[Form 4] Knowles Corp Insider Trading Activity

Rhea-AI Filing Summary

Knowles (KN) President & CEO and Director Jeffrey Niew reported option exercises and open-market sales. He exercised non-qualified stock options at $16.07 for 98,252 shares on 10/31/2025 and 38,404 shares on 11/03/2025, then sold the same amounts at weighted average prices of $23.7148 and $23.5498, respectively. Following these transactions, he directly owned 939,370 shares.

The option entries list grant terms with a date exercisable of 02/19/2020 and an expiration date of 02/19/2026. The footnotes state the sales were executed in multiple trades within price ranges of $23.70–$23.81 and $23.40–$23.68, with full trade details available upon request.

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Insider transactions specialist

Administrative Form 4: option exercises paired with sales.

The reporting person exercised non-qualified options at $16.07 and sold the resulting shares at weighted average prices of $23.7148 and $23.5498. After these trades, direct holdings were 939,370 shares. The option grant shows an exercisable date of 02/19/2020 and expiration of 02/19/2026.

This filing documents routine insider transactions without stated strategic commentary. Sale prices reflect weighted averages with disclosed intra-day ranges, a common Form 4 practice. Actual market impact, if any, depends on trade size relative to daily volume, which is not provided in the excerpt.

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

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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^*

Niew Jeffrey

(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)

X	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	President & CEO

3. Date of Earliest Transaction (Month/Day/Year)
10/31/2025

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	10/31/2025		M		98,252	A	$16.07	1,037,622	D
Common Stock	10/31/2025		S		98,252	D	$23.7148(1)	939,370	D
Common Stock	11/03/2025		M		38,404	A	$16.07	977,774	D
Common Stock	11/03/2025		S		38,404	D	$23.5498(2)	939,370	D

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
Non-Qualified Stock Option (right to buy)	$16.07	10/31/2025		M			98,252	02/19/2020	02/19/2026	Common Stock	98,252	$16.07	38,404	D
Non-Qualified Stock Option (right to buy)	$16.07	11/03/2025		M			38,404	02/19/2020	02/19/2026	Common Stock	38,404	$16.07	0	D

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 $23.70 to $23.81, 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 $23.40 to $23.68, 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 Jeffrey Niew	11/04/2025
	** 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 were reported for KN?

The President & CEO exercised options at $16.07 for 98,252 shares on 10/31/2025 and 38,404 shares on 11/03/2025, then sold the same amounts.

At what prices were KN shares sold by the insider?

Weighted average prices were $23.7148 on 10/31/2025 and $23.5498 on 11/03/2025, within stated ranges.

How many KN shares does the insider hold after these trades?

Direct ownership reported is 939,370 shares following the transactions.

What were the price ranges for the KN sales?

On 10/31/2025, sales ranged $23.70–$23.81; on 11/03/2025, $23.40–$23.68.

What are the terms of the exercised KN options?

They are non-qualified stock options with a $16.07 exercise price, exercisable from 02/19/2020 and expiring on 02/19/2026.

Did the filing mention Rule 10b5-1?

The form includes a checkbox for transactions under a Rule 10b5-1(c) plan; the presence of a checkmark is not shown in the excerpt.