KN · Knowles Corp

The transaction reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 25, 2026.

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $37.00 to $38.19, inclusive. The reporting person undertakes to provide to Knowles Corporation, any security holder of Knowles Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased/sold at each separate price within the ranges set forth in this footnote to this Form 4.

The transaction reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 25, 2026.

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $37.00 to $38.19, inclusive. The reporting person undertakes to provide to Knowles Corporation, any security holder of Knowles Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased/sold at each separate price within the ranges set forth in this footnote to this Form 4.

These shares represent the payment of the option exercise price and tax liability by withholding securities.

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $33.01 to $33.55, inclusive. The reporting person undertakes to provide to Knowles Corporation, any security holder of Knowles Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased/sold at each separate price within the ranges set forth in this footnote to this Form 4.

Restricted Stock Units (RSU) awarded as compensation for services as a Director pursuant to the Knowles Corporation 2018 Equity and Cash Incentive Plan. The RSUs will vest on the first anniversary of the grant.

Restricted Stock Units (RSU) awarded as compensation for services as a Director pursuant to the Knowles Corporation 2018 Equity and Cash Incentive Plan. The RSUs will vest on the first anniversary of the grant.

Restricted Stock Units (RSU) awarded as compensation for services as a Director pursuant to the Knowles Corporation 2018 Equity and Cash Incentive Plan. The RSUs will vest on the first anniversary of the grant.

Restricted Stock Units (RSU) awarded as compensation for services as a Director pursuant to the Knowles Corporation 2018 Equity and Cash Incentive Plan. The RSUs will vest on the first anniversary of the grant.

Restricted Stock Units (RSU) awarded as compensation for services as a Director pursuant to the Knowles Corporation 2018 Equity and Cash Incentive Plan. The RSUs will vest on the first anniversary of the grant.

Restricted Stock Units (RSU) awarded as compensation for services as a Director pursuant to the Knowles Corporation 2018 Equity and Cash Incentive Plan. The RSUs will vest on the first anniversary of the grant.

Restricted Stock Units (RSU) awarded as compensation for services as a Director pursuant to the Knowles Corporation 2018 Equity and Cash Incentive Plan. The RSUs will vest on the first anniversary of the grant.

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $27.88 to $27.89, inclusive. The reporting person undertakes to provide to Knowles Corporation, any security holder of Knowles Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased/sold at each separate price within the ranges set forth in this footnote to this Form 4.

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $27.98 to $28.11, inclusive. The reporting person undertakes to provide to Knowles Corporation, any security holder of Knowles Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased/sold at each separate price within the ranges set forth in this footnote to this Form 4.

These shares represent the payment of the tax liability by withholding securities incident to the vesting of a restricted stock grant issued on February 20, 2024 in accordance with Rule 16b-3.

These shares represent the payment of the tax liability by withholding securities incident to the vesting of a restricted stock grant issued on February 20, 2024 in accordance with Rule 16b-3.

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $27.37 to $27.45, inclusive. The reporting person undertakes to provide to Knowles Corporation, any security holder of Knowles Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased/sold at each separate price within the ranges set forth in this footnote to this Form 4.

These shares represent the payment of the tax liability by withholding securities incident to the vesting of a restricted stock grant issued on February 20, 2024 in accordance with Rule 16b-3.

These shares represent the payment of the tax liability by withholding securities incident to the vesting of a restricted stock grant issued on February 20, 2024 in accordance with Rule 16b-3.

These shares represent the payment of the tax liability by withholding securities incident to the vesting of a restricted stock grant issued on February 20, 2024 in accordance with Rule 16b-3.

These shares represent the payment of the tax liability by withholding securities incident to the vesting of a restricted stock grant issued on February 20, 2024 in accordance with Rule 16b-3.

The reporting person contributed Knowles Corporation common stock to an exchange fund in exchange for shares of the exchange fund. The Knowles Corporation common stock was valued at $27.16 per share for the purpose of determining the number of shares of the exchange fund issuable to the reporting person.

These shares represent the payment of the tax liability by withholding securities incident to the vesting of a restricted stock grant issued on February 18, 2025 in accordance with Rule 16b-3.

These shares represent the payment of the tax liability by withholding securities incident to the vesting of a restricted stock grant issued on February 18, 2025 in accordance with Rule 16b-3.

These shares represent the payment of the tax liability by withholding securities incident to the vesting of a restricted stock grant issued on February 18, 2025 in accordance with Rule 16b-3.

These shares represent the payment of the tax liability by withholding securities incident to the vesting of a restricted stock grant issued on February 18, 2025 in accordance with Rule 16b-3.

These shares represent the payment of the tax liability by withholding securities incident to the vesting of a restricted stock grant issued on February 18, 2025 in accordance with Rule 16b-3.

These shares represent the payment of the tax liability by withholding securities incident to the vesting of a restricted stock grant issued on February 18, 2025 in accordance with Rule 16b-3.

Restricted Stock Units granted under the Knowles Corporation 2018 Equity and Cash Incentive Plan that vest ratably over three years commencing on the first anniversary of the award.

Restricted Stock Units granted under the Knowles Corporation 2018 Equity and Cash Incentive Plan that vest ratably over three years commencing on the first anniversary of the award.

Represents the settlement of performance share units (PSUs) that were previously granted under the Knowles Corporation Equity Incentive Plan. The ultimate amount of shares to be received under the grant depended upon the achievement of performance goals during a three-year performance period from January 1, 2023 through December 31, 2025.

Restricted Stock Units granted under the Knowles Corporation 2018 Equity and Cash Incentive Plan that vest ratably over three years commencing on the first anniversary of the award.

Represents the settlement of performance share units (PSUs) that were previously granted under the Knowles Corporation Equity Incentive Plan. The ultimate amount of shares to be received under the grant depended upon the achievement of performance goals during a three-year performance period from January 1, 2023 through December 31, 2025.

Represents the settlement of performance share units (PSUs) that were previously granted under the Knowles Corporation Equity Incentive Plan. The ultimate amount of shares to be received under the grant depended upon the achievement of performance goals during a three-year performance period from January 1, 2023 through December 31, 2025.

These shares represent the payment of the tax liability by withholding securities incident to the settlement of performance share units granted on February 6, 2023 in accordance with Rule 16b-3.

Restricted Stock Units granted under the Knowles Corporation 2018 Equity and Cash Incentive Plan that vest ratably over three years commencing on the first anniversary of the award.

Represents the settlement of performance share units (PSUs) that were previously granted under the Knowles Corporation Equity Incentive Plan. The ultimate amount of shares to be received under the grant depended upon the achievement of performance goals during a three-year performance period from January 1, 2023 through December 31, 2025.

Restricted Stock Units granted under the Knowles Corporation 2018 Equity and Cash Incentive Plan that vest ratably over three years commencing on the first anniversary of the award.

Restricted Stock Units granted under the Knowles Corporation 2018 Equity and Cash Incentive Plan that vest ratably over three years commencing on the first anniversary of the award.

These shares represent the payment of the tax liability by withholding securities incident to the settlement of performance share units granted on February 6, 2023 in accordance with Rule 16b-3.

Represents the settlement of performance share units (PSUs) that were previously granted under the Knowles Corporation Equity Incentive Plan. The ultimate amount of shares to be received under the grant depended upon the achievement of performance goals during a three-year performance period from January 1, 2023 through December 31, 2025.

These shares represent the payment of the tax liability by withholding securities incident to the settlement of performance share units granted on February 6, 2023 in accordance with Rule 16b-3.

These shares represent the payment of the tax liability by withholding securities incident to the settlement of performance share units granted on February 6, 2023 in accordance with Rule 16b-3.