Knowles (NYSE: KN) legal chief sells 16,643 company shares

Rhea-AI Filing Summary

Knowles Corp executive Robert J. Perna reported selling a total of 16,643 shares of common stock in open-market transactions. On February 24, 2026, he directly sold 7,422 shares at a weighted average price of $28.10. On February 26, 2026, a trust associated with him sold 9,221 shares at a weighted average price of $27.88.

Following these trades, Perna’s direct ownership stood at 80,272 shares, while the trust no longer held shares. Both sales occurred through multiple transactions within narrow price ranges around the reported averages.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

PERNA ROBERT J

(Last) (First) (Middle)

1151 MAPLEWOOD DRIVE

(Street)

ITASCA IL 60143

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Knowles Corp [ KN ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	SVP, General Counsel & Sec

3. Date of Earliest Transaction (Month/Day/Year)
02/24/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	02/24/2026		S		7,422	D	$28.1(1)	80,272	D
Common Stock	02/26/2026		S		9,221	D	$27.88(2)	0	I	by Trust

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. 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.

2. 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.

	By: Robyn B. Martin For: POA for Robert J. Perna	02/26/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What insider transactions did Knowles (KN) report for Robert J. Perna?

Knowles reported that executive Robert J. Perna completed two open-market sales totaling 16,643 common shares. One sale was made directly from his holdings, and the other through a trust associated with him, both at weighted average prices near $28 per share.

On what dates did Robert J. Perna sell Knowles (KN) shares and how many?

Robert J. Perna reported selling Knowles shares on February 24, 2026 and February 26, 2026. He sold 7,422 shares directly on February 24, 2026 and 9,221 shares through a trust on February 26, 2026, for a combined 16,643 shares.

What prices did Robert J. Perna receive for his Knowles (KN) stock sales?

Perna’s reported weighted average sale price was $28.10 per share for 7,422 directly held shares and $27.88 per share for 9,221 shares sold by a trust. Footnotes state each trade occurred in multiple transactions within narrow ranges around those average prices.

How many Knowles (KN) shares did Robert J. Perna hold after these transactions?

After the reported sales, Robert J. Perna held 80,272 Knowles common shares directly. The filing indicates that the trust associated with him no longer held shares following its 9,221-share sale, leaving only his direct position reported in the ownership column.

Were Robert J. Perna’s Knowles (KN) stock sales direct or through an entity?

Perna’s sales involved both types of ownership. He directly sold 7,422 Knowles shares from his own holdings. An additional 9,221 shares were sold indirectly by a trust, with the filing describing his nature of ownership as “by Trust.”