On October 7, Lumentum fell 3.3% in regular trading, trading at $1,092.894/share, with Turnover of $613 million. The decline followed disclosure that CFO Ali Wajid sold 24,542 shares on October 1 under a pre-arranged 10b5-1 plan at approximately $1,048.5 per share, totaling roughly $25.73 million. While such plans typically reduce insider-trading concerns, the transaction still dampened short-term sentiment.

The communications equipment sector also moved lower, with Applied Optoelectronics down 6.01%, Ciena down 2.79%, Nokia down 4.24%, Cisco down 0.72%, and Arista Networks down 1.73%. Sector-wide selling amplified Lumentum's pullback despite recent analyst price-target increases from Stifel to $1,232 and Citigroup to $1,400, suggesting profit-taking after significant prior gains.