KWR

SEC source: 0001104659-26-100397 · tm2623898-2_4seq1.xml · nonDerivative · entry 1

Gulf Hungary Holding Korlatolt Felelossegu Tarsasag · CIK 0001783455 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · Indirect is by QH Hungary Holdings Limited

Disclosed balance after: 3,639,017

F1 · kind: 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.

F2 · kind: 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.

F1 · balance_after: 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.

F2 · balance_after: 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.

F1 · ownership.direct: 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.

F2 · ownership.direct: 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.

F1 · ownership.nature: 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.

F2 · ownership.nature: 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.

SEC source: 0001783821-26-000007 · wk-form4_1786481663.xml · nonDerivative · entry 1

Bijlani Jeewat · CIK 0001783821 · EVP, Glob. Spec. & CGO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,741

F1 · shares: Certain shares beneficially owned by reporting person were escrowed to secure sellers' indemnification obligations related to the Issuer's acquisition of Global Houghton Ltd. The shares reported were forfeited in connection with the resolution of remaining indemnification claims and release of the escrow.

F2 · price: Reported price is the volume-weighted average price used in calculations made under the escrow agreement.

SEC source: 0001445187-26-000005 · wk-form4_1786047277.xml · nonDerivative · entry 1

Osborne William H · CIK 0001445187 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 616

SEC source: 0002024882-26-000005 · wk-form4_1781727093.xml · derivative · entry 5

Coler Thomas · CIK 0002024882 · EVP, CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 68 shares

Expires 2026-06-15

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: Dividend equivalent rights (DERs) accrued on reporting person's RSUs granted on June 15, 2024. The rights accrued when and as dividends were paid on KWR common stock. This Form 4 reports the settlement of DERs in connection with the vesting of RSUs on June 15, 2026. Each DER was the economic equivalent of one share of KWR common stock.

F2 · price: Dividend equivalent rights (DERs) accrued on reporting person's RSUs granted on June 15, 2024. The rights accrued when and as dividends were paid on KWR common stock. This Form 4 reports the settlement of DERs in connection with the vesting of RSUs on June 15, 2026. Each DER was the economic equivalent of one share of KWR common stock.

F2 · derivative.exercise_date: Dividend equivalent rights (DERs) accrued on reporting person's RSUs granted on June 15, 2024. The rights accrued when and as dividends were paid on KWR common stock. This Form 4 reports the settlement of DERs in connection with the vesting of RSUs on June 15, 2026. Each DER was the economic equivalent of one share of KWR common stock.

SEC source: 0002024882-26-000005 · wk-form4_1781727093.xml · derivative · entry 4

Coler Thomas · CIK 0002024882 · EVP, CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 2,352 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Restricted stock units (RSUs) convert into common stock on a one-for-one basis.

F4 · derivative.exercise_date: On June 15, 2024, the reporting person was granted 2,352 time-based RSUs, vesting 100% on June 15, 2026.

F4 · derivative.expiration_date: On June 15, 2024, the reporting person was granted 2,352 time-based RSUs, vesting 100% on June 15, 2026.

SEC source: 0002024882-26-000005 · wk-form4_1781727093.xml · nonDerivative · entry 3

Coler Thomas · CIK 0002024882 · EVP, CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,157

F3 · shares: Shares surrendered by reporting person to satisfy withholding tax obligation upon vesting of restricted stock units previously granted under the Company's Long-Term Performance Incentive Plan.

SEC source: 0002024882-26-000005 · wk-form4_1781727093.xml · nonDerivative · entry 2

Coler Thomas · CIK 0002024882 · EVP, CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,898

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · price: Dividend equivalent rights (DERs) accrued on reporting person's RSUs granted on June 15, 2024. The rights accrued when and as dividends were paid on KWR common stock. This Form 4 reports the settlement of DERs in connection with the vesting of RSUs on June 15, 2026. Each DER was the economic equivalent of one share of KWR common stock.

SEC source: 0002024882-26-000005 · wk-form4_1781727093.xml · nonDerivative · entry 1

Coler Thomas · CIK 0002024882 · EVP, CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,830

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Restricted stock units (RSUs) convert into common stock on a one-for-one basis.

SEC source: 0001994178-26-000002 · wk-form4_1780443402.xml · derivative · entry 6

Foufopoulos - De Ridder Lucrece · CIK 0001994178 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 975

Underlying: Common Stock · 975 shares

Expires not disclosed

F5 · derivative.exercise_price: Time-based restricted stock units granted under the Company's Long-Term Performance Incentive Plan to Quaker Houghton's non-management directors as part of their 2026 compensation. Each restricted stock unit represents a contingent right to receive one share of KWR common stock.

F6 · shares: The restricted stock units vest 100% on May 31, 2027. Dividend equivalent rights accrue with respect to these restricted stock units when and as dividends are paid on KWR's common stock.

F6 · derivative.exercise_date: The restricted stock units vest 100% on May 31, 2027. Dividend equivalent rights accrue with respect to these restricted stock units when and as dividends are paid on KWR's common stock.

F6 · derivative.expiration_date: The restricted stock units vest 100% on May 31, 2027. Dividend equivalent rights accrue with respect to these restricted stock units when and as dividends are paid on KWR's common stock.

SEC source: 0001434812-26-000002 · wk-form4_1780433472.xml · derivative · entry 6

DOUGLAS MARK · CIK 0001434812 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 975

Underlying: Common Stock · 975 shares

Expires not disclosed

F5 · derivative.exercise_price: Time-based restricted stock units granted under the Company's Long-Term Performance Incentive Plan to Quaker Houghton's non-management directors as part of their 2026 compensation. Each restricted stock unit represents a contingent right to receive one share of KWR common stock.

F6 · shares: The restricted stock units vest 100% on May 31, 2027. Dividend equivalent rights accrue with respect to these restricted stock units when and as dividends are paid to KWR's common stock.

F6 · derivative.exercise_date: The restricted stock units vest 100% on May 31, 2027. Dividend equivalent rights accrue with respect to these restricted stock units when and as dividends are paid to KWR's common stock.

F6 · derivative.expiration_date: The restricted stock units vest 100% on May 31, 2027. Dividend equivalent rights accrue with respect to these restricted stock units when and as dividends are paid to KWR's common stock.

SEC source: 0001434812-26-000002 · wk-form4_1780433472.xml · nonDerivative · entry 3

DOUGLAS MARK · CIK 0001434812 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,278

F3 · shares: Grant of stock by the Company to provide full payment of the annual chairperson retainer (having a value of $110,000) for the 2026-2027 Board year. Award is fully vested as of the date of grant.

SEC source: 0001646159-26-000002 · wk-form4_1780433135.xml · derivative · entry 6

Shaller Russell · CIK 0001646159 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 975

Underlying: Common Stock · 975 shares

Expires not disclosed

F5 · derivative.exercise_price: Time-based restricted stock units granted under the Company's Long-Term Performance Incentive Plan to Quaker Houghton's non-management directors as part of their 2026 compensation. Each restricted stock unit represents a contingent right to receive one share of KWR common stock.

F6 · shares: The restricted stock units vest 100% on May 31, 2027. Dividend equivalent rights accrue with respect to these restricted stock units when and as dividends are paid on KWR's common stock.

F6 · derivative.exercise_date: The restricted stock units vest 100% on May 31, 2027. Dividend equivalent rights accrue with respect to these restricted stock units when and as dividends are paid on KWR's common stock.

F6 · derivative.expiration_date: The restricted stock units vest 100% on May 31, 2027. Dividend equivalent rights accrue with respect to these restricted stock units when and as dividends are paid on KWR's common stock.

SEC source: 0001646159-26-000002 · wk-form4_1780433135.xml · nonDerivative · entry 3

Shaller Russell · CIK 0001646159 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,045

F3 · shares: Reflects 75% of the Director's annual retainer paid in shares pursuant to the 2023 Director Stock Ownership Plan.

SEC source: 0001524598-26-000005 · wk-form4_1780433266.xml · derivative · entry 6

West Fay · CIK 0001524598 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 975

Underlying: Common Stock · 975 shares

Expires not disclosed

F4 · derivative.exercise_price: Time-based restricted stock units granted under the Company's Long-Term Performance Incentive Plan to Quaker Houghton's non-management directors as part of their 2026 compensation. Each restricted stock unit represents a contingent right to receive one share of KWR common stock.

F5 · shares: The restricted stock units vest 100% on May 31, 2027. Dividend equivalent rights accrue with respect to these restricted stock units when and as dividends are paid to KWR's common stock.

F5 · derivative.exercise_date: The restricted stock units vest 100% on May 31, 2027. Dividend equivalent rights accrue with respect to these restricted stock units when and as dividends are paid to KWR's common stock.

F5 · derivative.expiration_date: The restricted stock units vest 100% on May 31, 2027. Dividend equivalent rights accrue with respect to these restricted stock units when and as dividends are paid to KWR's common stock.

SEC source: 0001445187-26-000002 · wk-form4_1780432914.xml · derivative · entry 6

Osborne William H · CIK 0001445187 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 975

Underlying: Common Stock · 975 shares

Expires not disclosed

F4 · derivative.exercise_price: Time-based restricted stock units granted under the Company's Long-Term Performance Incentive Plan to Quaker Houghton's non-management directors as part of their 2026 compensation. Each restricted stock unit represents a contingent right to receive one share of KWR common stock.

F5 · shares: The restricted stock units vest 100% on May 31, 2027. Dividend equivalent rights accrue with respect to these restricted stock units when and as dividends are paid on KWR's common stock.

F5 · derivative.exercise_date: The restricted stock units vest 100% on May 31, 2027. Dividend equivalent rights accrue with respect to these restricted stock units when and as dividends are paid on KWR's common stock.

F5 · derivative.expiration_date: The restricted stock units vest 100% on May 31, 2027. Dividend equivalent rights accrue with respect to these restricted stock units when and as dividends are paid on KWR's common stock.

SEC source: 0001783867-26-000002 · wk-form4_1780432743.xml · derivative · entry 5

Hinduja Sanjay · CIK 0001783867 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 975

Underlying: Common Stock · 975 shares

Expires not disclosed

F4 · derivative.exercise_price: Time-based restricted stock units granted under the Company's Long-Term Performance Incentive Plan to Quaker Houghton's non-management directors as part of their 2026 compensation. Each restricted stock unit represents a contingent right to receive one share of KWR common stock.

F5 · shares: The restricted stock units vest 100% on May 31, 2027. Dividend equivalent rights accrue with respect to these restricted stock units when and as dividends are paid on KWR's common stock.

F5 · derivative.exercise_date: The restricted stock units vest 100% on May 31, 2027. Dividend equivalent rights accrue with respect to these restricted stock units when and as dividends are paid on KWR's common stock.

F5 · derivative.expiration_date: The restricted stock units vest 100% on May 31, 2027. Dividend equivalent rights accrue with respect to these restricted stock units when and as dividends are paid on KWR's common stock.

SEC source: 0001811774-26-000002 · wk-form4_1780432620.xml · derivative · entry 5

Henry Charlotte C. · CIK 0001811774 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 975

Underlying: Common Stock · 975 shares

Expires not disclosed

F4 · derivative.exercise_price: Time-based restricted stock units granted under the Company's Long-Term Performance Incentive Plan to Quaker Houghton's non-management directors as part of their 2026 compensation. Each restricted stock unit represents a contingent right to receive one share of KWR common stock.

F5 · shares: The restricted stock units vest 100% on May 31, 2027. Dividend equivalent rights accrue with respect to these restricted stock units when and as dividends are paid on KWR's common stock.

F5 · derivative.exercise_date: The restricted stock units vest 100% on May 31, 2027. Dividend equivalent rights accrue with respect to these restricted stock units when and as dividends are paid on KWR's common stock.

F5 · derivative.expiration_date: The restricted stock units vest 100% on May 31, 2027. Dividend equivalent rights accrue with respect to these restricted stock units when and as dividends are paid on KWR's common stock.

SEC source: 0001061274-26-000002 · wk-form4_1780432471.xml · derivative · entry 5

FRISBY JEFFRY D · CIK 0001061274 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 975

Underlying: Common Stock · 975 shares

Expires not disclosed

F4 · derivative.exercise_price: Time-based restricted stock units granted under the Company's Long-Term Performance Incentive Plan to Quaker Houghton's non-management directors as part of their 2026 compensation. Each restricted stock unit represents a contingent right to receive one share of KWR common stock.

F5 · shares: The restricted stock units vest 100% on May 31, 2027. Dividend equivalent rights accrue with respect to these restricted stock units when and as dividends are paid on KWR's common stock.

F5 · derivative.exercise_date: The restricted stock units vest 100% on May 31, 2027. Dividend equivalent rights accrue with respect to these restricted stock units when and as dividends are paid on KWR's common stock.

F5 · derivative.expiration_date: The restricted stock units vest 100% on May 31, 2027. Dividend equivalent rights accrue with respect to these restricted stock units when and as dividends are paid on KWR's common stock.

SEC source: 0002024624-26-000002 · wk-form4_1780432129.xml · derivative · entry 6

BAKHSHI NANDITA · CIK 0002024624 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 975

Underlying: Common Stock · 975 shares

Expires not disclosed

F5 · derivative.exercise_price: Time-based restricted stock units granted under the Company's Long-Term Performance Incentive Plan to Quaker Houghton's non-management directors as part of their 2026 compensation. Each restricted stock unit represents a contingent right to receive one share of KWR common stock.

F6 · shares: The restricted stock units vest 100% on May 31, 2027. Dividend equivalent rights accrue with respect to these restricted stock units when and as dividends are paid on KWR's common stock.

F6 · derivative.exercise_date: The restricted stock units vest 100% on May 31, 2027. Dividend equivalent rights accrue with respect to these restricted stock units when and as dividends are paid on KWR's common stock.

F6 · derivative.expiration_date: The restricted stock units vest 100% on May 31, 2027. Dividend equivalent rights accrue with respect to these restricted stock units when and as dividends are paid on KWR's common stock.

SEC source: 0002024624-26-000002 · wk-form4_1780432129.xml · nonDerivative · entry 3

BAKHSHI NANDITA · CIK 0002024624 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,059

F3 · shares: Reflects 75% of the Director's annual retainer paid in shares pursuant to the 2023 Director Stock Ownership Plan.

SEC source: 0001994178-26-000004 · wk-form4_1780517825.xml · nonDerivative · entry 2

Foufopoulos - De Ridder Lucrece · CIK 0001994178 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,570

F2 · shares: Shares surrendered by reporting person to satisfy statutory withholding tax obligation in connection with shares issued on June 1, 2026 under the Director Stock Ownership Plan.

SEC source: 0001994178-26-000004 · wk-form4_1780517825.xml · nonDerivative · entry 1

Foufopoulos - De Ridder Lucrece · CIK 0001994178 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,694

F1 · shares: Reflects 75% of the Director's annual retainer paid in shares pursuant to the 2023 Director Stock Ownership Plan.

SEC source: 0001994178-26-000002 · wk-form4_1780443402.xml · derivative · entry 5

Foufopoulos - De Ridder Lucrece · CIK 0001994178 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 18 shares

Expires 2026-05-31

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: Settlement of dividend equivalent rights in connection with vesting of restricted stock unit. The rights accrued when and as dividends were paid on KWR common stock. Each dividend equivalent right was the economic equivalent of one share of KWR common stock.

F2 · price: Settlement of dividend equivalent rights in connection with vesting of restricted stock unit. The rights accrued when and as dividends were paid on KWR common stock. Each dividend equivalent right was the economic equivalent of one share of KWR common stock.

F2 · derivative.exercise_date: Settlement of dividend equivalent rights in connection with vesting of restricted stock unit. The rights accrued when and as dividends were paid on KWR common stock. Each dividend equivalent right was the economic equivalent of one share of KWR common stock.

SEC source: 0001994178-26-000002 · wk-form4_1780443402.xml · derivative · entry 4

Foufopoulos - De Ridder Lucrece · CIK 0001994178 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 1,198 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Restricted stock units convert into common stock on a one-for-one basis.

F4 · derivative.exercise_date: On June 1, 2025, the reporting person was granted time-based restricted stock units that vested 100% on May 31, 2026.

F4 · derivative.expiration_date: On June 1, 2025, the reporting person was granted time-based restricted stock units that vested 100% on May 31, 2026.

SEC source: 0001994178-26-000002 · wk-form4_1780443402.xml · nonDerivative · entry 3

Foufopoulos - De Ridder Lucrece · CIK 0001994178 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,281

F3 · shares: Shares surrendered by reporting person to satisfy statutory withholding tax obligation upon vesting of restricted stock units previously granted on June 1, 2025 under the Company's Long-Term Performance Incentive Plan.

SEC source: 0001994178-26-000002 · wk-form4_1780443402.xml · nonDerivative · entry 2

Foufopoulos - De Ridder Lucrece · CIK 0001994178 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,646

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · price: Settlement of dividend equivalent rights in connection with vesting of restricted stock unit. The rights accrued when and as dividends were paid on KWR common stock. Each dividend equivalent right was the economic equivalent of one share of KWR common stock.

SEC source: 0001994178-26-000002 · wk-form4_1780443402.xml · nonDerivative · entry 1

Foufopoulos - De Ridder Lucrece · CIK 0001994178 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,628

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Restricted stock units convert into common stock on a one-for-one basis.

SEC source: 0001434812-26-000002 · wk-form4_1780433472.xml · derivative · entry 5

DOUGLAS MARK · CIK 0001434812 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 18 shares

Expires 2026-05-31

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: Settlement of dividend equivalent rights in connection with vesting of restricted stock unit. The rights accrued when and as dividends were paid on KWR common stock. Each dividend equivalent right was the economic equivalent of one share of KWR common stock.

F2 · price: Settlement of dividend equivalent rights in connection with vesting of restricted stock unit. The rights accrued when and as dividends were paid on KWR common stock. Each dividend equivalent right was the economic equivalent of one share of KWR common stock.

F2 · derivative.exercise_date: Settlement of dividend equivalent rights in connection with vesting of restricted stock unit. The rights accrued when and as dividends were paid on KWR common stock. Each dividend equivalent right was the economic equivalent of one share of KWR common stock.

SEC source: 0001434812-26-000002 · wk-form4_1780433472.xml · derivative · entry 4

DOUGLAS MARK · CIK 0001434812 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 1,198 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Restricted stock units convert into common stock on a one-for-one basis.

F4 · derivative.exercise_date: On June 1, 2025, the reporting person was granted time-based restricted stock units that vested 100% on May 31, 2026.

F4 · derivative.expiration_date: On June 1, 2025, the reporting person was granted time-based restricted stock units that vested 100% on May 31, 2026.

SEC source: 0001434812-26-000002 · wk-form4_1780433472.xml · nonDerivative · entry 2

DOUGLAS MARK · CIK 0001434812 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,512

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · price: Settlement of dividend equivalent rights in connection with vesting of restricted stock unit. The rights accrued when and as dividends were paid on KWR common stock. Each dividend equivalent right was the economic equivalent of one share of KWR common stock.

SEC source: 0001434812-26-000002 · wk-form4_1780433472.xml · nonDerivative · entry 1

DOUGLAS MARK · CIK 0001434812 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,494

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Restricted stock units convert into common stock on a one-for-one basis.

SEC source: 0001646159-26-000002 · wk-form4_1780433135.xml · derivative · entry 5

Shaller Russell · CIK 0001646159 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 18 shares

Expires 2026-05-31

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: Settlement of dividend equivalent rights in connection with vesting of restricted stock unit. The rights accrued when and as dividends were paid on KWR common stock. Each dividend equivalent right was the economic equivalent of one share of KWR common stock.

F2 · price: Settlement of dividend equivalent rights in connection with vesting of restricted stock unit. The rights accrued when and as dividends were paid on KWR common stock. Each dividend equivalent right was the economic equivalent of one share of KWR common stock.

F2 · derivative.exercise_date: Settlement of dividend equivalent rights in connection with vesting of restricted stock unit. The rights accrued when and as dividends were paid on KWR common stock. Each dividend equivalent right was the economic equivalent of one share of KWR common stock.

SEC source: 0001646159-26-000002 · wk-form4_1780433135.xml · derivative · entry 4

Shaller Russell · CIK 0001646159 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 1,198 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Restricted stock units convert into common stock on a one-for-one basis.

F4 · derivative.exercise_date: On June 1, 2025, the reporting person was granted time-based restricted stock units that vested 100% on May 31, 2026.

F4 · derivative.expiration_date: On June 1, 2025, the reporting person was granted time-based restricted stock units that vested 100% on May 31, 2026.

SEC source: 0001646159-26-000002 · wk-form4_1780433135.xml · nonDerivative · entry 2

Shaller Russell · CIK 0001646159 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,632

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · price: Settlement of dividend equivalent rights in connection with vesting of restricted stock unit. The rights accrued when and as dividends were paid on KWR common stock. Each dividend equivalent right was the economic equivalent of one share of KWR common stock.

SEC source: 0001646159-26-000002 · wk-form4_1780433135.xml · nonDerivative · entry 1

Shaller Russell · CIK 0001646159 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,614

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Restricted stock units convert into common stock on a one-for-one basis.

SEC source: 0001524598-26-000005 · wk-form4_1780433266.xml · derivative · entry 5

West Fay · CIK 0001524598 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 18 shares

Expires 2026-05-31

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: Settlement of dividend equivalent rights in connection with vesting of restricted stock unit. The rights accrued when and as dividends were paid on KWR common stock. Each dividend equivalent right was the economic equivalent of one share of KWR common stock.

F2 · price: Settlement of dividend equivalent rights in connection with vesting of restricted stock unit. The rights accrued when and as dividends were paid on KWR common stock. Each dividend equivalent right was the economic equivalent of one share of KWR common stock.

F2 · derivative.exercise_date: Settlement of dividend equivalent rights in connection with vesting of restricted stock unit. The rights accrued when and as dividends were paid on KWR common stock. Each dividend equivalent right was the economic equivalent of one share of KWR common stock.

SEC source: 0001524598-26-000005 · wk-form4_1780433266.xml · derivative · entry 4

West Fay · CIK 0001524598 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 1,198 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Restricted stock units convert into common stock on a one-for-one basis.

F3 · derivative.exercise_date: On June 1, 2025, the reporting person was granted time-based restricted stock units that vested 100% on May 31, 2026.

F3 · derivative.expiration_date: On June 1, 2025, the reporting person was granted time-based restricted stock units that vested 100% on May 31, 2026.

SEC source: 0001524598-26-000005 · wk-form4_1780433266.xml · nonDerivative · entry 2

West Fay · CIK 0001524598 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,279

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · price: Settlement of dividend equivalent rights in connection with vesting of restricted stock unit. The rights accrued when and as dividends were paid on KWR common stock. Each dividend equivalent right was the economic equivalent of one share of KWR common stock.

SEC source: 0001524598-26-000005 · wk-form4_1780433266.xml · nonDerivative · entry 1

West Fay · CIK 0001524598 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,261

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Restricted stock units convert into common stock on a one-for-one basis.

SEC source: 0001445187-26-000002 · wk-form4_1780432914.xml · derivative · entry 5

Osborne William H · CIK 0001445187 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 18 shares

Expires 2026-05-31

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: Settlement of dividend equivalent rights in connection with vesting of restricted stock unit. The rights accrued when and as dividends were paid on KWR common stock. Each dividend equivalent right was the economic equivalent of one share of KWR common stock.

F2 · price: Settlement of dividend equivalent rights in connection with vesting of restricted stock unit. The rights accrued when and as dividends were paid on KWR common stock. Each dividend equivalent right was the economic equivalent of one share of KWR common stock.

F2 · derivative.exercise_date: Settlement of dividend equivalent rights in connection with vesting of restricted stock unit. The rights accrued when and as dividends were paid on KWR common stock. Each dividend equivalent right was the economic equivalent of one share of KWR common stock.

SEC source: 0001445187-26-000002 · wk-form4_1780432914.xml · derivative · entry 4

Osborne William H · CIK 0001445187 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 1,198 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Restricted stock units convert into common stock on a one-for-one basis.

F3 · derivative.exercise_date: On June 1, 2025, the reporting person was granted time-based restricted stock units that vested 100% on May 31, 2026.

F3 · derivative.expiration_date: On June 1, 2025, the reporting person was granted time-based restricted stock units that vested 100% on May 31, 2026.

SEC source: 0001445187-26-000002 · wk-form4_1780432914.xml · nonDerivative · entry 2

Osborne William H · CIK 0001445187 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,216

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · price: Settlement of dividend equivalent rights in connection with vesting of restricted stock unit. The rights accrued when and as dividends were paid on KWR common stock. Each dividend equivalent right was the economic equivalent of one share of KWR common stock.

SEC source: 0001445187-26-000002 · wk-form4_1780432914.xml · nonDerivative · entry 1

Osborne William H · CIK 0001445187 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,198

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Restricted stock units convert into common stock on a one-for-one basis.

SEC source: 0001783867-26-000002 · wk-form4_1780432743.xml · derivative · entry 4

Hinduja Sanjay · CIK 0001783867 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 18 shares

Expires 2026-05-31

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: Settlement of dividend equivalent rights in connection with vesting of restricted stock unit. The rights accrued when and as dividends were paid on KWR common stock. Each dividend equivalent right was the economic equivalent of one share of KWR common stock.

F2 · price: Settlement of dividend equivalent rights in connection with vesting of restricted stock unit. The rights accrued when and as dividends were paid on KWR common stock. Each dividend equivalent right was the economic equivalent of one share of KWR common stock.

F2 · derivative.exercise_date: Settlement of dividend equivalent rights in connection with vesting of restricted stock unit. The rights accrued when and as dividends were paid on KWR common stock. Each dividend equivalent right was the economic equivalent of one share of KWR common stock.

SEC source: 0001783867-26-000002 · wk-form4_1780432743.xml · derivative · entry 3

Hinduja Sanjay · CIK 0001783867 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 1,198 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Restricted stock units convert into common stock on a one-for-one basis.

F3 · derivative.exercise_date: On June 1, 2025, the reporting person was granted time-based restricted stock units that vested 100% on May 31, 2026.

F3 · derivative.expiration_date: On June 1, 2025, the reporting person was granted time-based restricted stock units that vested 100% on May 31, 2026.

SEC source: 0001783867-26-000002 · wk-form4_1780432743.xml · nonDerivative · entry 2

Hinduja Sanjay · CIK 0001783867 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,193

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · price: Settlement of dividend equivalent rights in connection with vesting of restricted stock unit. The rights accrued when and as dividends were paid on KWR common stock. Each dividend equivalent right was the economic equivalent of one share of KWR common stock.

SEC source: 0001783867-26-000002 · wk-form4_1780432743.xml · nonDerivative · entry 1

Hinduja Sanjay · CIK 0001783867 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,175

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Restricted stock units convert into common stock on a one-for-one basis.

SEC source: 0001811774-26-000002 · wk-form4_1780432620.xml · derivative · entry 4

Henry Charlotte C. · CIK 0001811774 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 18 shares

Expires 2026-05-31

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: Settlement of dividend equivalent rights in connection with vesting of restricted stock unit. The rights accrued when and as dividends were paid on KWR common stock. Each dividend equivalent right was the economic equivalent of one share of KWR common stock.

F2 · price: Settlement of dividend equivalent rights in connection with vesting of restricted stock unit. The rights accrued when and as dividends were paid on KWR common stock. Each dividend equivalent right was the economic equivalent of one share of KWR common stock.

F2 · derivative.exercise_date: Settlement of dividend equivalent rights in connection with vesting of restricted stock unit. The rights accrued when and as dividends were paid on KWR common stock. Each dividend equivalent right was the economic equivalent of one share of KWR common stock.

SEC source: 0001811774-26-000002 · wk-form4_1780432620.xml · derivative · entry 3

Henry Charlotte C. · CIK 0001811774 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 1,198 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Restricted stock units convert into common stock on a one-for-one basis.

F3 · derivative.exercise_date: On June 1, 2025, the reporting person was granted time-based restricted stock units that vested 100% on May 31, 2026.

F3 · derivative.expiration_date: On June 1, 2025, the reporting person was granted time-based restricted stock units that vested 100% on May 31, 2026.

SEC source: 0001811774-26-000002 · wk-form4_1780432620.xml · nonDerivative · entry 2

Henry Charlotte C. · CIK 0001811774 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,487

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · price: Settlement of dividend equivalent rights in connection with vesting of restricted stock unit. The rights accrued when and as dividends were paid on KWR common stock. Each dividend equivalent right was the economic equivalent of one share of KWR common stock.