| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| PERNA ROBERT J | SVP, General Counsel & Sec | 1151 MAPLEWOOD DRIVE, ITASCA | By: Robyn B. Martin For: POA for Robert J. Perna | 10 Feb 2026 | 0001181355 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | KN | Common Stock | Tax liability | $79,483 | -2,946 | -4.4% | $26.98 | 63,606 | 06 Feb 2026 | Direct | F1 |
| transaction | KN | Common Stock | Sale | $85,767 | -3,166 | -5% | $27.09 | 60,440 | 10 Feb 2026 | Direct | F2 |
| holding | KN | Common Stock | 9,221 | 06 Feb 2026 | by Trust |
| Id | Content |
|---|---|
| F1 | These shares represent the payment of the tax liability by withholding securities incident to the vesting of a restricted stock grant issued on February 6, 2023 in accordance with Rule 16b-3. |
| F2 | The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $27.08 to $27.10, 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. |