Glenn P. Muir

Filings by Glenn P. Muir span 4 companies, the busiest being Neuronetics, Inc., Repligen Corp and G1 Therapeutics, Inc. Over a trading history stretching from 13 May 2021 to 18 August 2026, the count stands at 25 filings.

Every open-market trade on record is a purchase: 4 purchases worth €67k, and no sale. A purchase on the market is a deliberate choice to commit personal money, which is why it draws more attention than a grant. Outside the open market, there are 15 share grants and 4 option exercises.

Half of the purchases are above €18k and half below. On 4 out of 4 purchases, another insider of the same company was buying within the same 30 days. When several insiders buy within a few weeks of each other, analysts speak of a cluster purchase.

The record was last updated on 20 August 2026 with an option exercise in Cytek Biosciences, Inc. The clock since the last published purchase (6 September 2024) now reads 772 days. Filings reach the SEC (Form 4) feed a median of 3 days after the trade. Section 16 rules allow two business days to file each Form 4. Source: insider filings from SEC (Form 4). Past trades are no guide to future returns.