Lumentum Holdings Officer Files Form 144 for $290K Proposed Share Sale

Executive Summary

On September 29, 2026, Wupen Yuen, an Officer of Lumentum Holdings Inc. ($LITE), submitted a Form 144 notice disclosing an intention to sell 307 shares of Common Stock with an estimated aggregate market value of $290,115.00 (implying approximately $945.00 per share).

Key Transaction Details

• Issuer: Lumentum Holdings Inc. (CIK: 0001633978)
• Reporting Person: Wupen Yuen (CIK: 0001489550)
• Relationship: Officer
• Securities Offered: 307 Common shares
• Approximate Sale Date: September 29, 2026
• Executing Broker: Morgan Stanley Smith Barney LLC Executive Financial Services
• Acquisition Origin: Shares were originally acquired as restricted stock directly from the issuer on August 21, 2025.

Rule 10b5-1 Trading Plan & Past Activity

• Trading Plan: The proposed sale is executed pursuant to a pre-arranged Rule 10b5-1 trading plan adopted on May 19, 2026.
• Prior 3-Month Sales: The insider has consistently sold 500-share blocks across numerous trading sessions throughout late August and September 2026 under the same systematic disposition framework.

Market Impact & Significance

The proposed sale of 307 shares represents a nominal fraction of Lumentum's 89.7 million outstanding shares. Given that this transaction is pre-scheduled under a 10b5-1 plan and follows continuous small-scale sales, it carries a Low market significance rating and does not signal fundamental shifts in executive sentiment.