Ramiro Guerrero

Ramiro Guerrero discloses dealings in MAIA Biotechnology, Inc. to SEC (Form 4). The record holds 27 filings, for trades running from 28 July 2022 to 10 September 2026.

The open-market record is one-sided, with 27 purchases worth €1.0M and not one sale. A purchase on the market is a deliberate choice to commit personal money, which is why it draws more attention than a grant. So far in 2026, the count stands at 6 purchases and no sales.

A typical purchase (the median) is worth €14k. As a share of market capitalisation, the median purchase stands at 0.045%, based on 6 purchases. 19 out of 26 purchases came within 30 days of a purchase by at least one other insider of the same company. A cluster is several different insiders buying the same stock within a short window, a pattern studied more closely than a single purchase. Ninety days after publication, 3 purchases show a median change of -3.3%, with the price up in 33% of them. They describe history only and say nothing certain about the share price ahead.

The latest filing, published on 14 September 2026, reports an open-market purchase of €43k in MAIA Biotechnology, Inc. The median gap between a trade and its publication by SEC (Form 4) is 4 days. The legal deadline for a Form 4 is two business days after the transaction. These figures are compiled from regulatory filings published by SEC (Form 4). They describe what insiders did and are not a recommendation.