朗进科技跌2.13%，成交额4023.88万元，主力资金净流出69.24万元

Group 1 - The core viewpoint of the news is that Langjin Technology's stock has experienced fluctuations, with a current price of 19.72 yuan per share and a market capitalization of 1.812 billion yuan, despite a year-to-date increase of 15.05% [1] - The company's main business revenue composition includes 69.87% from rail transit vehicle air conditioning and services, 23.83% from new energy and intelligent thermal management products, and smaller contributions from digital energy intelligent environmental control products and controllers [1] - As of December 10, the number of shareholders for Langjin Technology is 10,400, a decrease of 1.27% from the previous period, with an average of 8,754 circulating shares per person, an increase of 1.29% [2] Group 2 - For the period from January to September 2025, Langjin Technology reported an operating income of 536 million yuan, a year-on-year decrease of 8.12%, while the net profit attributable to the parent company was -13.502 million yuan, reflecting a year-on-year increase of 68.81% [2] - The company has distributed a total of 40.5201 million yuan in dividends since its A-share listing, with 9.1877 million yuan distributed over the past three years [3] - As of September 30, 2025, the top ten circulating shareholders of Langjin Technology saw a change, with the Noan Multi-Strategy Mixed A fund exiting the top ten list [3]