Mark Vachon

All filings by Mark Vachon on record concern bluebird bio, Inc., in the capacity of board member. Over a trading history stretching from 2 June 2016 to 30 May 2025, the count stands at 40 filings.

On the market, this insider has only sold: 23 sales, €4.1M in total. Other entries cover 10 share grants and 5 option exercises.

Most recently, on 3 June 2025, the filings show a transaction in bluebird bio, Inc. Typically, a trade is published a median of 2 days after it takes place. Section 16 rules allow two business days to file each Form 4. A sale on its own says little: insiders also sell to pay tax, fund a purchase or diversify. These figures are compiled from regulatory filings published by SEC (Form 4). They describe what insiders did and are not a recommendation.