Lumentum officer proposes $480K stock sale

The stated Rule 10b5-1 plan-adoption or instruction date is May 19, 2026, if relying on Rule 10b5-1.

Available on EDGAR 09/21/2026 - 04:01 PM EDT Accepted by SEC EDGAR 09/21/2026 - 04:01 PM EDT Learn about SEC filing dates

Rhea-AI Filing Summary

Lumentum Holdings Inc. officer Wupen Yuen reported a proposed sale of 500 common shares, with an aggregate market value of $479,635.00 and an approximate sale date of September 21, 2026. The proposed-sale shares are identified as restricted stock acquired from the issuer on August 21, 2025.

Key Figures

Proposed sale: 500 common shares Aggregate market value: $479,635.00 Common shares outstanding: 89,700,000 shares +3 more

6 metrics

Proposed sale 500 common shares Approximate sale date: September 21, 2026

Aggregate market value $479,635.00 For the proposed sale

Common shares outstanding 89,700,000 shares Share count reported for Lumentum common stock

Restricted stock acquired 500 shares Acquired from the issuer on August 21, 2025

Approximate sale date September 21, 2026 Proposed sale of common shares

Rule 10b5-1 plan-adoption or instruction date May 19, 2026 Date listed if relying on Rule 10b5-1

Key Terms

Rule 10b5-1, Restricted Stock, Aggregate Market Value

3 terms

Rule 10b5-1 regulatory

"Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1"

Rule 10b5-1 is a regulation that allows company insiders to buy or sell their shares at predetermined times, even if they have access to non-public information. It acts like setting a schedule in advance for transactions, helping prevent accusations of unfair trading. This rule provides a way for insiders to plan trades transparently, giving investors confidence that these transactions are not based on hidden information.

Restricted Stock financial

"acquired 500 shares as Restricted Stock"

Shares granted to an individual that carry limits on transfer or sale until certain conditions are met, such as staying with the company for a set time or hitting performance targets. Think of them as a locked gift that gradually opens; for investors they matter because they affect how many shares may enter the market later, signal management incentives and potential dilution, and reveal confidence in future company performance.

Aggregate Market Value financial

"Aggregate Market Value"

Aggregate market value is the combined price you would pay to buy all outstanding shares of a company or all companies in a group at current market prices — essentially the sum of each stock’s market capitalization. It matters to investors because it shows the overall size and weight of an investment or sector (like the total cost to buy every piece of a puzzle), helps compare scale across companies or markets, and influences index composition and risk exposure.

FAQ

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

How many LITE shares is Wupen Yuen proposing to sell?

Wupen Yuen reported a proposed sale of 500 common shares, with an aggregate market value of $479,635.00 and an approximate sale date of September 21, 2026.

What date is listed for Wupen Yuen's Rule 10b5-1 plan or instruction?

The listed date is May 19, 2026, identified as the date of plan adoption or giving of instruction, if relying on Rule 10b5-1.

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

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Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001489550
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	LUMENTUM HOLDINGS INC.
SEC File Number	001-36861
Address of Issuer	1001 Ridder Park Drive San Jose CALIFORNIA 95131
Phone	(408) 546-5483
Name of Person for Whose Account the Securities are To Be Sold	WUPEN YUEN
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Officer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza 8th Floor New York NY 10004	500	479635.00	89700000	09/21/2026	NASDAQ

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	08/21/2025	Restricted Stock	ISSUER			500	08/21/2025	Not Applicable

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
WUPEN YUEN 1001 Ridder Park Drive San Jose CA 95131	Common	09/18/2026	500	460000.00
WUPEN YUEN 1001 Ridder Park Drive San Jose CA 95131	Common	09/17/2026	500	466725.00
WUPEN YUEN 1001 Ridder Park Drive San Jose CA 95131	Common	09/16/2026	500	428415.00
WUPEN YUEN 1001 Ridder Park Drive San Jose CA 95131	Common	09/15/2026	500	420755.00
WUPEN YUEN 1001 Ridder Park Drive San Jose CA 95131	Common	09/14/2026	500	431070.00
WUPEN YUEN 1001 Ridder Park Drive San Jose CA 95131	Common	09/11/2026	500	472205.00
WUPEN YUEN 1001 Ridder Park Drive San Jose CA 95131	Common	09/10/2026	500	480720.00
WUPEN YUEN 1001 Ridder Park Drive San Jose CA 95131	Common	09/09/2026	500	489270.00
WUPEN YUEN 1001 Ridder Park Drive San Jose CA 95131	Common	09/08/2026	500	447995.00
WUPEN YUEN 1001 Ridder Park Drive San Jose CA 95131	Common	09/04/2026	500	430000.00
WUPEN YUEN 1001 Ridder Park Drive San Jose CA 95131	Common	09/03/2026	500	435005.00
WUPEN YUEN 1001 Ridder Park Drive San Jose CA 95131	Common	09/02/2026	500	432245.00
WUPEN YUEN 1001 Ridder Park Drive San Jose CA 95131	Common	09/01/2026	500	450520.00
WUPEN YUEN 1001 Ridder Park Drive San Jose CA 95131	Common	08/31/2026	500	447500.00
WUPEN YUEN 1001 Ridder Park Drive San Jose CA 95131	Common	08/28/2026	500	470475.00
WUPEN YUEN 1001 Ridder Park Drive San Jose CA 95131	Common	08/27/2026	500	479330.00
WUPEN YUEN 1001 Ridder Park Drive San Jose CA 95131	Common	08/26/2026	500	441075.00
WUPEN YUEN 1001 Ridder Park Drive San Jose CA 95131	Common	08/25/2026	500	428322.50
WUPEN YUEN 1001 Ridder Park Drive San Jose CA 95131	Common	08/24/2026	500	412120.00
WUPEN YUEN 1001 Ridder Park Drive San Jose CA 95131	Common	08/21/2026	500	449075.00
WUPEN YUEN 1001 Ridder Park Drive San Jose CA 95131	Common	08/20/2026	1500	1241730.00

144: Remarks and Signature

Remarks
Date of Notice	09/21/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	05/19/2026
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	/s/ Wupen Yuen
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)