William Hartzel

William Hartzel appears in our data through filings on Emergent BioSolutions Inc. shares, published by SEC (Form 4). We count 17 filings; the first trade dates from 11 November 2023 and the latest from 8 June 2026.

Not one of the filings records a straightforward purchase or sale on the market. Grants and option exercises follow pay plans set in advance, so they reveal less about an insider's own view than a purchase made with personal money.

The newest entry dates from 10 June 2026: a share grant, in Emergent BioSolutions Inc. Between a trade and the moment it shows up on SEC (Form 4), the median delay is 2 days. Section 16 rules allow two business days to file each Form 4. Source: insider filings from SEC (Form 4). Past trades are no guide to future returns.