
What Happened?
On September 24, 2025, DreamCastle Construction, the largest shareholder of Nanosillicon Advanced Materials, sold a 3.8% stake (1,037,429 shares) to Silicon Co. in an off-market transaction. This reduced DreamCastle’s stake from 17.59% to 13.79%.
Why the Sale?
The official reason given is the ‘termination of a shareholding agreement.’ However, considering Nanosillicon’s challenging financial situation, including declining sales and widening operating losses, there could be more to the story. A major shareholder selling their stake can signal uncertainty about the company’s future and raise concerns among investors.
What’s Next?
- Short-term Impact: The sale could create market anxiety, putting downward pressure on the stock price. Conversely, if the sale was purely for profit-taking, the impact might be limited, potentially even increasing trading volume and liquidity.
- Long-term Impact: Silicon Co.’s investment objectives and level of involvement in management will significantly influence Nanosillicon’s fundamentals and management stability.
What Should Investors Do?
- Short-term Investors: Given the current uncertainty, holding or selling is recommended.
- Long-term Investors: Careful observation of Silicon Co.’s investment strategy and Nanosillicon’s fundamental improvements is advised before making any investment decisions.
FAQ
Who is the largest shareholder of Nanosillicon Advanced Materials?
As of September 24, 2025, it has changed from DreamCastle Construction to Silicon Co.
Why did the stake sale occur?
The official reason is the ‘termination of a shareholding agreement.’ However, a multifaceted analysis is necessary, considering the company’s financial situation.
What is the impact of this change on the stock price?
Short-term downward pressure is expected due to increased uncertainty, but the long-term impact will depend on the new investor’s strategy.
How should investors respond?
Short-term investors should hold or sell, while long-term investors should carefully consider before making a decision.

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