BLUE insider trading
bluebird bio, Inc.: insider trade history from SEC Form 4 filings.
BLUE insider activity at a glance
FilingIQ tracks 1,493 insider transactions for BLUE in filings since Jan 6, 2015. The most recent transaction is dated Jun 2, 2025.
Across the full history, 2 open-market purchases
and 933 open-market sales
were filed under transaction codes P and S respectively. Compensatory share awards
(code A) and option exercises (code M) are tracked separately and not counted here.
The average FilingIQ composite score on BLUE insider trades is 68.1/100, produced by FilingIQ's multi-factor Form 4 model. Model framework documented at methodology.
Latest BLUE Form 4 filings
Most recent disclosures. Sign up to filter by score, transaction code, or insider role.
Frequently asked
- How many insider trades does FilingIQ track for BLUE?
- FilingIQ tracks 1,493 Form 4 insider transactions for BLUE (bluebird bio, Inc.), covering filings from Jan 6, 2015 onwards. 0 of those are dated within the last 90 days.
- Are BLUE insiders net buyers or net sellers?
- Across the full Form 4 history for BLUE, 2 transactions (0%) were open-market purchases and 933 (62%) were open-market sales. Compensatory awards and option exercises are filtered out of these counts.
- Where does BLUE insider data come from?
- Every transaction shown on this page is sourced directly from SEC EDGAR Form 4 filings. FilingIQ normalises insider identity across reporting variations and scores discretionary open-market purchases and sales on its multi-factor composite model.
Methodology & sources
Every BLUE insider transaction shown on FilingIQ is parsed directly from a public SEC Form 4 XML filing. Insider identity is normalised across reporting variants (CIK changes, name spellings, related-party indirect holdings). The FilingIQ composite score is documented in full on the team page and algo disclosure. Not investment advice; see disclaimer.