Knowles Corp (NYSE: KN) VP sells 6,377 shares, holds 51,192

Filing Impact

(Moderate)

Filing Sentiment

(Negative)

Form Type

Rhea-AI Filing Summary

Knowles Corp Vice President and Controller Air A. Bastarrica Jr. reported open-market sales of Common Stock over three consecutive days. He sold 2,262 shares at $30.68 on April 27, 2026, 1,962 shares at $30.26 on April 28, 2026, and 2,153 shares at $29.96 on April 29, 2026, totaling 6,377 shares. After these transactions, he continues to hold 51,192 shares directly, indicating he retained a substantial personal stake in Knowles Corp.

Insider Trade Summary

Net Seller: 6,377 shares ($193,272)

Net Sell 3 txns

Insider Bastarrica Air A. Jr.

Role Vice President, Controller

Sold 6,377 shs ($193K)

Type	Security	Shares	Price	Value
Sale	Common Stock	2,153	$29.96	$65K
Sale	Common Stock	1,962	$30.26	$59K
Sale	Common Stock	2,262	$30.68	$69K

Holdings After Transaction: Common Stock — 51,192 shares (Direct, null)

Footnotes (1)

Key Figures

Total shares sold: 6,377 shares Shares sold April 27, 2026: 2,262 shares at $30.68 Shares sold April 28, 2026: 1,962 shares at $30.26 +3 more

6 metrics

Total shares sold 6,377 shares Net open-market sales across three transactions

Shares sold April 27, 2026 2,262 shares at $30.68 Open-market sale of Common Stock

Shares sold April 28, 2026 1,962 shares at $30.26 Open-market sale of Common Stock

Shares sold April 29, 2026 2,153 shares at $29.96 Open-market sale of Common Stock

Shares held after final sale 51,192 shares Direct ownership following April 29, 2026 transaction

Net buy/sell direction 6,377 net shares sold transactionSummary netBuySellShares and netBuySellDirection

Key Terms

Form 4, Common Stock, open-market sale, transaction code "S", +1 more

5 terms

Form 4 regulatory

"INSIDER FILING DATA (Form 4):"

Form 4 is a official document that company insiders, such as executives or major shareholders, file with regulators whenever they buy or sell company shares. It provides transparency about how those with inside knowledge are trading, helping investors see if insiders are confident in the company's prospects or may be selling for personal reasons. This information can influence investor decisions by revealing insiders' perspectives on the company's value.

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.

transaction code "S" regulatory

""transaction_code": "S""

direct ownership financial

""ownership_type": "direct""

Form 4 Insider Transactions: What Each Field Means →

04/29/2026 - 04:08 PM

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)
04/27/2026

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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	04/27/2026		S		2,262	D	$30.68	55,307	D
Common Stock	04/28/2026		S		1,962	D	$30.26	53,345	D
Common Stock	04/29/2026		S		2,153	D	$29.96	51,192	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)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)

Explanation of Responses:

	By: Robyn B. Martin For: POA for Air A. Bastarrica, Jr.	04/29/2026
	** 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)

Source: View Original Filing on SEC EDGAR

FAQ

What insider transaction did Knowles Corp (KN) report on this Form 4?

Knowles Corp reported that Vice President and Controller Air A. Bastarrica Jr. sold 6,377 shares of Common Stock in open-market transactions over three days, while retaining 51,192 shares directly after the sales, according to the Form 4 filing.

How many Knowles Corp (KN) shares did the insider sell and at what prices?

Air A. Bastarrica Jr. sold 2,262 shares at $30.68, 1,962 shares at $30.26, and 2,153 shares at $29.96. These three open-market sales totaled 6,377 shares of Knowles Corp Common Stock over consecutive days.

What is the Knowles Corp (KN) insider’s remaining shareholding after these sales?

Following the reported sales, Air A. Bastarrica Jr. holds 51,192 shares of Knowles Corp Common Stock directly. This figure, disclosed in the Form 4, shows that he kept a significant remaining equity position after selling 6,377 shares in late April 2026.

Were the Knowles Corp (KN) insider trades classified as open-market sales?

Yes. Each transaction in the Form 4 is coded “S” and described as an open-market sale or private transaction, with specific per-share prices listed for April 27, 28, and 29, 2026, indicating discretionary stock sales by the officer.

Did the Knowles Corp (KN) Form 4 include any option exercises or derivative positions?

No option exercises or derivative transactions were reported. The filing’s derivativeSummary is empty and transaction codes are all “S” for non-derivative Common Stock, indicating only direct common share sales with no remaining derivative positions disclosed.