Knowles (KN) executive sells 3,623 shares in open-market transaction

Rhea-AI Filing Summary

Knowles Corp vice president and controller Bastarrica Air A. Jr. reported an open-market sale of Common Stock. On April 30, 2026, he sold 3,623 shares at $30.91 per share. After this transaction, he directly holds 47,569 shares of Knowles common stock.

Insider Trade Summary

Net Seller: 3,623 shares ($111,987)

Net Sell 1 txn

Insider Bastarrica Air A. Jr.

Role Vice President, Controller

Sold 3,623 shs ($112K)

Type	Security	Shares	Price	Value
Sale	Common Stock	3,623	$30.91	$112K

Holdings After Transaction: Common Stock — 47,569 shares (Direct, null)

Footnotes (1)

Key Figures

Shares sold: 3,623 shares Sale price per share: $30.91 per share Shares held after transaction: 47,569 shares +1 more

4 metrics

Shares sold 3,623 shares Open-market sale of Common Stock on April 30, 2026

Sale price per share $30.91 per share Price for the 3,623 shares sold

Shares held after transaction 47,569 shares Direct ownership after April 30, 2026 sale

Net shares sold 3,623 shares Net-sell direction in transaction summary

Key Terms

Common Stock, open-market sale, non-derivative, transaction code "S"

4 terms

Common Stock financial

"security_title: "Common Stock""

Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.

open-market sale financial

"transaction_action: "open-market sale""

An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.

non-derivative financial

"transaction_type: "non-derivative""

transaction code "S" financial

"transaction_code: "S""

Form 4 Insider Transactions: What Each Field Means →

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 ILLINOIS 60143

(City) (State) (Zip)

UNITED STATES

(Country)

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
04/30/2026

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

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

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

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	04/30/2026		S		3,623	D	$30.91	47,569	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:

	By: Robyn B. Martin For: POA for Air A. Bastarrica, Jr.	04/30/2026
	** 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.
* Form 4: SEC 1474 (03-26)

FAQ

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

Knowles reported that vice president and controller Bastarrica Air A. Jr. executed an open-market sale of Common Stock. He sold 3,623 shares on April 30, 2026, as disclosed in a Form 4 insider trading report filed with regulators.

How many Knowles (KN) shares did the executive sell and at what price?

Bastarrica Air A. Jr. sold 3,623 shares of Knowles Common Stock in an open-market transaction. The reported sale price was $30.91 per share, giving investors clear visibility into the size and pricing of this individual insider sale.

How many Knowles (KN) shares does Bastarrica Air A. Jr. hold after the sale?

After the reported transaction, Bastarrica Air A. Jr. directly owns 47,569 shares of Knowles Common Stock. This post-transaction holding shows he continues to maintain a meaningful equity stake in the company following the April 30, 2026 sale.

Was the Knowles (KN) insider transaction an open-market sale or another type?

The transaction was classified as an open-market sale of Common Stock, identified with transaction code “S” on Form 4. This indicates shares were sold in the market or a private transaction rather than being granted, gifted, or withheld for taxes.

Does the Knowles (KN) Form 4 show any derivative securities activity?

The Form 4 summary indicates no derivative securities activity for this filing. Derivative transaction counts and exercise shares are all reported as zero, meaning the disclosed event involved only non-derivative Common Stock, not options or other derivative instruments.

How large was the net share change for the Knowles (KN) insider?

The filing’s transaction summary shows a net-sell direction totaling 3,623 shares. There were no offsetting purchases or option exercises, so the executive’s direct holdings decreased by exactly the number of shares sold in this reported transaction.