KN

SEC source: 0001196914-26-000003 · edgardoc.xml · nonDerivative · entry 2

SHAVERS CHERYL L · CIK 0001196914 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 35,723

SEC source: 0001196914-26-000003 · edgardoc.xml · nonDerivative · entry 1

SHAVERS CHERYL L · CIK 0001196914 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 35,898

SEC source: 0001196914-26-000004 · edgardoc.xml · nonDerivative · entry 2

SHAVERS CHERYL L · CIK 0001196914 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 35,723

F1 · shares: On August 18, 2026, the reporting person filed a Form 4 which inadvertently indicated that the transactions reported were made pursuant to a Rule 10b5-1 trading plan. This amended Form 4 does not report additional transactions, but rather corrects this error.

SEC source: 0001196914-26-000004 · edgardoc.xml · nonDerivative · entry 1

SHAVERS CHERYL L · CIK 0001196914 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 35,898

F1 · shares: On August 18, 2026, the reporting person filed a Form 4 which inadvertently indicated that the transactions reported were made pursuant to a Rule 10b5-1 trading plan. This amended Form 4 does not report additional transactions, but rather corrects this error.

SEC source: 0001535760-26-000010 · edgardoc.xml · nonDerivative · entry 3

Niew Jeffrey · CIK 0001535760 · Director · President & CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 683,719

F1 · shares: The transaction reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 13, 2026.

SEC source: 0001598318-26-000006 · edgardoc.xml · nonDerivative · entry 2

Anderson John S. · CIK 0001598318 · Senior Vice President & CFO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 194,596

F1 · shares: The transaction reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 13, 2026.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $38.64 to $39.03, 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.

SEC source: 0001535760-26-000010 · edgardoc.xml · nonDerivative · entry 2

Niew Jeffrey · CIK 0001535760 · Director · President & CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 690,670

F1 · shares: The transaction reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 13, 2026.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $38.00 to $39.17, 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.

SEC source: 0001598318-26-000006 · edgardoc.xml · nonDerivative · entry 1

Anderson John S. · CIK 0001598318 · Senior Vice President & CFO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 204,596

F1 · shares: The transaction reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 13, 2026.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $38.79 to $39.56, 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.

SEC source: 0001535760-26-000010 · edgardoc.xml · nonDerivative · entry 1

Niew Jeffrey · CIK 0001535760 · Director · President & CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 733,719

F1 · shares: The transaction reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 13, 2026.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $38.79 to $39.58, 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.

SEC source: 0001598091-26-000005 · edgardoc.xml · nonDerivative · entry 1

Cabrera Raymond D. · CIK 0001598091 · SVP, Chief HR Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 127,945

SEC source: 0001598086-26-000005 · edgardoc.xml · nonDerivative · entry 2

Giesecke Daniel J. · CIK 0001598086 · Senior Vice President & COO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 175,855

F1 · shares: 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.

F2 · price: 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.

SEC source: 0001598086-26-000005 · edgardoc.xml · nonDerivative · entry 1

Giesecke Daniel J. · CIK 0001598086 · Senior Vice President & COO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 185,867

F1 · shares: 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.

F2 · price: 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.

SEC source: 0001598091-26-000004 · edgardoc.xml · derivative · entry 3

Cabrera Raymond D. · CIK 0001598091 · SVP, Chief HR Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 25,210 shares

Expires 2027-02-09

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.

SEC source: 0001598091-26-000004 · edgardoc.xml · nonDerivative · entry 2

Cabrera Raymond D. · CIK 0001598091 · SVP, Chief HR Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 134,123

F1 · shares: These shares represent the payment of the option exercise price and tax liability by withholding securities.

SEC source: 0001598091-26-000004 · edgardoc.xml · nonDerivative · entry 1

Cabrera Raymond D. · CIK 0001598091 · SVP, Chief HR Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 151,722

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.

SEC source: 0001535760-26-000008 · edgardoc.xml · derivative · entry 3

Niew Jeffrey · CIK 0001535760 · Director · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 142,857 shares

Expires 2027-02-09

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.

SEC source: 0001535760-26-000008 · edgardoc.xml · nonDerivative · entry 2

Niew Jeffrey · CIK 0001535760 · Director · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 883,719

F1 · price: 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.

SEC source: 0001535760-26-000008 · edgardoc.xml · nonDerivative · entry 1

Niew Jeffrey · CIK 0001535760 · Director · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,026,576

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.

SEC source: 0001745084-26-000006 · edgardoc.xml · nonDerivative · entry 1

Bastarrica Air A. Jr. · CIK 0001745084 · Vice President, Controller

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 47,569

SEC source: 0001745084-26-000005 · edgardoc.xml · nonDerivative · entry 3

Bastarrica Air A. Jr. · CIK 0001745084 · Vice President, Controller

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 51,192

SEC source: 0001949708-26-000001 · edgardoc.xml · nonDerivative · entry 1

Angelini Laura · CIK 0001949708 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 30,311

F1 · shares: 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.

SEC source: 0001667921-26-000001 · edgardoc.xml · nonDerivative · entry 2

Li Ye Jane · CIK 0001667921 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 66,717

F1 · shares: 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.

SEC source: 0001268517-26-000005 · edgardoc.xml · nonDerivative · entry 1

BARNES KEITH · CIK 0001268517 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 63,299

F1 · shares: 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.

SEC source: 0001196914-26-000002 · edgardoc.xml · nonDerivative · entry 1

SHAVERS CHERYL L · CIK 0001196914 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 42,341

F1 · shares: 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.

SEC source: 0001504939-26-000001 · edgardoc.xml · nonDerivative · entry 1

Crowley Daniel J · CIK 0001504939 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 59,083

F1 · shares: 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.

SEC source: 0001529005-26-000001 · edgardoc.xml · nonDerivative · entry 1

Cardew Jason M · CIK 0001529005 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 36,414

F1 · shares: 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.

SEC source: 0001593411-26-000001 · edgardoc.xml · nonDerivative · entry 1

WISHART MICHAEL S · CIK 0001593411 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 76,720

F1 · shares: 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.

SEC source: 0001745084-26-000005 · edgardoc.xml · nonDerivative · entry 2

Bastarrica Air A. Jr. · CIK 0001745084 · Vice President, Controller

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 53,345

SEC source: 0001745084-26-000005 · edgardoc.xml · nonDerivative · entry 1

Bastarrica Air A. Jr. · CIK 0001745084 · Vice President, Controller

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 55,307

SEC source: 0001181355-26-000004 · edgardoc.xml · nonDerivative · entry 2

PERNA ROBERT J · CIK 0001181355 · SVP, General Counsel & Sec

10b5-1 filing: No plan indicated

Ownership: Indirect · by Trust

Disclosed balance after: 0

F2 · price: 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.

SEC source: 0001181355-26-000004 · edgardoc.xml · nonDerivative · entry 1

PERNA ROBERT J · CIK 0001181355 · SVP, General Counsel & Sec

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 80,272

F1 · price: 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.

SEC source: 0001181355-26-000003 · edgardoc.xml · nonDerivative · entry 1

PERNA ROBERT J · CIK 0001181355 · SVP, General Counsel & Sec

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 87,694

F1 · shares: 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.

SEC source: 0001196914-26-000001 · edgardoc.xml · nonDerivative · entry 1

SHAVERS CHERYL L · CIK 0001196914 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 36,076

F1 · price: 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.

SEC source: 0001535760-26-000007 · edgardoc.xml · nonDerivative · entry 1

Niew Jeffrey · CIK 0001535760 · Director · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 883,719

F1 · shares: 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.

SEC source: 0001598086-26-000003 · edgardoc.xml · nonDerivative · entry 1

Giesecke Daniel J. · CIK 0001598086 · Senior Vice President & COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 196,056

F1 · shares: 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.

SEC source: 0001598091-26-000003 · edgardoc.xml · nonDerivative · entry 1

Cabrera Raymond D. · CIK 0001598091 · SVP, Chief HR Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 126,512

F1 · shares: 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.

SEC source: 0001745084-26-000004 · edgardoc.xml · nonDerivative · entry 1

Bastarrica Air A. Jr. · CIK 0001745084 · Vice President, Controller

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 57,569

F1 · shares: 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.

SEC source: 0001598318-26-000005 · edgardoc.xml · nonDerivative · entry 1

Anderson John S. · CIK 0001598318 · Senior Vice President & CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 234,596

F1 · shares: 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.

SEC source: 0001268517-26-000004 · edgardoc.xml · nonDerivative · entry 3

BARNES KEITH · CIK 0001268517 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · by Trust

Disclosed balance after: 0

F2 · kind: 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.

F2 · price: 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.

SEC source: 0001181355-26-000002 · edgardoc.xml · nonDerivative · entry 4

PERNA ROBERT J · CIK 0001181355 · SVP, General Counsel & Sec

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 90,780

F4 · shares: 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.

SEC source: 0001535760-26-000005 · edgardoc.xml · nonDerivative · entry 4

Niew Jeffrey · CIK 0001535760 · Director · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 901,175

F4 · shares: 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.

SEC source: 0001598086-26-000002 · edgardoc.xml · nonDerivative · entry 4

Giesecke Daniel J. · CIK 0001598086 · Senior Vice President & COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 200,024

F4 · shares: 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.

SEC source: 0001598091-26-000002 · edgardoc.xml · nonDerivative · entry 4

Cabrera Raymond D. · CIK 0001598091 · SVP, Chief HR Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 129,598

F4 · shares: 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.

SEC source: 0001745084-26-000003 · edgardoc.xml · nonDerivative · entry 2

Bastarrica Air A. Jr. · CIK 0001745084 · Vice President, Controller

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 59,916

F2 · shares: 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.

SEC source: 0001598318-26-000004 · edgardoc.xml · nonDerivative · entry 4

Anderson John S. · CIK 0001598318 · Senior Vice President & CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 240,327

F4 · shares: 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.

SEC source: 0001181355-26-000002 · edgardoc.xml · nonDerivative · entry 3

PERNA ROBERT J · CIK 0001181355 · SVP, General Counsel & Sec

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 93,598

F3 · shares: 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.

SEC source: 0001181355-26-000002 · edgardoc.xml · nonDerivative · entry 2

PERNA ROBERT J · CIK 0001181355 · SVP, General Counsel & Sec

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 79,781

F2 · shares: 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.

SEC source: 0001181355-26-000002 · edgardoc.xml · nonDerivative · entry 1

PERNA ROBERT J · CIK 0001181355 · SVP, General Counsel & Sec

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 95,165

F1 · shares: 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.

SEC source: 0001535760-26-000005 · edgardoc.xml · nonDerivative · entry 3

Niew Jeffrey · CIK 0001535760 · Director · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 917,118

F3 · shares: 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.

SEC source: 0001535760-26-000005 · edgardoc.xml · nonDerivative · entry 2

Niew Jeffrey · CIK 0001535760 · Director · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 844,163

F2 · shares: 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.