Knowles Corp (KN) COO executes Rule 10b5-1 sale of 20,201 shares, keeps large stake

Rhea-AI Filing Summary

Knowles Corp Senior Vice President & COO Daniel J. Giesecke reported selling 20,201 shares of Knowles common stock. The open-market sales took place on May 27, 2026 in two transactions: 10,012 shares at $37.31 per share and 10,189 shares at $37.33 per share.

According to a footnote, the reported prices are weighted averages, with individual trades executed in a range from $37.00 to $38.19 per share. After these sales, Giesecke directly holds 175,855 shares of Knowles common stock. The filing states that the transactions were carried out under a pre-arranged Rule 10b5-1 trading plan adopted on February 25, 2026.

Insights

Equity markets analyst

COO executes pre-planned sale of ~20k Knowles shares, retains sizable stake.

Senior Vice President & COO Daniel J. Giesecke sold 20,201 shares of Knowles Corp common stock in open-market transactions on May 27, 2026, at weighted-average prices around the $37 level. The filing shows these are straightforward non-derivative stock sales, not option exercises or conversions.

A footnote specifies the trades were made under a Rule 10b5-1 trading plan adopted on February 25, 2026, indicating the sales were pre-scheduled rather than opportunistic. After the transactions, Giesecke still directly holds 175,855 shares, suggesting he maintains a meaningful equity position even after the net-sell activity.

Because the transaction size is modest relative to his remaining holdings and tied to a pre-planned program, this filing typically reads as routine portfolio diversification or liquidity management rather than a strong signal on Knowles’ fundamentals. The disclosure mainly updates investors on insider ownership levels at recent market prices.

Insider Trade Summary 10b5-1

Net Seller: 20,201 shares ($753,903)

Net Sell 2 txns

Insider Giesecke Daniel J.

Role Senior Vice President & COO

Sold 20,201 shs ($754K)

Type	Security	Shares	Price	Value
Sale	Common Stock	10,189	$37.33	$380K
Sale	Common Stock	10,012	$37.31	$374K

Holdings After Transaction: Common Stock — 185,867 shares (Direct, null)

Footnotes (1)

1. The transaction reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 25, 2026. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $37.00 to $38.19, 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.

Key Figures

Shares sold: 20,201 shares First sale price: $37.31 per share Second sale price: $37.33 per share +3 more

6 metrics

Shares sold 20,201 shares Total common stock sold on May 27, 2026

First sale price $37.31 per share 10,012 shares sold as open-market transaction

Second sale price $37.33 per share 10,189 shares sold as open-market transaction

Trading price range $37.00–$38.19 Weighted-average prices based on multiple trades

Shares held after sale 175,855 shares Direct holdings after reported transactions

Rule 10b5-1 plan adoption date February 25, 2026 Plan governing the reported sales

Key Terms

Rule 10b5-1 trading plan, weighted average price, open-market sale, Form 4

4 terms

Rule 10b5-1 trading plan regulatory

"The transaction reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person"

A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.

weighted average price financial

"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions"

Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.

open-market sale financial

"transaction_action": "open-market sale","transaction_code_description": "Sale in open market or private transaction""

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.

Form 4 regulatory

"The transaction reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan"

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.

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).

X

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^*

Giesecke Daniel J.

(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)
	Senior Vice President & COO

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/27/2026

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)
			Code	V	Amount	(A) or (D)	Price
Common Stock	05/27/2026		S		10,189(1)	D	$37.33(2)	185,867	D
Common Stock	05/27/2026		S		10,012(1)	D	$37.31(2)	175,855	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. The transaction reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 25, 2026.

2. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $37.00 to $38.19, 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: Daniel Giesecke	05/29/2026
	** 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)

FAQ

How many Knowles Corp (KN) shares did Daniel J. Giesecke sell in this Form 4?

Daniel J. Giesecke sold a total of 20,201 shares of Knowles Corp common stock. The sales occurred in two open-market transactions on May 27, 2026, as reported in the Form 4 filing.

At what prices were the Knowles Corp (KN) shares sold by the COO?

The reported sales occurred at weighted-average prices of $37.31 and $37.33 per share. A footnote notes multiple trades within a broader range from $37.00 to $38.19 per share on the transaction date.

How many Knowles Corp (KN) shares does Daniel J. Giesecke hold after the reported sales?

After the reported transactions, Daniel J. Giesecke directly holds 175,855 shares of Knowles Corp common stock. This post-transaction holding reflects his remaining equity stake following the sale of 20,201 shares.

Were the Knowles Corp (KN) insider sales executed under a Rule 10b5-1 trading plan?

Yes. A footnote states the transactions were effected under a Rule 10b5-1 trading plan adopted by Daniel J. Giesecke on February 25, 2026. Such plans pre-schedule trades, reducing the significance of short-term market timing.

What type of transactions are reported in this Knowles Corp (KN) Form 4?

The Form 4 reports two open-market sales of Knowles Corp common stock, coded “S” for sale. No derivative exercises, gifts, or tax-withholding dispositions are included; all reported activity involves direct, non-derivative stock sales.