Perceptive Advisors LLC

Perceptive Advisors LLC discloses dealings in 27 companies, chiefly Aldeyra Therapeutics, Inc., Cerevel Therapeutics Holdings, Inc. and LianBio. Between 3 May 2021 and 26 August 2026, the trades on record add up to 88 filings.

Both buying and selling appear: 53 purchases worth €277.9M, against 22 sales worth €31.2M. The amount is not disclosed for 3 filings. Unlike grants, an open-market purchase is paid for by the insider, at the market price. The rest of the record consists of 8 share grants and 1 option exercise. In 2026 alone, the filings show 1 purchase and no sales.

A typical purchase (the median) is worth €1.5M. Of 50 purchases, 7 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 27 August 2026 came the latest disclosure, an open-market purchase for €6.4M in Immatics N.V. Between a trade and the moment it shows up on SEC (Form 4), the median delay is 2 days. For comparison, the SEC allows two business days to file a Form 4. Source: insider filings from SEC (Form 4). Past trades are no guide to future returns.