Yacobus Jemmy Hartanto

This profile gathers the share dealings of Yacobus Jemmy Hartanto in PT Jayamas Medica Industri Tbk. We count 48 filings; the first trade dates from 1 November 2024 and the latest from 16 May 2025.

The open-market side counts 45 purchases for €58k alongside 3 sales for €619. Purchases outweigh sales by €57k. Open-market purchases are the filings investors watch most closely, because the insider pays for the shares out of pocket. In 2025 alone, the filings show 44 purchases and no sales.

Half of the purchases are above €847 and half below. Of 42 purchases, 25 formed part of a group of insiders buying within 30 days of each other. Such overlaps are known as a cluster signal: distinct people reaching the same decision at about the same time.

The latest filing, published on 26 May 2025, reports an open-market purchase of €1,453 in PT Jayamas Medica Industri Tbk. The median gap between a trade and its publication by OJK / IDX is 7 days. The shorter that gap, the sooner other investors can see what insiders have done. This summary is built from OJK / IDX disclosures alone and does not predict where the share price will go.