NGVT

SEC source: 0002098263-26-000001 · wk-form4_1772589882.xml · nonDerivative · entry 4

Clontz Clarence Reid Jr. · CIK 0002098263 · SVP, Operations

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,250

F3 · shares: Shares withheld by the Company to satisfy tax withholding obligations related to the 2024 RSUs that vested.

SEC source: 0002098263-26-000001 · wk-form4_1772589882.xml · nonDerivative · entry 3

Clontz Clarence Reid Jr. · CIK 0002098263 · SVP, Operations

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,299

F3 · shares: Shares withheld by the Company to satisfy tax withholding obligations related to the 2024 RSUs that vested.

SEC source: 0002098263-26-000001 · wk-form4_1772589882.xml · nonDerivative · entry 2

Clontz Clarence Reid Jr. · CIK 0002098263 · SVP, Operations

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,563

F2 · shares: Shares withheld by the Company to satisfy tax withholding obligations related to the 2023 RSUs that vested.

SEC source: 0002017486-26-000001 · wk-form4_1772589500.xml · nonDerivative · entry 1

Fisher Ryan C. · CIK 0002017486 · SVP, Gen. Counsel & Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 19,835

F1 · shares: Grant of restricted stock units ("RSUs") pursuant to the Ingevity Corporation 2025 Omnibus Incentive Plan, which will vest in three equal installments on February 27, 2027, 2028, and 2029.

SEC source: 0001668926-26-000002 · wk-form4_1772589676.xml · nonDerivative · entry 1

PLATT PHILLIP JOHN · CIK 0001668926 · SVP, Finance & CAO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 31,019

F1 · shares: Grant of restricted stock units ("RSUs") pursuant to the Ingevity Corporation 2025 Omnibus Incentive Plan, which will vest in three equal installments on February 27, 2027, 2028, and 2029.

SEC source: 0001552446-26-000001 · wk-form4_1772588590.xml · nonDerivative · entry 1

DYER TERRANCE M · CIK 0001552446 · SVP, Chief HR Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,248

F1 · shares: Grant of restricted stock units ("RSUs") pursuant to the Ingevity Corporation 2025 Omnibus Incentive Plan, which will vest in three equal installments on February 27, 2027, 2028, and 2029.

SEC source: 0001436880-26-000002 · wk-form4_1772587808.xml · nonDerivative · entry 1

Li David H · CIK 0001436880 · Director · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 156,890

F1 · shares: Grant of restricted stock units pursuant to the Ingevity Corporation 2025 Omnibus Incentive Plan, which will vest in three equal installments on February 27, 2027, 2028, and 2029.

F2 · balance_after: Includes (i) 364 shares of Common Stock purchased pursuant to the Amended and Restated 2017 Ingevity Corporation Employee Stock Purchase Plan, as amended ("ESPP") for the purchase period of July 1, 2025 to September 30, 2025 (the "September ESPP Shares"), and (ii) 162 shares of Common Stock purchased pursuant to the ESPP for the purchase period of October 1, 2025 to December 31, 2025 (the "December ESPP Shares"). In accordance with the terms of the ESPP, the September ESPP Shares were purchased at a price equal to 85% of the closing price of Issuer's Common Stock on July 1, 2025 and the December ESPP Shares were purchased at a price equal to 85% of the closing price of the Issuer's Common Stock on October 1, 2025.

SEC source: 0002098263-26-000001 · wk-form4_1772589882.xml · nonDerivative · entry 1

Clontz Clarence Reid Jr. · CIK 0002098263 · SVP, Operations

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,706

F1 · shares: Grant of restricted stock units ("RSUs") pursuant to the Ingevity Corporation 2025 Omnibus Incentive Plan, which will vest in three equal installments on February 27, 2027, 2028, and 2029.

SEC source: 0002061647-26-000001 · wk-form4_1772588228.xml · nonDerivative · entry 1

Shukov Michael N. · CIK 0002061647 · SVP and Pres, APT

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,389

F1 · shares: Grant of restricted stock units pursuant to the Ingevity Corporation 2025 Omnibus Incentive Plan, which will vest in three equal installments on February 27, 2027, 2028, and 2029.

SEC source: 0002098230-26-000001 · wk-form4_1772588087.xml · nonDerivative · entry 1

Castillo Ruth · CIK 0002098230 · SVP and Pres, Perf Materials

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,688

F1 · shares: Grant of restricted stock units pursuant to the Ingevity Corporation 2025 Omnibus Incentive Plan, which will vest in three equal installments on February 27, 2027, 2028, and 2029.

SEC source: 0001653477-26-000019 · wk-form4_1772488031.xml · nonDerivative · entry 2

Fisher Ryan C. · CIK 0002017486 · SVP, Gen. Counsel & Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 15,393

F3 · shares: Shares withheld by the Company to satisfy tax withholding obligations related to the PSUs that vested on February 26, 2026.

SEC source: 0001653477-26-000019 · wk-form4_1772488031.xml · nonDerivative · entry 1

Fisher Ryan C. · CIK 0002017486 · SVP, Gen. Counsel & Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 15,487

F1 · shares: The Talent and Compensation Committee of the Company's board of directors certified the attainment of performance goals for certain performance-based restricted stock awards ("PSUs") effective February 26, 2026. The PSUs were settled with shares of common stock.

F2 · balance_after: Includes (i) 425 shares of Common Stock purchased pursuant to the Amended and Restated 2017 Ingevity Corporation Employee Stock Purchase Plan, as amended ("ESPP") for the purchase period of July 1, 2025 to September 30, 2025 (the "September ESPP Shares"), and (ii) 112 shares of Common Stock purchased pursuant to the ESPP for the purchase period of October 1, 2025 to December 31, 2025 (the "December ESPP Shares"). In accordance with the terms of the ESPP, the September ESPP Shares were purchased at a price equal to 85% of the closing price of Issuer's Common Stock on July 1, 2025 and the December ESPP Shares were purchased at a price equal to 85% of the closing price of the Issuer's Common Stock on October 1, 2025.

SEC source: 0001902378-26-000002 · wk-form4_1772488271.xml · nonDerivative · entry 2

White Richard Allen JR · CIK 0001902378 · SVP and Pres, Perf Chemicals

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 22,020

F3 · shares: Shares withheld by the Company to satisfy tax withholding obligations related to the PSUs that vested on February 26, 2026.

SEC source: 0001902378-26-000002 · wk-form4_1772488271.xml · nonDerivative · entry 1

White Richard Allen JR · CIK 0001902378 · SVP and Pres, Perf Chemicals

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 22,450

F1 · shares: The Talent and Compensation Committee of the Company's board of directors certified the attainment of performance goals for certain performance-based restricted stock awards ("PSUs") effective February 26, 2026. The PSUs were settled with shares of common stock.

F2 · balance_after: Includes (i) 94 shares of Common Stock purchased pursuant to the Amended and Restated 2017 Ingevity Corporation Employee Stock Purchase Plan, as amended ("ESPP") for the purchase period of July 1, 2025 to September 30, 2025 (the "September ESPP Shares"), and (ii) 76 shares of Common Stock purchased pursuant to the ESPP for the purchase period of October 1, 2025 to December 31, 2025 (the "December ESPP Shares"). In accordance with the terms of the ESPP, the September ESPP Shares were purchased at a price equal to 85% of the closing price of Issuer's Common Stock on July 1, 2025 and the December ESPP Shares were purchased at a price equal to 85% of the closing price of the Issuer's Common Stock on October 1, 2025.

SEC source: 0001668926-26-000001 · wk-form4_1772488102.xml · nonDerivative · entry 2

PLATT PHILLIP JOHN · CIK 0001668926 · SVP, Finance & CAO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 28,911

F3 · shares: Shares withheld by the Company to satisfy tax withholding obligations related to the PSUs that vested on February 26, 2026.

SEC source: 0001668926-26-000001 · wk-form4_1772488102.xml · nonDerivative · entry 1

PLATT PHILLIP JOHN · CIK 0001668926 · SVP, Finance & CAO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 29,019

F1 · shares: The Talent and Compensation Committee of the Company's board of directors certified the attainment of performance goals for certain performance-based restricted stock awards ("PSUs") effective February 26, 2026. The PSUs were settled with shares of common stock.

F2 · balance_after: Includes (i) 386 shares of Common Stock purchased pursuant to the Amended and Restated 2017 Ingevity Corporation Employee Stock Purchase Plan, as amended ("ESPP") for the purchase period of July 1, 2025 to September 30, 2025 (the "September ESPP Shares"), and (ii) 143 shares of Common Stock purchased pursuant to the ESPP for the purchase period of October 1, 2025 to December 31, 2025 (the "December ESPP Shares"). In accordance with the terms of the ESPP, the September ESPP Shares were purchased at a price equal to 85% of the closing price of Issuer's Common Stock on July 1, 2025 and the December ESPP Shares were purchased at a price equal to 85% of the closing price of the Issuer's Common Stock on October 1, 2025.

SEC source: 0001659705-26-000001 · wk-form4_1772488515.xml · nonDerivative · entry 2

Hall Mary Dean · CIK 0001659705 · EVP, Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 41,775

F2 · shares: Shares withheld by the Company to satisfy tax withholding obligations related to the PSUs that vested on February 26, 2026.

SEC source: 0001659705-26-000001 · wk-form4_1772488515.xml · nonDerivative · entry 1

Hall Mary Dean · CIK 0001659705 · EVP, Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 42,648

F1 · shares: The Talent and Compensation Committee of the Company's board of directors certified the attainment of performance goals for certain performance-based restricted stock awards ("PSUs") effective February 26, 2026. The PSUs were settled with shares of common stock.

SEC source: 0001653477-26-000017 · wk-form4_1772487920.xml · nonDerivative · entry 2

Clontz Clarence Reid Jr. · CIK 0002098263 · SVP, Operations

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,363

F3 · shares: Shares withheld by the Company to satisfy tax withholding obligations related to the PSUs that vested on February 26, 2026.

SEC source: 0001653477-26-000017 · wk-form4_1772487920.xml · nonDerivative · entry 1

Clontz Clarence Reid Jr. · CIK 0002098263 · SVP, Operations

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,432

F1 · shares: The Talent and Compensation Committee of the Company's board of directors certified the attainment of performance goals for certain performance-based restricted stock awards ("PSUs") effective February 26, 2026. The PSUs were settled with shares of common stock.

F2 · balance_after: Includes 216 shares of Common Stock purchased pursuant to the Amended and Restated 2017 Ingevity Corporation Employee Stock Purchase Plan, as amended ("ESPP"), for the purchase period of October 1, 2025 to December 31, 2025. In accordance with the terms of the ESPP, these shares were purchased at a price equal to 85% of the closing price of Issuer's Common Stock on October 1, 2025.

SEC source: 0001653477-26-000001 · wk-form4_1767724687.xml · nonDerivative · entry 1

WILLIS J KEVIN · CIK 0001575329 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,779

F1 · shares: Represents vested deferred stock units ("DSUs") granted pursuant to the reporting person's election to receive DSUs in lieu of quarterly director fees. These DSUs will settle into an equal number of shares of the Company's Common Stock upon the reporting person's termination of board service pursuant to the Company's Amended and Restated Non-Employee Director Deferred Compensation Plan and 2025 Omnibus Incentive Plan.

SEC source: 0001653477-26-000002 · wk-form4_1767724782.xml · nonDerivative · entry 1

Segal Francis David · CIK 0002066872 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,051

F1 · shares: Represents vested deferred stock units ("DSUs") granted pursuant to the reporting person's election to receive DSUs in lieu of quarterly director fees. These DSUs will settle into an equal number of shares of the Company's Common Stock upon the reporting person's termination of board service pursuant to the Company's Amended and Restated Non-Employee Director Deferred Compensation Plan and 2025 Omnibus Incentive Plan.

SEC source: 0001653477-25-000115 · wk-form4_1759756257.xml · nonDerivative · entry 1

FERNANDEZ-MORENO LUIS M · CIK 0001434786 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 35,978

F1 · shares: Shares withheld by the Company to satisfy tax withholding obligations for the 2024 grant of restricted stock units ("RSUs") related to the reporting person's service as the Company's Interim President and CEO ("Interim CEO") that vested on October 2, 2025.

F2 · balance_after: Total reflects the forfeiture of 11,123 RSUs by the reporting person due to the termination of his role as Interim CEO prior to the one-year anniversary of the related RSU grant.

SEC source: 0001575329-25-000006 · wk-form4_1759436895.xml · nonDerivative · entry 1

WILLIS J KEVIN · CIK 0001575329 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,300

F1 · shares: Represents vested deferred stock units (DSUs) granted pursuant to the reporting person's election to receive DSUs in lieu of quarterly director fees. These DSUs will settle into an equal number of shares of the Company's Common Stock upon the reporting person's termination of board service pursuant to the Company's Non-Employee Director Deferred Compensation Plan and 2025 Omnibus Incentive Plan.

SEC source: 0002066872-25-000002 · wk-form4_1759436932.xml · nonDerivative · entry 1

Segal Francis David · CIK 0002066872 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,655

F1 · shares: Represents vested deferred stock units ("DSUs") granted pursuant to the reporting person's election to receive DSUs in lieu of quarterly director fees. These DSUs will settle into an equal number of shares of the Company's Common Stock upon the reporting person's termination of board service pursuant to the Company's Non-Employee Director Deferred Compensation Plan and 2025 Omnibus Incentive Plan.

SEC source: 0001653477-25-000112 · wk-form4_1755116709.xml · nonDerivative · entry 1

PLATT PHILLIP JOHN · CIK 0001668926 · SVP, Finance & CAO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 28,243

F1 · shares: Shares withheld by the Company to satisfy tax withholding obligations related to the 2024 RSUs that vested on August 11, 2025.

SEC source: 0001653477-25-000101 · wk-form4_1752067377.xml · nonDerivative · entry 1

Fisher Ryan C. · CIK 0002017486 · SVP, Gen. Counsel & Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,758

F1 · shares: Shares withheld by the Company to satisfy tax withholding obligations related to the 2024 RSUs that vested on July 7, 2025.

SEC source: 0001653477-25-000097 · wk-form4_1751560713.xml · nonDerivative · entry 1

WILLIS J KEVIN · CIK 0001575329 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,794

F1 · shares: Represents vested deferred stock units ("DSUs") granted pursuant to the reporting person's election to receive DSUs in lieu of quarterly director fees. These DSUs will settle into an equal number of shares of the Company's Common Stock upon the reporting person's termination of board service pursuant to the Company's Non-Employee Director Deferred Compensation Plan and 2025 Omnibus Incentive Plan.

SEC source: 0001653477-25-000095 · wk-form4_1751560448.xml · nonDerivative · entry 1

Segal Francis David · CIK 0002066872 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,241

F1 · shares: Represents vested deferred stock units ("DSUs") granted pursuant to the reporting person's election to receive DSUs in lieu of quarterly director fees. These DSUs will settle into an equal number of shares of the Company's Common Stock upon the reporting person's termination of board service pursuant to the Company's Non-Employee Director Deferred Compensation Plan and 2025 Omnibus Incentive Plan.

SEC source: 0001653477-25-000074 · wk-form4_1746482557.xml · nonDerivative · entry 1

NARWOLD KAREN G · CIK 0001095670 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 16,996

F1 · shares: Represents a grant of deferred stock units ("DSUs") issued pursuant to the reporting person's election to receive DSUs in lieu of the annual non-employee director restricted stock unit grant. These DSUs will vest on May 1, 2026 and will settle into an equal number of shares of the issuer's Common Stock upon the reporting person's termination of board service pursuant to the issuer's Non-Employee Director Deferred Compensation Plan and 2016 Omnibus Incentive Plan, as amended.

SEC source: 0001653477-25-000079 · wk-form4_1746483061.xml · nonDerivative · entry 1

Gulyas Diane H. · CIK 0001466674 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,884

F1 · shares: Grant of restricted stock units pursuant to Ingevity Corporation's 2016 Omnibus Incentive Plan, which will vest in full on May 1, 2026.

SEC source: 0001653477-25-000085 · wk-form4_1746484678.xml · nonDerivative · entry 1

FERNANDEZ-MORENO LUIS M · CIK 0001434786 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 53,105

F1 · shares: Grant of restricted stock units pursuant to Ingevity Corporation's 2016 Omnibus Incentive Plan, which will vest in full on May 1, 2026.

SEC source: 0001653477-25-000087 · wk-form4_1746484920.xml · nonDerivative · entry 1

Blackwell Jean · CIK 0001238891 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,857

F1 · shares: Grant of restricted stock units pursuant to Ingevity Corporation's 2016 Omnibus Incentive Plan, which will vest in full on May 1, 2026.

F2 · balance_after: Excludes 1,645 shares that were previously transferred by the reporting person to the Jean S. Blackwell Revocable Trust (the "Transferred Shares").

SEC source: 0001653477-25-000081 · wk-form4_1746484235.xml · nonDerivative · entry 1

Sansone Daniel F · CIK 0001327125 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 16,879

F1 · shares: Grant of restricted stock units pursuant to Ingevity Corporation's 2016 Omnibus Incentive Plan, which will vest in full on May 1, 2026.

SEC source: 0001653477-25-000070 · wk-form4_1746481875.xml · nonDerivative · entry 1

Hoechner Bruce D. · CIK 0001531814 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,828

F1 · shares: Represents a grant of deferred stock units ("DSUs") issued pursuant to the reporting person's election to receive DSUs in lieu of the annual non-employee director restricted stock unit grant. These DSUs will vest on May 1, 2026 and will settle into an equal number of shares of the issuer's Common Stock upon the reporting person's termination of board service pursuant to the issuer's Non-Employee Director Deferred Compensation Plan and 2016 Omnibus Incentive Plan, as amended.

SEC source: 0001653477-25-000068 · wk-form4_1746481515.xml · nonDerivative · entry 2

WILLIS J KEVIN · CIK 0001575329 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,174

F2 · shares: Represents vested DSUs granted pursuant to the reporting person's election to receive DSUs in lieu of quarterly director fees. These DSUs will settle into an equal number of shares of the Company's Common Stock upon the reporting person's termination of board service pursuant to the Company's Non-Employee Director Deferred Compensation Plan and 2016 Omnibus Incentive Plan, as amended.

SEC source: 0001653477-25-000068 · wk-form4_1746481515.xml · nonDerivative · entry 1

WILLIS J KEVIN · CIK 0001575329 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,023

F1 · shares: Represents a grant of deferred stock units ("DSUs") issued pursuant to the reporting person's election to receive DSUs in lieu of the annual non-employee director restricted stock unit grant. These DSUs will vest on May 1, 2026 and will settle into an equal number of shares of the issuer's Common Stock upon the reporting person's termination of board service pursuant to the issuer's Non-Employee Director Deferred Compensation Plan and 2016 Omnibus Incentive Plan, as amended.

SEC source: 0001653477-25-000083 · wk-form4_1746484415.xml · nonDerivative · entry 1

Lynch Frederick J · CIK 0001580705 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 26,359

F1 · shares: Grant of restricted stock units pursuant to Ingevity Corporation's 2016 Omnibus Incentive Plan, which will vest in full on May 1, 2026.

SEC source: 0001653477-25-000072 · wk-form4_1746482377.xml · nonDerivative · entry 1

Wright Benjamin G. · CIK 0001938475 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 10,044

F1 · shares: Represents a grant of deferred stock units ("DSUs") issued pursuant to the reporting person's election to receive DSUs in lieu of the annual non-employee director restricted stock unit grant. These DSUs will vest on May 1, 2026 and will settle into an equal number of shares of the issuer's Common Stock upon the reporting person's termination of board service pursuant to the issuer's Non-Employee Director Deferred Compensation Plan and 2016 Omnibus Incentive Plan, as amended.

SEC source: 0001653477-25-000066 · wk-form4_1746481151.xml · nonDerivative · entry 2

Segal Francis David · CIK 0002066872 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,734

F2 · shares: Represents vested DSUs granted pursuant to the reporting person's election to receive DSUs in lieu of quarterly director fees. These DSUs will settle into an equal number of shares of the Company's Common Stock upon the reporting person's termination of board service pursuant to the Company's Non-Employee Director Deferred Compensation Plan and 2016 Omnibus Incentive Plan, as amended.

SEC source: 0001653477-25-000066 · wk-form4_1746481151.xml · nonDerivative · entry 1

Segal Francis David · CIK 0002066872 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,057

F1 · shares: Represents a grant of deferred stock units ("DSUs") issued pursuant to the reporting person's election to receive DSUs in lieu of the annual non-employee director restricted stock unit grant. These DSUs will vest on May 1, 2026 and will settle into an equal number of shares of the issuer's Common Stock upon the reporting person's termination of board service pursuant to the issuer's Non-Employee Director Deferred Compensation Plan and 2016 Omnibus Incentive Plan, as amended.

SEC source: 0001653477-25-000053 · wk-form4_1744234083.xml · derivative · entry 3

Li David H · CIK 0001436880 · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 177,305

Underlying: Common Stock · 177,305 shares

Expires 2035-04-07

F3 · shares: These options are granted pursuant to the 2016 OIP. Such options will vest ratably in four installments on April 7, 2026, 2027, 2028 and 2029.

SEC source: 0001653477-25-000053 · wk-form4_1744234083.xml · nonDerivative · entry 2

Li David H · CIK 0001436880 · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 118,185

F2 · shares: Grant of RSUs pursuant to the 2016 OIP, which will vest ratably in four installments on April 7, 2026, 2027, 2028, and 2029.

SEC source: 0001653477-25-000053 · wk-form4_1744234083.xml · nonDerivative · entry 1

Li David H · CIK 0001436880 · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 86,669

F1 · shares: Grant of restricted stock units ("RSUs") pursuant to the Ingevity Corporation 2016 Omnibus Incentive Plan ("2016 OIP"), which will vest ratably in three installments on April 7, 2026, 2027, and 2028.

SEC source: 0001653477-25-000055 · wk-form4a_1744922273.xml · derivative · entry 1

Li David H · CIK 0001436880 · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 123,229

Underlying: Common Stock · 123,229 shares

Expires 2035-04-07

F1 · shares: The original Form 4 filed on April 9, 2025 inadvertently reported an incorrect number of Employee Stock Options (right to buy) ("Options") granted to the reporting person due to a clerical error. This amendment reports the correct number of Options granted to the reporting person in the reported transaction.

F2 · derivative.exercise_date: These Options will vest ratably in four installments on April 7, 2026, 2027, 2028 and 2029.

SEC source: 0001653477-25-000048 · wk-form4_1743625943.xml · nonDerivative · entry 1

WILLIS J KEVIN · CIK 0001575329 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,966

F1 · shares: Represents vested deferred stock units ("DSUs") granted pursuant to the reporting person's election to receive DSUs in lieu of quarterly director fees. These DSUs will settle into an equal number of shares of the Company's Common Stock upon the reporting person's termination of board service pursuant to the Company's Non-Employee Director Deferred Compensation Plan and 2016 Omnibus Incentive Plan, as amended.

SEC source: 0001653477-25-000046 · wk-form4_1743025631.xml · nonDerivative · entry 1

Fisher Ryan C. · CIK 0002017486 · SVP, Gen. Counsel & Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,927

F1 · shares: Shares withheld by the Company to satisfy tax withholding obligations related to the 2024 RSUs that vested on March 25, 2025.

SEC source: 0001653477-25-000038 · wk-form4_1741138211.xml · nonDerivative · entry 5

Fisher Ryan C. · CIK 0002017486 · SVP, Gen. Counsel & Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 15,237

F4 · shares: Grant of RSUs pursuant to the Ingevity Corporation 2016 Omnibus Incentive Plan, which will vest in three equal installments on February 28, 2026, 2027, and 2028.

SEC source: 0001653477-25-000038 · wk-form4_1741138211.xml · nonDerivative · entry 4

Fisher Ryan C. · CIK 0002017486 · SVP, Gen. Counsel & Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 10,522

F3 · shares: Shares withheld by the Company to satisfy tax withholding obligations related to the 2024 RSUs that vested on February 28, 2025.

SEC source: 0001653477-25-000038 · wk-form4_1741138211.xml · nonDerivative · entry 3

Fisher Ryan C. · CIK 0002017486 · SVP, Gen. Counsel & Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 10,629

F3 · shares: Shares withheld by the Company to satisfy tax withholding obligations related to the 2024 RSUs that vested on February 28, 2025.