MGC Venture Partners 2013 GP, LLC

MGC Venture Partners 2013 GP, LLC discloses dealings in Castle Biosciences Inc to SEC (Form 4). Between 29 July 2019 and 15 May 2020, the trades on record add up to 10 filings.

In open-market terms, that means 3 purchases worth €4.5M on one side and 5 sales worth €1.1M on the other. On balance, insiders were net buyers of €3.4M. Unlike grants, an open-market purchase is paid for by the insider, at the market price. So far in 2020, the count stands at no purchases and 5 sales.

The median purchase comes to €1.7M. Of 3 purchases, 3 formed part of a group of insiders buying within 30 days of each other. A cluster is several different insiders buying the same stock within a short window, a pattern studied more closely than a single purchase.

On 19 May 2020 came the latest disclosure, an open-market sale for €465k in Castle Biosciences Inc. The last insider purchase was made public on 31 July 2019, 2,658 days ago. The median gap between a trade and its publication by SEC (Form 4) is 2 days. US insiders must file a Form 4 within two business days of a trade. Sales are harder to read than purchases, since they often meet personal needs such as tax or diversification. Every figure here comes from the filings published by SEC (Form 4) and describes the past, not future prices; it is not investment advice.