Yenny Hamidah Koean

Filings by Yenny Hamidah Koean span 2 companies, the busiest being PT Mandiri Herindo Adiperkasa Tbk and Mandiri Herindo Adiperkasa. Over a trading history stretching from 3 October 2023 to 9 December 2025, the count stands at 19 filings.

Purchases make up the whole of the open-market record (18 purchases, €4.2M). Unlike grants, an open-market purchase is paid for by the insider, at the market price. So far in 2025, the count stands at 3 purchases and no sales.

In size, the median ticket on the buying side is €22k. Of 18 purchases, 7 formed part of a group of insiders buying within 30 days of each other. Purchases made close together by different insiders form what is called a cluster.

The newest entry dates from 12 December 2025: a transaction of €1.4M, in Mandiri Herindo Adiperkasa. The clock since the last published purchase (10 December 2025) now reads 318 days. Filings reach the OJK / IDX feed a median of 1 day after the trade. The shorter that gap, the sooner other investors can see what insiders have done. Every figure here comes from the filings published by OJK / IDX and describes the past, not future prices; it is not investment advice.