Knowles VP has shares withheld for tax payment

Knowles Corp vice president and controller Air A. Bastarrica Jr. reported a routine tax-related share withholding.

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.

Insider Trade Summary

Exercise Price or Tax Liability: 2,337 shares

Exercise Price or Tax Liability 1 txn

Insider Bastarrica Air A. Jr.

Role Vice President, Controller

Type	Security	Shares	Price	Value
Exercise Price or Tax Liability	Common Stock	2,337	$26.98	$63K

Holdings After Transaction: Common Stock — 60,200 shares (Direct)

Footnotes (1)

1. 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.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

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.

AI-generated analysis. How Rhea-AI works. Not financial advice.

Form 4 Insider Transactions: What Each Field Means →

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Accepted by SEC EDGAR 02/10/2026 - 12:42 PM EST Learn about SEC filing dates

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

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

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).
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.