精达股份：公司目前持有上海超导18.15%股份，是上海超导单一持股第一大股东

Group 1 - The company currently holds an 18.15% stake in Shanghai Superconductor, making it the largest single shareholder [2] - The inquiry was made by an investor on an interactive platform regarding the company's shareholding status [2] - The response was provided by the company on October 20, confirming its position as the largest shareholder [2]