Vanguard (KN) beneficially owns 6.72M shares, 7.85% stake reported

Rhea-AI Filing Summary

Vanguard Portfolio Management reported beneficial ownership of 6,721,350 shares of Knowles Corp common stock, representing 7.85% of the class as of 03/31/2026. The filing states Vanguard has sole dispositive power over 6,721,350 shares and sole voting power for 37,771 shares.

The disclosure explains the holdings reflect securities managed across Vanguard Portfolio Management LLC and certain affiliates and includes shares held by Vanguard funds and client accounts.

Insights

Institutional Ownership Analyst

Vanguard is a sizable passive holder with dispositive control across multiple managed accounts.

The filing lists 6,721,350 shares beneficially owned, equal to 7.85% of Knowles Corp as of 03/31/2026. Dispositive power is held at the portfolio-management level while voting power is concentrated in a much smaller share count.

Future filings may show if voting alignment changes; the current disclosure attributes holdings to Vanguard Portfolio Management LLC and named affiliates.

Compliance & Proxy Specialist

Schedule 13G disclosure follows passive/manager reporting conventions and cites SEC Release guidance.

The statement references SEC Release No. 34-39538 and describes aggregation across Vanguard funds and managed accounts. It clarifies no single outside person holds >5% of the reported interest.

Watch subsequent amendments or Forms 13D if activist intent or voting control intentions are later declared; current filing is informational.

Key Figures

Shares beneficially owned: 6,721,350 shares Percent of class: 7.85% Sole voting power: 37,771 shares +2 more

5 metrics

Shares beneficially owned 6,721,350 shares as of 03/31/2026

Percent of class 7.85% percent of Knowles Corp common stock

Sole voting power 37,771 shares number of shares with sole power to vote

Sole dispositive power 6,721,350 shares number of shares with sole power to dispose

Reporting form Schedule 13G passive/beneficial ownership disclosure

Key Terms

Beneficially owned, Sole dispositive power, SEC Release No. 34-39538, Investment Company Act

4 terms

Beneficially owned regulatory

"reflects the securities beneficially owned, or deemed to be beneficially owned"

Beneficially owned describes securities or assets where a person has the economic rights and control—such as the right to receive dividends and to direct voting—even if legal title is held in another name. Think of it like having the keys and using a car that’s registered to someone else: you get the benefits and make decisions. Investors care because beneficial ownership reveals who truly controls value and voting power, affecting corporate decisions and takeover dynamics.

Sole dispositive power regulatory

"Sole power to dispose or to direct the disposition of: 6721350"

Sole dispositive power is the exclusive legal authority to decide what happens to a security — for example, whether to sell, transfer, or retain shares — without needing anyone else’s permission. Investors care because it signals who truly controls the economic outcome of an investment: like holding the only key to a safe, the holder can realize gains or losses and may trigger regulatory reporting, insider rules, or influence over corporate ownership.

SEC Release No. 34-39538 regulatory

"In accordance with SEC Release No. 34-39538 (January 12, 1998)"

Investment Company Act regulatory

"investment companies registered under the Investment Company Act of 1940"

The Investment Company Act is a law that sets rules for businesses whose main activity is managing and selling pooled money, such as mutual funds and other investment funds. It matters to investors because it requires clear reporting, limits managers from putting their own interests ahead of clients, and mandates safekeeping and oversight of assets—similar to safety inspections and traffic rules that help keep shared vehicles reliable and trustworthy.

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

Knowles Corp

(Name of Issuer)

Common Stock

(Title of Class of Securities)

49926D109

(CUSIP Number)

03/31/2026

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

schemaVersion:

SCHEDULE 13G

CUSIP Number(s): 49926D109

1

Names of Reporting Persons

Vanguard Portfolio Management

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

PENNSYLVANIA

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 37,771.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 6,721,350.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

6,721,350.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

7.85 %

12

Type of Reporting Person (See Instructions)

IA

Comment for Type of Reporting Person: In accordance with SEC Release No. 34-39538 (January 12, 1998), this Schedule 13G reflects the securities beneficially owned, or deemed to be beneficially owned, by Vanguard Portfolio Management LLC and the following affiliates of Vanguard Portfolio Management LLC or business divisions of such affiliates: Vanguard Fiduciary Trust Company and Vanguard Global Advisers, LLC. This Schedule 13G includes securities held by Vanguard funds, or sleeves thereof, over which Vanguard Portfolio Management LLC exercises dispositive power, in addition to securities held by clients over which the affiliates or business divisions of such affiliates indicated above exercise dispositive and/or voting power. This Schedule 13G does not include securities, if any, beneficially owned by other subsidiaries or affiliates of Vanguard Portfolio Management LLC, or business divisions of such subsidiaries whose ownership of securities is disaggregated from that of the reporting business unit in accordance with such release.

SCHEDULE 13G

Item 1.
(a)	Name of issuer: Knowles Corp
(b)	Address of issuer's principal executive offices: 1151 Maplewood Drive, Itasca, IL, 60143
Item 2.
(a)	Name of person filing: Vanguard Portfolio Management
(b)	Address or principal business office or, if none, residence: 100 Vanguard Blvd,, Malvern, PA, 19355
(c)	Citizenship: PA
(d)	Title of class of securities: Common Stock
(e)	CUSIP Number(s): 49926D109
Item 3.	If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)	An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)	An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)	A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)	A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)	A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)	A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution:
(k)	Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
Item 4.	Ownership
(a)	Amount beneficially owned: 6721350
(b)	Percent of class: 7.85 %
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 37771
	(ii) Shared power to vote or to direct the vote: 0
	(iii) Sole power to dispose or to direct the disposition of: 6721350
	(iv) Shared power to dispose or to direct the disposition of: 0
Item 5.	Ownership of 5 Percent or Less of a Class.
	Not Applicable
Item 6.	Ownership of more than 5 Percent on Behalf of Another Person.
	If any other person is known to have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, such securities, a statement to that effect should be included in response to this item and, if such interest relates to more than 5 percent of the class, such person should be identified. A listing of the shareholders of an investment company registered under the Investment Company Act of 1940 or the beneficiaries of employee benefit plan, pension fund or endowment fund is not required. Vanguard Portfolio Management, including investment companies registered under the Investment Company Act of 1940 and other managed accounts, have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, the securities reported herein.No one other person's interest in the securities reported herein is more than 5%.
Item 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
	Not Applicable
Item 8.	Identification and Classification of Members of the Group.
	Not Applicable
Item 9.	Notice of Dissolution of Group.
	Not Applicable

Item 10.

Certifications:

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under § 240.14a-11.

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

Vanguard Portfolio Management

Signature:	Ashley Grim
Name/Title:	Head of Global Fund Administration
Date:	04/29/2026

FAQ

How many Knowles Corp (KN) shares does Vanguard Portfolio Management report owning?

Vanguard reports beneficial ownership of 6,721,350 shares. This equals 7.85% of Knowles Corp common stock as disclosed in the filing dated 03/31/2026.

What voting and dispositive powers does Vanguard report for KN holdings?

Vanguard reports sole voting power for 37,771 shares and sole dispositive power for 6,721,350 shares. The filing distinguishes voting authority from dispositive control across accounts.

Does the filing indicate Vanguard acts on behalf of other clients for KN shares?

Yes. The filing states holdings reflect securities managed by Vanguard Portfolio Management LLC and affiliates, including Vanguard funds and client accounts over which it exercises dispositive power.

Is any other person reported to have over 5% of Knowles Corp in this filing?

No. The filing states that no other person's interest in the securities reported is more than 5%, and no outside person is identified as holding >5% of the class.

What is the reporting date and signature date on the Schedule 13G for KN?

The ownership figures are reported as of 03/31/2026, and the filing is signed by Ashley Grim on 04/29/2026 as Head of Global Fund Administration.