Taiwan Semiconductor Manufacturing Co. (TSMC) plans to sell up to 152 million common shares of Vanguard International Semiconductor (VIS) [1].
The move signals a strategic shift in TSMC's investment portfolio and its relationship with the specialty foundry. By reducing its equity position, the world's largest contract chipmaker is adjusting its financial exposure to the smaller firm.
TSMC said the plan on Thursday, May 15, 2026, stating that the shares will be sold through a block trade to institutional investors [1]. This method of selling large quantities of stock allows the company to move a significant volume of shares without causing extreme volatility in the open market.
The transaction is designed to trim TSMC's current stake in the company. Before the sale, TSMC held roughly 27% of VIS [2]. Following the completion of the block trade, the company's ownership will drop to about 19% [3].
VIS operates as a specialty foundry in Taiwan, focusing on different market segments than the leading-edge nodes produced by TSMC. The reduction of the stake by eight percent represents a calculated divestment of assets while maintaining a significant minority position in the company.
Institutional investors are the primary targets for this sale. These entities, such as pension funds or insurance companies, typically have the capital necessary to absorb millions of shares in a single transaction, a process that minimizes the immediate impact on the share price.
“TSMC plans to sell up to 152 million common shares of Vanguard International Semiconductor”
This divestment indicates that TSMC is optimizing its balance sheet by reducing its ownership in non-core specialty foundry assets. While TSMC retains a nearly one-fifth stake in VIS, the move suggests a pivot toward prioritizing its own advanced node expansion over the growth of subsidiary-like investments in legacy or specialty chip production.
