Alexandria Venture Investments, LLC

This profile gathers the share dealings of Alexandria Venture Investments, LLC across 19 companies, led by Constellation Pharmaceuticals Inc, IDEAYA Biosciences, Inc. and Karuna Therapeutics, Inc. The record holds 25 filings, for trades running from 15 November 2017 to 13 October 2026.

The open-market record is one-sided, with 6 purchases worth €5.7M and not one sale. Unlike grants, an open-market purchase is paid for by the insider, at the market price. In 2026 alone, the filings show 1 purchase and no sales.

The median purchase comes to €651k. Clusters matter here: 5 out of 6 purchases overlapped with buying by a colleague within 30 days. Such overlaps are known as a cluster signal: distinct people reaching the same decision at about the same time.

The latest filing, published on 15 October 2026, reports an open-market purchase of €2.2M in TRex Bio, Inc. Between a trade and the moment it shows up on SEC (Form 4), the median delay is 1 day. For comparison, the SEC allows two business days to file a Form 4. Every figure here comes from the filings published by SEC (Form 4) and describes the past, not future prices; it is not investment advice.