国瓷材料今日大宗交易平价成交23.4万股，成交额509.18万元

Group 1 - The core transaction details for Guoci Materials on September 23 include a total of 234,000 shares traded, with a transaction value of 5.0918 million yuan, representing 0.85% of the total trading volume for that day [1][2] - The transaction price was 21.76 yuan per share, which remained unchanged compared to the market closing price of 21.76 yuan [1][2] - The buyer was identified as a brokerage firm, specifically 首创证券股份有限, while the seller was an institutional entity [2]