Ma Jun

Filings by Ma Jun span 3 companies, the busiest being Quaker Chemical Corp, China Aoyuan Group Ltd. and Hang Pin Living Technology Co. Ltd. Over a trading history stretching from 16 January 2018 to 15 March 2026, the count stands at 4 filings.

Purchases make up the whole of the open-market record (2 purchases). The totals exclude 2 filings filed without an amount. Unlike grants, an open-market purchase is paid for by the insider, at the market price. The rest of the record consists of 1 share grant and 1 option exercise.

On 17 March 2026 came the latest disclosure, a share grant in Quaker Chemical Corp. The last insider purchase was made public on 18 July 2018, 3,020 days ago. The median gap between a trade and its publication by SEC (Form 4) is 2 days. The legal deadline for a Form 4 is two business days after the transaction. Every figure here comes from the filings published by SEC (Form 4) and describes the past, not future prices; it is not investment advice.