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"Reported price is the volume-weighted average price used in calculations made under the escrow agreement."}],"balance_after":6741,"source":{"system":"sec-edgar","filing":"0001783821-26-000007","document":"wk-form4_1786481663.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/81362/000178382126000007/wk-form4_1786481663.xml","form_type":"4"}},{"id":694914,"issuer":{"id":4278,"kind":"organization","name":"QUAKER CHEMICAL CORP"},"owners":[{"id":26046,"kind":"person","name":"Osborne William H","position":1,"cik":"0001445187","reported_name":"Osborne William H","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-08-06T20:14:40.000Z","date":"2026-08-04","kind":"sale","planned":false,"acquired":false,"shares":600,"price":168.31,"value":100986.0,"ownership":{"direct":true},"balance_after":616,"source":{"system":"sec-edgar","filing":"0001445187-26-000005","document":"wk-form4_1786047277.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/81362/000144518726000005/wk-form4_1786047277.xml","form_type":"4"}},{"id":735464,"issuer":{"id":4278,"kind":"organization","name":"QUAKER CHEMICAL CORP"},"owners":[{"id":37516,"kind":"person","name":"Coler Thomas","position":1,"cik":"0002024882","reported_name":"Coler Thomas","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP, CFO"}}],"security":"Dividend Equivalent Rights","published_at":"2026-06-17T20:11:36.000Z","date":"2026-06-15","kind":"exercise","planned":false,"acquired":false,"shares":68,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"Dividend equivalent rights (DERs) accrued on reporting person's RSUs granted on June 15, 2024. 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March 17, 2026, the Reporting Person filed a Form 4 that erroneously reported 297 time-based Restricted Stock Units (\"RSUs\") acquired under the Company's Long-Term Performance Incentive Plan. As reported in this amendment, the correct number of RSUs acquired was 445.  RSUs represent a contingent right to receive one share of KWR common stock, and Dividend Equivalent Rights accrue when and as dividends are paid on KWR common stock.  The RSUs will vest in three annual installments beginning on March 15, 2027."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"On March 17, 2026, the Reporting Person filed a Form 4 that erroneously reported 297 time-based Restricted Stock Units (\"RSUs\") acquired under the Company's Long-Term Performance Incentive Plan. As reported in this amendment, the correct number of RSUs acquired was 445.  RSUs represent a contingent right to receive one share of KWR common stock, and Dividend Equivalent Rights accrue when and as dividends are paid on KWR common stock.  The RSUs will vest in three annual installments beginning on March 15, 2027."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"On March 17, 2026, the Reporting Person filed a Form 4 that erroneously reported 297 time-based Restricted Stock Units (\"RSUs\") acquired under the Company's Long-Term Performance Incentive Plan. As reported in this amendment, the correct number of RSUs acquired was 445.  RSUs represent a contingent right to receive one share of KWR common stock, and Dividend Equivalent Rights accrue when and as dividends are paid on KWR common stock.  The RSUs will vest in three annual installments beginning on March 15, 2027."}],"balance_after":445,"derivative":{"underlying":"Common Stock","underlying_shares":445},"source":{"system":"sec-edgar","filing":"0002104522-26-000011","document":"wk-form4a_1775074451.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/81362/000210452226000011/wk-form4a_1775074451.xml","form_type":"4/A","original_submission_date":"2026-03-17"}},{"id":823742,"issuer":{"id":4278,"kind":"organization","name":"QUAKER CHEMICAL CORP"},"owners":[{"id":54868,"kind":"person","name":"Frodl Andre","position":1,"cik":"0002089257","reported_name":"Frodl Andre","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"VP, R&D-Metals & Metalworking"}}],"security":"Restricted Stock Units","published_at":"2026-04-01T20:12:57.000Z","date":"2026-03-15","kind":"grant","planned":false,"acquired":true,"shares":724,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"On March 17, 2026, the Reporting Person filed a Form 4 that erroneously reported 371 time-based Restricted Stock Units (\"RSUs\") acquired under the Company's Long-Term Performance Incentive Plan. As reported in this amendment, the correct number of RSUs acquired was 724.  RSUs represent a contingent right to receive one share of KWR common stock, and Dividend Equivalent Rights accrue when and as dividends are paid on KWR common stock.  The RSUs will vest in three annual installments beginning on March 15, 2027."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"On March 17, 2026, the Reporting Person filed a Form 4 that erroneously reported 371 time-based Restricted Stock Units (\"RSUs\") acquired under the Company's Long-Term Performance Incentive Plan. As reported in this amendment, the correct number of RSUs acquired was 724.  RSUs represent a contingent right to receive one share of KWR common stock, and Dividend Equivalent Rights accrue when and as dividends are paid on KWR common stock.  The RSUs will vest in three annual installments beginning on March 15, 2027."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"On March 17, 2026, the Reporting Person filed a Form 4 that erroneously reported 371 time-based Restricted Stock Units (\"RSUs\") acquired under the Company's Long-Term Performance Incentive Plan. As reported in this amendment, the correct number of RSUs acquired was 724.  RSUs represent a contingent right to receive one share of KWR common stock, and Dividend Equivalent Rights accrue when and as dividends are paid on KWR common stock.  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Each RSU represents a contingent right to receive one share of KWR common stock and DERs accrue with respect to these RSUs when and as dividends are paid on KWR common stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F8","text":"Time-based RSUs granted under the Company's Long-Term Performance Incentive Plan, which will vest in three annual installments beginning on March 15, 2027. Each RSU represents a contingent right to receive one share of KWR common stock and DERs accrue with respect to these RSUs when and as dividends are paid on KWR common stock."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F8","text":"Time-based RSUs granted under the Company's Long-Term Performance Incentive Plan, which will vest in three annual installments beginning on March 15, 2027. 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