W. Michael Flanagan

Filings by W. Michael Flanagan span 2 companies, the busiest being Avidity Biosciences, Inc. and Atrium Therapeutics, Inc. Between 20 January 2023 and 18 September 2026, the trades on record add up to 37 filings.

On the market, this insider has only sold: 19 sales, €12.2M in total. Besides market trades, the filings include 10 share grants and 7 option exercises. Since January 2026: no purchases and 3 sales on the market.

The latest filing, published on 22 September 2026, reports a share grant of €178k in Atrium Therapeutics, Inc. The median gap between a trade and its publication by SEC (Form 4) is 2 days. The legal deadline for a Form 4 is two business days after the transaction. Sales are harder to read than purchases, since they often meet personal needs such as tax or diversification. These figures are compiled from regulatory filings published by SEC (Form 4). They describe what insiders did and are not a recommendation.