IDG China Venture Capital Fund IV Associates L.P. reduced its stake in shares of Niu Technologies (NASDAQ:NIU) by 97.4% in the 1st quarter, according to the company in its most recent filing with the Securities & Exchange Commission. The fund owned 14,430 shares of the company’s stock after selling 533,561 shares during the period. Niu Technologies accounts for approximately 0.0% of IDG China Venture Capital Fund IV Associates L.P.’s investment portfolio, making the stock its 5th biggest position. IDG China Venture Capital Fund IV Associates L.P.’s holdings in Niu Technologies were worth $529,000 as of its most recent SEC filing….