Capital World Investors owns 1.32M Lumentum shares

Lumentum Holdings Inc. reported that Capital World Investors beneficially owns 1,315,977 shares of common stock, representing 1.8% of the 71,400,000 shares believed to be outstanding.

Rhea-AI Filing Summary

Lumentum Holdings Inc. reported that Capital World Investors beneficially owns 1,315,977 shares of common stock, representing 1.8% of the 71,400,000 shares believed to be outstanding. The filing states the reported holdings include 399,000 Corporate Convertible/Exchangeable Debts, which the filing says represent 2,125 common stock.

Key Figures

Beneficial ownership: 1,315,977 shares Percent of class: 1.8% Shares outstanding (belief): 71,400,000 shares +1 more

4 metrics

Beneficial ownership 1,315,977 shares Amount beneficially owned reported by Capital World Investors

Percent of class 1.8% Percent of class based on 71,400,000 shares believed outstanding

Shares outstanding (belief) 71,400,000 shares Shares believed to be outstanding as stated in the filing

Convertible/exchangeable debts included 399,000 debts (representing 2,125 common stock) Reported as included in the holdings

Key Terms

Schedule 13G/A, Beneficially owned, Corporate Convertible/Exchangeable Debts, Sole Voting Power

4 terms

Schedule 13G/A regulatory

"Amendment No. 4) Lumentum Holdings Inc."

A Schedule 13G/A is an amended public filing with the U.S. securities regulator that updates a previous Schedule 13G, disclosing when an individual or group holds a substantial (typically over 5%) stake in a company and is claiming a passive, non‑controlling intent. Investors monitor these updates because rising or falling holdings can signal changing confidence, potential future moves, or shifts in voting power — like watching a public ledger where large shareholders quietly adjust their positions.

Beneficially owned financial

"Amount beneficially owned: 1,315,977"

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.

Corporate Convertible/Exchangeable Debts financial

"Shares reported include 399,000 Corporate Convertible/ Exchangeable Debts"

Sole Voting Power regulatory

"Sole Voting Power 1,315,977.00"

Sole voting power is the exclusive right to cast votes attached to a shareholder’s stock without needing approval from anyone else. Like holding the only remote control for a TV, it lets that holder decide corporate matters such as board members, mergers, and policy changes, making it important to investors because it concentrates control and can strongly influence a company’s strategy and the value of its shares.

FAQ

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

What stake does Capital World Investors hold in LITE?

Capital World Investors reports beneficial ownership of 1,315,977 shares, equal to 1.8% of the company based on 71,400,000 shares believed outstanding. This percentage is reported in the Schedule 13G/A amendment.

Does the filing show voting or dispositive power for CWI?

The filing states CWI has sole voting power and sole dispositive power over 1,315,977 shares. Shared voting and dispositive powers are reported as 0 in the form.

What are the Corporate Convertible/Exchangeable Debts mentioned?

The form notes 399,000 Corporate Convertible/Exchangeable Debts are included in the reported holdings and are stated to represent 2,125 common stock under the filing's disclosure.

Is Capital World Investors a single entity or group?

The filing explains CWI is a division of Capital Research and Management Company with affiliated investment management entities collectively providing services under the name Capital World Investors, which is deemed the beneficial owner.

What form and amendment number is this filing?

This disclosure is a Schedule 13G/A (Amendment No. 4) reporting beneficial ownership of common stock of Lumentum Holdings Inc. with CUSIP 55024U109.

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

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Accepted by SEC EDGAR 05/14/2026 - 01:55 PM EDT Learn about SEC filing dates

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 4)

Lumentum Holdings Inc.

(Name of Issuer)

Common Stock

(Title of Class of Securities)

55024U109

(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): 55024U109

1

Names of Reporting Persons

Capital World Investors

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

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 1,315,977.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 1,315,977.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

1,315,977.00

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)

1.8 %

12

Type of Reporting Person (See Instructions)

IA

SCHEDULE 13G

Item 1.
(a)	Name of issuer: Lumentum Holdings Inc.
(b)	Address of issuer's principal executive offices: 1001 Ridder Park Drive, San Jose, CA 95131
Item 2.
(a)	Name of person filing: Capital World Investors
(b)	Address or principal business office or, if none, residence: 333 SOUTH HOPE STREET, 55TH FLOOR, LOS ANGELES, CALIFORNIA 90071
(c)	Citizenship: N/A
(d)	Title of class of securities: Common Stock
(e)	CUSIP No.: 55024U109
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: 1,315,977 ** **Capital World Investors ("CWI") is a division of Capital Research and Management Company ("CRMC"), as well as its investment management subsidiaries and affiliates Capital Bank and Trust Company, Capital International, Inc., Capital International Limited, Capital International Sarl, Capital International K.K., Capital Group Private Client Services, Inc., and Capital Group Investment Management Private Limited (together with CRMC, the "investment management entities"). CWI's divisions of each of the investment management entities collectively provide investment management services under the name "Capital World Investors." CWI is deemed to be the beneficial owner of 1,315,977 shares or 1.8% of the 71,400,000 shares believed to be outstanding. Shares reported include 399,000 Corporate Convertible/ Exchangeable Debts, which represent 2,125 Common Stock.
(b)	Percent of class: 1.8 %
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 1,315,977
	(ii) Shared power to vote or to direct the vote: 0
	(iii) Sole power to dispose or to direct the disposition of: 1,315,977
	(iv) Shared power to dispose or to direct the disposition of: 0
Item 5.	Ownership of 5 Percent or Less of a Class.
	Ownership of 5 percent or less of a class
Item 6.	Ownership of more than 5 Percent on Behalf of Another Person.
	Not Applicable
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.

Capital World Investors

Signature:	Jae Won Chung
Name/Title:	Senior Vice President and Associate General Counsel, Capital Research and Management Company
Date:	05/13/2026