Katy Burnett, Principal Accounting Officer at bluebird bio, Inc. (BLUE), sold 123 shares at $46.09 ($6K) on 2020-12-03, disclosed to the SEC on 2020-12-04.
Open-market sale of $6k BLUE by Principal Accounting Officer. Not flagged as scheduled, tax-driven, or recurring — but no specific bearish signal from our filters. Reasons for insider sales vary widely.
Nothing distinguishes this filing.