On September 14, Advanced Micro Devices declined 3.28% overnight, trading at $499.56/share, with turnover of $20.6364 million. The drop came amid broad semiconductor sector weakness and insider selling concerns.

On the news front, CEO Lisa Su filed Form 144 statements indicating a planned sale of 70,000 shares personally, valued at approximately $36.47 million, while the Lisa Su and Daniel Lin Family Trust plans to sell 25,000 shares worth roughly $13.03 million. The combined reduction totals nearly $50 million. SEC filings show Su had already sold 45,000 shares over the prior three months. The shares stem from performance stock units granted in August 2024, with Morgan Stanley serving as broker.

The broader semiconductor sector traded lower in tandem, with Micron Technology down 4.08%, Intel down 4.07%, Taiwan Semiconductor Manufacturing down 2.18%, NVIDIA down 1.86%, and Broadcom down 1.76%, amplifying selling pressure on AMD.

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