William R. Sellers

Board Director

Director

US·SEC (Form 4)

bluebird bio, Inc.2seventy bio, Inc.

Total declarations

Companies

▲ Purchases (0 ops.)

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▼ Sales (0 ops.)

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Latest filing published 17 Nov 2021 for bluebird bio, Inc.. Read the official filing

Insider track record

Disclosed buys

Disclosed sells

Not enough buy signals with a settled T+90 horizon to measure a track record yet.

Signal history

No signal scores available.

William R. Sellers: trading record in brief

This profile gathers the share dealings of William R. Sellers across 2 companies, led by bluebird bio, Inc. and 2seventy bio, Inc. In total, 3 filings cover trades dated from 15 June 2021 to 11 November 2021.

None of the filings is a plain purchase or sale on the open market; they cover grants, option exercises and other movements. Compensation-driven entries like these are tracked, but they say little about how insiders judge the share price.

On 17 November 2021 came the latest disclosure, a transaction in bluebird bio, Inc. Between a trade and the moment it shows up on SEC (Form 4), the median delay is 5 days. The legal deadline for a Form 4 is two business days after the transaction. This summary is built from SEC (Form 4) disclosures alone and does not predict where the share price will go.