Knowles (KN) VP withholds 2,337 shares to cover tax on vesting

Rhea-AI Filing Summary

Knowles Corp vice president and controller Air A. Bastarrica Jr. reported a routine tax-related share withholding. On February 6, 2026, 2,337 shares of common stock were withheld at $26.98 per share to cover taxes due when a restricted stock grant vested.

After this withholding, Bastarrica directly beneficially owned 60,200 shares of Knowles common stock. The transaction is coded as “F,” indicating it was related to tax payment rather than an open-market sale.

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^*

Bastarrica Air A. Jr.

(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)
	Vice President, Controller

3. Date of Earliest Transaction (Month/Day/Year)
02/06/2026

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	02/06/2026		F		2,337(1)	D	$26.98	60,200	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

Explanation of Responses:

1. 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.

	By: Robyn B. Martin For: POA for Air A. Bastarrica, Jr.	02/10/2026
	** 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).
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FAQ

What insider transaction did Knowles (KN) report for Air A. Bastarrica Jr.?

Knowles reported a tax-related share withholding for Air A. Bastarrica Jr. On February 6, 2026, 2,337 common shares were withheld to pay taxes triggered by the vesting of a restricted stock grant issued February 6, 2023.

How many Knowles (KN) shares were withheld and at what price?

Knowles withheld 2,337 common shares at $26.98 per share for Air A. Bastarrica Jr. These shares were used to satisfy tax liabilities arising from the vesting of a previously granted restricted stock award.

How many Knowles (KN) shares does Air A. Bastarrica Jr. own after this transaction?

After the transaction, Air A. Bastarrica Jr. beneficially owned 60,200 shares of Knowles common stock directly. This figure reflects holdings after the 2,337 shares were withheld to cover the related tax obligation.

What does transaction code “F” mean in this Knowles (KN) Form 4 filing?

Transaction code “F” indicates a tax-related transaction. In this case, shares were withheld to pay tax due upon vesting of a restricted stock grant, rather than being sold in an open-market transaction.

What triggered the tax withholding for the Knowles (KN) insider transaction?

The tax withholding was triggered by the vesting of a restricted stock grant issued on February 6, 2023. When the restricted shares vested, 2,337 shares were withheld to satisfy the associated tax liability under Rule 16b-3.

What is Air A. Bastarrica Jr.’s role at Knowles (KN)?

Air A. Bastarrica Jr. serves as Vice President and Controller at Knowles. The Form 4 identifies him as an officer of the company, rather than a director or 10% owner, and reports his direct beneficial ownership in Knowles common stock.