U.S. Optical Equipment Executives Sell Hundreds of Millions in Shares Within a Week

Three executives, including a board member at U.S. optical-communications equipment maker Lumentum Holdings Inc. (NASDAQ: LITE), sold shares on the open market between May 8 and 15 under pre-established Rule 10b5-1 trading plans. On May 11, Director Brian Lillie disposed of roughly 10,000 common shares in multiple transactions, converting about $10.3 million (approximately KRW 14 billion) to cash and reducing his holding to about 14,000 shares—still equivalent to over KRW 10 billion. Directors Ian Small and Pamela Fletcher each sold several thousand shares on May 8 and May 14–15, respectively, raising about $6.1 million (around KRW 8 billion) in total. According to SEC filings, all three executives retain equity stakes valued in the tens of billions of won even after these sales.

In its Q3 FY2026 results announced May 5, Lumentum reported quarterly revenue of approximately $808 million (about KRW 1 trillion), a near-90% year-over-year increase. Company disclosures the same month noted a strategic investment of roughly $2 billion (≈ KRW 2.8 trillion) from Nvidia and projected that strong demand for optical components in AI data centers will keep its order backlog filled through 2028. Lumentum is also slated for inclusion in the Nasdaq-100 index on May 18.

Headquartered in California, Lumentum manufactures optical and photonic components—such as transceivers and lasers—for telecom networks and has expanded its business into data centers, carrier services, and industrial and consumer laser markets. Founded in 2015 as a spin-off from JDSU, the company has drawn market attention since its Nasdaq listing as a key beneficiary of rising investment in cloud and AI infrastructure through its high-performance optical products.