ARM Holdings PLC experienced significant downward pressure due to a combination of factors, primarily stemming from broader semiconductor industry concerns and specific company-related developments. A key catalyst for the negative movement was the disclosure of Broadcom’s latest earnings report, which reportedly fell short of lofty expectations for AI chip revenue. This triggered a wave of selling across the semiconductor sector, leading to a general correction within the AI and chip space that impacted ARM and its peers.

Further contributing to the decline were reports of significant insider selling, with company executives, including the Chief Accounting Officer, reducing their holdings in late May and early June. Such actions can be…